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48. 正常工作下,三相感應電動機負載與轉差率的關係為何?(A)負載增加,轉差率變大 (B)負載增加,轉差率變小(C)負載減小,轉差率變大 (D)負載變動,不影響轉差率
問題詳情
48. 正常工作下,三相感應電動機負載與轉差率的關係為何?
(A)負載增加,轉差率變大
(B)負載增加,轉差率變小
(C)負載減小,轉差率變大
(D)負載變動,不影響轉差率
參考答案
上一篇 :
47. 有一台20KW、200V之直流外激式發電機,已知電樞繞組電阻為0.1Ω,不考慮電樞反應與電刷壓降,則本機之應電勢為何?(A) 200V (B) 210V(C) 220V (D) 230V
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