Siemens SIPROTEC 4,SIPROTEC 7RW80 User Manual

Preface

Table of Contents

SIPROTEC 4
Voltage and Frequency

Protection 7RW80

V4.6

Manual

Introduction

Functions

Mounting and Commissioning

Technical Data

Ordering Information and Accessories

Terminal Assignments

Connection Examples
Default Settings and Protocol-dependent

Functions

Functions, Settings, Information

1
2
3
4

A

B

C

D

E

C53000-G1140-C233-4

Literature

Glossary

Index

i

i

NOTE

For your own safety, observe the warnings and safety instructions contained in this document, if available.

Disclaimer of Liability

We have checked the contents of this manual against the
hardware and software described. However, deviations
from the description cannot be completely ruled out, so
that no liability can be accepted for any errors or omissions
contained in the information given.

The information given in this document is reviewed regu­larly and any necessary corrections will be included in
subsequent editions. We appreciate any suggested
improvements.

We reserve the right to make technical improvements
without notice.

Document version V04.03.00
Release date 07.2018

Copyright

Copyright © Siemens AG 2018. All rights reserved.
Dissemination or reproduction of this document, or evalua-

tion and communication of its contents, is not authorized
except where expressly permitted. Violations are liable for
damages. All rights reserved, particularly for the purposes
of patent application or trademark registration.

Registered Trademarks

SIPROTEC, SINAUT, SICAM and DIGSI are registered trade­marks of Siemens AG. Other designations in this manual
might be trademarks whose use by third parties for their
own purposes would infringe the rights of the owner.

Preface

Purpose of the Manual

This manual describes the functions, operation, installation, and commissioning of devices 7RW80. In partic­ular, one will find:

Information regarding the configuration of the scope of the device and a description of the device func-

•

tions and settings → Chapter 2;

Instructions for Installation and Commissioning → Chapter 3;

•

Compilation of the Technical Data → Chapter 4;

•

As well as a compilation of the most significant data for advanced users → Appendix.

•

General information with regard to design, configuration, and operation of SIPROTEC 4 devices are set out in
the SIPROTEC 4 System Description /1/ SIPROTEC 4 System Description.

Target Audience

Protection-system engineers, commissioning engineers, persons entrusted with the setting, testing and main­tenance of selective protection, automation and control equipment, and operating personnel in electrical
installations and power plants.

Scope

This manual applies to: SIPROTEC 4 Voltage and Frequency Protection 7RW80; Firmware-Version V4.6.

Indication of Conformity

Additional Standards IEEE Std C37.90 (see Chapter 4 "Technical Data")

This product is UL-certified according to the Technical Data. file E194016

[ul-schutz-7sx80-100310, 1, --_--]

This product complies with the directive of the Council of the European Communities on the
approximation of the laws of the Member States relating to electromagnetic compatibility
(EMC Council Directive 2004/108/EC) and concerning electrical equipment for use within
specified voltage limits (Low-voltage Directive 2006/95 EC).

This conformity is proved by tests conducted by Siemens AG in accordance with the Council
Directive in agreement with the generic standards EN 61000-6-2 and EN 61000-6-4 for EMC
directive, and with the standard EN 60255-27 for the low-voltage directive.

The device has been designed and produced for industrial use.
The product conforms with the international standards of the series IEC 60255 and the

German standard VDE 0435.

SIPROTEC 4, 7RW80, Manual
C53000-G1140-C233-4, Edition 07.2018

3

!

!

!

Preface

Additional Support

For questions about the system, please contact your Siemens sales partner.

Support

Our Customer Support Center provides a 24-hour service.

Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]

Training Courses

Inquiries regarding individual training courses should be addressed to our Training Center:

Siemens AG
Siemens Power Academy TD

Humboldtstraße 59
90459 Nürnberg
Germany

Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: www.siemens.com/poweracademy

Notes on Safety

This document is not a complete index of all safety measures required for operation of the equipment (module
or device). However, it comprises important information that must be followed for personal safety, as well as
to avoid material damage. Information is highlighted and illustrated as follows according to the degree of
danger:

DANGER

DANGER means that death or severe injury will result if the measures specified are not taken.

²

WARNING

WARNING means that death or severe injury may result if the measures specified are not taken.

²

CAUTION

Comply with all instructions, in order to avoid death or severe injuries.

Comply with all instructions, in order to avoid death or severe injuries.

CAUTION means that medium-severe or slight injuries can occur if the specified measures are not taken.

Comply with all instructions, in order to avoid moderate or minor injuries.

²

4 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

NOTICE

i

i

NOTICE means that property damage can result if the measures specified are not taken.

Comply with all instructions, in order to avoid property damage.

²

NOTE

Important information about the product, product handling or a certain section of the documentation
which must be given particular attention.

Qualified Electrical Engineering Personnel

Only qualified electrical engineering personnel may commission and operate the equipment (module, device)
described in this document. Qualified electrical engineering personnel in the sense of this manual are people
who can demonstrate technical qualifications as electrical technicians. These persons may commission,
isolate, ground and label devices, systems and circuits according to the standards of safety engineering.

Proper Use

The equipment (device, module) may be used only for such applications as set out in the catalogs and the
technical description, and only in combination with third-party equipment recommended and approved by
Siemens.

Problem-free and safe operation of the product depends on the following:

Proper transport

•

Proper storage, setup and installation

•

Proper operation and maintenance

•

When electrical equipment is operated, hazardous voltages are inevitably present in certain parts. If proper
action is not taken, death, severe injury or property damage can result:

The equipment must be grounded at the grounding terminal before any connections are made.

•

All circuit components connected to the power supply may be subject to dangerous voltage.

•

Hazardous voltages may be present in equipment even after the supply voltage has been disconnected

•

(capacitors can still be charged).

Preface

Operation of equipment with exposed current-transformer circuits is prohibited. Before disconnecting the

•

equipment, ensure that the current-transformer circuits are short-circuited.

The limiting values stated in the document must not be exceeded. This must also be considered during

•

testing and commissioning.

Typographic and Symbol Conventions

The following text formats are used when literal information from the device or to the device appear in the
text flow:

Parameter Names

Designators of configuration or function parameters which may appear word-for-word in the display of the
device or on the screen of a personal computer (with operation software DIGSI), are marked in bold letters in
monospace type style. The same applies to titles of menus.

1234A

Parameter addresses have the same character style as parameter names. Parameter addresses contain the
suffix A in the overview tables if the parameter can only be set in DIGSI via the option Display additional
settings.

Parameter Options

Possible settings of text parameters, which may appear word-for-word in the display of the device or on the
screen of a personal computer (with operation software DIGSI), are additionally written in italics. The same
applies to the options of the menus.

SIPROTEC 4, 7RW80, Manual 5
C53000-G1140-C233-4, Edition 07.2018

Preface

Indications

Designators for information, which may be output by the relay or required from other devices or from the
switch gear, are marked in a monospace type style in quotation marks.

Deviations may be permitted in drawings and tables when the type of designator can be obviously derived
from the illustration.

The following symbols are used in drawings:

Device-internal logical input signal

Device-internal logical output signal

Internal input signal of an analog quantity

External binary input signal with number (binary input,
input indication)
External binary output signal with number
(example of a value indication)

External binary output signal with number (device indication) used as
input signal

Example of a parameter switch designated FUNCTION with address
1234 and the possible settings ON and OFF

Besides these, graphical symbols are used in accordance with IEC 60617-12 and IEC 60617-13 or similar.
Some of the most frequently used are listed below:

Analog input variable

AND-gate operation of input values

OR-gate operation of input values

Exclusive OR gate (antivalence): output is active, if only one of the
inputs is active

Coincidence gate: output is active, if both inputs are active or inactive
at the same time

Dynamic inputs (edge-triggered) above with positive, below with
negative edge

Formation of one analog output signal from a number of analog input
signals

Limit stage with setting address and parameter designator (name)

Timer (pickup delay T, example adjustable) with setting address and
parameter designator (name)

6 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

Timer (dropout delay T, example non-adjustable)

Dynamic triggered pulse timer T (monoflop)

Static memory (SR flipflop) with setting input (S), resetting input (R),
output (Q) and inverted output (Q), setting input dominant

Static memory (RS-flipflop) with setting input (S), resetting input (R),
output (Q) and inverted output (Q), resetting input dominant

Preface

SIPROTEC 4, 7RW80, Manual 7
C53000-G1140-C233-4, Edition 07.2018

8 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

Table of Contents

Preface..........................................................................................................................................................3

1 Introduction................................................................................................................................................15

1.1 Overall Operation..............................................................................................................16

1.2 Application Scope............................................................................................................. 18

1.3 Characteristics.................................................................................................................. 20

2 Functions.................................................................................................................................................... 23

2.1 General.............................................................................................................................24

2.1.1 Functional Scope......................................................................................................... 24

2.1.1.1 Functional Description........................................................................................... 24

2.1.1.2 Setting Notes......................................................................................................... 24

2.1.1.3 Settings................................................................................................................. 25

2.1.2 Device, General Settings.............................................................................................. 26

2.1.2.1 Functional Description........................................................................................... 26

2.1.2.2 Setting Notes......................................................................................................... 27

2.1.2.3 Settings................................................................................................................. 27

2.1.2.4 Information List..................................................................................................... 27

2.1.3 Power System Data 1...................................................................................................28

2.1.3.1 Functional Description........................................................................................... 28

2.1.3.2 Setting Notes......................................................................................................... 29

2.1.3.3 Settings................................................................................................................. 31

2.1.3.4 Information List..................................................................................................... 32

2.1.4 Oscillographic Fault Records........................................................................................ 32

2.1.4.1 Functional Description........................................................................................... 32

2.1.4.2 Setting Notes......................................................................................................... 33

2.1.4.3 Settings................................................................................................................. 34

2.1.4.4 Information List..................................................................................................... 34

2.1.5 Settings Groups........................................................................................................... 34

2.1.5.1 Functional Description........................................................................................... 34

2.1.5.2 Setting Notes......................................................................................................... 34

2.1.5.3 Settings................................................................................................................. 35

2.1.5.4 Information List..................................................................................................... 35

2.1.6 Power System Data 2...................................................................................................35

2.1.6.1 Functional Description........................................................................................... 35

2.1.6.2 Setting Notes......................................................................................................... 35

2.1.6.3 Settings................................................................................................................. 35

2.1.6.4 Information List..................................................................................................... 35

2.1.7 EN100-Module............................................................................................................ 36

2.1.7.1 Functional Description........................................................................................... 36

2.1.7.2 Setting Notes......................................................................................................... 36

2.1.7.3 Information List..................................................................................................... 36

2.2 Voltage Protection 27, 59..................................................................................................37

2.2.1 Measurement Principle................................................................................................ 37

SIPROTEC 4, 7RW80, Manual 9
C53000-G1140-C233-4, Edition 07.2018

Table of Contents

2.2.2 Overvoltage Protection 59........................................................................................... 38

2.2.3 Undervoltage Protection 27......................................................................................... 39

2.2.4 Setting Notes...............................................................................................................41

2.2.5 Settings.......................................................................................................................44

2.2.6 Information List...........................................................................................................45

2.3 Frequency Protection 81 O/U.............................................................................................46

2.3.1 Functional Description.................................................................................................46

2.3.2 Setting Notes...............................................................................................................47

2.3.3 Settings.......................................................................................................................48

2.3.4 Information List...........................................................................................................49

2.4 Load Restoration............................................................................................................... 50

2.4.1 Functional Description.................................................................................................50

2.4.2 Setting Notes...............................................................................................................54

2.4.3 Settings.......................................................................................................................57

2.4.4 Information List...........................................................................................................60

2.5 Supervision Functions....................................................................................................... 61

2.5.1 Measurement Supervision........................................................................................... 61

2.5.1.1 General..................................................................................................................61

2.5.1.2 Hardware Monitoring ............................................................................................ 61

2.5.1.3 Software Monitoring ............................................................................................. 61

2.5.1.4 Monitoring of the Transformer Circuits................................................................... 62

2.5.1.5 Broken Wire Monitoring of Voltage Transformer Circuits......................................... 63

2.5.1.6 Setting Notes......................................................................................................... 64

2.5.1.7 Settings................................................................................................................. 64

2.5.1.8 Information List..................................................................................................... 65

2.5.2 Trip Circuit Supervision 74TC....................................................................................... 65

2.5.2.1 Functional Description........................................................................................... 65

2.5.2.2 Setting Notes......................................................................................................... 68

2.5.2.3 Settings................................................................................................................. 68

2.5.2.4 Information List..................................................................................................... 69

2.5.3 Malfunction Responses of the Monitoring Functions.................................................... 69

2.5.3.1 Functional Description........................................................................................... 69

2.6 Flexible Protection Functions.............................................................................................71

2.6.1 Functional Description.................................................................................................71

2.6.2 Setting Notes...............................................................................................................74

2.6.3 Settings.......................................................................................................................77

2.6.4 Information List...........................................................................................................78

2.7 Synchrocheck................................................................................................................... 80

2.7.1 Allgemeines................................................................................................................ 80

2.7.2 Functional Sequence................................................................................................... 81

2.7.3 De-energized Switching...............................................................................................82

2.7.4 Direct Command / Blocking..........................................................................................83

2.7.5 Interaction with Control and External Control...............................................................84

2.7.6 Setting Notes...............................................................................................................84

2.7.7 Settings.......................................................................................................................88

2.7.8 Information List...........................................................................................................89

2.8 24 Overexcit. Protection (Volt/Hertz)................................................................................. 91

2.8.1 Functional Description.................................................................................................91

2.8.2 Setting Notes...............................................................................................................93

10 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

Table of Contents

2.8.3 Settings.......................................................................................................................95

2.8.4 Information List...........................................................................................................95

2.9 Jump of Voltage Vector..................................................................................................... 96

2.9.1 Functional Description.................................................................................................96

2.9.2 Setting Notes...............................................................................................................98

2.9.3 Settings.......................................................................................................................99

2.9.4 Information List...........................................................................................................99

2.10 Phase Rotation................................................................................................................ 100

2.10.1 Functional Description...............................................................................................100

2.10.2 Setting Notes.............................................................................................................100

2.11 Function Logic................................................................................................................ 101

2.11.1 Pickup Logic of the Entire Device................................................................................101

2.11.2 Tripping Logic of the Entire Device.............................................................................101

2.11.3 Setting Notes.............................................................................................................102

2.12 Auxiliary Functions..........................................................................................................103

2.12.1 Message Processing...................................................................................................103

2.12.1.1 LED Displays and Binary Outputs (Output Relays)..................................................103

2.12.1.2 Information on the Integrated Display (LCD) or Personal Computer....................... 103

2.12.1.3 Information to a Control Center............................................................................105

2.12.2 Statistics....................................................................................................................105

2.12.2.1 Functional Description......................................................................................... 105

2.12.2.2 Setting Notes....................................................................................................... 105

2.12.2.3 Information List................................................................................................... 105

2.12.3 Measurement............................................................................................................105

2.12.3.1 Display of Measured Values.................................................................................. 106

2.12.3.2 Transfer of Measured Values................................................................................ 107

2.12.3.3 Information List................................................................................................... 107

2.12.4 Min/Max Measurement Setup.................................................................................... 108

2.12.4.1 Functional Description......................................................................................... 108

2.12.4.2 Setting Notes....................................................................................................... 108

2.12.4.3 Settings............................................................................................................... 108

2.12.4.4 Information List................................................................................................... 108

2.12.5 Set Points for Measured Values.................................................................................. 109

2.12.5.1 Setting Notes....................................................................................................... 109

2.12.6 Set Points for Statistic................................................................................................ 109

2.12.6.1 Functional Description......................................................................................... 109

2.12.6.2 Setting Notes....................................................................................................... 109

2.12.6.3 Information List................................................................................................... 110

2.12.7 Energy Metering........................................................................................................110

2.12.7.1 Setting Notes....................................................................................................... 110

2.12.7.2 Settings............................................................................................................... 110

2.12.7.3 Information List................................................................................................... 110

2.12.8 Commissioning Aids.................................................................................................. 110

2.12.8.1 Functional Description......................................................................................... 110

2.13 Breaker Control...............................................................................................................112

2.13.1 Control Device...........................................................................................................112

2.13.1.1 Functional Description......................................................................................... 112

2.13.1.2 Informationsübersicht..........................................................................................113

2.13.2 Types of Commands.................................................................................................. 113

2.13.2.1 Functional Description......................................................................................... 113

SIPROTEC 4, 7RW80, Manual 11
C53000-G1140-C233-4, Edition 07.2018

Table of Contents

2.13.3 Command Sequence..................................................................................................113

2.13.3.1 Functional Description......................................................................................... 114

2.13.4 Switchgear Interlocking............................................................................................. 114

2.13.4.1 Functional Description......................................................................................... 114

2.13.5 Command Logging.................................................................................................... 118

2.13.5.1 Functional Description......................................................................................... 119

2.14 Notes on Device Operation..............................................................................................120

2.14.1 Different operation....................................................................................................120

3 Mounting and Commissioning................................................................................................................. 123

3.1 Mounting and Connections............................................................................................. 124

3.1.1 Configuration Information......................................................................................... 124

3.1.2 Hardware Modifications.............................................................................................127

3.1.2.1 Disassembly.........................................................................................................127

3.1.2.2 Connections of the Voltage Terminals...................................................................131

3.1.2.3 Interface Modules................................................................................................ 132

3.1.2.4 Reassembly..........................................................................................................134

3.1.3 Installation................................................................................................................ 135

3.1.3.1 General................................................................................................................135

3.1.3.2 Panel Flush Mounting...........................................................................................136

3.1.3.3 Cubicle Mounting.................................................................................................137

3.1.3.4 Panel Surface Mounting....................................................................................... 138

3.2 Checking Connections.....................................................................................................140

3.2.1 Checking the Data Connections of the Interfaces........................................................140

3.2.2 Checking the System Connections............................................................................. 142

3.3 Commissioning............................................................................................................... 144

3.3.1 Test Mode and Transmission Block.............................................................................145

3.3.2 Testing the System Interface .....................................................................................145

3.3.3 Configuring Communication Modules........................................................................146

3.3.4 Checking the Status of Binary Inputs and Outputs...................................................... 150

3.3.5 Testing User-Defined Functions..................................................................................152

3.3.6 Voltage and Phase Rotation Testing........................................................................... 152

3.3.7 Polarity Check for Voltage Input V3.............................................................................153

3.3.8 Trip/Close Tests for the Configured Operating Devices................................................ 155

3.3.9 Creating Oscillographic Recordings for Tests.............................................................. 156

3.4 Final Preparation of the Device........................................................................................157

4 Technical Data.......................................................................................................................................... 159

4.1 General Device Data........................................................................................................160

4.1.1 Analog Inputs............................................................................................................160

4.1.2 Auxiliary voltage........................................................................................................160

4.1.3 Binary Inputs and Outputs......................................................................................... 160

4.1.4 Communication Interfaces.........................................................................................161

4.1.5 Electrical Tests...........................................................................................................164

4.1.6 Mechanical Tests....................................................................................................... 165

4.1.7 Climatic Stress Tests.................................................................................................. 166

4.1.8 Service Conditions..................................................................................................... 167

4.1.9 Constructive Design...................................................................................................167

4.1.10 UL certification conditions......................................................................................... 167

12 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

Table of Contents

4.2 Voltage Protection.......................................................................................................... 169

4.3 Frequency Protection 81 O/U...........................................................................................171

4.4 Load Restoration............................................................................................................. 172

4.5 Flexible Protection Functions ..........................................................................................173

4.6 Synchrocheck 25 ............................................................................................................175

4.7 Overecxitation Protection 24...........................................................................................177

4.8 Jump of Voltage Vector................................................................................................... 179

4.9 User-defined Functions (CFC).......................................................................................... 180

4.10 Auxiliary Functions..........................................................................................................185

4.11 Switching Device Control................................................................................................ 188

4.12 Dimensions.....................................................................................................................189

4.12.1 Panel Flush and Cubicle Mounting (Housing Size 1/6) ................................................189

4.12.2 Panel Surface Mounting (Housing Size 1/6) ............................................................... 190

4.12.3 Bottom view..............................................................................................................190

A Ordering Information and Accessories.....................................................................................................191

A.1 Ordering Information 7RW80 V4.6 ................................................................................. 192

A.2 Accessories.....................................................................................................................195

B Terminal Assignments..............................................................................................................................197

B.1 7RW80 — Housing for Panel Flush Mounting or Cubicle Mounting...................................198

B.2 7RW80 — Housing for panel surface mounting................................................................199

C Connection Examples............................................................................................................................... 201

C.1 Connection Examples for Voltage Transformers...............................................................202

D Default Settings and Protocol-dependent Functions............................................................................... 207

D.1 LEDs............................................................................................................................... 208

D.2 Binary Input.................................................................................................................... 209

D.3 Binary Output................................................................................................................. 210

D.4 Function Keys................................................................................................................. 211

D.5 Default Display................................................................................................................212

D.6 Protocol-dependent Functions.........................................................................................213

E Functions, Settings, Information..............................................................................................................215

E.1 Functional Scope............................................................................................................ 216

E.2 Settings.......................................................................................................................... 217

E.3 Information List.............................................................................................................. 226

E.4 Group Indications............................................................................................................246

E.5 Measured Values.............................................................................................................247

Literature.................................................................................................................................................. 249

Glossary.................................................................................................................................................... 251

Index.........................................................................................................................................................261

SIPROTEC 4, 7RW80, Manual 13
C53000-G1140-C233-4, Edition 07.2018

14 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

1

Introduction

The device family SIPROTEC 7RW80 devices is introduced in this section. An overview of the devices is
presented in their application, characteristics, and scope of functions.

1.1 Overall Operation 16

1.2 Application Scope 18

1.3 Characteristics 20

SIPROTEC 4, 7RW80, Manual 15
C53000-G1140-C233-4, Edition 07.2018

Introduction

1.1 Overall Operation

1.1

Analog Inputs

Overall Operation

The Voltage and Frequency protection SIPROTEC 7RW80 is equipped with a high performance microprocessor.
This provides numerical processing of all functions in the device, from the acquisition of the measured values
up to the output of commands to the circuit breakers. Figure 1-1 shows the basic structure of the device
7RW80.

The measuring inputs MI transform the voltages derived from the instrument transformers and match them to
the internal signal levels for processing in the device. Three voltage inputs are available in the MI section.

[hw-struktur-7rw80-100519, 1, en_US]

Figure 1-1

Voltage inputs can either be used to measure the three phase-to-ground voltages, or two phase-to-phase
voltages and the displacement voltage (e–n voltage) or for any other voltage. It is also possible to connect two
phase-to-phase voltages in open-delta connection.

The analog input quantities are passed on to the input amplifiers (IA). The input amplifier IA element provides
a high-resistance termination for the input quantities. It consists of filters that are optimized for measured­value processing with regard to bandwidth and processing speed.

The analog-to-digital (AD) transformer group consists of a an analog-to-digital converter and memory compo­nents for the transmission of data to the microcomputer.

Microcomputer System

Apart from processing the measured values, the microcomputer system (μC) also executes the actual protec­tion and control functions. They especially include:

16 SIPROTEC 4, 7RW80, Manual

Hardware structure of the numerical Voltage and Frequency Protection Device 7RW80

C53000-G1140-C233-4, Edition 07.2018

Filtering and preparation of the measured quantities

•

Continuous monitoring of the measured quantities

•

Monitoring of the pickup conditions for the individual protective functions

•

Interrogation of limit values and sequences in time

•

Control of signals for the logic functions

•

Output of control commands for switching devices

•

Recording of messages, fault data and fault values for analysis

•

Management of the operating system and the associated functions such as data recording, real-time

•

clock, communication, interfaces, etc.

The information is distributed via output amplifiers (OA).

•

Binary Inputs and Outputs

The computer system obtains external information through the binary input/output boards (inputs and
outputs). The computer system obtains information from the system (e.g remote resetting) or from external
equipment (e.g. blocking commands). These outputs include, in particular, trip commands to circuit breakers
and signals for the remote indication of important events and conditions.

Front Panel

Introduction

1.1 Overall Operation

Information such as messages related to events, states, measured values and the functional status of the
device are visualized by light-emitting diodes (LEDs) and a display screen (LCD) on the front panel.

Integrated control and numeric keys in conjunction with the LCD enable interaction with the remote device.
These elements can be used to access the device for information such as configuration and setting parame­ters. Similarly, setting parameters can be accessed and changed if needed.

In addition, control of circuit breakers and other equipment is possible from the front panel of the device.

Interfaces

Communication with a PC can be implemented via the USB DIGSI interface using the DIGSI software, allowing
all device functions to be easily executed.

Communication with a PC is also possible via port A (Ethernet interface) and port B (System/Service interface)
using DIGSI.

In addition to the device communication via DIGSI, port B can also be used to transmit all device data to a
central evaluator or a control center. This interface may be provided with various protocols and physical trans­mission schemes to suit the particular application.

Power Supply

A power supply unit (Vaux or PS) delivers power to the functional units using the different voltage levels.
Voltage dips may occur if the voltage supply system (substation battery) becomes short-circuited. Usually,
they are bridged by a capacitor (see also Technical Data).

A buffer battery is located under the flap at the lower end of the front cover.

SIPROTEC 4, 7RW80, Manual 17
C53000-G1140-C233-4, Edition 07.2018

Introduction

1.2 Application Scope

1.2

Protection Functions

Control Functions

Application Scope

The digital voltage and frequency protection SIPROTEC 4 7RW80 is a versatile device designed for protection,
control, and monitoring of transformers, electrical machines and distribution systems.

The device can be used for

System decoupling or for load shedding if ever there is a risk of a system collapse as a result of inadmis-

•

sibly large frequency drops

Monitoring voltage and frequency thresholds

•

Voltage, frequency and overexcitation protection can be used to protect generators and transformers in the
event of

Defective voltage control or defective frequency control

•

Full load rejection

•

Islanding generation systems.

•

Multilevel voltage and frequency protection is the basic function of the device.
Further protection functions included are load restoration, synchrocheck, overexcitation protection, vector

jump and flexible protective functions.

The device provides a control function which can be accomplished for activating and deactivating the switch­gear via operator buttons, port B, binary inputs and - using a PC and the DIGSI software - via the front inter­face.

The status of the primary equipment can be transmitted to the device via auxiliary contacts connected to
binary inputs. The present status (or position) of the primary equipment can be displayed on the device, and
used for interlocking or alarm condition monitoring. The number of operating equipments to be switched is
limited by the binary inputs and outputs available in the device or the binary inputs and outputs allocated for
the switch position indications. Depending on the primary equipment being controlled, one binary input
(single point indication) or two binary inputs (double point indication) may be used for this process.

The capability of switching primary equipment can be restricted by a setting associated with switching
authority (Remote or Local), and by the operating mode (interlocked/non-interlocked, with or without pass­word request).

Processing of interlocking conditions for switching (e.g. switchgear interlocking) can be established with the
aid of integrated, user-configurable logic functions.

Messages and Measured Values; Recording of Event and Fault Data

The operational indications provide information about conditions in the power system and the device. Meas­urement quantities and values that are calculated can be displayed locally and communicated via the serial
interfaces.

Device messages can be assigned to a number of LEDs on the front cover (allocatable), can be externally
processed via output contacts (allocatable), linked with user-definable logic functions and/or issued via serial
interfaces.

During a fault (system fault) important events and changes in conditions are saved in fault protocols (Event
Log or Trip Log). Instantaneous fault values are also saved in the device and may be analyzed subsequently.

Communication

The following interfaces are available for communication with external operating, control and memory
systems.

The USB DIGSI interface on the front cover serves for local communication with a PC. By means of the
SIPROTEC 4 operating software DIGSI, all operational and evaluation tasks can be executed via this operator
interface, such as specifying and modifying configuration parameters and settings, configuring user-specific

18 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

Introduction

1.2 Application Scope

logic functions, retrieving operational messages and measured values, inquiring device conditions and meas­ured values, issuing control commands.

Depending on the ordered variant, additional interfaces are located at the bottom of the device. They serve for
establishing extensive communication with other digital operating, control and memory components:

Port A serves for DIGSI communication directly on the device or via network.
Port B serves for central communication between the device and a control center. It can be operated via data

lines or fiber optic cables. For the data transfer, there are standard protocols in accordance with IEC 60870-5­103 available. The integration of the devices into the SINAUT LSA and SICAM automation systems can also be
implemented with this profile.

Alternatively, additional connection options are available with PROFIBUS DP and the DNP3.0 and MODBUS
protocols. If an EN100 module is available, you can use the protocol IEC 61850.

SIPROTEC 4, 7RW80, Manual 19
C53000-G1140-C233-4, Edition 07.2018

Introduction

1.3 Characteristics

1.3

General Characteristics

Characteristics

Powerful 32-bit microprocessor system

•

Complete digital processing and control of measured values, from the sampling of the analog input quan-

•

tities to the initiation of outputs, for example, tripping or closing circuit breakers or other switchgear
devices

Total electrical separation between the internal processing stages of the device and the external trans-

•

former, control, and DC supply circuits of the system because of the design of the binary inputs, outputs,
and the DC or AC converters

Easy device operation through an integrated operator panel or by means of a connected personal

•

computer running DIGSI

Continuous calculation and display of measured and metered values on the front of the device

•

Storage of min./max. measured values (slave pointer function) and storage of long-term mean values

•

Recording of event and fault data for the last 8 system faults (fault in a network) with real-time informa-

•

tion as well as instantaneous values for fault recording for a maximum time range of 20 s

Constant monitoring of the measured quantities, as well as continuous self-diagnostics covering the

•

hardware and software

Communication with SCADA or substation controller equipment via serial interfaces through the choice

•

of data cable, modem, or optical fibers

Battery-buffered clock which can be synchronized via a synchronization signal at the binary input or via a

•

protocol

Statistics: Recording of the number of trip signals instigated by the device.

•

Commissioning aids such as connection and direction check, status indication of all binary inputs and

•

outputs, easy testing of port B, and influencing of information at port B during test operation.

Voltage Protection 27, 59

Three-element undervoltage detection via the positive sequence system of the voltages, phase-to-phase

•

or phase-ground voltages

Separate overvoltage detection of the voltages applied or detection of the positive or negative sequence

•

component of the voltages

Settable dropout ratio for all elements of the undervoltage and overvoltage protection

•

User-defined characteristic

•

Frequency Protection 81 O/U

Monitoring of falling below (f<) and/or exceeding (f>) with 4 frequency limits and time delays that are

•

independently adjustable

Insensitive to harmonics and abrupt phase angle changes

•

Adjustable undervoltage threshold.

•

Load Restoration

4 separately adjustable load restoration stages

•

Individually assignable low frequency stages, which start the load restoration stage (1 to 4 for each load

•

restoration element)

Settable dropout ratio for all stages of the load restoration

•

Monitoring of the settable restoration cycles (no ON/OFF chattering)

•

20 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

Monitoring Functions

Increased reliability due to monitoring of the internal measurement circuits as well as the hardware and

•

software

Monitoring of the current transformer and voltage transformer secondary circuits using sum and

•

symmetry supervision with optional protection function blocking

Broken-wire Monitoring of Voltage Transformer Circuits

•

Trip circuit monitoring possible

•

Phase rotation check.

•

Flexible Protective Functions

Up to 20 customizable protection functions with three-phase or single-phase operation

•

Any calculated or directly measured quantity can be evaluated on principle

•

Standard protection logic with definite time characteristic

•

Internal and configurable pickup and dropout delay

•

Modifiable message texts.

•

Synchrocheck

Introduction

1.3 Characteristics

Check of the synchronism conditions or de-energized state before manual closing of the circuit breaker

•

Fast measurement of the voltage difference ΔV, the phase angle difference Δϕ and the frequency differ-

•

ence Δf

Setable minimum and maximum voltage

•

Measurement also possible via transformer without external intermediate matching transformer

•

Measuring voltages optionally phase–to–phase or phase–to–ground.

•

Overecxitation Protection

Calculation of the V/f ratio V/f

•

Adjustable warning and tripping stage

•

Standard characteristic or arbitrary trip characteristic selectable for calculation of the thermal stress.

•

Jump of Voltage Vector

Sensitive phase jump detection to be used for network disconnection.

•

Phase Rotation

Selectable ABC or ACB by setting (static) or binary input (dynamic).

•

User Defined Functions

Freely programmable linking of internal and external signals in order to implement user-defined logic

•

functions

All standard logic functions (AND, OR, NOT, EXCLUSIVE-OR, etc.)

•

Time delays and limit value interrogations

•

Processing of measured values, including zero suppression, adding a knee curve for a transducer input,

•

and live-zero monitoring.

Linking of multiple devices for load restoration with prioritization of the stages

•

SIPROTEC 4, 7RW80, Manual 21
C53000-G1140-C233-4, Edition 07.2018

Introduction

1.3 Characteristics

Breaker Control

•

Switching devices can be opened and closed manually using control keys, programmable function keys,
via port B (e.g. of SICAM or LSA), or via the user interface (using a personal computer and the DIGSI oper­ating software)

22 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

2

Functions

This chapter describes the numerous functions available on the SIPROTEC 4 device 7RW80. It shows the
setting possibilities for each function in maximum configuration. Information with regard to the determina­tion of setting values as well as formulas, if required, are also provided.

Based on the following information, it can also be determined which of the provided functions should be
used.

2.1 General 24

2.2 Voltage Protection 27, 59 37

2.3 Frequency Protection 81 O/U 46

2.4 Load Restoration 50

2.5 Supervision Functions 61

2.6 Flexible Protection Functions 71

2.7 Synchrocheck 80

2.8 24 Overexcit. Protection (Volt/Hertz) 91

2.9 Jump of Voltage Vector 96

2.10 Phase Rotation 100

2.11 Function Logic 101

2.12 Auxiliary Functions 103

2.13 Breaker Control 112

2.14 Notes on Device Operation 120

SIPROTEC 4, 7RW80, Manual 23
C53000-G1140-C233-4, Edition 07.2018

i

i

Functions

2.1 General

2.1

2.1.1

2.1.1.1

Setting the Functional Scope

General

The settings associated with the various device functions can be modified using the operating or service inter­face in DIGSI in conjunction with a personal computer. Some parameters can also be changed using the
controls on the front panel of the device. The procedure is described in detail in the SIPROTEC System Descrip­tion /1/ SIPROTEC 4 System Description.

Functional Scope

The 7RW80 relay contains protection functions as well as auxiliary functions. The hardware and firmware is
designed for this scope of functions. Additionally, the control functions can be matched to the system require­ments. Individual functions can be enabled or disabled during the configuration procedure. The interaction of
functions may also be modified.

Functional Description

The available protection and additional functions can be configured as Enabled or Disabled. For individual
functions, a choice between several alternatives may be possible, as described below.

Functions configured as Disabled are not processed by the 7RW80. There are no messages and corre­sponding settings (functions, limit values) queried during configuration.

NOTE

Available functions and default settings are depending on the order variant of the relay (see A Ordering

Information and Accessories).

2.1.1.2

Setting the Functional Scope

Special Features

Setting Notes

Your protection device is configured using the DIGSI software. Connect your personal computer either to the
USB port on the device front or to port A or port B on the bottom side of the device depending on the device
version (ordering code). The operation via DIGSI is explained in the SIPROTEC 4 System Description.

The Device Configuration dialog box allows you to adjust your device to the specific system conditions.
Password no. 7 is required (for parameter set) for changing configuration parameters in the device. Without

the password the settings can only be read but not edited and transmitted to the device.

Most settings are self-explanatory. The special cases are described in the following.
If you want to use the setting group change function, set address 103 Grp Chge OPTION to Enabled. In

this case, you can select up to four different groups of function parameters between which you can switch
quickly and conveniently during operation. Only one setting group can be used when selecting the option
Disabled.

The synchronization function is activated in address 161 25 Function 1 by the setting SYNCHROCHECK or it
is set to Disabled.

Under address 182 74 Trip Ct Supv it can be selected whether the trip-circuit supervision works with two
(2 Binary Inputs) or only one binary input (1 Binary Input), or whether the function is configured
Disabled.

In address 617 ServiProt (CM) you can specify for which purpose port B is used. T103 means that the
device is connected to a control and protection facility via serial port, DIGSI means that you are using the port
to connect DIGSI or you are not using port B (Disabled).

The flexible protection functions can be configured via parameter FLEXIBLE FUNC.. You can create up to 20
flexible functions by setting a checkmark in front of the desired function. If the checkmark of a function is

24 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

Functions

2.1 General

removed, all settings and configurations made previously will be lost. After re-selecting the function, all
settings and configurations are in default setting. Setting of the flexible function is done in DIGSI under
“Parameters”, “Additional Functions” and “Settings”. The configuration is done, as usual, under “Parameters”
and “Configuration”.

2.1.1.3

Settings

Addr. Parameter Setting Options Default Setting Comments

103 Grp Chge OPTION Disabled

Disabled Setting Group Change Option

Enabled

104 OSC. FAULT REC. Disabled

Enabled Oscillographic Fault Records

Enabled

143 24 V/f Disabled

Enabled

146 VECTOR JUMP Disabled

Disabled 24 Overexcit. Protection (Volt/

Hertz)

Disabled Jump of Voltage Vector

Enabled

150 27/59 Disabled

Enabled

152 VT BROKEN WIRE Disabled

Enabled 27, 59 Under/Overvoltage Protec-

tion

Enabled VT broken wire supervision

Enabled

154 81 O/U Disabled

Enabled

155 Load Restore Disabled

Enabled 81 Over/Underfrequency Protec-

tion

Disabled Load Restoration

Enabled

161 25 Function 1 Disabled

Disabled 25 Function group 1

SYNCHROCHECK

182 74 Trip Ct Supv Disabled

Disabled 74TC Trip Circuit Supervision
2 Binary Inputs
1 Binary Input

617 ServiProt (CM) Disabled

T103 Port B usage
T103
DIGSI

SIPROTEC 4, 7RW80, Manual 25
C53000-G1140-C233-4, Edition 07.2018

Functions

2.1 General

Addr. Parameter Setting Options Default Setting Comments

- FLEXIBLE FCT. 1...20 Flexible Function 01

Please select Flexible Functions 1...20
Flexible Function 02
Flexible Function 03
Flexible Function 04
Flexible Function 05
Flexible Function 06
Flexible Function 07
Flexible Function 08
Flexible Function 09
Flexible Function 10
Flexible Function 11
Flexible Function 12
Flexible Function 13
Flexible Function 14
Flexible Function 15
Flexible Function 16
Flexible Function 17
Flexible Function 18
Flexible Function 19
Flexible Function 20

2.1.2

Device, General Settings

The device requires some general information. This may be, for example, the type of annunciation to be
issued in the event of an occurrence of a power system fault.

2.1.2.1

Functional Description

Command-Dependent Messages "No Trip – No Flag"

The storage of indications assigned to local LEDs and the availability of spontaneous indications can be made
dependent on whether the device has issued a trip command. This information is then not issued if during a
system disturbance one or more protection functions have picked up but the 7RW80 did not trip because the
fault was cleared by another device (e.g. on another line). These messages are then limited to faults in the line
to be protected.

The following figure illustrates the generation of the reset command for stored indications. The instant the
device drops out, the presetting of parameter 610 FltDisp.LED/LCD decides whether the new fault
remains stored or is reset.

[dw_ruecksetzbefehl-fuer-n-speicher-led-lcd-meld, 1, en_US]

Figure 2-1 Creation of the reset command for the latched LED and LCD messages

26 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018

Spontaneous Messages on the Display

You can determine whether or not the most important data of a fault event is displayed automatically after
the fault has occurred (see also Subsection "Fault Messages" in Section "Auxiliary Functions").

Functions

2.1 General

2.1.2.2

Setting Notes

Fault Messages

A new pickup of a protection function generally turns off any previously set light displays so that only the
latest fault is displayed at any one time. It can be selected whether the stored LED displays and the sponta­neous messages on the display appear after the new pickup or only after a new trip signal is issued. In order to
select the desired mode of display, select the Device submenu in the SETTINGS menu. Under address 610
FltDisp.LED/LCD the two options Target on PU and Target on TRIP ("No trip – no flag") can be
selected.

For devices with graphic display, use parameter 611 Spont. FltDisp. to specify whether a spontaneous
fault message should appear automatically on the display (YES) or not (NO). For devices with text display such
indications will appear after a system fault in any case.

Selection of Default Display

The start page of the default display appearing after startup of the device can be selected in the device data
via parameter640 Start image DD. The pages available for each device version are listed in the Appendix

D Default Settings and Protocol-dependent Functions.

2.1.2.3

Addr.

Settings

Parameter Setting Options Default Setting Comments

610 FltDisp.LED/LCD Target on PU

Target on TRIP

611 Spont. FltDisp. YES

NO

640 Start image DD image 1

image 2
image 3

Target on PU Fault Display on LED / LCD

NO Spontaneous display of flt.annun-

ciations

image 1 Start image Default Display

2.1.2.4

No.

Information List

Information Type of

Comments
Informa­tion

- >Light on SP >Back Light on

- Reset LED IntSP Reset LED

- DataStop IntSP Stop data transmission

- Test mode IntSP Test mode

- Feeder gnd IntSP Feeder GROUNDED

- Brk OPENED IntSP Breaker OPENED

- HWTestMod IntSP Hardware Test Mode

- SynchClock IntSP_Ev Clock Synchronization

- Distur.CFC OUT Disturbance CFC
1 Not configured SP No Function configured
2 Non Existent SP Function Not Available
3 >Time Synch SP_Ev >Synchronize Internal Real Time Clock
5 >Reset LED SP >Reset LED
15 >Test mode SP >Test mode

SIPROTEC 4, 7RW80, Manual 27
C53000-G1140-C233-4, Edition 07.2018

Functions

2.1 General

No. Information Type of

Informa­tion

16 >DataStop SP >Stop data transmission
51 Device OK OUT Device is Operational and Protecting
52 ProtActive IntSP At Least 1 Protection Funct. is Active
55 Reset Device OUT Reset Device
56 Initial Start OUT Initial Start of Device
67 Resume OUT Resume
68 Clock SyncError OUT Clock Synchronization Error
69 DayLightSavTime OUT Daylight Saving Time
70 Settings Calc. OUT Setting calculation is running
71 Settings Check OUT Settings Check
72 Level-2 change OUT Level-2 change
73 Local change OUT Local setting change
110 Event Lost OUT_Ev Event lost
113 Flag Lost OUT Flag Lost
125 Chatter ON OUT Chatter ON
140 Error Sum Alarm OUT Error with a summary alarm
160 Alarm Sum Event OUT Alarm Summary Event
177 Fail Battery OUT Failure: Battery empty
178 I/O-Board error OUT I/O-Board Error
181 Error A/D-conv. OUT Error: A/D converter
191 Error Offset OUT Error: Offset
193 Alarm NO calibr OUT Alarm: NO calibration data available

236.2127 BLK. Flex.Fct. IntSP BLOCK Flexible Function
301 Pow.Sys.Flt. OUT Power System fault
302 Fault Event OUT Fault Event
303 sens Gnd flt OUT sensitive Ground fault
320 Warn Mem. Data OUT Warn: Limit of Memory Data exceeded
321 Warn Mem. Para. OUT Warn: Limit of Memory Parameter exceeded
322 Warn Mem. Oper. OUT Warn: Limit of Memory Operation exceeded
323 Warn Mem. New OUT Warn: Limit of Memory New exceeded
502 Relay Drop Out SP Relay Drop Out
510 Relay CLOSE SP General CLOSE of relay
545 PU Time VI Time from Pickup to drop out
546 TRIP Time VI Time from Pickup to TRIP
10080 Error Ext I/O OUT Error Extension I/O
10081 Error Ethernet OUT Error Ethernet
10083 Error Basic I/O OUT Error Basic I/O

Comments

2.1.3

2.1.3.1

28 SIPROTEC 4, 7RW80, Manual

Power System Data 1

Functional Description

The device requires certain basic data regarding the protected equipment so that the device can adapt to its
desired application. These may be, for instance, nominal power system and transformer data, measured quan­tity polarities and their physical connections, breaker properties (where applicable) etc. There are also certain
parameters that are common to all functions, i.e. not associated with a specific protection, control or moni­toring function. The following section discusses these parameters.

C53000-G1140-C233-4, Edition 07.2018

Functions

2.1 General

2.1.3.2

Setting Notes

General

Some P.System Data 1 can be entered directly at the device. See Section 2.14 Notes on Device Operation
for more information regarding this topic.

In DIGSI double-click Settings to open the corresponding dialog box. In doing so, a dialog box with tabs will
open under P.System Data 1 where individual parameters can be configured. The following descriptions
are therefore structured according to these tabs.

Rated Frequency (Power System)

The nominal frequency of the system is set under the Address 214 Rated Frequency. The factory pre­setting in accordance with the model need only be changed if the device will be employed for a purpose other
than that which was planned when ordering.

In the US device versions (ordering data position 10= C), parameter 214 is preset to 60 Hz. 214.

Voltage Connection (Power System)

Address 213 specifies how the voltage transformers are connected.
VT Connect. 3ph = Van, Vbn, Vcn means that the three phase voltages are wye connected, i.e. the

three phase-to-ground voltages are measured.ground.
VT Connect. 3ph = Vab, Vbc, VGnd means that two phase-to-phase voltages (open delta voltage) and

the displacement voltage V
VT Connect. 3ph = Vab, Vbc means that two phase-to-phase voltages (open delta voltage) are

connected. The third voltage transformer of the device is not used.
VT Connect. 3ph = Vab, Vbc, Vx means that two phase-to-phase voltages (open delta voltage) are

connected. Furthermore, any third voltage Vx is connected that is used exclusively for the flexible protection
functions. The transformer nominal voltages for Vx are set at address 232 and 233.

VT Connect. 3ph = Vab, Vbc, VSyn means that two phase-to-phase voltages (open delta voltage) and
the reference voltage for V

device is used.
VT Connect. 3ph = Vph-g, VSyn is used if the synchronization function of the device is used and only

phase-to-ground voltages are available for the protected object to be synchronized. One of these voltages is
connected to the first voltage transformer; the reference voltage V

former.
The selection of the voltage transformer connection affects the operation of all device functions that require

voltage input.
The settings Vab, Vbc or Vab, Vbc, Vx or Vab, Vbc, VSyn or Vph-g, VSyn do not allow determining

the zero sequence voltage. The associated protection functions are inactive in this case.
The table gives an overview of the functions that can be activated for the corresponding connection type

(depends also on the ordering number). The functions which are not shown are available for all connection
types.

are connected.

GND

are connected. This setting is enabled if the synchronization function of the

SYN

is connected to the third voltage trans-

SYN

Table 2-1

Connection Types of the Voltage Transformers

Connection type Synchronization

Van, Vbn, Vcn

Vab, Vbc, VGnd

Vab, Vbc

Vab, Vbc, Vx

Vab, Vbc, VSyn

Vph-g, VSyn

no
no
no

no
yes
yes

Measured values, which due to the chosen voltage connection cannot be calculated, will be displayed as dots.

SIPROTEC 4, 7RW80, Manual 29
C53000-G1140-C233-4, Edition 07.2018

Functions

2.1 General

The Appendix provides some connection examples for all connection types atC Connection Examples.

Nominal Values of Voltage Transformers (VTs)

At addresses 202 Vnom PRIMARY and 203 Vnom SECONDARY, information is entered regarding the primary
nominal voltage and secondary nominal voltage (phase-to-phase) of the connected voltage transformers.

Transformation Ratio of Voltage Transformers (VTs)

Address 206 Vph / Vdelta informs the device of the adjustment factor between the phase voltage and the
displacement voltage. This information is relevant for the processing of ground faults (in grounded systems
and ungrounded systems), for the operational measured value VN and measured-variable monitoring.

If the voltage transformer set provides open delta windings and if these windings are connected to the device,
this must be specified accordingly in address 213 (see above margin heading “Voltage Connection”). Since the
voltage transformer ratio is normally as follows:

[uebersetzung-spannungswandler-020313-kn, 1, en_US]

the factor V

(secondary voltage, address 206 Vph / Vdelta) must be set to 3/ √3 = √3 = 1.73 which

ph/VN

must be used if the VN voltage is connected. For other transformation ratios, i.e. the formation of the
displacement voltage via an interconnected transformer set, the factor must be corrected accordingly.

Please take into consideration that also the calculated secondary V0-voltage is divided by the value set in
address 206. Thus, even if the V0-voltage is not connected, address 206 has an impact on the secondary
operational measured value VN.

If Vab, Vbc, VGnd is selected as voltage connection type, parameter Vph / Vdelta is used to calculate
the phase-to-ground voltages and is therefore important for the protection function. With voltage connection
type Van, Vbn, Vcn, this parameter is used only to calculate the operational measured value of the secon­dary voltage VN.

Trip and Close Command Duration (Breaker)

In address 210 the minimum trip command duration TMin TRIP CMD is set. This setting applies to all protec­tion functions that can initiate tripping.

In address 211 the maximum close command duration TMax CLOSE CMD is set. It applies to the integrated
reclosing function. It must be set long enough to ensure that the circuit breaker has securely closed. An exces­sive duration causes no problem since the closing command is interrupted in the event another trip is initiated
by a protection function.

Pickup Thresholds of the Binary Inputs (Thresholds BI)

At address 220 Threshold BI 1 to 226 Threshold BI 7 you can set the pickup thresholds of the binary
inputs of the device. The settings Thresh. BI 176V, Thresh. BI 88V or Thresh. BI 19V are possible.

Voltage Protection (Protection Operating Quantities)

In a three-phase connection, the fundamental harmonic of the three phase-to-phase voltages (Vphph) or
phase-ground voltages (Vph-n) or the positive sequence voltage (V1) or the negative sequence voltage (V2)
is supplied to the overvoltage protection elements.

In three-phase connection, undervoltage protection relies either on the positive sequence voltage (V1) or the
phase-to-phase voltages (Vphph) or the phase-to-ground voltages (Vph-n).

This is configured by setting the parameter value in address 614 OP. QUANTITY 59 and 615 OP. QUAN-
TITY 27.

Via Parameter 5009 59 Phases and 5109 27 Phases you may configure which measured quantity is to be
evaluated (All phases or Largest phase or Smallest phase).

30 SIPROTEC 4, 7RW80, Manual

C53000-G1140-C233-4, Edition 07.2018