Tata Power said unit-1 of Maithon Power Ltd, a subsidiary of the company with Damodar Valley Corporation, tripped on Sunday evening due to failure of the ‘Y-Phase GT bushing’. The porcelain portion ruptured due to the fault and the oil of the bushing caught fire.
The mulsifier system (automatic water sprinkler) supported by the plant’s fire control team put out the fire. There was no oil spill from the transformer.
The unit has been shut down. There have been no casualties or injuries to personnel. The damage assessment and repair will be carried out by BHEL, Tata Power said in a communication to the stock exchange.