Knowledge

In order to prevent unnecessary losses caused by various types of faults and abnormal operation of the transformer and ensure the safe and continuous

(1) Overcurrent caused by external phase-to-phase and ground short circuits; (2) Neutral point overvoltage; (3) Overload caused by exceeding the rated

Transformer faults can be divided into internal and external faults. Internal faults of transformers refer to various faults that occur inside the tra

(1) Normal operation mode: Operation at or below rated parameters, long-term operation is allowed; (2) Normal overload operation mode: Operation when

1. Iron core The iron core not only constitutes the magnetic circuit of the transformer, but also serves as the mechanical skeleton of the transformer

The main reasons for the light gas protection of transformers in operation are as follows: (1) There is a slight fault inside the transformer, such as

Where do transformer failures usually occur? Compared with other electrical equipment, transformers rarely fail because they do not have rotating part

Under normal daily operation, transformers are generally maintenance-free. After running for a period of time, it is necessary to do an inspection to

The main reasons for the light gas protection of transformers in operation are as follows: (1) There is a slight fault inside the transformer, such as

Prevent the transformer from overloading :If the transformer is overloaded for a long time, the coil will heat up, the insulation will gradually age,

Transformer overload requirements It is normal for transformers to be overloaded. After all, if an accident occurs, ensuring uninterrupted power suppl

1. Allowable temperature Take dry-type transformer as an example, the allowable temperature should not exceed 110 degrees, and the maximum should not