residual voltage transformer

例句：

1. 1.The residual voltage transformer is used to measure the remaining voltage in a circuit after the mains supply has been disconnected.
   残余电压变换器用于测量主电源断开后电路中剩余的电压。
2. 2. The residual voltage transformer is essential for maintaining safe electrical conditions in industrial environments.
   残余电压变换器对于工业环境中保持安全电气条件至关重要。
3. 3. The residual voltage transformer helps to prevent overheating of electronic components during power outages.
   残余电压变换器有助于在停电期间防止电子组件过热。