How to magnetise a brushed diesel generator set

Writer：SHILIDER Pubdate： 2023-04-27 16:04:01Update： 2023-04-27 16:04:01

SHILIDER Shilider Technical Engineer

GET QUOTE

The need to magnetise a generator set usually occurs in the case of a brush motor, the full name of the brush motor is STC phase reexcitation generator, which refers to the rear part of the generator set driven by the crankshaft part of the motor, mostly occurs in small power open frame diesel generator sets.

If the generator is left idle for too long or is shut down with a load, the generator is demagnetised and no current is formed in the coil without a magnetic field, so no electricity is generated.

This is the difference between a brush motor and a brushless motor. Brushless motors in gensets are self-excited, so there is no need to worry about demagnetisation.

How to magnetise a brushed diesel generator set

The steps required to magnetise a brushed generator set usually involve the following operations:

1. Open the generator shield, check the carbon brush and copper ring contact when good, new generator sets usually will not appear this situation, because the diesel generator set manufacturers will be in the factory before the load test.

2. Prepare a 12V battery, use the wire to distinguish between the positive and negative terminals of the battery and make a good distinction.

3. Start the diesel generator

4. Touch the positive and negative poles of the 12v battery to the copper ring at the same time, if it is touching a large spark, it needs to be adjusted and touched again, if the spark level is less than just now or no spark, then it proves that it has been magnetized, then you need to observe the voltage of the meter when there is data, display data to prove that it can already be normal power generation, it should be noted that in the process of magnetization link does not need to adjust the throttle very high It is important to note that the throttle should not be set very high during the magnetisation process, as long as the instrument voltage is displayed.

If the problem has not been solved or in the three package period can be directly contact the manufacturer, arrange after-sales personnel to deal with, a way you need to directly replace the carbon brush can, usually we SHILIDE diesel generator manufacturers will come with 1-2 pairs of, in the replacement needs to pay attention to the gap between.