吉瓦纳电气科技有限公司

电力系统中各种电压的变电所及输配电线路组成的整体，称为电力网。它包含变电、输电、配电三个单元。电力网的任务是输送与分配电能，改变电压。The overall system composed of various voltage substations and transmission and distribution lines in the power system is called the power grid. It consists of three units: power transformation, power transmission, and power distribution. The task of the power grid is to transmit and distribute electrical energy and change voltages.