To warrant reliability of DC operation power electrical supply, all-round monitoring to parameter of storage battery operation is necessary.
为保证直流操作电源供电的可靠性，必须对蓄电池组运行参数进行全面的监测。
As backup power supply of the DC system, the residual capacity of battery effected safe operation of DC system directly when ac power failure occurs.
蓄电池作为直流系统交流停电时的后备电源，其剩余容量直接影响了直流系统的安全运行。
The DC operation power supply system is a kind of important equipment in substation.
直流操作电源系统是变电站中的重要设备。
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