CN202602252U - Device for suppressing direct current at neutral point of transformer by adjustable resistor method - Google Patents
Device for suppressing direct current at neutral point of transformer by adjustable resistor method Download PDFInfo
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- CN202602252U CN202602252U CN 201220263809 CN201220263809U CN202602252U CN 202602252 U CN202602252 U CN 202602252U CN 201220263809 CN201220263809 CN 201220263809 CN 201220263809 U CN201220263809 U CN 201220263809U CN 202602252 U CN202602252 U CN 202602252U
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- neutral point
- direct current
- adjustable resistance
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- transformer
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- 230000007935 neutral effect Effects 0.000 title claims abstract description 64
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220263809 CN202602252U (en) | 2012-03-15 | 2012-06-06 | Device for suppressing direct current at neutral point of transformer by adjustable resistor method |
Applications Claiming Priority (3)
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CN201220097239 | 2012-03-15 | ||
CN201220097239.1 | 2012-03-15 | ||
CN 201220263809 CN202602252U (en) | 2012-03-15 | 2012-06-06 | Device for suppressing direct current at neutral point of transformer by adjustable resistor method |
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CN202602252U true CN202602252U (en) | 2012-12-12 |
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CN 201220263809 Expired - Fee Related CN202602252U (en) | 2012-03-15 | 2012-06-06 | Device for suppressing direct current at neutral point of transformer by adjustable resistor method |
CN201210183970.0A Active CN102709881B (en) | 2012-03-15 | 2012-06-06 | Device utilizing adjustable resistance method to curb DC of neutral point of transformer |
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CN201210183970.0A Active CN102709881B (en) | 2012-03-15 | 2012-06-06 | Device utilizing adjustable resistance method to curb DC of neutral point of transformer |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102709881A (en) * | 2012-03-15 | 2012-10-03 | 东北电力科学研究院有限公司 | Device utilizing adjustable resistance method to curb DC of neutral point of transformer |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103560500B (en) * | 2013-11-05 | 2016-08-17 | 国家电网公司 | The energy-conservation choosing method of substation grounding transformer grounding resistance |
CN103647268A (en) * | 2013-12-14 | 2014-03-19 | 国家电网公司 | Selection method of 110 kV power distribution network neutral resistor |
CN104575992A (en) * | 2013-12-19 | 2015-04-29 | 国家电网公司 | Online monitoring and isolation device for direct current magnetic bias of power transformer |
CN104465052A (en) * | 2014-11-19 | 2015-03-25 | 广州高澜节能技术股份有限公司 | Transformer neutral point resistance type direct current suppression device |
CN105048435B (en) * | 2015-08-10 | 2018-09-18 | 中国南方电网有限责任公司电网技术研究中心 | Transformer direct-current magnetic bias current suppression device and control method |
CN105048431B (en) * | 2015-08-10 | 2018-09-18 | 中国南方电网有限责任公司电网技术研究中心 | DC magnetic bias current suppression device of transformer |
CN105048437B (en) * | 2015-09-03 | 2018-08-24 | 芜湖科越电气有限公司 | A kind of combined type neutral ground composite control apparatus |
CN107453326A (en) * | 2017-08-23 | 2017-12-08 | 全球能源互联网研究院 | The protection device and micro-capacitance sensor of a kind of grounding transformer |
CN107670203A (en) * | 2017-09-14 | 2018-02-09 | 国网山东省电力公司汶上县供电公司 | Electric substation's disaster prevention system and method |
EP3531523B1 (en) * | 2018-02-23 | 2022-05-11 | General Electric Technology GmbH | Fault handling |
US20230020744A1 (en) * | 2019-09-06 | 2023-01-19 | Jiaxing Super Lighting Electric Appliance Co., Ltd | Surge protection circuit, power supply device using same, and led illumination device |
CN111614116B (en) * | 2020-06-18 | 2022-07-12 | 南方电网科学研究院有限责任公司 | Grounding method and device of flexible direct current system |
CN113452007B (en) * | 2021-06-29 | 2022-04-29 | 西南交通大学 | Neutral point direct current calculation method for transformer of urban power grid |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2847637Y (en) * | 2005-11-18 | 2006-12-13 | 中国电力科学研究院 | Device for suppressing transformer neutral point DC current by capacitance method |
CN201118203Y (en) * | 2007-11-15 | 2008-09-17 | 上海市电力公司超高压输变电公司 | Device for suppressing transformer noise arousing from dc magnetic bias |
CN101710697B (en) * | 2009-11-17 | 2012-05-16 | 江苏省电力试验研究院有限公司 | Device and method for inhibiting direct current of neutral point of transformer |
CN202602252U (en) * | 2012-03-15 | 2012-12-12 | 东北电力科学研究院有限公司 | Device for suppressing direct current at neutral point of transformer by adjustable resistor method |
-
2012
- 2012-06-06 CN CN 201220263809 patent/CN202602252U/en not_active Expired - Fee Related
- 2012-06-06 CN CN201210183970.0A patent/CN102709881B/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102709881A (en) * | 2012-03-15 | 2012-10-03 | 东北电力科学研究院有限公司 | Device utilizing adjustable resistance method to curb DC of neutral point of transformer |
CN102709881B (en) * | 2012-03-15 | 2015-04-22 | 东北电力科学研究院有限公司 | Device utilizing adjustable resistance method to curb DC of neutral point of transformer |
Also Published As
Publication number | Publication date |
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CN102709881A (en) | 2012-10-03 |
CN102709881B (en) | 2015-04-22 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20171206 Address after: Heping District, Siping City of Shenyang province Liaoning 110006 Street No. 39 Co-patentee after: NARI Technology Development Co., Ltd. Patentee after: Northeast Electric Power Research Institute Co., Ltd. Co-patentee after: Liaoning Electric Power Co., Ltd.Electric Power Science Research Institute Co-patentee after: State Grid Corporation of China Address before: Heping District, Siping City of Shenyang province Liaoning 110006 Street No. 39 Co-patentee before: Nanjing Nari Co., Ltd. Patentee before: Northeast Electric Power Research Institute Co., Ltd. Co-patentee before: Liaoning Electric Power Co., Ltd.Electric Power Science Research Institute Co-patentee before: State Grid Corporation of China |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20200606 |
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CF01 | Termination of patent right due to non-payment of annual fee |