Circuit Breaker Fail Logic - Part 2 - GE MiCOM P40 Agile Technical Manual

Single breaker current differential (with distance)

Hide thumbs Also See for MiCOM P40 Agile:

Table of Contents

Chapter 12 - CB Fail Protection

CIRCUIT BREAKER FAIL LOGIC - PART 2

External Trip A

IA<FastUndercurrent

Figure 209: Circuit Breaker Fail logic - part 2

This diagram shows only phase-A for a single-CB device. The diagrams for phases B and C follow the same principle and are

not repeated here.

Ext Prot Reset

CB Open & I<

Prot Reset & I<

Prot Reset OR I<

Rst OR CBOp & I<

TripStateExt A

Latch ATripResetIncomp

P54x1i-TM-EN-1

Table of Contents

Micom p543i Micom p545i