CN102279338A - Method for monitoring two-phase grounding fault of magnetic levitation stator coil - Google Patents
Method for monitoring two-phase grounding fault of magnetic levitation stator coil Download PDFInfo
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- CN102279338A CN102279338A CN2011101100018A CN201110110001A CN102279338A CN 102279338 A CN102279338 A CN 102279338A CN 2011101100018 A CN2011101100018 A CN 2011101100018A CN 201110110001 A CN201110110001 A CN 201110110001A CN 102279338 A CN102279338 A CN 102279338A
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201110110001 CN102279338B (en) | 2011-04-29 | 2011-04-29 | Method for monitoring two-phase grounding fault of magnetic levitation stator coil |
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CN 201110110001 CN102279338B (en) | 2011-04-29 | 2011-04-29 | Method for monitoring two-phase grounding fault of magnetic levitation stator coil |
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CN102279338A true CN102279338A (en) | 2011-12-14 |
CN102279338B CN102279338B (en) | 2013-09-25 |
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CN 201110110001 Expired - Fee Related CN102279338B (en) | 2011-04-29 | 2011-04-29 | Method for monitoring two-phase grounding fault of magnetic levitation stator coil |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106443331A (en) * | 2016-09-08 | 2017-02-22 | 中铁第四勘察设计院集团有限公司 | Pulse method based feed catenary fault locating system |
CN110618343A (en) * | 2019-09-30 | 2019-12-27 | 广西桂冠电力股份有限公司 | Device and method for searching generator stator bar ground fault point |
CN114217181A (en) * | 2021-11-25 | 2022-03-22 | 广东电网有限责任公司广州供电局 | GIS cable sleeve test window |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1351773A (en) * | 1999-05-24 | 2002-05-29 | Abb电力自动化有限公司 | Electrical machine winding ground-fault protection system |
CN1361569A (en) * | 2000-12-29 | 2002-07-31 | 穆大庆 | Single-phase earthing protection method for small current earthing system |
CN1933270A (en) * | 2006-01-26 | 2007-03-21 | 天津大学 | Transmission line distance protecting method |
JP2009077562A (en) * | 2007-09-21 | 2009-04-09 | Chugoku Electric Power Co Inc:The | Two-phase bushing current transformer and protective relay device |
CN101593971A (en) * | 2009-04-22 | 2009-12-02 | 北京四方继保自动化股份有限公司 | A kind of guard method based on failure resonant frequency |
CN102005738A (en) * | 2010-12-15 | 2011-04-06 | 国网电力科学研究院 | Method for identifying healthy phase saturation based on current amplitude ratio and differential current harmonic wave |
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2011
- 2011-04-29 CN CN 201110110001 patent/CN102279338B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1351773A (en) * | 1999-05-24 | 2002-05-29 | Abb电力自动化有限公司 | Electrical machine winding ground-fault protection system |
CN1361569A (en) * | 2000-12-29 | 2002-07-31 | 穆大庆 | Single-phase earthing protection method for small current earthing system |
CN1933270A (en) * | 2006-01-26 | 2007-03-21 | 天津大学 | Transmission line distance protecting method |
JP2009077562A (en) * | 2007-09-21 | 2009-04-09 | Chugoku Electric Power Co Inc:The | Two-phase bushing current transformer and protective relay device |
CN101593971A (en) * | 2009-04-22 | 2009-12-02 | 北京四方继保自动化股份有限公司 | A kind of guard method based on failure resonant frequency |
CN102005738A (en) * | 2010-12-15 | 2011-04-06 | 国网电力科学研究院 | Method for identifying healthy phase saturation based on current amplitude ratio and differential current harmonic wave |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106443331A (en) * | 2016-09-08 | 2017-02-22 | 中铁第四勘察设计院集团有限公司 | Pulse method based feed catenary fault locating system |
CN106443331B (en) * | 2016-09-08 | 2019-03-05 | 中铁第四勘察设计院集团有限公司 | Feed contact net fault location system based on impulse method |
CN110618343A (en) * | 2019-09-30 | 2019-12-27 | 广西桂冠电力股份有限公司 | Device and method for searching generator stator bar ground fault point |
CN114217181A (en) * | 2021-11-25 | 2022-03-22 | 广东电网有限责任公司广州供电局 | GIS cable sleeve test window |
CN114217181B (en) * | 2021-11-25 | 2024-04-12 | 广东电网有限责任公司广州供电局 | GIS cable sleeve test window |
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CN102279338B (en) | 2013-09-25 |
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C14 | Grant of patent or utility model | ||
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Free format text: FORMER OWNER: SHANGHAI MAGNETIC SUSPENSION COMMUNICATION ENGINEERING TECHNOLOGY RESEARCH CENTE Effective date: 20150209 Owner name: TONGJI UNIVERSITY Free format text: FORMER OWNER: SHANGHAI MAGLEV TRANSPORTATION DEVELOPMENT CO., LTD. Effective date: 20150209 |
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Free format text: CORRECT: ADDRESS; FROM: 201204 PUDONG NEW AREA, SHANGHAI TO: 200092 YANGPU, SHANGHAI |
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TR01 | Transfer of patent right |
Effective date of registration: 20150209 Address after: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee after: Tongji University Address before: 201204 Pudong New Area, Longyang Road, No. 2520, Patentee before: Shanghai Maglev Transportation Development Co., Ltd. Patentee before: Shanghai Magnetic Suspension Communication Engineering Technology Research Cente |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20160429 |