Figure 202: Pole Discrepancy Logic Diagram (Module 62) - GE MiCOM P40 Agile Technical Manual

Chapter 11 - Autoreclose
5.20 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.
5.20.1 POLE DISCREPANCY LOGIC DIAGRAM
A/ R Lockout
Lockout Alarm
Pol Disc Ext
AR 1 pole in prog
CB Open A ph
CB Open B ph
CB Open C ph
V03384

Figure 202: Pole Discrepancy Logic Diagram (Module 62)

5.21 CIRCUIT BREAKER TRIP CONVERSION
Circuit breakers should only trip single-pole or three-pole. The trip conversion logic ensures that the tripping is
either single-pole or three-pole. The trip conversion logic ensures that all conditions that should cause three-pole
tripping do so. Indication of the number of phases that caused tripping is provided.
342
1
&
1
&
0.04
&
0
P543i/P545i
Pole Discrepancy
P54x1i-TM-EN-1