CN103368166B - 一种零序全电流功率方向实现煤矿高压电网选择性漏电保护的方法 - Google Patents
一种零序全电流功率方向实现煤矿高压电网选择性漏电保护的方法 Download PDFInfo
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CN108919056B (zh) * | 2018-07-26 | 2020-10-16 | 云南电网有限责任公司电力科学研究院 | 一种基于群体角差的故障判相方法及装置 |
CN111426915B (zh) * | 2020-05-11 | 2022-06-07 | 云南电网有限责任公司电力科学研究院 | 一种分布式小电流接地故障定位方法 |
CN111781461B (zh) * | 2020-06-01 | 2022-04-26 | 云南电网有限责任公司临沧供电局 | 一种小电流接地电力系统的接地故障选线定段方法 |
CN114089088B (zh) * | 2020-07-15 | 2024-05-10 | 北京天阳睿博科技有限公司 | 一种基于wams和物联网技术的煤矿全电网高压漏电监控系统 |
CN111817280A (zh) * | 2020-07-16 | 2020-10-23 | 山东电安电气有限公司 | 一种保障人身安全且持续供电的漏电保护方法及装置 |
CN117406031B (zh) * | 2023-12-14 | 2024-03-19 | 国网天津市电力公司电力科学研究院 | 基于暂态信息融合的配电网单相接地故障定位方法及装置 |
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CN101499650A (zh) * | 2009-03-10 | 2009-08-05 | 南京因泰莱配电自动化设备有限公司 | 基于gprs的小电流接地选线保护装置及保护方法 |
CN101951010A (zh) * | 2010-08-23 | 2011-01-19 | 南京弘毅电气自动化有限公司 | 一种小电流接地系统的接地保护方法 |
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CN101499650A (zh) * | 2009-03-10 | 2009-08-05 | 南京因泰莱配电自动化设备有限公司 | 基于gprs的小电流接地选线保护装置及保护方法 |
CN101951010A (zh) * | 2010-08-23 | 2011-01-19 | 南京弘毅电气自动化有限公司 | 一种小电流接地系统的接地保护方法 |
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Denomination of invention: Method for realizing coal mine high-voltage power grid selective electric leakage protection along zero sequence total current power direction Effective date of registration: 20191213 Granted publication date: 20160406 Pledgee: Xuzhou Productivity Promotion Center Pledgor: Jiangsu Guangzhi Electric Co.,Ltd. Registration number: Y2019320000351 |
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