News & Information

Transformers potential failure sources can be summerized as below main causes. Especially #3, 4, 5 with high criticality.

1. Bushings

   Insulation deterioration

   Short circuit

   Mechanical damage

2. On-Load Tap Changer (OLTc)
   

   Internal Arc

   Mechanical damage

3. Windings

   Stress due to Internal failures

   Mechanical damage
   

4. Core

   Improper insulation
   

   Excessive Heating

   Loose laminations/stacking

5. Oil

   Oxidation of the oil

   Thermal decomposition

   Moisture contamination