Table of Contents
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7SS52 V4 Manual
C53000-G1176-C182-3
5.4 End Fault Protection ........................................................................................................... 135
5.4.1 End Fault Protection in the Feeder..................................................................................... 135
5.4.2 Protection with fault in the ”Dead Zone” of the Bus Coupler............................................... 137
5.4.2.1 Without detection of the circuit-breaker position................................................................. 137
5.4.2.2 With detection of the circuit-breaker position, circuit breaker closed.................................. 137
5.4.2.3 With detection of the circuit-breaker position, circuit breaker open .................................... 138
5.4.2.4 CLOSE Command of the Bus Coupler Circuit Breaker ...................................................... 138
5.4.3 Setting Notes...................................................................................................................... 139
5.4.4 Settings for the Central Unit................................................................................................ 139
5.4.5 List of Information from the Central Unit............................................................................. 139
5.4.6 List of Information from the Bay Unit .................................................................................. 139
5.5 Supervisory Functions .......................................................................................................140
5.5.1 Functional Description ........................................................................................................ 140
5.5.1.1 Zone-Selective Blocking ..................................................................................................... 140
5.5.1.2 Auxiliary and Reference Voltages....................................................................................... 142
5.5.1.3 Measured Value Supervision.............................................................................................. 142
5.5.1.4 Output Trip Supervision...................................................................................................... 143
5.5.1.5 Battery Monitoring............................................................................................................... 143
5.5.1.6 Supervision in Maintenance Mode...................................................................................... 143
5.5.1.7 Cyclic Test.......................................................................................................................... 144
5.5.1.8 Supervision of External Current Transformer Circuits ........................................................ 144
5.5.1.9 Isolator Status Supervision................................................................................................. 146
5.5.1.10 Supervisory of Circuit Breaker............................................................................................ 151
5.5.1.11 Overview of the Supervisory Functions.............................................................................. 152
5.5.2 Setting Notes...................................................................................................................... 154
5.5.3 Settings for the Central Unit................................................................................................ 157
5.5.4 List of Information from the Central Unit............................................................................. 158
5.5.5 List of Information from the Bay Unit .................................................................................. 159
5.6 Oscillographic Fault Recording........................................................................................... 160
5.6.1 Mode of operation............................................................................................................... 160
5.6.2 Setting Notes...................................................................................................................... 161
5.6.3 Settings for the Central Unit................................................................................................ 162
5.6.4 Settings of the Bay Unit...................................................................................................... 162
5.6.5 List of Information from the Central Unit............................................................................. 162
5.7 Device................................................................................................................................. 163
5.7.1 Mode of operation............................................................................................................... 163
5.7.2 Setting notes....................................................................................................................... 163
5.7.3 Annunciations..................................................................................................................... 163
5.7.4 Settings for the Central Unit................................................................................................ 165
5.7.5 List of Information from the Central Unit............................................................................. 165
5.8 Power System Data............................................................................................................166
5.8.1 Mode of operation............................................................................................................... 166
5.8.2 Setting Notes...................................................................................................................... 166
5.8.3 Settings for the Central Unit................................................................................................ 166
5.8.4 Settings of the Bay Unit...................................................................................................... 166
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