The mode of speed control for mining tram includes three types of series resistances. Dc chopper and AC converter.

矿用电机车的速度控制方式包括串电阻式、直流斩波式和交流变频式三种。

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The mode of speed control for mining tram includes three types of series resistances. Dc chopper and AC converter.

矿用电机车的速度控制方式包括串电阻式、直流斩波式和交流变频式三种。

youdao