How to Prevent 250kva Diesel Genset Burning Down

Diesel generator set is a power supply device that uses a diesel engine as the prime mover to drive a synchronous generator to generate electricity. It is a power generation device with quick start, convenient operation and maintenance, low investment, and strong adaptability to the environment.

In this article, Starlight will guide generator customer to learn how to prevent diesel generator set from burning down?

Keep diesel generator set clean. During the operation of the generating unit, if dust, water stains and other debris enter the interior, a short-circuit medium will be formed, which will damage the insulation layer of the wire, causing a short circuit between turns, and the temperature will rise to burn down the diesel genset. Therefore, dust, water stains and other sundries should be prevented from entering the generator set, and the outside of the diesel generator set should be cleaned frequently to ensure good heat dissipation of the genset.

Observe the diesel generator set for vibration, noise and abnormal odor. In the operation of diesel generator sets, especially high-power gen sets, it is necessary to check whether the anchor bolts, the end cover of the generating set, and bearing glands are loose, and whether the grounding device is reliable. If it is found that the vibration of the diesel generator set is intensified, the noise is increased and the odor is generated, it is necessary to stop as soon as possible to find out the cause and eliminate the fault.

Keep the working current of the diesel genset in a stable state. Due to excessive load, low voltage or mechanical jam of the generator set will cause overload operation of the diesel power generating set. Therefore, in the operation of the generator, it is necessary to pay attention to checking whether the transmission is flexible and reliable, whether the concentricity of the coupling is standard, the flexibility of the gear transmission, etc. If any stuck phenomenon is found, it is necessary to stop the machine immediately and eliminate the fault before running.

Regularly inspect and repair the control equipment of the diesel generator set to ensure its normal operation. The technical status of the diesel generating unit control equipment plays a decisive role in the normal start of the generator set. Therefore, the control equipment of the power generating set should be located in a dry, ventilated and easy to operate position, and regularly dust. Frequently check whether the contactor contacts, coil core, wiring screws, etc. are reliable, and the mechanical parts are flexible, so as to maintain a good technical state, thus ensuring that the diesel genset works smoothly without being burned.

Always check whether the temperature and temperature rise of the power generator set are too high in operation. It is necessary to check whether the bearing of the diesel generator set is overheating and lack of oil. If the temperature rise near the bearing is found to be too high, it should be stopped immediately for inspection. Whether there is crack, scratch or damage on the rolling body and the raceway surface of the bearing, whether the bearing clearance is excessively shaken, and whether the inner ring rotates on the shaft and so on. If the above phenomenon occurs, the bearing must be renewed.

Check whether the three-phase current of the diesel generator set is balanced. For three-phase asynchronous diesel generator sets, the difference between the average value of any one-phase current and the other two-phase current shall not exceed 10%, so as to ensure the safe operation of the generator set. If it exceeds, it indicates that the genset is faulty. It should find out the cause and eliminate the fault before running.

Note that the above operation can not only improve the performance of the generating set, but also extend the life of the unit. Starlight is a professional manufacturer of diesel generator sets, which can produce various types of generator sets according to customer needs. Brands include Cummins, Perkins, Volvo, Deutz, Ricardo, Shangchai, Weichai and Yuchai.