ABB RER670 - Page 12

Verifying the auto recloser ...................................................138
Checking the auto reclosing conditions................................139
Completing the test.............................................................. 141
Apparatus control APC.............................................................. 141
Tap changer control and supervision TCMYLTC, TCLYLTC.... 141
Secondary test..................................................................... 143
Check the activation of the voltage control operation...........144
Check the normal voltage regulation function...................... 144
Check the undervoltage block function................................ 145
Check the upper and lower busbar voltage limit.................. 145
Check the overcurrent block function................................... 146
Single transformer................................................................ 146
Parallel voltage regulation.................................................... 147
Completing the test.............................................................. 152
Single command, 16 signals SINGLECMD............................... 152
Interlocking................................................................................ 152
Transformer energizing control XENCPOW.............................. 152
Verifying the signals and settings.........................................152
Completing the test.............................................................. 153
Scheme communication................................................................. 153
Scheme communication logic for distance or overcurrent
protection ZCPSCH .................................................................. 153
Testing permissive underreaching....................................... 154
Testing permissive overreaching..........................................154
Testing blocking scheme......................................................155
Checking of unblocking logic................................................155
Completing the test.............................................................. 155
Current reversal and Weak-end infeed logic for distance
protection 2-phase ZCRWPSCH............................................... 155
Current reversal logic........................................................... 156
Weak end infeed logic.......................................................... 156
Completing the test.............................................................. 157
Scheme communication logic for residual overcurrent
protection ECPSCH ..................................................................157
Testing the directional comparison logic function.................158
Completing the test.............................................................. 159
Current reversal and weak-end infeed logic for residual
overcurrent protection ECRWPSCH .........................................159
Testing the current reversal logic......................................... 160
Testing the weak-end infeed logic........................................160
Completing the test.............................................................. 162
Logic............................................................................................... 162
Tripping logic............................................................................. 162
Test for trip .......................................................................... 162
Table of contents
6 Railway application RER670 2.2 IEC
Commissioning manual