Power distribution operation 16 transformer knowledge

In the operation of transformer, transformer is essential, familiar with and master the basic common sense of transformer is very necessary, transformer basic knowledge reserve is a necessary skill for every power person!

1. What is a transformer?

In the AC circuit, the device that increases or decreases the voltage is called the transformer, and the transformer can convert any value of voltage into the voltage value with the same frequency that we need to meet the transmission, distribution and use of electric energy.

For example, the electricity emitted by the power plant, the voltage level is low, and the voltage must be increased in order to be transmitted to the distant power area, and the power area must be reduced to the applicable voltage level to supply the power equipment and daily use of electrical equipment.

2, how does the transformer change the voltage?

Transformers are made according to electromagnetic induction. It consists of an iron core made of silicon steel sheets (or silicon steel sheets) and two groups of coils wound on the iron core, and the iron core and the coils are insulated from each other without any electrical connection.

The coil connected to the transformer and the power supply side is called the primary coil (or the original side), and the coil connected to the transformer and the electrical equipment is called the secondary coil (or the secondary side). When the primary coil of the transformer is connected to the AC power supply, a changing magnetic field line is created in the core.