1. a relay actuated by a fall in electrical frequency
underfrequency 片语
片语
Underfrequency setting低
underfrequency rela欠频继电器
underfrequency pc card低于额定频率百分数卡
underfrequency relay低频继电器
underfrequency protection欠频保
underfrequency card频率过低卡
UF Underfrequency欠频
underfrequency 例句
英汉例句
underfrequency load shedding (ufls) is a widely accepted effective measure to repress further frequency drop. most of ufls schemes use pre specified steps based on measured frequency to shed load.