你可能感兴趣的试题
±0. 1, ±0. 2 ±0. 2, ±0. 5 ±0. 1, ±0. 5 ±0. 5, ±0. 1
50±0.1 50±0.2 50±0.3 50±0.4
±0.1,±0.2 ±0.2,±0.5 ±0.1,±0.5 ±0.5,±0.1
±0.2Hz ±0.3Hz ±0.4Hz ±0.5Hz
±0.033Hz ±0.05Hz ±0.10Hz ±0.20Hz
±0.5Hz ±0.3Hz ±0.2Hz ±0.1Hz
±0.05Hz ±0.10Hz ±0.20Hz ±0.50Hz
±0.05Hz ±0.1Hz ±0.2Hz ±0.5Hz
国家规定电力系统标准频率为50HZ 对容量在3000MW及以上的系统,频率允许偏差为50±0.2HZ 容量在3000MW以下的系统,频率允许偏差为50±0.5HZ 国家规定电力系统标准频率为60HZ
±0.1,±0.2 ±0.2,±0.5 ±0.1,±0.5 ±0.5,±0.1
±0.2Hz ±0.4Hz ±0.3Hz ±0.5Hz
±1.0Hz ±0.5Hz ±0.2Hz ±0.1Hz