1. Breakdown fault of transformer insulation part

The main analysis reasons that affect the breakdown of insulation parts of transformers come from three aspects of social development: moisture, foreign objects, and lightning strikes. When there is water in the transformer bushings, oil conservators, and explosion-proof tubes, the working transformer will be reduced. The strength of the insulator to withstand breakdown can cause a local short circuit; when the transformer company internally controls residual conductors, dust, impurities and other foreign matter, different discharges or serious wear and tear problems will occur under the company's normal voltage, thereby causing the insulator to breakdown. ; When the transformer is suddenly attacked by lightning, the large current change will cause breakdown between the weak insulation parts of the transformer, causing a short circuit in the system.

2. Transformer overheating fault

Due to abnormal currents, transformer overheating is usually caused by eddy current circulation, increased resistance to transformer overheating, and other reasons for heat dissipation obstruction. If overheating cannot effectively cope with normal operation and will affect the performance of the transformer, the sustainable development of the power network will Safety issues arise, accompanied by the occurrence of transformer fires.

3. Transformer short circuit accident

Transformers are affected by device aging, vibration, and drastic changes in the environment during operation. Enterprises will have different short-circuit accidents in single grounding, two-phase grounding, two-phase, and three-phase. Among them, the most serious type is the short circuit at the outlet. This It will cause serious social impact on the safety of transformers. Improper or untimely disposal methods will easily cause some major power grid information security production accidents.