How to solve the noise of transformer

If there is noise in the transformer, we must first determine whether it is the electromagnetic sound of the transformer. If, this is normal. If not, you must stop to repair it.

There are two types:

1. Is the transformer short of oil? If there is a shortage of oil, please replenish it.

2. The fixture of the transformer body is loose. It is necessary to pull out the iron core and tighten the fixture. Either the transformer has been used for a long time and will produce noise.