Basic Knowledge of Transformers

The Purpose and Category of the Transformer

The transformer is an electrical component used to transform voltage, current or impedance. It is the main equipment that transfers power in the power system! When transmitting power at a long distance, the voltage sent by a transformer can be used to increase the voltage sent by the power station, which can reduce the loss during the power transmission process and facilitate the long -distance conveying power. Convenient for electric equipment and users!

There are many ways to classify the transformer. Depending on the number of power phase, it can be divided into single -phase transformers and three -phase transformers.

The Functional Characteristics of a Single -Phase Transformer

● Single -phase transformer is a primary winding transformer with a single -phase winding. The primary winding and secondary winding of the single -phase transformer are wrapped on the iron core. The primary winding is the AC voltage input terminal, and the secondary winding is the AC voltage output terminal. The output voltage of the secondary winding is proportional to the number of coils.

● Single -phase transformers can turn high -voltage power supply into single -phase low -voltage for various equipment. For example, it can change the AC 6600V high -voltage menstrual transformer to 220V low -voltage to power the lighting or other equipment.

● Single -phase transformers have the advantages of simple structure, small volume, low loss, etc., and are suitable for use in low -voltage distribution lines with less load (below 60Hz).

● Single -phase transformers are mostly used in rural transmission and distribution systems, as well as the power supply of some lighting or small motors. In addition, in many electronic and electrical equipment, it can also be used as a power transformer.

The Functional Characteristics of the Three -Phase Transformer

● Three -phase transformer is a transformer that is used more in power equipment. The three -phase transformer is actually combined from a single -phase transformer with the same capacity. The primary winding (high -voltage coil) is three -phase, and the secondary winding (low voltage coil) is also a three -phase.

● The three -phase transformer is mainly used for the boost or lower voltage in the three -phase power supply system. It is more commonly used to change the high voltage of thousands of volts to 380V low -voltage to provide power power supply for electricity equipment.

● Three -phase transformers have a wide range of applications, such as substation, industrial and mining enterprises, construction sites, emission irrigation equipment, post and telecommunications, textile railways, schools, hospitals, national defense, elevators, etc. In the wire.