Protection Reoperation And Evolving Fault Logic Diagram; Fault Memory Logic Diagram; Autoreclose In Progress; Figure 67: Protection Reoperation And Evolving Fault Logic Diagram (Module 20) - GE P4A Technical Manual

Chapter 7 - Autoreclose
5.7.4

PROTECTION REOPERATION AND EVOLVING FAULT LOGIC DIAGRAM

TMEMANY
TARANY
Discrim Time
1P DTime
Prot ReOp
Seq Counter = 1
LastShot
A/ R Lockout
Set CB1 CL
CB Closed 3 ph
CB ARIP
V03331

Figure 67: Protection Reoperation and Evolving Fault logic diagram (Module 20)

5.7.5

FAULT MEMORY LOGIC DIAGRAM

Trip Inputs A
Ext Fault APh
Trip Inputs B
Ext Fault BPh
Trip Inputs C
Ext Fault CPh
AR Start
RESPRMEM
V03320

Figure 68: Fault Memory logic diagram (Module 15)

5.8

AUTORECLOSE IN PROGRESS

The AR In Progress module produces various signals to indicate to other modules and functions that an
Autoreclose operation is currently in progress.
156
0
&
0.02
t
&
0
0
0.02
0
&
0.02
1
&
S
R
1
&
S
R
1
&
S
R
&
1
&
&
&
&
S
Q
R
1
=
Q
2
Q
&
Q
Prot ReOp
Evolve Lock
Evolve 3Ph
&
CB Failed AR
FLTMEM 2P
FLTMEM 3P
P54xMED-TM-EN-1
P54A/B/C/E