Causes of Transformer Failure

Causes of Transformer Failure:

 Causes of Transformer Failure

➢ Over Heating:

1. Over load

2. Poor cooling

3. Core heating due to eddy current.

➢ Mechanical forces:

1. Mechanical force due flow of through fault currents.(3Ф, Ф-Ф, 1Ф)

1. Transportation

2. Earthquake, storm etc.

➢ Insulation Failure:

3. Aging

4. Lack of maintenance

5. Manufacturing defect.