ABB Relion 670 Series REL670 - Page 14

Verifying the autorecloser function SMBRREC ................... 206
Checking the reclosing conditions .......................................207
Completing the test.............................................................. 209
Apparatus control APC.............................................................. 209
Single command, 16 signals SINGLECMD............................... 209
Interlocking................................................................................ 210
Scheme communication................................................................. 210
Scheme communication logic for distance or overcurrent
protection ZCPSCH .................................................................. 210
Testing permissive underreaching....................................... 210
Testing permissive overreaching..........................................211
Testing blocking scheme......................................................211
Testing delta blocking scheme............................................. 212
Checking of unblocking logic................................................212
Completing the test.............................................................. 212
Phase segregated scheme communication logic for distance
or overcurrent protection ZC1PPSCH ...................................... 213
Testing permissive underreaching....................................... 213
Testing permissive overreaching..........................................213
Testing blocking scheme......................................................214
Completing the test.............................................................. 214
Current reversal and Weak-end infeed logic for distance
protection 3-phase ZCRWPSCH .............................................. 214
Current reversal logic........................................................... 215
Weak end infeed logic.......................................................... 215
Completing the test.............................................................. 216
Local acceleration logic ZCLCPSCH.........................................216
Verifying the settings............................................................ 216
Completing the test.............................................................. 217
Scheme communication logic for residual overcurrent
protection ECPSCH ..................................................................217
Testing the directional comparison logic function.................217
Completing the test.............................................................. 219
Current reversal and weak-end infeed logic for residual
overcurrent protection ECRWPSCH .........................................219
Testing the current reversal logic......................................... 219
Testing the weak-end infeed logic........................................219
Completing the test.............................................................. 221
Direct transfer trip logic..............................................................221
Low active power and power factor local criteria
LAPPGAPC.......................................................................... 221
Compensated over- and undervoltage protection
COUVGAPC.........................................................................222
Sudden change in current variation SCCVPTOC.................223
Table of contents
8 Line distance protection REL670 2.1 IEC
Commissioning manual