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低电压闭锁元件按躲过正常最低运行电压整定,一般可整定为母线额定运行电压的(   )倍。

发布时间:2026-01-24

A.0.2~0.3

B.0.3~0.4

C.0.4~0.5

D.0.6~0.7

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