如果现场电源失效，对反应堆冷却系统的控制是非常有限的。
If all AC power is lost, the options to cool the core are limited.
发电机现场电源电路中的保护装置应能瞬时获得全泵房负荷？
Protective devices in the on-site power source circuits at the generator shall allow instantaneous pick-up of the full pump room load.
核电站需要现场电源提供动力操作马达、阀门和各项控制系统的仪表，而且还为反应堆堆芯的冷却水系统提供电力。
Nuclear plants generally need ac power to operate the motors, valves and instruments that control the systems that provide cooling water to the radioactive core.
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