ABB RED670 - Page 15

Completing the test.............................................................. 243
Scheme communication logic for residual overcurrent
protection ECPSCH ..................................................................243
Testing the directional comparison logic function
.................243
Completing the test.............................................................. 245
Current reversal and weak-end infeed logic for residual
overcurrent protection ECRWPSCH .........................................245
Testing the current reversal logic......................................... 245
Testing the weak-end infeed logic........................................246
Completing the test.............................................................. 247
Direct transfer trip logic..............................................................248
Low active power and power factor local criteria
LAPPGAPC.......................................................................... 248
Compensated over- and undervoltage protection
COUVGAPC.........................................................................248
Sudden change in current variation SCCVPTOC.................250
Carrier receive logic LCCRPTRC ........................................250
Negative sequence overvoltage protection LCNSPTOV......252
Zero sequence overvoltage protection LCZSPTOV............. 253
Negative sequence overcurrent protection LCNSPTOC...... 253
Zero sequence overcurrent protection LCZSPTOC............. 254
Three phase overcurrent LCP3PTOC.................................. 255
Three phase undercurrent LCP3PTUC................................ 255
Logic............................................................................................... 256
Tripping logic, common 3-phase output SMPPTRC .................256
3 phase operating mode.......................................................256
1ph/3ph operating mode...................................................... 257
1ph/2ph/3ph operating mode............................................... 258
Circuit breaker lockout..........................................................259
Completing the test.............................................................. 259
Monitoring.......................................................................................259
Gas medium supervision SSIMG.............................................. 259
Testing the gas medium supervision for pressure alarm
and pressure lockout conditions...........................................260
Testing the gas medium supervision for temperature
alarm and temperature lock out conditions.......................... 260
Completing the test.............................................................. 261
Liquid medium supervision SSIML............................................ 261
Testing the liquid medium supervision for level alarm
and level lockout conditions................................................. 261
Testing the liquid medium supervision for temperature
alarm and temperature lock out conditions.......................... 262
Completing the test.............................................................. 262
Breaker monitoring SSCBR.......................................................262
Table of contents
Line differential protection RED670 2.2 IEC 9
Commissioning manual