跳频/跳时
frequency hopping time hopping
fh/th
跳频频率合成器
frequency hopping synthesizer
差频过程
different frequency generation
单相重合闸过电压
single-phase reclose overvoltage
低频过流保护
low-frequency over-current protection
overcurrent with protection low frequency
工频过电流
Over-current at Power Frequency
工频过电压
power frequency overvoltage
power frequency over-voltage
working frequency over-voltage
frequency overvoltage
power frequency over voltage
power frequency over- voltage
power-frequency overvoltage
fundamental frequency overvoltage
temporary overvoltage
power frequency overvolteag
工频过电压保护
power frequency overvoltage
工频过电压耐受时间
power frequency over-voltage withstanding time