Ormazabal ekor.rps General Instructions Manual

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ekor.rps

Multifunctional protection unit Volume 1 of 3

General instructions

IG-150-EN, version 04, 03/10/16

LIB

CAUTION!

When medium-voltage equipment is operating, certain components are live, other parts may be in movement and some may reach high temperatures. Therefore, the use of this equipment poses electrical, mechanical and thermal risks.

In order to ensure an acceptable level of protection for people and property, and in compliance with applicable environmental recommendations, Ormazabal designs and manufactures its products according to the principle of integrated safety, based on the following criteria:

• Elimination of hazards wherever possible.

• Where elimination of hazards is neither technically nor economically feasible, appropriate protection functions are incorporated in the equipment.

• Communication about remaining risks to facilitate the design of operating procedures which prevent such risks, training for the personnel in charge of the equipment, and the use of suitable personal protective equipment.

• Use of recyclable materials and establishment of procedures for the disposal of equipment and components so that once the end of their service lives is reached, they are duly processed in accordance, as far as possible, with the environmental restrictions established by the competent authorities

Consequently, the equipment to which the present manual refers complies with the requirements of section 11.2 of Standard IEC 62271-1. It must therefore only be operated by appropriately qualified and supervised personnel, in accordance with the requirements of standard EN50110-1 on the safety of electrical installations and standard EN50110-2 on activities in or near electrical installations. Personnel must be fully familiar with the instructions and warnings contained in this manual and in other recommendations of a more general nature which are applicable to the situation according to current legislation

The above must be carefully observed, as the correct and safe operation of this equipment depends not only on its design but also on general circumstances which are in general beyond the control and responsibility of the manufacturer. More specifically:

• The equipment must be handled and transported appropriately from the factory to the place of installation.

• All intermediate storage should occur in conditions which do not alter or damage the characteristics of the equipment or its essential components.

• Service conditions must be compatible with the equipment rating.

• The equipment must be operated strictly in accordance with the instructions given in the manual, and the applicable operating and safety principles must be clearly understood.

• Maintenance should be performed properly, taking into account the actual service and environmental conditions in the place of installation.

The manufacturer declines all liability for any significant indirect damages resulting from violation of the guarantee, under any jurisdiction, including loss of income, stoppages and costs resulting from repair or replacement of parts.

[1]

Warranty

The manufacturer guarantees this product against any defect in materials and operation during the contractual period. In the event that defects are detected, the manufacturer may opt either to repair or replace the equipment. Improper handling of this equipment and its repair by the user shall constitute a violation of the guarantee.

Registered Trademarks and Copyrights

All registered trademarks cited in this document are the property of their respective owners. The intellectual property of this manual belongs to Ormazabal.

[1]

For example, in Spain the “Regulation on technical conditions and guarantees for safety in high-voltage electrical installations” – Royal Decree

337/2014 is obligatory.

In view of the constant evolution in standards and design, the characteristics of the elements contained in this manual are subject to change without prior notice. These characteristics, as well as the availability of components, are subject to confirmation byOrmazabal.

General instructions ekor.rps

Contents

1. General description ...................................................6

1.1. Scope of the manual .........................6

1.2. Functions....................................6

1.3. Model coding................................7

1.4. User interface...............................10

1.4.1. Local .......................................10

1.4.2. Remote.....................................10

1.5. Hardware configurations....................11

1.6. Environmental conditions ...................12

1.7. Tests........................................12

1.7.1. Electrical tests ..............................12

1.7.2. Environmental tests .........................12

1.7.3. Mechanical tests ............................12

1.8. CE Conformity ..............................12

1.9. Wiring diagrams ............................13

2. Hardware ..................................................................33

2.1. Constructive characteristics. Horizontal box

(ekor.rps-h).................................33

2.2. Constructive characteristics (ekor.rps-tcp) ...34

2.3. Rear terminals ..............................35

2.4. Options for rear communications ports . . . . . .36

2.5. RS485 connection detail between

some units..................................38

2.6. Connection between fiber optic and

a radio modem .............................39

2.7. Ethernet communication....................40

2.7.1. Ethernet via GOF ............................40

2.7.2. Ethernet via RJ45 cable......................40

2.8. Technical characteristics.....................41

2.8.1. Power Supply ...............................41

2.8.2. Output Contacts ............................41

2.8.3. Digital inputs (optoisolated).................41

2.8.4. IRIG-B input.................................42

2.8.5. Analog outputs .............................43

2.8.6. Phase and neutral current circuits

(standard rating 1 A) ........................43

2.8.7. Sensitive neutral or isolated neutral

current circuits (standard rating 0.025 A).....43

2.8.8. Phase and neutral current circuits

(specified rating 1/5 A) ......................43

2.8.9. Sensitive neutral or isolated neutral current

circuits (specified rating 0.25/0.025 A) .......43

2.8.10. Voltage circuits .............................43

2.8.11. Measurements accuracy.....................44

2.9. Operating frequency........................44

2.10. Phase order.................................44

3. Unit configuration ...................................................45

3.1. Programming of digital inputs and

logic inputs .................................45

3.2. Programming of digital outputs .............46

3.3. Programming of LEDs .......................47

3.4. Programming of general settings............47

3.4.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .47

3.4.2. Setting ranges (table 0, single)...............48

3.5. Communication configuration ..............49

3.5.1. Communication via front door (Port 1_1)

and rear port Nr. 2 (Port 1_2) (COM 1)........49

3.5.2. Communication via rear port Nr. 1

(Port 2) (COM 2).............................49

3.5.3. Ethernet communication....................51

3.6. Other configuration settings ................52

3.6.1. Frequency ..................................52

3.6.2. Language...................................52

3.6.3. Phase order .................................52

3.6.4. Neutral Parameter ..........................52

3.6.5. Calibration..................................52

3.6.6. Test mode ..................................52

3.6.7. Push-buttons/LEDs enabling and locking

by command ...............................53

3.6.8. Power supply supervision enabling ..........53

3.6.9. Power supply enabling ......................53

3.6.10. Display contrast setting .....................53

4. Protection functions. Description and settings.....54

4.1. Phase overcurrent protection................54

4.1.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .54

4.1.2. Settings ranges of the timed characteristic

(6 tables) (normal and HIGH2) ...............54

4.1.3. Timing cancellation .........................55

4.1.4. Settings ranges of the instantaneous characteristic (low level) (6 tables)

(normal and HIGH2).........................55

4.1.5. Settings ranges of the instantaneous

characteristic (high level) (6 tables) ..........56

4.2. Neutral overcurrent protection ..............56

4.2.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .56

4.2.2. Setting ranges of the timed characteristic

(6 tables) (normal and HIGH2) ...............56

4.2.3. Setting range of neutral time inhibition

(6 tables) ...................................57

4.2.4. Settings ranges of the instantaneous characteristic (low level) (6 tables)

(normal and HIGH2).........................57

4.2.5. Settings ranges of the instantaneous characteristic (high level) (6 tables)

(normal and HIGH2).........................57

4.3. Instantaneous special operation.............58

4.4. 2

4.5. Protection functions blocking with

4.6. Directionality of the phase and

4.6.1. Phase directional in quadrature (67) .........62

harmonic restraint .......................60

manual closing .............................60

neutral overcurrent protections .............61

IG-150-EN version 04; 03/10/16

Contents General instructions

ekor.rps

4.6.2. Phase directional by sequences (67) .........63

4.6.3. Neutral directional (67N); polarization

by S0(V0)....................................64

4.6.4. Neutral directional (67N); polarization

by S-(V2) ...................................65

4.6.5. Neutral directional (67N); polarization

by S0+S-(V0+V2) ..........................66

4.6.6. Neutral directional (67N); polarization

by I .........................................66

4.6.7. Neutral directional (67N); polarization by S0+I(V0+I

) ...........................67

pol

4.6.8. Neutral directional (67N); polarization by S– + I(V2+I

)...........................67

pol

4.6.9. Neutral directional (67N); polarization by S0 + S- + I (V0 + V2 + I

) ..................68

pol

4.6.10. Neutral directional (67N); watimetric

directional ..................................69

4.6.11. Neutral directional (67N);

I*cos (φ)/I*sen (φ) directional ................70

4.7. Sensitive neutral overcurrent protection.....72

4.7.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .72

4.7.2. Setting ranges of the timed characteristic

(6 tables) (normal and HIGH2) ...............72

4.7.3. Setting ranges of the instantaneous characteristic (single level) (6 tables)

(normal and HIGH2).........................72

4.7.4. Directionality ...............................73

4.8. Current unbalance protection ...............77

4.8.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .77

4.8.2. Setting ranges of the timed characteristic

(6 tables) ...................................77

4.8.3. Setting ranges of the instantaneous

characteristic (6 tables)......................77

4.9. Broken conductor protection................78

4.9.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .78

4.9.2. Setting ranges (6 tables).....................78

4.10. Phase characteristic voltage control

(function 51 V/50 V) .........................78

4.10.1. Mode 1 (51V) ...............................78

4.10.2. Mode 2 (51V) ...............................79

4.10.3. Mode 2 (50 V) ...............................79

4.10.4. Summary ...................................79

4.11. High current lockout . . . . . . . . . . . . . . . . . . . . . . . .80

4.11.1. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

4.11.2. Setting (table 0, single)......................80

4.12. Cold load pickup............................80

4.12.1. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

4.12.2. Settings (table 0, single) .....................81

4.13. Isolated neutral protection ..................82

4.13.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .82

4.13.2. Setting ranges ..............................82

4.14. Overvoltage protection .....................83

4.14.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .83

4.14.2. Setting ranges of the timed characteristic

(6 tables) ...................................83

4.14.3. Setting ranges of the Instantaneous

characteristic (6 tables)......................84

4.15. Undervoltage protection ....................84

4.15.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .84

4.15.2. Setting ranges of the timed characteristic

(6 Tables) ...................................84

4.15.3. Setting ranges of the instantaneous

characteristic (6 tables)......................85

4.16. Voltage unbalance protection ...............85

4.16.1. Timed characteristic.........................85

4.16.2. Instantaneous characteristic.................86

4.17. Zero sequence overvoltage protection ......86

4.17.1. Setting range (6 tables) .....................87

4.18. Frequency protection .......................87

4.18.1. Minimum frequency ........................88

4.18.2. Maximum frequency ........................88

4.18.3. Frequency gradient .........................88

4.19. Fuse failure .................................90

4.20. Teleprotection ..............................91

4.20.1. Operation ..................................91

4.20.2. Setting range (6 tables) .....................91

4.20.3. Protection trip mask (6 tables) ...............92

4.20.4. Used signals ................................92

4.21. Thermal image..............................96

4.21.1. General description . . . . . . . . . . . . . . . . . . . . . . . . .96

4.21.2. Settings ....................................97

4.21.3. Trip times...................................97

4.21.4. Heating curves .............................98

4.21.5. Cooling curves..............................98

4.22. Field loss protection.........................99

4.22.1. Overview ...................................99

4.22.2. General settings range ......................99

4.22.3. MHO area settings range ..................100

4.23. Power protection .........................101

4.23.1. General................................... 101

4.23.2. Minimum power protection ...............101

4.23.3. Maximum power protection............... 102

4.23.4. Reverse power protection .................102

4.23.5. Reactive power reverse protection.........103

4.23.6. Minimum apparent power protection .....103

4.23.7. Maximum apparent power protection .....104

4.24. Breaker monitorin......................... 104

4.24.1. General description . . . . . . . . . . . . . . . . . . . . . . . 104

4.24.2. Setting range (6 tables) ................... 105

4.24.3. Coil monitoring example ..................105

4.25. Coil monitoring example ..................106

4.25.1. General description . . . . . . . . . . . . . . . . . . . . . . . 106

4.25.2. Setting range (6 tables) ................... 106

4.26. Breaker failure protection .................106

4.26.1. General description . . . . . . . . . . . . . . . . . . . . . . . 106

4.26.2. Setting range (6 tables) ................... 107

4.27. Tap changer locking (50TCL function)...... 107

4.28. Locking of the protection functions ....... 107

4.29. Fault locator ..............................107

4.29.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

4.29.2. Programming settings and

collecting results..........................108

4.29.3. Locator operation......................... 109

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

Contents

5. Automation functions .......................................... 112

5.1. Recloser ..................................112

5.1.1. General description . . . . . . . . . . . . . . . . . . . . . . . 112

5.1.2. Operation ................................113

5.1.3. Setting range (6 tables) ...................115

5.1.4. Trips enabling (6 tables) ...................115

5.1.5. Enable of reclosings (6 tables) ............. 115

5.1.6. Other operation characteristics............ 116

5.2. Sequence coordination ...................116

5.3. Reclosing after tripping

by minimum frequency ...................117

5.3.1. General description . . . . . . . . . . . . . . . . . . . . . . . 117

5.3.2. Settings ..................................117

5.4. Special recloser to operate with

protections with single-pole trip........... 118

5.5. Syncrocheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

5.5.1. General description . . . . . . . . . . . . . . . . . . . . . . . 118

5.5.2. Settings ..................................119

5.6. Close locking with presence or

absence of voltage........................ 119

5.7. Automation function for distribution

substations ...............................120

5.7.1. Unloaded springs automation functions ...120

5.7.2. Voltage presence ......................... 120

5.7.3. Lockings.................................. 120

6. Other settings........................................................ 121

6.1. Programming of logic outputs ............121

6.2. Selectivity logic functions ................. 122

6.3. Measurements chronological record....... 122

8. Other functions ..................................................... 129

8.1. Time setting and synchronization .........129

8.1.1. Time setting .............................. 129

8.1.2. Synchronization ..........................129

8.2. Control messages .........................129

8.3. Mando local/remoto ......................135

8.4. Commands by keyboard and

front push-buttons........................ 136

8.5. Power supply supervision .................136

8.6. External supply supervision ............... 136

8.7. Temperature supervision.................. 137

8.8. Test mode ................................137

9. Operation mode .................................................... 138

9.1. Through keyboard/display ................138

9.1.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

9.1.2. Elements of the keyboard/display unit .....138

9.1.3. Operating mode .......................... 139

9.2. Through the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

10. Reception, storage, installation and tests .......... 141

10.1. Reception and storage ....................141

10.2. Connecting procedure ....................141

10.2.1. Power supply .............................141

10.2.2. Earth connection ......................... 141

10.2.3. RS232 cable connections to be used

between the PC and the ekor.rps unit ....141

10.3. Unit addressing ...........................142

10.4. Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

7. data acquisition functions.................................... 123

7.1. Events reports ............................123

7.2. fault records ..............................124

7.3. Measurements............................ 125

7.3.1. Measurements at the secondary........... 125

7.3.2. Measurements at the primary .............126

7.4. Measurements historical report ...........127

7.4.1. General description . . . . . . . . . . . . . . . . . . . . . . . 127

7.4.2. Settings range (6 tables)...................127

7.5. Statistical data ............................127

7.6. Protection status..........................128

7.6.1. By keyboard/display ...................... 128

7.6.2. Through PC (protections console) ......... 128

7.7. Oscillograph data recorder ................128

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

1. General description

The ekor.rps units are multifunctional protection relays of numerical technology, and they constitute the basic element of protection, measurement and control for cogeneration facilities or for HV/MV electrical bays. They can be used as autonomous elements of protection, control and measurement of an electric bay, or integrated within an integrated protection and control system.

1.1. Scope of the manual

This manual does not t a certain ekor.rps model, it ts the whole options (for FW version equal or newer than W). For each specic model only the physical characteristics and functions of the model are applied. The manual consists of two volumes: The rst contains the information regarding conguration, functions etc. and the second contains the

1.2. Functions

1. Protection

Standard functions

a. Three phase overcurrent protection (3 x 50/51, with two

instantaneous levels)

b. Neutral overcurrent protection (50N/51N, with two

instantaneous levels)

c. Phase current unbalance protection (46) d. Broken conductor protection (46 BC) e. Breaker monitoring f. Close and trip circuit monitoring g. Breaker failure

harmonic restraint

h. 2

Functions depending on model

a. Sensitive neutral overcurrent (50NS/51NS) b. Directionality for the phase overcurrent (3 x 67) c. Directionality for the neutral overcurrent (67N) d. Isolated neutral directional (67IN) e. Second directional overcurrent unit (67, 67N), independent

of the first unit

f. Voltage controlled overcurrent (50/51 V), cold load

pickup, high current lockout

g. Special functions (zones, pilot protection, negative

sequence directional, etc.)

h. Phase voltage protection: Overvoltage (3 x 59), undervoltage

(3 x 27), unbalance (47)

i. Zero sequence overvoltage protection (59N, 64)

Inside the family dierent models exist that dier to each other for some hardware aspect or for their functionality. The Firmware is common for all the models; the available functions for the user in each model are dened in a circuit of programmable logic (PLD). The Firmware is chargeable in the equipment through the serial port, what facilitates the versions updating.

following appendixes: Curves for the operation of the timed functions, communication protocols, keyboard/display menu structure, etc.

Anyway, each unit is provided with a resumed “characteristics sheet”, which describes the functions of the specic model and its interconnections diagram.

j. Frequency protection: Maximum (81 M), minimum (81 m),

df/dt (81 R)

k. Power protection (32): Maximum, minimum, reverse l. Fuse failure surveillance m. Thermal image (49) n. Fault locator o. Field loss

2. Automatisms

Functions depending on model

a. Three-phase recloser (overcurrent trips) b. Recloser for single-phase overcurrent trips c. Recloser for restoration after frequency trips d. Syncrocheck e. Special automatisms for distribution substations (slack

springs, voltage presence)

3. Measurements

a. Phase and neutral current measurement (optional:

Sensitive neutral)

b. Simple and compound voltage measurement c. Active, reactive and apparent power measurement d. Active and reactive energy measurement e. Power factor measurement f. Current maximeter g. Negative sequence measurement (I

2/I1

) in %

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

General description

4. Data acquisition

a. Events chronological reports b. Fault chronological reports c. Maximum and minimum measurement historical d. Oscillograph data recorder

1.3. Model coding

The ekor.rps protection unit has the following models:

DC: 67+67N+46+46FA+50BF(trif)+74TC/CC+ 67NS+ 67NA+49+51V+cold load pickup+50CSC+68FF

The following models are available as an option and when conrmed by Ormazabal’s technical-commercial department:

1. Non directional:

NB: 50/51 + 50/51N + 46 + 46BC + 50BF (three-phase) + 74TC/CC

NC: Model NB + 50/51NS + 49 + 51 V + cold load pickup + 50TCL + 68FF

ND: Model NC + 59 + 27 + 47 + 59N + 81 O/U + 81R + 25

NE: Model ND + FL

For all of them, the 79 function is optional.

2. Directional:

DB: 67 + 67N + 46 + 46BC + 50BF (three-phase) + 74TC/CC

DD: Model DC + 59 + 27 + 47 + 59N + 81 O/U + 81R + 25

DE: Model DD + 2

DF: Model DE + FL

unit 67/67N + 50BF (single-phase)

5. Other characteristics

a. Settings tables. Except for the configuration settings,

which are single table settings, there are 6 tables for the various setting groups. One of the 4 tables is the active one in a certain moment. The active table selection can be done through the keyboard/display (in “change settings”), or by command through the message from the protections console or by activation of a digital input.

3. Distributed generation interconnection:

IB: 50/51 + 67N + 46 + 46BC+ 50BF (three-phase) + 74TC/CC + 68FF + 59 + 27 + 47 + 59N + 81 O/o + 81R + 25 + 32 + 79 + 79 (81 m) + high current lockout.

IC: Model IB + 49 + 51 V + cold load pickup + 50TCL + 2 67/67N + 40.

unit

4. For distribution substations:

CR: 50/51 + 50/51 N + 46 + 46 BC+ 50 BF (three-phase) + 74TC/CC + 49 + 79 + high current lockout + special automatisms.

5. Special models: They are those that, in their functionality, do not exactly correspond to any of the families described:

E1: 67 + 67N + 67NS + 46 + 46FA + 50BF (three-phase) + 74TC/CC + 51 V + 79 +High current Lockout + LF.

E2: 67 + 67N +67NS + 51 V + 27 + 59 +59N + FF + 81 + 32 + 49.

E3: 50/51 + 50/51N + 50/51NS + 67NA + 79.

E4: E1: 67 + 67N + 67NS + 46 + 46FA + 50BF (three-phase) + 74TC/CC + 51 V + 79 + high current lockout + cold load pickup + 50CSC + 59N + 25 + LF.

For all of them, the 79 function is optional.

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

Model coding:

ekor.rps

MODELO PL300

MODEL

no direccional

ekor.rps non directional

ekor.rps Directional

direccional

ekor.rps Interconnection

interconexión

Distribution center

ekor.rps

centros de reparto

BOX TYPE Horizontal

TCP integrated Note 5 POWER SUPPLY

ANALOG INPUTS TERMINALS Pin type Standard terminals Closed terminals EXTENSION MODULE

No module 9 Dls (6 indepen.) + 7 DOs (3 indepen.) DIGITAL INPUTS VOLTAGE Range: 18-160 Vdc Range: 86-280 Vdc REAR COMMUNICATION PORTS

PFO (COM-2) + PFO (COM-1) RS232 (COM-2) + RS232 (COM-1) RS485 (COM-2) + RS232 (COM-1)

SPECIAL FUNCTIONS AND AUTOMATISMS

Battery voltage measurement and optional operating temperature

Optional operating temperature Battery voltage measurement and optional operating temp. Current polarized 67N No 0 Yes 1 V0 or IN calculation None 0

0 calculated

N calculated

I Both (only for models DD + current polarized 67N, DE + current polarized 67N, DF + current polarized 67N)

NC ND NE DB DC DD DE DF

IB IC

YdcV 06-81 ZdcV 082-68

Programmable Protocol Programmable Protocol Programmable Protocol Programmable Protocol

1 2

0 1

Y Z

AGFO BPFO C RS232 DRS485 E GFO (COM-2) + GFO (COM-1)

Note 1

Note 1 Note 1

Note 1

IGFO (COM-2) + RS232 (COM-1) JEthernet RJ45 + GFO (COM-2)

Note 6

KEthernet GFO + GFO (COM-2)

Note 6

LEthernet RJ45 + RS232 (COM-2)

Note 6

MEthernet RJ45 + RS485 (COM-2)

Note 6

TInternal communication for TCP

Note 5

0 No Functions

Note 2

179 + 79 (81 m) (Included in models IB, IC y CR) 285 (Only for directional PL-300 models)

Note 2

379 + 79 (81 m) + 85 (Only for directional PL-300 models)

0None 1Battery voltage measurement 2 3

Note 4

Note 3

For models with two communication ports, COM 2 port protocol is programmable, and COM 1 protocol is always PROCOME.

79 (81 m) (recloser by underfrequency) unit, only exist for models with 81 U

For the models marked with an * in the transformer arrangement table

Only for models with 67 N and T9 = Ip (*olarization current)

With “T” type box, the communication must be “T ”

In this case, the Ethernet port protocol is encapsulated PROCOME

1 2 3

Figure 1.1. Model coding

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

Transformer arrangement:

T4 T5 T9

Model nb Model nc Model nd* Model nd* Model ne* Model db Model db + current polarized 67N Model dc Model dc + current polarized 67N* Model dc + current polarized 67N* Model dd* Model dd* Model dd + current polarized 67N Model de* Model de + current polarized 67N Model df* Model df + current polarized 67N Model ib Model ib + current polarized 67N* Model ib + current polarized 67N* Model ic Model ic + current polarized 67N* Model cr

See transformer arrangement examples in the wiring diagrams.

General description

Same transformer arrangement as model nd

Same transformer arrangement as model dd

Same transformer arrangement as model dd + current polarized 67N

Same transformer arrangement as model dd

Same transformer arrangement as model dd + current polarized 67N

Same transformer arrangement as model ib

Same transformer arrangement as model ib + current polarized 67N

SYNC

V0 calculated

IN calculated

V0 calculated

IN calculated

V0 calculated

IN calculated

IN and V0 calculated

V0 calculated

IN calculated

Table 1.1. Transformer arrangement

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

1.4. User interface

1.4.1. Local

The front board has:

1. 16 key keyboard

2. 4 signaled push-buttons

a. : Breaker closure

: Breaker opening

: Local/remote

:It validates the other three pushbuttons, to avoid unwished maneuvers. It must be pushed at the same time you push the other buttons for them to have effect

1.4.2. Remote

Depending on model the rear board has one or two ports which can be glass ber optic (ST type connector), plastic ber optic, RS232 or RS485 for connection to PC, modem or substation control unit (in integrated systems). The protocol can be PROCOME, DNP 3.0, MODBUS or IEC 870-5-101 or IEC870-5-103.

These pushbuttons must be pushed at least for 0.5 s to be considered active.

Moreover, the pushbuttons to be eective, “pushbutton enable” setting must be set as “YES” (see “other

conguration settings” chapter).

3. 2 line, 16 character LCD

4. 7 red LEDS and one green/red

5. RS232 connector for direct connection with a PC.

PROCOME protocol

There are also models with one Ethernet port (ber optic or RJ45), with PROCOME TCP/IP protocol.

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

1.5. Hardware configurations

General description

Next are the Hardware possibilities that dene a specic model:

1. Box type:

a. Horizontal

2. Terminal type:

a. For pin tipy terminals b. For closed terminals

3. Power supply:

a. 125/220V b. 24/48V

4. Digital inputs voltage range:

a. Extended (low): 18 up to 160 Vdc. They are single-

directional inputs (with polarity).

b. Extended (high): 86 up to 280 V

. They are single-

directional inputs (with polarity).

c. Restricted 24 V

: 18 up to 34 Vdc. They are single-

directional inputs (with polarity).

d. Restricted 48 V

: 36 up to 60 Vdc. They are single-

directional inputs (with polarity).

e. Restricted 125 V

: 85 up to 150 Vdc. They are single-

directional inputs (with polarity).

f. Restricted 220 V

: 165 up to 264 Vdc. They are single-

directional inputs (with polarity).

5. Number of digital inputs/outputs:

a. Standard:

8 inputs (5 independent, 3 with a common point). 7 outputs (4 independent, 3 with a common point).

b. Extended: Adds to the standard:

9 inputs (6 independent, 3 with a common point). 7 outputs (4 independent, 3 with a common point).

c. Extended (option 2): adds to the standard:

5 independent inputs. 6 outputs (4 independent, 2 with a common point). 2 analog outputs (0 to 5 mA); for other ranges please

consult Ormazabal’s technical–commercial department.

6. Rear communication:

a. Glass optical fiber (GOF) b. Plastic optical fiber (POF) c. RS232 d. RS485 e. GFO + GFO f. PFO + PFO g. RS232 + RS232 h. RS485 + RS232 i. GFO + RS232 j. GOF + Ethernet (RJ45) k. POF + Ethernet (OF) l. RS232 + Ethernet (RJ45) m. RS485 + Ethernet (RJ45)

In case of having two rear ports, the one mentioned in second place is in parallel with the front RS232 (they occupy the same port).

7. Analogue inputs:

The unit can have up to 9 analog inputs (through transformer).– Preferential option.

Inputs 1, 2 and 3 are used for phase currents measurement.

Input 4 is used for neutral current measurement.

Input 5 depends on model. There are the next possibilities:

a. No input

b. Sensitive neutral or isolated neutral current

measurement

c. Zero sequence voltage measurement V

Inputs 6, 7 and 8 are used for the phase voltages measurement.

Input 9 depends on model. There are the next possibilities:

a. No input

b. Zero sequence voltage measurement V

Syncrocheck function

for the

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

1.6. Environmental conditions

1. Operating temperature: -10 up to 55 °C

2. Storage temperature: -40 up to 85 °C

3. Relative humidity: Up to 95 % without condensation

1.7. Tests

1.7.1. Electrical tests

1. Measurement of dielectric rigidity: Acc. to/IEC 255-5, series C (2 kV, 1 min)

2. Measurement of insulation resistance: Acc. to/IEC255-5, >10GΩ at 500 V

3. Pulse (shock wave): Acc. to/IEC 255-5, appendix E, classIII

4. HF disturbances: Acc. to/IEC 255-22-1, class III

5. Fast transients: Acc. to/IEC 61000-4-4, class IV

6. Immunity to electrostatic discharges: Acc. to/IEC61000-4-2,

class IV

7. Voltage pulses: Acc. to/IEC 61000-4-5, class IV

8. Micro-cuts: Acc. to/IEC 60255-11, 100ms a 125V

9. Radiated electromagnetic interference:

Acc. to/EN 61000-6-4

10. Immunity to radiated elds: Acc. to/IEC 61000-4-3, class III

11. Immunity to conducted: Acc. to/IEC 61000-4-6, class III radiofrequency signals

12. Immunity to low frequency: Acc. to/IEC 61000-4-8 radiated elds

1.7.2. Environmental tests

1. Cold: Acc. to/IEC 68-2-1 (-40 °C)

2. Dry heat: Acc. to/IEC 68-2-2 (+85 °C)

3. Humid heat: Acc. to/IEC 68-2-3 (+70 °C, 93 % relative

4. Change of temperature: Acc. to/IEC 68-2-14 (-20°/70°C

two 4-hour cycles)

5. Operating range: -10 °C. up to 55 °C

humidity)

1.7.3. Mechanical tests

1. Vibration test: Acc. to/IEC 255-21-1 class II 2. Shock and bump test: Acc. to/IEC 255-21-1 class I

1.8. CE Conformity

This product complies with the European Union directive 2014/30/EU on electromagnetic compatibility, and with the IEC 60255 international regulations. The unit has been designed and manufactured for use in industrial areas,

in accordance with EMC standards. This conformity is a result of the test carried out in accordance with article 7 of the Directive.

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

1.9. Wiring diagrams

General description

All the following wiring diagrams show one of the possible digital input and output programming (very simple). See all the possibilities in “programming of digital inputs” and “programming of digital outputs” sections.

A B C

T6 (VA)

Free

T7 (VB)

T8 (VC)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

1 2

3 4

5 6

7 8

13 14

CBA

52 state

Close command

Open command

Synchronization

In the outputs with change-over contact the common point is the middle one.

Phase sequence order is settable by keyboard/display (See “other settings”-“protection denition”).

Power Supply Vdc

XFA

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

DC/DC

OPT IONA L

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Ground trip

Free

HW status

RJ45

Tx+

Tx -

Rx+

Rx-

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

Figure 1.2. nb and cr models

Port COM1

Rx 2

RS232

Tx 3

0V 5

Front

IG-150-EN version 04; 03/10/16

Port COM1 or Ethernet

Rear

OPTIONAL

Port COM2

Rear

Glass O.F. Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

GND

General description General instructions

ekor.rps

A B C

Free

13 14

3 4

7 8

1 2

3 4

5 6

7 8

13 14

CBA

OPTIONAL

52 state

Close command

Open command

Synchronization

T6 (VA)

T7 (VB)

T8 (VC)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (INS)

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Power Supply Vdc

XFA

DC/DC

OPT IONA L

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Ground trip

Free

HW status

RJ45

Tx+

Tx -

Rx+

Rx-

Figure 1.3. nc model

Rx 2

Tx 3

0V 5

Port COM1 RS232 Front

Port COM1 or Ethernet

Rear

OPTIONAL

Port COM2

Rear

IG-150-EN version 04; 03/10/16

Glass O.F. Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

GND

General instructions ekor.rps

A B C

General description

Power Supply Vdc

XFA

CBA

15 16

OPTIONAL

52 state

Close command

Open command

Free

Synchronization

T6 (TA)

T7 (TB)

T8 (TC)

T9 (SYN)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (INS)

1 2

3 4

5 6

7 8

13 14

15 16

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

DC/DC

OPTI ONAL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Ground trip

Free

HW status

RJ45

Tx+

Tx -

Rx+

Rx-

Port COM1

Rx 2

Tx 3

RS232

0V 5

Front

Figure 1.4. nd, ne, dd, de and df modelos (with V0 calculated, cod. ** **1*****01)

Although it is not represented, the Ethernet connection is also available in other diagrams. “port 1” is COM 1 and “port 2” is COM 2.

IG-150-EN version 04; 03/10/16

Port COM1 or Ethernet

Rear

OPTIONAL

Port COM2

Rear

Glass O.F. Plastic O.F.

Rx 2

Tx 3

RS232

DTR 4

0V 5

RTS 7

RS485

GND

General description General instructions

ekor.rps

Power supply Vdc

T6 (TA)

T7 (TB)

T8 (TC)

XFA

DC/DC

CBA

13 14

15 16

Optional

OPTIONAL

52 state

Close command

Open command

Free

Synchronization

T9 (SYN)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (INS)

T5 (V0)

1 2

3 4

5 6

7 8

13 14

15 16

Rx 2

Tx 3

0V 5

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port COM1 RS232 Front

Port COM1

Rear

OPTIONAL

Port COM2

Rear

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

X1 17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Neutral trip

Free

HW state

Glass O.F. Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

GND

Figure 1.5. nd, ne, dd, de and df models (with Ir calculated, , cod. ** **1*****02)

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

CBA

Trip direction

Optional

General description

Power supply Vdc

XFA

T6 (TA)

T7 (TB)

T8 (TC)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (V0)

DC/DC

OP TI ON AL

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

25 26

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

Figure 1.6. db model (cod. DB **1*****00)

52 status

Close order

Open order

Not conﬁgured

Synchronization

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port 1A

Rx 2

RS232

Tx 3

0V 5

Front

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

Port 1B

Rear

OPTIONAL

Port 2

Rear

Glass O.F. Plastic O.F.

Rx 2

Tx 3

DTR 4

RS232

0V 5

RTS 7

RS485

GND

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

A B C

CBA

13 14

15 16

17 18

OPTIONAL

3 4

5 6

7 8

52 status

Close command

Open command

Not conﬁgured

Synchronization

3 4

5 6

7 8

13 14

Rx 2

Tx 3

0V 5

Power supply Vdc

XFA

T6 (VA)

DC/DC

T7 (VB)

T8 (VC)

T9 (I0) polarization

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (V0)

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port 1A RS232 Front

Port 1B

Rear

OPTIONAL

Port 2

Rear

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

GND

Glass O.F. Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

Figure 1.7. db model with polarization by 67N current (cod. DB **1*****10)

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

A B C

CBA

OPTIONAL

General description

Power supply Vdc

XFA

T6 (VA)

T7 (VB)

T8 (VC)

T9 (V0)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (INS)

DC/DC

OP TI ON AL

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

Figure 1.8. dc Model (cod. DC **1*****00)

52 status

Close command

Open command

Not conﬁgured

Synchronization

ED9

ED1

ED2

ED3

ED4

13 14

15 16

ED5

ED6

ED7

ED8

IRIG-B

Port 1A

Rx 2

Tx 3

RS232

0V 5

Front

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

Port 1B

Rear

OPTIONAL

Port 2

Rear

19 20

21 22

23 24

25 26

27 28

31 32

Glass O.F. Plastic O.F.

Rx 2

Tx 3

RS232

DTR 4

0V 5

RTS 7

RS485

GND

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

A B C

CBA

52 status

Close command

Open command

Not conﬁgured

Synchronization

13 14

15 16

17 18

3 4

5 6

7 8

1 2

3 4

5 6

7 8

13 14

Rx 2

Tx 3

0V 5

Power supply Vdc

XFA

T6 (VA)

DC/DC

T7 (VB)

T8 (VC)

T9 (I0) polarization

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (INS)

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port 1A RS232 Front

Port 1B

Rear

OPTIONAL

Port 2

Rear

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

Glass O.F. Plastic O.F.

Rx 2

Tx 3

RS232

DTR 4

0V 5

RTS 7

RS485

GND

Figure 1.9. dc model with polarization with 67N current (V0 calculated, cod. DC **1*****11)

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

A B C

General description

Power supply Vdc

XFA

T6 (VA)

T7 (VB)

CBA

T8 (VC)

17 18

T9 (I0) polarization

OP TI ON AL

T1 (IA)

T2 (IB)

T3 (IC)

T4 (INS)

T5 (V0)

52 status

Close command

Open command

Not conﬁgured

Synchronization

1 2

3 4

5 6

7 8

13 14

15 16

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port 1A

Rx 2

RS232

Tx 3

0V 5

Front

DC/DC

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

Port 1B

Rear

OPTIONAL

Port 2

Rear

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

GND

Glass O.F. Plastic O.F.

Rx 2

Tx 3

RS232

DTR 4

0V 5

RTS 7

RS485

Figure 1.10. dc model with polarization with 67N current (Ir calculated, cod. DC **1*****12)

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

A B C

CBA

52 status

Close command

Open command

Not conﬁgured

Synchronization

13 14

15 16

17 18

3 4

5 6

7 8

1 2

3 4

5 6

7 8

13 14

Rx 2

Tx 3

0V 5

Power supply Vdc

XFA

T6 (VA)

T7 (VB)

T8 (VC)

T9 (VSYNC)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (INS)

T5 (I0) (polarization)

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port COM1 RS232 Front

DC/DC

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

Port COM1

Rear

OPTIONAL

Port COM2

Rear

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

General trip

2 3

4 5

Phase trip

6 7

Neutral trip

Not conﬁgured

11 12

HW status

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

Glass O.F. Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

GND

Figure 1.11. dd, de and df models with polarization by 67N current (Ir and V0 calculated, cod. ** **1*****13)

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

A B C

CBA

OPTIONAL

Close command

Open command

Synchronization

52 status

Not conﬁgured

General description

Power supply Vdc

XFA

T6 (VA)

T7 (VB)

T8 (VC)

OP TI ON AL

T9 (VSYNC)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (V0)

ED1

ED2

ED3

ED4

Rx 2

Tx 3

0V 5

ED5

ED6

ED7

ED8

IRIG-B

Port COM1 RS232 Front

13 14

15 16

DC/DC

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

Port COM1

Rear

OPTIONAL

Port COM2

Rear

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

Glass O.F.

Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

GND

Figure 1.12. ib, ic models (cod. I* **1*****00)

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

A B C

CBA

52 status

Close command

B C

Open command

Not conﬁgured

Synchronization

13 14

15 16

3 4

5 6

7 8

1 2

3 4

5 6

7 8

13 14

Rx 2

Tx 3

0V 5

Power supply Vdc

XFA

T6 (VA)

T7 (VB)

T8 (VC)

T9 (VSYNC)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (I0)

(polarization)

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port COM1 RS232 Front

DC/DC

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

Port COM1

Rear

OPTIONAL

Port COM2

Rear

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

GND

Rx 2

Tx 3 DTR 4

0V 5

RTS 7

Glass O.F. Plastic O.F.

RS232

1 2

RS485

3 4 5

Figure 1.13. ib, ic models with polarization by 67N current (V0 calculated, cod. I* **1*****11)

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

A B C

General description

Power supply Vdc

XFA

T6 (VA)

T7 (VB)

CBA

T8 (VC)

T9 (VSYNC)

OP TI ON AL

T1 (IA)

T2 (IB)

T3 (IC)

T4 (V0)

T5 (I0) (polarization)

52 status

Close command

Open command

Not conﬁgured

Synchronization

1 2

3 4

5 6

7 8

13 14

15 16

Rx 2

Tx 3

0V 5

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port COM1 RS232 Front

DC/DC

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

Port COM1

Rear

OPTIONAL

Port COM2

Rear

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

General trip

2 3

4 5

Phase trip

6 7

Neutral trip

Not conﬁgured

11 12

HW status

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

Glass O.F.

Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

GND

Figure 1.14. ib, ic models with polarization by 67N current (Ir calculated, cod. I* **1*****12)

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

Special Models

Some special models only have its functionality as special. For example, the wiring diagram of E1 type models is the same as that of NC family.

A B C

13 14

15 16

3 4

5 6

7 8

1 2

3 4

5 6

7 8

13 14

CBA

OP TI ON AL

52 status

Close command

Open command

Not conﬁgured

Synchronization

T6 (VA)

T7 (VB)

T8 (VC)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (INS)

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Power supply Vdc

XFA

DC/DC

OP TI ON AL

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

17 18

19 20

21 22

23 24

25 26

27 28

31 32

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

Figure 1.15. EH3030/EH8030 model (special type E1)

Port 1A

Rx 2

RS232

Tx 3

0V 5

Front

Port 1B

Rear

OPTIONAL

Port 2

Rear

Glass O.F.

IG-150-EN version 04; 03/10/16

Glass O.F.

Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

GND

General instructions ekor.rps

Sometimes, the units can be used with wiring dierent to those indicated. Examples:

General description

Power supply Vdc

CBA

15 16

3 4

5 6

7 8

9 10

XFA

T6 (VA)

T7 (VB)

T8 (VC)

T9 (V0)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (INS)

DC/DC

OP TI ON AL

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

SD14

2 3

4 5

6 7

11 12 13

15 16

17 18

19 20

24 25 26

General trip

Phase trip

Neutral trip

Not conﬁgured

HW status

Figure 1.16. EH3018 model (special type E2)

52 status

Close command

Open command

Not conﬁgured

Synchronization

1 2

3 4

5 6

7 8

13 14

15 16

Rx 2

Tx 3

0V 5

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port COM1 RS232 Front

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

Port COM2

Rear

Port COM1

Rear

OPTIONAL

X1 17 18

19 20

21 22

23 24

25 26

27 28

31 32

Glass O.F. Plastic O.F.

Rx 2

Tx 3 DTR 4

RS232

0V 5

RTS 7

RS485

GND

IG-150-EN version 04; 03/10/16

General description General instructions

ekor.rps

Power supply Vdc

Trip

direction

CBA

13 14

15 16

17 18

3 4

5 6

7 8

9 10

XFA

DC/DC

SD1

SD2

SD3

SD4

SD5

SD6

SD7

General trip

2 3

4 5

Phase trip

6 7

Neutral trip

Instantaneous trip

Unbalance trip

11 12

HW status

Figure 1.17. EH8007 model (special type E3)

52 status

Trip coil 52 close supervision

Trip coil 52 open supervision

Close coil 52 close supervision

Close coil 52 open supervision

Not conﬁgured

Synchronization

1 2

3 4

5 6

7 8

13 14

15 16

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

Port 2

Port 1

Rx 2

RS232

Tx 3

0V 5

Front

TTL level

Internal communication with TCP’s CPU

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

A B C

Power supply Vdc

General description

XFA

CBA

OP TI ON AL

13 14

15 16

OP TI ON AL

52 status

Close command

Open command

Not conﬁgured

Synchronization

13 14

15 16

T6 (TA)

T7 (TB)

T8 (TC)

T9 (SYN)

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (INS)

1 2

3 4

5 6

7 8

ED1

ED2

ED3

ED4

ED5

ED6

ED7

ED8

IRIG-B

DC/DC

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

SD9

SD10

SD11

SD12

SD13

OP TI ON 2

ED9

ED10

ED11

ED12

ED13

SA1

SA2

General trip

2 3

4 5

Phase trip

6 7

Neutral trip

Sensitive neutral trip

Not conﬁgured

11 12

HW status

15 16

17 18

21 22 23

24 25 26

17 18

19 20

21 22

23 24

25 26

28 29

30 31

Figure 1.18. EH3211 model (special type E4)

Port COM1

Rx 2

Tx 3

RS232

0V 5

Front

IG-150-EN version 04; 03/10/16

Port COM2

Rear

Glass O.F.

General description General instructions

ekor.rps

The terminal numbers indicated in the previous wiring diagrams is for units with pin type terminals. If the units have closed type terminals, the only dierence lies on those terminals corresponding to T6 and T9 transformers, because VA, VB and VC measurement transformers, have a common point (that is, compound voltages cannot be connected with closed type terminals, but only single voltages can..

Connections of the analogue inputs in models with closed type terminals:

2 3

4 5

T1 (IA)

T2 (IB)

T3 (IC)

T4 (IN)

T5 (V or I ac. to model)

T6 (TA)

T7 (TB)

T8 (TC)

T9 (V or I ac. to model)

Figure 1.19. Connections of the analogue inputs

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

Connection of the extension cards (optional)

General description

1 N

O I

T P

SD8

SD9

SD10

SD11

SD12

SD13

SD14

15 16

17 18

19 20

24 25 26

2 N

O I

T P

SD8

SD9

SD10

SD11

SD12

SD13

15 16

17 18

21 22 23

24 25 26

ED9

ED10

ED11

ED12

ED13

ED14

ED15

ED16

ED17

17 18

19 20

21 22

23 24

25 26

27 28

31 32

ED9

ED10

ED11

ED12

ED13

SA1

SA2

17 18

19 20

21 22

23 24

25 26

28 29

30 31

Figure 1.20. 9 digital inputs (DI) + 7 digital outputs (DO)

Figure 1.21. 5 DI + 6 DO + 2 analog outputs (AO)

IG-150-EN version 04; 03/10/16

General description General instructions

(opt ional

(opt io

ekor.rps

LCD

RS23 2

Port 1 - 1

Port 1 - 2

(opt ional)

FOC/ RS232

FOC/ RS485

Disp lay

(RS2 32)

Keyb oard

RAM

8 MB

(din amic)

RAM

2 MB

(sta tics)

2 MB

FLAS H

Cloc k

LEDs

Rela ys

Digi tal

Push –butt.

outp uts

Addr ess/dat a bus

PLD

inpu t

IRIG -B

inpu ts

Prog rammabl e

Lowp ass

Figure 1.22. Blocks diagramm

SPI

Comm unic.

DSP

Wave makers

ampl iﬁers

Filt ers

)

nal)

SYNC

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

2. Hardware

2.1. Constructive characteristics. Horizontal box (ekor.rps-h)

Figure 2.1. Unit’s external dimensions [mm]

Hardware

Figure 2.2. Panel cut-o in mm

IG-150-EN version 04; 03/10/16

Hardware General instructions

ekor.rps

2.2. Constructive characteristics (ekor.rps-tcp)

Figure 2.3. Unit’s external dimensions [mm]

Figure 2.4. Panel cut-o in mm

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

2.3. Rear terminals

Hardware

Figure 2.5. Standard (all for pin type terminals)

Figure 2.6. Option with closed type terminals for analog inputs

IG-150-EN version 04; 03/10/16

Hardware General instructions

ekor.rps

2.4. Options for rear communications ports

OF (glass or plastic) RS-485 RS-232

Figure 2.7. Single port

Figure 2.8. Double port

OF + OF RS-485+RS-232 RS-232+RS-232 OF+RS232 Ethernet OF + OF

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

Hardware

Figure 2.9. Ethernet

Ethernet RJ45+ OF Eth.RJ45+RS232 Eth.RJ45+RS485

IG-150-EN version 04; 03/10/16

Hardware General instructions

ekor.rps

2.5. RS485 connection detail between some units

Although there is an internal connection in the unit between 1 and 2 pin and between pin number 3 and 4, if a connection is done on the bus side, as it is shown in the

gure, a unit can be removed without causing a loss in the chain continuity.

Computer

Screen

Network end R 120 Ohms

DB9 Female type rear connector (in the unit)

Screened twisted pair

Last unit

ekor.rps unit

Rest of DB9 connector terminals without inner connection

Figure 2.10. RS485 connection

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

2.6. Connection between fiber optic and a radio modem

The contact of the ekor.rps protection is made by programming a digital output such as “RTS control”.

12 3

Hardware

ekor.rps

FO/RS232 converter

Radio

RTS (contact)

+12 Vdc (aprox)

Figure 2.11. Connection between ber optic

IG-150-EN version 04; 03/10/16

Hardware General instructions

∆

−

MEPCPP

ekor.rps

2.7. Ethernet communication

2.7.1. Ethernet via GOF

The optic channels characteristics are the following:

1. Baud rate: 100 Mb

2. Connector: ST

3. Optical transmitter: LED

4. Optical receiver: PIN photodiode

5. Optical output: Non-modulated

6. Wave length: Glass λ

7. Plastic λ

8. BER: δ10

=660mm

-9

=820mm

9. Glass optic ber multimode: 62.5/125μm

10. Temperature range values from –20°C to+85°C

11. Losses according to the type of ber

Maximum

losses

allowed

Glass

62.5/125μm

Table 2.2. Pérdidas según el tipo de bra

8db 4db 0.5db

Losses km

Connection

losses

2.7.2. Ethernet via RJ45 cable

12. The maximum transmission distance is calculated as follows:

where: PP = Losses in the link PC = Additional connection insertion losses ME = Aging margin should be 3 db Δ = Cable attenuations in db/Km

13. Maximum distance that can be reached:

In the worst

possible

conditions

Cristal 62,5/125μm

Table 2.3. Maximum distance that can be reached

1.25km 4km

In the best

possible

conditions

1. Interface per 600 ohms impedance transformer

2. Insulation 500 V

3. RJ45 connector (female)

4. Communication speed: 10/100 Mb

5. Cable type: Screened

6. Cable length: 100 m maximum

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

2.8. Technical characteristics

2.8.1. Power Supply

Hardware

1. Models with 24–48V

a. Operating range: 18up to60V

2. Models with 125–220V

a. Operating range: 86up to280V

2.8.2. Output Contacts

Relays 1 to 6 and 8 to 13:

1. Carry: + 5 A up to + 25 °C

2. Make (0.5 s): 30 A

3. Breaking capacity (resistive load)

a. for 220 Vdc: 0.4 A

: 1 A

: 3 A

b. for 125 V c. for 48 V

4. Breaking capacity (L/R = 40 ms)

a. for 220 Vdc: 0.2 A b. for 125 V c. for 48 V

: 0.5 A

: 0.3 A

2.8.3. Digital inputs (optoisolated)

3. Consumption: 8W minimum

18W maximum

Relays 7 to 14:

1. Carry: + 5 A up to + 25 °C

2. Make (0.5 s): 30 A

3. Breaking capacity ( resistive load)

a. for 220 Vdc: 0.15 A

: 0.4 A

: 2 A

b. for 125 V c. for 48 V

4. Breaking capacity (L/R = 40 ms)

a. for 125 Vdc: 0.25 A b. for 48 V

: 0.5 A

1. Extended range:

High: operating range 86 up to 280 Vdc (inactive below 60 Vdc)

Low: operating range 18 up to 160 V

Consumption: <3 mA

They are single-directionals. In the interconnection diagrams they are presented as follows:

Figure 2.12. Interconnection diagrams

And the corresponding polarity is:

Figure 2.13. Polarity

(inactive below 13 Vdc)

2. Restricted range:

24 Vdc: Operating range 18 up to 34 Vdc (inactive below 15 Vdc)

: Operating range 36 up to 60 Vdc (inactive below 26 Vdc)

48 V

: Operating range 85 up to 150 Vdc (inactive below 60 Vdc)

125 V

: Operating range 65 up to 264 Vdc (inactive below 110 Vdc)

220 V

Consumption: ≤3 mA

They are two-directionals (they do not have polarity)

IG-150-EN version 04; 03/10/16

Hardware General instructions

ekor.rps

2.8.4. IRIG-B input

Demodulated input, TTL level Type of cable: 2 shielded twisted wires

Isolation: 500V Connections:

IRIG-B generator

Screen

Twisted and shielded pair

ekor.rps unit

Figure 2.14. IRIG-B input

The input circuit is a 390 Ω serial resistance with an optoacoplator; for a 5 V signal, the approximate consumption is 10 mA.

The number of units that can be connected in parallel to a generator depends on its capacity of supplying output current; a typical value could be 70 mA, so 6 units could be connected, (although the length and the type of wire can also inuence). The wire must be shielded and twisted.

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

2.8.5. Analog outputs

Hardware

1. Range: 0 to 5 mA

2. Accuracy: ± 1 % full scale

3. Maximum charge: 1200 Ω

4. Insulation: 1 kV

2.8.6. Phase and neutral current circuits (standard rating 1 A)

1. Phases full scale: 40 A

2. Neutral full scale: 20 A

3. Thermal capacity:

a. Continuous: 20 A b. Short duration: 500 A (1 s)

4. Consumption Ir=1A: <0.02VA

2.8.7. Sensitive neutral or isolated neutral current circuits (standard rating 0.025 A)

1. Full scale: 1 A

2. Thermal capacity:

a. Continuous: 3 A b. Short duration: 60 A (1 s)

3. Consumption a Ir=0.025A: <0.015VA

2.8.8. Phase and neutral current circuits (specified rating 1/5 A)

1. Thermal capacity:

a. Continuous: 20 A b. For 1 second: 500 A c. For ½ cycle: 1,250 A

2. Consumption Ir=5A: <0.2VA

3. Consumption I

=1A: 0.02VA

2.8.9. Sensitive neutral or isolated neutral current circuits (specified rating 0.25/0.025 A)

1. Thermal capacity

a. Continuous: 20 A b. For 1 second: 500A (1s)

2. Consumption Ir=0.025A: 0.015VA

2.8.10. Voltage circuits

1. Thermal capacity

a. Continuous: 2 U b. For 1 second: 5 U

For 1 minute: 3.5 U

c. Consumption for 63.5 V: 0.015 VA d. Consumption for 100 V: <0.03 VA

ekor.rps units preferably have standard rating current circuits. As an option and when conrmed by Ormazabal’s technical– commercial department, specied rating current circuits are available.

IG-150-EN version 04; 03/10/16

Hardware General instructions

ekor.rps

2.8.11. Measurements accuracy

1. Current

Measurement range: (0 a 1.2*Ir)

For I

 =1: Class 1 (1% of Ir)

=5: Class 0,5 (0,5%of Ir)

Protection Range: (0.1 to 200 A)

1 % of the real value for I> 1 A

3 % of the real value for I< 1 A

(In areas where the measurement range and the protection range overlap, the accuracy is the best one out of both of them).

2.9. Operating frequency

Rated: 50 or 60Hz (programmable)

Operating range: F

± 5Hz

2.10. Phase order

ABC or CBA (programmable).

2. Voltage

Accuracy: 0.5 % of the rated voltage Ur up to 1.2*V

3. Phase dierence angles

Accuracy: ± 1°

4. Active power

Measurement range: (0to1.2*Ir*1.2*Vr)

For I

= 1: Class 1 (1%ofPr)

=5: Class 0.5 (0.5%ofPr)

IG-150-EN version 04; 03/10/16

General instructions ekor.rps

3. Unit configuration

Unit configuration

The settings that are dened next congure the unit, for what they are basic.

Some are only accessible by keyboard/display; others they are also accessible by console.

All of them are of single table (table 0). By keyboard/display you access the programming of the table 0 through the menu “change settings” by means of the keys↑↑↓↓.

3.1. Programming of digital inputs and logic inputs

In the unit there are two dierent types of inputs: The digital inputs (physical, wired in the eld) or logical inputs (internal). Each function of possible input (for example “breaker state”) is only programmed as digital or logical, but never as both at the same time.

The programming of digital inputs is as follows:

By console, it is carried out on the screen “digital inputs conguration”, in the upper square of the two located on the right.

By keyboard/display: PROG. TABLE 0 - PROG.CONFIGUR – CONFIG. INPUTS

SELECT. N0/NC INPUTS ACTIV.T

Cong inputs allows programming a digital input among the following possibilities:

1. Breaker status.

2. Reference voltage (for the recloser).

3. External protection (79/50 BF). It causes reclosure

(depending on the enables) and activates the breaker failure function (three-phase).

4. Close command. It activates the closure relay.

5. Open command. Activates the general trip.

6. Instantaneous inhibition. If it is active, the overcurrent

instantaneous does not trip, but they count the time passed since their picking up. So, when de input is deactivated and the additional programmed time is elapsed, they trip instantaneously.

7. Set table 1. If a pulse is received, sets settings table 1 as the active table.

8. Set table 2. If a pulse is received, sets settings table 2 as the active table.

9. Set table 3. If a pulse is received, sets settings table 3 as the active table.

10. Set table 4. If a pulse is received, sets settings table 4 as the active table.

11. Set table 5. If a pulse is received, sets settings table 5 as the active table.

12. Set table 6. If a pulse is received, sets settings table 6 as the active table.

13. Set local command/remote.

14. Close circuit supervision 1 with 52 open.

15. Close circuit supervision 1 with 52 close.

16. Trip circuit supervision 1 with 52 open.

17. Trip circuit supervision 1 with 52 close.

18. Close circuit supervision 2 with 52 open.

19. Close circuit supervision 2 with 52 close.

20. Trip circuit supervision 2 with 52 open.

21. Trip circuit supervision 2 with 52 close.

22. Local reposition. It turns o the tripping LEDs and

23. df/dt breaker (level 1 to level 4). Option for 81 R function.

24. Teleprotection reception (for 85 function).

25. Guard signal loss (for 85 function).

26. Zone 3 address reverse (for 85 function).

27. 79/50BF. External protection A, B, C. They cause

28. Slack springs. For the corresponding automation.

29. Fuse failure. It activates the function with the same name.

30. Thermal image reposition. It resets the thermal image

31. 67 NS Isen (φ) or Icos (φ). It allows using any algorithm,

32. 67 NS Isen (φ) or Icos (φ). It allows using any algorithm,

33. Close locking, it locks all the close commands, recloser,

34. Relay locking; while it is active, it sets the relay out of

35. Recloser blocking. If it is active, the recloser is blocked

36. Not allocated. The input can be used by the protection

It should not be programmed more than an input with a certain function.

deactivates the relays programmed as “memorized”; it is equal to fault recognition for keyboard/display.

reclosure (depending on the enables) and they activate the respective breaker failure functions (single-phase).

temperature.

regardless the setting in the neutral directional.

regardless the setting in the sensitive neutral directional.

push-button, command, and digital input.

service.

and it does not allow its unblocking by communications.

for lockout or logical, or not be used, anyway its state can be transmitted to control.

IG-150-EN version 04; 03/10/16

Unit configuration General instructions

ekor.rps

Select. NO/NC. It denes if the input must be interpreted like active when it is viewed closed or when it is viewed open. If it is dened as NO, when the input is open the sign is 0 and when it is closed 1 (for logic inputs). If it is dened as NC, when the input is open the sign is 1 and when it is closed 0 (for logic inputs).

For example, for the status of the circuit breaker, if we use a contact 52 a we should program the corresponding input as NO (when it closes it indicates closed circuit breaker), while if we use a 52 b we should program it as NC (when it opens it indicates closed circuit breaker).

T.activ.inputs (time of activation of inputs). It is a software lter for the activation/deactivation of digital inputs. The HW lters is of 1 ms, and it can be extended by Software in the number of programmed milliseconds (range 0 to 20ms).

The programming of logical inputs is as follows:

By console, it is carried out on the screen “digital inputs conguration”, in the lower square of the two located on the right.

By keyboard/display: PROG. TABLE 0 - PROG.CONFIG – CONFIG. INPUTS – LOGICAL

INPUTS SELECT. N0/NC

A logical input is a virtual (not physical), the state of which depends on the state of the corresponding logical input (input 1 corresponds to signal 1, input 15 to signal 15). Its function is the one that has been programmed (the programming possibilities are the same as for the digital inputs).

This procedure allows the assignation of the relay internal signals to those inputs as if they were wired eld signals. Up to 15 logical inputs are permitted (there are only 15 logical signals).

NO/NC selection, input active when the logic is active or inactive.

Delay is not applied to the activation.

Example: If programming logical input 3 as “breaker status” and NO, the unit will consider that the breaker will be closed when logical input 3 is active.

A certain function must be only programmed as one input. It is not possible, for example, programming “breaker

state” as digital input and as logical input.

3.2. Programming of digital outputs

By console it is carried out in the screen “Digital outputs conguration”

By keyboard/display: PROG. TABLE 0 - PROG.CONFIG – PROG. OUTPUTS

OUTPUT ACTIV. T

The functionality of each digital output can be programmed like an OR of the logical signals available in this unit (see point “List of available signals”, Appendix III).

In the programming through console (recommended), for each digital output it is clicked with the mouse in the cells corresponding to the signs whose OR wants to be activated by the output (dot-matrix programming).

In the programming screen, at the beginning of the list of available signals, a line appears with the title “OUTPUT TYPE” which denes for each digital output if it is of the type “trip”, “close” “memorized” or “nothing”. If it is of the type “trip” the output carries out the sealing logic (if the sealing setting is set to YES) and that of opening failure. If it is of the type “close” the output carries out the sealing logic (if the sealing setting is set to YES) and that of close failure. If the type is “memorized”, once activated it is deactivated digital input actuation programmed as “local reposition” command or

keyboard/display (“recognize fault”). If the type is “nothing” it does not do anything special.

The time of activation of outputs denes the minimum time of operation of each physical output once it has been activated (in seconds). The range is 0.05 to 5 s. It appears in the last line of the screen.

By keyboard/display is more complicated. In PROG.SALIDAS, we nd for each one of them with “ASIGN SIGNALS”, with the following possibilities.

No signal (the output remains without assigning, but it can be activated by control commands).

Same signals (it is not wished to change the current programming).

Other signals (it is wished to change the current programming). When pushing“↵”(Intro), it is gone through the logical signals with the arrow↓; when we arrive to a signal that we want to use in the OR that denes the output we press “R”; when we nish with the signals, we pulse “↵”, which takes us to the programming of the output type, with the possibilities already indicated.

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General instructions

POWER SCALE =

“POWER BACKGROUND”

ekor.rps

3.3. Programming of LEDs

Unit configuration

Through console, it is carried out in the screen “LEDs programming”.

By keyboard/display: PROG. TABLE 0 - PROG.CONFIG–PROG. LEDs.

3.4. Programming of general settings

3.4.1. General description

Relay in service: it has to be at Yes in order to have the protection fully operative. If it is at NO the protection responds to the communications and the keyboard/ display in order to be put in service; besides it activates the relay and/or LED programmed as “relay out of service”, by deactivating all the rest.

Breaker number: it is an identifying text. It can be programmed as alphanumerical by communications, but by keyboard only as numerical.

Event mask: in the “events report” section a list is given with the ones related to the protection. Most of them can be masked, from the PC. They can not be masked from the keyboard.

To register an event type the mask has to be set to “NO”.

Transformation ratios: used by the protection only to give measurements referred to the primary.

Nominal voltage: it is the nominal single-phase voltage. It is used by the protection to give measurements in PROCOME format (the scale range of the voltage measurements is 1.2 times the nominal voltage).

Type of voltage: it indicates if the voltage signals connected to the unit are “simple” (phase-earth) or “compound” (phasephase). In the case of units with closed terminals only the single ones can be applied.

Voltage measurement: it indicates over which voltages the voltage protections must be applied.

These settings are located in the console on the screen “general settings and remote port conguration”, and in the keyboard/display on “PROG.TABLE 0”–“GENERALS” (through keyboard, the settings of voltage type and measurement are both under the title “voltage input”).

The proceedings are totally analogous to the programming of digital outputs, except that the activation time is not programmed and that the possible types are “memorized” and “non memorized”. The non memorized turns o when the cause for turning on disappears; to turn o the memorized a “fault acknowledgement” must be done either by keyboard/display, digital input or command.

On the same console screen, and by keyboard/display on FACTOR CORRECTION (at the same level as PROG.CHART 0) can be found the following settings:

“Constant active energy (kWh)”: the number programmed here is the impulse factor of active energy; this means the kWh number for which the counter is increased in one unit.

“Constant reactive energy (kWARh)”: the number programmed here is the impulse factor of reactive energy; this means the kVARh number for which the counter is increased in one unit.

“Power correction factor”: is a correction factor of the scale range for measurements of active and reactive power given to control (it does not aect to data given by display). It is, in per unit values, the scale range in which measurements are given related to the corresponding power to 1.2 I

and 1.2 Vr. It means that if the range required is “POWER BACKGROUND”, the power correction factor is:

3 * 1.2 Ir * 1.2 V

Example 1. Ir=5A, Vr=63.5V (110/√3V)

If it is required that the power full scale should be the power corresponding to 6 A (1.2 * 5 V) and 76.2 V (1.2 * 63.5)

Power full scale = 3 * 6 * 76.2

Power scale =1

Example 2.I

It is required a power full scale of 1000 W

Power full scale = 1,000

Power scale = 1,000/(3 * 1.2 *5 *1.2 * 63.5) = 0.729

=5 A, Vr=63.5V (110/√3V)

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The following setting is only available via the keypad/ display in IRIG-B format (at the same level as PROG.TABLE 0):

“IRIG-B format”: determines if the year in the IRIG synchronization is taken into account or not. The options are: “B002” (which does note take the year into account) and “B002 IEEE 1344” (which takes the year into account).

“Analog output”: the equipment has two analog outputs, which provide one output in milliamperes proportional to the measured value; they can be programmed (only with a console) as follows:

1. I

2. V

, secondary current maximeter. Full scale 6 A.

maximum

, Vb, Vac, U average compound U, secondary compound

voltages. Full scale √3*Vr*1.2.

3. I

, Ia, Ib, Ic, I

, secondary currents. Full scale 6 A.

average

4. [P (active power)], secondary absolute value P. Full scale

3.4.2. Setting ranges (table 0, single)

Setting Min Max Step Notes

Relay in service Breaker number Events mask Phase curr. turn. ratio Neutral cur. turn. ratio Sens. N. cur. turn ratio Voltage turn. ratio Simple rated voltage [V] Type of voltage Measurement of voltage IRIG-B format Analog output 1 Analog output 2 Active energy [kWh] Reactive energy [kVARh] Power correction factor

Table 3.4. Setting ranges

1 3,000 1 1 3,000 1 1 3,000 1 1 9,999 1

40.0 200.0 0.1

1 9,999 1 1 9,999 1

0.010 2,000 0.001

3*V

*1.2*6.

5. [Q (reactive power)], secondary absolute value Q. Full scale 3*V

*1.2*6.

6. [S (apparent power)], secondary absolute value S. Full scale 3*V

*1.2*6.

7. [Cos A], phase A power factor absolute value. Full scale 1.

8. [Cos B], phase B power factor absolute value. Full scale 1.

9. [Cos C], phase C power factor absolute value. Full scale 1.

10. [Average cos], average power factor absolute value. Full

scale1.

11. Fault distance, given in the feeder’s total length percentage.

The operation of the analog output used for the fault distance is explained in the “presentation of results” section in the “fault locator” chapter.

YES/NO 5 alphanumeric char. See “Events”

Simple/compound Phases in which it is measured B002 (without year)/B002 IEEE 1344 (with year) See “Analog output” See “Analog output”

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3.5. Communication configuration

3.5.1. Communication via front door (Port 1_1) and rear port Nr. 2 (Port 1_2) (COM 1)

Unit configuration

The ekor.rps unit has an address identifying number, which makes possible to identify the messages sent to the unit, from the PC, via its front port (or via its rear port in parallel), with protocol PROCOME. This address is programmable from the keyboard/display, entering “CHANGE SETTINGS”, “PROG. TABLE 0”, “CONFIG.COMMUNIC.”, “FRONT PORT ”, “UCL ADDRESS”.

The units leave the factory with the address 1. This number is the one used in the engineering program when dening the installation.

If, for any reason, this number is changed in engineering, the address programming has to be changed, and vice versa.

3.5.2. Communication via rear port Nr. 1 (Port 2) (COM 2)

The protocol type to be used by this port is dened in “CHANGE SETTINGS”, “PROG. TABLE 0”, “CONFIG. COMMUNIC "SELEC. COMMU. COM 2". The options are: PROCOME, DNP, MODBUS, IEC 870-5-101 or IEC 870-5-103.

PROCOME

If the option chosen is PROCOME, in “CHANGE SETTINGS”, “PROG. TABLE 0”, “CONFIG. COMMUNIC.”, “PORT COM2”, a setting group is programmed which is analogous to the one dening the front port (it is not necessary that they have the same values), but there also exists the setting “CONTROL SIGNALS”, with the options “none” and “RTS.

If the ekor.rps unit is replaced by another one, the installed unit must have the same address as the removed one.

They are also programmable in the unit within the “CONFIG. COMUNICAC.”: The baud rate, the parity and the number of stop bits. The units leave the factory at 19 200 baud, even parity, 1 bit of Stop.

The established communications settings can be seen on display, entering “SEE SETINGS”, “SEE TABLE 0”, “CONFIG. COMMUNIC.», “PORT COM 1”

115 200 baud rate or higher, they are only used for Firmware teleload, and not to be used in normal operation.

If a replacement of the ekor.rps unit by other is made, the installed unit must have the same address as the one removed.

The unit also has an identication number of the Master unit to which is connected, and which only accepts messages coming from there. It is also programmable in the unit within the “CONFIG. DNP”. The units leave the factory with the address 0. The baud rate, the parity and the number of STOP bits are also programmable. The units leave the factory at 9600 baud, without parity, 1 STOP bit.

The established communication settings can be seen on the display, entering “SEE SETTINGS”, “SEE TABLE 0”, CONFIG. COMMUNICAT.”, “PORT COM 2”, “CONFIG. DNP”.

DNP

If the option chosen is DNP, the address is programmable from the keyboard/display, entering “CHANGE SETTINGS”, “PROG. TABLE 0”, “PORT COM 2”, “CONFIG. DNP”, “LCU ADDRESS”. This address does not need to be the same as the one of the front port, but it is convenient to avoid confusions. The units leave the factory with the address and the rest of DNP parameters without being programmed. They have to be programmed by the user.

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Apart from the keyboard/display, the settings can also be displayed/programmed from the PC with the protection console.

For more detail on communication DNP, see the corresponding appendix.

Unit configuration General instructions

ekor.rps

MODBUS

If the chosen option is MODBUS, the address is programmable from the keyboard/display, entering “CHANGE SETTINGS”, “PROG. TABLE 0”, “CONFIG. COMMUNICAC.”, “PORT COM 2”, "CONFIG. MODBUS", “UCL ADDRESS". This address does not need to be the same as the one of the front port, but it is convenient to avoid confusions. The units leave the factory with the address and the rest of the MODBUS parameters without been programmed. They have to be programmed by the user.

If the ekor.rps unit is replaced by another one, the installed unit must have the same address as the one removed.

They are also programmable the baud rate, the parity and the auxiliary timers for activation and deactivation of the RT signal (internal).

The established communication settings can be seen on display, entering “SEE SETTINGS”, “SEE TABLE 0”, “CONFIG. COMMUNICAT.”, “PORT COM 2”, "CONFIGUR. MODBUS".

Apart from the keyboard/display, the settings can also be displayed/programmed from the PC with the protection console.

For more detail on MODBUS, see the corresponding appendix.

If the ekor.rps unit is replaced by another one, the installed unit must have the same address as the one removed.

They are also programmable the baud rate, the parity and the auxiliary timers for activation and deactivation of the RT signal (internal).

The established communication settings can be seen on display, entering “SEE SETTINGS”, “SEE TABLE 0”, “CONFIG. COMMUNICAT.”, “PORT COM 2”, "GENERAL"

Apart from the keyboard/display, the settings can also be displayed/programmed from the PC.

For more detail on 101 communication, see the corresponding appendix.

This protocol can not be used with RS485 port.

IEC 870-5-103

[2]

If the chosen option is 103, the address is programmable from the keyboard/display, entering “CHANGE SETTINGS”, “PROG. TABLE 0”, “CONFIG. COMMUNICAT.”, “PORT COM 2”, “LCU ADDRESS”. This address does not need to be the same as the one of the front port, but it is convenient to avoid confusions. The units leave the factory with the address and the rest of the 103 parameters without been programmed. They have to be programmed by the user.

IEC 870-5-101

If the chosen option is 101, the address is programmable from the keyboard/display, entering “CHANGE SETTINGS”, “PROG. TABLE 0”, “CONFIG. COMMUNICAT.”, “PORT COM 2”, "GENERAL”, “LINK ADDRESS” and “APPLICAT ADDRESS”. This address does not need to be the same as the one of the front port, but it is convenient to avoid confusions. The units leave the factory with the address and the rest of the 101 parameters without been programmed. They have to be programmed by the user.

If the ekor.rps unit is replaced by another one, the installed unit must have the same address as the one removed.

They are also programmable the baud rate, the parity and the auxiliary timers for activation and deactivation of the RT signal (internal).

The established communication settings can be seen on display, entering “SEE SETTINGS”, “SEE TABLE 0”, “CONFIG. COMMUNICAT.”, “PORT COM 2”.

Apart from the keyboard/display, the settings can also be displayed/programmed from the PC.

[2]

For more detail on 103 communication, see the corresponding

Volume 2 of 2.

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General instructions ekor.rps

3.5.3. Ethernet communication

Unit configuration

It is only used in models with an Ethernet port.

To congure the Ethernet port, the rst parameter to be congured is the one corresponding to the TCP/IP communication selection. It is congured from the keypad/display, in “CHANGE SETTINGS”, “PROG.TABLE 0”, “COMMUNICATIONS”, “SELECT COM TCP/IP”. The parameter options are: PROCOME, com. Horizontal and No. The operation is as follows:

1. PROCOME: The Ethernet port communicates with the PROCOME protocol. In this case, the PROCOME protocol cannot be selected from the other rear port (“COM 2”). In summary, the Ethernet port communicates with the PROCOME protocole, whereas the second rear port (if available) communicates with the protocol selected, except with PROCOME.

2. Horizontal communication: The Ethernet port allows communication between several protection relays, according to their conguration. Each relay can communicate with another two relays by sending 8 dierent programmable signals to each one of them. These programmable signals can be selected out of any equipment’s signals and receive 8 signals from each of the relays used for the communication programming. The relay takes the signals as its own. These signals are “signal i relay 1 or 2” where i goes from 1 to 8. The necessary parameters to congure the horizontal communication are the following (they can only be accessed with a console, in the “Communication between relays” screen, within “General”):

a. Protection IP address. Indicates the protection IP address

(server equipment). It is 32 bits, in decimal numbers separated by dots.

b. Relay 1 IP address (identifier). Indicates the IP address of

protection 1 it wants to communicate with. It is 32 bits, in decimal numbers separated by dots. If the IP address is programmed as 0.0.0.0, there is no communication with relay 1.

c. Signals to transmit relay 1. They are the signals to be

sent to relay 1 (the one with the protection IP address programmed in the previous parameter).

d. Relay 2 IP address (identifier). Indicates the IP address of

protection 2 it wants to communicate with. It is 32 bits, in decimal numbers separated by dots. If the IP address is programmed as 0.0.0.0, there is no communication with relay 2.

e. Signals to transmit relay 2. They are the signals to be

sent to relay 2 (the one with the protection IP address programmed in the previous parameter).

The operation is as follows: Each relay communicates with the other two, sending the status of the programmed signals every 10 ms; if a change in the programmed signals is detected, it sends the status every 10 ms. If during 40 ms; no communication is received from relay 1 or 2 an error signal is generated with the corresponding relay.

The signals received from relay 1 and relay 2 arrive at the control signals “Signal i relay 1” and “Signal i relay 2”, where i goes from 1 to 8. These signals can be treated as the equipment’s own signals, which means that logics can be made with them, they can be sent to the outputs, etc.

3. NO. It does not communicate with the Ethernet port. In this case, the second rear port (if available) communicates with the selected protocol, allowing PROCOME.

The other Ethernet port conguration parameters are congured with the Sipcon console, in the “TCP/IP conguration” menu. These parameters are:

General

Protection IP address. Indicates the protection IP address (server equipment). It is 32 bits, in decimal numbers separated by dots.

Subnetwork Mask. Determines the part of the IP address which identies the network. It is 32 bits, in decimal numbers separated by dots. Any IP addresses not meeting the subnetwork mask, this is with a subnetwork mask part dierent than “1”, are not considered part of the network and are not handled. For instance, the mask 255 255 255 000 allows 256 server addresses sharing the rst 3 address values.

Gateway. Indicates the IP address of the servers, which are not part of the local network, where the messages are sent. It is the IP address of the equipment that performs the network router functions.

Nr. connections. Set to 1.

PROCOME

Master IP address. Indicates the PC address (client equipment).

Port. Indicates the port the master equipment connects to.

UCL address. It is the protection address to which the

protocol responds.

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3.6. Other configuration settings

Only accessible by keyboard/display, on “CHANGE SETTINGS”, “PROG. TABLE 0”, “DEFINE PROTECT.”. They are the following:

3.6.1. Frequency

It can be 50 Hz or 60 Hz. It is a fundamental protection setting. If it is not the correct one, the measurements and, therefore, the protection operation will be wrong.

3.6.2. Language

It can be English or Spanish. It relates to the texts shown ondisplay.

3.6.3. Phase order

It can be A, B, C or C, B, A. It aects only to the protection functions of broken conductor and unbalance (currents and voltages). To verify that the order corresponds to the wiring,

3.6.4. Neutral Parameter

If it is “by transformer” indicates that an input transformer exists to measure the zero sequence voltage; if it is “measured”

3.6.5. Calibration

This menu position is exclusively to be used by the Ormazabal's technical-commercial department, according to a certain procedure. It should not be used by the user.

3.6.6. Test mode

The test mode is to be used by Ormazabal’s technical– commercial department exclusively, following a specic procedure. It must not be used by the user.

check in “measurements” that the ratio of the inverse/direct component is close to 0 %, when introducing 3 balanced currents of about 1 A.

indicates that it must be calculated as a vectorial sum of the simple phase to ground voltages.

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3.6.7. Push-buttons/LEDs enabling and locking by command

Unit configuration

Under the title “PUSH-BUTTONS” there are two settings:

“ENAB. PUSH-BUTTON” (enable push-buttons): If this setting is at “COMMAND”, the front plate command push-buttons are enabled; if it is set at “NO”, it is as if they did not exist. If it is at “FUNCTIONALS” both the command push-buttons and the keys can be used to order commands. These pushbuttons are only eective when the equipment is in local mode. The equipment starts in remote. To change to local mode, press “L/R” and “.” if it is in COMMAND and “L/R” if it is in FUNCTIONALS. The order “local mode” or “remote mode” must be programmed in the command associated to that push-button (“Command conguration” screen), in the ON and OFF positions. The equipment changes then to local mode and the functional push-buttons are enabled.

3.6.8. Power supply supervision enabling

The power supply supervision can be enabled or not. For its operation, see section “Power supply supervision”.

3.6.9. Power supply enabling

“ENAB.COMMAND LOC” (Enable blocking/unblocking by command): If this setting is at “YES”, the programmed protection function blocking/unblocking control commands are enabled; if it is set at “NO”, they are disabled.

“R KEY BLOCKING”. If it is set to “YES”, the Leds are not handled in the program, they are all deactivated except for Led 8, which turns green.

There is a setting under “PRESS REMOTE” which allows to execute commands via push-buttons if it is set to “YES”, even in “remote” mode. If it is set to “NO”, it must be in “Local” mode to execute the commands.

Only in those models with the option “battery voltage measurement”. The power supply supervision can be

3.6.10. Display contrast setting

The procedure to follow is the following one:

1. By pushing key “

” (in a 16-key keyboard) for 3 to 5 seconds, you can enter the contrast setting menu and there will appear the text “contrast setting. - DOWN + U P”.

enabled or not. See “Power supply supervision” section for its operation.

2. With keys “

↑ and ↓“ the contrast is set. With “↑“ more

bright is given and with “↓ “ it is darkened.

In order to validate, push “ESC” or after 1 minute it goes back to its normal situation, with the changes already carried out.

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4. Protection functions. Description and settings

4.1. Phase overcurrent protection

4.1.1. General description

Three-phase overcurrent protection, with the next selectable characteristics (function 5051):

Timed characteristic

1. Inverse normal time( I BSC

[3]

or I ANSI))

2. Inverse short time(IC BSC)

3. Inverse long time (IL BSC)

4. Very inverse time (MI BSC or MI ANSI)

Instantaneous characteristic

1. Two instantaneous elements

2. Additional time

The operation of this protection is coordinated with the reclosing function.

5. Extremely inverse time (EI BSC or EI ANSI)

6. Very inverse special time (MIEs BSC)

7. Moderately inverse time (ANSI)

Some protection families have a second directional overcurrent function (67, 67N), called HIGH2, which is independent from the rst one.

8. User curve(USER 1 or USER 2)

9. Denite time

10. Drop out with disc emulation option

4.1.2. Settings ranges of the timed characteristic (6 tables) (normal and HIGH2)

Setting Min Max Step Notes

Enable Pickup [A]

Curve type

Time index

Denite time [s]

These settings can be found in the console on the screen “overcurrent protection (1)”. PHASES TIME SETTING box.

0.02 40.00 0.01 With standard ratings

0.1 200.0 0.01 With specied ratings

0.05

0.5

0.0 600.0 0.01

1.09

30.0

0.01

0.1

YES/NO/pickup/YES+drop out

Denite time Normal curve, very inverse, extrem. inverse, etc. User curve

For IEC curves For ANSI curves

Table 4.1. Settings ranges of the timed characteristic

They can be modied depending on the voltage, if the unit contains the option 51 V (see “voltage control”).

If the enable setting is set at YES, the function can generate trips, if it is at NO it is not carried out. If it is at PICK UP, it picks up but it doesn’t give tripping signal. If it is at YES+DROP, This happens by emuling the disc (see below). This is general for overcurrent functions.

[3]

Equivalent to IEC 255-4

The pick up current is set in amperes in the secondary.

Working in denite time, the relay trips after the set time, since the starting current has been exceeded, is elapsed, independently from the current value.

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Protection functions. Description and settings

Working with curve, the time to trip depends on the selected curve (family and index) and the current value. The curves which are normal, very inverse and extremely inverse, or user curves can be selected as corresponding to the standard BS142 (IEC 255-4) or ANSI. In appendix II graphics and formulas for calculating the time are given, as a function of the ratio between the current and the pickup current. If the ratio is higher than 40, 40 will be taken for calculating.

It is also possible to program 4 user curves.

The unit allows setting the drop time characteristics, emulating the induction disc of the electromechanical relays and allowing a better coordination of the protection.

If the enabling is set at "YES+REDROP" and the current decreases below the 95 % of the set value, the trip drops instantaneously and the pickup drop time will depend on

4.1.3. Timing cancellation

Through the console screen “timing cancellation” or through keyboard/display (in the CURRENT PROT., in TIMING CANCELATION) a digital or logical input can be

the selected curve (family and index) and o the current. If the selected curve is denite time, the pickup will drop when the programmed time since it decreases below the pick up current elapses, regardless the current value. (See “curves for timed characteristic” in appendix II).

If the enabling is set at "YES" and the current decreases below the 95 % of the set value, the trip and the pick up drop instantaneously.

The maximum error in times, for values higher than 50 ms, is 30 ms or 5 % of the theoretical value (the higher of the two). For the denite time setting of 0 ms, the behavior is the same as for the instantaneous characteristic (see next paragraph).

If an unacceptable index value is programmed for a type of curve, the unit takes the closest acceptable value.

programmed for every overcurrent timed , so that if the function is activated it is not timed any more and behaves as instantaneous.

4.1.4. Settings ranges of the instantaneous characteristic (low level) (6 tables) (normal and HIGH2)

Setting Min Max Step Notes

Enable Phase instantaneous trip [A]

Additional time [s] Special function

These settings can be found in the console on the screen “overcurrent protection (1)”. INSTANT PHASES box

Table 4.2. Settings ranges of the instantaneous characteristic

The trip current is set in secondary amperes.

0.02 40.00 0.01 With standard ratings

0.1 200.0 0.01 With specied ratings

0.00 60.00 0.01

tripping currents, on 30 to 35 ms. If an additional time is

YES/NO/pick up

See “Instantaneous special operation”

programmed, this is added to the indicated time.

If additional time 0 is programmed, for current values between the tripping current and 1.5 times that value, it trips between 40 and 50 ms; for 2 times the tripping current between 35 and 40 ms, and from 3 times the

With additional times higher than 50 ms the maximum time error is 30 ms or 5 % of the theoretical value (the higher of the two).

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4.1.5. Settings ranges of the instantaneous characteristic (high level) (6 tables)

Setting Min Max Step Notes

Enable Phase instantaneous trip [A]

Additional time [s]

These settings can be found in the console on the screen “instantaneous overcurrent prot. (HIGH1)”. INSTANT PHASES box (HIGH).

Table 4.3. Settings ranges of the instantaneous characteristic

0.02 40.00 0.01 With standard ratings

0.1 200.0 0.01 With specied ratings

0.00 60.00 0.01

YES/NO/pick up

The characteristics of the times are the same as in the previous paragraph.

4.2. Neutral overcurrent protection

4.2.1. General description

In neutral earthed installations, the neutral overcurrent protection has the same possible characteristics as the described for phase overcurrent, and independent settings (function 50N/51N).

4.2.2. Setting ranges of the timed characteristic (6 tables) (normal and HIGH2)

Setting Min Max Step Notes

Enable Pick up [A]

Curve type

Time index

Denite time [s]

These settings can be found in the console on the screen “overcurrent protection(1)”. NEUTRAL TIME SETTING box.

Table 4.4. Setting ranges of the timed characteristic

0.010 20,000 0.001 With standard ratings

0.1 200.0 0.01 With specied ratings

0.05

0.5

0.0 600.0 0.01

1.09

30.0

0.01

0.1

YES/NO/pick up/YES+drop

Denite time Normal curve, very inverse, extrem. inverse, etc. User curve

For IEC curves For ANSI curves

The remarks about curves and accuracy are the same as the ones quoted for phases.

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4.2.3. Setting range of neutral time inhibition (6 tables)

Setting Min Max Step Notes

Limit current [A]

Table 4.5. Setting range of neutral time inhibition

0.1 200.0 0.1

Protection functions. Description and settings

The neutral time inhibition setting allows the inhibition of this characteristic from the moment the neutral

that is, the curve turns into a horizontal line from this value. If you do no want to use it, program the maximum value.

instantaneous characteristic picks up onwards.

This setting is in the “TOC limitations” screen, under the title

The limit current is the one after which it stops following the

“neutral TOC limitations”.

curve and it trips in the time the curve gives for this value,

4.2.4. Settings ranges of the instantaneous characteristic (low level) (6 tables) (normal and HIGH2)

Setting Min Max Step Notes

Enable Neutral instantaneous time [A]

Instantaneous additional time [s] Special operation Type of neutral (only in HIGH2)

These settings can be found in the console on the screen “overcurrent protection (1)”. INSTANT NEUTRAL box.

Table 4.6. Settings ranges of the instantaneous characteristic

0.010 20.000 0.001 With standard ratings

0.1 200.0 0.01 With specied ratings

0.00 60.00 0.01

YES/NO/pick up

See “instant. special operation” Transformer/calculated

The trip current is set in secondary amperes.

The remarks about functioning time are the same as the ones quoted for phases.

4.2.5. Settings ranges of the instantaneous characteristic (high level) (6 tables) (normal and HIGH2)

Setting Min Max Step Notes

Enable Neutral instantaneous trip [A]

Additional time [s]

These settings can be found in the console on the screen “instantaneous overcurrent protection. (HIGH1)”. INSTANT NEUTRAL box (HIGH).

Table 4.7. Settings ranges of the instantaneous characteristic

0.010 20,000 0.001 With standard ratings

0.1 200.0 0.01 With specied ratings

0.00 60.00 0.01

YES/NO/pick up

The characteristics of times are the same as the ones indicated for phases.

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4.3. Instantaneous special operation

The settings corresponding to the phase, neutral and sensitive neutral instantaneous (only in the low level), are extended with the settings below:

Special operation: Options:

NO Enab. after closing (enable ONLY after closing) Tim. after closing (timing after closing) Tim. after reclosing 1 (timing after reclosing 1)

Special xed time. It is the instantaneous operation time, during the special operation.

Special operation time. It is the time during which the special operation is maintained.

In the trip permission screen there are independent masks for every instantaneous level.

The operation described below implies the setting “enable” be at YES and that the recloser is “in service” (although it can be blocked).

It is enabled at “NO”; the instantaneous is disable under any condition.

If the recloser is out of service, the masks do not have any eect.

Operation (with setting of the function enable at YES):

Option “NO”. Everything operates as now. “Enable only after closing” option.

After any closing (manual or automatic), if the corresponding mask in the trip permission screen is at YES, during “Special operation time”, the instantaneous operates with the additional time “Special xed time”; outside the special operation time the instantaneous is disabled.

The “Special operation time” is initiated in each closing.

If the corresponding mask is at NO, the instantaneous is disabled.

Figure 4.1. Instantaneous special operation

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Figure 4.2. Option timing after closing

Protection functions. Description and settings

Option “Timing after closing”. After any closing (manual or automatic), if the corresponding mask in the trip permission screen is at YES, during “Special Operation Time”, the instantaneous operates with the additional time “special

Figure 4.3. Option timing after reclosing

xed time” instead of using the normal “additional time. This time can be 0, in order to act as a true instantaneous.

If the corresponding mask is at NO, the instantaneous is disabled.

Option “Timing after reclosing 1”. After the rst reclosing, if the corresponding in the trip permission screen is at YES, during “special operation time”, the instantaneous operates with the additional time “Special Fixed Time” instead of using the normal “additional time.

IG-150-EN version 04; 03/10/16

If the corresponding mask is at “NO”, the instantaneous is disabled.

In other closings, dierent to the rst reclosing, the unit operates as it does now, that is, it depends on the masks and when it is enabled, it is with the normal additional time.

Protection functions. Description and settings General instructions

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4.4. 2nd harmonic restraint

It locks the rst level of the units 51, 50, 51N, 50N and 46 (time and instantaneous unbalance). For 50/51 units,

In order to deactivate the locking, the following conditions must be fullled:

restraint is available for a single phase or for all phases.

1. This phase is below the 95 % of the minimum current.

If it is programmed as restraint of the phase itself:

In order to activate the locking, the following must be given at least in this phase and simultaneously:

1. The fundamental current must be higher than the minimum value for inrush.

2. The ratio between the 2

harmonic value and the

fundamental one must exceed the threshold set.

3. The 2

harmonic must be higher than 10 mA with

standard ratings, or higher than 50 mA with specied

2. This phase is below the 95 % of the restraint percentage

threshold.

In this case it is the same for neutral.

If it is programmed as “restraint for all phases” it is enough with the conditions of one phase in order to lock the rest.

If the conditions are given in one phase or in neutral, it is enough to lock the unbalance functions.

The settings (6 tables) are those below:

ratings.

Setting Min Max Step Notes

2nd harmonic restraint enable

Neutral enable

2nd harmonic threshold [%] Phase minimum threshold [A] Neutral minimum threshold [A]

The settings are located in the console in the “2nd harmonic restraint” and “manual closing protection blocking” screens.

5 100 1

0.1 200 0.01

NO Restraint for phase Restraint for all phases

NO YES

Table 4.8. Settings

4.5. Protection functions blocking with manual closing

This function is only available in the EH3211 model.

A “BLOQ. FUN. PROT. CM” signal is generated, which allows to block any unit by means of logics.

This function is only active when the equipment is in manual mode. The equipment is considered to be in manual mode when the recloser is blocked by command, input, R key or by setting. If the equipment is not provided with a recloser, this function is always active.

This function is an OR of a function that controls the module and another one that controls the argument of the positive and negative sequences.

The conditions to activate the blocking signal are as follows:

1. I

>k*I1, where k can be set

2. Ang (I be set

Each condition has its own activation. If they are both enabled the output is an OR of both of them. If the reverse and direct sequences are less than 0.15 A the function’s output is zero and in this situation it is not possible to block any functions.

)– Ang (I1)> Adj. Angle, where Adj. Angle can

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Protection functions. Description and settings

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The settings (6 tables) are:

Setting Min Max Step Notes

Module enable

K module constant Angle enable

Angle

The settings are located in the console in the “2nd harmonic restraint” and “manual closing protection blocking” screens.

Table 4.9. Settings

0 10 0.01

0 359 1

NO YES

4.6. Directionality of the phase and neutral overcurrent protections

Depending on model, the described protection functions can be directional.

In that case, each of the functions (timed, low instantaneous, high instantaneous) has an additional setting, “torque control”, if it is FOWARD or REVERSE, it indicates that the function must act as directional (in one direction or in the other one) and if it is set as NO it must act as NONDIRECTIONAL.

For the neutral directional there are 4 directional types: The angular, the watimetric, the I*cos(j) and the I*sen(j).

Watimetric directional and the cosen type directional are practically equal, with the only exception that one is set to W and the other one to A.

Even when the torque control set at YES (FOWARD or REVERSE), the directionality can be blocked (make it operate as nondirectional) by PROCOME command or by digital or logic input (if it has been programmed in the “Locking (I)” screen in the “directional” position.

The settings corresponding to the directionality criteria are on the screen “overcurrent protection screen (3)”. The possibilities are related next and afterwards the functions operation is described.

Phase direction criteria. It is applied in the phase directional function (67). Next are the possibilities: “Quadrature” and “sequences”.

Phase angle (degrees). Programmable from 0 to 360°. It is applied in the phase directional function (67) and in the neutral directional function (67N) in case the S- neutral direction criterion has been chosen.

Neutral polarization. This setting is only for models that have the possibility to polarize the neutral direction by current. In this case, the possibilities are V (polarization by voltage only), I (polarization by current only) or V+I (polarization by

both parameters).

Neutral directional type. It can be programmed as “angular criteria”, “Icos phi”, “Isen phi” or “watimetric”.

Neutral direction criteria. It is applied in the neutral directional function when it is polarized by voltage. The possibilities are: S

(zero voltage polarization), S- (polarization by

negative voltage sequence), or S0 + S- (polarization by both parameters).

If several polarization criteria combinations are used, the fault will be decided to be forwards if some of the criteria show it is forwards.

Neutral angle (degrees). Programmable from 0 to 360°. It is applied in the neutral directional function (67N) in case the S

neutral direction criterion has been chosen.

Minimum active power. It is used for watimetric directional. Setting range from 0 to 2000 W in steps of 1 W.

P=Vr*Ir*cos(j-jc) j=Ánguloentre VreIr.

If the power is higher than this value in negative it is considered to be forward fault. If it is higher than this value in positive value it is backwards fault.

Minimum current. It is used for I*cos(j) and I*sen(j) directional.

Setting range from 0.1 to 200 A in steps of 0.01 A.

=Ir*cos(j-jc) j=angle between VrandIr.

minimum

If the I minimum is higher than this value in negative it is considered to be forward fault. If it is higher than this value in positive value it is backwards fault.

Polarization voltage. It is the minimum value of the polarization voltage, below which it is considered that the direction is not known with certainty.

minimum threshold. In order to allow the pick up of the

neutral directional unit, a Vr minimum threshold must be exceeded.

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Trip permission without V

(Directional Locking on the

pol

display). If it is set as YES allows the overcurrent trip if the polarization voltage is lower than the minimum polarization voltage; if it is set as NO in those conditions the overcurrent trip is not allowed.

Phase zone width and neutral zone width. They are settings that show the angle that the trip zone of the phase and neutral units will respectively cover. That is, if the maximum torque line is set to 0° and the pick up zone width is set to 70° the relay will trip between + 35° y - 35°. This zone has

4.6.1. Phase directional in quadrature (67)

Operation

For the phase directionality detection, the polarization voltage is the one corresponding to the connection in quadrature (90°), where each phase current is compared with the compound voltage between the other two phases.

It works as three single-phase units in which the polarization voltages are the voltages composed by the healthy phases. These voltages are obtained through calculation or through transformer measurement depending if the setting voltage type shows that the introduced signals are simple voltages (calculation) or compound (measurement).

In case the phase order ABC is polarized with V

, Vbc and Vca

against Ic, Ia, and Ib. In case the phases order CBA is polarized with Vba, Vcb and Vac against Ic, Ia and Ib.

There is a 5

zone between the locking zone and the trip

zone, for which the present directional status is maintained.

5°

LMP

5°

to be added 5° at each side to obtain the locking zone. In this zone the relay maintains the last state in which it was (front or back). That is, if it comes from a trip zone, this trip is maintained until the locking zone is crossed. If it comes from a non-trip zone it is maintained without tripping until crossing that zone.

If, for example, is wished that the tripping zone be between

- 45° y + 135°, the “setting angle” must be set in 45° and the

“covered angle” in 180°.

Memory

It is polarized by the positive sequence voltage while it is higher than a threshold. If the voltage is lower than this value it is polarized by means of the voltage memorized 2cycles before disappearing the voltage. This memorization is maintained 0.5 s.

Trip permission without V

(directional locking on the

pol

display)

This setting is used when the polarization voltage falls below a threshold (polarization V setting), so that if it is set as YES, it indicates forwards (trip permission) and if it is set as NO, it indicates reverse (no permission).

The memory treatment has been previously done.

Signaling

It provides forward and reverse signaling per phase.

Being the trip Permission without V

(Directional Locking)

pol

set as NO if the polarization magnitudes are below the threshold, the direction is not signaled.

Being the trip Permission without V

(Directional Locking)

pol

set as YES if the polarization magnitudes are below the threshold, it signals reverse and forward.

Locking zone

Trip zone

90 - Setting angle

Angle covered by trip zone

Figure 4.4. Phase directional

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4.6.2. Phase directional by sequences (67)

Operation

Protection functions. Description and settings

Negative sequence directional

The direction is determined comparing the negative sequence voltage and current, being I

higher than a

threshold and V2 higher than a threshold.

90 - setting angle < arg (I2) – arg 92 (V2) < 270 - setting angle

Trip zone

Locking zone

Setting angle

Figure 4.5. Negative sequence directional

Negative sequence Directional Locking

1. If the negative sequence voltage is lower than a

threshold (Polarization V setting) the positive sequence directional is carried out.

2. If the negative sequence current is lower than a threshold (0.068 A) the previous selection is maintained.

Positive sequence directional

The direction is determined comparing the positive sequence voltage and current.

There is a 5

zone between the locking zone and the trip zone,

for which the present directional status is maintained.

90 - setting angle > arg I1) – arg (V1) > 270 - setting angle

Locking zone

Tripping zone

Angle covered by the tripping zone

Setting angle

Figure 4.6. Positive sequence directional

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Memory

It is polarized by the positive sequence voltage while it is higher than a threshold. If the voltage is lower than this value, it is polarized by means of the voltage memorized 2cycles before the voltage disappears. This memorization is maintained 0.5 s.

Trip permission without V

(Directional Locking on the

pol

display)

This setting is used when the polarization voltage (V

) falls

below a threshold (setting), so that if it is set as “YES”, it indicates forwards and if it is set as “NO”, it indicates reverse.

The memory treatment has been previously done.

4.6.3. Neutral directional (67N); polarization by S0(V0)

Operation with polarization by V0, zero sequence voltage

The direction is determined using the neutral current (3 I

)

with the neutral voltage as polarization, (3 V0). The angle determines the range in which the fault is considered forwards and reverse. The fault is considered forwards if:

Signalling

It provides forward and reverse signaling. If the direction is forwards, the signals “Forward A”, “Forward B” and “Forward C” get activated. If the direction is reverse, the signals “Reverse A”, “Reverse B” and “Reverse C” get activated.

Being the trip permission without V

(Directional Locking)

pol

set as “NO”, if the polarization magnitudes are below the threshold, the direction is not signaled.

Being the trip permission without V

(Directional Locking)

pol

set as “YES”, if the polarization magnitudes are below the threshold, it signals reverse and forward.

90-setting angle < arg (I0) – arg (V0) < 270-setting angle

There is a 5

zone between the locking zone and the trip

zone, for which the present directional status is maintained.

The measurement of 3 V

can be obtained through a

transformer or calculated using the phase simple voltages. If the “type of voltage” setting is set as “compound” the calculated zero sequence voltage will always be zero. The measurement of 3 I0 can also be calculated as the sum of the phase currents, in models in which there isn’t a transformer assigned for that measurement

Tripping zone

Locking zone

Angle covered by the tripping zone

Setting angle

Figure 4.7. Homopole sequence directional

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Protection functions. Description and settings

Trip permission without V

(Directional Locking on the

pol

display)

This setting is used when the polarization voltage (3 V

) falls

below the threshold (setting V polarization), so that if it is set as “YES”, it indicates forwards and if it is set as “NO”, it indicates reverse.

4.6.4. Neutral directional (67N); polarization by S-(V2)

Operation with polarization by V2, reverse sequence voltage

The direction is determined using the negative sequence current with the negative sequence voltage (V

) as

polarization. The angle determines the range in which the fault is considered forwards and reverse. The setting angle is the same as that used for the phase directional.

There is a 5

zone between the locking zone and the trip

zone, for which the present directional status is maintained.

Signaling

It provides forward and reverse signaling.

Being the trip permission without V

(Directional Locking)

pol

set as “NO” if the polarization magnitudes are below the threshold, the direction is not signaled.

Being the trip permission without V

(Directional Locking)

pol

set as “YES” if the polarization magnitudes are below the threshold, it signals reverse and forward.

Trip permission without V

(Directional Locking on the

pol

display)

This setting is used when the polarization voltage (V

) falls

below the threshold (V polarization setting), so that, if it is set as “YES”, it indicates forwards and if it is set as “NO”, it indicates reverse.

Signaling

90 - setting angle < arg (I2) – arg (V2) < 270 - setting angle

Trip zone

Locking zone

Setting angle

Figure 4.8. Negative sequence directional

It provides forward and reverse signaling.

Being the trip permission without V

(Directional Locking)

pol

set as “NO”, if the polarization magnitudes are below the threshold the direction is not signaled.

Being the trip permission without V

(Directional Locking)

pol

set as “YES”, if the polarization magnitudes are below the threshold signals reverse and forward.

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Protection functions. Description and settings General instructions

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4.6.5. Neutral directional (67N); polarization by S0+S-(V0+V2)

Operation with polarization by V0andV

The direction is determined regardless of the previous criteria. If any of them determines that the direction is the trip direction, the trip permission is given.

Trip permission without V

(Directional Locking on the

pol

display)

This setting is used only when in both of the previous units the polarization magnitude is below the threshold (Vpolarization setting).

4.6.6. Neutral directional (67N); polarization by I

Operation with polarization by current

The direction is determined comparing the earthing current (I

) with the neutral current. The trip direction happens

pol

when both currents are in phase.

Signaling

It provides forward and reverse signaling. The directional units output is an OR of the polarization by voltage and polarization by current units so that the trip permission criterion prevails over the locking criterion.

Being the trip permission without V

(directional locking)

pol

set as “NO”, if the polarization magnitudes are below the threshold the direction is not signaled.

Being the trip permission without V

(Directional Locking)

pol

set as “YES”, if the polarization magnitudes are below the threshold signals reverse and forward.

Locking by lack of polarization

If the polarization current (I

) falls below a threshold

pol

(0.068A), it indicates that the fault is reverse and there is no trip permission.

For the direction to be checked the following condition must be fullled I

There is a 5

>0.068A

pol

zone between the locking zone and the trip zone, for which the present directional status is maintained, both if it is polarized by voltage or by current.

Trip zone

Locking zone

90 - Torque line

Figure 4.9. Zero sequence directional

Signaling

It provides forward and reverse signaling.

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Protection functions. Description and settings

4.6.7. Neutral directional (67N); polarization by S0+I(V0+I

Operation

The direction is determined regardless of the previous criteria (V

and I). If any of them determines that the

direction is the trip direction, the trip permission is given.

The earth fault directional output is an OR of the polarization by voltage and polarization by current units so that the trip permission criterion prevails over the locking criterion.

Trip permission without V

(Directional Locking on the

pol

display)

This setting is used only when in both of the previous units the polarization magnitude is below the threshold (V polarization setting) in the case of the V

and below

68mA in the case on the current.

4.6.8. Neutral directional (67N); polarization by S– + I(V2+I

)

pol

Signaling

Being the trip permission without V

(Directional Locking)

pol

set as “NO”, if the polarization magnitudes are below the threshold the direction is not signaled.

Being the trip permission without V

(Directional Locking)

pol

set as “YES”, if the polarization magnitudes are below the threshold signals reverse and forward.

)

pol

Operation

The direction is determined regardless of the previous criteria (V

and I). If any of them determines that the

direction is the trip direction, the trip permission is given.

The earth fault directional units output is an OR of the polarization by voltage and polarization by current units so that the trip permission criterion prevails over the locking criterion.

Trip permission without V

(Directional Locking on the

pol

display)

This setting is used only when in both of the previous units the polarization magnitude is below the threshold (V polarization setting) in the case of the V

and below

68mA in the case of the current.

Signaling

Being the trip permission without V

(Directional Locking)

pol

set as “NO”, if the polarization magnitudes are below the threshold the direction is not signaled.

Being the trip permission without V

(Directional Locking)

pol

set as “YES”, if the polarization magnitudes are below the threshold signals reverse and forward.

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Protection functions. Description and settings General instructions

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4.6.9. Neutral directional (67N); polarization by S0 + S- + I (V0 + V2 + I

Operation

The direction is determined regardless of the previous criteria (V

,V2 and I). If any of them determines that the

direction is the trip direction, the trip permission is given.

Signaling

The earth fault directional units output is an OR of the polarization by voltage and polarization by current units so that the trip permission criterion prevails over the locking criterion.

Being the trip permission without V set as “NO”, if the polarization magnitudes are below the threshold the direction is not signaled.

Being the trip permission without V

Trip permission without V display)

(Directional Locking on the

pol

set as “YES”, if the polarization magnitudes are below the threshold signals reverse and forward.

This setting is used only when in the three units the polarization magnitude is below the threshold (V polarization setting) in the case of the V

and the V2 and

below 68 mA in the case of the current.

pol

)

((Directional Locking)

pol

(Directional Locking)

pol

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General instructions

P =

Im(I)

ekor.rps

4.6.10. Neutral directional (67N); watimetric directional

Protection functions. Description and settings

It is used for lines with compensations by means of Petersen coil.

In order to allow the pick up of the directional unit the following must be fullled:

1. Exceed the V

minimum threshold.

2. For forwards faults the angle between the current and the voltage, displaced the maximum torque angle, and must be between 97 and 263.

3. 97<ang(I

)– angle(V0)+angle characteristics<263.

(Re(V) ⋅ cos(φ) + Im(V) ⋅ sin(φ)) ⋅ Re(I) + (Im(V) ⋅ cos(φ) – Re(V) ⋅ sin(φ)) ⋅

4. For backwards faults the angle between the current and the voltage, displaced the maximum torque angle, and must be between 277 and 83.

5. 277<ang(I

6. The power P = V

)–angle(V0)+angle characteristics<83.

•cos (j-jc) must exceed the P

r•Ir

minimum threshold in absolute value. If P sign is negative, the fault is forward. It is positive it is reverse.

The equation to calculate P is the following one:

Tripping Zone

Locking zone

Figure 4.10. Neutral directional

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Protection functions. Description and settings General instructions

I·cos

(

│V│



ekor.rps

4.6.11. Neutral directional (67N); I*cos (φ)/I*sen (φ) directional

An input (“67N Isen (j) or Icos (j)”) can be programmed and when it gets activated the I*cos (j) operation mode changes to I*sen (j). This input, if programmed, cancels the

I*cos (φ) directional

In order to allow the pick up of the directional unit, the following must be fullled:

1. Exceed the V

2. The minimum current I

the minimum threshold in absolute value. If the sign is negative, the fault is forward. If it is positive, it is reverse.

3. For forwards faults, the angle between the current and the voltage, displaced the maximum torque angle, and must be between 97 and 263.

97<ang(I0)–ángle(V0)+characteristic angle<263

minimum threshold.

= Ir•cos (j-jc) must exceed

minimum

(

v – i – φ

Re(V) ⋅ cos(φ) + Im(V) ⋅ sin(φ)) ⋅ Re(I) + (Im(V) ⋅ cos(φ) – Re(V) ⋅ sin(φ)) ⋅ Im(I)

)

setting: If it is deactivated the algorithm I*cos (j) is carried out and if it is activated, the I*sen (j), regardless the setting. It does not aect the watimetrical directional or the angular.

4. For backwards faults, the angle between the current and the voltage, displaced the maximum torque angle, and must be between 277 and 83.

277<ang(I0)-angle(V0)+characteristic angle<83

The trip zone depends on the angle between the zero sequence voltage and the zero sequence current. If we are in the trip zone, the directional gives trip permission when the Io•cos (j-jc) value exceeds the setting (in negative value).

Tripping zone

Locking zone

Figure 4.11. I*cos(φ) directional

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General instructions

I·sin

(

│V│



ekor.rps

As the neutral units allow the trips with forward and reverse faults the characteristics will have the following form:

I*sen(φ) directional

Protection functions. Description and settings

Backwards

Forwards

Figure 4.12. Trip with forward and reverse faults

In order to allow the pick up of the directional unit, the following must be fullled:

1. Exceed the Vr minimum threshold.

2. The minimum current I

the minimum threshold set in absolute value. If the sign is negative, the fault is forward. If it is positive, it is reverse.

(

v – i – φ

=Ircos(j-jc) must exceed

mínima

Im(V) ⋅ cos(φ) + Re(V) ⋅ sin(φ)) ⋅ Re(I) + (Re(V) ⋅ cos(φ) – Im(V) ⋅ sin(φ)) ⋅ Im(I)

)

3. For forwards faults, the angle between the current and the voltage, displaced the maximum torque angle, and must be between 187 and 353.

187<ang(I0)–angle(V0)+characteristic angle<353

4. For backwards faults, the angle between the current and the voltage, displaced the maximum torque angle, and must be between 7 and 173.

7<ang(I0)–angle(V0)+characteristic angle<173

Tripping zone

Locking zone

Figure 4.13. I*sen(φ) directional

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4.7. Sensitive neutral overcurrent protection

4.7.1. General description

Sensitive neutral overcurrent protection, with the same possible characteristics as the ones described for phases

(except that there is only one instantaneous element), and independent settings (function 50Ns/51Ns).

4.7.2. Setting ranges of the timed characteristic (6 tables) (normal and HIGH2)

Setting Min Max Step Notes

Enable Pickup [A]

0.0005 1.0000 0.0001 With standard ratings

0.005 10,000 0.001 With specied ratings

Curve type

Time index

Denite time [s]

0.05

0.5

0.0 1,800.0 0.01

1.09

30.0

These settings can be found in the console on the screen “overcurrent protection (1)”

Table 4.10. Setting ranges of the timed characteristic

0.01

0.1

YES/NO/pickup/YES+drop

Denite time Normal inverse curve, very inverse curve, extremely inverse curve User curve

For IEC curves For ANSI curves

The remarks about curves and accuracy in times are the same as the ones quoted for phases.

4.7.3. Setting ranges of the instantaneous characteristic (single level) (6 tables) (normal and HIGH2)

Setting Min Max Step Notes

Enable Sensitive neutral instant. trip [A]

Additional time [s]

0.0005 1,0000 0.0001 With standard ratings

0.005 10.0 0.001 With specied ratings

0.00 600.00 0.01

Special operation

These settings can be found in the console on the screen “overcurrent protection (1)”

Table 4.11. Setting ranges of the instantaneous characteristic

YES/NO/pick up

See “instant. special operation”

The tripping current is set to secondary amps. The remarks about operating times are the same as the

ones quoted for phases.

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4.7.4. Directionality

Protection functions. Description and settings

In case the model has the “neutral directional” and the “sensitive neutral” units, the later can also be directional, for which it has the “torque control” setting (set to “YES”, it

The directional watrimetic and the cosine type directional are almost the same, with the only dierence that one is set

to W and the other one to A. indicates that it is directional, set to “NO”, it indicates that it is not).

The corresponding settings are in “current protection (3)”

screen. There are four types of directional for the sensitive neutral. The angle (polarization by V

, it works as the neutral one),

the watimetric, the I•cos (j) and the I•sen (j)

They work as a torque control of the sensitive neutral units.

These units are set in order to trip backwards or forwards.

Setting Min. Max. Step

Directional type

Minimum active power (homopole)

Characteristic angle φ

Table 4.12. Directionality

minimum

Angular

I•cos(j)/I•sen(j)

watimétric

0–100W 0,01W For the watimetric directional

P= V

• Ins• cos(j-jc)

j =angle between VnandI If the power is higher than this value in negative value it is considered as a forward fault it is higher than this value in positive, it will be a backwards fault

0-350° 1° For all the sensitive neutral directional

Setting that allows taking into account the characteristics of the system that can be used in lines with isolated neutral or with Petersen coil Common setting with the cosine directional of j

5mA–10A 0,001A It is used for the directional I•cos(j) and the I•sen(j)

=Ins•cos(j-jc)

minimum

j=angle betweenVnandI If the minimum I is higher than this value in negative value, it is considered to be forward fault If it is higher than this value in positive it is a backward fault

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Protection functions. Description and settings General instructions

P =

Im(I)

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Watimetrical directional

It is use for those lines with compensation via Petersen coil.

In order to allow the directional unit pickup, the following must be fullled.

1. Exceed a minimum threshold of V

2. For forwards faults, the angle between the current and the voltage, displaced the maximum torque angle, and must be between 97 and 263

97<ang(I0)–angle(V0)+characteristic angle<263

(Re(V) ⋅ cos(φ) + Im(V) ⋅ sin(φ)) ⋅ Re(I) + (Im(V) ⋅ cos(φ) – Re(V) ⋅ sin(φ)) ⋅

3. For backwards faults, the angle between the current and the voltage, displaced the maximum torque angle, and must be between 277 and 83

277<ang(I0)–angle(V0)+characteristic angle<83

4. The power P=VrInscos(j-jc) must exceed the minimum threshold of P in absolute value. If P sign is negative, the fault is forwards. If it is positive, it will be backwards.

The equation to be done to calculate P is the following one:

Tripping zone

Locking zone

Figure 4.14. 4.7.4.1. Watimetrical directional

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General instructions

I·cos

(

│V│



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I*cos(φ)/I*sen(φ) directional

Protection functions. Description and settings

It works as a torque control of the neutral sensitive unit.

It has an input (“67NS Isen(j) or Icos(j)”), twhich when it is activated it changes the operation mode from I•cos (j) to I•sen(j). This input, if programmed cancels the setting; if deactivated it carries out the algorithm I*cos(j) and if it deactivated the I*sen(j), regardless the setting. It does not aect the watrimetic or the angular directional.

I*cos(φ) direccional

In order to allow the picking up of the directional unit the following conditions must be fullled:

1. Exceed a V

2. The minimum current I

the minimum threshold in absolute value. If the sign is negative, the fault is forwards. If it is positive, it is backwards.

minimum threshold.

=Irsects(j-jc) must exceed

mínima

(

v – i – φ

Re(V) ⋅ cos(φ) + Im(V) ⋅ sin(φ)) ⋅ Re(I) + (Im(V) ⋅ cos(φ) – Re(V) ⋅ sin(φ)) ⋅ Im(I)

)

3. For forwards faults the angle between the current and the voltage, displaced the maximum torque angle, and must be between 97 and 263.

97<ang(I0)–angle(V0)+characteristic angle<263

4. For backwards faults the angle between the current and the voltage, displaced the maximum torque angle, and must be between 277 and 83.

277<ang(I0)–angle(V0)+characteristic angle<83

The trip zone depends on the angle between the zerosequence voltage and the zero-sequence pole current. In the trip zone, the directional allows the trip when the I0•cos (j-jc) value exceeds the setting (in negative value).

Tripping zone

Locking zone

Figure 4.15. I*cos(φ) directional

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Protection functions. Description and settings General instructions

(

│V│



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As the sensitive neutral units allow the trip with forwards and backwards faults, the characteristics will be as follows.

Backwards

Forwards

Figure 4.16. Forwards faults and backwards faults

I*sen(φ) directional

In order to allow the picking up of the directional unit the following conditions must be fullled:

1. Exceed a V

2. The minimum current I

minimum threshold.

minimum

=Ins sen (j-jc) must exceed the minimum threshold in absolute value. If the sign is negative, the fault is forwards. If it is positive it is backwards.

I·sin(v – i – φ

)

Im(V) ⋅ cos(φ) + Re(V) ⋅ sin(φ)) ⋅ Re(I) + (Re(V) ⋅ cos(φ) – Im(V) ⋅ sin(φ)) ⋅ Im(I)

3. For forwards faults the angle between the current and the voltage, displaced the maximum torque angle, and must be between 187 and 353.

4. 187<ang(I

)–angle(V0)+characteristic angle<353.

5. For the angle between the current and the voltage, displaced the maximum torque angle, and must be between 7 and 173.

7<ang(I0)–angle(V0)+characteristic angle<173.

Figure 4.17. I*sen(φ) directional

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General instructions

3•

 

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4.8. Current unbalance protection

4.8.1. General description

Protection functions. Description and settings

It contains the timed and instantaneous unbalance protection functions.

It must be taken into account that the phase sequence A-B-C or C-B-A is programmable, so that the I2 depends on that setting.

The protection works exactly in the same way as the phase overcurrent protection, taking as measurement input 3 times the modulus of negative sequence current.

= Ia + a

• Ib + a • Ic

Where a=1|120°

4.8.2. Setting ranges of the timed characteristic (6 tables)

Setting Min Max Step Notes

Enable Pickup.[A]

0.02 40.00 0.01 With standard ratings

0.1 200.0 0.01 With specied ratings

Curve type

Time index

Denite time [s]

0.05

0.5 0 600.0 0.01

1.09

30.0

0.01

0.1

These settings can be found in the console on the screen “Overcurrent protection (1)”. TIME SETTING UNBALANCE box

YES/NO/pickup/YES+drop

Denite time Normal inverse curve, very inverse curve, extremely inv. curve User curve

For IEC curves For ANSI curves

Table 4.13. Setting ranges of the timed characteristic

The remarks about curves are the same as the ones quoted for phases.

4.8.3. Setting ranges of the instantaneous characteristic (6 tables)

Setting Min Max Step Notes

Enable YES/NO/pickup/YES+drop Unbalance instantaneous trip [A] 0.02 40.00 0.01 With standard ratings

0.1 200.0 0.01 With specied ratings

Additional time [s] 0 60.00 0.01

These settings can be found in the console on the screen “Overcurrent protection (1)”. TIME SETTING UNBALANCE box

Table 4.14. Setting ranges of the instantaneous characteristic

The remarks about curves are the same as the ones quoted for phases

IG-150-EN version 04; 03/10/16

Protection functions. Description and settings General instructions

 



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4.9. Broken conductor protection

4.9.1. General description

It is a denite time protection unit. The starting value which is set is, in per unit, the module ratio between the negative and positive sequence currents.

The relay trips when the programmed time has expired since the starting setting value is exceed. To be operational, this unit requires that the current of any of the phases is at least 0.3 A, and both the direct and reverse sequence at

Ia + a



= Ia + a • Ib + a

• Ib + a • Ic

• Ic

Where a=1|120°

least 0.15 A (secondary).

4.9.2. Setting ranges (6 tables)

Setting Min Max Step Notes

Enable Pickup Denite time [s]

These settings can be found in the console on the screen “Overcurrent protection (2)”. OPEN PHASE box

Table 4.15. Setting ranges

0.10 0.50 0.01 Ir per unit. I2/I

0.05 300.0 0.01

YES/NO/pickup

4.10. Phase characteristic voltage control (function 51 V/50 V)

The timed phase overcurrent protection function can be controlled by voltage, in the way that the starting current decreases if the voltage control is lower than the nominal voltage. To activate this function the setting "voltage acceleration" of the settings screen “overcurrent protection 1 – phases” (or by keyboard/display the PROTECTIONCURRENT PROT.-PHASE TOC.- ACCEL. ENABLE) must be set to "YES". (If it is set to NO, the eective settings are the ones programmed in the time delay phase overcurrent unit).

The control by voltage has two possible operation ways, depending on the setting of the "voltage control" on the screen number 3 of the overcurrent protection settings (or by keyboard/display in PROTECT. FUNCTION-PA.CRTLVENABLE). If it is set to NO, the unit operates in control mode 1 and if it is set to YES, in control mode 2.

4.10.1. Mode 1 (51V)

The pickup current is controlled by the compound voltage V, corresponding to that phase, used as control. This function aects both levels of timing.

When the control voltage is 10 % of the nominal voltage, the controlled pickup current is 10 % of the programmed value.

When the control voltage is 90 % of the nominal voltage, the controlled pickup current is 90 % of the programmed value.

Between both values, the pickup current variation is lineal in respect to the control voltage.

For control voltage values higher than 90 % of the nominal voltage, the pickup current is the programmed one.

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4.10.2. Mode 2 (51V)

Protection functions. Description and settings

IWhen the control voltage is lower than the control voltage (one programmed value), the eective settings of the function 51 stop being the programmed in "phase time unit", to become the programmed as “voltage controlled”. In order to retrieve the “phase timing” setting, the three voltages must be higher than the control voltage.

This function is subordinated to the phase timed unit, in the sense of making it operative with other settings, but if the phase time delayed function is not enable, the function 51V has no eect. This function aects.

4.10.3. Mode 2 (50 V)

In an analogue way to the former one, when some of the compound voltages are lower than the control voltage (one programmed value), the eective settings of the function 50 stop being those programmed in "phase instantaneous unit" (as much in low as in high level), to become the programmed as “control by voltage”.

This function is subordinated to phase instantaneous, in the sense of making them operative with other settings, but if both phase instantaneous functions are not enabled, the function 50 V has no eect. All the instantaneous functions

The settings are the following:

1. Enable control by voltage: YES/NO (as it has been said YES means operating in mode 1, NO in mode 2, as long as the phase time delay "Acceleration" is set to YES).

2. Voltage control: 10 to 200 V.

3. Phase timed unit’s setting group (pickup, curve, time,

etc.), corresponding to “control by voltage”.

(normal, “high1” and “high2”, if existed) are aected and they start operating with the same values.

The settings are the following:

1. Enable: YES/NO (YES means operating in mode 2, NO means not operating).

2. Voltage control: 10 to 200 V.

3. Settings of phase instantaneous characteristic (pickup,

time), corresponding to “control by voltage”.

4.10.4. Summary

The function 51 V can operate in mode 1 or mode 2.

The function 50 V can operate only in mode 2.

It is possible the operation of the function 51 V in mode 1 and the function 50 V in mode 2

The setting change does not aect the enablings of the functions aected.

In order to operate the voltage control (in any mode) the setting “boosting by voltage” hast to be at YES

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Protection functions. Description and settings General instructions

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4.11. High current lockout

4.11.1. Description

There are two other instantaneous settings groups, one for phases and other for neutral (not for sensitive neutral). They are dierent from the usual ones for the two following characteristics:

4.11.2. Setting (table 0, single)

They are accessible through keyboard/display in "table 0" "protection" – “high current lockout", or through console in “overcurrent protection (3)” and they are:

1. “Phase high current lockout”

a. Phase enable: YES/NO b. Trip number: 1 to 4 c. Pickup: 0.1 to 200 A d. Additional time: 0 to 60 s

4.12. Cold load pickup

4.12.1. Description

If they give a trip, it will be moved on to denitive trip’

The number of trip is programmable (1 to 4) within the sequence of running cycle from which the function is active.

2. “Neutral high current lockout”

a. Neutral enable: YES/NO b. Trip number: 1 to 4 c. Pickup: 0.1 to 100 A d. Additional time: 0 to 60 s

This function aims to avoid non wished trips in the following situation: After being the line de-energized for a period of time and re-energized later, the load can exceed the protection setting without the presence of a fault. This may be due to the accumulative inrush current caused when connecting all the loads (furnaces, heaters, coolers, etc.) at the same time. This phenomena can occur not only at the moment of the breaker manual closing, after having remained open for a certain time, but also with the breaker permanently closed due to the operation of another upstream breaker.

What the function does is detecting when those conditions are given and changing the tripping settings during a programmable time

The function is activated when the current in the 3 phases is below 10 mA, then the programmed time starts to run to determine that the load is “cold” (this time can be 0, what means that any circuit breaker opening leads to the cold load situation). Once that time has expired and the current has not exceed again 12 mA, the protection usual setting values are replaced by the cold load pickup ones. When any of the phase current exceed 12 mA, a counter with programmable time starts, during which the setting are the cold load pickup ones, when expiring this time, the setting are again the usual ones.

IG-150-EN version 04; 03/10/16

General instructions

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4.12.2. Settings (table 0, single)

Protection functions. Description and settings

They are accessible through keyboard/display in "table 0" - " special protections" - "cold load" , or through console on the screen “overcurrent prot.-cold load” and they are the ones which replace the standard functions when that condition is given:

1. Phase time unit

2. Neutral time unit

3. Phase instantaneous unit

4. Neutral instantaneous unit

5. Sensitive neutral time unit

6. Sensitive neutral instantaneous unit

They are also under the name "cold load pickup" the ones which dene the function activity range:

1. “Cold load” enable: YES/NO.

2. Cold load time: 0 to 10 000 s. In console “cold load time”.

3. Operating time of “cold load” settings: 0.1 to 3600 s (1 hour) with 0.01 s resolution in console “duty time”. During this time, after coming back the current (>0.2 A) all the overcurrent protection settings (phase, neutral and sensitive neutral) stop being the corresponding to the “active table” and become the corresponding to “cold load”: Enabling actions, pickups, curves, times, etc.

Remarks

The function “cold load” is de-activated while the unit is on “ongoing cycle”, this means while the closing control is assumed by the reclosing function.

The function “cold load” does not operate on the “high current lockout” settings.

0,2 A 0,1 A

Usual settings

Cold lood settings

Usual settings

Cold lood time

Actuation time

Figure 4.18. Example with breaker opening and closure

0,2 A 0,1 A

Usual settings

Cold lood settings

Usual settings

Cold lood time

Actuation time

Figure 4.19. Example with very low load

IG-150-EN version 04; 03/10/16

Protection functions. Description and settings General instructions

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4.13. Isolated neutral protection

4.13.1. General description

The “Directional zero sequence relay” incorporated in the relay carries out a directional protection against earth faults in isolated neutral systems (67IN function). It can be used as non directional.

1. Input signals

Zero sequence current (IG): Comes from the connection in parallel of the secondaries of 3 phase current transformers or from a toroid transformer embracing the 3 phases.

Zero sequence voltage (V for each phase, it can be calculated internally. Other ways, it is measured from the open delta of three voltage transformers, with secondary nominal voltage of 110/√3 V. A setting indicates which of the procedures is used.

): If there are simple voltage signals

2. Measurements range

Current: 2 mA to 1 A

Voltage: 0.5 V to 200 V (3*110/√3 V)

The characteristic curve of this protection function is the following:

They are settable parameters

1. Enable. If it is set to YES allows the protection units actuation; set to NO inhibits the actuation and in pickup it operates but without tripping.

2. Torque control (“external lock”). If it is set to “YES”, it operates as directional, checking the angle between V

and IG; if it is set to “NO” it does not check the angle, that is it works as non directional.

3. Low current (I

in the characteristic curve). Range 0.005

to 1 A, with 1 mA resolution.

4. High current (I

). Range 0.005 to 1 A, with 1 mA

resolution.

5. I

> = IL must be fullled

6. Low voltage (V

7. High voltage (V

). Range 0.5 V to 60 V. 0.1 V resolution.

VH > = VL must be fullled.

8. First trip timing. Range 0 to 60 s. 0.01 s resolution.

9. Switch to instantaneous timing. Range 0 to 10 s. 0.1 s.

resolution.

Operating as directional, the relay trips when the point dened by the measured V

and IG values is within the

trip zone of the characteristic curve, being the DELAYED with respect to VG an angle in the interval 90 º ± 45 º. As “Non directional” the only trip condition is to be within the characteristic zone, regardless of the angle.

Trip zone

Figure 4.20. Characteristic curve

4.13.2. Setting ranges

Parameter Min Max Step Notes

Enable Torque control (external lock) Low current [A] High current [A] Low voltage [V] High voltage [V] First trip timing [s] Switch to instantaneous timing

The rst trip is timed according to the corresponding setting parameter, the successive trips that happen during the time programmed as “switching time” starting from that rst trip are instantaneous; the rst one from that time is timed again.

YES/NO

0.005 1 0.001

0.5 60.0 0.1

0.00 60.0 0.01

0.0 10.0 0.1

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General instructions ekor.rps

4.14. Overvoltage protection

4.14.1. General description

Protection functions. Description and settings

Three-unit overvoltage protection, which can be simples or compounds (see “General settings”), with following selectionable characteristics to choose from (function 59):

Timed characteristic (programmable curves IEC or ANSI)

1. Inverse normal time (I BSC or I ANSI)

2. Inverse short time (IC BSC)

3. Inverse long time (IL BSC)

4. Very inverse time (MI BSC or MI ANSI)

5. Extremely inverse time (EI BSC or EI ANSI)

4.14.2. Setting ranges of the timed characteristic (6 tables)

Setting Min Max Step Notes

Enable Pickup [V] Curve type

Time index

Denite time [s]

Table 4.16. Setting ranges of the timed characteristic (6 tables)

10 200 0,1

0.05

0.5

0.0 600.0 0.01

6. Very inverse special time (MIEs BSC)

7. Moderately inverse time (ANSI)

8. 4 User curve (USER 1 up to USER 4)

9. Denite time

Instantaneous characteristic

1. Instantaneous unit

2. Additional time

The functioning of this protection does not cause automatic reclosing.

YES/NO

Denite time Normal inverse curve Short inverse curve Long inverse curve Very inverse curve Extremely inverse curve Very inverse special curve Moderately inverse curve User curve

1.09

30.0

0.01

0.1

For IEC curves For ANSI curves

These settings can be found in the console on the screen “voltage protection”.

The timed curves are the same as the ones used by the overcurrent protection units.

The pickup voltage is set to secondary volts.

Working with denite time, the relay will trip at the end of the programmed time since the pickup voltage is exceeded, independently of the voltage value

IG-150-EN version 04; 03/10/16

Working with curve, the tripping time depends on the selected curve (family and index) and on the voltage value. In the Appendix II are given the graphics and formula for calculating the time, in function of the ratio between the voltage and the pickup voltage.

The remarks about accuracy in times are the same as the given for the overcurrent function

Protection functions. Description and settings General instructions

ekor.rps

4.14.3. Setting ranges of the Instantaneous characteristic (6 tables)

Setting Min Max Step Notes

Enable YES/NO Phase instantaneous trip [V] 10 200 0.1 Additional time [s] 0.00 60.00 0.01

Table 4.17. Setting ranges of the Instantaneous characteristic (6 tables)

These settings can be found in the console on the screen “voltage protection”.

The tripping voltage is set to secondary volts.

The remarks about times are the same as those given for the overcurrent function

4.15. Undervoltage protection

4.15.1. General description

Three-unit overvoltage protection, which can be simples or compounds (see “General settings”), with following selectable characteristics to choose from (function 59):

Timed Characteristic:

1. Inverse normal time (I BSC or I ANSI)

2. Inverse short time (IC BSC)

3. Inverse long time (IL BSC)

4. Very inverse time (MI BSC or MI ANSI)

5. Extremely inverse time (EI BSC or EI ANSI)

6. Very inverse special time (MIEs BSC)

In both the timed and instantaneous functions, once the protection starts up, the drop takes place when the voltage drops to 99 % of the start set value, if it is higher than 50 V (or to 98 % if it is lower)

7. Moderately inverse time (ANSI)

8. 4 User curves (USER 1 up to USER 4)

9. Denite time

Instantaneous characteristic:

1. Instantaneous unit

2. Additional time

The functioning of this function does not cause automatic reclosing.

4.15.2. Setting ranges of the timed characteristic (6 Tables)

Setting Min Max Step Notes

Enable Pickup [V] Curve type

Time index

Denite time [s]

Table 4.18. Setting ranges of the timed characteristic

10 200 0.1

0.05

0.5

0.0 600.0 0.01

IG-150-EN version 04; 03/10/16

1.09

30.0

0.01

0.1

YES/NO

Denite time Normal inverse curve Short inverse curve Long inverse curve Very inverse curve Extremely inverse curve Very inverse special curve Moderately inverse curve User curve

For IEC curves For ANSI curves

General instructions ekor.rps

Protection functions. Description and settings

These settings can be found in the console on the screen “voltage protection”.

Working with curve, the tripping time depends on the selected curve (family and index) and on the voltage value. In the appendix II are given the graphics and formula for

The timed curves are the same as the ones used by the overcurrent protection units.

The pickup voltage is set to secondary volts.

Working with denite time the relay trips once expired the

calculating of time, in function of the ratio between the starting voltage and the voltage.

The remarks about times are the same as the ones quoted for the overcurrent function.

programmed time since descending below the pickup voltage, independently of the voltage value.

4.15.3. Setting ranges of the instantaneous characteristic (6 tables)

Setting Min Max Step Notes

Enable YES/NO Phase instantaneous trip [V] 10 200 0.1 Additional time [s] 0.00 60.00 0.01

Table 4.19. Setting ranges of the instantaneous characteristic

These settings can be found in the console on the screen “voltage protection”.

In both the timed and instantaneous

The tripping voltage is set to secondary volts.

The remarks about times are the same as the ones quoted for the overcurrent function.

functions, once the protection starts up, the drop takes place when the voltage drops to 101 % of the start set value, if it is higher than 50 V (or to 102 % if it is lower).

4.16. Voltage unbalance protection

4.16.1. Timed characteristic

It is a denite time protection unit. The pickup value set is, in per unit the ratio between the negative and positive sequence voltage modulus.

Settings ranges (6 tables)

Setting Min Max Step Notes

Enable YES/NO Pickup 0.10 0.50 0.01 In per unit. V Denite time [s] 0.0 600.0 0.01

Table 4.20. Settings ranges

These settings can be found in the console on the screen “overcurrent protection (2)”.

The relay trips once expired the programmed time since the pickup value is exceeded.

2/V1

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Protection functions. Description and settings General instructions

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4.16.2. Instantaneous characteristic

It is a denite time protection unit. It only checks if the phase order is the programmed one or the opposite one. In the case that the order is opposite to the programmed one it will trip after a programmed time.

Settings ranges (6 tables)

Setting Min Max Step Notes

Enable Denite time [s]

Table 4.21. Setting range

0.00 60.00 0.01

YES/NO

The settings of both characteristics can be found in the console on the screen “voltage protection”.

4.17. Zero sequence overvoltage protection

Zero sequence overvoltage protection (function 64 or 59N). The pickup value set is the zero sequence voltage coming from the open delta connection of the secondaries of the three voltage transformers or the calculated zero sequence voltage (3 V0) as vectorial sum of the phase simple voltages.

The setting dening whether the voltage is measured or calculated is only accessible through keyboard/display, in “Program table 0” – “dene protect.” (key #$8 8 ) – “neutral parameter”. At this point and under the text “NEUTRAL V TRANSF.”, 3 possibilities can be chosen: “No transf” (in this case the calculated value will be used), “voltage transf. 9” or “voltage transf. 5” (depending on the concrete HW model of the unit)

The function has the following characteristics to choose from.

Timed characteristic (IEC or ANSI programmable curves)

1. Inverse normal time (I BSC or I ANSI)

2. Inverse short time (IC BSC)

3. Inverse long time (IL BSC)

4. Very inverse time (MI BSC or MI ANSI)

5. Extremely inverse time (EI BSC or EI ANSI)

6. Very inverse special time (MIEs BSC)

7. Moderately inverse time (ANSI)

8. 4 User curves (USER 1 up to USER 4)

9. Denite time

Instantaneous characteristic

1. Instantaneous unit

2. Additional time

The functioning of this protection does not cause an automatic reclosing

The function can be deactivated by setting (timed and instantaneous at the same time)

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4.17.1. Setting range (6 tables)

Setting Min Max Step Notes

Enable Pick up [V] Curve type

Time index

Denite time [s] Instantaneous pickup [V] Additional time [s]

Table 4.22. Setting range

Protection functions. Description and settings

2 200 0.1

0.05

0.5 0 600.0 0.01 2 200 0.1 0 60.00 0.01

1.09

30.0

0.01

0.1

YES/NO (see note)

Denite time Normal inverse curve Short inverse time Long inverse time Very inverse curve Extremely inverse curve Very inverse special curve Moderately inverse curve User curve

For IEC curves For ANSI curves

These settings can be found in the console on the screen “voltage protection” in the column “OVERVOLTAGE 3 x V0.”

The time delay curves are the same as the ones used by the overcurrent protection units.

4.18. Frequency protection

This function has 5 steps, programmable as minimum frequency or maximum frequency.

Setting Min Max Step Notes

Minimum frequency enable Pickup [Hz] Denite time [s] Type

Table 4.23. independent settings

The common settings for all steps are:

Setting Min Max Step Notes

Minimum supervision voltage [V] Nº of pickup cycles

Table 4.24. Common settings

40 70 0.01

0 600.00 0.01

12 200 1

3 15 1

The starting voltage is set to secondary volts.

On denite time, the relay trips when the programmed time expires since the starting voltage is exceeded, independently of the voltage value.

The settings per step, independent for each step, are as follows (6 tables):

YES/NO

The time delay of this unit corresponds to the start set cycle number, more than 35 ms.

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In a console, the settings are in the “frequency protection” screen. The common ones are in “frequency monitoring”.

Protection functions. Description and settings General instructions

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4.18.1. Minimum frequency

Each step picks up if the frequency is below the set value during a number of cycles equal or higher than the setting “Nr. of pickup cycles”. Once it picks up, the programmed time must elapse to produce trip. The unit drops out if during two cycles the frequency is correct.

4.18.2. Maximum frequency

This unit causes pick up if the frequency is above the set value during a number of cycles equal or higher than the setting “Nr. of pickup cycles”. Once it picks up the programmed time must elapse to produce trip. The unit drops out if during two cycles the frequency is correct.

A trip by this function does not cause recloser actuation.

4.18.3. Frequency gradient

General description

This function has 4 steps. In each step, a relay activation occurs, if the frequency variation per time unit (frequency decreasing) is higher than the set value.

Lockings

If the voltage in phase B is lower than the setting “Minimum supervision voltage”, the frequency units pickup is not allowed.

Lockings

If the voltage in phase B is lower than the setting “Minimum supervision voltage” the frequency units pickup is not allowed.

The function is only eective for frequencies lower than a threshold called “maximum supervision frequency”, and for currents higher than a threshold called “Minimum current”.

4.18.3.2.Settings (6 tables)

Setting Min Max Step Notes

Enable. df/dt. Max. frequency supervision [Hz] Supervision minimum current [A] Pickup value (df/dt) [Hz/s] Denite time [s] Nº of pickup cycles D81

Table 4.25. Settings

40 70 0.01 (for each step)

0 100.0 0.1 (for all steps)

0.20 5 0.05 (for each step) 0 2 0.01 (for each step) 3 15 1 (for all steps)

YES/NO (for all steps)

In the console, the settings corresponding to each step are in the square “FREQUENCY DERIVATIVE” on the screen “frequency protection (1)”. The common settings, minimum voltage and Nr. of pickup cycles D81 (for the frequency derivative) are in the square “FREQUENCY SUPERVISION”.

The frequency measurement of each cycle is executed refreshing it each half cycle, as the gure shows.

The algorithm is executed each 5 ms only if the phase B voltage has crossed zero.

Both positive and negative crosses are measured but the frequency measurement is executed in complete cycles.

Figure 4.21. frequency measurement

The frequency is measured up to 35 Hz. Below this value, the frequency units are not activated.

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Protection functions. Description and settings

The algorithm stores the periods of the last 5 cycles of the signal and calculates the frequency derivative comparing the frequency measurement of the present cycle with the measurement 5 cycles before having in account the time space between both.

df/dt = (f1 - f5)/(T1 + T2 + T3 + T4)

f(Hz)

f5 = frequency measurement 4 cycles ago f4 = frequency measurement 3 cycles ago f3 = frequency measurement 2 cycles ago f2 = frequency measurement 1 cycle ago f1 = last frequency measurement T4 = period of the 4th cycle starting from the end T3 = period of the 3rd cycle starting from the end T2 = period of the 2nd cycle starting from the end T1 = period of the last cycle

Figure 4.22. period of the last 5 cycle signal

α=Arctan(df/dt)

t(s)

This calculus is repeated having in account the measurements separated by two cycles so that it makes sure that the frequency has been falling the whole time, that is, it is not a spurious measurement that can lead to a trip.

For the unit to pickup, the frequency derivative must be exceeded in module during the set number of cycles minus 4 cycles. That is, if it is set to 5 cycles the frequency rate of change must be viewed repeated once in order to pickup. If the setting is 4 or lower the unit picks up the rst time the measurement is viewed above the threshold (in absolute value).

The pickup happens only if the value of df/dt is negative, that is if the present frequency value is lower than the value 5 cycles before.

During the pickup process one measurement is allowed to be out of the pickup range without restarting the process. That is, if for example 3 cycles (set to 7 cycles) are required to cause pickup, it is enough if the threshold is exceeded 3 times out of 4 consecutive measurements.

Once the unit has picked up, for it to trip, the frequency rate of change measurement must remain between the value of df/dt set and a dropout value equal to df/dt minus 0.05 Hz/s during the set time.

If some of the inputs are programmed as breaker associated to the frequency gradient, the trip is locked until that output is viewed open.

Once the unit has picked up, for it to dropout the measurement of df/dt must be seen 0.05 Hz/s below the set value.

Figure 4.23. Logic

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)

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Lockings

The frequency derivative units are locked by:

1. Minimum supervision current. If the minimum current that ows through the phase A is lower than the setting, the pickup of the frequency derivative unit’s pickup is not allowed. When a current higher than the threshold appears, the relay waits 10 cycles before starting to execute the frequency gradient function.

4.19. Fuse failure

Fuse failure conditions are the following ones:

1. Positive sequence current I scale (40 A)

[4]

2. Positive sequence current I

3. The increase and decrease of the positive sequence current I

and of the neutral current Ir against the

current measure 2 cycles before must be lower than

0.05 % of the full scale (40 A)

4. The increase and decrease of positive sequence current

and of the neutral current Ir against the current

measured 2 cycles before must be lower than 0.1 A.

5. Positive sequence voltage V must exceed VFF.

6. Positive sequence voltage V % of VFF.

above 0.05 % of the full

above 0.1 A.

[4]

memorized 2 cycles before

must be lower than the 95

2. Minimum supervision voltage. If the voltage in phase B is lower than the setting, the pickup of the frequency derivative unit’s pickup is not allowed. When a voltage higher than the threshold appears, the relay waits 10 cycles before starting to execute the frequency gradient function.

To activate the fuse failure, this conditions must be kept during a programmable time (“Additional timing” in console, “Trip time” in the display (table 0 – protections-fuse failure). The function is activated until V1 voltage exceeds VFF.

If any function has picked up or during the relay’s waiting time, any of its protection units picks up, the fuse failure outputs is not activated because what the relays has detected is a fault and not a fuse failure situation.

The fuse failure pick up and trip activate if the digital input “Fuse failure” is activated, independently of the programmed time. Fuse failure will only deactivate if the inputs is deactivated.

Fuse failure may be used as a blocking signal for other functions.

Being Vr the single rated voltage

[4]

The options in bold correspond to the standard ratings.

⋅:= (V

63,5

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4.20. Teleprotection

4.20.1. Operation

Protection functions. Description and settings

It is based upon the use of teleprotection signals between both end terminals of the line. The eect upon the output relays’ operation is determined according to the signals given by the protection along with the signals given by the other terminals.

In these schemes, the zones 1, 2 and 3 (F, Forward) look forward and the zone 3R (R, Reverse) looks backwards. Zone 3 directionality (F) or (R) depends on the setting “torque control” (enabled or disabled) of the overcurrent instantaneous function (50), even if the function is enabled or not. If torque control is set as NO, the direction is forward.

Zone 1 units include the three overcurrent units (timed and the two instantaneous levels).

There are two basic types of schemes:

1. Locking scheme: The signal received indicates that the fault falls outside the zone to be protected. An overreach zone may trip if the lockout signal is not received after a given waiting period.

4.20.2. Setting range (6 tables)

2. Permission scheme: The signal received gives permission for an instantaneous trip within the overreach zone. Additional ECO and reverse direction blocking can be used.

The following protection schemes may be selected:

1. Permissive overreach

2. Permissive underreach

3. Directional Locking

4. Directional unlocking

Additionally, together with the schemes, the following can be selected:

1. ECO

2. Inverse direction locking

Setting Min Max Remarks Remarks

Protection scheme

Drop o time for input RTP Additional lockout time [s] Guard signal loss time [s] Enable ECO Minimum RTP time for ECO [s] Enable inverse direction lockout Inverse direction lockout time

Table 4.26. Setting range

0 1 0.01 0 1 0.01 0 0.15 0.01

0 9.99 0.1

1. Protection scheme: selects the type of scheme.

2. RTP (TRTP) drop time: time during which the

teleprotection reception input (RTP) remains stored.

3. Additional block-out time (TBLQ): waiting time of the block-out signal.

4. Guard signal loss time (TPSG): waiting time after receiving the channel loss input.

5. Enabling ECO: enables the ECO function.

6. Minimum RTP time for ECO (TMIN): time during which

the RTP input must be seen so that the ECO signal is activated.

Permissive overreach Permissive underreach Directional Locking Directional unlocking

YES/NO

7. Enabling of reverse direction block-out: it enables the storage of the reverse direction.

8. Reverse direction locking time (TZ3(R)MEM): reverse direction storage time.

The respective settings of teleprotection function and zones in the console are located in “Overcurrent prot. zones 2&3”, “Distance protection (trip logic)” and “Protection trip mask”. These settings are not accessible by keyboard/display.

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4.20.3. Protection trip mask (6 tables)

This setting can only be programmed using a PC, not by keyboard/display.

There are three types of mask for the protection functions that may cause “unconditional” “permissive” and “blocked” trip. This mask is only examined if “enable masks” setting is set as “YES”. If it is as “NO”, trips are allowed without taking into account the masks.

Trip causes set as “YES” at “unconditional” mask, gives a trip after expiring the trip time set, without taking into account the pilot wire scheme. Unconditional trip output and general trip output are activated.

Trip causes set as “YES” at “permissive” mask, gives a trip with acceleration by permissive logic only if permissive logics (Overreach, underreach or directional unlocking) are selected in trip logic settings. If a trip with acceleration is given, “pilot wire scheme trip” output will be activated and not general trip output.

4.20.4. Used signals

Trip causes set as “YES” at “blocked” mask, give a trip with acceleration by blocking logic, only if locking logics (Directional Locking) are selected in trip logic settings. If a trip with acceleration is given, “Pilot wire scheme trip” output will be activated and not general trip output.

You can simultaneously select for a function unconditional and permissive or unconditional and locking, in this way the trips of the units indicated in the permissive and blocked mask can be accelerated, if the adequate conditions are given.

It has to be taken into account that these masks are examined in the moment of giving the trip command; therefore it has no eect if the function is disabled by setting. Let’s suppose, for example that “neutral instantaneous in zones 1, 2 and 3” functions are set as “YES” in unconditional trip mask, but “neutral instantaneous” is set as “NO” in trip permission after closing, after second reclosure. During security time after second reclosure it will not trip by neutral instantaneous, because this command will not even be executed.

Below the meaning is explained:

ETP: Is called the teleprotection signal sent by a terminal. In any event, the ETP signal sent by a terminal is kept active for at least 50 ms, even though the reason that has caused its activation may disappear.

RTPE y RTP: Both are dierent, and therefore the RTPE is the input of the teleprotection received by a terminal; while the RTP follows the RTPE input in order to get activated, but it keeps the input stored for the TRTP time in order to be deactivated. If TRTP is adjusted equal to zero, then the RTP coincides with the RTPE input. In the teleprotection schemes, RTP is used.

Z3(R)MEM: Locking signal due to reverse direction change. See the section that corresponds to reverse direction locking.

Figure 4.24. Teleprotection reception

MINC trip: OR of enabled protection units for unconditional

trips that have trip. These units will trip after the time set, without taking into account the pilot wire schemes.

MPER pickup: OR of enabled protection units for permissive trips that have picked up. These units will trip if they have pickup when the teleprotection signal/RTP MEM) reach them. If they do not receive permission by this input, they do not trip.

MBLOQ pickup: OR of enabled protection units for blocked trips that have picked up. These units will trip, if they continue in pickup status, after exceeding the locking signal time (TBLQ) and the signal (RTP) has not arrived. If they were locked by this input, they would not trip.

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Protection functions. Description and settings

Notes

When “Directional Locking” scheme is set or “Inverse Directional Locking” function is enabled zone 3 must be set as REVERSE.

Trips, bay pilot wire schemes will reclose depending on the masks set for external protection

main pilot protection schemes

Permissive underreach (PUTT)

Pilot protection signal (ETP) is sent with the activation of zone 1.

It generates instantaneous pilot protection trip when receiving the teleprotection signal (RTP) along with the activation of a unit in zone 1, 2 or 3 (depending on the settings of trip mask) whenever memorized zone 3 (R) (Z3(R)MEM) is not activated. The Z3(R)MEM signal can be eliminated from the logic only by disabling the “Inverse direction locking” function. In this case the Z3(R)MEM would be continuously as 0.

The logic diagram of this function is:

Figure 4.25. Permissive underreach

Permissive overreach (POTT)

This scheme uses the teleprotection signal in the overreach zone 2 (or 1 or 3, depending on the mask) of the line. Instantaneous trip by teleprotection, when the teleprotection signal is received along with the activation of a unit in zone 2, whereas memorized zone 3 (Z3(R)MEM)

The logic diagram of this function is:

is not activated. Z3(R)MEM signal can be eliminated from the logic disabling “directional unlocking” function. In that case, Z3(R)MEM would be always at 0.

EPilot protection signal sending with the activation of units in zone 2, without backwards fault detection Z3(R)MEM.

Figure 4.26. Permissive overreach

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Directional Locking

Pilot protection instantaneous trip with activation of zone 2, if RTP signal is not received, once the locking time is elapsed and no fault is seen in zone 3 Z3(R)MEM.

Figure 4.27. Directional Locking

ETP locking signal is sent if the fault is seen backwards Z3(R) MEM.

The channel stop signal (STOP) is activated if a fault is detected forwards (Z1, Z2 or Z3) without seeing a fault in zone 3 Z3(R)MEM.

The logic diagram is shown below:

Directional Unlocking

Pilot protection instantaneous trip with activation of Z2, if the unlocking signal (RTP) is received or if only the channel loss signal (RPSG) is received during the guard signal loss time (TPSG). Since the moment in which the guard channel loss signal is activated a 150 ms time span is opened during which the trip can be given if the RPGS signal is activated during the programmed time (TPSG) without RTP reception. After these 150 ms the guard channel loss signal will have no eect over the pilot protection trip. Therefore, it is indispensable that the time TPSG is programmed to a value lower than 150 ms so that the loss signal guard activates the trip. Once the guard signal is recovered 200 ms will be waited before starting again the aforementioned logic in case the guard channel is lost again.

The ETP output is the same as in the POTT scheme. The Z3(R)MEM signal can be eliminated from the logic only by disabling the “Inverse direction locking” function. In this case the Z3(R)MEM would be continuously as 0.

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Figure 4.28. Directional unlocking

Additional pilot protection schemes

Reverse direction locking

It is used on double-circuit lines in order to prevent the immediate tripping of a protection that is seeing a fault backwards (and the carrier signal, which is sent to it by the forward protection) when the power ow direction changes (due to opening of the parallel line breaker). It delays the pilot protection tripping for a few cycles in order to give the remote terminal time to remove the permission (ETP) signal after the change of ow direction due to the breaker opening. The Z3 signal is used with a storage time (Z3(R) MEM), thereby obtaining the Z3(R)MEM signal to be used in the rest of the schemes, as shown in the following gure.

The gure shows a ow scheme when the fault occurs and when the breaker is opened. If this scheme is not used, the eect could be the following:

When the failure occurs, terminal C sees it in zone 1, D in zone 1 or 2 according to the length, B backwards and A in zone 2. In this situation, C opens the breaker and sends the ETP signal to D. A likewise sends ETP to B.

When the breaker is opened and the ow changes, A would see the fault backwards and B would see it in zone 2 or 3 (F), whereby it could trip before A removes the RTP signal.

Figure 4.29. Reverse Directional Locking

Figure 4.30. Flow Change due to breaker opening

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ECO

It is used in the permissive schemes (overreach, underreach and directional unlocking).

The pilot protection instantaneous trip is the one corresponding to the selected scheme.

Figure 4.31. ECO logic

The teleprotection signal is sent with either of the following conditions:

1. According to the selected scheme

2. If the RTP is received and the fault is not detected either

forward or backward.

3. During a minimum programmable time or the breaker is open. The ECO signal only provides a pulse of 50 ms.

4.21. Thermal image

4.21.1. General description

This function calculates a temperature according to the recent and present load conditions of the protected unit. This temperature is visualized in the display in % with respect to the trip value; when reaching the programmed value an alarm relay is activated (if there is any programmed) and when reaching the 100 % the thermal image trip relay (if the unit is enabled) and the corresponding signaling are activated. Once the unit has tripped by this unit, the relay does not dropout while the calculated temperature is above the 75 % and the rest of the locking conditions are fullled. The calculated temperature can be reset through the keyboard/display (accessing through “↓” to TEMP=0? and pushing “↓” during 2 seconds) or through console command.

The time to trip is given by the following curves, which give the time according to the ratio between the current and the programmed rated current, and the programmed cooling constant. According to the following formula (starting from temperature 0):

Being

t: trip time

τ1: cooling constant

I: average current I0: programmed rated current

Once it has tripped, there is another programmable time constant for the cooling.

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4.21.2. Settings

Setting Min Max Step Notes

Enable Heating time constant [min] Cooling time constant [min] Threshold alarm [%] Threshold restore [%] Rated current [A]

Table 4.27. Settings

4.21.3. Trip times

Protection functions. Description and settings

YES/NO 3 60 1 3 180 1

80 100 1 50 99 1

0.1 200.0 0.01

Figure 4.32. Trip times

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4.21.4. Heating curves

The heating curve is calculated from the following formula:

Being Tf = nal temperature Ti = initial temperature t = time

τ1 = Heating time constant

For Ti = 0 the formula is reduced

As in

The heating curve is:

The next gure gives as an example, the heating curves, with 3 min time constant, for I/I0 = 1 and for I/I0 = 2.

4.21.5. Cooling curves

The cooling curve is calculate from the following:

Being: Tf=nal temperature Ti=initial temperature t=time τ2=cooling time constant

Starting from Ti = 1 (100 in %), tripping temperature, in order to arrive to a nal temperature of Tf = 0 (that is with current I = 0), the formulae is reduced to:

Figure 4.33. Heating curves

Example: Cooling curve with 3 min constant.

Figure 4.34. Cooling curves

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Protection functions. Description and settings

Combined examples cooling and heating:

1. Let’s suppose that during 200 s it is heated with I/I 1, the next 200 s (without tripping) with I/I0 = 2, and starting from there it goes back indenitely to I/I0 = 1 (both time constants of 3 min):

2. Lets suppose that during 200 s it is heated with I/I0 = 0.5, then with I/I0 = 1.5 until reaching 100 %, where it trips,

and starting from there it is cooled with I/I0 = 0 (both time constants of 3min).

Figure 4.36. Combined examples cooling and heating

Figure 4.35. Combined examples cooling and heating

4.22. Field loss protection

4.22.1. Overview

Field loss protection (generator excitation), with the following characteristics (function 40):

1. 2 MHO tripping areas with independent settings.

4.22.2. General settings range

Setting Min Max Step Notes

Enable Minimum voltage pickup Directional unit angle

Table 4.28. General settings range

The directional unit angle allows to block the protection in a specic direction.

10.0 65.0 0.1 0 180 1 Clockwise

2. 1 directional unit common to both areas.

3. 1 undervoltage unit common to both areas. Each area

can be enabled independently.

YES/NO

The protection’s impedance value is calculated with the positive sequence current and voltage.

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4.22.3. MHO area settings range

Setting Min Max Step Notes

Z1A impedance setting (oset) [Ω] Z1B impedance setting (diameter) [Ω] Area 1 undervoltage monitoring Area 1 alarm time setting [s] Area 1 tripping time setting [s]

Table 4.29. MHO area settings range

The MHO2 area has the same settings range as the MHO1.

Settings Z1A and Z1B delimit the MHO1 tripping area (settings Z2A and Z2B delimit the MHO2 area). Setting Z1A represents the oset (in ohms) of the area’s top. This value can be positive (see Z1A in gure 1) or negative (see Z2A for the MHO2 area). Setting Z1B represents the diameter of the MHO1 area.

The protection operates dierently, depending on whether the area is in undervoltage conditions or not. For one area to be in undervoltage conditions, one of the following circumstances must be met:

-20.0 20.0 0.1

0.0 120.0 0.1 YES/NO

0.0 10.0 0.1

0.00 10.00 0.01

Angle

1. That the measurement in any of the voltage phases is below the undervoltage start value.

2. That the area’s undervoltage monitoring setting is disabled.

When the generator enters one of the MHO areas a timer is activated. If the area is not in undervoltage conditions the area’s alarm timer is activated. However, if the area is in undervoltage conditions, the tripping activates the area’s timer. The latest timer must be set to a value below the other timer’s. The reason for this is that in undervoltage conditions the fault must be cleared quickly in order to avoid the electrical system becoming unstable, since the generator has few possibilities to recover. Once the timer’s time has elapsed, the corresponding outputs are activated.

Figure 4.37. MHO area settings

Field loss signals:

1. MHO1 alarm

2. MHO2 alarm

3. MHO1 alarm

4. MHO2 alarm

5. MHO1 undervoltage

6. MHO2 undervoltage

The transmitted measurement is as follows:

Byte

Nr.

Table 4.30. transmitted measurement

Format Specication Data

Word PROCOME Vr*1.2*20

Impedance

module

It is the voltage (1.2*Vr) dividided by the minimum current. To make calculations for the impedances, the positive sequence current must be equal or higher than a minimum value set to 0.05 A. This way, the maximum impedance corresponds to the quotient between the maximum voltage and the minimum current.

100

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