Fault 1: the coil has turn to turn, interlayer or inter segment short circuit.

Fault causes: mechanical damage to the insulation; overvoltage caused breakdown; wire insulation aging and other coils have inter-turn, inter-layer or inter-segment short circuit.

Troubleshooting: inform professional manufacturers to repair or replace new transformers.

Fault two: Transformer automatic trip.

Cause of failure: internal fault, overload or external short circuit.

Troubleshooting: inform professional manufacturers to repair or replace new transformers.

Fault three: Transformer ignition.

The cause of the fault is serious internal short-circuit, excessive current and serious insulation damage.

Troubleshooting: inform professional manufacturers to repair or replace new transformers.

Fault four: 1, 2 coil or coil insulation resistance to ground drop.

Fault causes: internal moisture or moisture, line or Yin line has local access, oil medium loss caused by excessive high angle.

Troubleshooting: inform the professional manufacturer for maintenance.