CN101388545B - 一种基于零序电抗线的零序电抗多边形继电器 - Google Patents
一种基于零序电抗线的零序电抗多边形继电器 Download PDFInfo
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EP2502319A4 (en) * | 2009-11-18 | 2013-09-11 | Abb Research Ltd | METHOD AND APPARATUS FOR PROTECTING DISTANCE FROM GROUNDING |
CN105527543B (zh) * | 2016-01-26 | 2018-06-01 | 国家电网公司 | 一种高压线路纵联零序方向判别方法及装置 |
CN107947129B (zh) * | 2016-10-12 | 2020-01-17 | 国网西藏电力有限公司 | 一种零序保护方法 |
CN110544925B (zh) * | 2019-06-17 | 2023-03-10 | 国网西藏电力有限公司电力科学研究院 | 确定光伏场站送出线故障点的线路保护范围的方法、系统 |
CN113659546B (zh) * | 2021-08-19 | 2023-08-08 | 国网湖南省电力有限公司 | 一种用于双回线供电系统的零序方向元件补偿方法及系统 |
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Denomination of invention: Null sequence polygon relay based on null sequence reactor Effective date of registration: 20120830 Granted publication date: 20100922 Pledgee: China Co truction Bank Corp Beijing Zhongguancun branch Pledgor: Beijing Sifang Jibao Automation Co., Ltd. Registration number: 2012990000482 |
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Effective date of registration: 20190423 Address after: 100085 9, four street, Shang Di information industry base, Haidian District, Beijing. Co-patentee after: Beijing Sifang Jibao Engineering Technology Co., Ltd. Patentee after: Beijing Sifang Jibao Automation Co., Ltd. Address before: 100085 9, four street, Shang Di information industry base, Haidian District, Beijing. Patentee before: Beijing Sifang Jibao Automation Co., Ltd. |