Woodward GCP-30 Series - Page 75

Manual 37365A GCP-30 Series Packages - Genset Control
© Woodward Page 75/179
"PARALLEL" Breaker Logic
Configuring Parameter 111 to "PARALLEL" enables parallel operation.
NOTE
Parallel breaker logic must be selected for the following operation modes:
• Isolated operation
• Isolated operation with multiple generators in parallel
• Mains parallel operation
In the event of an add-on request, the following occurs:
• The GCB is synchronized and closed
• The necessary generator assumes load and real power and/or reactive power is controlled
Following the add-off request, the following occurs:
• The generator sheds load and the generator power factor is controlled to "1.00" (unity)
• The GCB is opened
• The engine is shut down following the configured cool down period
[GCP-32] The MCB is synchronized with the energized common bus and closed if:
• Terminal 53 "Enable MCB" is energized
• The GCB is closed
[GCP-32] The MCB is closed onto the de energized common bus and closed if:
• The GCB is open
• The MCB is open
• The busbar is dead (de-energized)
• Terminal 53 "Enable MCB" is energized
NOTE
Soft unloading (power reduction) is carried out prior to opening the GCB when a stop command is is-
sued to the engine unless an F3 class alarm has been detected.