Autoreclose Inhibit; Figure 147: Reclaim Time Logic; Figure 148: Ar Initiation Inhibit - GE MiCOM P40 Agile Technical Manual

P14D
Lockout Reset
Yes
HMI Clear
Reset Lockout
Lockout alarm
CB Closed 3 ph
Reset Lockout by
CB Close
User Interface
Reset Lckout Alm
CB Open 3 ph
Auto close
CB Closed 3 ph
AR In Progress
tReclaim Extend
On Prot Start
No Operation
Main Protection Start
SEF Protection Start
DT Complete
Autoreclose Start
Sequence Co -ord
Enabled
Hold Reclaim Output
AR SeqCounter 1
AR SeqCounter 2
AR SeqCounter 3
AR SeqCounter 4
CB Open 3 ph
AR Lockout
Reset Total AR
Yes
V00511

Figure 147: Reclaim Time logic

7.8

AUTORECLOSE INHIBIT

To ensure that autoreclosing is not initiated for a manual CB closure on to a pre-existing fault (switch on to fault),
the AR on Man Close setting can be set to Inhibited. With this setting, Autoreclose initiation is inhibited for a period
equal to setting AR Inhibit Time following a manual CB closure. The logic for AR Inhibit is as follows:
CB Closed 3 ph
AR In Progress
AR on Man Close
Inhibited
Enabled
Main Protection Start
SEF Protection Start
Auto Mode (int)
V00512

Figure 148: AR Initiation inhibit

If a protection operation occurs during the inhibit period, Autoreclose is not initiated. A further option is provided
by setting Man Close on Flt. If this is set to Lockout, Autoreclose is locked out (AR Lockout) for a fault during the
P14D-TM-EN-8
1
Reset
& Lockout
& S
Q
1
R
&
&
&
1
1
1
&
&
Pulse to start inhibit timer
&
&
1
& S
Q
R
&
&
&
&
&
1
&
Chapter 13 - Autoreclose
Successful close
Reclaim In Prog
Reclaim Complete
nc
Successful
1 shot Counter
st
Reset
nc
Successful
2 shot Counter
nd
Reset
nc
Successful
3 shot Counter
rd
Reset
nc
Successful
4 shot Counter
th
Reset
nc
Persistant
Faults Counter
Reset
Autoreclose inhibit
273