Power transformer mecanical vibration

[jadamesp]

I am looking information of the causes of power transformer vibration.

Thank in advance.

 

[electricuwe]

There are three main reasons for transformer vibration:

- Magnetostrictive forces in the core material
- Forces arising between the conductors carrying the current
- In an oil-cooled transformer magnetic flux returning through the tank can cause additional vibration if a three-phase three-leg transformer is loaded with a zero-sequence current