What function does the transformer use first

According to cooling mode: dry type (self cooling) Transformer, oil immersed (self cooling) transformer

Principle of transformer

Fluoride (evaporative cooling) transformers.

According to the dampproof way classification: open transformer, potted transformer, sealed transformer.

According to the structure of iron core or coil: core transformer (insert core, C-type core, ferrite core), shell type transformer (insert core, C-type core, ferrite core), ring type transformer, metal foil transformer.

According to the power supply phase number classification: single-phase transformer, three-phase transformer, multi-phase transformer.

Classification by use: power transformer, voltage regulating transformer, audio frequency transformer, intermediate frequency transformer, high frequency transformer and pulse transformer.

working frequency

The core loss of transformer is closely related to frequency, so it should be designed and used according to the use frequency, which is called working frequency.

Rated power

Under the specified frequency and voltage, the transformer can work for a long time without exceeding the output power of the specified temperature rise.

Rated voltage

It refers to the allowable voltage applied on the coil of transformer, which shall not be greater than the specified value during operation.

Voltage ratio

It refers to the ratio of primary voltage to secondary voltage of transformer, which is different from no-load voltage ratio and load voltage ratio.