A.轉(zhuǎn)子繞組串電阻 B.轉(zhuǎn)子繞組串電感 C.定子繞組串電阻 D.定子繞組串電容
A.轉(zhuǎn)子繞組逐級切除啟動電阻 B.頻敏電阻器啟動法 C.減壓啟動法 D.自耦變壓器減壓啟動
A.減小啟動電流 B.減小啟動轉(zhuǎn)矩 C.增大啟動轉(zhuǎn)矩 D.增大啟動電流