Woodward GCP-20 Series User Manual

Manual 37128A GCP-20 Series - Genset Control
Page 42/190 © Woodward
Circuit Breaker Operation
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NOTE
For the description of the switch logics please refer to the chapter Breaker Logic on page 98.
GCB Synchronization
The generator power circuit breaker (GCB) will be synchronized with frequency and voltage correction if the fol-
lowing conditions are met simultaneously:
Preset limits admissible • voltage V
SS
85 to 112 % V
setpoint
Busbar • frequency f
SS
90 to 110 % f
rated
Automatic operation
• the "AUTOMATIC" operating mode is selected
• one of the circuit breaker logics "parallel", "interchange" or "closed transition" are acti-
vated while in configuration mode
• no alarm class 2 or 3 alarm is present
• on input "Automatic 1" (terminal 3) or "Automatic 2" (terminal 5) is applied, or the re-
mote starting signal is activated via the interface
• voltage is applied to the busbar
• the genset is running, and the generator voltage and frequency are within the range
• the busbar voltage and frequency are within the preset limits
• the delayed engine monitoring has been executed
Manual operation
• "MANUAL" operating mode has been selected
• one of the circuit breaker logics "parallel", "interchange" or "closed transition" is active
while in configuration mode
• no alarm class 2 or 3 alarm is present
• voltage is applied to the busbar
• the genset is running, and the generator voltage and frequency are within the range
• the busbar voltage and frequency are within the preset limits
• the button "GCB ON" has been activated
Load test operation
• the "TEST" operating mode is selected
• one of the circuit breaker logics "parallel", "interchange" or "closed transition" are acti-
vated while in configuration mode
• no alarm class 2 or 3 alarm is present
• voltage is applied to the busbar
• the genset is running, and the generator voltage and frequency are within the range
• the busbar voltage and frequency are within the preset limits
• the button "GCB ON" has been activated

Woodward GCP-20 Series Specifications

General

Brand	Woodward
Model	GCP-20 Series
Category	Control Unit
Language	English