Figure 177: Autoreclose Modes Enable Logic Diagram (Module 9); Figure 178: Force Three-Phase Trip Logic Diagram (Module 10) - GE MiCOM P40 Agile Technical Manual

Single breaker current differential (with distance)

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Chapter 11 - Autoreclose

AUTORECLOSE MODES ENABLE LOGIC DIAGRAM

AR In Service

AR Enable CB

Seq Counter = 0

Seq Counter = 1

Figure 177: Autoreclose Modes Enable logic diagram (Module 9)

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.

AR FORCE THREE-PHASE TRIP LOGIC DIAGRAM

CB1 L SPAROK

Seq Counter = 1

Seq Counter = 2

Seq Counter = 3

Seq Counter = 4

A/R CB Unhealthy

When a three-phase trip is forced, the DDB signal AR Force 3 pole is asserted.

AUTORECLOSE INITIATION LOGIC

Autoreclose initiation starts Autoreclose for a circuit breaker only if Autoreclose is enabled for the circuit breaker,

and the circuit breaker is in service. When an Autoreclose cycle is started, Autoreclose in progress (ARIP) is

indicated. The indication remains until the end of the cycle. The end of the cycle is signified by successful

Autoreclose, or by lockout.

* Defaults to High if not mapped in PSL

CB1 L SPAROK

AR Force 3 pole

P54x1i-TM-EN-1

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