A.受端電壓與送端電壓相量的幾何差; B.受端電壓與送端電壓的代數(shù)差; C.受端電壓與網(wǎng)絡(luò)標(biāo)稱(chēng)電壓的代數(shù)差; D.送端電壓與網(wǎng)絡(luò)標(biāo)稱(chēng)電壓的代數(shù)差。
A.20min B.15min C.lOmin D.5min
A.3%,1.2%,2.4% B.3%,2.4%,1.2% C.5%,4%,2% D.1%,1.2%,2.4%