Siemens SIPROTEC 4 7VK61 - Page 12

2.2.4 Information List...........................................................................................................66
2.3 Overcurrent protection (optional)......................................................................................69
2.3.1 General....................................................................................................................... 69
2.3.2 Functional Description.................................................................................................69
2.3.3 Setting Notes...............................................................................................................75
2.3.4 Settings.......................................................................................................................80
2.3.5 Information List...........................................................................................................81
2.4 Synchronism and voltage check (optional).........................................................................83
2.4.1 Functional Description.................................................................................................83
2.4.2 Setting Notes...............................................................................................................89
2.4.3 Settings.......................................................................................................................94
2.4.4 Information List...........................................................................................................95
2.5 Under and over-voltage protection (optional).................................................................... 97
2.5.1 Overvoltage Protection................................................................................................ 97
2.5.2 Undervoltage protection............................................................................................102
2.5.3 Setting Notes.............................................................................................................107
2.5.4 Settings.....................................................................................................................110
2.5.5 Information List.........................................................................................................112
2.6 Circuit breaker failure protection (optional)..................................................................... 115
2.6.1 Functional Description...............................................................................................115
2.6.2 Setting Notes.............................................................................................................125
2.6.3 Settings.....................................................................................................................128
2.6.4 Information List.........................................................................................................129
2.7 Monitoring Functions......................................................................................................131
2.7.1 Measurement Supervision......................................................................................... 131
2.7.1.1 Hardware Monitoring...........................................................................................131
2.7.1.2 Software Monitoring............................................................................................ 133
2.7.1.3 Monitoring External Transformer Circuits..............................................................133
2.7.1.4 Monitoring the Phase Angle of the Positive Sequence Power.................................138
2.7.1.5 Malfunction Reaction........................................................................................... 140
2.7.1.6 Setting Notes....................................................................................................... 141
2.7.1.7 Settings............................................................................................................... 143
2.7.1.8 Information List................................................................................................... 144
2.7.2 Trip circuit supervision...............................................................................................144
2.7.2.1 Functional Description......................................................................................... 144
2.7.2.2 Setting Notes....................................................................................................... 147
2.7.2.3 Settings............................................................................................................... 147
2.7.2.4 Information List................................................................................................... 147
2.8 Function Control and Circuit Breaker Test ....................................................................... 149
2.8.1 Function Control........................................................................................................149
2.8.1.1 Closure Detection.................................................................................................149
2.8.1.2 Detection of the Circuit Breaker Position............................................................... 151
2.8.1.3 Open Pole Detektor.............................................................................................. 153
2.8.1.4 Pickup Logic of the Entire Device.......................................................................... 155
2.8.1.5 Tripping Logic of the Entire Device....................................................................... 155
2.8.2 Circuit breaker trip test.............................................................................................. 158
2.8.2.1 Function Description............................................................................................ 159
2.8.2.2 Information List................................................................................................... 159
Table of Contents
12 SIPROTEC 4, 7VK61, Manual
C53000-G1176-C159-5, Edition 05.2018