TV differential relay

例句：

1. 1. The TV differential relay is used to detect and control the flow of electricity in a power system.
   电视差动继电器用于检测和控制电力系统中电流的流动。
2. 2. The TV differential relay is an important component of the electrical protection system.
   电视差动继电器是电气保护系统的重要组成部分。
3. 3. The TV differential relay is used to detect and prevent overloads in the power system.
   电视差动继电器用于检测和防止电力系统中的过载。