Autoreclose Sequence Counter Logic Diagram; Autoreclose Cycle Selection; Single-Phase Autoreclose Cycle Selection Logic Diagram; Figure 70: Autoreclose Sequence Counter Logic Diagram (Module 18) - GE P4A Technical Manual

Chapter 7 - Autoreclose
5.9.1

AUTORECLOSE SEQUENCE COUNTER LOGIC DIAGRAM

AR Initiation
ARIP
AR Start
1P Dtime
Seq Counter = 1
Single Pole Shot
Three Pole Shot
Prot Re-op
V03326

Figure 70: Autoreclose Sequence Counter logic diagram (Module 18)

5.10

AUTORECLOSE CYCLE SELECTION

The Autoreclose cycle selection logic is responsible for determining whether the Autoreclose will start as single-
phase or three-phase.
5.10.1

SINGLE-PHASE AUTORECLOSE CYCLE SELECTION LOGIC DIAGRAM

CB1 L ARIP
CB1 L SPAROK
TMEM1PH
CB1 L ARIP
CB1 L 3 PAR
V03329

Figure 71: Single-phase Autoreclose Cycle Selection logic diagram (Module 19)

158
&
&
&
Sequence Counter
Increment on rising edge
Reset on falling edge
&
&
1
1
S
Q
R
P54A/B/C/E
&
Seq Counter = 0
Seq Counter = 1
Seq Counter = 2
Seq Counter = 3
Seq Counter = 4
Seq Counter > 4
Seq Counter >Set
S
LastShot
Q
R
AR 1 pole in prog
CB1 L SPAR
P54xMED-TM-EN-1