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一起倒闸现象的分析

Analysis of the phenomenon of inverse switching
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摘要 通过对西站变电所倒闸操作中控制盘计量表计异常指示的分析,判断出电流经B3开关倒送到7#馈线的可能原因是A→2032→2042→高压母排2→B段母排有接续点接触不良或松动或母联隔开的铜铝过渡接线板处接触不良。经过实地测试,发现各接续点和铜铝过渡接线板连接牢固,接触电阻符合要求,现象产生的原因是6、7馈线末端并联的断路器在分位,6#馈线没有机车负荷,7 KX上有机车负荷引起的。 Though the analysis of the unusual instruction of the gauge table needle in a control panel during the operation of inverse switching in the transformer substation of the west station, the possible reason why the electric current pours from the B3 switch to the 7# feed line is that the contact is lost or not good in the splice position of the busbar arrangement or that the contact is not good in the tag board of the transition between copper and aluminum separated by the connection of the busbar arrangement during the A→2032→2042→highvoltage-busbar arrangement2→B section. By tests on the spot, it is found that the connection in each splice position and the tag board of the transition between copper and aluminum is reliable and it is also found that contact resistances conform to the requirement, The reason produced by the phenomenon is that a circuit breaker paralleled in the end of 6 and 7 feed lines is separating the position, the 6# feed line doesn't have locomotive load, and there is locomotive load in the 7KX.
作者 孙晓薇 杨星
出处 《继电器》 CSCD 北大核心 2008年第5期81-83,87,共4页 Relay
关键词 倒闸操作 表计指示异常 电流路径 母排接续点 试验测量 inverse switching operation unusual instruction of a table needle current path splice position of the busbar arrangement experimental test
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参考文献2

  • 1潘启敬.牵引供电系统继电保护[M].北京:中国铁道出版社,1996..
  • 2许继集团电气保护及自动化事业部.WKH-891型电铁微机保护装置说明[Z].2002.

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