How to Operate Emergency Diesel Generator?

As a backup power source, emergency diesel generator provides AC power to the load in case of main power failure, ensuring continuous power supply of the load. It is widely used in various industries such as communication, coal mine, etc., and various faults occurred in the operation of the diesel generator set. Most of them are caused by untimely, inoperative or improper operation of the operation manager.

Emergency Diesel Generator Start-up Operation

Release the "emergency stop" button on the control panel.

Turn the power switch knob on the control panel to the “ON” position, the power indicator light is red, and the generator's controller power is on and displays normally.

Press the manual button on the generator controller panel, the indicator on the manual button lights up, and a palm is displayed in the lower right corner of the LCD screen. This is the manual start mode.

Press the start button on the generator controller panel to start the generator, the generator start indicator lights up, and the LCD screen shows that the three-phase voltage rises from 0V to 230V.

Check the generator for abnormal noise or vibration, whether there is oil leakage, water leakage or air leakage, and whether the control panel displays abnormality.

After confirming that the generator power output has stabilized at about 230V, close the generator control cabinet output circuit breaker, and the diesel generator starts normal power supply.

Emergency Power Output Operation

Check the emergency power supply incoming cabinet breaker, the voltage output shows about 230V, and check that the output status of each feeder circuit is normal.

Operation of Emergency Power Distribution Cabinet in Each Substation

Check and confirm that the incoming power supply of the emergency power distribution cabinet of each substation has been cut to the generator power supply state (backup power supply).

If ATS is not switched to the standby power state, the ATS control switch is cut to the manual state, and the special handle is used to manually switch to the standby power supply state (generator power supply).

Check the normal power supply status of each feeder circuit of the emergency power distribution cabinet.

After the diesel generator is working normally, it is necessary to check the running state of the generator and the output current, voltage and other parameters.

Emergency Diesel Generator Shutdown Operation

Confirm that the incoming power supply of the emergency power distribution cabinet of each substation has been cut to the mains power supply (common power supply).

Confirm that the load has completely exited and disconnect the generator emergency power inlet cabinet circuit breaker.

Disconnect the generator control cabinet output main circuit breaker.

Make sure that the generator is cooled for about 3 minutes at idle speed, then press the stop button on the generator controller panel, the stop button indicator lights up, and the generator stops normally.

If there is an emergency to stop the generator, you can not turn off the generator control cabinet output circuit breaker, directly press the red "emergency stop" button on the controller panel, and the generator will stop in an emergency.

After confirming that the generator is stopped, turn the power switch knob on the control panel to the “off” position, the power indicator light is off, and press the “emergency stop” button to complete the shutdown of the diesel generator.

Notes:

When the diesel generator is running at no load, it shall not exceed 5 minutes.

Do not take off the battery during the operation of the diesel generator to avoid the damage of electronic components.

Do not open the lid of the water tank before the diesel generator set is cooled to prevent scalds.

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