x 7SS52 V4 Manual
C53000-G1176-C182-1
5.4 End Fault Protection ........................................................................................................... 132
5.4.1 End Fault Protection in the Feeder ..................................................................................... 132
5.4.2 Protection in the ”Dead Zone” of the Bus Coupler.............................................................. 134
5.4.2.1 Circuit Breaker Closed........................................................................................................ 134
5.4.2.2 Circuit Breaker Open .......................................................................................................... 135
5.4.2.3 CLOSE Command of the Bus Coupler Circuit Breaker ...................................................... 136
5.4.3 Setting Notes ...................................................................................................................... 137
5.4.4 Settings for the Central Unit................................................................................................ 137
5.4.5 List of Information from the Central Unit............................................................................. 138
5.4.6 List of Information from the Bay Unit .................................................................................. 138
5.5 Supervisory Functions .......................................................................................................139
5.5.1 Functional Description ........................................................................................................ 139
5.5.1.1 Zone-Selective Blocking ..................................................................................................... 139
5.5.1.2 Auxiliary and Reference Voltages....................................................................................... 141
5.5.1.3 Measured Value Supervision.............................................................................................. 141
5.5.1.4 Output Trip Supervision ...................................................................................................... 142
5.5.1.5 Battery Monitoring............................................................................................................... 142
5.5.1.6 Supervision in Maintenance Mode...................................................................................... 142
5.5.1.7 Cyclic Test .......................................................................................................................... 143
5.5.1.8 Supervision of External Current Transformer Circuits ........................................................ 143
5.5.1.9 Isolator Status Supervision ................................................................................................. 145
5.5.1.10 Supervisory of Circuit Breaker............................................................................................ 148
5.5.1.11 Overview of the Supervisory Functions .............................................................................. 149
5.5.2 Setting Notes ...................................................................................................................... 152
5.5.3 Settings for the Central Unit................................................................................................ 155
5.5.4 List of Information from the Central Unit............................................................................. 156
5.5.5 List of Information from the Bay Unit .................................................................................. 157
5.6 Oscillographic Fault Recording........................................................................................... 158
5.6.1 Mode of operation............................................................................................................... 158
5.6.2 Setting Notes ...................................................................................................................... 159
5.6.3 Settings for the Central Unit................................................................................................ 160
5.6.4 Settings of the Bay Unit ...................................................................................................... 160
5.6.5 List of Information from the Central Unit............................................................................. 160
5.7 Device................................................................................................................................. 161
5.7.1 Mode of operation............................................................................................................... 161
5.7.2 Annunciations ..................................................................................................................... 161
5.7.3 List of Information from the Central Unit............................................................................. 163
5.8 Power System Data ............................................................................................................164
5.8.1 Mode of operation............................................................................................................... 164
5.8.2 Setting Notes ...................................................................................................................... 164
5.8.3 Settings for the Central Unit................................................................................................ 164
5.8.4 Settings of the Bay Unit ...................................................................................................... 164
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