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本文论述了中性线在铁路电力供电系统中的重要性及截面选择不当造成的影响,并且分析了谐波电流在中性线上不能抵消而是叠加变大的道理,强调了中性线截面对确保安全供电的意义及中性线截面的选择。
This paper discusses the importance of the neutral line in the railway electric power supply system and the influence of improper cross-section selection. It also analyzes the reason that the harmonic current can not be offset but increases and increases in the neutral line, The significance of ensuring safe power supply and the choice of neutral cross section.