Fault A fault is any unintended flow of current outside its intended circuit path in an electrical system.
故障 故障是指在电力系统中任何电流跑出正常电路以外的情况。

Frequency Frequency is the number of complete cycles per unit of time of any periodically varying quantity, such as alternating voltage or current. It is usually expressed as (Hz) Hertz or CPS (cycles per second).
频率 频率是指周期性变化的事物（如交流电压和电流等）在单位时间内完成的周期数，常用单位是赫兹(Hz)或周期/秒(CPS)。

Frequency Adjust Potentiometer A frequency adjust potentiometer is used to manually bring the frequency (speed) of the incoming set to that of the bus for synchronizing purposes. When the generator set is paralleled, operation of this potentiometer will adjust the kW load assumed by the generator set.
频率调整电位器 频率调整电位器是用于手动调整输入机组的频率使之与母排同步。当机组并联后，电位器可以调整为机组输出功率值。

Frequency Regulation Frequency regulation is a measure that states the difference between no-load and full-load frequency as a percentage of full-load frequency.
频率调整率 频率调整率是指空载和满载之间频率的差别与满载频率的百分比。