This is combined output from all timer channels. The output is active if at
least one timer channel is active.
The output is closed during reverse synchronizing and opens when the
output BTB status is activated (= BTB was closed).
NOTE:
The output can be used for external synchronizing module control.
This output is closed during synchronization when all synchro conditions
have been fulfilled. The output is opened either when:
the synchro conditions are lost or
the corresponding breaker has been closed or
the sychronizing was interrupted or timed out.
Synchro conditions are following:
Slip frequency is lower than 0.25 Hz
Phase shift between mains and bus (BusLeft and BusRight - in BTB
application) voltage must be within range of ±Phase window for
period longer than Dwell time.
Voltage difference between mains and bus (BusLeft and BusRight -
in BTB application) voltage (in all phases) must be lower or equal to
Voltage window for period longer than Dwell time.
The output is intended for manual synchronization. Automatic closing of BTB
must be disabled for this case. Use the input BTB disable.
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