ABB Relion 650 Series Technical Manual page 11

6.3.7 Operation principle.......................................................................................................................157
6.3.8 Technical data............................................................................................................................... 160
6.4 Four step phase overcurrent protection OC4SPTOC (51/67)................................................160
6.4.1 Identification................................................................................................................................. 160
6.4.2 Functionality.................................................................................................................................. 160
6.4.3 Function block................................................................................................................................161
6.4.4 Signals............................................................................................................................................. 161
6.4.5 Settings...........................................................................................................................................162
6.4.6 Monitored data............................................................................................................................. 164
6.4.7 Operation principle...................................................................................................................... 164
6.4.8 Technical data............................................................................................................................... 166
6.5 Instantaneous residual overcurrent protection EFPIOC (50N)..............................................167
6.5.1 Identification .................................................................................................................................167
6.5.2 Functionality.................................................................................................................................. 167
6.5.3 Function block............................................................................................................................... 168
6.5.4 Signals.............................................................................................................................................168
6.5.5 Settings...........................................................................................................................................168
6.5.6 Monitored data............................................................................................................................. 168
6.5.7 Operation principle.......................................................................................................................169
6.5.8 Technical data............................................................................................................................... 169
6.6 Four step residual overcurrent protection EF4PTOC (51N/67N).......................................... 169
6.6.1 Identification ................................................................................................................................ 169
6.6.2 Functionality.................................................................................................................................. 170
6.6.3 Function block............................................................................................................................... 170
6.6.4 Signals..............................................................................................................................................171
6.6.5 Settings........................................................................................................................................... 172
6.6.6 Monitored data..............................................................................................................................174
6.6.7 Operation principle.......................................................................................................................174
6.6.7.1
6.6.7.2
6.6.7.3
6.6.7.4
6.6.7.5
6.6.7.6
6.6.7.7
6.6.8 Technical data................................................................................................................................ 181
6.7 Sensitive directional residual overcurrent and power protection SDEPSDE (67N)............181
6.7.1 Identification..................................................................................................................................181
6.7.2 Functionality.................................................................................................................................. 182
6.7.3 Function block............................................................................................................................... 182
6.7.4 Signals............................................................................................................................................. 182
6.7.5 Settings...........................................................................................................................................183
6.7.6 Monitored data..............................................................................................................................185
Line distance protection REL650
Technical manual
Operating quantity within the function..............................................................................174
Internal polarizing....................................................................................................................175
External polarizing for ground-fault function....................................................................177
Base quantities within the protection.................................................................................177
Internal ground-fault protection structure........................................................................ 177
Four residual overcurrent steps........................................................................................... 178
Directional supervision element with integrated directional comparison function. 178
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