voltage behind transient reactance of a synchronous generator

例句：

1. 1. The voltage of the power grid is critical for maintaining stability.
   电网的电压对于保持稳定性至关重要。
2. 2. The voltage regulator controls the flow of electricity to prevent overloads.
   电压调节器控制电力流动以防止过载。
3. 3. Voltage drop occurs when current passes through a resistor.
   当电流通过电阻时会发生电压降。