Manual 37259C
SPM-D11 - Synchronizing Unit
© Woodward
Page 67/79
7.
Synchronizing the power circuit breaker:
a) Disconnect the breaker operation connection to the power circuit breaker;
b) The voltage to which the system has to synchronize must be within the permissible range
c) The signal "Enable CB" must be enabled.
e) When the generator voltage exceeds 50 % of the configured rated value, the frequency controller starts
to operate. Set the parameters of the controller in such a way that the set point value is controlled in an
optimum manner.
f) Prior to the automatic closing of the circuit breaker ensure that all measuring inputs are wired and ap-
plied correctly. Upon reaching the synchronous point check whether all conditions for synchronizing
have been met. This test is best done using a differential voltage meter direct at the power circuit
breaker.
8.
Dead bus start
a) Disconnect the breaker operation connection to the power circuit breaker.
b) Check all conditions and measuring voltages and test the close command.
c) Allow the generator circuit breaker to close automatically.
9.
After successful closing of the power circuit breaker the LED "Gen CB - ON" must illuminate.
