11-6 Front-Panel Interface Date Code 20001006
SEL-351 Instruction Manual
Reclosing Relay Shot Counter Screen Operation (With Factory Settings)
With the breaker closed and the reclosing relay in the reset state (front-panel RS LED illumi-
nated), the reclosing relay shot counter screen appears as:
SET RECLOSURES=2
RECLOSE COUNT =0
The relay trips the breaker open, and the reclosing relay goes to the reclose cycle state (front-
panel CY LED illuminates). The reclosing relay shot counter screen still appears as:
SET RECLOSURES=2
RECLOSE COUNT =0
The first open interval (79OI1 = 30) times out, the shot counter increments from 0 to 1, and the
relay recloses the breaker. The reclosing relay shot counter screen shows the incremented shot
counter:
SET RECLOSURES=2
RECLOSE COUNT =1
The relay trips the breaker open again. The reclosing relay shot counter screen still appears as:
SET RECLOSURES=2
RECLOSE COUNT =1
The second open interval (79OI2 = 600) times out, the shot counter increments from 1 to 2, and
the relay recloses the breaker. The reclosing relay shot counter screen shows the incremented
shot counter:
SET RECLOSURES=2
RECLOSE COUNT =2
If the relay trips the breaker open again, the reclosing relay goes to the lockout state (front-panel
LO LED illuminates). The reclosing relay shot counter screen still appears as:
SET RECLOSURES=2
RECLOSE COUNT =2
If the breaker is closed, the reclosing relay reset timer times out (79RSLD = 300), the relay goes
to the reset state (front-panel LO LED extinguishes and RS LED illuminates), and the shot
counter returns to 0. The reclosing relay shot counter screen appears as:
SET RECLOSURES=2
RECLOSE COUNT =0
Courtesy of NationalSwitchgear.com
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