Protection Functions
PRS-7367 117
be disabled.
3.22.2.3 AR Initiation
When 79AR is initiated, the device will initialize a new shot and output 79AR_Active signal until AR
drop off after Reclaim time. When AR is active, the 79AR_BlkInstTr BO is active until 79AR_Active
is returned. There are two methods to initialize the AR:
AR initiated by tripping signal
79AR can be initiated by tripping signal, and the tripping signal may be from internal trip signal or
external trip signal.
When 79AR is ready to reclose and the tripping command is received, this tripping command will
be kept in the device, 79AR will be initiated after the tripping command drops off (Drop off
condition: corresponding phase current is nil: IA/B/C/3I0D≤0.05In).
Figure 3.22-4 79AR Initiated by Tripping Signal
AR initiated by CB State
The setting 79AR_CBStr is available for selection that 79AR is initiated by CB state. When 79AR is
ready to reclose, 79AR will be initiated if circuit breaker is open and corresponding phase current
is nil (IA/B/C/3I0D≤0.05In).
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