RELION® REB500Distributed busbar protection REB500Version 8.3 ANSIOperation manual

ABB RELION REB500 Operation Manual

Application

Main features

Mode of installation

System design

Functionality

Additional features

REB500 Process bus configuration

Hardware description

Connection diagrams

Technical Data

Ordering for customized IED

Manuals

Relion REB500

Section 1 Introduction

Symbols and conventions

Section 2 Signals

Binary inputs on bay units

Binary outputs on bay units

Binary inputs on central unit

Binary outputs on central unit

System blocking design

Section 3 System Settings

Isolators

Voltage transformers

System response

Isolator alarm delay

Time synchronization

Synchronization by SNTP

Section 4 Busbar protection

Tripping logic

Breaker failure protection

Configuration

BFP neutral measurement system (BFP L0)

Configuration/ Current setting of BFP L0 system

Overcurrent definite time protection

Configuration of overcurrent protection

End fault protection

Breaker pole discrepancy protection

Voltage release

Combined over- and undervoltage release

VT assignment

Release logic / matrix

Release by "31805_External release BB zone

Section 2 Overview

Functional diagram of bay protection REB500

Label number guide for Figure 1

Signals

Bay protection à function-specific signals

Section 3 Configuring bay protection using HMI500

Configuring the bay protection using HMI500

Binary signal configuration

Configuring binary output signals

Recording a binary signal as an event

Section 4 System functions

BP Licenses

Section 5 Bay protection functions

Technical additions

Section 6 BP-Additions to base documentation

Operation and maintenance

Commissioning

Communication

Section 2 Interbay bus functions

Configuring IEC 60870-5-103 IBB

Transfer of differential current values

Configuring the SCS differential current parameter

Section 3 IEC 60870-5-103

Disturbance recorder

ACC actual channel

Status information

Entries for single-point indications

Entries for double-point indications

Display of busbar differential currents

Special information and instructions for configuring the control system

Document conventions

Section 2 Safety information

Section 3 Signals

General inputs to BP

Bay protection — function-specific signals

Signal designations of BP internal signals

Binary output signals of BP

Section 4 System settings

Scaling factor setting for bay protection

Binary inputs

Measurements

Parameters

Measurement

Definitive zone (Def)

Backup overcurrent unit (O/C Backup Protection)

Power-swing blocking

Technical description

Distance measurement

VT supervision

Backup overcurrent function (O/C Backup)

Definite time over- and undercurrent protection 51 (OCDT)

Function settings

Inverse time overcurrent protection 51 (OC)

Inputs and outputs

Directional overcurrent definite time protection 67 (DIROCDT)

Directional overcurrent inverse time protection 67 (DIROCINV)

Definite time over- and undervoltage protection 59/27 (OVDT)

Binary outputs

Synchrocheck 25 (SYNC)

Parameters to be set

Supplementary information for binary inputs

Autoreclosure 79 (AR)

Connections between autoreclosure and distance functions

Connections between autoreclosure and overcurrent functions

Coordinating autoreclosure (AR) with first and second main protections

Timers

Supplementary information for binary outputs

Timing diagrams

Checking the dead times

Directional sensitive EF protection for grounded system 67N (DIREFGND)

Choice of operating mode

Setting the enabling pick-up levels

Setting the characteristic angle

Setting the transient blocking time (t TransBlk)

Logic/Trip Logic (LOGIC)

Features

Operation of the function with integration

Peak value over and undercurrent protection 50 (OCINST)

Requirements

Section 3 Overview

Section 4 Software

Station automation system (SAS)

Section 5 Signal acquisition and processing

Section 6 Self-supervision

Software supervision

Supervision of the protection functions

Microprocessor program and main memories

Internal analogue measurement supervision

Secondary injection tests

Section 7 System Settings

Isolator and circuit-breaker positions

Supervising isolator and circuit-breaker statuses

Isolator alarm

Acknowledging the isolator alarm

Note on isolators and circuit-breakers

Emergency bay unit operation

Section 8 Busbar protection

Application example

Safety aspects of the measuring principle

Restrained amplitude comparison

Operating characteristic

Restrained amplitude comparison with CT saturation

Phase comparison

Case studies: busbar layouts

Influence of the phase comparison function

Case b: Loop current

Section 9 Special applications of BBP

Blocking measurement of certain CTs

In the event of a protection function (BBP, BFP or EFP) tripping this CB

Short-circuiting of a CT

Feeder circuit-breakers

Breaker reclaim time

Example of when the reclaim time is set too short

Example of a CLOSE CB signal which was not registered

Protection zones

Check zone

Application of check zone protection

Maintenance conditions in connection with CzBBP

Section 10 Breaker failure protection (BFP)

Linearized current transformers (TPZ)

Case 2: Backup trip by BFP

setting

10.2.6 Maximum time t

BFP L0 system

caused by CT saturation

caused by an open CT circuit

CT inaccuracies

BFP start input supervision

Section 11 Additional protection features

Result

Solution

Example 3: BBP tripping enabled by the internal undervoltage function

Example 5: BBP neutral measuring system enabled by the internal undervoltage functio