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.
济南发光字失效一是来源于电源和驱动的失效，二是来源于LED器件自身的失效。
Ji 'nan luminous word failure comes from the failure of power supply and driver, and the two comes from the failure of LED devices.
可以对温度控制装置进行人工设置，可根据设定的温度自动开关电源。本款电热水器还在工厂就预先安装了能够在温度控制装置失效的情况下切断全部电源的装置。
The temperature limiting device is of the manual reset, trip-free type and has been factory installed to interrupt all ungrounded power supply conductors in the event of thermostat failure.
蓄电池作为直流系统交流停电时的后备电源，其非正常失效严重影响了直流系统的安全运行。
The abnormal failure of battery which works as the backup power supply for DC system when ac power failure occurs, will affect the safe operations of DC system seriously.
在电源恢复，该系统计算失效时间停电，决定在今后适当的烹调过程。
After power resumption, this system calculates the lapsed time of power failure to decide the next appropriate cooking process.
分析了兰州燃气输气管道外加电源阴极保护失效的原因，提出了具体的改造处理措施。
The reasons for invalid cathodic protection by rectifier in gas transmission pipeline in Lanzhou City are analyzed, and the concrete reconstruction treatment measures are put forward.
对于控制装置故障，主要表现为电源缺相，而导致电源缺相的子事件主要有：可控硅失效、可控硅触发电路失效、三相电源开关失效、电感线圈失效；
One is power failure, mainly on AC phase-loss consisting of SCR failure, the failure of SCR's trigger circuit , there phases AC switches'failure and the failure of CRDM coil;
对于控制装置故障，主要表现为电源缺相，而导致电源缺相的子事件主要有：可控硅失效、可控硅触发电路失效、三相电源开关失效、电感线圈失效；
One is power failure, mainly on AC phase-loss consisting of SCR failure, the failure of SCR's trigger circuit , there phases AC switches'failure and the failure of CRDM coil;
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