a)Overheating of coil

Overheating of coil

1)Over voltage

Remedy: Check & correct terminal voltage/replace with higher voltage coil

2)Under voltage failure of magnet to seal in

Remedy: Correct terminal voltage / replace with lower voltage coil or change transformer tap

3)Inter turn short circuit of Coils (Coil getting excessively hot turned brown in colour)


Remedy: Replace coils


4) Dirt or rust on pole faces increasing the air gap
Remedy : Clean pole faces. Don’t use grease solvents or sharp objects while cleaning


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