This setpoint adjusts maximum absolute value of difference between actual
phase angle between the bus and mains voltages for synchronizing.
NOTE:
To disable issuing the breaker close command (i.e. for test purpose) adjust
this setpoint to 0. Synchronizing will continue until timeout occurs or the
breaker is closed externally.
NOTE:
The setpoint works as a window surrounding the BtoM AngleReq setpoint.
E.g. for BtoM AngleReq = +30° and Phase window = 5°, the breaker closure
is allowed for phases +25° to +35°.
If you want to lock out the breaker closing during synchronizing control loop
test, set Phase window = 0. This allows the control loop setpoints to be tuned
while actual breaker closing is blocked.
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