当BAT供电时,以下哪个继电器断开?
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BAT BUS ALT (.K1)
STBY DC ALTN RELAY (K3)
STBY NORMAL (K5)
SW HOT BAT BUS RELAY (K8)
参考答案:
BAT BUS ALT (.K1)
STBY DC ALTN RELAY (K3)
STBY NORMAL (K5)
SW HOT BAT BUS RELAY (K8)
参考答案: