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 |