construction

key failure

Transformer tank

Oil leakage, Partial discharge, Deformation

Transformer winding

Insulation drops, Abnormal resistance, Discharge failure, Short circuit fault, Winding deformation, Overload

Transformer core

Multi-point grounding, Insulation drops, Core deformation, Over excitation, Oil blockage, Magnetic flux leakage

Transformer bushing

Oil leakage, Insulation damp, Porcelain sets flashover, Ageing, Partial discharge, Magnetic flux leakage, Insulation breakdown

Transformer

cooling system

Oil leakage, Oil flow circuit unreasonable, Heat pipe clogged, Cooler outage, Fan exception

Transformer tap-changer

Abnormal action, Partial discharge, Tap connection error, Oil leakage, Insulation drops, Mechanical damage