GE P54C User Manual

5.5.2 AUTORECLOSE MODES ENABLE LOGIC DIAGRAM
V03309
* Defaults to High if not mapped in PSL
AR In Service
AR Enable CB
AR Mode 1P
AR Mode 3P
Seq Counter = 0
Seq Counter = 1
CB1 LSPAROK
CB1L3 PAROK
AR Mode
AR 1P
AR 1/3P
AR 3P
AR Opto
&
1
&
1
&
&
&
1
&
*
Figure 62: Autoreclose Modes Enable logic diagram (Module 9)
5.6 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 thr
ee-phase.
Any protection operations that occur for subsequent faults while the Autoreclose cycle remains in progress will be
tripped three-phase.
5.6.1 AR FORCE THREE-PHASE TRIP LOGIC DIAGRAM
V03313
CB1 L SPAROK CB1 L SPAROK
AR DISABLED
CB ARIP
TARANY
Seq Counter = 1
Seq Counter = 2
Seq Counter = 3
Seq Counter = 4
AR Lockout
A/R CB Unhealthy
Inhibit AR
AR Force 3 pole
&
&
&
1&
1
Figure 63: Force Three-phase Trip logic diagram (Module 10)
When a thr
ee-phase trip is forced, the DDB signal AR Force 3 pole is asserted.
5.7 AUTORECLOSE INITIATION LOGIC
Autoreclose initiation starts Autoreclose for a circuit breaker only if Autoreclose is enabled for the circuit breaker,
and the cir
cuit 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.
Chapter 7 - Autoreclose P54A/B/C/E
152 P54xMED-TM-EN-1

GE P54C Specifications

General

Brand	GE
Model	P54C
Category	Relays
Language	English