line differential protection and control red615 application manual

Relion® 615 series

Line Differential Protection and ControlRED615Application Manual

Document ID: 1MRS758127Issued: 2014-09-12

Revision: BProduct version: 4.1.1

© Copyright 2014 ABB. All rights reserved

CopyrightThis document and parts thereof must not be reproduced or copied without writtenpermission from ABB, and the contents thereof must not be imparted to a thirdparty, nor used for any unauthorized purpose.

The software or hardware described in this document is furnished under a licenseand may be used, copied, or disclosed only in accordance with the terms of suchlicense.

TrademarksABB and Relion are registered trademarks of the ABB Group. All other brand orproduct names mentioned in this document may be trademarks or registeredtrademarks of their respective holders.

WarrantyPlease inquire about the terms of warranty from your nearest ABB representative.

ABB

Nanjing SAC Power Grid Automation Co., Ltd.

No. 11 Phoenix Road, Jiangning Development Zone

211100 Nanjing

China

Telephone: +86 25 51183000

Facsimile: +86 25 51183883

Customer hotline: 4008876268

http://www.abb.com/substationautomation

HTTP://WWW.ABB.COM/SUBSTATIONAUTOMATION

DisclaimerThe data, examples and diagrams in this manual are included solely for the conceptor product description and are not to be deemed as a statement of guaranteedproperties. All persons responsible for applying the equipment addressed in thismanual must satisfy themselves that each intended application is suitable andacceptable, including that any applicable safety or other operational requirementsare complied with. In particular, any risks in applications where a system failure and/or product failure would create a risk for harm to property or persons (including butnot limited to personal injuries or death) shall be the sole responsibility of theperson or entity applying the equipment, and those so responsible are herebyrequested to ensure that all measures are taken to exclude or mitigate such risks.

This product has been designed to be connected and communicate data andinformation via a network interface which should be connected to a securenetwork. It is the sole responsibility of the person or entity responsible for networkadministration to ensure a secure connection to the network and to take thenecessary measures (such as, but not limited to, installation of firewalls, applicationof authentication measures, encryption of data, installation of anti virus programs,etc.) to protect the product and the network, its system and interface included,against any kind of security breaches, unauthorized access, interference, intrusion,leakage and/or theft of data or information. ABB is not liable for any such damagesand/or losses.

This document has been carefully checked by ABB but deviations cannot becompletely ruled out. In case any errors are detected, the reader is kindly requestedto notify the manufacturer. Other than under explicit contractual commitments, inno event shall ABB be responsible or liable for any loss or damage resulting fromthe use of this manual or the application of the equipment.

ConformityThis product complies with the directive of the Council of the EuropeanCommunities on the approximation of the laws of the Member States relating toelectromagnetic compatibility (EMC Directive 2004/108/EC) and concerningelectrical equipment for use within specified voltage limits (Low-voltage directive2006/95/EC). This conformity is the result of tests conducted by ABB inaccordance with the product standards EN 50263 and EN 60255-26 for the EMCdirective, and with the product standards EN 60255-1 and EN 60255-27 for the lowvoltage directive. The product is designed in accordance with the internationalstandards of the IEC 60255 series.

Table of contents

Section 1 Introduction.......................................................................5This manual........................................................................................5Intended audience..............................................................................5Product documentation.......................................................................6

Product documentation set............................................................6Document revision history.............................................................6Related documentation..................................................................7

Symbols and conventions...................................................................7Symbols.........................................................................................7Document conventions..................................................................8Functions, codes and symbols......................................................8

Section 2 RED615 overview...........................................................11Overview...........................................................................................11

Product version history................................................................11PCM600 and IED connectivity package version..........................11

Operation functionality......................................................................12Optional functions........................................................................12

Physical hardware............................................................................12Local HMI.........................................................................................14

Display.........................................................................................14LEDs............................................................................................15Keypad........................................................................................15

Web HMI...........................................................................................16Authorization.....................................................................................17

Audit trail......................................................................................18Communication.................................................................................20

Section 3 RED615 standard configurations...................................23Standard configurations....................................................................23

Addition of control functions for primary devices and theuse of binary inputs and outputs..................................................25LED functionality..........................................................................26

Connection diagrams........................................................................27Presentation of standard configurations...........................................28Standard configuration A..................................................................29

Applications.................................................................................29Functions.....................................................................................30

Default I/O connections..........................................................31Default disturbance recorder settings.....................................32

Table of contents

RED615 1Application Manual

Functional diagrams....................................................................32Functional diagrams for protection.........................................33Functional diagrams for disturbance recorder and tripcircuit supervision...................................................................38Functional diagrams for control and interlocking....................39

Standard configuration B..................................................................42Applications.................................................................................42Functions.....................................................................................42


Functional diagrams....................................................................46Functional diagrams for protection.........................................46Functional diagrams for disturbance recorder andsupervision functions..............................................................52Functional diagrams for control and interlocking....................54

Standard configuration C..................................................................59Applications.................................................................................59Functions.....................................................................................59


Functional diagrams....................................................................62Functional diagrams for protection.........................................62Functional diagrams for disturbance recorder andsupervision functions..............................................................68Functional diagrams for control and interlocking....................69

Standard configuration L..................................................................74Applications.................................................................................74Functions.....................................................................................74


Functional diagrams....................................................................77Functional diagrams for protection.........................................77Functional diagrams for disturbance recorder andsupervision functions .............................................................84Functional diagrams for control and interlocking....................85

Section 4 Requirements for measurement transformers................91Current transformers........................................................................91

Current transformer requirements for non-directionalovercurrent protection..................................................................91

Current transformer accuracy class and accuracy limitfactor......................................................................................91Non-directional overcurrent protection...................................92Example for non-directional overcurrent protection................93

Table of contents

2 RED615Application Manual

Section 5 IED physical connections...............................................95Inputs................................................................................................95

Energizing inputs.........................................................................95Phase currents.......................................................................95Residual current.....................................................................95Residual voltage.....................................................................95

Auxiliary supply voltage input......................................................95Binary inputs................................................................................96

Outputs.............................................................................................97Outputs for tripping and controlling..............................................97Outputs for signalling...................................................................98IRF...............................................................................................99

Protection communication options....................................................99

Section 6 Glossary.......................................................................101

Table of contents


Section 1 Introduction

1.1 This manual

The application manual contains application descriptions and setting guidelinessorted per function. The manual can be used to find out when and for what purposea typical protection function can be used. The manual can also be used whencalculating settings.

1.2 Intended audience

This manual addresses the protection and control engineer responsible forplanning, pre-engineering and engineering.

The protection and control engineer must be experienced in electrical powerengineering and have knowledge of related technology, such as protection schemesand principles.

1MRS758127 B Section 1Introduction


1.3 Product documentation

1.3.1 Product documentation set

Pla

nn

ing

&

pu

rch

ase

En

gin

ee

rin

g

Insta

llatio

n

Co

mm

issio

nin

g

Op

era

tio

n

Ma

inte

na

nce

De

co

mm

issio

nin

g,

de

insta

llatio

n &

dis

po

sa

l

Quick start guide

Quick installation guide

Brochure

Product guide

Operation manual

Installation manual

Connection diagram

Engineering manual

Technical manual

Application manual

Communication protocol manual

IEC 61850 Engineering guide

Point list manual

c

c

GUID-12DC16B2-2DC1-48DF-8734-0C8B7116124C V1 EN

Figure 1: The intended use of documents during the product life cycle

Product series- and product-specific manuals can be downloadedfrom the ABB Website http://www.abb.com/relion.

1.3.2 Document revision historyDocument revision/date Product version HistoryA/2014-05-14 4.1 First release

B/2014-09-12 4.1.1 Content updated to correspond to theproduct version

Download the latest documents from the ABB Websitehttp://www.abb.com/substationautomation.

Section 1 1MRS758127 BIntroduction


http://www.abb.com/relion


1.3.3 Related documentationName of the document Document IDModbus Communication Protocol Manual 1MRS756468

IEC 60870-5-103 Communication Protocol Manual 1MRS756710

IEC 61850 Engineering Guide 1MRS756475

Engineering Manual 1MRS757121

Installation Manual 1MRS756375

Operation Manual 1MRS756708

Technical Manual 1YHT530004D05

1.4 Symbols and conventions

1.4.1 Symbols

The electrical warning icon indicates the presence of a hazardwhich could result in electrical shock.

The warning icon indicates the presence of a hazard which couldresult in personal injury.

The caution icon indicates important information or warning relatedto the concept discussed in the text. It might indicate the presenceof a hazard which could result in corruption of software or damageto equipment or property.

The information icon alerts the reader of important facts andconditions.

The tip icon indicates advice on, for example, how to design yourproject or how to use a certain function.

Although warning hazards are related to personal injury, it is necessary tounderstand that under certain operational conditions, operation of damagedequipment may result in degraded process performance leading to personal injuryor death. Therefore, comply fully with all warning and caution notices.



1.4.2 Document conventionsA particular convention may not be used in this manual.

• Abbreviations and acronyms in this manual are spelled out in the glossary. Theglossary also contains definitions of important terms.

• Push-button navigation in the LHMI menu structure is presented by using thepush-button icons.To navigate between the options, use and .

• HMI menu paths are presented in bold.Select Main menu/Settings.

• LHMI messages are shown in Courier font.To save the changes in non-volatile memory, select Yes and press .

• Parameter names are shown in italics.The function can be enabled and disabled with the Operation setting.

• Parameter values are indicated with quotation marks.The corresponding parameter values are "On" and "Off".

• IED input/output messages and monitored data names are shown in Courier font.When the function starts, the START output is set to TRUE.

1.4.3 Functions, codes and symbolsTable 1: RED615 functions, codes and symbols

Function IEC 61850 IEC 60617 IEC-ANSIProtection

Three-phase non-directional overcurrentprotection, low stage, instance 1 PHLPTOC1 3I> (1) 51P-1 (1)

Three-phase non-directional overcurrentprotection, high stage, instance 1 PHHPTOC1 3I>> (1) 51P-2 (1)


Three-phase non-directional overcurrentprotection, instantaneous stage, instance 1 PHIPTOC1 3I>>> (1) 50P/51P (1)

Three-phase non-directional overcurrentprotection that contains three independentphase-segregated timers, low stage, instance 1

PH3LPTOC1 3I> (1) 51P-1 (1)


PH3LPTOC2 3I> (2) 51P-1 (2)

Three-phase non-directional overcurrentprotection that contains three independentphase-segregated timers, high stage, instance 1

PH3HPTOC1 3I>> (1) 51P-2 (1)


PH3HPTOC2 3I>> (2) 51P-2 (2)

Three-phase non-directional overcurrentprotection that contains three independentphase-segregated timers, instantaneous stage,instance 1

PH3IPTOC1 3I>>> (1) 50P/51P (1)

Table continues on next page



Function IEC 61850 IEC 60617 IEC-ANSINon-directional earth-fault protection, lowstage, instance 1 EFLPTOC1 Io> (1) 51N-1 (1)

Non-directional earth-fault protection, lowstage, instance 2 EFLPTOC2 Io> (2) 51N-1 (2)

Non-directional earth-fault protection, highstage, instance 1 EFHPTOC1 Io>> (1) 51N-2 (1)

Non-directional earth-fault protection,instantaneous stage EFIPTOC1 Io>>> 50N/51N

Directional earth-fault protection, low stage,instance 1 DEFLPDEF1 Io> -> (1) 67N-1 (1)


Directional earth-fault protection, high stage DEFHPDEF1 Io>> -> 67N-2

Admittance based earth-fault protection,instance 1 EFPADM1 Yo> -> (1) 21YN (1)



Transient/intermittent earth-fault protection INTRPTEF1 Io> -> IEF 67NIEF

Harmonics based earth-fault protection 1) HAEFPTOC1 Io>HA 51NHA

Non-directional (cross-country) earth faultprotection, using calculated Io EFHPTOC1 Io>> (1) 51N-2 (1)

Negative-sequence overcurrent protection,instance 1 NSPTOC1 I2> (1) 46 (1)


Phase discontinuity protection PDNSPTOC1 I2/I1> 46PD

Residual overvoltage protection, instance 1 ROVPTOV1 Uo> (1) 59G (1)



Three-phase thermal protection for feeders,cables and distribution transformers T1PTTR1 3Ith>F 49F

Binary signal transfer BSTGGIO1 BST BST

Line differential protection and relatedmeasurements, stabilized and instantaneousstages

LNPLDF1 3dI>L 87L

Circuit breaker failure protection CCBRBRF1 3I>/Io>BF 51BF/51NBF

Three-phase inrush detector INRPHAR1 3I2f> 68

Master trip, instance 1 TRPPTRC1 Master Trip (1) 94/86 (1)


Control

Circuit-breaker control CBXCBR1 I <-> O CB I <-> O CB

Disconnector control, instance 1 DCXSWI1 I <-> O DCC (1) I <-> O DCC(1)




Function IEC 61850 IEC 60617 IEC-ANSIDisconnector control, instance 2 DCXSWI2 I <-> O DCC (2) I <-> O DCC

(2)

Earthing switch control ESXSWI1 I <-> O ESC I <-> O ESC

Disconnector position indication, instance 1 DCSXSWI1 I <-> O DC (1) I <-> O DC (1)



Earthing switch indication, instance 1 ESSXSWI1 I <-> O ES (1) I <-> O ES (1)


Autoreclosing DARREC1 O -> I 79

Condition monitoring

Circuit-breaker condition monitoring SSCBR1 CBCM CBCM

Trip circuit supervision, instance 1 TCSSCBR1 TCS (1) TCM (1)


Current circuit supervision CCRDIF1 MCS 3I MCS 3I

Protection communication supervision PCSRTPC1 PCS PCS

Measurement

Disturbance recorder RDRE1 - -

Three-phase current measurement, instance 1 CMMXU1 3I 3I

Sequence current measurement, instance 1 CSMSQI1 I1, I2, I0 I1, I2, I0

Residual current measurement, instance 1 RESCMMXU1 Io In

Residual voltage measurement RESVMMXU1 Uo Vn



Section 2 RED615 overview

2.1 Overview

RED615 is a phase-segregated two-end line differential protection and control IED(intelligent electronic device) designed for utility and industrial power systems,including looped and meshed distribution networks with or without decentralizedpower generation. RED615 is a member of ABB’s Relion® family and its 615protection and control product series. Re-engineered from the ground up, the 615series has been guided by the IEC 61850 standard for communication andinteroperability of substation automation equipment.

The IED provides unit type main protection for overhead lines and cable feeders indistribution networks. The IED also features current-based protection functions forremote back-up for down-stream protection IEDs and local back-up for the linedifferential main protection. Further, standard configurations B and C also includeearth-fault protection.

The IED is adapted for the protection of overhead line and cable feeders in isolatedneutral, resistance earthed, compensated (impedance earthed) and solidly earthednetworks. Once the IED has been given the application-specific settings, it candirectly be put into service.

The 615 series IEDs support a range of communication protocols including IEC61850 with GOOSE messaging, IEC 60870-5-103 and Modbus®.

2.1.1 Product version historyProduct version Product history4.1 Product released

4.1.1 • In-zone transformer application support

2.1.2 PCM600 and IED connectivity package version• Protection and Control IED Manager PCM600 Ver. 2.6 or later• RED615 Connectivity Package Ver. 4.1 or later

• Parameter Setting• Firmware Update• Disturbance Handling• Signal Monitoring• Lifecycle Traceability• Signal Matrix

1MRS758127 B Section 2RED615 overview


• Communication Management• Configuration Wizard• Label Printing• IED User Management• Application Configuration• Graphical Display Editor• Differential Characteristics Tool• Event Viewer

Download connectivity packages from the ABB Websitehttp://www.abb.com/substationautomation or directly with theUpdate Manager in PCM600.

2.2 Operation functionality

2.2.1 Optional functions• Modbus TCP/IP or RTU/ASCII• IEC 60870-5-103• Admittance based earth-fault (configuration B only)• Harmonics based earth-fault (configuration B and C only)

2.3 Physical hardware

The IED consists of two main parts: plug-in unit and case. The content depends onthe ordered functionality.

Section 2 1MRS758127 BRED615 overview



Table 2: Plug-in unit and case

Main Slot ID Content optionsPlug-in

unit- HMI Small (4 lines, 16 characters)

Large (8 lines, 16 characters)

X100 Auxiliary power/BOmodule

48-250V DC/100-240 V AC; or 24-60 V DC2 normally-open PO contacts1 change-over SO contacts1 normally open SO contact2 double-pole PO contacts with TCS1 dedicated internal fault output contact

X110 Optional BIO module 8 binary inputs4 signal output contacts

X120 AI/BI module Only with configuration B:3 phase current inputs (1/5 A)1 residual current input (1/5 A or 0.2/1 A)1)

1 residual voltage input (60-210 V)3 binary inputs

AI/BI module Only with configurations A, C and L:3 phase current inputs (1/5 A)1 residual current input (1/5 A)4 binary inputs

Case X130 Optional BIO module 6 binary inputs3 signal output contacts

X000 Optional communicationmodule

See technical manual for details about differenttype of communication modules.

1) The 0.2/1 A input is normally used in applications requiring sensitive earth-fault protection andfeaturing core-balance current transformers.

Rated values of the current and voltage inputs are basic setting parameters of theIED. The binary input thresholds are selectable within the range 18…176 V DC byadjusting the binary input setting parameters.

See the installation manual for more information about the case andthe plug-in unit.

The connection diagrams of different hardware modules are presented in this manual.

Table 3: Number of physical connections in standard configurations

Conf. Analog channels Binary channels CT VT BI BO

A 4 - 12 (18)1) 10 (13)1)

B 4 1 11 (17)1) 10 (13)1)

C 4 - 12 (18)1) 10 (13)1)

L 4 - 12 (18)1) 10 (13)1)

1) With optional BIO module



2.4 Local HMI

The LHMI is used for setting, monitoring and controlling the IED. The LHMIcomprises the display, buttons, LED indicators and communication port.

REF615

Overcurrent

Dir. earth-fault

Voltage protection

Phase unbalance

Thermal overload

Breaker failure

Disturb. rec. Triggered

CB condition monitoring

Supervision

Arc detected

Autoreclose shot in progr.

A070704 V3 EN

Figure 2: Example of the LHMI

2.4.1 DisplayThe LHMI includes a graphical display that supports two character sizes. Thecharacter size depends on the selected language. The amount of characters androws fitting the view depends on the character size.

Table 4: Small display

Character size1) Rows in the view Characters per rowSmall, mono-spaced (6x12 pixels) 5 20

Large, variable width (13x14 pixels) 4 8 or more

1) Depending on the selected language



Table 5: Large display

Character size1) Rows in the view Characters per rowSmall, mono-spaced (6x12 pixels) 10 20

Large, variable width (13x14 pixels) 8 8 or more

1) Depending on the selected language

The display view is divided into four basic areas.

1 2

3 4A070705 V3 EN

Figure 3: Display layout

1 Header

2 Icon

3 Content

4 Scroll bar (displayed when needed)

2.4.2 LEDsThe LHMI includes three protection indicators above the display: Ready, Start andTrip.

There are also 11 matrix programmable LEDs on front of the LHMI. The LEDscan be configured with PCM600 and the operation mode can be selected with theLHMI, WHMI or PCM600.

2.4.3 KeypadThe LHMI keypad contains push-buttons which are used to navigate in differentviews or menus. With the push-buttons you can give open or close commands toobjects in the primary circuit, for example, a circuit breaker, a contactor or a



disconnector. The push-buttons are also used to acknowledge alarms, resetindications, provide help and switch between local and remote control mode.

A071176 V1 EN

Figure 4: LHMI keypad with object control, navigation and command push-buttons and RJ-45 communication port

2.5 Web HMI

The WHMI allows accessing the IED via a Web browser. The supported Webbrowser versions are Internet Explorer 7.0, 8.0 and 9.0.

WHMI is disabled by default.

WHMI offers several functions.

• Programmable LEDs and event lists• System supervision• Parameter settings• Measurement display• Disturbance records• Phasor diagram• Single-line diagram

The menu tree structure on the WHMI is almost identical to the one on the LHMI.



A070754 V4 EN

Figure 5: Example view of the WHMI

The WHMI can be accessed locally and remotely.

• Locally by connecting the laptop to the IED via the front communication port.• Remotely over LAN/WAN.

2.6 Authorization

The user categories have been predefined for the LHMI and the WHMI, each withdifferent rights and default passwords.

The default passwords can be changed with Administrator user rights.

User authorization is disabled by default for LHMI but WHMIalways uses authorization.



Table 6: Predefined user categories

Username User rightsVIEWER Read only access

OPERATOR • Selecting remote or local state with (only locally)• Changing setting groups• Controlling• Clearing indications

ENGINEER • Changing settings• Clearing event list• Clearing disturbance records• Changing system settings such as IP address, serial baud rate

or disturbance recorder settings• Setting the IED to test mode• Selecting language

ADMINISTRATOR • All listed above• Changing password• Factory default activation

For user authorization for PCM600, see PCM600 documentation.

2.6.1 Audit trailThe IED offers a large set of event-logging functions. Normal process-relatedevents can be viewed by the normal user with Event Viewer in PCM600. Criticalsystem and IED security-related events are logged to a separate nonvolatile audittrail for the administrator.

Audit trail is a chronological record of system activities that allows thereconstruction and examination of the sequence of events and changes in an event.Past user and process events can be examined and analyzed in a consistent methodwith the help of Event List and Event Viewer in PCM600. The IED stores 2048system events to the nonvolatile audit trail. Additionally, 1024 process events arestored in a nonvolatile event list. Both the audit trail and event list work accordingto the FIFO principle.

User audit trail is defined according to the selected set of requirements from IEEE1686. The logging is based on predefined usernames or user categories. The useraudit trail events are supported in IEC 61850-8-1, PCM600, LHMI and WHMI.

Table 7: Audit trail events

Audit trail event DescriptionConfiguration change Configuration files changed

Firmware change

Setting group remote User changed setting group remotely




Audit trail event DescriptionSetting group local User changed setting group locally

Control remote DPC object control remote

Control local DPC object control local

Test on Test mode on

Test off Test mode off

Setting commit Settings have been changed

Time change

View audit log Administrator accessed audit trail

Login

Logout

Firmware reset Reset issued by user or tool

Audit overflow Too many audit events in the time period

PCM600 Event Viewer can be used to view the audit trail events together withnormal events. Since only the administrator has the right to read audit trail,authorization must be properly configured in PCM600. The audit trail cannot bereset but PCM600 Event Viewer can filter data. Some of the audit trail events areinteresting also as normal process events.

To expose the audit trail events also as normal process events,define the level parameter via Configuration/Authorization/Authority logging.

Table 8: Comparison of authority logging levels

Audit trail event Authority logging level

NoneConfiguration change

Settinggroup

Settinggroup,control

Settingsedit

All

Configuration change ● ● ● ● ●

Firmware change ● ● ● ● ●

Setting group remote ● ● ● ●

Setting group local ● ● ● ●

Control remote ● ● ●

Control local ● ● ●

Test on ● ● ●

Test off ● ● ●

Setting commit ● ●

Time change ●

View audit log ●

Login ●




Audit trail event Authority logging levelLogout ●

Firmware reset ●

Audit overflow ●

2.7 Communication

The IED supports a range of communication protocols including IEC 61850, IEC60870-5-103 and Modbus®. Operational information and controls are availablethrough these protocols. However, some communication functionality, forexample, horizontal communication between the IEDs, is only enabled by the IEC61850 communication protocol.

The IEC 61850 communication implementation supports all monitoring andcontrol functions. Additionally, parameter settings, disturbance recordings andfault records can be accessed using the IEC 61850 protocol. Disturbance recordingsare available to any Ethernet-based application in the standard COMTRADE fileformat. The IED can send and receive binary signals from other IEDs (so-calledhorizontal communication) using the IEC61850-8-1 GOOSE profile, where thehighest performance class with a total transmission time of 3 ms is supported.Furthermore, the IED supports sending and receiving of analog values usingGOOSE messaging. The IED meets the GOOSE performance requirements fortripping applications in distribution substations, as defined by the IEC 61850standard. The IED can simultaneously report events to five different clients on thestation bus.

The IED can support five simultaneous clients. If PCM600 reserves one clientconnection, only four client connections are left, for example, for IEC 61850 andModbus.

All communication connectors, except for the front port connector, are placed onintegrated optional communication modules. The IED can be connected to Ethernet-based communication systems via the RJ-45 connector (100Base-TX). Ifconnection to a RS-485 network is required, a 9-pin screw-terminal connector, anoptional 9-pin D-sub connector or an optional ST-type glass-fibre connector can beused.

Remote-end station time reference:

• Line differential

For the correct operation of redundant loop topology, it is essential that the externalswitches in the network support the RSTP protocol and that it is enabled in theswitches. Otherwise, connecting the loop topology can cause problems to thenetwork. The IED itself does not support link-down detection or RSTP. The ringrecovery process is based on the aging of the MAC addresses, and the link-up/link-down events can cause temporary breaks in communication. For a better



performance of the self-healing loop, it is recommended that the external switchfurthest from the IED loop is assigned as the root switch (bridge priority = 0) andthe bridge priority increases towards the IED loop. The end links of the IED loopcan be attached to the same external switch or to two adjacent external switches. Aself-healing Ethernet ring requires a communication module with at least twoEthernet interfaces for all IEDs.

Managed Ethernet switchwith RSTP support

Managed Ethernet switchwith RSTP support

Client BClient A

Network ANetwork B

GUID-283597AF-9F38-4FC7-B87A-73BFDA272D0F V3 EN

Figure 6: Self-healing Ethernet ring solution

The Ethernet ring solution supports the connection of up to 30IEDs. If more than 30 IEDs are to be connected, it is recommendedthat the network is split into several rings with no more than 30IEDs per ring. Each IED has a 50-μs store-and-forward delay, andto fullfill the performance requirements for fast horizontalcommunication, the ring size is limited to 30 IEDs.



Section 3 RED615 standard configurations

3.1 Standard configurations

RED615 is available in three alternative standard configurations. The standardsignal configuration can be altered by means of the graphical signal matrix or thegraphical application functionality of the Protection and Control IED ManagerPCM600. Further, the application configuration functionality of PCM600 supportsthe creation of multi-layer logic functions utilizing various logical elementsincluding timers and flip-flops. By combining protection functions with logicfunction blocks the IED configuration can be adapted to user specific applicationrequirements.

Table 9: Standard configurations

Description Std. conf.Line differential protection A

Line differential protection with directional earth-fault protection B

Line differential protection with non-directional earth-fault protection C

Line differential protection with non-directional overcurrent protection that containsthree independent phase-segregated timers and non-directional earth-fault protection L

Table 10: Supported functions

Function A B C LProtection

Three-phase non-directional overcurrent protection, lowstage, instance 1 ● ● ●

Three-phase non-directional overcurrent protection, highstage, instance 1 ● ● ●

Three-phase non-directional overcurrent protection, highstage, instance 2 ● ● ●

Three-phase non-directional overcurrent protection,instantaneous stage, instance 1 ● ● ●

Three-phase non-directional overcurrent protection thatcontains three independent phase-segregated timers, lowstage, instance 1

●

Three-phase non-directional overcurrent protection thatcontains three independent phase-segregated timers, lowstage, instance 2

●

Three-phase non-directional overcurrent protection thatcontains three independent phase-segregated timers, highstage, instance 1

●


1MRS758127 B Section 3RED615 standard configurations


Function A B C LThree-phase non-directional overcurrent protection thatcontains three independent phase-segregated timers, highstage, instance 2

●

Three-phase non-directional overcurrent protection thatcontains three independent phase-segregated timers,instantaneous stage, instance 1

●

Non-directional earth-fault protection, low stage, instance 1 ● 1) ● 1)

Non-directional earth-fault protection, low stage, instance 2 ● 1) ● 1)

Non-directional earth-fault protection, high stage, instance 1 ● 1) ● 1)

Non-directional earth-fault protection, instantaneous stage ● 1) ● 1)

Directional earth-fault protection, low stage, instance 1 ● 1)2)3)

Directional earth-fault protection, low stage, instance 2 ● 1)2)3)

Directional earth-fault protection, high stage ● 1)2)3)

Admittance based earth-fault protection, instance 1 o 1)2)3)



Transient/intermittent earth-fault protection ● 3)4)

Harmonics based earth-fault protection 2) o 4)5) o 4)5)

Non-directional (cross-country) earth fault protection, usingcalculated Io ● 6)

Negative-sequence overcurrent protection, instance 1 ● ● ● ●

Negative-sequence overcurrent protection, instance 2 ● ● ● ●

Phase discontinuity protection ● ● ●

Residual overvoltage protection, instance 1 ● 3)



Three-phase thermal protection for feeders, cables anddistribution transformers ● ● ●

Binary signal transfer ● ● ● ●

Line differential protection and related measurements,stabilized and instantaneous stages ● ● ● ●

Circuit breaker failure protection ● 7) ● ● ●

Three-phase inrush detector ● ● ● ●

Master trip, instance 1 ● ● ● ●

Master trip, instance 2 ● ● ● ●

Control

Circuit-breaker control ● ● ● ●

Disconnector control, instance 1 ● 5) ● 5) ● 5) ● 5)

Disconnector control, instance 2 ● 5) ● 5) ● 5) ● 5)

Earthing switch control ● 5) ● 5) ● 5) ● 5)

Disconnector position indication, instance 1 ● ● ● ●


Section 3 1MRS758127 BRED615 standard configurations


Function A B C LDisconnector position indication, instance 2 ● 5) ● 5) ● 5) ● 5)

Disconnector position indication, instance 3 ● 5) ● 5) ● 5) ● 5)

Earthing switch indication, instance 1 ● ● ● ●

Earthing switch indication, instance 2 ● 5) ● 5) ● 5) ● 5)

Autoreclosing o o


Circuit-breaker condition monitoring ● ● ●

Trip circuit supervision, instance 1 ● ● ● ●

Trip circuit supervision, instance 2 ● ● ● ●

Current circuit supervision ● ● ● ●

Protection communication supervision ● ● ● ●

Measurement

Disturbance recorder ● ● ● ●

Three-phase current measurement, instance 1 ● ● ● ●

Sequence current measurement, instance 1 ● ● ● ●

Residual current measurement, instance 1 ● ● ●

Residual voltage measurement ●

● = included, o = optional at the time of order

1) Io selectable by parameter and default value is Io measured2) One of the following can be ordered as an option; Admittance based E/F or Harmonics based E/F.

The option is an addition to the existing E/F of the original configuration. The optional E/F has also apredefined configuration in the relay. The optional E/F can be set on or off. NOTICE! The existing E/F of the configuration, (DEFx), is always present in the configuration even if it is an option in theorder code sheet.

3) Uo measured is always used4) Io measured is always used5) Available in IED and SMT but not connected to anything in logic6) Io selectable by parameter and default value is Io calculated7) Io calculated is always used

3.1.1 Addition of control functions for primary devices and theuse of binary inputs and outputsIf extra control functions intended for controllable primary devices are added to theconfiguration, additional binary inputs and/or outputs are needed to complementthe standard configuration.

If the number of inputs and/or outputs in a standard configuration is not sufficient,it is possible either to modify the chosen IED standard configuration in order torelease some binary inputs or binary outputs which have originally been configuredfor other purposes, or to integrate an external input/output module, for exampleRIO600, to the IED.



The external I/O module’s binary inputs and outputs of can be used for the less time-critical binary signals of the application. The integration enables releasing someinitially reserved binary inputs and outputs of the IED’s standard configuration.

The suitability of the IED’s binary outputs which have been selected for primarydevice control should be carefully verified, for example make and carry andbreaking capacity. If the requirements for the primary device control circuit are notmet, using external auxiliary relays should be considered.

3.1.2 LED functionalityThe IED has dynamic programmable LEDs. The presentation of the LEDs in thismanual differs from the actual function blocks in the configurations.

GUID-4576631D-C686-454F-8CF0-DC654779B178 V1 EN

Figure 7: Drawing symbol used in the manual and the default connection ofthe LED function blocks in the configurations



3.2 Connection diagrams

GUID-7A5D7398-4E4E-4B45-A561-01E3AF4C1640 V1 EN

Figure 8: Connection diagram for the A, C and L configurations



GUID-9A18BC7A-D172-4FD4-9C25-BF39C5879E5D V1 EN

Figure 9: Connection diagram for the B configuration

3.3 Presentation of standard configurations

Functional diagramsThe functional diagrams describe the IED's functionality from the protection,measuring, condition monitoring, disturbance recording, control and interlockingperspective. Diagrams show the default functionality with simple symbol logics



forming principle diagrams. The external connections to primary devices are alsoshown, stating the default connections to measuring transformers. The positivemeasuring direction of directional protection functions is towards the outgoing feeder.

The functional diagrams are divided into sections with each section constitutingone functional entity. The external connections are also divided into sections. Onlythe relevant connections for a particular functional entity are presented in eachsection.

Protection function blocks are part of the functional diagram. They are identifiedbased on their IEC 61850 name but the IEC based symbol and the ANSI functionnumber are also included. Some function blocks, such as PHHPTOC, are usedseveral times in the configuration. To separate the blocks from each other, the IEC61850 name, IEC symbol and ANSI function number are appended with a runningnumber, that is an instance number, from one upwards. If the block has no suffixafter the IEC or ANSI symbol, the function block has been used, that is,instantiated, only once. The IED’s internal functionality and the externalconnections are separated with a dashed line presenting the IED’s physical casing.

Signal Matrix and Application ConfigurationWith Signal Matrix and Application Configuration in PCM600, it is possible tomodify the standard configuration according to the actual needs. The IED isdelivered from the factory with default connections described in the functionaldiagrams for binary inputs, binary outputs, function-to-function connections andalarm LEDs. The Signal Matrix is used for GOOSE signal input engineering andfor making cross-references between the physical I/O signals and the functionblocks. The Signal Matrix tool cannot be used for adding or removing functionblocks, for example, GOOSE receive function blocks. The ApplicationConfiguration tool is used for these kind of operations. If a function block isremoved with Application Configuration, the function related data disappears fromthe menus as well as from the 61850 data model, with the exception of some basicfunction blocks, which are mandatory and thus cannot be removed from the IEDconfiguration by removing them from the Application Configuration.

3.4 Standard configuration A

3.4.1 ApplicationsThe standard configuration for line current differential protection is mainlyintended for cable feeder applications in distribution networks.

The IED with a standard configuration is delivered from the factory with defaultsettings and parameters. The end-user flexibility for incoming, outgoing andinternal signal designation within the IED enables this configuration to be furtheradapted to different primary circuit layouts and the related functionality needs bymodifying the internal functionality using PCM600.



3.4.2 Functions

Table 11: Functions included in the standard configuration A

Functionality IEC 61850 IEC 60617 IEC-ANSIProtection









LNPLDF1 3dI>L 87L





Control


Disconnector control, instance 1 DCXSWI1 I <-> O DCC(1)

I <-> O DCC(1)


I <-> O DCC(2)











Measurement



Sequence current measurement CSMSQI1 I1, I2, I0 I1, I2, I0



3.4.2.1 Default I/O connections

Table 12: Default connections for binary inputs

Binary input Description Connector pinsX110-BI1 - X110-1,2

X110-BI2 External start of breaker failure protection X110-3,4

X110-BI3 Setting group change X110-5,6

X110-BI4 Binary signal transfer input X110-7,6

X110-BI5 Disconnector close/truck in X110-8,9

X110-BI6 Disconnector open/truck out X110-10,9

X110-BI7 Earth switch close X110-11,12

X110-BI8 Earth switch open X110-13,12

X120-BI1 Blocking input for general use X120-1,2

X120-BI2 Circuit breaker close X120-3,2

X120-BI3 Circuit breaker open X120-4,2

X120-BI4 Lockout reset X120-5,6

Table 13: Default connections for binary outputs

Binary output Description Connector pinsX100-PO1 Close circuit breaker X100-6, 7

X100-PO2 Breaker failure backup trip to upstream breaker X100-8, 9

X100-SO1 Line differential protection trip alarm X100-10, 11, (12)

X100-SO2 Protection communication failure or differentialprotection not available

X100-13, 14

X100-PO3 Open circuit breaker/trip 1 X100-15-19


X110-SO1 Upstream overcurrent blocking X110-14, 15

X110-SO2 Backup protection operate indication X110-17, 18

X110-SO3 Binary transfer signal X110-20, 21

Table 14: Default connections for LEDs

LED Description1 Line differential protection biased stage operate

2 Line differential protection instantaneous stage operate

3 Line differential protection is not available

4 Protection communication failure

5 Current transformer failure detected

6 Phase or negative sequence component over current

7 Breaker failure operate




LED Description8 Disturbance recorder triggered

9 Trip circuit supervision alarm

10 Binary signal transfer receive

11 Binary signal transfer send

3.4.2.2 Default disturbance recorder settings

Table 15: Default analog channel selection and text settings

Channel Selection and text1 IL1

2 IL2

3 IL3

4 Io

5 -

6 -

7 -

8 -

9 -

10 -

11 -

12 -

Additionally, all the digital inputs that are connected by default are also enabledwith the setting. Default triggering settings are selected depending on theconnected input signal type. Typically all protection START signals are selected totrigger the disturbance recorded by default.

3.4.3 Functional diagrams

The functional diagrams describe the default input, output, alarm LED and function-to-function connections. The default connections can be viewed and changed withPCM600 according to the application requirements, if necessary.

The analog channels, measurements from current transformers and voltagetransformers, have fixed connections towards the different function blocks insidethe IED’s standard configuration. Exceptions from this rule are the 12 analogchannels available for the disturbance recorder function. These channels are freelyselectable and a part of the disturbance recorder’s parameter settings.

The analog channels are assigned to different functions. The common signalmarked with 3I represents the three phase currents. The signal marked with Io



represents the measured residual current, via a sum connection of second CT coresof the phase current transformers.

3.4.3.1 Functional diagrams for protection

The functional diagrams describe the IED’s protection functionality in detail andpicture the factory set default connections.

BLKD2H_LOC

BLKD2H_REM

LNPLDF_BLKD2H

GUID-3D2AA0B6-1572-429F-B14B-F8444F789BC6 V4 EN

Figure 10: Line differential protection

The line current differential function (LNPLDF) is intended to be the mainprotection offering exclusive unit protection for the power distribution lines orcables. The stabilized low stage can be blocked if the current transformer failure isdetected. The operate value of the instantaneous high stage can be multiplied by apredefined settings if the ENA_MULT_HS input is activated. In this configurationit is activated by the open status information of the remote-end circuit breaker andearth switch, and if the disconnector is not in the intermediate state. The intentionof this connection is to lower the setting value of the instantaneous high stage bymultiplying with setting High Op value Mult in case of internal fault.

The operate signal is connected to the Master Trip Logics 1 and 2 and also to thealarm LEDs. LED 1 is used for start or operate of stabilized low stage and LED 2for start or operate of instantaneous high stage indication. The indication of thehigh or low stage operation is also connected to the output SO1 (X100:10-11-12).LED 3 is used to indicate if the line differential is not available. This is due tofailures in protection communication or the LNPLDF is set to test mode.



GUID-B1422431-B763-4D31-9EC2-8D543A2D733B V1 EN

Figure 11: Protection communication supervision

The protection communication supervision function (PCSRTPC) is used in theconfiguration to block the operation of the line differential function. This way themalfunction of the line differential is prevented. Also the activation of binarysignal transfer outputs during protection communication failure is blocked. Theseare done internally without connections in configurations. The protectioncommunication supervision alarm is connected to alarm LED 4, to disturbancerecorder and to signal output SO2 (X100:13-14-15).



GUID-9B1CFB25-FB36-4EDE-A229-2899CC2C5832 V1 EN

Figure 12: Overcurrent protection

Four overcurrent stages are offered for overcurrent and short-circuit protection.The instantaneous stage (PHIPTOC1) can be blocked by energizing the binaryinput 1 (X120:1-2). Two negative sequence overcurrent stages (NSPTOC1 andNSPTOC2) are offered for phase unbalance protection. The inrush detectionblock’s (INRPHAR1) output BLK2H enables multiplying the active settings forinstantaneous stage of overcurrent protection.



All operate signals are connected to the Master Trip Logics 1 and 2 and also to thealarm LEDs. LED 6 is used for collective overcurrent and negative-sequenceovercurrent protection operate indication.

Depending on the selected operation mode, the active setting group can be changedeither with a parameter or via binary input.

GUID-8D834AFD-1C7E-4D76-9783-4196C948F3A1 V1 EN

Figure 13: Blocking of the upstream overcurrent relay

The upstream blocking from the start of the overcurrent protection functions isconnected to the output SO1 (X110:14-15-16). The purpose of this output is tosend a blocking signal to the relevant overcurrent protection stage of the IED at theupstream bay.

GUID-F3E79BC2-EF82-4DCB-A916-9DB613FF21C4 V1 EN

Figure 14: Indication of overcurrent or NPS overcurrent operation

The indication of the backup overcurrent protection operation is connected to theoutput SO2 (X110:20-21-22). It can be used, for example, for external alarmpurposes.



PHLPTOC1-operate

PHHPTOC2-operatePHHPTOC1-operate

PHIPTOC1-operate

NSPTOC2-operateNSPTOC1-operate

OR

LNPLDF-operate

X110_BI2 (Start of CBFP)

X120_BI2 (CB Closed)

+

PO2

8

9

X100

LED7 (CBFP OPERATE)

CIRCUIT BREAKER FAILURE PROTECTION

CBFP trip to

Upstream Breaker

CCBRBRF1

3I>/Io -> BF

51BF/51NBF3I

Io

START

POSCLOSE

CB_FAULT

BLOCK

TRRET

TRBU

CB_FAULT_AL

GUID-B79B68FA-F921-49BA-A469-2F0C19847809 V2 EN

Figure 15: Circuit breaker failure protection

The circuit-breaker failure protection (CCBRBRF1) is initiated via the start inputby a number of different protection stages in the IED. CCBRBRF1 offers differentoperating modes associated with the circuit-breaker position and the measuredphase and residual currents.

CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operateoutput is used for retripping its own circuit breaker through the Master Trip Logic2. The TRBU output is used to give a backup trip to the circuit breaker feedingupstream. For this purpose, the TRBU operate output signal is connected to theoutput PO2 (X100: 8-9). LED 7 is used for backup (TRBU) operate indication.



3.4.3.2 Functional diagrams for disturbance recorder and trip circuitsupervision

GUID-95F4F5DE-CB3F-4C54-B115-981E05865388 V1 EN

Figure 16: Disturbance recorder

All start and operate signals from the protection stages are routed to trigger thedisturbance recorder or alternatively only to be recorded by the disturbancerecorder depending on the parameter settings. Additionally, the five binary inputsare also connected.

GUID-E87263FE-32FF-415C-89F0-AEFC537D076C V1 EN

Figure 17: Trip circuit supervision

Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blockedby the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker opensignal. The TCS alarm indication is connected to LED 9.



By default it is expected that there is no external resistor in thecircuit breaker tripping coil circuit connected parallel with circuitbreaker normally open auxiliary contact.

3.4.3.3 Functional diagrams for control and interlocking

GUID-DA0317C8-79B8-4892-9BBD-C05240236D08 V1 EN

Figure 18: Master Trip

The operate signals from the protections are connected to the two trip outputcontacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding MasterTrips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breakerfrom local or remote CBXCBR1-exe_op is connected directly to the output PO3(X100:15-19).

TRPPTRC1 and 2 provide the lockout/latching function, event generation and thetrip signal duration setting. If the lockout operation mode is selected, one binaryinput can be reassigned to the RST_LKOUT input of the Master Trip to enableexternal reset with a push button.



GUID-5CFF1470-3EED-42B1-879C-D2065D85C69D V1 EN

Figure 19: Circuit breaker control and interlocking

There are two types of disconnector and earthing switch blocks available.DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 andESXSWI1 are controllable type. By default, the status only blocks are connected instandard configuration logic. If controllable operation is preferred, the controllabletype of disconnector and earthing switch blocks can be used instead of the statusonly type. The connection and configuration of the control blocks can be doneusing PCM600.

ENA_CLOSE input enables the closing of the circuit breaker. In the circuit-breakercontrol function CBXCBR is a combination of the statuses of the Master Triplogics, disconnector and earth-switch position indications and remote feederposition indications. Master trip logic, disconnector and earth-switch statuses arelocal feeder ready information to be sent for the remote end. Opening is alwaysenabled.

If the ENA_CLOSE signal is completely removed from CBXCBRwith PCM600, the function assumes that the circuit breaker closecommands are allowed continuously.

If REMOTE_FEEDER_READY information is missing, forexample, in case of protection communication not connected, itdisables the breaker closing in the local IED.



GUID-DBCBB3F1-0DC8-4A0B-BB15-7E8009215EBB V1 EN

Figure 20: Line differential trip and protection communication failure indication

The signal outputs from the IED are connected to give dedicated information on:

• Line differential protection trip alarm SO1 (X100:10-12)• Protection communication failure or line differential protection not available

SO2 (X100:13-15)

TPGAPC1 is used for setting the minimum pulse length for the outputs.

GUID-7F99A134-E9F3-47F2-9A80-0A2CDE11513C V1 EN

Figure 21: Binary signal transfer

The binary signal transfer function (BSTGGIO) is used for changing any binaryinformation which can be used for example in protection schemes, interlocking,and alarms. There are eight separate inputs and corresponding outputs available.

In this configuration one physical input BI4 (X110:6-7) is connected to the binarysignal transfer channel one. Local feeder ready and local circuit breaker openinformation are connected to input 6 and 7. These are interlocking informationfrom control logic. The information of detected current transformer fault isconnected to input 8.

As a consequence of sending interlocking information to remote end also receivingof same information locally is needed. Therefore remote feeder ready, remotecircuit breaker open and remote current transformer failure are connected to binarysignal transfer function outputs. All binary signal transfer outputs are connected tooutput SO3 (X110:20-21-22).



The receive and send information are connected to alarm LEDs 10 and 11.

3.5 Standard configuration B

3.5.1 ApplicationsThe standard configuration for line current differential protection includingdirectional earth-fault protection and autoreclosing is mainly intended for cablefeeder applications in distribution networks. The configuration also includesadditional options to select earth-fault protection based on admittance harmonicprinciple.


3.5.2 Functions

Table 16: Functions included in the standard configuration B








Directional earth-fault protection, high stage DEFHPDEF1 Io>> -> 67N-2




Transient/intermittent earth-fault protection INTRPTEF1 Io> -> IEF 67NIEF

Harmonics based earth-fault protection 1) HAEFPTOC1 Io>HA 51NHA




Function IEC 61850 IEC 60617 IEC-ANSINon-directional (cross-country) earth faultprotection, using calculated Io EFHPTOC1 Io>> (1) 51N-2 (1)










LNPLDF1 3dI>L 87L





Control


Disconnector control, instance 1 DCXSWI1 I <-> O DCC(1) I <-> O DCC (1)








Autoreclosing DARREC1 O -> I 79







Measurement






Function IEC 61850 IEC 60617 IEC-ANSISequence current measurement, instance 1 CSMSQI1 I1, I2, I0 I1, I2, I0


Residual voltage measurement RESVMMXU1 Uo Vn



Binary input Description Connector pinsX110-BI1 Lockout reset X110-1,2


X110-BI3 Circuit breaker low gas pressure alarm X110-5,6

X110-BI4 Circuit breaker spring charged indication X110-7,6

X110-BI5 Circuit breaker truck in (service position) indication X110-8,9

X110-BI6 Circuit breaker truck out (test position) indication X110-10,9

X110-BI7 Earthing switch closed indication X110-11,12

X110-BI8 Earthing switch open indication X110-13,12





Binary output Description Connector pinsX100-PO1 Close circuit breaker X100-6,7

X100-PO2 Breaker failure backup trip to upstream breaker X100-8,9

X100-SO1 Line differential protection trip alarm X100-10,11,(12)


X100-13,14



X110-SO1 Upstream overcurrent blocking X110-14,15

X110-SO2 Backup protection operate indication X110-17,18

X110-SO3 Binary transfer signal X110-20,21

X110-SO4 X110-23,24




LED Description1 Line differential protection biased stage operated

2 Line differential protection instantaneous stage operated



5 Auto reclose in progress

6 Backup protection operated

7 Circuit breaker failure protection backup trip operated

8 Disturbance recorder triggered

9 Current transformer failure or trip circuit or circuit breaker supervision alarm






2 IL2

3 IL3

4 Io

5 Uo

6 -

7 -

8 -

9 -

10 -

11 -

12 -




3.5.3 Functional diagramsThe functional diagrams describe the default input, output, alarm LED and function-to-function connections. The default connections can be viewed and changed withPCM600 according to the application requirements, if necessary.


The analog channels are assigned to different functions. The common signalmarked with 3I represents the three phase currents. The signal marked with Iorepresents the measured residual current, via a sum connection of second CT coresof the phase current transformers. The signal marked with Uo represents themeasured residual voltage from voltage transformers.



BLKD2H_LOC

BLKD2H_REM

LNPLDF_BLKD2H

GUID-3A288210-C0A8-4B04-A14E-1A58ABD7D4D3 V4 EN

Figure 22: Line current differential protection





GUID-271B66CC-B2BE-410C-BDC3-76FEC6E988CA V1 EN

Figure 23: Protection communication supervision function

The protection communication supervision function (PCSRTPC) is used in theconfiguration to block the operation of the line differential function. This way themalfunction of the line differential is prevented. Also the activation of binarysignal transfer outputs during protection communication failure is blocked. Theseare done internally without connections in configurations. The protectioncommunication supervision alarm is connected to alarm LED 4, to disturbancerecorder and to signal output SO2 (X100:13-14).



GUID-9705FFE7-4D75-434B-8CD4-AF40CD3C99B4 V2 EN


Four overcurrent stages are offered for overcurrent and short-circuit protection.The instantaneous stage (PHIPTOC1) can be blocked by energizing the binaryinput 1 (X120:1-2). Two negative sequence overcurrent stages (NSPTOC1 andNSPTOC2) are offered for phase unbalance protection. The phase discontinuityprotection (PDNSPTOC1) provides protection for interruptions in the normal three-phase load supply, for example, in downed conductor situations. The inrush



detection block’s (INRPHAR1) output BLK2H enables multiplying the activesettings for instantaneous stage of overcurrent protection.




GUID-B16A06C9-4455-4C9C-977D-89551BC1FB95 V2 EN

Figure 25: Thermal overload protection

The thermal overload protection (T1PTTR1) provides indication on overloadsituations. Active BLK_CLOSE signal blocks the closing of the circuit breaker.LED 6 is used also for the thermal overload protection alarm indication.



DEFLPDEF1I0> -> (1)

67N-1 (1)I0U0BLOCKENA_MULTRCA_CTL

STARTOPERATE

DEFLPDEF2I0> -> (2)


STARTOPERATE

DEFHPDEF1I0>> ->

67N-1I0U0BLOCKENA_MULTRCA_CTL

STARTOPERATE

OR

INTRPTEF1I0 >

67NIEFI0U0BLOCK

STARTOPERATE

BLK_EF

EFHPTOC1I0>>

51N-2I0BLOCKENA_MULT

STARTOPERATE

Calculated Io

CCRDIF1_FAIL

EFPADM1Y0> -> (1)21YN (1)

I0U0BLOCKRELEASE

STARTOPERATE

EFPADM2Y0> -> (2)21YN (2)

I0U0BLOCKRELEASE

STARTOPERATE

EFPADM3Y0> -> (3)21YN (3)

I0U0BLOCKRELEASE

STARTOPERATE

HAEFPTOC1I0>HA

51NHAI0I_REF_RESBLOCK

STARTOPERATE

DOUBLE (CROSS-COUNTRY)EARTH-FAULT PROTECTION

DIRECTIONAL EARTH-FAULTPROTECTION

INTERMITTENT EARTH-FAULTPROTECTION

ADMITTANCE EARTH-FAULTPROTECTION (Optional)

HARMONIC EARTH-FAULTPROTECTION (Optional)

LED6 (EF_OPERATE)

BACKUP_EF_PROT_IND

DEFLPDEF1I0> -> (1)


STARTOPERATE

DEFLPDEF2I0> -> (2)


STARTOPERATE

DEFHPDEF1I0>> ->

67N-1I0U0BLOCKENA_MULTRCA_CTL

STARTOPERATE

OR

INTRPTEF1I0 >

67NIEFI0U0BLOCK

STARTOPERATE

BLK_EF

EFHPTOC1I0>>

51N-2I0BLOCKENA_MULT

STARTOPERATE

Calculated Io

CCRDIF1_FAIL

EFPADM1Y0> -> (1)21YN (1)

I0U0BLOCKRELEASE

STARTOPERATE

EFPADM2Y0> -> (2)21YN (2)

I0U0BLOCKRELEASE

STARTOPERATE

EFPADM3Y0> -> (3)21YN (3)

I0U0BLOCKRELEASE

STARTOPERATE

HAEFPTOC1I0>HA


STARTOPERATE

DOUBLE (CROSS-COUNTRY)EARTH-FAULT PROTECTION

DIRECTIONAL EARTH-FAULTPROTECTION

INTERMITTENT EARTH-FAULTPROTECTION

ADMITTANCE EARTH-FAULTPROTECTION (Optional)


LED6 (EF_OPERATE)

BACKUP_EF_PROT_IND

GUID-C5905DC1-DCB0-4297-A33F-85BC8239EE8F V1 EN

Figure 26: Earth-fault protection

Three stages are offered for directional earth-fault protection. According to theorder code, the directional earth-fault protection method can be based onconventional directional earth-fault (DEFxPDEF) only, or alternatively togetherwith admittance (EFPADM) or harmonics (HAEFPTOC) based earth-faultprotection. In addition, there is a dedicated protection stage (INTRPTEF) either fortransient-based earth-fault protection or for cable intermittent earth-fault protectionin compensated networks.

A dedicated non-directional earth-fault protection block (EFHPTOC) is intendedfor protection against double earth-fault situations in isolated or compensated



networks. This protection function uses the calculated residual current originatingfrom the phase currents.

All operate signals are connected to the Master Trip as well as to the alarm LED 6.

GUID-4960429E-BC29-4952-96EE-386085A68EBB V2 EN

Figure 27: Residual overvoltage protection

The residual overvoltage protection (ROVPTOV) provides earth-fault protectionby detecting abnormal level of residual voltage. It can be used, for example, as anonselective backup protection for the selective directional earth-faultfunctionality. The operation signal is connected to alarm LED 6.

PHHPTOC2_OPERATEPHIPTOC1_OPERATE

NSPTOC2_OPERATENSPTOC1_OPERATE

LNPLDF_OPERATE

X120_BI2 (CB Closed)

+

PO2

89

X100

LED7

CIRCUIT BREAKER FAILURE PROTECTION

CBFP trip toupstream breaker

CCBRBRF13I>/Io -> BF

51BF/51NBF3IIoSTARTPOSCLOSECB_FAULTBLOCK

TRRETTRBU

CB_FAULT_AL

PHHPTOC1_OPERATE

T1PPTR1_OPERATEPDNSPTOC1_OPERATEDEFLPDEF1_OPERATEDEFLPDEF2_OPERATEDEFHPDEF1_OPERATEEFHPTOC1_OPERATEEFPADM1_OPERATEEFPADM2_OPERATEEFPADM3_OPERATE

CCBRBRF1_TRBUCCBRBRF1_TRRET

PHLPTOC1_OPERATE

OR

GUID-333880E9-7E0F-45E5-A0C6-29212E4C891A V1 EN


The circuit-breaker failure protection (CCBRBRF1) is initiated via the start inputby a number of different protection stages in the IED. CCBRBRF1 offers different



operating modes associated with the circuit-breaker position and the measuredphase and residual currents.


3.5.3.2 Functional diagrams for disturbance recorder and supervisionfunctions

LED7 (DR TRIGGERING)

PHHPTOC2_STARTPHIPTOC1_START

CCBRBRF1_TRRETCCBRBRF1_TRBU

X110 BI 4 (CB spring charged)

X120 BI 3 (CB Open)X120 BI 2 (CB Close)

CCRDIF1_ALARM

PDNSPTOC1_START

RDRE1BI#1BI#2BI#3BI#4BI#5BI#6BI#7BI#8BI#9BI#10BI#11BI#12BI#13BI#14BI#15BI#16BI#17BI#18BI#19BI#20BI#21BI#22BI#23BI#24BI#25BI#26BI#27BI#28BI#29BI#30BI#31BI#32BI#33BI#34BI#35BI#36BI#37BI#38BI#39

TRIGGERED

X120 BI 1 (Blocking)

X110 BI 3 (CB gas pressure alarm)

EFHPTOC1_START

DISTURBANCE RECORDER

LNPLDF_STARTLNPLDF_OPERATE

PHHPTOC1_STARTPHLPTOC1_STARTT1PTTR1_START

NSPTOC2_STARTNSPTOC1_START

LNPLDF_RSTD2HLNPLDF_PROT_NOT_ACTIVE

PDNSPTOC1_OPERATE

T1PTTR1_ALARMINRPHAR1_BLK2H

ROVPTOV1_STARTROVPTOV2_STARTROVPTOV3_STARTINTRPTEF1_START

PCSRTPC1_ALARM

DEFLPDEF1_STARTEFPADM1_START

DEFLPDEF2_STARTEFPADM2_START

DEFHPDEF1_STARTEFPADM3_START

ORPHLPTOC1_OPERATE

PHHPTOC1_OPERATEPHHPTOC2_OPERATE

PHIPTOC1_OPERATE

NSPTOC1_OPERATENSPTOC2_OPERATE

ORDEFLPDEF1_OPERATEDEFLPDEF2_OPERATEDEFHPDEF1_OPERATE

EFPADM1_OPERATEEFPADM2_OPERATEEFPADM3_OPERATE

ORROVPTOV1_OPERATEROVPTOV2_OPERATEROVPTOV3_OPERATE

AR_IN_PROGRESS

OR

OR

EFHPTOC1_OPERATE

ORINTRPTEF1_OPERATE

ORDARREC_CLOSE_CBDARREC_UNSUC_RECL

OR

OR

T1PTTR1_OPERATE

GUID-E9EC4772-8F8F-4C67-B118-15E1D0B71985 V1 EN


All start and operate signals from the protection stages are routed to trigger thedisturbance recorder or alternatively only to be recorded by the disturbance



recorder depending on the parameter settings. Additionally, the five binary inputsare also connected.

GUID-A66A720A-F868-4AC1-8F80-AB88164CF324 V2 EN







PHLPTOC1_OPERATEPHHPTOC1_OPERATEPHHPTOC2_OPERATEPHIPTOC1_OPERATENSPTOC1_OPERATENSPTOC2_OPERATE

PDNSPTOC1_OPERATE

DEFLPDEF1_OPERATE

EFHPTOC1_OPERATE

+

X100

16

171518

OR

MASTER TRIP #1

Open CB /trip coil 1PO3

TRPPTRC1BLOCKOPERATERST_LKOUT

TRIPCL_LKOUT

With lock-out modeselection

TRPPTRC2BLOCKOPERATERST_LKOUT

TRIPCL_LKOUT

With lock-out modeselection

DARREC1_OPEN_CBCBXCBR1_EXE_OP

MASTER TRIP #2

TCS1

OR

19

+

X100

22

2123

PO4

TCS2 24

20

DEFLPDEF2_OPERATEDEFHPDEF1_OPERATEEFPADM1_OPERATEEFPADM2_OPERATEEFPADM3_OPERATEINTRPTEF1_OPERATE

ROVPTOV1_OPERATE

ROVPTOV3_OPERATEROVPTOV2_OPERATE

PHLPTOC1_OPERATEPHHPTOC1_OPERATEPHHPTOC2_OPERATEPHIPTOC1_OPERATENSPTOC1_OPERATENSPTOC2_OPERATE

PDNSPTOC1_OPERATE

DEFLPDEF1_OPERATE

EFHPTOC1_OPERATE

OR

DEFLPDEF2_OPERATEDEFHPDEF1_OPERATEEFPADM1_OPERATEEFPADM2_OPERATEEFPADM3_OPERATEINTRPTEF1_OPERATE

ROVPTOV1_OPERATE

ROVPTOV3_OPERATEROVPTOV2_OPERATE

CCBRBRF1_TRRET

Open CB /trip coil 2

BI1 (Lock-out reset)

T1PTTR1_OPERATELNPLDF1_OPERATE

T1PTTR1_OPERATELNPLDF1_OPERATE

TRPPTRC1_TRIP

TRPPTRC2_TRIP

GUID-38A2D634-F43C-4C54-8E70-A168AC0F2D5B V1 EN


The operate signals from the protections are connected to the two trip outputcontacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding MasterTrips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breakerfrom local or remote CBXCBR_EXE_OP is connected directly to the output PO3(X100:15-19).




GUID-849CC2E7-47AE-452B-9090-7C79CDADBCEB V2 EN



The binary inputs 5 and 6 of the additional card X110 are used for busbardisconnector (DCSXSWI1) or circuit-breaker truck position indication.

Table 21: Device positions indicated by binary inputs 5 and 6

Primary device position Input to be energized Input 5 (X110:8-9) Input 6 (X110:10-9)

Busbar disconnector closed x

Busbar disconnector open x

Circuit breaker truck in service position x

Circuit breaker truck in test position x



The binary inputs 7 and 8 (X110:11-13) are designed for the position indication ofthe line-side earth switch.

The circuit breaker closing is enabled when the ENA_CLOSE input is activated.The input can be activated by the configuration logic, which is a combination ofthe disconnector or breaker truck and earth-switch position statuses and the statusesof the master trip logics and gas pressure alarm and circuit-breaker spring charging.This combination of interlocking conditions is called LOCAL_FEEDER_READYand is transferred also to the remote end via binary signal transfer. The OKPOSoutput from DCSXSWI defines if the disconnector or breaker truck is definitelyeither open (in test position) or close (in service position). This, together with theopen earth-switch and non-active trip signals, activates the close-enable signal tothe circuit breaker control function block. The open operation is always enabled.The auto-recloser close command signals are directly connected to the outputcontact PO1 (X100:6-7).

The ITL_BYPASS input can be used, for example, to always enable the closing ofthe circuit breaker when the circuit breaker truck is in the test position, despite ofthe interlocking conditions being active when the circuit breaker truck is closed inservice position.

If the ENA_CLOSE signal is completely removed from the breakercontrol function block CBXCBR with PCM600, the functionassumes that the breaker close commands are allowed continuously.

If REMOTE_FEEDER_READY information is missing, forexample in case of protection communication not connected, itdisables the circuit breaker closing in the local IED.

The circuit breaker condition monitoring function (SSCBR) supervises the circuitbreaker status based on the binary input information connected and measuredcurrent levels. The function introduces various supervision methods. Thecorresponding supervision alarm signals are routed to LED 9.



GUID-ACD31919-0EC7-469C-9EA5-122B62F57CD7 V1 EN




SO2 (X100:13-15)• Back-up overcurrent or earth-fault protection trip alarm SO2 (X110:17-19)


GUID-4BF5E009-4BDD-4AF0-B33D-1F9F472034E4 V1 EN








EFPADM2_OPERATE


PHIPTOC1_OPERATE

DEFLPDEF1_OPERATE

DEFHPDEF1_OPERATE

OR

EFPADM3_OPERATE

AUTORECLOSING (Optional)

PDNSPTOC1_OPERATENSPTOC1_OPERATENSPTOC2_OPERATECBXCBR_SELECTEDINTRPTEF1_OPERATE

OR

OR

LED5 (AR IN PROGRESS)

X11067

X120_BI3 (CB Open)

BI4 (CB Spring Charged)

DARREC10 -> 1

79INIT_1INIT_2INIT_3INIT_4INIT_5INIT_6DEL_INIT_2DEL_INIT_3DEL_INIT_4BLK_RECL_TBLK_RCLM_TBLK_THERMCB_POSCB_READYINC_SHOTPINHIBIT_RECLRECL_ONSYNC

OPEN_CBCLOSE_CBCMD_WAIT

INPROLOCKED

PROT_CRDUNSUC_RECL

AR_ONREADY

LNPLDF_LS_OPERATE DARREC_OPEN_CBDARREC_CLOSE_CB

DARREC_UNSUC_RECL

AR IN PROGRESS

GUID-A55598E8-06EE-4DD8-98F4-FC3E2585D213 V1 EN

Figure 35: Autoreclose

The autoreclose function (DARREC1) is configured to be initiated by operatesignals from a number of protection stages through the INIT1...6 inputs. It ispossible to create individual autoreclose sequences for each input. DARREC1 canbe blocked with the INHIBIT_RECL input. As a default, the operation of someselected protection functions are connected to this input. A control command to thecircuit breaker, either local or remote, also blocks DARREC1 via the CBXCBR-selected signal.

The circuit breaker availability for the autoreclose sequence is expressed with thebinary input 4 (X110:6-7) by connecting the input signal to the CB_READY input.In case this signal is completely removed from DARREC1 with PCM600, thefunction assumes that the breaker is available all the time.

The autoreclose sequence in progress indication is connected to alarm LED 5.



3.6 Standard configuration C

3.6.1 ApplicationsThe standard configuration for line current differential protection including non-directional earth-fault protection and autoreclosing is mainly intended for cablefeeder applications in distribution networks.


3.6.2 Functions

Table 22: Functions included in the standard configuration C

Functionality IEC 61850 IEC 60617 IEC-ANSIProtection









Harmonics based earth-fault protection HAEFPTOC1 Io>HA 51NHA









Functionality IEC 61850 IEC 60617 IEC-ANSILine differential protection and relatedmeasurements, stabilized and instantaneousstages

LNPLDF1 3dI>L 87L





Control



I <-> O DCC(1)


I <-> O DCC(2)







Auto-reclosing DARREC1 O -> I 79







Measurement



Sequence current measurement CSMSQI1 I1, I2, I0 I1, I2, I0




Binary input Description Connector pinsX110-BI1 External start of breaker failure protection X110-1,2


X110-BI3 Circuit breaker low gas pressure alarm X110-5,6

X110-BI4 Circuit breaker spring charged indication X110-7,6




Binary input Description Connector pinsX110-BI5 Circuit breaker truck in (service position) indication X110-8,9

X110-BI6 Circuit breaker truck out (test position) indication X110-10,9

X110-BI7 Earthing switch closed indication X110-11,12

X110-BI8 Earthing switch open indication X110-13,12




X120-BI4 Lockout reset X120-5,6


Binary output Description Connector pinsX100-PO1 Close circuit breaker X100-6,7

X100-PO2 Breaker failure backup trip to upstream breaker X100-8,9

X100-SO1 Line differential protection trip alarm X100-10,11,(12)


X100-13,14



X110-SO1 Upstream overcurrent blocking X110-14,15

X110-SO2 Backup protection operate indication X110-17,18

X110-SO3 Binary transfer signal X110-20,21

X110-SO4 X110-23,24


LED Description1 Line differential protection biased stage operated

2 Line differential protection instantaneous stage operated



5 Autoreclose in progress


7 Circuit failure protection backup trip operated


9 Current transformer failure or trip circuit or circuit breaker supervision alarm








2 IL2

3 IL3

4 Io

5 -

6 -

7 -

8 -

9 -

10 -

11 -

12 -


3.6.3 Functional diagrams

The functional diagrams describe the default input, output, alarm LED and function-to-function connections. The default connections can be viewed and changed withPCM600 according to the application requirements, if necessary.


The analog channels are assigned to different functions. The common signalmarked with 3I represents the three phase currents. The signal marked with Iorepresents the measured residual current, via a sum connection of second CT coresof the phase current transformers.





BLKD2H_LOC

BLKD2H_REM

LNPLDF_BLKD2H

GUID-AD8EEB29-787A-4DEF-A583-DA50490DABB1 V3 EN




GUID-ECC4DAA7-0224-4B1E-9802-36159A10342A V1 EN




The protection communication supervision function (PCSRTPC) is used in theconfiguration to block the operation of the line differential function. This way themalfunction of the line differential is prevented. Also the activation of binarysignal transfer outputs during protection communication failure is blocked. Theseare done internally without connections in configurations. The protectioncommunication supervision alarm is connected to alarm LED 4, to disturbancerecorder and to signal output SO2 (X100:13-14).

GUID-BD86AC25-8837-4F1B-9AD4-4A8602A3E752 V1 EN




Four overcurrent stages are offered for overcurrent and short-circuit protection.The instantaneous stage (PHIPTOC1) can be blocked by energizing the binaryinput 1 (X120:1-2). Two negative sequence overcurrent stages (NSPTOC1 andNSPTOC2) are offered for phase unbalance protection. The phase discontinuityprotection (PDNSPTOC1) provides protection for interruptions in the normal three-phase load supply, for example, in downed conductor situations. The inrushdetection block’s (INRPHAR1) output BLK2H enables multiplying the activesettings for instantaneous stage of overcurrent protection.




GUID-9286D4F1-5DF4-46FD-84F1-986948402C0D V1 EN


The thermal overload protection (T1PTTR1) provides indication on overloadsituations. Active BLK_CLOSE signal blocks the closing of the circuit breaker.LED 6 is used also for the thermal overload protection alarm indication.



OR

LED6 (EF_OPERATE)

HAEFPTOC1I0>HA


STARTOPERATE


EFLPTOC1I0> (1)

51N-1 (1)I0BLOCKENA_MULT

STARTOPERATE

EFLPTOC2I0> (2)


STARTOPERATE

EFHPTOC1I0>> (1)


STARTOPERATE

EFIPTOC1I0>>>

50N/51NI0BLOCKENA_MULT

STARTOPERATE

NON-DIRECTIONALEARTH-FAULT PROTECTION

BACKUP_EF_PROT_IND

CCRDIF1_FAIL

GUID-4A5C3A7F-385F-43C1-B15A-EE3B5E4B21BA V2 EN


Four stages are offered for non-directional earth-fault protection. The earth-faultprotection uses measured residual currents. When current circuit failure is detectedby CCRDIF1, all earth- fault functions are blocked to inhibit unwanted operation,which can occur due to apparent residual current. Based on the order code, theconfiguration can also include optional harmonic based earth-fault (HAEFPTOC)protection.

The functionality of CCRDIF1 should be disabled in case the earth-faultprotections current signal originates from the phase current transformers viaexternal summation instead of separate balanced-core current transformer.

All operate signals are connected to the Master Trip as well as to the alarm LED 6.



GUID-65E0C573-F286-41A8-93CB-CB24321A0004 V1 EN


The circuit-breaker failure protection (CCBRBRF1) is initiated via the start inputby a number of different protection stages in the IED. CCBRBRF1 offers differentoperating modes associated with the circuit-breaker position and the measuredphase and residual currents.





GUID-B6239379-5059-4A66-A394-66537DD68839 V1 EN


All start and operate signals from the protection stages are routed to trigger thedisturbance recorder or alternatively only to be recorded by the disturbancerecorder depending on the parameter settings. Additionally, the five binary inputsare also connected.



GUID-E6DAF971-D144-4DD5-9149-A05C8C98242E V1 EN





GUID-30FA3940-E507-4AD5-95E0-C06863113FF8 V1 EN


The operate signals from the protections are connected to the two trip outputcontacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding MasterTrips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker



from local or remote CBXCBR_EXE_OP is connected directly to the output PO3(X100:15-19).


GUID-B396ADF7-0671-47D7-8D49-CB7CCA72BB6E V1 EN



The binary inputs 5 and 6 of the additional card X110 are used for busbardisconnector (DCSXSWI1) or circuit-breaker truck position indication.



Table 27: Device positions indicated by binary inputs 5 and 6

Primary device position Input to be energized Input 5 (X110:8-9) Input 6 (X110:10-9)






The circuit breaker closing is enabled when the ENA_CLOSE input is activated.The input can be activated by the configuration logic, which is a combination ofthe disconnector or breaker truck and earth-switch position statuses and the statusesof the master trip logics and gas pressure alarm and circuit-breaker spring charging.This combination of interlocking conditions is called LOCAL_FEEDER_READYand is transferred also to the remote end via binary signal transfer. The OKPOSoutput from DCSXSWI defines if the disconnector or breaker truck is definitelyeither open (in test position) or close (in service position). This, together with theopen earth-switch and non-active trip signals, activates the close-enable signal tothe circuit breaker control function block. The open operation is always enabled.The auto-recloser close command signals are directly connected to the outputcontact PO1 (X100:6-7).

The ITL_BYPASS input can be used, for example, to always enable the closing ofthe circuit breaker when the circuit breaker truck is in the test position, despite ofthe interlocking conditions being active when the circuit breaker truck is closed inservice position.

If the ENA_CLOSE signal is completely removed from the breakercontrol function block CBXCBR with PCM600, the functionassumes that the breaker close commands are allowed continuously.

If REMOTE_FEEDER_READY information is missing, forexample in case of protection communication not connected, itdisables the circuit breaker closing in the local IED.

The circuit breaker condition monitoring function (SSCBR) supervises the circuitbreaker status based on the binary input information connected and measuredcurrent levels. The function introduces various supervision methods. Thecorresponding supervision alarm signals are routed to LED 9.



GUID-C9A27CAB-37D7-4D0C-A665-1A717B870FC3 V1 EN




SO2 (X100:13-15)• Back-up overcurrent or earth-fault protection trip alarm SO2 (X110:17-19)


GUID-8D1221BE-AE89-42E0-A5BF-15CEAB8DADC8 V1 EN









PHIPTOC1_OPERATE

EFLPTOC1_OPERATEEFHPTOC1_OPERATE

OR

AUTORECLOSING (Optional)

PDNSPTOC1_OPERATENSPTOC1_OPERATENSPTOC2_OPERATECBXCBR_SELECTED

LED5 (AR IN PROGRESS)

X110

6

7

X120_BI3 (CB Open)

BI4 (CB Spring Charged)

DARREC1

0 -> 1

79INIT_1

INIT_2

INIT_3

INIT_4

INIT_5

INIT_6

DEL_INIT_2

DEL_INIT_3

DEL_INIT_4

BLK_RECL_T

BLK_RCLM_T

BLK_THERM

CB_POS

CB_READY

INC_SHOTP

INHIBIT_RECL

RECL_ON

SYNC

OPEN_CB

CLOSE_CB

CMD_WAIT

INPRO

LOCKED

PROT_CRD

UNSUC_RECL

AR_ON

READY

LNPLDF_LS_OPERATE

DARREC_OPEN_CB

DARREC_CLOSE_CB

DARREC_UNSUC_RECL

AR IN PROGRESS

GUID-754F4F14-A610-4C10-9DB9-404D3872BDBB V2 EN

Figure 48: Autoreclose

The autoreclose function (DARREC1) is configured to be initiated by operatesignals from a number of protection stages through the INIT1...6 inputs. It ispossible to create individual autoreclose sequences for each input. DARREC1 canbe blocked with the INHIBIT_RECL input. As a default, the operation of someselected protection functions are connected to this input. A control command to thecircuit breaker, either local or remote, also blocks DARREC1 via the CBXCBR-selected signal.

The circuit breaker availability for the autoreclose sequence is expressed with thebinary input 4 (X110:6-7) by connecting the input signal to the CB_READY input.In case this signal is completely removed from DARREC1 with PCM600, thefunction assumes that the breaker is available all the time.

The autoreclose sequence in progress indication is connected to alarm LED 5.



3.7 Standard configuration L

3.7.1 ApplicationsThe standard configuration for line current differential protection including non-directional earth-fault protection is mainly intended for cable feeder applications indistribution networks.

The IED with a standard configuration is delivered from the factory with defaultsettings and parameters. The flexibility for incoming, outgoing and internal signaldesignation within the IED enables this configuration to be further adapted todifferent primary circuit layouts and the related functionality needs by modifyingthe internal functionality using PCM600.

3.7.2 FunctionsTable 28: Functions included in the standard configuration L



PH3LPTOC1 3I> (1) 51P-1 (1)


PH3LPTOC2 3I> (2) 51P-1 (2)


PH3HPTOC1 3I>> (1) 51P-2 (1)


PH3HPTOC2 3I>> (2) 51P-2 (2)

Three-phase non-directional overcurrentprotection that contains three independentphase-segregated timers, instantaneous stage,instance 1

PH3IPTOC1 3I>>> (1) 50P/51P (1)











Function IEC 61850 IEC 60617 IEC-ANSIThree-phase thermal protection for feeders,cables and distribution transformers T1PTTR1 3Ith>F 49F



LNPLDF1 3dI>L 87L





Control
















Measurement



Sequence current measurement, instance 1 CSMSQI1 I1, I2, I0 I1, I2, I0




Binary input Description Connector pinsX110-BI1 External start of breaker failure protection X110-1, 2

X110-BI2 Binary signal transfer input X110-3, 4

X110-BI3 Circuit breaker low gas pressure alarm X110-5, 6




Binary input Description Connector pinsX110-BI4 Circuit breaker spring charged indication X110-7, 6

X110-BI5 Circuit breaker truck in (service indication)indication

X110-8, 9

X110-BI6 Circuit breaker truck out (test position) indication X110-10, 9

X110-BI7 Earthing switch closed indication X110-11, 12

X110-BI8 Earthing switch open indication X110-13, 12

X120-BI1 Blocking input for general use X120-1, 2

X120-BI2 Circuit breaker close X120-3, 2

X120-BI3 Circuit breaker open X120-4, 2

X120-BI4 Lockout reset X120-5, 6


Binary output Description Connector pinsX100-PO1 Close circuit breaker X100-6, 7

X100-PO2 Breaker failure backup trip to upstream breaker X100-8, 9

X100-SO1 Line differential protection trip alarm X100-10, 11, (12)


X100-13, 14



X110-SO1 Upstream overcurrent blocking X110-14, 15

X110-SO2 Backup protection operate indication X110-17, 18

X110-SO3 Binary transfer signal X110-20, 21

X110-SO4 - X110-23,24


LED Description1 Line differential protection biased stage operate

2 Line differential protection instantaneous stage operate



5 Autoreclose in progress


7 Circuit failure protection backup trip operated


9 Current transformer failure or trip circuit breaker supervision alarm







Channel Description1 IL1

2 IL2

3 IL3

4 Io

5 -

6 -

7 -

8 -

9 -

10 -

11 -

12 -

All the digital inputs connected by default are also enabled with the setting. Defaulttriggering settings are selected depending on the connected input signal type. Allprotection START signals are selected to trigger the disturbance recorded by default.

3.7.3 Functional diagramsThe functional diagrams describe the default input, output, alarm LED and function-to-function connections. The default connections can be viewed and changed usingPCM600 according to the application requirements.

The analog channels, measurements from current transformers and voltagetransformers, have fixed connections towards the different function blocks insidethe IED’s standard configuration. However, the 12 analog channels available forthe disturbance recorder function are freely selectable and a part of the disturbancerecorder’s parameter settings.

The analog channels are assigned to different functions. The common signalmarked with 3I represents the three phase currents. The signal marked with Iorepresents the measured residual current, via a sum connection of second CT coresof the phase current transformers.


The functional diagrams describe the IED’s protection functionality and the factoryset default connections.



BLKD2H_LOC

BLKD2H_REM

LNPLDF_BLKD2H

GUID-3311D2CE-1998-4643-98CB-6842E1F60C7B V2 EN


The line current differential function LNPLDF is intended to be the mainprotection offering exclusive unit protection for the power distribution lines orcables. The stabilized low stage can be blocked if the current transformer failure isdetected. The operate value of the instantaneous high stage can be multiplied by apredefined settings if the ENA_MULT_HS input is activated. In this configuration,it is activated by the open status information of the remote-end circuit breaker andearth switch, and if the disconnector is not in the intermediate state. The intentionof this connection is to lower the setting value of the instantaneous high stage bymultiplying with setting High Op value Mult, in case of internal fault.

The operate signal is connected to the Master Trip Logics 1 and 2 and also to thealarm LEDs. LED 1 is used for start or operate of stabilized low stage and LED 2for start or operate of instantaneous high stage indication. The indication of thehigh or low stage operation is also connected to the output SO1 (X100:10-11-12).LED 3 is used to indicate if the line differential is not available. This is due tofailures in protection communication or the function LNPLDF is set to test mode.



GUID-3F9B621F-D820-494F-BB7C-21C045B223E1 V1 EN


The protection communication supervision function PCSRTPC is used in theconfiguration to block the operation and prevent the malfunction of the linedifferential function. The activation of binary signal transfer outputs duringprotection communication failure is blocked. These are done internally withoutconnections in the configurations. The protection communication supervisionalarm is connected to alarm LED 4, disturbance recorder and signal output SO2(X100:13-14).



GUID-86424061-5116-405B-A25E-64E4078F44BA V1 EN


Five overcurrent stages are offered for overcurrent and short-circuit protection. Theinstantaneous stage PH3IPTOC1 can be blocked by energizing the binary input 1(X120:1-2). Two negative sequence overcurrent stages, NSPTOC1 and NSPTOC2,



are offered for phase unbalance protection. The phase discontinuity protectionPDNSPTOC1 provides protection for interruptions in the normal three-phase loadsupply, for example, in downed conductor situations. The inrush detection block’sINRPHAR1 output BLK2H enables multiplying the active settings forinstantaneous stage of overcurrent protection.

All operate signals are connected to the Master Trip Logics 1 and 2 and also to thealarm LEDs. LED 6 is used for collective overcurrent and negative sequenceovercurrent protection operate indication.



GUID-60E4727D-75E5-4C6E-B0EC-6639E8F55A78 V1 EN


The thermal overload protection T1PTTR1 provides indication on overloadsituations. Active BLK_CLOSE signal blocks the closing of the circuit breaker.LED 6 is used also for the thermal overload protection alarm indication.



OR LED6 (EF_OPERATE)

EFLPTOC1I0> (1)


STARTOPERATE

EFLPTOC2I0> (2)


STARTOPERATE

EFHPTOC1I0>> (1)


STARTOPERATE

EFIPTOC1I0>>>

50N/51NI0BLOCKENA_MULT

STARTOPERATE

NON-DIRECTIONALEARTH-FAULT PROTECTION

CCRDIF1_FAIL

GUID-85579E0D-A7D8-4D0E-ADA2-9858E5E1D045 V1 EN


Four stages are offered for non-directional earth-fault protection. The earth-faultprotection uses measured residual currents. When current circuit failure is detectedby CCRDIF1, all earth-fault functions are blocked to inhibit unwanted operation,which can occur due to apparent residual current. The functionality of CCRDIF1should be disabled in case the earth-fault protections current signal originates fromthe phase current transformers via external summation instead of separate balanced-core current transformer. All operate signals are connected to the Master Trip aswell as to the alarm LED 6.



GUID-1D434056-E62F-4237-8D0F-408577FD1D18 V1 EN


The circuit breaker failure protection CCBRBRF1 is initiated via the start input bya number of different protection stages in the IED. CCBRBRF1 offers differentoperating modes associated with the circuit breaker position and the measuredphase and residual currents.

CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operateoutput is used for retripping its own circuit breaker through the Master Trip Logic2. The TRBU output is used to give a backup trip to the circuit breaker feedingupstream. The TRBU operate output signal is connected to the output PO2(X100:8-9). LED 7 is used for backup TRBU operate indication.




GUID-29408084-BF0C-4AE3-B669-5F41594DF847 V1 EN


All START and OPERATE signals from the protection stages are routed to triggerthe disturbance recorder or alternatively only to be recorded by the disturbancerecorder depending on the parameter settings. Additionally, the five binary inputsare also connected.



GUID-FF8801A9-C85B-4E31-9B1F-04ABBFB996DE V1 EN


Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). The functions are blockedby the Master Trip TRPPTRC1 and TRPPTRC2 and the circuit breaker opensignal. The TCS alarm indication is connected to LED 9.

It is expected that there is no external resistor in the circuit breakertripping coil circuit connected parallel with circuit breaker normallyopen auxiliary contact.


GUID-F0DA81D7-EB52-4B96-9E99-AFB064DD246B V1 EN


The operate signals from the protections are connected to the two trip outputcontacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding MasterTrips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker



from local or remote CBXCBR_EXE_OP is connected directly to the output PO3(X100:15-19).

TRPPTRC1 and 2 provide the lockout and latching function, event generation andthe trip signal duration setting. If the lockout operation mode is selected, onebinary input can be reassigned to the RST_LKOUT input of the Master Trip toenable external reset with a push button.

GUID-B3D142F5-D854-44B1-8368-354DDD164A77 V1 EN


Two types of disconnector and earthing switch blocks are available.DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 andESXSWI1 are controllable type. By default, the status only blocks are connected instandard configuration logic. If controllable operation is preferred, the controllabletype of disconnector and earthing switch blocks can be used instead of the statusonly type. The connection and configuration of the control blocks can be doneusing PCM600.

The binary inputs 5 and 6 of the additional card X110 are used for busbardisconnector DCSXSWI1 or circuit-breaker truck position indication.



Table 33: Device positions indicated by inputs 5 and 6

Primary device position Input to be energizedInput 5 (X110:8-9) Input 6 (X110:10-9)






The circuit breaker closing is enabled when the ENA_CLOSE input is activated.The input can be activated by the configuration logic, which is a combination ofthe disconnector or breaker truck and earth-switch position statuses and the statusesof the master trip logics and gas pressure alarm and circuit-breaker spring charging.This combination of interlocking conditions is called LOCAL_FEEDER_READYand is transferred also to the remote end via binary signal transfer. The OKPOSoutput from DCSXSWI defines if the disconnector or breaker truck is definitelyeither open (in test position) or close (in service position). This, together with theopen earth-switch and non-active trip signals, activates the close-enable signal tothe circuit breaker control function block. The open operation is always enabled.The autorecloser close command signals are directly connected to the outputcontact PO1 (X100:6-7).

The ITL_BYPASS input can be used, for example, to always enable the closing ofthe circuit breaker when the circuit breaker truck is in the test position, despite theinterlocking conditions being active when the circuit breaker truck is closed inservice position.

If ENA_CLOSE signal is completely removed from the breakercontrol function block CBXCBR with PCM600, the functionassumes that the breaker close commands are allowed continuously.

If REMOTE_FEEDER_READY information is missing, forexample, in case of protection communication not connected, itdisables the circuit breaker closing in the local IED.

The circuit breaker condition monitoring function SSCBR supervises the circuitbreaker status based on the binary input information connected and measuredcurrent levels. The function introduces various supervision methods. Thecorresponding supervision alarm signals are routed to LED 9.



GUID-2CD3B35B-ECF3-4797-8B4D-F1099FBC20C8 V1 EN


The signal outputs from the IED are connected to give dedicated information.

• Line differential protection trip alarm SO1 (X100:10-12).• Protection communication failure or line differential protection not available

SO2 (X100:13-15).• Backup overcurrent or earth-fault protection trip alarm SO2 (X110:17-19).


CB_OPEN

GUID-13EEA4FF-0CE4-4A51-92CC-AC2CC435A36B V1 EN


The binary signal transfer function BSTGGIO is used for changing any binaryinformation which can be used, for example, in protection schemes, interlocking,and alarms. There are eight separate inputs and corresponding outputs available. Inthis configuration, one physical input BI2 (X110:3-4) is connected to the binarysignal transfer channel one. Local feeder ready and local circuit breaker openinformation is connected to input 6 and 7. This is interlocking information fromcontrol logic. The information of detected current transformer fault is connected toinput 8.



As a consequence of sending interlocking information to remote end, also receivingof same information locally is needed. Therefore, remote feeder ready, remotecircuit breaker open and remote current transformer failure are connected to binarysignal transfer function outputs. All binary signal transfer outputs are connected tooutput SO3 (X110:20-21-22).




Section 4 Requirements for measurementtransformers

4.1 Current transformers

4.1.1 Current transformer requirements for non-directionalovercurrent protectionFor reliable and correct operation of the overcurrent protection, the CT has to bechosen carefully. The distortion of the secondary current of a saturated CT mayendanger the operation, selectivity, and co-ordination of protection. However,when the CT is correctly selected, a fast and reliable short circuit protection can beenabled.

The selection of a CT depends not only on the CT specifications but also on thenetwork fault current magnitude, desired protection objectives, and the actual CTburden. The protection settings of the IED should be defined in accordance withthe CT performance as well as other factors.

4.1.1.1 Current transformer accuracy class and accuracy limit factor

The rated accuracy limit factor (Fn) is the ratio of the rated accuracy limit primarycurrent to the rated primary current. For example, a protective current transformerof type 5P10 has the accuracy class 5P and the accuracy limit factor 10. Forprotective current transformers, the accuracy class is designed by the highestpermissible percentage composite error at the rated accuracy limit primary currentprescribed for the accuracy class concerned, followed by the letter "P" (meaningprotection).

Table 34: Limits of errors according to IEC 60044-1 for protective current transformers

Accuracy class Current error atrated primarycurrent (%)

Phase displacement at rated primarycurrent

Composite error atrated accuracy limitprimary current (%)minutes centiradians

5P ±1 ±60 ±1.8 5

10P ±3 - - 10

The accuracy classes 5P and 10P are both suitable for non-directional overcurrentprotection. The 5P class provides a better accuracy. This should be noted also ifthere are accuracy requirements for the metering functions (current metering,power metering, and so on) of the IED.

1MRS758127 B Section 4Requirements for measurement transformers


The CT accuracy primary limit current describes the highest fault currentmagnitude at which the CT fulfils the specified accuracy. Beyond this level, thesecondary current of the CT is distorted and it might have severe effects on theperformance of the protection IED.

In practise, the actual accuracy limit factor (Fa) differs from the rated accuracylimit factor (Fn) and is proportional to the ratio of the rated CT burden and theactual CT burden.

The actual accuracy limit factor is calculated using the formula:

F FS S

S Sa n

in n

in

≈ ×

+

+

A071141 V1 EN

Fn the accuracy limit factor with the nominal external burden Sn

Sin the internal secondary burden of the CT

S the actual external burden

4.1.1.2 Non-directional overcurrent protection

The current transformer selectionNon-directional overcurrent protection does not set high requirements on theaccuracy class or on the actual accuracy limit factor (Fa) of the CTs. It is, however,recommended to select a CT with Fa of at least 20.

The nominal primary current I1n should be chosen in such a way that the thermaland dynamic strength of the current measuring input of the IED is not exceeded.This is always fulfilled when

I1n > Ikmax / 100,

Ikmax is the highest fault current.

The saturation of the CT protects the measuring circuit and the current input of theIED. For that reason, in practice, even a few times smaller nominal primary currentcan be used than given by the formula.

Recommended start current settingsIf Ikmin is the lowest primary current at which the highest set overcurrent stage is tooperate, the start current should be set using the formula:

Current start value < 0.7 x (Ikmin / I1n)

I1n is the nominal primary current of the CT.

Section 4 1MRS758127 BRequirements for measurement transformers


The factor 0.7 takes into account the protection IED inaccuracy, currenttransformer errors, and imperfections of the short circuit calculations.

The adequate performance of the CT should be checked when the setting of thehigh set stage overcurrent protection is defined. The operate time delay caused bythe CT saturation is typically small enough when the overcurrent setting isnoticeably lower than Fa.

When defining the setting values for the low set stages, the saturation of the CTdoes not need to be taken into account and the start current setting is simplyaccording to the formula.

Delay in operation caused by saturation of current transformersThe saturation of CT may cause a delayed IED operation. To ensure the timeselectivity, the delay must be taken into account when setting the operate times ofsuccessive IEDs.

With definite time mode of operation, the saturation of CT may cause a delay thatis as long as the time the constant of the DC component of the fault current, whenthe current is only slightly higher than the starting current. This depends on theaccuracy limit factor of the CT, on the remanence flux of the core of the CT, andon the operate time setting.

With inverse time mode of operation, the delay should always be considered asbeing as long as the time constant of the DC component.

With inverse time mode of operation and when the high-set stages are not used, theAC component of the fault current should not saturate the CT less than 20 times thestarting current. Otherwise, the inverse operation time can be further prolonged.Therefore, the accuracy limit factor Fa should be chosen using the formula:

Fa > 20*Current start value / I1n

The Current start value is the primary pickup current setting of the IED.

4.1.1.3 Example for non-directional overcurrent protection

The following figure describes a typical medium voltage feeder. The protection isimplemented as three-stage definite time non-directional overcurrent protection.

1MRS758127 B Section 4Requirements for measurement transformers


A071142 V1 EN

Figure 61: Example of three-stage overcurrent protection

The maximum three-phase fault current is 41.7 kA and the minimum three-phaseshort circuit current is 22.8 kA. The actual accuracy limit factor of the CT iscalculated to be 59.

The start current setting for low-set stage (3I>) is selected to be about twice thenominal current of the cable. The operate time is selected so that it is selective withthe next IED (not visible in the figure above). The settings for the high-set stageand instantaneous stage are defined also so that grading is ensured with thedownstream protection. In addition, the start current settings have to be defined sothat the IED operates with the minimum fault current and it does not operate withthe maximum load current. The settings for all three stages are as in the figure above.

For the application point of view, the suitable setting for instantaneous stage (I>>>)in this example is 3 500 A (5.83 x I2n). For the CT characteristics point of view, thecriteria given by the current transformer selection formula is fulfilled and also theIED setting is considerably below the Fa. In this application, the CT rated burdencould have been selected much lower than 10 VA for economical reasons.

Section 4 1MRS758127 BRequirements for measurement transformers


Section 5 IED physical connections

5.1 Inputs

5.1.1 Energizing inputs

5.1.1.1 Phase currents

The IED can also be used in single or two-phase applications byleaving one or two energizing inputs unoccupied. However, at leastterminals X120/7-8 must be connected.

Table 35: Phase current inputs

Terminal DescriptionX120-7, 8 IL1

X120-9, 10 IL2

X120-11, 12 IL3

5.1.1.2 Residual current

Table 36: Residual current input

Terminal DescriptionX120-13, 14 Io

5.1.1.3 Residual voltage

Table 37: Additional residual voltage input included in configuration B

Terminal DescriptionX120-5, 6 Uo

5.1.2 Auxiliary supply voltage inputThe auxiliary voltage of the IED is connected to terminals X100/1-2. At DCsupply, the positive lead is connected to terminal X100-1. The permitted auxiliaryvoltage range (AC/DC or DC) is marked on the top of the LHMI of the IED.

1MRS758127 B Section 5IED physical connections


Table 38: Auxiliary voltage supply

Terminal DescriptionX100-1 + Input

X100-2 - Input

5.1.3 Binary inputsThe binary inputs can be used, for example, to generate a blocking signal, tounlatch output contacts, to trigger the disturbance recorder or for remote control ofIED settings.

Table 39: Binary input terminals X110-1...13

Terminal DescriptionX110-1 BI1, +

X110-2 BI1, -

X110-3 BI2, +

X110-4 BI2, -

X110-5 BI3, +

X110-6 BI3, -

X110-6 BI4, -

X110-7 BI4, +

X110-8 BI5, +

X110-9 BI5, -

X110-9 BI6, -

X110-10 BI6, +

X110-11 BI7, +

X110-12 BI7, -

X110-12 BI8, -

X110-13 BI8, +

Binary inputs of slot X120 are available with configurations A, C and L.



X120-2 BI1, -

X120-3 BI2, +

X120-2 BI2, -

X120-4 BI3, +

X120-2 BI3, -

X120-5 BI4, +

X120-6 BI4, -

Section 5 1MRS758127 BIED physical connections


Binary inputs of slot X120 are available with configuration B.



X120-2 BI1, -

X120-3 BI2, +

X120-2 BI2, -

X120-4 BI3, +

X120-2 BI3, -

Binary inputs of slot X130 are optional for configurations A, B, C and L.



X130-2 BI1, -

X130-2 BI2, -

X130-3 BI2, +

X130-4 BI3, +

X130-5 BI3, -

X130-5 BI4, -

X130-6 BI4, +

X130-7 BI5, +

X130-8 BI5, -

X130-8 BI6, -

X130-9 BI6, +

5.2 Outputs

5.2.1 Outputs for tripping and controllingOutput contacts PO1, PO2, PO3 and PO4 are heavy-duty trip contacts capable ofcontrolling most circuit breakers. On delivery from the factory, the trip signalsfrom all the protection stages are routed to PO3 and PO4.

Table 43: Output contacts

Terminal DescriptionX100-6 PO1, NO

X100-7 PO1, NO

X100-8 PO2, NO




Terminal DescriptionX100-9 PO2, NO

X100-15 PO3, NO (TCS resistor)

X100-16 PO3, NO

X100-17 PO3, NO

X100-18 PO3 (TCS1 input), NO


X100-20 PO4, NO (TCS resistor)

X100-21 PO4, NO

X100-22 PO4, NO



5.2.2 Outputs for signallingOutput contacts SO1 and SO2 in slot X100 or SO1, SO2, SO3 and SO4 in slotX110 or SO1, SO2 and SO3 in slot X130 (optional) can be used for signalling onstart and tripping of the IED. On delivery from the factory, the start and alarmsignals from all the protection stages are routed to signalling outputs.

Table 44: Output contacts X100-10...14

Terminal DescriptionX100-10 SO1, common

X100-11 SO1, NC

X100-12 SO1, NO

X100-13 SO2, NO

X100-14 SO2, NO



X110-15 SO1, NO

X110-16 SO1, NC

X110-17 SO2, common

X110-18 SO2, NO

X110-19 SO2, NC

X110-20 SO3, common

X110-21 SO3, NO

X110-22 SO3, NC

X110-23 SO4, common

X110-24 SO4, NO



Output contacts of slot X130 are available in the optional BIO module (BIOB02A).



X130-11 SO1, NO

X130-12 SO1, NC

X130-13 SO2, common

X130-14 SO2, NO

X130-15 SO2, NC

X130-16 SO3, common

X130-17 SO3, NO

X130-18 SO3, NC

5.2.3 IRFThe IRF contact functions as an output contact for the self-supervision system ofthe protection IED. Under normal operating conditions, the IED is energized andthe contact is closed (X100/3-5). When a fault is detected by the self-supervisionsystem or the auxiliary voltage is disconnected, the output contact drops off and thecontact closes (X100/3-4).

Table 47: IRF contact

Terminal DescriptionX100-3 IRF, common

X100-4 Closed; IRF, or Uaux disconnected

X100-5 Closed; no IRF, and Uaux connected

5.3 Protection communication options

Two different protection communication options are available for the IED, that is, afibre optic link and a galvanic pilot wire link.

Multi-mode or single-mode glass fibre can be used in a fibre optic link. Select therequired glass fibre mode when ordering the IED. Link lengths up to 2 km with multi-mode fibre and link lengths up to 20 km with single-mode fibre can be achieved.The fibre optic cable used for protection communication is connected to the X16/LD connector in the IED. See 615 series technical manual for more information.

If a galvanic pilot wire is used as a protection communication link, the pilot wiremodem RPW600 is required. Select the pilot wire option when ordering the IED.The protection communication link always requires two modems in a protection



scheme, thus delivered in pairs of master (RPW600M) and follower (RPW600F)units. The IED is connected to the pilot wire modem using a single-mode fibreoptic cable. Thus a single-mode version of IED is required if the pilot wire link isused. The fibre optic cable is connected to the X16/LD connector in the IED and inEthernet FX connector in the pilot wire modem.

Setting or configuration is not needed with either of the pilot wire modem variantsor with the IED. Pilot wire link lengths up to 8 km with 0.8 mm2 twisted paircables can be applied. Even higher distances can be achieved with good qualitytwisted pair cables in the pilot wire link. The achieved link length also depends onthe noise levels in the installations.

The pilot wire modem has QoS (quality of service) LEDs in the front panel foreasy diagnostics of the pilot wire link quality. The diagnostics feature does notdepend on the payload over the pilot wire link and can be used for checking thequality of the intended pilot wire link even without installing the IEDs. In addition,a diagnostic kit is available as an ordering option for more advanced diagnostic andlogging of diagnostic parameters of the pilot wire link. The kit consists of a CD-ROM with the RPW600 Diagnostic Tool software with a built-in help, requireddrivers and a special serial diagnostic cable to be connected to the console port ofthe modem.

RED615

MM or SM fiber optic

RED615

Fibre optic link

RED615

SM fibre optic

Galvanic pilot wire twisted-pair

RPW600Mpilot wire modem master

RED615

≥ 3 m

SM fibre optic

≥ 3 m

Galvanic pilot wire link

RPW600Fpilot wire modem

follower

GUID-D4D15565-FD47-425D-8ABE-EA1A3C455673 V1 EN

Figure 62: Protection communication options

See RPW600 user guide for more information.



Section 6 Glossary

ANSI American National Standards InstituteASCII American Standard Code for Information InterchangeBI Binary inputCT Current transformerDPC Double-point controlEMC Electromagnetic compatibilityEthernet A standard for connecting a family of frame-based

computer networking technologies into a LANFIFO First in, first outGOOSE Generic Object-Oriented Substation EventHMI Human-machine interfaceI/O Input/outputIEC International Electrotechnical CommissionIEC 60870-5-103 1. Communication standard for protective equipment

2. A serial master/slave protocol for point-to-pointcommunication

IEC 61850 International standard for substation communicationand modeling

IEC 61850-8-1 A communication protocol based on the IEC 61850standard series

IED Intelligent electronic deviceIP address A set of four numbers between 0 and 255, separated

by periods. Each server connected to the Internet isassigned a unique IP address that specifies thelocation for the TCP/IP protocol.

LAN Local area networkLCD Liquid crystal displayLED Light-emitting diodeLHMI Local human-machine interfaceModbus A serial communication protocol developed by the

Modicon company in 1979. Originally used forcommunication in PLCs and RTU devices.

1MRS758127 B Section 6Glossary


Modbus TCP/IP Modbus RTU protocol which uses TCP/IP andEthernet to carry data between devices

NPS Negative phase sequencePCM600 Protection and Control IED ManagerPO Power outputRIO600 Remote I/O unitRJ-45 Galvanic connector typeRS-485 Serial link according to EIA standard RS485RSTP Rapid spanning tree protocolRTU Remote terminal unitSingle-linediagram

Simplified notation for representing a three-phasepower system. Instead of representing each of threephases with a separate line or terminal, only oneconductor is represented.

SO Signal outputTCS Trip-circuit supervisionWAN Wide area networkWHMI Web human-machine interface

Section 6 1MRS758127 BGlossary


Contact us

ABBNanjing SAC Power Grid AutomationCo., Ltd.No. 11 Phoenix Road, JiangningDevelopment Zone211100 Nanjing, ChinaPhone +86 25 51183000Fax +86 25 51183883

www.abb.com/substationautomation

1MR

S75

8127

B©

Cop

yrig

ht 2

014

AB

B. A

ll rig

hts

rese

rved

.

line differential protection and control red615 application manual

Documents