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IB02602004E
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Instructional Literature
Effective: May 2008
Page
165
Instructions for the FP-6000 Protective Relay
Figure 60. Autoreclose Control Blocking Logic in Run Mode.
Figure 61. Autoreclose Reclose Lockout Logic.
While in Run mode, if there is no blocking and lockout condition,
the autoreclose logic will generate a reclose signal after Shot 1
breaker off timer is expired. Once the breaker is closed, if there
is no fault found within Run2Ready timer setting, the autoreclose
logic will go back to Ready mode. If there is a fault within
Run2Ready timer setting, the relay with the current shot
protection settings will trip on the fault, and then the autoreclose
logic will increment to next shot stage and wait for next reclose
initiate. If the fault persists, the autoreclose logic will go all
reclose shots allowed and eventually go into Lockout mode. The
reclose initiate logic in Run mode is essentially the same as in
Ready mode. The only difference is that the autoreclose logic
will stay in Run mode when a reclose initiate is recognized while
no lockout condition is present.
S
R
Q
Lockout
Breaker Flashover
Breaker Wear Lockout
AR Block Timeout
Breaker Not Enough Capacity
External Lockout
PLC SH1-3 Lockout, 79RL
Reset AR Lo
ck
ou
t
Exceed Max Shots
Autoreclose Failure Timeout
Exceed Max Shots Per Hour Limit
Run
S
R
Q
S
R
Q
Lockout
Breaker Flashover
Breaker Wear Lockout
AR Block Timeout
Breaker Not Enough Capacity
External Lockout
PLC SH1-3 Lockout, 79RL
Reset AR Lo
ck
ou
t
Exceed Max Shots
Autoreclose Failure Timeout
Exceed Max Shots Per Hour Limit
Run