单项选择题
根据我国《钢质海船入级与建造规范》规定,同步发电机逆功率保护的起动值及延时时间为()。
A.5%~10%,1~5s
B.5%~15%,1~5s
C.8%~10%,1~10s
D.8%~15%,1~10s
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单项选择题
A.5%~10%,1~5s
B.5%~15%,1~5s
C.8%~10%,1~10s
D.8%~15%,1~10s
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