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[1]?#24405;?#23792;,胡上茂,蔡汉生,等.直流深井接地极接地电阻的人工布线测量[J].高压电器,2019,55(05):69-74.[doi:DOI:10.13296/j.1001-1609.hva.2019.05.011]
 CHEN Jiafeng,HU Shangmao,CAI Hansheng,et al.Manual Wiring Measurement of DC Deep Well Grounding Resistance[J].High Voltage Apparatus,2019,55(05):69-74.[doi:DOI:10.13296/j.1001-1609.hva.2019.05.011]
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直流深井接地极接地电阻的人工布线测量()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期数:
2019年05期
?#38472;?
69-74
栏目:
高压设备试验和现场测试技术
出版日期:
2019-05-20

文章信息/Info

Title:
Manual Wiring Measurement of DC Deep Well Grounding Resistance
作者:
?#24405;?#23792;1 胡上茂2 蔡汉生2 李少东1 贾磊2 刘刚2 鲁海亮1
(1. 武汉大学电气工程学?#28023;?#27494;汉430072;2. 南方电网科学研究院直流输电技术国家重点实验室,广州510663)
Author(s):
CHEN Jiafeng1HU Shangmao2CAI Hansheng2LI Shaodong1JIA Lei2 LIU Gang2LU Hailiang1
(1. School of Electrical Engineering,Wuhan University,Wuhan 430072,China;2. State Key Laboratory of HVDC,Electric Power Research Institute,CSG,Guangzhou 510663,China)
关键词:
直流深井接地极接地电阻测量人工布线地表电位分布补偿法
Keywords:
DC deep well grounding electrodemeasurement of grounding resistancemanual wiringsurface po? tential distributioncompensation method
DOI:
DOI:10.13296/j.1001-1609.hva.2019.05.011
摘要:
深井接地极因占地面积小,选址容易的优点,具有很高的工程实用价值。由于单根深井接地极最大对 角线距离不到1 m,明显不宜直接采用规程推荐的5倍对角线距离人工布线测量接地电阻。为此,文中建立 了直流深井接地极模型,仿真计算了其接地电阻和地表电位分布,基于之提出了电流极距离要求;建立了深 井接地极注流、电流极回流的模型,研究了接地电阻测量过程中深井接地极和电流极共同作用下的地表电 位分布规律;结合深井接地极接地电阻的仿真计算值,分析获得了电压极的布置要求。改变电流极和电压 极的位置,研究了测量误差与布线距离之间的关系,提出了深井接地极接地电阻测量的电流极和电压极布 置方案。采用研究获得的方案对深井接地极接地电阻进行了实测,验证了方案的有效性和准确性。最后, 分析了深井接地极与水平及垂直接地极接地电阻测量的异同,为类似深井接地极接地电阻测量以及相关标 准修订提供了参考。
Abstract:
DC deep well grounding electrode has high engineering value due to it’s small footprint and easy site se? lection. Because a single deep well grounding electrode’s maximum diagonal distance is less than one meter,it is ob? viously not appropriate to measure the grounding resistance directly by using the manual recommended 5 times diago? nal distance from the manual wiring. Therefore,we built a DC deep well grounding electrode model and calculated its grounding resistance. And studied the law of the surface potential distribution under the action of current field creat? ed by current electrode,combining the calculated grounding resistance value,we analyzed the layout requirements for voltage electrode. By changing the position of current and voltage electrode,we studied the relationship between measurement error and wiring distance,and put forward a scheme of current and voltage electrode layout for the mea? surement of the grounding resistance. The scheme of the research was used to measure the grounding resistance of the deep well grounding electrode,which verified it’s validity and accuracy. Finally,we analyzed the similarities and differences of resistance measurement between deep well grounding electrode and horizontal and vertical grounding, which provides a reference for the measurement of deep grounding resistance and related standards revision.

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备注/Memo

备注/Memo:
收稿日期:2018?10?09; 修回日期:2018?12?26?#24405;?#23792;(1994—),男,硕士,主要研究方向为电力系统接 地技术。
更新日期/Last Update: 2019-05-20
逆水寒帮会倒买倒卖攻略