| 新型小电流接地选线装置的研制 |
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| 引用本文： | 袁宇春,林志波,吴向军. 新型小电流接地选线装置的研制[J]. 西华大学学报(自然科学版), 2009, 28(2) |
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| 作者姓名： | 袁宇春 林志波 吴向军 |
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| 作者单位： | 西华大学电气信息学院,四川,成都,610039;南方电网超高压输电公司,广东,广州,510620;西南电力设计院,四川,成都,610021 |
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| 基金项目： | 西华大学重点学科重点试验室建设项目，西华大学人才引进项目 |
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| 摘 要： | 对于中性点不接地的系统,在电网发生单相接地故障后尽快选出故障线路,对于维持系统的正常运行非常重要.本文在大量的试验数据的基础上,对试验数据作了研究和理论分析,发现对于故障后各个线路的零序电流,在故障期间的一个确定的时刻,故障线路的零序电流和非故障线路的零序电流在相位上相差180度,并在此基础上研制了以故障选线为主要功能的中压供电系统综合自动监测装置.该装置经过现场运行,取得了很好效果.
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| 关 键 词： | 小电流接地系统 小电流接地选线 选线装置 |
A New Device for Fault Iine Selection in Small Current Grounding Networks |
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| YUAN Yu-chun,LIN Zhi-bo,WU Xiang-jun. A New Device for Fault Iine Selection in Small Current Grounding Networks[J]. Journal of Xihua University(Natural Science Edition), 2009, 28(2) |
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| Authors: | YUAN Yu-chun LIN Zhi-bo WU Xiang-jun |
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| Affiliation: | 1.School of Electrical and Information Engineering;Xihua University;Chengdu 610039;2.China South Power Grid Co.Ltd.;Guangzhou 510620;3.Southwest Electric Power Design Institute;Chengdu 610021 China |
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| Abstract: | For a small current grounding system,it is very important to find the fault line when a fault occurs in the system.In this paper,the authors analyze the test data,and find that there is a 180 degree difference between the phase angle of the zero sequence current of the fault line with the line without fault at a certain time during the fault.A new device for fault line selection in small current grounding networks is developed,and the site operations verify its stability,veracity and applicability. |
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| Keywords: | small current grounding fault line selection fault line select device |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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