CN101699304A - 变电站直流接地查找方法 - Google Patents
变电站直流接地查找方法 Download PDFInfo
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- CN101699304A CN101699304A CN200910075800A CN200910075800A CN101699304A CN 101699304 A CN101699304 A CN 101699304A CN 200910075800 A CN200910075800 A CN 200910075800A CN 200910075800 A CN200910075800 A CN 200910075800A CN 101699304 A CN101699304 A CN 101699304A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000013024 troubleshooting Methods 0.000 title claims abstract description 7
- 239000004020 conductor Substances 0.000 claims description 13
- 230000005347 demagnetization Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Description
对地泄漏电流I1(mA) | 6.6 | 6 | 5.5 | 4.9 | 4.3 | 3.7 | 3.1 | 2.6 | 2.0 | 1.4 | 0.9 |
接地电阻R4(kΩ) | 0 | 1.8 | 3.5 | 6.1 | 9.3 | 13.7 | 19.7 | 26.8 | 40.1 | 64.7 | 110.3 |
对地电压(V) | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
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CN200910075800A CN101699304A (zh) | 2009-10-27 | 2009-10-27 | 变电站直流接地查找方法 |
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CN200910075800A CN101699304A (zh) | 2009-10-27 | 2009-10-27 | 变电站直流接地查找方法 |
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CN101699304A true CN101699304A (zh) | 2010-04-28 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102004213A (zh) * | 2010-10-26 | 2011-04-06 | 上海天晶电力科技发展有限公司 | 直测式智能直流系统绝缘及状态诊断仪 |
CN103472353A (zh) * | 2013-09-26 | 2013-12-25 | 国网河南省电力公司南阳供电公司 | 一种查找直流混线的方法 |
CN104614627A (zh) * | 2014-12-21 | 2015-05-13 | 深圳市柏特瑞电子有限公司 | 一种移动式直流漏电检测定位设备和检测定位方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101477180A (zh) * | 2009-01-23 | 2009-07-08 | 合肥英特电力设备有限公司 | 微机直流监测装置 |
-
2009
- 2009-10-27 CN CN200910075800A patent/CN101699304A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101477180A (zh) * | 2009-01-23 | 2009-07-08 | 合肥英特电力设备有限公司 | 微机直流监测装置 |
Non-Patent Citations (1)
Title |
---|
向小民等: "直流系统接地电阻和母线对地电压的计算", 《武汉水利电力大学(宜昌)学报》 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102004213A (zh) * | 2010-10-26 | 2011-04-06 | 上海天晶电力科技发展有限公司 | 直测式智能直流系统绝缘及状态诊断仪 |
CN102004213B (zh) * | 2010-10-26 | 2013-03-13 | 上海天晶电力科技发展有限公司 | 直测式智能直流系统绝缘及状态诊断仪 |
CN103472353A (zh) * | 2013-09-26 | 2013-12-25 | 国网河南省电力公司南阳供电公司 | 一种查找直流混线的方法 |
CN103472353B (zh) * | 2013-09-26 | 2016-02-03 | 国网河南新野县供电公司 | 一种查找直流混线的方法 |
CN104614627A (zh) * | 2014-12-21 | 2015-05-13 | 深圳市柏特瑞电子有限公司 | 一种移动式直流漏电检测定位设备和检测定位方法 |
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Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: HEBEI POWER COMPANY ULTRA-HV TRANSMISSION + DISTRIBUTION COMPANY Effective date: 20121213 Owner name: THE MAINTENANCE BRANCH OF HEBEI ELECTRIC POWER COR Effective date: 20121213 |
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Effective date of registration: 20121213 Address after: 100761 West Chang'an Avenue, Beijing, No. 86 Applicant after: State Grid Corporation of China Applicant after: Maintenance Branch, Hebei Electric Power Co.,Ltd. Address before: 050070 Hebei city in Shijiazhuang Province, Xinhua District, Zhong Sheng Road No. 66 Applicant before: Hebei Power Company Ultra-HV Transmission & Distribution Company |
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Application publication date: 20100428 |