Schweitzer Engineering Laboratories SEL-751 - Figure 4.82 Reclose Supervision Limit Timer Operation

4.133
Date Code 20170927 Instruction Manual SEL-751 Relay
Protection and Logic Functions
Group Settings (SET Command)
(Refer to Bottom of Figure 4.81)
Figure 4.82 Reclose Supervision Limit Timer Operation
Settings and General Operation
Figure 4.81 contains the following SELOGIC control equation setting:
79CLS (reclose supervision conditions—checked after
reclosing relay open interval time-out)
and setting:
79CLSD (Reclose Supervision Limit Time)
See the Tabl e 4. 54 for Recloser Control settings.
For Most Applications
Refer to the top of Figure 4.81.
For most applications, the Reclose Supervision Limit Time setting should be
set to zero seconds:
79CLSD := 0.00
open interval 1
times out
open interval 1
times out 1
Open Interval
Timer
Open Interval
Timer
Reclose Supervision
Limit Timer
Reclose Supervision
Limit Timer
79CLS (Reclose
Supervision Condition)
79CLS (Reclose
Supervision Condition)
RCSF (Reclose
Supervision Failure)
RCSF (Reclose
Supervision Failure)
OUT102 = CLOSE
(Close Output Contact)
OUT102 = CLOSE
(Close Output Contact)
79OI1
79OI1
79CLSD
79CLSD
One Processing
Interval
79CLS not asserted.
79CLSD times out.
79CLS asserts before
79CLSD times out.
No Reclosing
Reclosing Proceeds