CN104076240B - Ultrahigh voltage alternating current transmission lines three phase short circuit fault recognition methods - Google Patents
Ultrahigh voltage alternating current transmission lines three phase short circuit fault recognition methods Download PDFInfo
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CN201410336575.0A CN104076240B (en) | 2014-07-15 | 2014-07-15 | Ultrahigh voltage alternating current transmission lines three phase short circuit fault recognition methods |
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Families Citing this family (4)
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CN104852365B (en) * | 2015-05-15 | 2018-11-06 | 国家电网公司 | Based on single-end electrical quantity ultrahigh voltage alternating current transmission lines three phase short circuit fault method of discrimination |
CN105203918A (en) * | 2015-09-14 | 2015-12-30 | 国网福建省电力有限公司 | Extra-high voltage alternating current transmission line three-phase short-circuit fault distance detection method based on single-ended electrical quantity |
CN110780235B (en) * | 2019-11-12 | 2022-05-31 | 深圳供电局有限公司 | Disconnection fault identification method and system based on phase-to-phase voltage difference |
CN110927621B (en) * | 2019-11-12 | 2022-12-27 | 上海宝钢工业技术服务有限公司 | Grounding detection positioning system for closed friction electric track of conveying chain |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004343883A (en) * | 2003-05-15 | 2004-12-02 | Railway Technical Res Inst | Method and device for plotting earth fault point for magnetic floating system of railway |
CN101614779A (en) * | 2008-12-30 | 2009-12-30 | 许继集团有限公司 | Differentiate the method for shunt reactor turn-to-turn short circuit, line to line fault and single-phase short circuit |
CN103219713A (en) * | 2013-04-15 | 2013-07-24 | 国家电网公司 | Electric transmission line phase fault distance protecting method |
CN103762569A (en) * | 2014-02-18 | 2014-04-30 | 国家电网公司 | Two phrase grounding short circuit fault direction discriminating method of double circuit lines on the same tower |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004343883A (en) * | 2003-05-15 | 2004-12-02 | Railway Technical Res Inst | Method and device for plotting earth fault point for magnetic floating system of railway |
CN101614779A (en) * | 2008-12-30 | 2009-12-30 | 许继集团有限公司 | Differentiate the method for shunt reactor turn-to-turn short circuit, line to line fault and single-phase short circuit |
CN103219713A (en) * | 2013-04-15 | 2013-07-24 | 国家电网公司 | Electric transmission line phase fault distance protecting method |
CN103762569A (en) * | 2014-02-18 | 2014-04-30 | 国家电网公司 | Two phrase grounding short circuit fault direction discriminating method of double circuit lines on the same tower |
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Owner name: STATE GRID FUJIAN ELECTRIC POWER CO., LTD. MAINTEN Free format text: FORMER OWNER: STATE GRID FUJIAN ELECTRIC POWER CO., LTD. MAINTENANCE BRANCH COMPANY OF STATE GRID FUJIAN ELECTRIC POWER COMPANY Effective date: 20140928 |
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Inventor after: Zeng Huimin Inventor after: Lin Fuhong Inventor before: Zeng Huimin |
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Effective date of registration: 20140928 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: STATE GRID FUJIAN ELECTRIC POWER Co.,Ltd. Applicant after: STATE GRID FUJIAN MAINTENANCE Co. Applicant after: STATE GRID PUTIAN ELECTRIC POWER SUPPLY Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: STATE GRID FUJIAN ELECTRIC POWER Co.,Ltd. Applicant before: STATE GRID FUJIAN MAINTENANCE Co. |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: STATE GRID FUJIAN ELECTRIC POWER Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: STATE GRID FUJIAN MAINTENANCE Co. Co-patentee after: STATE GRID PUTIAN ELECTRIC POWER SUPPLY Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: STATE GRID FUJIAN ELECTRIC POWER Co.,Ltd. Patentee before: State Grid Corporation of China Co-patentee before: STATE GRID FUJIAN MAINTENANCE Co. Co-patentee before: STATE GRID PUTIAN ELECTRIC POWER SUPPLY Co. |
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Address after: 351100 Putian province Fujian city Chengxiang District Nanyuan Xia Lin Street Road No. 999 Co-patentee after: STATE GRID CORPORATION OF CHINA Patentee after: STATE GRID PUTIAN ELECTRIC POWER SUPPLY Co. Co-patentee after: STATE GRID FUJIAN ELECTRIC POWER Co.,Ltd. Co-patentee after: STATE GRID FUJIAN MAINTENANCE Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: STATE GRID FUJIAN ELECTRIC POWER Co.,Ltd. Patentee before: STATE GRID CORPORATION OF CHINA Co-patentee before: STATE GRID FUJIAN MAINTENANCE Co. Co-patentee before: STATE GRID PUTIAN ELECTRIC POWER SUPPLY Co. |
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