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三相笼式异步电动机采用热继电器作为过载保护时,热元件的整定电流为电动机额定电流的:()A.1倍B.1
三相笼式异步电动机采用热继电器作为过载保护时,热元件的整定电流为电动机额定电流的:()
A.1倍
B.1.5~2.5倍
C.1~1.5倍
D.1.3~1.8倍
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三相笼式异步电动机采用热继电器作为过载保护时,热元件的整定电流为电动机额定电流的:()
A.1倍
B.1.5~2.5倍
C.1~1.5倍
D.1.3~1.8倍
A.0.95~1.05
B.0.85~0.95
C.1.05~1.15
D.1.15~1.50
A.0.95~1.05
B.0.85~0.95
C.1.05~1.15
D.1.15~1.50
A.0.95~1.05
B.1.05~1.15
C.1.15~1.50
D.0.85~0.95