ABB rec670 Commissioning Manual

Scheme communication logic for distance or overcurrent
protection ZCPSCH .................................................................. 167
Testing permissive underreaching....................................... 167
Testing permissive overreaching..........................................168
Testing blocking scheme......................................................168
Testing delta blocking scheme............................................. 168
Checking of unblocking logic................................................169
Completing the test.............................................................. 169
Current reversal and Weak-end infeed logic for distance
protection 3-phase ZCRWPSCH .............................................. 169
Current reversal logic........................................................... 170
Weak end infeed logic.......................................................... 170
Completing the test.............................................................. 171
Local acceleration logic ZCLCPSCH.........................................171
Verifying the settings............................................................ 171
Completing the test.............................................................. 172
Scheme communication logic for residual overcurrent
protection ECPSCH ..................................................................172
Testing the directional comparison logic function.................172
Completing the test.............................................................. 174
Current reversal and weak-end infeed logic for residual
overcurrent protection ECRWPSCH .........................................174
Testing the current reversal logic......................................... 174
Testing the weak-end infeed logic........................................174
Completing the test.............................................................. 176
Logic............................................................................................... 176
Tripping logic, common 3-phase output SMPPTRC .................176
Three-phase operating mode............................................... 176
1ph/3ph operating mode...................................................... 177
1ph/2ph/3ph operating mode............................................... 178
Circuit breaker lockout..........................................................179
Completing the test.............................................................. 179
Monitoring.......................................................................................180
Gas medium supervision SSIMG.............................................. 180
Testing the liquid medium supervision for alarm and lock
out conditions....................................................................... 180
Completing the test.............................................................. 180
Liquid medium supervision SSIML............................................ 180
Testing the liquid medium supervision for alarm and lock
out conditions....................................................................... 181
Completing the test.............................................................. 181
Breaker monitoring SSCBR.......................................................181
Verifying the settings............................................................ 182
Completing the test.............................................................. 183
Table of contents
Bay control REC670 2.1 IEC 7
Commissioning manual

ABB rec670 Specifications

General

Brand	ABB
Model	rec670
Category	Control Unit
Language	English