Cb State Monitor; Circuit Breaker Open Logic; Figure 149: Cb State Logic Diagram (Module 1) - GE MiCOM P40 Technical Manual

Chapter 11 - Autoreclose
5.1.1

CB STATE MONITOR

420
CB1 Aux 3ph(52-A)
424
CB1 Aux 3ph(52-B)
CB1 Status Input
52A 3 pole
52B 3 pole
52A & 52B 3 pole
421
CB1 Aux A(52-A)
425
CB1 Aux A(52-B)
CB1 Status Input
52A 1 pole
52B 1 pole
52A & 52B 1 pole
422
CB1 Aux B(52-A)
426
CB1 Aux B(52-B)
CB1 Status Input
52A 1 pole
52B 1 pole
52A & 52B 1 pole
423
CB1 Aux C(52-A)
427
CB1 Aux C(52-B)
CB1 Status Input
52A 1 pole
52B 1 pole
52A & 52B 1 pole
V01265

Figure 149: CB State logic diagram (Module 1)

5.2

CIRCUIT BREAKER OPEN LOGIC

The Circuit Breaker Open logic module produces internal signals indicating the open status of one or more phases.
These signals are used by some of the Autoreclose logic modules.
290
XOR
XOR
Phase B
(Same logic as phase A )
Phase C
(Same logic as phase A )
&
& 1
&
&
& 1
&
&
&
& 1
&
&
&
& 1
&
&
&
907
1
CB1 Closed 3 ph
903
1
CB1 Open 3 ph
1 908
CB1 Closed A ph
904
1
CB1 Open A ph
909
1
CB1 Closed B ph
1 905
CB1 Open B ph
1 910
CB1 Closed C ph
906
1
CB1 Open C ph
301
1
CB1 Status Alm
CB1 Status Time
P446SV-TM-EN-1
P446SV