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What is the procedure for the On-Load test of the Emergency Generator?

05 Oct, 05:55

Oct. 5, 2019, 5:55 a.m.
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Answer:

The On-Load test of the Emergency Generator should be carried out every 4 months or more often if the Company's procedures require so. The purpose of this test is to ensure that EDG is capable to run for a prolonged time and able to reliably provide power for the critical equipment in the case of main generators failure or an emergency, like fire or flooding in the Engine Room.

Unlike the weekly test run of the Emergency Generator, during the On-Load test, it must run at least for 1 hour with a significant load. It is a good practice to use an Emergency Fire Pump as a test load during this procedure.

  1. Disconnect Emergency Switchboard from the Main Switchboard by switching off the breaker.
  2. The Emergency Generator should automatically start and come take a load of power consumers, connected to the Emergency Switchboard.
  3. Start the Emergency Fire Pump with one hose connected on the deck for real-life situation simulation
  4. Run EDG under the load for at least 1 hour
  5. During the test, on a 10-minutes basis record parameters of EDG engine (LO pressure, Cooling FW temperature etc) and Emergency Switchboard parameters (Frequency, Current, Voltage, and Load)
  6. Upon completion of the test, issue a certificate, signed by a person in charge and Chief Engineer. The Certificate should contain the details of the test (duration, the load connected) etc and log of recorded parameters.

emergency_generator_onload_test

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05 Oct, 06:11

Oct. 5, 2019, 6:11 a.m.
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