单相供电技术是指线路上不同变电所供电的区段接触网电压相位相同，线路上无电分相环节的牵引供电方式。
... single-phase protection unit 单相保护组合 single-phase supply 单相供电 single-pole switch 单极开关掣 ...
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The electrified railway network is powered by single-phase supply. The three-phase motors in auxiliary system of the 8G type locomotive are operated by single-phase to three-phase with a starting capacitor.
由于电气化铁道采用单相交流供电,目前8G型电力机车辅助系统电机采用电容分相直接起动方式来实现单相供电时三相异步电机的起动,存在着起动电流大和起动转矩不足的问题,致使电机烧损严重。
参考来源 - 8G电力机车辅助系统改进的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
在铁道电气化牵引区段，牵引供电网采用单相工频交流电供电方式。
On the railway of electrization, power supply mode is requested to be the single-phase alternating current.
分析井下供电系统单相接地的危害，介绍几种常见的漏电保护方法。
This Paper analyses the harm of single-phase earthing in electricity supply system of mine and introduces several type of common ways of leakage protection.
从理论上分析了小型电站供电线路单相断线故障对发电机的影响，讨论了单相断线时发电机电流的计算方法并附有算倒。
This paper analyses the effects of the single-phase break fault of the supply line on the generators at the small-sized hydropower station.
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