Basic knowledge of diesel generator set, basic operating procedures of diesel generator set

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1. Preparation before starting. Before starting the engine every time, it is necessary to check whether the cooling water or antifreeze in the diesel engine water tank is satisfied, if it is missing, it must be filled. Pull out the oil ruler to see if the lubricating oil is missing, if it is missing, it should be added to the specified "static full" scale mark, and then carefully check whether the relevant components have hidden faults, and if the fault is found, it should be eliminated in time before starting.

2. It is strictly forbidden to start the diesel engine with load. Before starting the diesel engine, it should be noted that the output air switch of the generator must be turned off. After the diesel engine of the ordinary generator set starts, it will go through 3-5 minutes of idle operation (about 700 rpm), and the temperature is low in winter, and the idle operation time should be appropriately extended for a few minutes.

After the diesel engine starts, it is necessary to observe whether the oil pressure is normal and whether there is abnormal phenomena such as oil leakage and water leakage, (under normal circumstances, the oil pressure must be above) If any abnormality is found, it should be stopped immediately for maintenance. If there is no abnormal phenomenon, the speed of the diesel engine is increased to the rated speed of 1500 rpm, and the generator display frequency is 50Hz and the voltage is 400V, and the output air switch can be closed and put into use. The generator set is not allowed to run no-load for a long time.

Because of long-term no-load operation, the diesel fuel sprayed by the diesel engine injector cannot be completely combusted, resulting in carbon deposits, resulting in valve and piston ring leakage. If it is an automatic generator set, it does not need to run at idle speed, because the automatic unit is generally equipped with a water heater, so that the diesel engine cylinder block is always kept at about 45co, and the diesel engine can be powered normally within 8-15 seconds after starting.

3. Pay attention to the working status in operation. In the work of the generator set, there should be a special person on duty, and often pay attention to a series of faults that may occur, especially pay attention to the changes in important factors such as oil pressure, water temperature, oil temperature, voltage, frequency, etc. In addition, it should be noted that there is enough diesel, such as fuel interruption during operation, which objectively causes load shutdown, which may lead to damage to the generator excitation control system and related components.

Fourth, it is strictly forbidden to stop with load. Before each shutdown, the load must be cut off gradually, then the output air switch of the generator set must be turned off, and finally the diesel engine must be slowed down to idle for about 3-5 minutes before stopping.

There are four major precautions in the basic operation specifications of diesel generator sets, which are the preparation before starting, the precautions for starting the unit, the precautions for unit operation, and the precautions for unit shutdown. (For reference only: (Fujian Yanan diesel generator set:.)

4000-080-999) Ya Xiaonan will answer for you).

1. First of all, we should pay attention to the preparation before the start of the unit, each time before starting the machine, we must check whether the cooling water or antifreeze in the diesel engine water tank is satisfied, if it is missing, it should be filled, pull out the oil ruler to check whether the lubricating oil is missing, if it is missing, it should be added to the specified 'static full' scale line, and then carefully check whether there is a hidden danger of failure in the parts of the fish, and if the fault is found, it should be eliminated in time before it can be started.

2. The unit can not start the diesel engine with load, the diesel engine should pay attention to the output air switch of the generator before starting, the ordinary generator set diesel engine must go through 3-5 minutes of idle operation after starting, the temperature is low in winter, the idle operation time should be appropriately extended for a few minutes, after the diesel engine starts, it is necessary to observe whether the oil pressure is normal and whether there is oil leakage, water leakage and other abnormal phenomena, (under normal circumstances, the oil pressure must be above) if abnormal is found, it should be stopped immediately for maintenance, If there is no abnormal phenomenon, the diesel engine speed is increased to the rated speed of 1500 rpm, at this time the generator display frequency is 50Hz, the voltage is 400V, you can close the output air switch and put it into use, the generator set is not allowed to run without load for a long time, if it is an automatic generator set, it does not need to idle operation, because the automatic unit is generally equipped with a water heater, so that the diesel engine cylinder block is always maintained at about 45 degrees, and the diesel engine can be powered normally within 8-15 seconds after starting.

3. Pay attention to observe the working state in operation, the generator set should be on duty in the work, and often pay attention to observe a series of faults that may occur, especially pay attention to the changes in important factors such as oil pressure, water temperature, oil temperature, voltage, frequency, etc., in addition, it is necessary to pay attention to having enough diesel, such as fuel interruption in operation, objectively causing load stop, which may lead to damage to the generator excitation control system and related components.

4. Finally, it is strictly forbidden to stop with load, before each shutdown, the load must be cut off step by step, and then the output air switch of the generator set must be turned off, and finally the diesel engine will be slowed down to idle for 3-5 minutes before stopping.

1) Check each switch, the position of the knife switch is correct, and the interlock switch meets the requirements of the operation mode.

2) Check that the fuses are installed well and the power supply is normal.

3) Check that the voltage of the 24V battery is normal and the charger is running normally.

4) There is no oil leakage in the Yuchai generator set, the oil level of the diesel generator tank is normal, and the oil valve is open.

5) The diesel generator outlet control switch shall not be operated manually under any circumstances.

6) After each start and stop of the diesel generator, the self-start screen reset button will be reset once.

7) During the operation of the diesel generator, someone monitors the operation of the diesel generator on site and meets the specified requirements.

8) When the 400V factory bus loses power, if the diesel generator does not start itself, it is allowed to start manually once, but the starting time of each time shall not exceed 15 seconds.

9) After the 400V factory bus loses power and the diesel generator starts normally, if the power switch from the diesel generator to the security section is not closed, it should be snapped once after confirming that the working power supply is opened.

10) Diesel generator fire extinguishing equipment should be complete.