Relay control AVR adjustment
Switchboard control must be activated.
The genset breaker must be open, and there must be no load on the genset.
1. Start the genset (if it is not already running).
2. Adjust the AVR until the generator output is at the nominal voltage.
3. If necessary, tune the AVR for stable voltage control.
INFO
Refer to the AVR manufacturer for information on how to adjust and tune the AVR.
Analogue control AVR adjustment
Switchboard control must be activated.
The genset breaker must be open, and there must be no load on the genset.
1. Enable the Regulators > AVR > Reset manual AVR to neutral input.
2. Start the genset (if it is not already running).
3. Adjust the AVR until the generator output is at the system nominal voltage.
4. If necessary, tune the AVR for stable voltage control.
5. Make sure that necessary droop is configured correctly.
INFO
Refer to the AVR manufacturer for information on how to adjust and tune the AVR.
5.1.5 Testing the switchboard GOV and AVR controls
Use the procedure below to ensure that you can control the genset from the switchboard by using the switchboard GOV and
AVR controls.
INFO
This is only a check of the governor and AVR, and not a controller check.
Preconditions
• Switchboard control must be activated.
• The genset breaker must be open.
• The genset must be running.
• There must be no load on the genset.
Testing the switchboard controls
1. Use the Manual GOV increase control on the switchboard. Does the engine speed increase?
• Yes: Continue with the test.
• No: Troubleshoot the switchboard's GOV up wiring. Alternatively, the engine could be the problem.
2. Use the Manual GOV decrease control on the switchboard. Does the engine speed decrease?
• Yes: Continue with the test.
• No: Troubleshoot the switchboard's GOV down wiring. Alternatively, the engine could be the problem.
PPU 300 Commissioning guidelines 4189341106 UK
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