GE MiCOM P40

5.7 AR FORCE THREE-PHASE TRIP LOGIC
Following single-phase tripping, while the Autoreclose cycle is in progress, and upon resetting of the protection
elements, tripping switches to three-phase.
Any protection operations that occur for subsequent faults while the Autoreclose cycle remains in progress will be
tripped three-phase.
5.7.1 FORCE THREE-PHASE TRIP LOGIC DIAGRAM
V03314
CB1 L SPAROK
Seq Counter = 1
Seq Counter = 2
Seq Counter = 3
Seq Counter = 4
CB1 AR Lockout
AR CB1 Unhealthy
Inhibit AR
AR Force CB1 3P
&
&
&
1
CB1 F SPAROK
CB1 ARIP
TARANY
1
1
CB2Tripping Mode
3 Pole
1 and 3 pole
&
Leader CB2
AR In Service
NUM CBs
CB1 Only
CB2 Only
Both CB1&CB2
1
1
&
CB21 L SPAROK
Seq Counter = 1
Seq Counter = 2
Seq Counter = 3
Seq Counter = 4
CB2 AR Lockout
AR CB2 Unhealthy
Inhibit AR
AR Force CB2 3P
&
&
&
1
CB2 F SPAROK
CB2 ARIP
TARANY
1
1
CB1Tripping Mode
3 Pole
1 and 3 pole
&
Leader CB1
&
1554
847
848
849
850
306
307
1420
1431
1435
847
848
849
850
328
329
1420
1530
1585
858
1485
Figure 156: Force three-phase trip logic diagram (Module 10)
P446SV Chapter 11 - Autoreclose
P446SV-TM-EN-1 297