What is a transformer

Transformer is a stationary motor, it applied the principle of electromagnetic induction, a voltage of electrical energy can be converted to another voltage power (typically AC). From electricity production, transmission and distribution ofelectricity to households, using a variety of transformers. First of all, from the power system is concerned,Industrial Electric Motor is the main device. We know that high-power electrical energy to transport to distant places to go, then a lower voltage that is appropriate to transmit a large current is impossible. This is because: one, a large current in power lines caused a large power loss; the other hand, a large current will also cause a larger voltage transmission lines on land, resulting in power did not sent out.

To this end, the transformer to the generator terminal voltage increases, the corresponding current transformer can reduce the function are: voltage transform; current transformation, impedance transformation; isolation; regulator (magnetic saturationtransformer); autotransformer ; high-voltage transformer (dry type and oil type), etc., commonly used in the transformer coreshapes are generally E and C-core, XED model, ED-type CD-based.

Transformer can be divided according to purpose: distribution transformers,Electric Motor, power transformers, sealed transformer, combined transformer, dry type transformers, single-phase transformers, furnace transformers, rectifiertransformers, reactors, transformers interference, lightning transformers, box-type variable electrical transformer testinghigh current transformer transformer angle excitation transformer.

The most basic type of transformer, including the two coils around a wire, and said to each other together with the inductivemethod. When an AC current (with a known frequency) flow in one group of coils, the coils in the other group will have the same frequency of the induced AC voltage, while the induced voltage depends on the two coils and the magnetic exchangecoupling chain level. Generally refers to the coil connected to AC power as "a coil" (Primary coil); and the voltage acrossthis coil is called "a voltage.". The induced voltage in the secondary coil may be greater or less than once a voltage is determined by the primary coil and secondary coil of the "turns ratio" of the decision. Therefore,Brushless motors divided into two:the transformer step-up and step-down transformer.