Why is output voltage of generator unbalanced

There are three main reasons for unbalanced output voltage of diesel generator set

1. The three-phase load is unbalanced.

2. There is a slight short circuit in the generator winding.

3. Generator manufacturing defects (unequal turns of three-phase winding).

At this time, the following situations may occur:

1. The output power of the generator set is decreased, which can not meet the power requirements of users

2. The three-phase voltage asymmetry makes the neutral point potential of generator set shift

3. If the neutral current is too large, the operating temperature of distribution transformer will rise, and the transformer will be burned out in serious cases

4. The voltage of some phases is high and that of others is decreased

5. The generator is burnt out, affecting the normal power supply

Therefore, we must pay attention to the three-phase imbalance in the use of diesel generator set. If the output power cannot be changed, the wiring mode should be replaced to prevent damage to the generator sets.

What's wrong with the output voltage imbalance of the above generator set? The information is sorted out and released by the diesel generator manufacturer Starlight Power. Hope it is helpful to you.

If you are interested in electric diesel generators or have plan to order, welcome to contact us by email sales@dieselgeneratortech.com. We also a manufacturer of diesel generators in Jiangsu China, power range is from 25kva to 3125kva, covering Cummins, Volvo, Perkins, Deutz, Yuchai, Shangchai, Ricardo, Weichai etc.