rajakumar1985

 Profile Answers by rajakumar1985 Questions by rajakumar1985

• Aug 10th, 2009

 

The sound in the transformer is due to improper insulation and air gap between core & winding

shravan.rawal

 Profile Answers by shravan.rawal 

• Sep 2nd, 2009

 

Because of the airgaps between stampings of the core.

nikhilsharma2009

 Profile Answers by nikhilsharma2009 

• Sep 15th, 2009

 

Transformer noise is caused by the phenomenon magnetostriction. When a piece of any magnetic sheet is placed in the magnetic field it gets magnetised and elongate. But when the magnetic field is removed it is again comes to its original shape and because of this elongating and again coming back to shape produces noise which in known as transformer noise this phenomenon occurs in the core of a transformer which produces noise.