CN108963975A - 一种特高压变压器差动保护方法及装置 - Google Patents
一种特高压变压器差动保护方法及装置 Download PDFInfo
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- CN108963975A CN108963975A CN201810653829.XA CN201810653829A CN108963975A CN 108963975 A CN108963975 A CN 108963975A CN 201810653829 A CN201810653829 A CN 201810653829A CN 108963975 A CN108963975 A CN 108963975A
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- differential protection
- current
- phase
- high voltage
- ultra
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/045—Differential protection of transformers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
Abstract
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Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN201810653829.XA CN108963975B (zh) | 2018-06-22 | 2018-06-22 | 一种特高压变压器差动保护方法及装置 |
PCT/CN2019/092221 WO2019242716A1 (zh) | 2018-06-22 | 2019-06-21 | 一种特高压变压器差动保护方法及装置 |
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CN201810653829.XA CN108963975B (zh) | 2018-06-22 | 2018-06-22 | 一种特高压变压器差动保护方法及装置 |
Publications (2)
Publication Number | Publication Date |
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CN108963975A true CN108963975A (zh) | 2018-12-07 |
CN108963975B CN108963975B (zh) | 2019-11-12 |
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CN201810653829.XA Active CN108963975B (zh) | 2018-06-22 | 2018-06-22 | 一种特高压变压器差动保护方法及装置 |
Country Status (2)
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CN (1) | CN108963975B (zh) |
WO (1) | WO2019242716A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019242716A1 (zh) * | 2018-06-22 | 2019-12-26 | 许继集团有限公司 | 一种特高压变压器差动保护方法及装置 |
CN113410823A (zh) * | 2021-05-12 | 2021-09-17 | 北京四方继保工程技术有限公司 | 一种不受负荷影响的零序电流差动保护选相方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004015861A (ja) * | 2002-06-04 | 2004-01-15 | Mitsubishi Electric Corp | 変圧器保護用比率差動継電器 |
CN1964149A (zh) * | 2006-12-19 | 2007-05-16 | 北京四方继保自动化股份有限公司 | 大型电力变压器负序电流差动保护方法 |
CN104078934A (zh) * | 2014-07-15 | 2014-10-01 | 国家电网公司 | 变压器差动电流保护防误动继电保护方法 |
CN104319736A (zh) * | 2014-10-17 | 2015-01-28 | 许继集团有限公司 | 一种特高压变压器差动保护方法 |
CN105071344A (zh) * | 2015-07-17 | 2015-11-18 | 许继集团有限公司 | 一种变压器励磁涌流识别方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100472910C (zh) * | 2004-09-30 | 2009-03-25 | 南京南瑞继保电气有限公司 | 基于电压跌落和时滞法的变压器差动保护方法 |
CN105140893B (zh) * | 2015-07-27 | 2018-02-27 | 许继集团有限公司 | 一种差动保护ct饱和识别方法 |
CN105024365B (zh) * | 2015-08-05 | 2018-07-20 | 许继集团有限公司 | 一种采样点差动保护防误动方法 |
US10090670B2 (en) * | 2016-03-22 | 2018-10-02 | Xj Group Corporation | Prevention method of abnormal action protection of UHV regulating compensation transformer with no-load input |
CN106384995B (zh) * | 2016-11-17 | 2019-05-31 | 国家电网公司 | 一种差动保护闭锁方法及装置 |
CN108963975B (zh) * | 2018-06-22 | 2019-11-12 | 许继集团有限公司 | 一种特高压变压器差动保护方法及装置 |
-
2018
- 2018-06-22 CN CN201810653829.XA patent/CN108963975B/zh active Active
-
2019
- 2019-06-21 WO PCT/CN2019/092221 patent/WO2019242716A1/zh active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004015861A (ja) * | 2002-06-04 | 2004-01-15 | Mitsubishi Electric Corp | 変圧器保護用比率差動継電器 |
CN1964149A (zh) * | 2006-12-19 | 2007-05-16 | 北京四方继保自动化股份有限公司 | 大型电力变压器负序电流差动保护方法 |
CN104078934A (zh) * | 2014-07-15 | 2014-10-01 | 国家电网公司 | 变压器差动电流保护防误动继电保护方法 |
CN104319736A (zh) * | 2014-10-17 | 2015-01-28 | 许继集团有限公司 | 一种特高压变压器差动保护方法 |
CN105071344A (zh) * | 2015-07-17 | 2015-11-18 | 许继集团有限公司 | 一种变压器励磁涌流识别方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019242716A1 (zh) * | 2018-06-22 | 2019-12-26 | 许继集团有限公司 | 一种特高压变压器差动保护方法及装置 |
CN113410823A (zh) * | 2021-05-12 | 2021-09-17 | 北京四方继保工程技术有限公司 | 一种不受负荷影响的零序电流差动保护选相方法 |
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Publication number | Publication date |
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WO2019242716A1 (zh) | 2019-12-26 |
CN108963975B (zh) | 2019-11-12 |
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Effective date of registration: 20221228 Address after: 461100 Weiwu Avenue and Yongxing East Road Intersection, Urban Rural Integration Demonstration Zone, Xuchang City, Henan Province, 150 meters east and north Patentee after: Henan Xujijibao Electric Automation Co.,Ltd. Patentee after: XJ Group Corp. Patentee after: XJ ELECTRIC Co.,Ltd. Patentee after: XUCHANG XUJI SOFTWARE TECHNOLOGY Co.,Ltd. Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee before: XJ Group Corp. Patentee before: XJ ELECTRIC Co.,Ltd. Patentee before: XUCHANG XUJI SOFTWARE TECHNOLOGY Co.,Ltd. |
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