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前言随着通信事业的发展,通信设备容量增大,方式增多,各种通信设备要求供给的电源电压种类不一,如果使用蓄电池以保证对通信设备的不间断供电,势必使电池组的种类繁杂,投资增多,维护麻烦。因此,现在多使用逆变器,用某一电压的蓄电池组,将直流电源转变为与市电同电压同频率的正弦交流电源,送至各种通信设备,以代替市电。这样,电池组种类单一,投资少,维护方便。
Preface With the development of communication, the capacity of communication equipment increases and the number of ways increases. Various types of communication equipment require different types of power supply voltages. If batteries are used to ensure uninterrupted power supply to communication equipment, the variety of battery packs is bound to be complicated , Increased investment, maintain trouble. Therefore, the inverter is now used more, with a certain voltage of the battery pack, the DC power into the same frequency with the mains AC power sine, sent to a variety of communications equipment to replace the mains. In this way, a single battery pack, less investment, easy maintenance.