In the paper, an electrical power system of base station is introduced in detail, including AC power supply system, DC power supply system and earthing system.
文中介绍了通信基站的电源系统，包括交流供电系统、直流供电系统和接地系统，论述了等电位在基站建设中的重要性。
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.
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。
Based on the introduction of components and principle of work of frequency modulation system of constant frequency AC power supply, math model of frequency modulation system is established.
在介绍某型恒频交流电源频率调节系统的组成和工作原理的基础上，建立频率调节系统的数学模型。
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 system consists of the AC input stage, single phase PFC, main inverter, output low-pass filter, auxiliary power supply, and load current sharing circuit, etc.
整个电源由输入电路、功率因数校正器、主逆变器、输出滤波电路、辅助电源、均流电路等部分组成。
The system consists of the AC input stage, single phase PFC, main inverter, output low-pass filter, auxiliary power supply, and load current sharing circuit, etc.
整个电源由输入电路、功率因数校正器、主逆变器、输出滤波电路、辅助电源、均流电路等部分组成。
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