The steps of powering off the power plant, how to operate the power generation after it is turned of

Generator Shutdown Principle Steps:

1. Reduce active load and reactive load.

2. Reduce the active load to zero and pull the generator outlet switch (circuit breaker).

3. The excitation current.

To a minimum, pull on the generator excitation switch (circuit breaker).

4. Disconnect the operating power supply of the motor switch and the excitation switch.

5. Pull open the generator outlet switch (large units do not have it).

6. Pull open the generator PT knife switch.

7. Isolated excitation system.

In this way, the generator is considered to be down.

After the shutdown of Yuchai generator set, it is necessary to carry out the following work:

Check the presence of the unit"Three leaks"Hu Jingxiang (lubricating oil, fuel, coolant);

Close the fuel valve;

Close the inlet and exhaust facilities of the machine room (if necessary);

Turn off the generator output and open the air;

Turn off the power key switch of the trouser control screen, take out the key, and keep it properly (if necessary);

When the unit is shut down for a long time or the unit is maintained, the negative cable of the starting battery of the unit must be removed, and the fuel and coolant should be drained if necessary.

For the self-starting machine Nian Zao group, the above part of the clause is not suitable, and the work after the shutdown of the self-starting unit is to let it continue to be in the state before the start-up (standby state), so as to prepare for the emergency start.

The start-up steps of the diesel generator set are not as simple and easy as imagined, and many new users have certain misunderstandings about the start-up of the diesel generator set, if it is not used properly, it will have a bad impact on the diesel generator set. Then to start the diesel generator set correctly, we can follow the following steps to operate.

1.Loosen the deflation screw on the fuel injection pump and use the fuel hand pump to remove air from the fuel system, while fixing the adjustment control handle at the appropriate throttle position for the appropriate starting speed.

2.Press the start button to start the diesel engine, such as 10 seconds (up to 15 seconds) If the diesel engine still can't catch fire and start, it should wait for 1 minute before starting it for the second time, if it still can't start for three consecutive times, you should check and find out the cause of the failure.

3.After the diesel engine is started, you should pay close attention to the oil pressure gauge reading (during normal operation, if the oil pressure gauge does not indicate, you should stop the machine immediately for inspection, and check whether the ammeter has a charging indication.

4.After the unit starts, the no-load speed is gradually increased to 1000-1200r min, (note that it is not allowed to run at low speed for a long time), and then the speed is increased to the rated speed after the preheating process of the diesel engine. When the outlet water temperature reaches 55 and the oil temperature reaches 45, it is allowed to enter full load operation.

5.With the change of the load of the unit, if the frequency and voltage are not within the specified range, the frequency and voltage should be adjusted in time to keep the rated value, and the unit is strictly forbidden to carry the load at low speed, so as not to damage the equipment.

6.After the unit is put into normal operation, the changes of water temperature, oil temperature and oil pressure should be observed at any time, as well as the readings of power meter, frequency meter, ammeter and voltmeter, and the abnormalities should be dealt with in time. Volvo diesel generator sets.

1.Check the oil level, coolant level, and fuel volume of the lubricating oil;

2.Check whether there is oil leakage and water leakage in each pipeline and joint of the diesel engine oil supply, lubrication, cooling and other systems;

3.Check whether the electrical circuit has hidden dangers such as broken skin, whether the electrical circuit of the grounding wire is loose, and whether the connection between the unit and the foundation is firm;

4.If the ambient temperature is below zero, a certain proportion of antifreeze must be added to the radiator;

5.When the diesel generator set starts once or starts again after stopping for a long time, the air in the fuel system should be exhausted with a hand pressure pump.

Startup:1After closing the safety in the control box, press the start button, press the button for 3 5s, if the start is not successful, you should wait for about 20s to start again. If the start is unsuccessful for many times, the start operation should be stopped, and the fault factors such as battery voltage or oil circuit should be eliminated before starting again;

2.Several oil pressures should be observed when starting, and if the oil pressure is not displayed or very low, it should be stopped immediately for inspection.