What are the parts of China Grid?
Publisher: Administrator Date:2019-12-25
It contains three units of power transformation, transmission and distribution. The task of the power grid is to transmit and distribute electrical energy and change the voltage. The general power grid can be divided into transmission grids, secondary transmission grids, high-voltage distribution networks, and low-voltage distribution networks.
The transmission grid is generally composed of main power lines with a voltage of more than 220kV, which connects large power plants, large-capacity users and neighboring sub-power networks. The voltage of the secondary transmission grid is generally 110-220kV. It is connected to the transmission grid and connected to the high-voltage distribution network. It is a regional network that connects regional power plants and large users.