Bender EDS3090, EDS3096, EDS3092 User Manual

Download

Page 1

Manual

EDS3090

EDS195P

ISOSCAN®



ARM



INF

R ESE

ESC

…91, …92, …96

Portable equipment for insulation fault location for energised and deenergised AC and DC systems Software version: D399 V2.0

EDS309x_D00012_03_M_XXEN/11.2014

Page 2

Bender GmbH & Co. KG

P.O.Box 1161 • 35301 Grünberg • Germany Londorfer Straße 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-mail: info@bender.de • www.bender.de

Photos: Bender archives and bendersystembau archives.

Reprinting only with permission

of the publisher.

Subject to change!

Page 3

Table of Contents

1. How to get the most out of this manual ............................................................. 7

1.1 How to use this manual ......................................................................................................... 7

1.2 Explanations of symbols and notes ................................................................................... 7

1.3 Overview of chapters .............................................................................................................. 8

2. Safety instructions .................................................................................................. 9

2.1 Intended use .............................................................................................................................. 9

2.2 Device-specific safety instructions .................................................................................... 9

2.3 General safety instructions ................................................................................................ 10

2.4 Qualified personnel .............................................................................................................. 10

3. System description .............................................................................................. 11

3.1 System components ............................................................................................................11

3.1.1 Overview of system components ................................................................................... 11

3.1.2 Insulation fault location equipment type list ............................................................. 12

3.1.3 Accessories .............................................................................................................................. 13

3.2 Function of the system components ............................................................................. 14

3.2.1 Locating current injector PGH18… ................................................................................ 14

3.2.2 Insulation fault locator EDS195P ..................................................................................... 14

3.2.3 Measuring clamps ................................................................................................................. 14

3.2.4 Coupling device AGE185 .................................................................................................... 15

3.3 Operating principle for insulation fault location (IΔL) ............................................. 15

3.3.1 Schematic diagram EDS system ...................................................................................... 16

3.3.2 Test cycle .................................................................................................................................. 16

3.3.3 Definitions ............................................................................................................................... 17

3.3.4 Currents in the EDS system ............................................................................................... 17

3.4 Operating principle for residual current measurement (IΔn) ............................... 18

4. Considerations prior to use ................................................................................ 19

4.1 How does the equipment for insulation fault location work ................................ 19

4.2 Requirements for reliable insulation fault location .................................................. 20

4.3 Reduced locating current .................................................................................................. 22

4.4 Response sensitivity characteristics of the EDS195P ............................................... 22

4.4.1 Response characteristics for main circuits in 3AC systems .................................... 23

EDS309x_D00012_03_M_XXEN/11.2014

Page 4

Table of Contents

4.4.2 Response characteristics for main circuits in AC systems ....................................... 24

4.4.3 Response characteristics for main circuits in DC systems ....................................... 24

4.4.4 Response characteristics for control circuits in AC systems ................................... 25

4.4.5 Response characteristics for control circuits in DC systems .................................. 25

5. Connecting the locating current injector ....................................................... 27

5.1 Disconnecting insulation monitoring device .............................................................. 27

5.2 Locating current injector in an electrically isolated IT system .............................. 27

5.3 Connection to a live IT system .......................................................................................... 28

5.4 Connection to a PV system ................................................................................................ 29

6. Operation ............................................................................................................... 31

6.1 Short description of insulation fault location (EDS mode) ..................................... 31

6.1.1 Commissioning the PGH18… for locating current injection ................................. 31

6.1.2 Insulation fault location using EDS195P ....................................................................... 31

6.2 Detailed description of insulation fault location ........................................................ 31

6.3 Description of a residual current measurement ......................................................... 31

6.4 Displays and controls on the PGH18… ......................................................................... 32

6.5 Displays and controls on the EDS195P .......................................................................... 33

6.6 Operating the EDS195P ....................................................................................................... 34

6.6.1 Switching on and off the device ...................................................................................... 34

6.6.2 Changing the measuring clamp ....................................................................................... 35

6.6.3 Improved legibility due to display lighting .................................................................. 35

6.6.4 Changing between insulation fault location IΔL and

residual current measurement IΔn operating modes .............................................. 35

6.6.5 Quickly checking the response values for IΔL and IΔn ............................................ 35

6.6.6 Checking Info menu ............................................................................................................. 35

6.6.7 Significance of the display elements .............................................................................. 36

6.7 Standard displays on the EDS195P ................................................................................. 36

6.7.1 EDS measurement (IΔL) ....................................................................................................... 36

6.7.1.1 Standard display if there is no cable to be measured in the clamp ............. 36

6.7.1.2 Standard display for EDS measurement (IΔL) with cable in the clamp ....... 37

6.7.1.3 Standard display for measuring faults or pauses between changes in polarity

of the measuring pulse ................................................................................................. 37

6.7.2 RCM measurement (IΔn) ..................................................................................................... 37

6.7.2.1 Standard display for RCM measurement (IΔn) with cable in the clamp ..... 37

6.8 Alarms during EDS measurement or RCM measurement ....................................... 37

6.9 Indication of device and measuring errors .................................................................. 38

6.10 Factory settings EDS195P (state as supplied) .............................................................. 38

6.11 Menu structure ....................................................................................................................... 39

EDS309x_D00012_03_M_XXEN/11.2014

Page 5

Table of Contents

6.11.1 Navigating in the menu ...................................................................................................... 40

6.11.2 Menu item: Settings ............................................................................................................. 40

6.11.3 Menu item: System .............................................................................................................. 41

6.11.4 Menu item: Harmonics ........................................................................................................ 41

6.11.5 Menu item: IΔL alarms ......................................................................................................... 41

6.11.6 Menu item: IΔn logger ........................................................................................................ 42

6.12 Practical usage ....................................................................................................................... 42

6.12.1 Insulation fault location in a system without a permanently installed EDS

6.12.2 Insulation fault location in a system with a permanently installed EDS system ..

6.12.3 Insulation fault location in diode-decoupled DC systems ..................................... 47

6.12.4 Usage of the EDS195P as a residual current meter ................................................... 49

6.12.5 Indication of the harmonics during residual current measurement .................. 50

6.13 Coupling device AGE185 for higher system voltages ............................................. 51

6.14 Power supply for the EDS195P ......................................................................................... 52

6.14.1 Displaying charge state ...................................................................................................... 52

6.14.2 Changing batteries ............................................................................................................... 52

6.14.3 Power supply unit supplied .............................................................................................. 52

system ....................................................................................................................................... 42

7. Technical specifications ...................................................................................... 53

7.1 Technical specifications for the system EDS309… ................................................... 53

7.2 Technical specifications PGH18… .................................................................................. 53

7.3 Technical specifications EDS195P ................................................................................... 54

7.4 Technical specifications measuring clamps ................................................................ 55

7.5 Technical specifications AGE185 ..................................................................................... 56

7.6 Standards ................................................................................................................................. 56

7.7 Dimension diagrams ............................................................................................................ 57

7.8 Status word ............................................................................................................................. 58

7.9 Ordering data including accessories ............................................................................. 59

7.10 Component list ...................................................................................................................... 60

8. Frequently Asked Questions .............................................................................. 61

INDEX ...........................................................................................................................63

EDS309x_D00012_03_M_XXEN/11.2014

Page 6

Table of Contents

EDS309x_D00012_03_M_XXEN/11.2014

Page 7

1. How to get the most out of this manual

DANGER

WARNING

CAUTION

1.1 How to use this manual

This operating manual describes the basic principles of insulation fault location as well as connecting and operating an item of portable equipment for insulation fault location. It is designed for qualified electricians, and in particular for those designing, installing and operating electrical equipment.

Please read this detailed operating manual and the enclosed sheet entitled "Important safety instructions for Bender products" prior to using the EDS3090. This document must be kept in easy reach in the case.

If you have any questions, please do not hesitate to contact us. Please contact our Technical Sales Department. We are also happy to provide on-site service. Please contact our Service Department for more information. Service helpline: 0700-BenderHelp (telephone and fax) Carl-Benz-Strasse 10 • 35305 Gruenberg • Germany Tel: +49 6401 807-760 • Fax: +49 6401 807-629 E-mail: info@bender-service.com • www.bender.de

1.2 Explanations of symbols and notes

To make it easier for you to understand and revisit certain sections of text and instructions in the manual, we have used symbols to identify important instructions and information. The meaning of these symbols is explained below:

The signal word indicates that there is a high risk danger that will result in electrocution or serious injury if not avoided.

This signal word means that there is a medium risk of danger that can lead to death or serious injury, if not avoided.

This signal word indicates a low level risk that can result in minor or moderate injury or damage to property if not avoided.

This symbol denotes information intended to assist the user to make optimum use of the product.

EDS309x_D00012_03_M_XXEN/11.2014

Page 8

How to get the most out of this manual

1.3 Overview of chapters

1. How to get the most out of this manual: This chapter provides information about using this documentation.

2. Safety instructions: This section provides information about risks affecting installation and operation.

3. System description: In this chapter you will find an overview of the system components, a description of their function and the basic principles of insulation fault location. The principle of residual current measurement is described in the final section.

4. Considerations prior to use: This chapter describes the practical aspects of insulation fault location and provides numerous characteristic curves for assessing the response values to be set.

5. Connecting the locating current injector: The connection of the PGH18… to a system to be tested is described here.

6. Operation: This chapter contains a description of the graphical user interface on the EDS195P. There is also an illustration of the menu structure as well as illustrations of the various standard displays. You will also find information of the supply of power to the EDS195P here.

7. Technical specifications: Along with tabular data this chapter contains information on standards and the dimensions of the system components.

8. Frequently Asked Questions: Use this chapter to quickly identify and rectify any malfunctions that occur.

9. INDEX: Use the index to quickly find the desired keywords.

EDS309x_D00012_03_M_XXEN/11.2014

Page 9

2. Safety instructions

CAUTION

2.1 Intended use

The portable insulation fault location system EDS309… is used to locate insulation faults in IT systems. All variants are suitable for the measurement of residual currents in TN and TT systems. The EDS3096PG is particularly suitable for insulation fault location in electrically isolated systems.

Please observe the limits on the area of application stated in the technical specifications, as well as the measuring categories for the measuring clamps used. If, in the specific case, measuring current transformers other than the measuring clamps supplied are used with the EDS195P, attention is to be paid to ensuring the connection wires and transformer have an adequate nominal insulation voltage (overvoltage category, see Technical specifications) Use which deviates from or is beyond the scope of these technical specifications is considered noncompliant.

System interference and high system leakage capacitances can degrade the accuracy of the measurement.

2.2 Device-specific safety instructions

Hazard due to excessively high locating current or excessively high locating voltage!

An excessively high PGH18… locating current may damage sensitive loads (e.g. in control circuits) or trigger unintended switching processes. For this reason select a lower locating current for these systems (1 or 10 mA). For instance it is only allowed to use the EDS3091 or EDS3091PG in systems with programmable logic controllers (PLCs).

The locating voltage of DC 50 V produced by the locating current injector PGH186 can cause interference at sensitive system components. In case of doubt, contact Bender.

The locating current from the PGH185 or PGH186 can cause residual current devices to trip. The locating current is limited to maximum 25 mA (or 10 mA), however 30 mA residual current devices may trip, for instance, between 15 and 30 mA.

It is necessary to aim for the best possible conductor symmetry in the measuring clamp. Otherwise the measuring clamp may go into saturation due to an excessively high load current and cause an alarm I

>10A.

EDS309x_D00012_03_M_XXEN/11.2014

Page 10

Safety instructions

2.3 General safety instructions

Along with this operating manual, the enclosed "Important safety instructions for Bender products" form part of the documentation for this device.

2.4 Qualified personnel

Only a qualified electrician is allowed to use the EDS3090 devices. The electrician should be familiar with the assembly, commissioning and operation of the equipment and have undergone appropriate training. The person using the EDS system must have read this manual and understood all the instructions relating to safety.

EDS309x_D00012_03_M_XXEN/11.2014

Page 11

3. System description

PGH186

100mA

10mA

25mA

Imax

L1(+)

L2(-)

3(N)AC 0...575V mit/with 500...790V DC 0...504V AGE185 400...960V

PSA3052

/ C

bla

tt / D

ata

t : T

132

sse

r / D

er : 5

rt.-N

r. / A

rt.-n

. : B

0 6

. 1 A

III

/ 0

,1 m

3.1 System components

On page 60, you will find a detailed overview of the scope of delivery of the EDS309x versions. The following illustration provides a choice of the possible components.

3.1.1 Overview of system components

The primary task of the EDS309… is insulation fault location in IT systems. For this purpose the individual components of the EDS309… are used in combination.

EDS195P

ILI

ISOSCAN®

ALARM

I n I

ESC

HOLD

INFO

RESET

Aluminium case with handle

Measuring clamp PSA3020 (main circuits) or PSA3320 (control circuits)

Clamp inside diameter 20 mm

Locating current injector PGH18…

For generating a locating current for insulation fault location

Insulation fault locator EDS195P

For connecting measuring clamps and for finding insulation faults

Measuring clamp PSA3052 (main circuits) or PSA3352 (control circuits)

Clamp inside diameter 52 mm

EDS309x_D00012_03_M_XXEN/11.2014

Page 12

System description

3.1.2 Insulation fault location equipment type list

It is possible to undertake a residual current measurement in TT and TN systems (earthed systems) using all the device variants listed below. The following overview describes which measuring tasks can be undertaken with which models:

Equipment for insulation fault location in main circuits

1. Permissible system voltage in the main circuits:

– Insulation fault location in IT systems up to AC 42…460 Hz, 20…575 V and DC 20…504 V

– Insulation fault location using AGE185 up to AC 42…460 Hz, 500…790 V and DC 400…960 V

EDS3090:

 Can be used in IT systems in which a locating current injector PGH471 or an IRDH575 is already

installed.

EDS3090PG:

 Can be used in IT systems in which neither a locating current injector PGH471 nor an IRDH575 is

already installed.

 Supply voltage for the locating current generator PGH185 supplied:

AC 50…60 Hz, 230 V

EDS3090PG-13:

 Can be used in IT systems in which neither a locating current injector PGH471 nor an IRDH575 is

already installed.

 Supply voltage for the locating current generator PGH185-13 supplied:

AC 50…60 Hz, 90…132 V

2. Permissible system voltage in the main circuits:

– Insulation fault location in IT systems up to AC 42…460 Hz, 0…575 V and DC 0…504 V

– Insulation fault location using AGE185 up to AC 42…460, Hz 500…790 V and DC 400…960 V

EDS3096PG:

 Can be used in IT systems in which neither a locating current injector PGH471 nor an IRDH575 is

already installed.

 Supply voltage for the locating current generator PGH186 supplied:

AC 50…60 Hz, 230 V

 Insulation fault location, also in IT systems electrically isolated on all poles

EDS3096PG-13:

 Can be used in IT systems in which neither a locating current injector PGH471 nor an IRDH575 is

already installed.

 Supply voltage for the locating current generator PGH186-13 supplied:

AC 50…60 Hz, 90…132 V

 Insulation fault location, also in IT systems electrically isolated on all poles

EDS309x_D00012_03_M_XXEN/11.2014

Page 13

System description

EDS3096PV:

 Applicable in PV systems without a locating current injector installed.

 Supply voltage for the delivered locating current injector PGH186: AC 50…60 Hz, 230 V.

 Insulation fault location, also in IT systems disconnected on all poles or in de-energised IT sys-

tems.

Equipment for insulation fault location in control circuits

Permissible system voltage in the control circuits: Insulation fault location in IT systems up to AC 42…460 Hz, 20…265 V and DC 20…308 V.

EDS3091:

 Can be used in IT systems in which a locating current injector PGH473 or an IRDH575 is already

installed.

EDS3091PG:

 Can be used in IT systems in which neither a locating current injector PGH473 nor an IRDH575 is

already installed.

 Supply voltage for the locating current generator PGH183 supplied:

AC 50…60 Hz, 230 V

EDS3091PG-13:

 Can be used in IT systems in which neither a locating current injector PGH473 nor an IRDH575 is

already installed.

 Supply voltage for the locating current generator PGH183-13 supplied:

AC 50…60 Hz, 90…132 V

Equipment for insulation fault location in main circuits and control circuits

EDS3092PG:

 Contains the components and combines the features of the EDS3090PG and EDS3091PG

3.1.3 Accessories

You will find information on the standard accessories as well as on optional accessories in the ordering data on page 59 and in the component list on page 60.

Only use the components supplied by us on working with the EDS309…. Commercially available measuring clamps are not allowed to be used! This statement also applies to measuring clamps or measuring current transformers from the Bender range that are not expressly intended to be used with the EDS309…. Along with the measuring clamps supplied, it is allowed to connect to the EDS195P the following measuring current transformers from the Bender series: WF… W… /WR… /WS… W…-8000/WS…-8000 Series W…AB current transformers cannot be used!

For series WF… current transformers you will need a BNC to PS2 adapter cable, see page 59.

EDS309x_D00012_03_M_XXEN/11.2014

Page 14

System description

3.2 Function of the system components

3.2.1 Locating current injector PGH18…

The PGH18… generates a defined locating current. The magnitude of the current is dependent on the insulation fault present and the system voltage.

 The PGH185 or PGH186 limits the locating current to maximum 25 mA or maximum 10 mA

depending on the switch setting.

 The PGH183 limits the locating current to maximum 2.5 mA or maximum 1 mA depending on

the switch setting.

 The PGH186 applies the locating current in electrically isolated IT systems or in IT systems with

a system voltage < 50 V using an integrated voltage source (DC 50 V). In IT systems with a system voltage > 50 V the existing voltage in the system is used to drive the locating current.

3.2.2 Insulation fault locator EDS195P

The insulation fault locator EDS195P has the following measuring functions:

 Insulation fault location I

– Either as a component of the portable equipment for insulation fault location EDS309…

– Or as an additional insulation fault locator in permanently installed equipment for insulation

fault location with IRDH575 or PGH1… as well as EDS46…/49….

 Residual current measurement I

value range can be found in table 3.1 on page 14.

(EDS mode) for use in IT AC or DC systems:

ΔL

(RCM mode) for usage in TN or TT AC systems. The response

Δn

Response value

The response value is defined by the sensitivity of the EDS195P. This value can be set in both DC and AC and 3AC IT systems as an arithmetic mean in accordance with Tabelle 3.1 auf Seite 14. System interference and high system leakage capacitances can degrade the accuracy.

3.2.3 Measuring clamps

Measuring clamps measure the locating current or the residual current. They have a test lead approx. 2 m long. The connection to the EDS195P is made using a BNC connection. The following table summarises the most important data for the usage of the different measuring clamps.

IT system

TN/TT system

Tab. 3.1: Measuring clamps and response values for the EDS195P

Main circuit

(EDS3090…, 3092…, 3096…)

Measuring

clamps

Measuring range 2…50 mA 0.2…5 mA

Response value

Measuring

clamps

Measuring range 5 mA…10 A 2 mA…2 A

Response value 10 mA…10 A 5 mA…1 A

PSA3020, PSA3052, PSA3165 PSA3320, PSA3352

2…10 mA,

PSA3020, PSA3052, PSA3165 PSA3320, PSA3352

±30% / ±2 mA

Control circuit

(EDS3091…)

0.2…1 mA, ±30 % / ±0.2 mA

If measuring current transformers are used instead of measuring clamps, you will need the adapter supplied: BNC/4-mm connector. See table on page 60.

EDS309x_D00012_03_M_XXEN/11.2014

Page 15

System description

3.2.4 Coupling device AGE185

The coupling device AGE185 expands the nominal voltage range of the equipment for insulation fault location EDS309…. It enables the equipment to be connected to system nominal voltages up to AC 790 V or DC 960 V.

3.3 Operating principle for insulation fault location (IΔL)

On the occurrence of the first insulation fault in IT systems a residual current flows that is essentially defined by the system leakage capacitances. The basic concept of fault location is therefore to briefly close the fault circuit using a defined resistance. With this principle a locating current is provided by the system voltage and this locating current contains a signal that can be evaluated.

The locating current is generated periodically by the locating current injector PGH18… (part of the EDS309…PG system). The locating current can also be generated by an IRDH575 or a locating current injector PGH47…. The amplitude and duration of the locating current is limited. During this process the system conductors are alternately connected to earth via a defined resistance. The locating current produced as a result is dependent on the magnitude of the insulation fault present and the system voltage. For example the locating current on the EDS3090 is limited to maximum 25 mA; with the setting

= 10mA it is limited to 10 mA. During planning it is to be ensured that there are no system com-

max

ponents in which this locating current could cause a reaction involving damage in unfavourable circumstances.

The locating current pulse flows from the locating current injector through the live conductors to the insulation fault by the shortest route. From there it flows via the insulation fault and the earth cable (PE cable) back to the locating current injector. This locating current pulse is detected by the measuring clamps or measuring current transformers in the insulation fault path and is indicated by the insulation fault locator EDS195P connected.

You must ensure that all live conductors are routed through the measuring clamp. Do not route any protective earth conductors or screens on screened cables through the measuring clamp! Commercial measuring clamps are not suitable for the EDS309… and must not be used. Only if these notes are observed will you obtain a correct measurement result. You will find additional information in our technical information Techinfo08 "Transformer installation".

EDS309x_D00012_03_M_XXEN/11.2014

Page 16

3.3.1 Schematic diagram EDS system

IT-System

PSA...

EDS195P

PGH...

L2(L-)

L1(L+)

EDS Start

Position PGH...

12331

2 sec

4 sec

2 sec

4 sec

System description

EDS195P Insulation fault locator

PGH… Locating current injector

IT system voltage

PSA… Measuring clamp

Insulation fault

PE Protective earth conductor

3.3.2 Test cycle

The locating current pulse cycle has a duration of 6 seconds. The PGH… sends alternating positive and negative locating current pulses. The sketch below shows the test cycle of the PGH… with the different switch settings (1, 2, 3) on the device, see schematic diagram above.

EDS309x_D00012_03_M_XXEN/11.2014

Page 17

System description

3.3.3 Definitions

= Locating current that flows through the locating current injector while the fault location

is running (EDS mode).

= Locating current measured by the insulation fault locator (EDS mode).

ΔL

= Residual current produced by an insulation fault (RCM mode).

Δn

3.3.4 Currents in the EDS system

As an addition to the schematic diagram on page 16, here the path of the residual currents and the locating current is shown:

.............

. .. .. ..

ΔL

E-V

E-N

F-V

F-N

IT-System

PSA...

Δn

IΔL

PGH...

F-V

EDS195P

E-N

E-V

Locating current circuit due to the insulation fault R

Residual currents I

(example)

Δn

F-N

Locating current measured by the EDS195P

Upstream capacitances, system leakage capacitances upstream of the measuring current transformer

Downstream capacitances, system leakage capacitance downstream of the measuring current transformer

Insulation fault upstream of measuring current transformer

Insulation fault downstream of the measuring current transformer

The following residual currents flow through the measuring current transformer of the EDS195P:

 The locating current caused by the insulation fault R

 The residual currents I

, or that are caused by R

E-N

 Transient leakage currents that are caused by switching and control activities in the system

 Low-frequency leakage currents generated by the use of converters

EDS309x_D00012_03_M_XXEN/11.2014

F-N

that flow through the system leakage capacitances C

Δn

F-V

and R

F-N

E-V

and

Page 18

System description

3.4 Operating principle for residual current measurement (IΔn)

In the RCM mode the EDS309… operates based on the principle of residual current measurement. In this case only the insulation fault locator EDS195P and a measuring clamp are used, the locating current injector PGH18… is not required.

As per Kirchhoff's law the sum of the currents flowing into any node in a network is equal to the sum of the currents flowing out.

EDS195P

ILI

ISOSCAN®

ALARM

ESC

INFO

HOLD

RESET

Abb. 3.1: The two currents Izu and Iab have the same magnitude, however their signs are different,

such that the sum of the two currents is zero. The EDS195P detects this situation, there is no message.

EDS195P

ILI

ISOSCAN®

ALARM

ESC

INFO

HOLD

RESET

Abb. 3.2: Part of the current flows through an insulation fault R

. The sum of the two currents

is no longer zero. As soon as the residual current reaches or exceeds the response value

there is an alarm message on the EDS195P.

In the RCM mode it is possible to measure residual currents in single and threephase TT or TN systems. If the system leakage capacitance ahead of the measuring clamp is sufficiently high, the EDS195P can also be used for measurements in single and three-phase IT systems. The suitability of the device is to be checked in the specific case.

EDS309x_D00012_03_M_XXEN/11.2014

Page 19

4. Considerations prior to use

PGH18...

EDS195P

PSA...

4.1 How does the equipment for insulation fault location work

The equipment comprises a locating current injector PGH18… and an insulation fault locator EDS195P with measuring clamp PSA3… connected.

Functional sequence

 Insulation fault location is started by activating the locating current injector PGH18…

 The locating current injector PGH18… briefly connects the live conductors to earth with cur-

rent limiting.

 The insulation fault creates a closed circuit in which a locating current I

tem voltage flows. The locating current is limited to a maximum value of 25 mA or 10 mA (PGH185/186), 2.5 mA or 1 mA (PGH183).

 The locating current flows from the locating current injector via the live cables, the insulation

fault R

 The locating current signal can be measured using measuring clamp placed around the cables

in the outgoing circuit from the distribution system and evaluated by the insulation fault locator EDS195P.

 The location of the fault can be determined exactly by moving along the cable with the measur-

ing clamp.

and the earth cable (PE cable) back to the locating current injector.

dependent on the sys-

EDS309x_D00012_03_M_XXEN/11.2014

Abb. 4.1: EDS operating principle

Page 20

Considerations prior to use

4.2 Requirements for reliable insulation fault location

The insulation fault locator has the task of locating the insulation fault R uring clamp. For this purpose, it must reliably detect the locating current caused by the insulation fault. Requirements:

 The insulation fault must be present for at least 30s

 The locating current is in the following ranges:

– Main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3092PG,

EDS3096PG-13, EDS3096PV, EDS3096PG: I

– Control circuits with EDS3091, EDS3091PG, EDS3091PG-13, EDS3092PG:: I

 The upstream capacitances C

must be at least as large as the downstream capacitances C

E-V

4.3 Reduced locating current

Particularly in DC control voltage systems in the power station and public utility sector there may be relays or PLCs installed that switch at relatively low currents. In such a case the I

switch on the

max

PGH18… must be placed in the 10 mA or 1 mA position. The switch's label, e.g. 10 mA or 25 mA, defines the magnitude of the locating current only for DC systems. For AC locating currents see "chapter 4.4". It must also be checked prior to a measurement with reduced locating current (switch position 10 mA or 1 mA) whether sensitive system components could be triggered unintentionally.

4.4 Response sensitivity characteristics of the EDS195P

The type of system, system voltage, system frequency, system leakage capacitance and locating current all affect the EDS system's response sensitivity. The magnitude of the locating current can be set on the locating current injector PGH18…. A reduced locating current is produced in AC systems depending on the type of system. In comparison to DC systems the related factor in AC systems is 0.5 and in 3AC systems 0.67. For this reason set the response value on the EDS195P for usage in AC and 3AC systems as follows:

Settings Main circuit Control circuit PV system

Equipment for insulation fault location

EDS195P setting: select the measuring clamp type using button

PGH18… setting: locating current I

Response range EDS195P Menu item 2.2: I

PGH18… setting: reduced locating current I

Response range EDS195P with reduced locating current Menu item 2.2: I

ΔL ALM

EDS3090

EDS3090PG

EDS3090PG-13

EDS3092PG EDS3096PG

PSA3020, PSA3052,

PSA3165

Measuring range

2…50 mA

25 mA

(PGH185/186)

2…10 mA 0,2…1 mA 2…10 mA

10 mA

(PGH185/186)

2…5 mA 0,2…0,5 mA 2…5 mA

EDS3091

EDS3091PG

EDS3091PG-13

EDS3092PG

PSA3320, PSA3352

Measuring range

0,2…5 mA

2,5 mA

(PGH183)

1 mA

(PGH183)

EDS3096PV

PSA3052

Measuring range

2…50 mA

25 mA

(PGH186)

10 mA

(PGH186)

Tab. 4.1: Settings for the EDS195P and the PGH18…

For the response value setting see menu item “2. Settings/ 2. IΔL) on page 39. The response values are given as characteristics that can have a maximum error of ±30 %. Measuring clamp tolerances are included here. The characteristics apply at the related nominal voltage stated. In case of variation in the nominal voltage, a proportional change in the response values is to be expected. In case of system voltages that change dynamically or in case of superimposed DC currents and AC currents that vary from the system frequency (e.g. due to frequency converters), response values outside the ranges shown may result.

EDS309x_D00012_03_M_XXEN/11.2014

Page 23

Considerations prior to use

100

120

140

160

0 50 100 150

[k]

Ce[uF]

3AC230V

2mA

5mA

10mA

100

120

0 20406080

[k]

Ce[uF]

3AC400V

2mA

5mA

10mA

100

120

140

160

0 102030405060

[k]

Ce[uF]

3AC500V

2mA

5mA

10mA

100

150

200

250

0 1020304050

RF[k]

Ce[uF]

3AC690V

2mA

5mA

10mA

The characteristics below enable you to simply determine a practical response value for the EDS195P. If the insulation monitoring device in a monitored system indicates an alarm message, manual insulation fault location can be started. Proceed as follows:

1. Select the characteristics (3AC, AC, DC) that are appropriate for your type of system.

2. From these, select the diagram that best matches the desired system voltage.

3. Calculate the expected leakage capacitance C devices in the IRDH… series can indicate the magnitude of the leakage capacitance (press INFO button). Apply this value to the diagram in the form of a vertical line. If it is not possible to check the capacitance, the highest capacitance in the related diagram is to be taken.

4. The characteristics shown indicate the response sensitivity of the EDS195P in main circuits for 2 mA, 5 mA and 10 mA and in control circuits for 0.2 mA, 0.5 mA and 1 mA. Values above the related curve cannot be measured. Values and characteristics that lie in the area between the upper and lower characteristic can be estimated approximately using the existing characteristics.

5. Set the required response value, on the left of the line from point 3., on the EDS195P.

6. The characteristics for DC 24 V and AC 42 V do not apply to the EDS3096, as the locating current generator operates with a locating voltage of DC 50 V. For this reason the curves for DC 60 V and AC 110 V apply at these nominal voltages.

of the system monitored. Insulation monitoring

4.4.1 Response characteristics for main circuits in 3AC systems

EDS309x_D00012_03_M_XXEN/11.2014

Page 24

4.4.2 Response characteristics for main circuits in AC systems

0 50 100 150 200 250 3 00

[k]

Ce[uF]

AC42V

2mA

5mA

10mA

0 50 100 150 2 00 250 3 00

[k]

Ce[uF]

AC110V

2mA 5mA 10mA

050100150

[k]

Ce[uF]

AC230V

2mA 5mA 10mA

100

0 20406080100

[k]

Ce[uF]

AC400V

2mA 5mA 10mA

0 100 200 300 400 500

[k]

Ce[uF]

DC24V

2mA 5mA 10mA

0 50 100 150 200 250 300

[k]

Ce[uF]

DC60V

2mA 5mA 10mA

0 50 100 150 200 250 300

[k]

Ce[uF]

DC110V

2mA 5mA 10mA

100

050100150

RF [k]

Ce[uF]

DC230V

2mA 5mA 10mA

Considerations prior to use

4.4.3 Response characteristics for main circuits in DC systems

EDS309x_D00012_03_M_XXEN/11.2014

Page 25

Considerations prior to use

100

120

0 5 10 15 20 25

[k]

Ce[uF]

AC42V

0,2mA 0,5mA 1mA

100

150

200

250

024681012

[k]

Ce[uF]

AC110V

0,2mA 0,5mA 1mA

100

200

300

400

500

600

02468

[k]

Ce[uF]

AC230V

0,2mA 0,5mA 1mA

100

120

0 102030405060

[k]

Ce[uF]

DC24V

0,2mA 0,5mA 1mA

100

150

200

250

0 5 10 15 20

RF[k]

Ce[uF]

DC60V

0,2mA 0,5ma 1mA

100

150

200

250

300

350

400

450

0246810

[k]

Ce[uF]

DC110V

0,2mA 0,5mA 1mA

100

200

300

400

500

600

700

800

900

1000

0123456

RF[k]

Ce[uF]

DC230V

0,2mA 0,5mA 1mA

4.4.4 Response characteristics for control circuits in AC systems

4.4.5 Response characteristics for control circuits in DC systems

EDS309x_D00012_03_M_XXEN/11.2014

Page 26

Considerations prior to use

EDS309x_D00012_03_M_XXEN/11.2014

Page 27

5. Connecting the locating current injector

CAUTION

US = 0 V

IT-System

PSA...

EDS195P

PGH186

L2(L-)

L1(L+)

Hazard due to excessively high locating voltage!

Check the information on the nameplate to ensure the devices to be connected are suitable for the supplying system. The operation of the PGH18… and possibly the power supply unit with an incorrect supply voltage can cause irreparable damage to the devices.

Prior to commissioning check whether all system components are correctly connected together.

5.1 Disconnecting insulation monitoring device

During insulation fault location using the EDS309… an existing insulation monitoring device must be disconnected from the system for the duration of the fault location if its internal resistance is

<120 kΩ. During this process the connection to the system must be interrupted on all poles, shut-

ting down the supply voltage to the insulation monitoring device is insufficient. On the usage of such a device with R ever the PGH18… will affect the measurement made by the insulation monitoring device.

5.2 Locating current injector in an electrically isolated IT system

For insulation fault location in electrically isolated systems using the EDS3096PG, the integrated voltage source G in the PGH186 supplies a locating voltage. The locating voltage DC 50 V is provided by the PGH186 at the socket L1(+). Ma ke sure that this socket is coupled to the system to be monitored during insulation fault location, only then will the integrated voltage source in the PGH186 be effective.

≥ 120 kΩ the effect is negligible, disconnection is not required in this case. How-

Note that the active conductors in the system to be checked must be coupled together via loads or the electrically isolated power supply.

EDS309x_D00012_03_M_XXEN/11.2014

Page 28

5.3 Connection to a live IT system

DANGER

Risk of electric shock!

On touching live uninsulated conductors, death or serious injury may be caused. For this reason prevent any physical contact with active conductors and follow the rules for working on electrical systems.

Risk of electric shock!

If the PGH18… is connected using terminals L1, L2, L3 (or L1, L2) to a system that is live due to its operation, the terminal must not be disconnected from the protective earth conductor (PE). Otherwise the terminal will be at the dangerous system voltage!

Connect the locating current injector PGH18… as follows:

Connecting the locating current injector

EDS195P

ILI

ISOSCAN®

ALARM

In I

ESC

HOLD

INFO

RESET

EDS309x_D00012_03_M_XXEN/11.2014

Page 29

Connecting the locating current injector

DANGER

CAUTION

Central inverter

AGE185

PGH186

L1(+)

L2(-)

IT system

Transformer

EDS

195P

BNC

EDS

195P

BNC

EDS

195P

BNC

Junction Box

PSA30..

EDS-

SET

Insulation fault

Strings

PSA30..

5.4 Connection to a PV system

Risk of electric shock!

If the PGH186 is connected using terminals L1(+) und L2(–) to a system that is live due to its operation, the terminal must not be disconnected from the protective earth conductor (PE). Otherwise the terminal will be at the dangerous system voltage!

Risk of short circuit!

When the EDS3090PV is connected with test leads without integrated fuses a short circuit may occur due to incorrect wiring. Connect the EDS3090PV with the accompanying test lead with integrated fuses to reduce the risk of a short circuit.

Connect the locating current injector PGH186 as follows:

Legend:

PGH186 Locating current injector AGE185 Coupling device EDS3096PV Equipment for insulation fault location EDS195P Insulation fault locator PSA30.. Measuring clamp (locating current sensor) EDS-SET BNC Tee connector and 2 BNC cables for fault localisation in diode-decoupled systems

EDS309x_D00012_03_M_XXEN/11.2014

Page 30

Connecting the locating current injector

For insulation fault location within the junction box, it is essential that the ± cables of a string are arranged in a way that the measuring clamp PSA30… can be put around the cables. Insulation faults in the strings can be localised by means of two measuring clamps connected in parallel and an EDS-SET. For this purpose, place the measuring clamps on both sides of the module supply conductors in the direction indicated by the arrows.

EDS309x_D00012_03_M_XXEN/11.2014

Page 31

6. Operation

DANGER

6.1 Short description of insulation fault location (EDS mode)

6.1.1 Commissioning the PGH18… for locating current injection

1. The PGH18… is to be connected first to PE in the system to be checked, see page 28

2. Then connect the PGH18… to the active conductors

3. Connect device to U

If the locating current I vice and set to EDS=On.

6.1.2 Insulation fault location using EDS195P

1. There must be no conductors in the measuring clamp and the measuring clamp must be stationary during

2. Switch on EDS195P without current transformer using the button

3. Wait for the end of the self test and the message "No CT connected"

4. Set required current transformer type using the button

5. Connect selected current transformer and wait for end of the self-test

6. Fit measuring clamp to PE conductor between PGH18… (IRDH575) and, for example, PE rail to demonstrate that the necessary locating current I

7. Place measuring clamp around the associated active conductors for the related outgoing circuit. Caution! Do not include PE in the cables in the clamp!

8. Read measured value and evaluate. If the response value set has been exceeded, the "ALARM" LED flashes.

Risk of electric shock!

On touching live uninsulated conductors, death or serious injury may be caused. For this reason avoid any contact whatsoever with active conductors on positioning the measuring clamp.

and switch on

is to be supplied by an IRDH575, select the EDS-Setup menu item on this de-

commissioning

is flowing.

6.2 Detailed description of insulation fault location

 For information on using the EDS309… without a permanently installed EDS system, see

page 42

 For information on using the EDS309… in addition to a permanently installed EDS system, see

page 45

 For information on using the EDS309… in diode-decoupled DC systems, see page 49

6.3 Description of a residual current measurement

Using the EDS195P it is also possible to undertake residual current measurements up to a value of 10 A, see page 49.

EDS309x_D00012_03_M_XXEN/11.2014

Page 32

6.4 Displays and controls on the PGH18…

PGH186

100mA

10mA

25mA

Imax

L1(+)

L2(-)

3(N)AC 0...575V mit/with 500...790V DC 0...504V AGE185 400...960V

Operation

ON/OFF switch, switch on or off locating current

Changeover switch for maximum locating current values: 25/10 mA or 2.5/1 mA

Not shown: magnetic strip on rear of housing for fastening to metal items (e.g. switch cabinet)

3 sockets for coupling to system

Socket for PE connection

Indicator LEDs: ON Operation LED

Indication of positive locating current cycle Indication of negative locating current cycle

Fine-wire fuse 100 mA

Flush mounted connector for supply voltage

EDS309x_D00012_03_M_XXEN/11.2014

Page 33

Operation

EDS195P

ALARM

RESET

HOLD INFO

ESC

Δs

Δn

EDS195P

Bender GmbH&CoKG

D-35305 Grünberg

EDS195P

Bender GmbH&CoKG

D-35305 Grünberg

INFO

ESC

6.5 Displays and controls on the EDS195P

EDS309x_D00012_03_M_XXEN/11.2014

ISOSCAN®

I I

HOLD

RESET

EDS195P

L n

ALARM

INFO

InI

ESC

BNC connection for measuring clamp

LC display, illuminated 3 lines of 16 characters

ALARM LED:

- Flashes if the response value is exceeded

- Illuminates continuously on rectification of the fault, if the fault memory is activated

Button for selecting the current transformer:

- PSA30xx = PSA30… / PSA3165 (suitable for I

- W/WR/WS = W…. / WR…. / WS…. (suitable for I

- PSA33xx = PSA33… (suitable for I

- W/WS-8000 = W….-8000 / WS….-8000 (suitable for I

- WF = WF…. (only suitable for I

Lmax

= 50 mA) = 50 mA) = 5 mA) = 5 mA)

)

Δn

INFO button:

- Device type, date, time, manufacturer

- Software version

- Actual response values I

and IΔn

ΔL

- Status word (setup status) ESC button: Leave a menu function without changing parameters

MENU button: Open the menu Enter button: Accept modified parameter values or selected menu items

Page 34

Operation

RESET

HOLD

I



EDS195P

BENDER GmbH&CoKG

D-35305 Grünberg

>>>Self test<<< CT in rest pos.!

>> >> >> >>

No CT connected

PSA30xx

On/Off button

Button for switching on/off the display lighting

RESET button: delete fault memory Down button: move down in the menu, reduce parameter values

HOLD button: save the measured value Up button: move up in the menu, increase parameter values

Button for selecting the operating mode: IΔL = Insulation fault location in IT systems (EDS mode)

= Residual current measurement in TN-S systems (RCM mode)

Δn

Micro USB connection for charging the device's rechargeable battery

6.6 Operating the EDS195P

6.6.1 Switching on and off the device

1. Switch on the device without current transformer using On/Off button. The self-test is started after switching on. If the self-test is completed normally "No CT connected" appears.

2. You can switch off the device by pressing the On-Off button for around 2 s.

Abb. 6.1: Start sequence for the EDS195P

EDS309x_D00012_03_M_XXEN/11.2014

Page 35

Operation

6.6.2 Changing the measuring clamp

Two methods can be used to change the measuring clamp.

 Changing with EDS195P switched off:

– Disconnect clamp no longer required

– Switch on EDS195P

– Wait for "No CT connected" message

– Set required clamp type

– Connect related clamp

– Wait for end of self-test.

 Changing with the EDS195P in operation:

– Disconnect clamp from the device

– Wait for "No CT connected" message

– Set required clamp type

– Connect related clamp

– Wait for end of self-test.

6.6.3 Improved legibility due to display lighting

Press the button at the bottom left to improve the legibility of text and symbols. Switch off the lighting by pressing the button again.

6.6.4 Changing between insulation fault location IΔL and residual current measurement I

Here you can select the measuring function. IΔn for residual current measurement preferably in TN/TT systems. I

for insulation fault location in IT systems.

ΔL

Avoid changing the mode during insulation fault location.

6.6.5 Quickly checking the response values for IΔL and I

Press the INFO button three times to display the actual response values.

operating modes

Δn

6.6.6 Checking Info menu

The following information appears on the display in succession on pressing the INFO button:

 Device name, time, date and manufacturer

 Software version with date

 Actual response values I

 Status information, coded, see page 58

ΔL

and I

Δn

EDS309x_D00012_03_M_XXEN/11.2014

Page 36

6.6.7 Significance of the display elements

I L = mA Anspr. = 5mA

PSA30xx

The elements shown relate to the EDS mode (IΔL). This mode is used for insulation fault location.

I L = 8mA Resp. = 5mA

Indication of the locating current pulse:

= Positive pulse,

= Pause or no measurement possible when permanently displayed = Negative pulse

29

= Timer (29…0) shows the duration of a measurement of an outgoing

circuit

Indication of the selected transformer type:

- PSA30xx = PSA30… / PSA3165 (suitable for I

- W/WR/WS = W…. / WR…. / WS…. (suitable for I

- PSA33xx = PSA33… (suitable for I

- W/WS-8000 = W….-8000 / WS….-8000 (suitable for I

- WF = WF…. (only suitable for IΔn)

PSA30xx

Lmax

= 50 mA) = 50 mA) = 5 mA) = 5 mA)

Operation

H = Hold function is activated; measured value indication "frozen"

M = Fault memory is activated

Loudspeaker symbol visible:

The presence of an alarm is also output audibly

Charge state of the rechargeable battery in the steps 0%, 33%, 66%,100%

Resp. = Response value IΔL

IΔL = Indication of the actual locating current measured

6.7 Standard displays on the EDS195P

6.7.1 EDS measurement (IΔL)

6.7.1.1 Standard display if there is no cable to be measured in the clamp

The device is in the EDS mode ( A measured locating current The display shows the timer count (29…0).

ΔL

is not indicated, as there is no conductor in the measuring clamp.

ΔL

EDS309x_D00012_03_M_XXEN/11.2014

Page 37

Operation

I L = mA Anspr. = 5mA

PSA30xx

I L = mA Anspr. = 5mA

PSA30xx

I n = 16mA H1 = 10mA THD = 39%

PSA30xx

ALARM

I n = 1.6A Resp. = 100mA

PSA30xx

ALARM

6.7.1.2 Standard display for EDS measurement (IΔL) with cable in the clamp

The display is indicating a measured fault current by the change in the polarity of the measuring pulse (

of 3 mA. A measurement in progress is indicated

ΔL

) with a pause (- - -) in between.

I L = 3mA Resp. = 5mA

PSA30xx

Note that only half the magnitude of the locating current I

generated by the PGH18… in AC systems

is indicated by EDS195P. The half-wave rectification used in the PGH18… reduces the value indicated in AC systems to 50 %, in 3AC systems to 67 %.

6.7.1.3 Standard display for measuring faults or pauses between changes in polarity of the

measuring pulse

When no measurement is possible due to low frequency residual currents or because the measuring clamp is not being held still, the display permanently indicates a pause (- - -) at the top right corner. During the evaluation of the measurement the display indicates a pause (- - -) for a short time only.

6.7.2 RCM measurement (IΔn)

6.7.2.1 Standard display for RCM measurement (IΔn) with cable in the clamp

The display is indicating the measured residual current

of 16 mA.

Δn

The residual current response value set is 100 mA.

I n = 16mA Resp. = 100mA

The following display appears if menu item "2.Settings/7.Harmonics: on" is activated. This setting can only be used for 50 Hz or 60 Hz systems. For the 1st harmonic (fundamental) the display is indicating a measured current of 10 mA as well as a total harmonic distortion THD of 39 %.

PSA30xx

6.8 Alarms during EDS measurement or RCM measurement

If one of the response values set IΔL or IΔn is exceeded, the ALARM LED flashes. If the fault memory M is activated, the ALARM LED continues to illuminate after the removal of the fault. The alarm saved is cleared using the RESET button.

EDS309x_D00012_03_M_XXEN/11.2014

I L = 8mA Resp. = 5mA

PSA30xx

Alarm during insulation fault

location (EDS):

LED flashes

Alarm during a residual current

measurement (RCM):

LED flashes

Page 38

6.9 Indication of device and measuring errors

Self test error PRESS ->RESET

PSA30xx

No CT connected

PSA30xx

I L = mA Anspr. = 5mA

PSA30xx

Error I

ΔL

PSA30xx

The following table explains the error messages that may occur.

Can only occur after the end of the self-test:

- Incorrect current transformer type set

- During the self-test the clamp was: Not stationary Or a residual current was flowing through it Or the PGH locating current was flowing through it

- EDS195P hardware faulty Press the "RESET" button to restart a self test.

No measuring clamp or no measuring current transformer on the measuring input or incorrect transformer type connected Measures: Connect correct measuring clamp or correct measuring current transformer

A permanent display of pause (- - -) indicates no measurement is possible. Steps:

- Hold the measuring clamp still

- Avoid low frequency residual currents

A malfunction has occurred during insulation fault location Possible causes:

- The measuring clamp was not held still.

- There is a low frequency residual current flowing through the measuring clamp that is interfering with the EDS measurement

- There a magnetic field around the measuring clamp that is

interfering with the EDS measurement

- EDS195P hardware faulty

Operation

If the EDS195 can no longer detect the locating current due to system interference and an existing alarm is therefore cleared, an insulation fault will be detected again at the end of the interference.

6.10 Factory settings EDS195P (state as supplied)

Most of the settings are made on the menu. If this is not the case, the setting is marked with (button).

Operating mode (button): I Current transformer (button): Measuring clamp PSA3052 (for EDS3090 and 3096)

Illumination (button): Off Fault memory: On Buzzer: On Response value I Response value I Response value I System frequency I Measurement of harmonics I

with PSA30…: 5 mA

with PSA33…: 0.5 mA

:100 mA

:50 Hz

:Off

User interface language: English Time: CET

ΔL (EDS mode = insulation fault location)

Measuring clamp PSA3352 (for EDS3091)

EDS309x_D00012_03_M_XXEN/11.2014

Page 39

Operation

6.11 Menu structure

The menu structure is shown schematically in the following.

Level 1 Level 2 Level 3

1. Exit

2. Settings

3. System 1. Exit

4. Harmonics 1. Exit

1. Exit

2. I

ΔL ALM: 0.2…10 mA

3. IΔn ALM: 10 mA…10 A

Response value measured locating current IΔL Response value residual current I

4. Memory: on/off

5. Buzzer: on/off

6. Frequ.: 50/60Hz/up to 1kHz

7. Harmonics: on/off

2. Language

Audible alarm Frequency of the system monitored Indication of harmonics and total harmonic distortion THD in %

1. Exit

2. German

3. English

4. French

5. Russian

3. Clock 1. Exit

2. Format: D.M.Y

3. Date

4. Time

4. Contrast: 0…15

2. H1 < 10 mA

3. H2 < 10 mA

.....

9. H8 < 10 mA

Contrast setting for display

This menu item is used only for the indication of harmonics from H1 to H8. To display the harmonic with the greatest amplitude in the standard display with the menu closed, the menu item "7. Harmonics: on/off" on the Settings menu is to be activated

or explanation

5. IΔL alarms 1. Exit

Δn logger 1. Exit

6. I

7. Service

EDS309x_D00012_03_M_XXEN/11.2014

2. Entries

Alarm No. 001 No. 002

No. ......

3. Delete 1. Exit

2. Delete Data

2. Entries

3. Change: 10…100 %

4. Overwrite: yes/no

Entry No. 001 No. 002

No. ......

Percentage change from which logging becomes active

Overwrite oldest data record

5. Delete 1. Exit

2. Delete Data

For serv ice only

Page 40

6.11.1 Navigating in the menu

HOLD

RESET

INFO

ESC

- Open the menu using MENU

- Select a menu item or accept a value using OK

- Navigate up or down in the menu

- Increase or reduce values

ESC:

- Return from the last menu item selected

- Discard modified setting without saving

6.11.2 Menu item: Settings

Using this menu item you can access the following parameters for the insulation fault location and for the residual current measurement to:

 Set the response value for the locating current I

between 0.2…10 mA. This value range is equally suitable for control circuits (0.2…1 mA) and main circuits (2…10 mA). On the usage of the locating current injector note that the permissible locating current defined for control circuits is I

 Set the response value for the residual current I

= 5 mA, while for main circuits it is I

Lmax

between 10 mA and 10 A

 Activate or deactivate the fault memory

 Activate or deactivate audible signalling of alarms

 Set the frequency of the system monitored

 Enable the indication of the harmonics to display the current for the harmonic with the greatest

amplitude in the standard display. All harmonics from H1 to H8 can be checked using menu item "4. Harmonics", see also page 41. Note that with harmonics activated only system frequencies of 50 Hz and 60 Hz can be selected.

measured with the measuring clamp to

ΔL

= 50 mA.

Lmax

measured with the measuring clamp to

Δn

Operation

Level 1 Level 2 Meaning

2. Settings 1. Exit

ΔL ALM: 0.2…10 mA

2. I

3. IΔn ALM: 10 mA…10 A

Response value measured locating current I Response value residual current I

4. Memory: on/off

5. Buzzer: on/off

6. Frequ.: 50/60Hz/up to 1kHz

7. Harmonics: on/off

Audible alarm Frequency of the system monitored Indication or harmonics and total harmonic distortion THD

Alarms are signalled by the Alarm LED and the buzzer (delivery condition).

EDS309x_D00012_03_M_XXEN/11.2014

Page 41

Operation

6.11.3 Menu item: System

Use this menu item to select the language for the user interface and to set the correct date and time. The date format can be changed. You can adjust the quality of the display by adjusting the contrast.

Level 1 Level 2 Level 3 or explanation

3. System 1. Exit

2. Language

1. Exit

2. German

3. English

4. French

5. Russian

3. Clock 1. Exit

2. Format: D.M.Y

3. Date

4. Time

4. Contrast: 0…15

Contrast setting for display

6.11.4 Menu item: Harmonics

This menu item is used only for the indication of harmonics from H1 to H8.

Level 1 Level 2 Meaning

4. Harmonics 1. Exit

2. H1 < 10 mA

3. H2 < 10 mA

.....

9. H8 < 10 mA

This menu item is used only for the indication of harmonics from H1 to H8. To display the harmonics, activate the menu item "2.Setting/7. Harmonics: on/off"

6.11.5 Menu item: IΔL alarms

Using this menu item you can check the alarms recorded automatically during insulation fault location. The data records are numbered and contain the following information:

 The start of the alarm

 The end of the alarm

 The minimum locating current I

 The maximum locating current I

A maximum of 300 data records are saved. The existing data records can be deleted using the menu.

measured

ΔL

measured

ΔL

Level 1 Level 2 Level 3 Meaning

5. IΔL alarms 1. Exit

2. Entries Alarm No. 001

3. Delete 1. Exit

EDS309x_D00012_03_M_XXEN/11.2014

No. 002

No. ......

2. Data delete

Period for the recording and min./ max. values measured for I

Page 42

Operation

DANGER

6.11.6 Menu item: I

logger

Using this menu item you can check the measured values recorded automatically during a residual current measurement. The data records are numbered and contain the following information:

 The start time for the measurement and the change in the residual current monitored

 The residual current I

measured

A maximum of 300 data records are saved. The existing data records can be deleted using the menu.

Level 1 Level 2 Level 3 Meaning

6. IΔn logger 1. Exit

2. Entries Entry No. 001 No. 002

No. ......

3. Change:

10…100 %

4. Overwrite:

yes/no

5. Delete 1. Exit

2. Data delete

Time of the recording and residual current I

Percentage change from which logging becomes active

Overwrite oldest data record

measured

6.12 Practical usage

6.12.1 Insulation fault location in a system without a permanently installed EDS system

Risk of electric shock!

On touching live uninsulated conductors, death or serious injury may be caused. For this reason avoid any contact whatsoever with active conductors on connecting the PGH and positioning the measuring clamp.

The EDS309… is primarily used as a portable insulation fault location system in unearthed IT systems. Once all the instructions in chapter “Considerations prior to use” on page 19 have been followed, insulation fault location can be started. Proceed as follows during this process:

1. Check whether the system voltage is within the permissible limits. The permissible voltages are stated in the user interface on the PGH18….

2. Connect the locating current injector PGH18… close to the feed, see connection diagram on page 28. During this process follow the general guidelines for working with electrically live systems!

– First connect the PE socket on the PGH18… to the system's PE using the green-yellow wire.

– Then connect the PGH18… to the system to be checked using the connection wires pro-

vided.

Three-phase system Connect sockets L1, L2 and L3 to the system

Single-phase AC or DC Connect sockets L1 and L2 to the system

EDS309x_D00012_03_M_XXEN/11.2014

Page 43

Operation

3. Connect the PGH18… to a suitable power supply using the power cable supplied (see nameplate).

4. If there is an insulation monitoring device with an Ohmic internal resistance < 120 kΩ in the IT system to be checked, disconnect it from the system to be checked on all poles. It is not sufficient to switch off the power supply to the insulation monitoring device.

5. Set the maximum locating current using the I

switch on the PGH18…. Follow the instruc-

max

tions in chapter “Reduced locating current” on page 22.

6. Switch on the PGH18…. The "ON" LED illuminates and the two

alternately in synchronism with the

test cycle. If there is no activity indicated on the LEDs, check

"" and "" LEDs flash

the supply voltage and the fine-wire fuse that can be accessed from the front panel.

7. Switch on the EDS195P without a current transformer connected by pressing the button. The device undertakes a self-test and outputs the error message "No CT connected" because a current transformer is not connected.

8. Now select the type of measuring clamp or measuring current transformer to be connected using the button. The device undertakes a further self-test and outputs the error message "No CT connected" because a current transformer is not connected

9. Then connect the pre-selected measuring clamp or the pre-selected measuring current transformer to the EDS195P. The device undertakes a further self-test and is then in the EDS mode. "I

" appears in the first line of the display.

ΔL

10. On handling the measuring clamp note:

– Do not bring measuring clamp into contact with system voltages above the rated insulation

voltage (see nameplate on the measuring clamp with information on measuring category, e.g. CAT III)

– Always keep contact surfaces on measuring clamp's iron core clean.

– Do not use measuring clamp in the immediate vicinity of devices that produce magnetic

fields such as transformers or chokes and also not near adjacent conductors carrying high currents.

– Never disconnect measuring clamp from the EDS195P while it is placed around electrically

live conductors. Otherwise the measuring clamp may be irreparably damaged!

– Aim for the best possible symmetry of the conductors in the measuring clamp. Otherwise

the measuring clamp may go into saturation due to an excessively high load current and cause an alarm I

>10 A.

– Keep the measuring clamp still during the measurement!

– During the measurement do not apply any pressure to the clamp limb.

11. Cover the green and yellow lead between PHG18… and earth with the measuring clamp. A measurement process should take no more than 30 seconds. When the EDS195P is ready to take a measurement, the countdown (29…0) at the top right corner of the display starts. If the time has expired and no error has been found, the countdown starts again. During a measurement, the EDS195P shows recognized test current signals with pauses in between: i.e. - - - . In the case of a measurement fault, the display permanently indicates pause (- - -). There are 3 reasons for this:

– The insulation fault resistance is too high and cannot be measured by the EDS195P.

– The measuring clamp is not being held still. Hold the clamp still during measurement.

– Low frequency residual currents or magnetic fields in the environment have been superim-

posed on the test current pulse. Avoid these disturbances.

EDS309x_D00012_03_M_XXEN/11.2014

Page 44

12. Start the insulation fault location from the main distribution area of the IT system. Place the measuring clamp around all system conductors, but not the PE conductor. During each measurement wait one test cycle (approx. 30 seconds). A flashing alarm LED on the EDS195P signals an insulation fault after (from the point of view of the locating current injector) the measuring clamp. It recommended to have the buzzer activated during the search.

13. Now measure along the cable using the EDS195P until the fault is found. During this process move into sub-distribution systems using a star-shaped approach. The location of the fault is found when the locating current in the measuring clamp generated by the PGH18… exceeds as a minimum the response value set on EDS195P.

Possible error messages

 Self test error:

– Incorrect current transformer type set

– EDS195P hardware faulty

– Clamp moved while the indication ">>>Self test<<<" was displayed

– An interfering residual current is flowing through the clamp

– There is a PGH locating pulse acting on the clamp

 No CT connected:

Measuring clamp or measuring current transformer not connected or faulty.

 Error I

(can only be indicated while a measurement is in progress):

ΔL

– Low frequency interference, measurement not possible

– EDS195P hardware faulty

 I

>10 A / >1 A:

Δn

There is a residual current > 10 A or >1 A flowing through the measuring clamp. In this case it is not possible to locate the insulation fault on the related outgoing circuit. Residual currents of this magnitude in an IT system can be caused by large system leakage capacitances or multiple insulation faults. It is therefore possible that there is an insulation fault on this outgoing circuit also with this alarm message.

Operation

At operating currents < 10 A a measurement can also be made by placing the clamp around only one conductor. At currents > 10 A it may no longer be possible to open the measuring clamp. This risk is particularly apparent in DC systems. If this effect occurs, under no circumstances apply force; this action would irreparably damage the measuring clamp. Instead the related system must be shut down. It will then be possible to open the measuring clamp without the need to apply force.

EDS309x_D00012_03_M_XXEN/11.2014

Page 45

Operation

DANGER

6.12.2 Insulation fault location in a system with a permanently installed EDS system

The EDS195P can also be used in a permanently installed EDS system (EDS460/490 or EDS461/491). In a large, complex IT system the main outgoing circuits are often monitored by the permanently installed EDS system. Once the main outgoing circuit affected by an insulation fault is detected, the search is continued from there using the portable EDS195P. During this process the EDS195P uses the locating current pulse from the permanently installed EDS system (IRDH575, PGH47…). The PGH18… is not required for this application. The PGH18… is not included in the items supplied with the EDS3090 and EDS3091. Insulation fault location is therefore only possible in electrically live IT systems. Also follow the operating instructions for the permanently installed EDS system.

Risk of electric shock!

On touching live uninsulated conductors, death or serious injury may be caused. For this reason avoid any contact whatsoever with active conductors on positioning the measuring clamp.

Example: The insulation monitoring device has signalled an insulation fault below its response value and started the permanently installed EDS system. The main outgoing circuit affected by the insulation fault has been detected. Proceed as follows for the further insulation fault location:

1. Set the mode of the EDS system to continuous insulation fault location:

– IRDH575: On the "EDS Setup" menu set the "EDS on" mode

– PGH471: Press "Start/Stop" button

2. Switch on the EDS195P without a current transformer connected by pressing the button. The device undertakes a self-test and outputs the error message "No CT connected" because a current transformer is not connected.

3. Now select the type of measuring clamp or measuring current transformer to be connected using the button. The device undertakes a further self-test and outputs the error message "No CT connected" because a current transformer is not connected

4. Then connect the pre-selected measuring clamp or the pre-selected measuring current transformer to the EDS195P. The device undertakes a further self-test and is then in the EDS mode. "I

ΔL" appears in the first line of the display.

5. On handling measuring clamps note:

– Do not bring measuring clamp into contact with system voltages above the nominal insula-

tion voltage. (See nameplate on the measuring clamp with information on measuring category, e.g. CAT III)

– Always keep contact surfaces on measuring clamp's iron core clean.

– Do not use measuring clamp in the immediate vicinity of devices that produce magnetic fields

such as transformers or chokes and also not near adjacent conductors carrying high currents.

– Never disconnect measuring clamp from the EDS195P while it is placed around electrically

live conductors. Otherwise the measuring clamp may be irreparably damaged!

– Aim for the best possible symmetry of the conductors in the measuring clamp.

Otherwise the measuring clamp may go into saturation due to an excessively high load current and cause an alarm I

– Keep the measuring clamp still during the measurement!

– During the measurement do not apply any pressure to the clamp limb.

6. Place the measuring clamp around the green-yellow wire between the IRDH575 or PGH47… and earth. If the EDS195P does not react, the insulation fault has an excessively high impedance and cannot be detected. Locating current pulses detected are indicated using the symbol.

>10 A.

Δn

EDS309x_D00012_03_M_XXEN/11.2014

Page 46

7. Start the insulation fault location in the outgoing circuit of the IT system already detected as faulty. Place the measuring clamp around all system conductors,

but not the PE conductor

During each measurement wait one test cycle (approx. 30 seconds). A flashing alarm LED on the EDS195P signals an insulation fault after (from the point of view of the locating current injector) the measuring clamp. It recommended to have the buzzer activated during the search.

8. Now measure along the cable using the EDS195P until the insulation fault is found. During this process move into sub-distribution systems using a star-shaped approach. The location of the fault is found when the locating current generated by the IRDH575 or PGH47… in the measuring clamp exceeds as a minimum the response value set on EDS195P.

Possible error messages

 Self test error:

– Incorrect current transformer type set

– EDS195P hardware faulty

– Clamp moved while the indication ">>>Self test<<<" was displayed

– An interfering residual current is flowing through the clamp

– There is a PGH locating pulse acting on the clamp

 No CT connected:

Measuring clamp or measuring current transformer not connected or faulty.

 Error IΔL (can only be indicated while a measurement is in progress):

– Low frequency interference, measurement not possible

– EDS195P hardware faulty

 IΔn >10 A / >1 A:

There is a residual current > 10 A or > 1 A flowing through the measuring clamp. In this case it is not possible to locate the insulation fault on the related outgoing circuit. Residual currents of this magnitude in an IT system can be caused by large system leakage capacitances or multiple insulation faults. It is therefore possible that there is an insulation fault on this outgoing circuit also with this alarm message.

Operation

EDS309x_D00012_03_M_XXEN/11.2014

Page 47

Operation

DANGER

6.12.3 Insulation fault location in diode-decoupled DC systems

In diode-decoupled DC systems equalising currents occur in and between the decoupled circuits. The direction and magnitude of these equalising currents is dependent on voltages in the system, the characteristics of the decoupling diodes and the characteristics of the loads. On the usage of the insulation fault location system EDS309… in such systems these equalising currents make themselves apparent and can degrade the accuracy of the measurement. For this reason we recommend the usage of the EDS309… in diode-decoupled systems as shown in the sketch on the next page.

Risk of electric shock!

During this process please note:

 Always use two measuring clamps of the same type.

Attention: this clamp type must also be set on the EDS195P.

 For this purpose use the EDS195P set (see ordering data, page 59).

 Take into account the maximum length of the coax cable of 10 m per measuring clamp.

 The usage of two measuring clamps results in a sensitivity loss of around 10 %.

 It is imperative both measuring clamps are used such that the direction of the flow of energy

corresponds to the arrow printed on the clamp.

Example: The central insulation monitoring device in a DC system without permanently installed insulation fault location system (EDS) has signalled an insulation fault that is below the insulation value that can be located using the EDS system. Once all the instructions from chapter "4. Considerations prior to use" have been followed, fault location in a modified form can be started. Proceed as follows during this process:

1. Read the actual insulation resistance on the insulation monitoring device. If the value read for the insulation resistance is lower than the maximum insulation fault that can be located by the EDS system, two appropriate identical measuring clamps (e.g. 2 x PSA3020 or 2 x PSA3052) are required for the insulation fault location.

2. Switch on the EDS195P without a current transformer by pressing the button. The device undertakes a self-test and outputs the error message "No CT connected".

3. Now select the type of measuring clamp(s) to be connected using the button. The device undertakes a further self-test and outputs the error message "No CT connected" because a current transformer is not connected

4. Then connect the pre-selected measuring clamp(s) to the EDS195P. The device undertakes a further self-test and is then in the EDS mode. "I

ΔL" appears in the first line of the display

5. Connect the PGH18… to the locating current injection points are shown on page 48.

6. Start the EDS system: Switch on the PGH18…. The "ON" LED illuminates and the two and LEDs flash in synchronism with the test cycle. If there is no activity indicated on the LEDs, check the supply voltage and the fine-wire fuse fitted in the PGH18….

7. Insulation fault location in the system:

– Place a measuring clamp around each of the supply cables to the redundantly supplied

loads. During this process ensure that the clamp is placed around all related load supply cables for a diode-decoupled load.

EDS309x_D00012_03_M_XXEN/11.2014

Page 48

– Pay attention to identical directions of flow on the two measuring clamps (see connection

PSA3052

MESSZANGE / CLAM

ON PROBE

Datenblatt / Da

asheet :

TGH13xx

Durchmesser / Diameter : 52 mm

Art.-N

. / Art.-no. : B 980 xxx

PSA3052

MESSZANGE / CLAM

P ON PROBE

Datenblatt / Dat

asheet :

TGH13xx

Durchmesser / Diameter : 52 mm

Art.-Nr. / Art.-no. : B 980 xx

PSA3052

MESSZANGE / CLAM

P ON PROBE

Datenblatt / Da

tasheet :

TGH13xx

Durchmesser / Diameter : 52 mm

Art.-N

. /

Art.-no. : B 980 6xx

PGH186

100mA

10 mA

25 mA

Imax

L1(+)

L2(-)

AC/DC

L-

L+

L-

PGH185

Selector switch EDS/IMD

DC main distribution (DC 20-360 V)

Central coupling of the insulation monitoring device (IMD) and the locating current injector PGH185

Us AC 230 V

PSA3052/3020

EDS195P

DC sub distribution

max.

= 10 m

L+

L-

Load

Insulation fault

Load

EDS195P

PSA3052/3020

IMD

diagram). For this purpose the measuring clamps are marked with an arrow

Place the two measuring clamps successively and systematically around all parallel outgoing cables for loads. Outgoing cables for loads with an insulation fault are indicated by the flashing alarm LED on the EDS195P. The alarm messages are output in the same way as for an application with a single measuring clamp. For possible error messages see page 44.

Operation

EDS195P

ISOSCAN®

In I

HOLD

RESET

ILI

ALARM

ESC

INFO

EDS195P

ILI

ISOSCAN®

ALARM

In I

ESC

INFO

HOLD

RESET

Abb. 6.2: Insulation fault location in diode-decoupled DC systems (connection diagram)

EDS309x_D00012_03_M_XXEN/11.2014

Page 49

Operation

6.12.4 Usage of the EDS195P as a residual current meter

The EDS195P can be used as a residual current meter up to AC 10 A in TN and TT systems. Residual current measurement is only possible in electrically live systems. The locating current injector PGH18… is not required for this application.

1. Check whether the system voltage is within the permissible limits.

4. Then connect the pre-selected measuring clamp or the pre-selected measuring current transformer to the EDS195P. The device undertakes a further self-test and is then in the EDS mode. "I

ΔL" appears in the first line of the display.

5. Make the following settings:

– Change to the I

– Set residual current response value using the menu path "2. Settings /3. I

6. On handling measuring clamps note:

– Do not bring measuring clamp into contact with system voltages above the nominal insula-

tion voltage. (See nameplate on the measuring clamp)

– During the measurement place the clamp around all system conductors, but not PE. Do not

place the clamp around screened conductors.

– Always keep contact surfaces on measuring clamp's iron core clean.

– Do not use measuring clamp in the immediate vicinity of devices that produce magnetic

fields such as transformers or chokes and also not near adjacent conductors carrying high currents.

– Never disconnect measuring clamp from the EDS195P while it is placed around electrically

live conductors. Otherwise the measuring clamp may be irreparably damaged!

– Aim for the best possible symmetry of the conductors in the measuring clamp.

Otherwise the measuring clamp may go into saturation due to an excessively high load current and cause an alarm I

– Keep the measuring clamp still or let go of it during the measurement!

– During the measurement do not apply any pressure to the clamp limb.

7. Start the measurement from the main distribution area of the system. Now measure along the cable using the EDS195P until the insulation fault is found. During this process move into subdistribution systems using a star-shaped approach.

8. EDS195P indicates the residual current at each measuring point. If the residual current is greater than the response value set, the "ALARM" LED illuminates and the measured value is displayed. If the buzzer is activated, there is also an audible signal.

9. For long-term measurements at a point in the system, the fault memory is to be activated in the menu 2.4 (Settings/Memory). In this way it is also possible to find intermittent residual currents provided they are above the response value set. The highest residual current measured is saved.

Δn (RCM mode) function using the related button

Δn ALM:"

Δn >10A.

EDS309x_D00012_03_M_XXEN/11.2014

Page 50

Possible error messages

I I



 Self test error:

– Incorrect current transformer type set

– EDS195P hardware faulty

– Clamp moved while the indication ">>>Self test<<<" was displayed

– An interfering residual current is flowing through the clamp

– There is a PGH locating pulse acting on the clamp

 No CT connected:

Measuring clamp or measuring current transformer not connected or faulty.

 Error IΔL (can only be indicated while a measurement is in progress):

– Low frequency interference, measurement not possible

– EDS195P hardware faulty

 IΔn >10 A / > 1 A:

There is a residual current > 10 A or >1A flowing through the measuring clamp. In this case it is not possible to locate the insulation fault on the related outgoing circuit. Residual currents of this magnitude in an IT system can be caused by large system leakage capacitances or multiple insulation faults. It is therefore possible that there is an insulation fault on this outgoing circuit also with this alarm message

Operation

6.12.5 Indication of the harmonics during residual current measurement

Using the EDS195P it is also possible to measure harmonics of the fundamental frequencies of 50 or 60 Hz.

1. Switch on the EDS195P by pressing the button.

The device is in the EDS mode. IΔL appears in the first line of the display

2. Check correct setting for the selection of the clamp or current transformer on the display, correct if necessary

3. Now select the measurement type I

4. Then make the following settings:

– Check response value on menu 2.3 (Settings I

– Check system frequency on menu 2.6 (Settings I

– Activate measurement of the harmonics on menu 2.7 (Settings /Harmonics)

– Select the required harmonics on menu 4.

The EDS195P indicates the harmonics of a residual current at each measuring point. If the residual current is greater than the response value set, the "ALARM" LED flashes and the measured value is displayed. If the buzzer is activated, there is also an audible signal. After the activation of the harmonics in menu 2.7, the harmonic with the greatest amplitude and the total harmonic distortion in % can be seen in the standard display with the menu closed.

Δn (RCM mode) using the button

) and change if necessary

EDS309x_D00012_03_M_XXEN/11.2014

Page 51

Operation

DANGER

6.13 Coupling device AGE185 for higher system voltages

This option is available for the variants EDS3090PG, EDS3090PG-13 and EDS3096PG with the locating current injectors PGH185 and PGH186. The coupling device AGE185 expands the nominal voltage range of the insulation fault location system EDS309… The AGE185 reduces the losses in the locating current injector PGH18… As a result it makes it possible to connect the PGH18… to nominal system voltages up to AC 790 V or DC 960 V.

Risk of electric shock!

On touching live uninsulated conductors, death or serious injury may be caused. For this reason avoid any contact whatsoever with active conductors on connecting the PGH or the AGE.

Assembly, connection and placing in operation

Connection and placing in operation only by an electrical technician! It is imperative the existing safety regulations are followed! The ends of the wires from the AGE185 can be connected, as necessary and to suit the local situation, to the system's PE terminal and the PE socket on the PGH186; it is not necessary to take into account the polarity.

Connection diagram

IT System

PGH186

Imax

25 mA

10 mA

AC/DC

L2(-)

EDS195P

ILI

ISOSCAN®

ALARM

ESC

INFO

HOLD

RESET

TGH13xx

asheet : t

Art.-no. : B 980 6xx

r. /

MESSZANGE / CLAMP ON PROBE

Datenblatt / Da

Durchmesser / Diameter : 52 mm

Art.-N

PSA3052

To the loads

100mA

PGH186

L1(+)

AGE185

EDS195P

Abb. 6.3: Connection diagram EDS309… with AGE185

EDS309x_D00012_03_M_XXEN/11.2014

Page 52

6.14 Power supply for the EDS195P

I L = 8mA Resp. = 5mA

PSA30xx

CAUTION

 The device is supplied with power using 3 NiMH cells of 1.2 V each

or 3 mignon cells of type LR6 AA of 1.5 V each.

 The power supply unit is not allowed to be connected with non-rechargeable batteries

fitted!

 On the connection of a power supply unit, there must be 3 correctly functioning rechargeable

batteries in the battery compartment.

 Rechargeable battery charging time ≤ 5 h.

6.14.1 Displaying charge state

The display can indicate 4 different charge states: 100 %, 66 %, 33 % and a flashing empty battery symbol.

Operation

6.14.2 Changing batteries

The battery compartment is on the rear of the EDS195P. The settings in the EDS195P are retained on changing the batteries.

1. Undo 2 screws in the cover on the rear, remove cover.

2. Remove old batteries.

3. Fit new batteries in the battery compartment with correct polarity as indicated by the markings.

4. Close cover.

6.14.3 Power supply unit supplied

Risk of incorrect triggering due to wrong measuring values!

Power supply unit influences the measuring accuracy of EDS195P.

Therefore, do not connect the power supply unit during measurements.

A power supply unit with a USB connector and USB cable is included in the items supplied. The primary purpose of the power supply unit supplied is to charge the rechargeable batteries in the EDS195P. See the display on the EDS195P for the charge state of the rechargeable batteries.

EDS309x_D00012_03_M_XXEN/11.2014

Page 53

7. Technical specifications

7.1 Technical specifications for the system EDS309…

The technical specifications stated in this section apply to the components PGH18…, EDS195P, AGE185.

Environment/EMC

EMC ................................................................................................................................................................................................................ IEC 61326-2-4

Operating temperature ................................................................................................................................................................................ -10…+ 55 °C

Climatic classes acc. to IEC 60721:

Stationary use (IEC 60721-3-3) ................................................................................................................................. 3K5 (without condensation or icing)

Transport (IEC 60721-3-2) ......................................................................................................................................... 2K3 (without condensation or icing)

Long-term storage (IEC 60721-3-1) ......................................................................................................................... 1K4 (without condensation or icing)

Classification of mechanical conditions acc. to IEC 60721:

Stationary use (IEC 60721-3-3) .....................................................................................................................................................................................3M4

Transport (IEC 60721-3-2) ............................................................................................................................................................................................. 2M2

Long-term storage (IEC 60721-3-1) .............................................................................................................................................................................1M3

Other

Operating mode .......................................................................................................................................................................................... Continuous duty

Position in normal use...................................................................................................................................................................................................... Any

Weight EDS309… ................................................................................................................................................................................................ ≤ 7000 g

Weight EDS309… with PSA3165 ....................................................................................................................................................................... ≤ 8500 g

Weight EDS3092 ................................................................................................................

Dimensions, case W x H x D ................................................................................................................................................................ 430 x 340 x 155 mm

................................................................................... ≤ 9000 g

7.2 Technical specifications PGH18…

Insulation coordination according to IEC 60664-1/IEC 60664-3

Rated voltage .......................................................................................................................................................................................................... 500 V AC

Rated surge voltage / degree of pollution ................................................................................................................................................................. 4 kV/3

Nominal system voltage U

PGH183 .........................................................................................................................................................AC 42…460 Hz 20…265 V, DC 20…308 V

PGH185 ................................................................................................................................................ 3AC/AC 42…460 Hz 20…575 V, DC 20…504 V

PGH186 .................................................................................................................................................... 3AC/AC 42…460 Hz 0…575 V, DC 0…504 V

Supply voltage

Supply voltage U Operating range of U

Supply voltage US version -13 ................................................................................................................................................. AC 50…60 Hz 90…132 V

PGH 183, PGH 185:

Power consumption ................................................................................................................................................................................................. ≤ 3 VA

PGH 186:

................................................................................................................................................................................ AC 50…60 Hz 230 V

................................................................................................................................................................................ 0.85…1.15 x U

EDS309x_D00012_03_M_XXEN/11.2014

Page 54

Technical specifications

Locating current

PGH183:

Locating current max., can be selected .................................................................................................................................................................. 1/2.5 mA

PGH185/186:

PGH183/185/186

Test cycle ............................................................................................................................................................................................................................ 2 s

Pause duration ................................................................................................................................................................................................................... 4 s

Locating voltage

PGH186.......................................................................................................................................................................................................................DC 50 V

Other

Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) ................................................................................................................ IP40

Enclosure material.................................................................................................................................................................................................ABS plastic

Flammability class.................................................................................................................................................................................................... UL94V-0

Weight...................................................................................................................................................................................................................... ≤ 700 g

Dimensions ............................................................................................................................................................................................ 160 x 148 x 81 mm

7.3 Technical specifications EDS195P

( )* = Factory settings

Insulation coordination according to IEC 60664-1/IEC 60664-3

Rated surge voltage/degree of pollution ................................................................................................................................................................ 0.8 kV/3

Supply voltage

Power supply U

.................................................................................................................... Rechargeable batteries, batteries or USB power supply unit

Rechargeable batteries......................................................................................................................................................................3 x NiMH ≥ 2000 mAh

Operating time (without display lighting).............................................................................................................................................................. ≥ 150 h

Charging time .............................................................................................................................................................................................................. ≤ 5 h

Size................................................................................................................................................................................................................................ AA R6

Batteries....................................................................................................................................................................................................3 x LR6 AA – 1.5 V

USB power supply unit:

Primary ....................................................................................................................................................................................... 100…240 V, 50…60 Hz

Secondary .................................................................................................................................................................................................... DC 5 V, ± 10 %

Power consumption................................................................................................................................................................................................. ≤ 0.5 W

Measuring circuit, insulation fault location

Nominal system voltage .............................................................................................. With uninsulated conductors with measuring clamp up to 600 V

Rated frequency ....................................................................................................................................................................................... DC, 42…2000 Hz

Main circuit (I

Lmax

= 50 mA):

Measuring range ................................................................................................................................................................................................. 2…50 mA

Measuring clamps................................................................................................................................................................. PSA3020, PSA3052, PSA3165

Response sensitivity I

adjustable .................................................................................................................................................... 2… 10 mA (5 mA)*

ΔL

Operating uncertainty ............................................................................................................................................ ±30 % / ±2 mA of the nominal value

Control circuit: (I

Lmax

= 5 mA)

Response sensitivity I

adjustable ............................................................................................................................................. 0.2…1.0 mA (0.5 mA)*

ΔL

Operating uncertainty 0.2…0.9 mA ................................................................................................................. ±30 % / ± 0.2 mA of the nominal value

Operating uncertainty 1…5 mA .......................................................................................................................... ±30 % / ± 2 mA of the nominal value

EDS309x_D00012_03_M_XXEN/11.2014

Page 55

Technical specifications

Measuring circuit, residual current

With measuring clamps ........................................................................................................................................................ PSA3020, PSA3052, PSA3165

Response sensitivity I

Measuring clamps ................................................................................................................................................................................. PSA3320, PSA3352

Response sensitivity I

Frequency range ............................................................................................................................................................................................. 42…1000 Hz

Operating uncertainty, 42…60 Hz ........................................................................................................................................................................... ±5 %

Operating uncertainty, 61…1000 Hz ..................................................................................................................................................................... ±20 %

Hysteresis....................................................................................................................................................................................................................... 20 %

Harmonics, indication can be disabled ................................................................................................................................................. 1st to 8th harmonic

Inputs

Connection for measuring clamp........................................................................................................................................................................ BNC socket

Connection for power supply unit (DC 5 V) ..................................................................................................................................................... μUSB socket

Display

LCD............................................................................................................................................................... 3 x 16 characters, illumination can be enabled

LED ............................................................................................................................................................................................................................... Alarm

Other

Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) ................................................................................................................ IP40

Protective class according to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100)....................................................................................................... Class III

Enclosure material ............................................................................................................................................................................................... ABS plastic

Flammability class ................................................................................................................................................................................................... UL94V-0

Weight ...................................................................................................................................................................................................................... ≤ 350 g

Software version .................................................................................................................................................................................................. D399 V2.0

Dimensions WxHxD.................................................................................................................................................................................. 84 x 197 x 30 mm

adjustable........................................................................................................................................... 10 mA…10 A (100 mA)*

Δn

adjustable............................................................................................................................................... 5 mA…1 A (100 mA)*

Δn

7.4 Technical specifications measuring clamps

Electrical safety

Standard .................................................................................................................................................................................................... IEC 61010-2-030

Degree of pollution.............................................................................................................................................................................................................. 2

System class......................................................................................................................................................................................................................... III

Operating voltage......................................................................................................................................................................................................... 600 V

Nominal insulation voltage ........................................................................................................................................ AC 600 V CAT III or AC 300 V CAT IV

Transformer ratio

PSA30… ........................................................................................................................................................................................................... 10 A/10 mA

PSA33… ............................................................................................................................................................................................................ 1 A/0.1 mA

PSA3165 ........................................................................................................................................................................................................... 10 A/10 mA

Other

Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) ............................................................................................................... IP40

Protective class according to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100)....................................................................................................... Class III

Measurement output ................................................................................................................................................................................... BNC connector

Dimensions PSA3052 / 3352 ................................................................................................................................................................ 216 x 111 x 45 mm

Dimensions PSA3020 / 3320 .................................................................................................................................................................. 135 x 65 x 30 mm

Dimensions PSA3165 ............................................................................................................................................................................ 285 x 179 x 45 mm

Permissible cable diameter PSA3052 / 3352 ........................................................................................................................................................... 52 mm

Permissible cable diameter PSA3020 / 3320 .....................................................................................

Permissible cable diameter PSA3165 .................................................................................................................................................................... 115 mm

Weight PSA3052 / 3352 ......................................................................................................................................................................................... ≤ 700 g

Weight PSA3020 / 3320 ......................................................................................................................................................................................... ≤ 300 g

Weight PSA3165 ................................................................................................................................................................................................... ≤ 1300 g

...................................................................... 20 mm

EDS309x_D00012_03_M_XXEN/11.2014

Page 56

Technical specifications

7.5 Technical specifications AGE185

Insulation co-ordination according to IEC 60664-1

Rated insulation voltage ...................................................................................................................................................................................... AC 1000 V

Rated impulse voltage/degree of pollution ............................................................................................................................................................... 4 kV/3

Nominal system voltage U

.......................................................................................................... 3AC/AC 42…460 Hz, 500…790 V, DC 400…960 V

Other

Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) ................................................................................................................ IP30

Connection type/wire: ................................................................................... Safety laboratory connectors with green-yellow connection wire 1 mm

Weight ..................................................................................................................................................................................................................... ≤ 200 g

Dimensions WxHxD: ............................................................................................................................................................................... 88.5 x 42 x 21 mm

7.6 Standards

Observe the applicable national and international standards. The series EDS309… complies with the standards:

 DIN VDE 0100-410 (VDE 0100-410)

Low-voltage electrical installations – Part 4-41: Protection for safety – Protection against electric shock (IEC 60364-4-41, modified); German version HD 60364-4-41

 DIN EN 61557-9

Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. – Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems (IEC 61557-9); German version EN 61557-9

 DIN EN 61010-1; VDE 0411-1

Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements (IEC 61010-1); German version EN 61010-1

EDS309x_D00012_03_M_XXEN/11.2014

Page 57

Technical specifications

430

310

340

145

155

ca. 1950

88.5

ca. 450

7.7 Dimension diagrams

All dimensions are given in mm.

Aluminium case

AGE185

EDS309x_D00012_03_M_XXEN/11.2014

Page 58

Technical specifications

0500010000EE N010P0024001609ABCD

IdL ALM [µA]

Idn ALM [mA]

CT type p -> PSA30xx P -> PSA33xx w->W/WR/WS W -> W/WR-8000 F -> WF...

Fault memory E->on A -> off

Buzzer: E->on A -> off

Idn Data logger Overwrite J->Yes N->No

Idn Data logger Change [%]

L of the CT

[H]

Rcu of the CT

[Ohm]

LCD contrast

Error Code: Output in hex format, binary coded

7.8 Status word

The status word can be checked by pressing the "INFO" button several times. This word contains the current configuration and provides an error code if there is a device error.

EDS309x_D00012_03_M_XXEN/11.2014

Page 59

Technical specifications

Type Supply voltage Nominal voltage Art.-No.

Insulation fault

locator

Locating current

injector

Measuring

clamps 20 mm

Measuring

clamps

52 mm

EDS3090 EDS195P PSA3020 PSA3052 B91082026

EDS3090PG EDS195P PGH185 PSA3020 PSA3052 AC 50...60 Hz, 230 V B91082021

EDS3090PG-13 EDS195P PGH185-13 PSA3020 PSA3052 AC 50...60 Hz, 90…132 V B91082022

EDS3091 EDS195P PSA3320 PSA3352 B91082027

EDS3091PG EDS195P PGH183 PSA3320 PSA3352 AC 50...60 Hz, 230 V B91082023

EDS3091PG-13 EDS195P PGH183-13 PSA3320 PSA3352 AC 50...60 Hz, 90…132 V B91082024

PGH183 PSA3320 PSA3352 AC 50...60 Hz, 230 V

AC 42...460 Hz, 20...265 V

und DC 20...308 V

PGH185 PSA3020 PSA3052 AC 50...60 Hz, 230 V

AC 42...460 Hz, 20...575 V

und DC 20...504 V

EDS3096PG EDS195P PGH186 PSA3020 PSA3052 AC 50...60 Hz, 230 V B91082025

EDS3096PG-13 EDS195P PGH186-13 PSA3020 PSA3052 AC 50...60 Hz, 90…132 V B91082029

PSA3165

B980852

AGE185

AC 42...460 Hz, 500...790 V,

DC 400...960 V

B980305

Adapter cable

BNC-PS2

B91082045

EDS-SET B91082007

Plug power

supply with USB

connector

A167054

DC 5 V for external supply of the EDS195P via µUSB connector

Measuring clamp 115 mm for EDS3090... and EDS3096...

AC 42...460 Hz, 20...575 V

und DC 20...504 V

AC 42...460 Hz, 20...265 V

und DC 20...308 V

EDS3092PG

AC 42...460 Hz, 0...575 V

und DC 0...504 V

EDS195P B91082030

Items supplied

Optional Accessories

BNC T-piece and 2 BNC cables for fault location in diode-decoupled systems

Coupling device for increasing the voltage range of the PGH185/186

Adapter cable for operating a WF current transformer on the EDS195P

Type Supply voltage Nominal voltage Art.-No.

,QVXODWLRQIDXOW

ORFDWRU

/RFDWLQJFXUUHQW

LQMHFWRU

0HDVXULQJ

FODPSVPP

0HDVXULQJ

FODPSV

PP

('6 ('63 36$ 36$ %

('63* ('63 3*+ 36$ 36$ $&+]9 %

('63* ('63 3*+ 36$ 36$ $&+]«9 %

('6 ('63 36$ 36$ %

('63* ('63 3*+ 36$ 36$ $&+]9 %

('63* ('63 3*+ 36$ 36$ $&+]«9 %

3*+ 36$ 36$ $&+]9

$&+]9

XQG'&9

3*+ 36$ 36$ $&+]9

$&+]9

XQG'&9

('63* ('63 3*+ 36$ 36$ $&+]9 %

('63* ('63 3*+ 36$ 36$ $&+]«9 %

('639 ('63 3*+ ± [36$ $&+]9 %

36$

%

$*(

$&+]9

'&9

%

$GDSWHUFDEOH

%1&36

%

('66(7 %

3OXJSRZHU

VXSSO\ZLWK86%

FRQQHFWRU

$

%

Items supplied

Optional Accessories

%1&

7HHFRQQHFWRUDQG%1&FDEOHVIRUIDXOWORFDWLRQLQGLRGHGHFRXSOHGV\VWHPV

&RXSOLQJGHYLFHIRULQFUHDVLQJWKHYROWDJHUDQJHRIWKH3*+

$GDSWHUFDEOHIRURSHUDWLQJD:)FXUUHQWWUDQVIRUPHURQWKH('63

'&9IRUH[WHUQDOVXSSO\RIWKH('63YLD86%FRQQHFWRU

0HDVXULQJFODPSPPIRU('6DQG('6

$&+]9

XQG'&9

$&+]9

XQG'&9

('63* ('63

$&+]9

XQG'&9

7.9 Ordering data including accessories

EDS309x_D00012_03_M_XXEN/11.2014

Page 60

7.10 Component list

Device type

Aluminium case with carrying handle

Operating manual

Insulation fault locator

Clamping connector on 4 mm

Adapter BNC/4mm connector for curr. transform.

Adapter BNC-PS2 for WF-CT,

optional

Plug power supply for EDS195P

Locating current injector

Supply cable for PGH18...

Safety measuring cable, black

Safety measuring cable, green/yellow

Safety claw grip, black

Safety claw grip, green/yellow

Coupling device,

optional

(EDS3096PV only: in the scope of delivery)

Measuring clamps 20 mm

Measuring clamps 52 mm

Measuring clamps 115 mm,

optional

EDS-Set,

optional

EDS3090 1 1 EDS195P 1111 PSA3020 PSA3052 PSA3165 1

EDS3090PG 1 1 EDS195P 1111 PGH185 13131AGE185 PSA3020 PSA3052 PSA3165 1

EDS3090PG-13 1 1 EDS195P 1111PGH185-13 13131AGE185 PSA3020 PSA3052 PSA3165 1

EDS3091 1 1 EDS195P 1111 PSA3320 PSA3352 1

EDS3091PG 1 1 EDS195P 1111 PGH183 13131 PSA3320 PSA3352 1

EDS3091PG-13 1 1 EDS195P 1111PGH183-13 13131 PSA3320 PSA3352 1

EDS3096PG 1 1 EDS195P 1111 PGH186 13131AGE185 PSA3020 PSA3052 PSA3165 1

EDS3096PG-13 1 1 EDS195P 1111PGH186-13 13131AGE185 PSA3020 PSA3052 PSA3165 1

211

PSA3320

PSA3020

PSA3352

PSA3052

11 26261

PGH183

PGH185

Components EDS309...

EDS195P with Accessories PGH18... with accessories for Measuring clamps

EDS3092PG 1 1 EDS195P

Technical specifications

EDS309x_D00012_03_M_XXEN/11.2014

Page 61

8. Frequently Asked Questions

 The ISOMETER® indicates an insulation fault but this fault cannot be located using the

EDS309…. What could cause this problem?

– Individual outgoing circuits in the IT system monitored may be earthed. Check all outgoing

circuits for unintentional earthing. The N conductor for the transformer that supplies the IT system must also not be earthed.

– There may not be any locating current flowing. Check the earth connection on the locating

current injector PGH18…, IRDH575 for correct connection.

– The PE conductor may have been unintentionally included in the cables in the measuring

clamp or the measuring current transformer.

 EDS195P displays the error message "No CT connected". What could cause this problem?

– A measuring clamp is not connected or it is faulty.

– A measuring clamp or a measuring current transformer of the incorrect type has been con-

nected to the EDS195P, see table on page 33.

 In case of residual current measurement (I

ard display. What could cause this problem?

– The menu item "2. Settings/ 7. Harmonics:" is not activated.

) the harmonic H… does not appear in the stand-

Δn

EDS309x_D00012_03_M_XXEN/11.2014

Page 62

Frequently Asked Questions

EDS309x_D00012_03_M_XXEN/11.2014

Page 63

INDEX

Accessories

- optional

AGE185 Alarm is also output audibly

Alarm LED Alarms during EDS measurement or RCM

measurement

Buttons on the EDS195P 33

Cables

- screened Characteristics, response sensitivity Charge state of the rechargeable battery

36 Checking Info menu Checking the actual response values

35 Checking the device type Checking the software version Clamp change Clamp selection button Component list Connecting the locating current injector

42 Connection for external power supply unit

34 Connection to an IT system Coupling device AGE185

Deleting fault memory 34 Device and measuring errors Device-specific safety instructions Diode-decoupled DC system Disconnecting insulation monitoring de-

vice Display lighting Displaying harmonics Down button 34

36, 39

33,

33, 36

28, 29

31, 47

EDS mode 14 EDS195P

- controls

- Settings

- System

Menu structure

Factory settings 38 Fault circuit Fault memory M is activated Frequently Asked Questions

HOLD button 34 Hold function activated

Indication of the locating current pulse 36 INFO button Insulation fault location

Insulation fault locator 14 Intended use

- in a system without a permanently installed EDS system

- in diode-decoupled DC systems

- with permanently installed EDS sys-

tem

Leakage currents 17 Locating current Locating current limiting

Malfunction 38 Measuring clamps

- handling

Measuring current transformers

- commercially available

Measuring harmonics Measuring residual current Menu item

- Harmonics

- IΔL alarms

- IΔn logger

41 41 42

14, 49

Navigating in the menu on the EDS195P

Opening the menu 33 Operating mode button Operating principle Operating the EDS195P Ordering data Outline drawings

Permanently installed EDS system 31 PGH18...

- controls

PLC Power supply for the EDS195P Practical usage

Quick check on the response values 35

RCM mode

- function

Rechargeable batteries 54 Rechargeable battery

- changing Reduced locating current RESET button Residual currents

- path Response characteristics for control circuits

Response characteristics for main circuits

Saving the measured value using HOLD 34

EDS309x_D00012_03_M_XXEN/11.2014

Page 64

Selecting the current transformer 33 Selecting the operating mode Setting language Settings Significance of the display elements Standard display for EDS measurement Standard displays on the EDS195P Standards Status word Switch on-off System components Systems

- electrically isolated