The DC electric machine rotor comprehensive testing instrument solves problems of single function of electric machine rotor testing instrument and inconvenient operation in the prior art.

它解决了现有技术存在的电机转子检测仪功能单一，使用不便。

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Though analyzing the disadvantages of the brush motor in ZD6 type Electric Switch Machine, this paper introduces the replacement of brush motor by brushless DC motor and specific reliability measures.

分析了ZD6型电动转辙机有刷电机的缺点，介绍了无刷直流电机取代有刷电机的方案及可靠性措施。

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DC high voltage (or DC leakage current) test is an effective method of technical diagnosis of electric machine.

直流高电压(或称直流泄漏电流)试验，是一种行之有效的电机技术诊断方法。

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