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介绍了新型矿用直流逆变电源ＺＢ５５０／２４ＶＷ的研制，分析了主电路特点及其功能，阐述了开关式逆变电源将代替可控硅式逆变电源的必然性。
The development of a new type of mining DC inverter ZB550 / 24VW is introduced. The characteristics and functions of the main circuit are analyzed. The necessity of using the switching inverter instead of the SCR is also discussed.