A.機(jī)組頻率 B.電網(wǎng)頻率 C.磁極對(duì)數(shù) D.機(jī)組負(fù)荷
A.Mt>Mg B.Mt<Mg C.Mt=Mg D.Mg=0
A.0.4 B.0.45 C.0.5 D.0.55