Transformer can change AC voltage, which is widely used in power, voltage transformation, current exchange, impedance transformation, etc. The transformer consists of primary coil, secondary coil and iron core. According to different ways, common transformers are also different. This paper briefly introduces some of them.
1. by phase number
It is divided into single-phase transformer and three-phase transformer, in which single-phase transformer is mainly used for up and down voltage of single-phase load; three-phase transformer is mainly used for up and down voltage of three-phase system.
2. Called cooling method
It can be divided into dry type transformer and oil immersed type transformer, in which dry type mainly depends on air convection natural cooling or increase fan cooling; while the main type of oil immersed cooling depends on medium, such as oil immersed cooling, oil immersed air cooling, oil immersed water cooling.
3. by using
Also known as power transformer, instrument transformer, test transformer and special transformer.
It can be seen that because of the different classification methods, or according to some type of use or cooling method, the transformer will be called different. But the purpose of transformer is very clear. It is mainly used to carry out voltage transformation and other devices. When selecting, you can choose to install according to your own needs.