CN100570384C - Method for testing electric secondary AC loop - Google Patents
Method for testing electric secondary AC loop Download PDFInfo
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- CN100570384C CN100570384C CN 200810015025 CN200810015025A CN100570384C CN 100570384 C CN100570384 C CN 100570384C CN 200810015025 CN200810015025 CN 200810015025 CN 200810015025 A CN200810015025 A CN 200810015025A CN 100570384 C CN100570384 C CN 100570384C
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
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- 230000007935 neutral effect Effects 0.000 claims abstract description 11
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- 230000005284 excitation Effects 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 10
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- 238000012795 verification Methods 0.000 description 11
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CN 200810015025 CN100570384C (en) | 2008-04-01 | 2008-04-01 | Method for testing electric secondary AC loop |
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CN 200810015025 CN100570384C (en) | 2008-04-01 | 2008-04-01 | Method for testing electric secondary AC loop |
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CN101251569A CN101251569A (en) | 2008-08-27 |
CN100570384C true CN100570384C (en) | 2009-12-16 |
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CN 200810015025 Active CN100570384C (en) | 2008-04-01 | 2008-04-01 | Method for testing electric secondary AC loop |
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CN101710691B (en) * | 2009-09-30 | 2012-07-04 | 中国水电顾问集团华东勘测设计研究院 | Device for eliminating protection dead zone of generator motor and main transformer in pumped storage power station |
CN101699306B (en) * | 2009-11-16 | 2012-07-04 | 河南电力试验研究院 | Method for monitoring current acquisition circuit of electric power secondary system |
CN101958530A (en) * | 2010-10-26 | 2011-01-26 | 湖北白莲河抽水蓄能有限公司 | Main transformer differential protection CT polarity check method of pumped storage power station |
CN102455395B (en) * | 2010-10-29 | 2014-03-12 | 中国二十冶集团有限公司 | Method for testing high-voltage power supply and power distribution system loop |
CN102095950B (en) * | 2010-11-10 | 2012-12-26 | 中冶建工有限公司 | Overall test and construction method of differential protection system of large-scale transformer |
CN102109565B (en) * | 2010-12-20 | 2013-04-03 | 山东电力集团公司超高压公司 | Intelligent detector of CT (current transformer) secondary circuit |
CN103076529B (en) * | 2012-12-27 | 2015-10-28 | 山东电力集团公司检修公司 | CT secondary circuit intelligent detecting method |
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CN103278735B (en) * | 2013-04-27 | 2015-09-02 | 国家电网公司 | Multifunctional three-phase transformer CT loop-around test instrument |
CN103500990B (en) * | 2013-09-30 | 2016-02-10 | 国家电网公司 | A kind of system of selection optimizing mother CT winding in bus differential protection device |
CN104198832B (en) * | 2014-07-09 | 2017-03-08 | 中冶建工集团有限公司 | A kind of high pressure transformer and distribution power station Integrated Checkout test method |
CN104316823B (en) * | 2014-11-11 | 2017-05-31 | 国家电网公司 | A kind of method and device of defects detection |
CN104950203B (en) * | 2015-06-17 | 2017-08-29 | 国网山东潍坊市寒亭区供电公司 | Transformer current protective loop method of calibration |
CN106885959B (en) * | 2017-02-14 | 2020-03-06 | 山东中实易通集团有限公司 | Test method for replacing short-circuit copper bar by grounding knife switch in power plant electric main start test |
CN106814278A (en) * | 2017-02-21 | 2017-06-09 | 云南电网有限责任公司 | Plant stand take out can it is high anti-once and secondary current loop Site Detection and determination methods |
CN107196275A (en) * | 2017-06-19 | 2017-09-22 | 中国南方电网有限责任公司 | A kind of method for examining bus differential protection secondary circuit with electric transmission in short-term |
CN107478943A (en) * | 2017-08-09 | 2017-12-15 | 大唐东北电力试验研究所有限公司 | Detect the method and device of differential protection for generator polarity |
CN108614213B (en) * | 2018-05-24 | 2020-12-01 | 中国神华能源股份有限公司 | Polarity test method for generator-transformer group differential protection |
CN108767813B (en) * | 2018-06-22 | 2019-11-29 | 清远蓄能发电有限公司 | A kind of hydroenergy storage station transform er differential protection current channel switching method |
CN109001587B (en) * | 2018-07-04 | 2021-05-25 | 云南电网有限责任公司 | Method for verifying main transformer high-voltage side CT polarity by utilizing excitation inrush current |
CN108919061A (en) * | 2018-09-20 | 2018-11-30 | 中国南方电网有限责任公司 | A kind of digitlization small current earthing wire-selecting method |
CN109655681B (en) * | 2018-10-30 | 2022-02-01 | 北京天能继保电力科技有限公司 | Transformer substation and switch station secondary measurement loop abnormity detection method and system |
CN109782084A (en) * | 2018-12-06 | 2019-05-21 | 安徽凯川电力保护设备有限公司 | A kind of intelligent inhibition cabinet control system |
CN110031718B (en) * | 2019-04-22 | 2021-11-23 | 中铁二局集团电务工程有限公司 | Method for verifying integrity of alternating current circuit by pressurizing low-voltage side of railway traction station |
CN110794247B (en) * | 2019-08-08 | 2024-06-25 | 天生桥二级水力发电有限公司天生桥水力发电总厂 | Automatic device inspection platform |
CN110658377B (en) * | 2019-10-23 | 2021-11-09 | 国网山西省电力公司阳泉供电公司 | Voltage secondary opening triangular loop monitoring device |
CN110880890B (en) * | 2019-11-05 | 2021-10-26 | 武汉武水电气技术有限责任公司 | Low pressure hydraulic generator protection system |
CN111413640B (en) * | 2020-04-03 | 2022-04-19 | 国网甘肃省电力公司建设分公司 | Differential protection wiring detection method and device of high-impedance transformer |
CN111624523A (en) * | 2020-06-02 | 2020-09-04 | 西安热工研究院有限公司 | System and method for verifying differential protection polarity of line of generator-transformer unit wiring mode system |
CN113820632A (en) * | 2020-06-18 | 2021-12-21 | 杭州普安科技有限公司 | Passive power secondary circuit wiring checking system and method |
CN111913060B (en) * | 2020-07-06 | 2023-04-25 | 西安热工研究院有限公司 | Verification system and method for checking differential protection polarity through main transformer inverted power transmission on load |
CN112858958B (en) * | 2021-01-05 | 2023-02-28 | 中国神华能源股份有限公司国华电力分公司 | Method for detecting current wiring polarity of high-backup-power-transformation protection device |
CN113138336B (en) * | 2021-04-16 | 2022-11-01 | 西安热工研究院有限公司 | Test method for measuring voltage and power direction of generator by short route test in high plant |
CN113376468B (en) * | 2021-06-23 | 2022-08-30 | 四川华能宝兴河水电有限责任公司 | Systematic detection method for defects of electrical secondary circuit |
Citations (2)
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CN2722265Y (en) * | 2004-09-17 | 2005-08-31 | 姜洪腾 | DC grounding on-line tester |
CN2826450Y (en) * | 2005-09-15 | 2006-10-11 | 辽宁华冶集团发展有限公司 | Quadric, tertiary loop abnormity warning device for voltage transformer |
-
2008
- 2008-04-01 CN CN 200810015025 patent/CN100570384C/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2722265Y (en) * | 2004-09-17 | 2005-08-31 | 姜洪腾 | DC grounding on-line tester |
CN2826450Y (en) * | 2005-09-15 | 2006-10-11 | 辽宁华冶集团发展有限公司 | Quadric, tertiary loop abnormity warning device for voltage transformer |
Non-Patent Citations (6)
Title |
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利用短路电流检查二次回路接线的正确性. 齐忠玉.黑龙江电力技术,第19卷第2期. 1997 |
利用短路电流检查二次回路接线的正确性. 齐忠玉.黑龙江电力技术,第19卷第2期. 1997 * |
检查交流二次回路接线的新方法. 任留通.电力建设,第14卷第6期. 1993 |
检查交流二次回路接线的新方法. 任留通.电力建设,第14卷第6期. 1993 * |
用一次通流法检查变压器CT二次回路. 耿长福.吉林电力技术,第1996年卷第5期. 1996 |
用一次通流法检查变压器CT二次回路. 耿长福.吉林电力技术,第1996年卷第5期. 1996 * |
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CN101251569A (en) | 2008-08-27 |
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Address after: 250002 east end of south 2nd Ring Road, Shandong, Ji'nan Patentee after: SHANDONG ELECTRIC POWER Research Institute Patentee after: STATE GRID CORPORATION OF CHINA Address before: 250002 east end of south 2nd Ring Road, Shandong, Ji'nan Patentee before: SHANDONG ELECTRIC POWER Research Institute Patentee before: State Grid Corporation of China |
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Effective date of registration: 20220129 Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. Patentee after: STATE GRID CORPORATION OF CHINA Address before: 250002 east end of south 2nd Ring Road, Shandong, Ji'nan Patentee before: SHANDONG ELECTRIC POWER Research Institute Patentee before: STATE GRID CORPORATION OF CHINA |
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