GE MiCOM P40

5.20.1 RESET CB LOCKOUT LOGIC DIAGRAM
V03383
Rst CB1 Lockout
Res LO by CB IS
Enabled
&
CB1CRLo
Res LO by UI
Enabled
ARDisabled
Reset CB1 LO
Yes
&
Res LO by NoAR
Enabled
&
1
Num CBs
CB2 Only
Res LO by ExtDDB
Enabled
&
CB1 AR Lockout
Res LO by TDelay
Enabled
&
0
t
LO Reset Time
1
ResCB1Lo
Rst CB2 Lockout
Res LO by CB IS
Enabled
&
CB2CRLo
Res LO by UI
Enabled
ARDisabled
Reset CB2 LO
Yes
&
Res LO by NoAR
Enabled
&
1
Num CBs
CB2 Only
Res LO by ExtDDB
Enabled
&
CB2 AR Lockout
Res LO by TDelay
Enabled
&
0
t
LO Reset Time
1
ResCB2Lo
446
306
1422
328
Figure 186: Reset Circuit Breaker Lockout Logic Diagram (Modules 57 & 58)
5.21
POLE DISCREPANCY
In a three-pole CB, certain combinations of poles open and closed are indicative of a problem. The Pole
Discrepancy Logic combines an indication of a Pole Discrepancy condition from the CB Monitoring logic with
signals from the internal Autoreclose logic to produce a combined Pole Discrepancy indication for the CB.
P446SV Chapter 11 - Autoreclose
P446SV-TM-EN-1 329