CN104062552A - Non-same-phase overline ground fault single-ended distance measurement method for double-circuit lines - Google Patents
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104950211A (en) * | 2015-06-17 | 2015-09-30 | 国家电网公司 | Measurement method for out-of-phase interline grounding fault distance of double-circuit lines based on single-end electric quantity of single-circuit line |
CN104950224A (en) * | 2015-06-17 | 2015-09-30 | 国家电网公司 | Double-circuit line different phase overline grounding fault single-terminal location method |
CN104950226A (en) * | 2015-06-17 | 2015-09-30 | 国家电网公司 | Double-circuit non-homonymous phase interline grounding fault identification method based on position relative coefficient direction features |
CN105785226A (en) * | 2016-03-29 | 2016-07-20 | 国网福建省电力有限公司 | Range finding method for non-homonymic phase overline earth fault of double-circuit line based on directional characteristic of position relative coefficient |
CN105866620A (en) * | 2016-03-30 | 2016-08-17 | 国网福建省电力有限公司 | Voltage phase comparison phase discrimination method of double-circuit line cross line grounding fault between different phases |
CN109901013A (en) * | 2019-02-26 | 2019-06-18 | 郭润生 | A method of differentiating distribution network failure direction using electric current, voltage jump amount polarity |
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CN103760469A (en) * | 2014-02-18 | 2014-04-30 | 国家电网公司 | Line single-phase earth fault positioning method based on before-and-after fault voltage phase characteristic |
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CN103267929A (en) * | 2013-05-10 | 2013-08-28 | 国家电网公司 | Method for achieving circuit phase-to-phase fault single-ended distance measurement by means of voltage drop imaginary part characteristics |
CN103278742A (en) * | 2013-05-10 | 2013-09-04 | 国家电网公司 | Line single-phase earthing fault single-end ranging method realized by utilizing voltage drop imaginary part characteristics |
CN103760469A (en) * | 2014-02-18 | 2014-04-30 | 国家电网公司 | Line single-phase earth fault positioning method based on before-and-after fault voltage phase characteristic |
CN103762560A (en) * | 2014-02-18 | 2014-04-30 | 国家电网公司 | Double-circuit line non-same-name-phase overline grounded reactance distance protection method |
CN103777116A (en) * | 2014-02-18 | 2014-05-07 | 国家电网公司 | Line interphase fault positioning method by using phase step characteristics between voltages before and after fault |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104950211A (en) * | 2015-06-17 | 2015-09-30 | 国家电网公司 | Measurement method for out-of-phase interline grounding fault distance of double-circuit lines based on single-end electric quantity of single-circuit line |
CN104950224A (en) * | 2015-06-17 | 2015-09-30 | 国家电网公司 | Double-circuit line different phase overline grounding fault single-terminal location method |
CN104950226A (en) * | 2015-06-17 | 2015-09-30 | 国家电网公司 | Double-circuit non-homonymous phase interline grounding fault identification method based on position relative coefficient direction features |
CN104950224B (en) * | 2015-06-17 | 2018-07-24 | 国家电网公司 | The non-same famous prime minister's cross-line earth fault method of single end distance measurement of double-circuit line |
CN105785226A (en) * | 2016-03-29 | 2016-07-20 | 国网福建省电力有限公司 | Range finding method for non-homonymic phase overline earth fault of double-circuit line based on directional characteristic of position relative coefficient |
CN105866620A (en) * | 2016-03-30 | 2016-08-17 | 国网福建省电力有限公司 | Voltage phase comparison phase discrimination method of double-circuit line cross line grounding fault between different phases |
CN105866620B (en) * | 2016-03-30 | 2019-04-09 | 国网福建省电力有限公司 | The non-same famous prime minister's cross-line ground fault voltage of double-circuit line is than phase phase judgment method |
CN109901013A (en) * | 2019-02-26 | 2019-06-18 | 郭润生 | A method of differentiating distribution network failure direction using electric current, voltage jump amount polarity |
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Effective date of registration: 20141014 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: State Grid Fujian Electric Power Co., Ltd. Applicant after: Maintenance branch company of State Grid Fujian Electric Power Co., Ltd. Applicant after: PUTIAN POWER SUPPLY COMPANY, STATE GRID FUJIAN ELECTRIC POWER CO., LTD. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Fujian Electric Power Co., Ltd. Applicant before: Maintenance branch company of State Grid Fujian Electric Power Co., Ltd. |
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