Classification of transformers installed in explosion-proof distribution box

 Transformer is an electrical equipment that converts the ac voltage of a certain value of explosion-proof distribution box into another or more than one different value of ac voltage with the same frequency by using the principle of electromagnetic induction. It can be divided into power transformer and special transformer.

Power transformer is one of the key equipment in power system. According to statistics, in the power system 1 kw generator power should be equipped with 5-8 kVA transformer capacity. Thus, its are high, has the branch of single-phase and three-phase power transformer, from several kVA to hundreds of thousands of kVA capacity. According to its function can be divided into the step-up transformer, step-down transformer and distribution transformer, etc.

In the explosion-proof power distribution box for transmission and distribution power system of electric power transformer. Transformer are collectively referred to as a voltage will be transformed into another kind of voltage transformer, each phase has two coils, one for a coil (also called the original winding), another for the secondary coil (also known as deputy winding), and this is called double winding transformer. From one voltage to another two kinds of voltage transformer, each phase has three coil, one for a coil, the other two as the secondary coil, this is called the three winding transformer. There is a kind of the primary coil and secondary coil merged into a coil of the transformer, called autotransformer.