Diesel Generator Tech

What causes generator voltage transformer failure? 1.Winding turn to turn short circuit Fault phenomenon: During operation, the temperature rises, there is discharge sound, the high-voltage fuse is blown, the secondary side voltmeter indication is unstable. Reason: System over-voltage, long-term overload operation, aging insulation, poor manufacturing process. 2.Insulation damage between iron chips Fault phenomenon: temperature rise during operation. Reason: Poor insulation between iron chips; Poor service environment; Long term operation at high temperature promotes aging of insulation between iron chips. 3.Poor contact between grounding lug and iron core of diesel engine Fault phenomenon: There is discharge sound between iron core and oil tank during operation. Reason: The grounding plate is not inserted tightly, and the mounting screw is not tightened. 4.Core loosening Fault phenomenon: There is abnormal vibration or noise during ope...