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中性点接地方式对配电线路可靠性影响的区间分析

Interval Analysis about Influence on Reliability of Power Distribution Lines With Various Grounded Neutrals

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【Author】 CAO Zhen-chong1,HE Jian-sheng2,YANG Xue-chang3,ZHI Xiao4,WU Zhen-sheng5(1.Guangxi Electric Power Industry Investigation Design and Research Institute,Nanning China 530022;2.Qinzhou Power Supply Bureau,Qinzhou China 535000;3.Electrical Engineering Department of Tsinghua University,Beijing 100084 China;4.Qinghai Electric Power Test and Research Institute,Xining China 810008;5.Electrical Engineering Department of Beijing Communication University,Beijing China 100044)

【机构】广西电力勘察设计研究院；钦州供电局；清华大学电机系；青海电力试验研究所；北京交通大学电气工程学院广西南宁530022；广西钦州535000；北京100084；青海西宁810008；北京100044；

【摘要】中性点接地方式对配电系统线路故障跳闸率影响很大,从中性点接地方式角度分析了配电系统线路故障率相同的情况下故障跳闸率的变化情况,比较了配电系统中性点不接地、经消弧线圈接地、经小电阻接地和经可变电抗接地4种情况下线路故障跳闸率的变化情况。并通过算例用基于相对优势度的区间分析方法比较了4种中性点接地方式的优劣。更多还原

【Abstract】 Various grounded neutrals may greatly affect the fault tripping rate of power distribution lines.The paper analyses the difference on tripping rate under the same fault conditions according to the following grounding neutrals including ungrounded,grounded through anti-arc coil,grounded through small resistance and grounding through variable reactance.It also compares them by calculation with interval analysis based on relative superiority.更多还原

【关键词】配电系统；可靠性；中性点；区间分析；
【Key words】 power distribution network； reliability； neutral point； interval analysis；

【文献出处】广西电力 ,Guangxi Electric Power , 编辑部邮箱 ,2007年05期

【分类号】TM862
【被引频次】15
【下载频次】119

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