ABB RED670 - Page 14

Checking the operation of the du/dt and di/dt based
function ................................................................................218
Completing the test
.............................................................. 219
Fuse failure supervision VDSPVC.............................................219
Completing the test.............................................................. 220
Control............................................................................................ 220
Synchrocheck, energizing check, and synchronizing
SESRSYN................................................................................. 220
Testing the synchronizing function....................................... 223
Testing the synchrocheck functionality.................................223
Testing the energizing check................................................226
Testing the voltage selection................................................227
Completing the test.............................................................. 229
Autorecloser for 1/2/3-phase operation SMBRREC ................. 230
Preparation of the verification ..............................................232
Switching the auto recloser to On and Off On and Off ......... 232
Verifying the auto recloser ...................................................232
Checking the auto reclosing conditions................................233
Completing the test.............................................................. 235
Apparatus control APC.............................................................. 235
Single command, 16 signals SINGLECMD............................... 236
Interlocking................................................................................ 236
Scheme communication................................................................. 236
Scheme communication logic for distance or overcurrent
protection ZCPSCH .................................................................. 236
Testing permissive underreaching....................................... 237
Testing permissive overreaching..........................................237
Testing blocking scheme......................................................237
Testing delta blocking scheme............................................. 238
Checking of unblocking logic................................................238
Completing the test.............................................................. 239
Phase segregated scheme communication logic for
distance or overcurrent protection ZC1PPSCH ........................239
Testing permissive underreaching....................................... 239
Testing permissive overreaching..........................................240
Testing blocking scheme......................................................240
Completing the test.............................................................. 240
Current reversal and Weak-end infeed logic for distance
protection 3-phase ZCRWPSCH .............................................. 241
Current reversal logic........................................................... 241
Weak end infeed logic.......................................................... 242
Completing the test.............................................................. 242
Local acceleration logic ZCLCPSCH.........................................243
Verifying the settings............................................................ 243
Table of contents
8 Line differential protection RED670 2.2 IEC
Commissioning manual