Completing the test.............................................................. 147
Apparatus control APC.............................................................. 147
Single command, 16 signals SINGLECMD............................... 147
Scheme communication................................................................. 147
Scheme communication logic for distance or overcurrent
protection ZCPSCH .................................................................. 147
Testing permissive underreaching....................................... 148
Testing permissive overreaching..........................................148
Testing blocking scheme......................................................149
Testing delta blocking scheme............................................. 149
Checking of unblocking logic................................................150
Completing the test.............................................................. 150
Current reversal and Weak-end infeed logic for distance
protection 3-phase ZCRWPSCH .............................................. 150
Current reversal logic........................................................... 150
Weak end infeed logic.......................................................... 151
Completing the test.............................................................. 152
Local acceleration logic ZCLCPSCH.........................................152
Verifying the settings............................................................ 152
Completing the test.............................................................. 153
Scheme communication logic for residual overcurrent
protection ECPSCH ..................................................................153
Testing the directional comparison logic function.................153
Completing the test.............................................................. 154
Current reversal and weak-end infeed logic for residual
overcurrent protection ECRWPSCH .........................................155
Testing the current reversal logic......................................... 155
Testing the weak-end infeed logic........................................155
Completing the test.............................................................. 157
Logic............................................................................................... 157
Tripping logic, common 3-phase output SMPPTRC .................157
3 phase operating mode.......................................................157
1ph/3ph operating mode...................................................... 158
1ph/2ph/3ph operating mode............................................... 159
Circuit breaker lockout..........................................................160
Completing the test.............................................................. 160
Monitoring.......................................................................................161
Gas medium supervision SSIMG.............................................. 161
Testing the gas medium supervision for pressure alarm
and pressure lockout conditions...........................................161
Testing the gas medium supervision for temperature
alarm and temperature lock out conditions.......................... 162
Completing the test.............................................................. 162
Liquid medium supervision SSIML............................................ 162
Table of contents
6 Line distance protection REL650 2.2 IEC
Commissioning manual