CN107800113A - 一种电流差动保护区外故障闭锁的方法、系统及解锁方法 - Google Patents
一种电流差动保护区外故障闭锁的方法、系统及解锁方法 Download PDFInfo
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- CN107800113A CN107800113A CN201711070237.7A CN201711070237A CN107800113A CN 107800113 A CN107800113 A CN 107800113A CN 201711070237 A CN201711070237 A CN 201711070237A CN 107800113 A CN107800113 A CN 107800113A
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- Prior art keywords
- current
- differential protection
- breaker
- sampled power
- external area
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/28—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
- H02H3/283—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus and taking into account saturation of current transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/042—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for current transformers
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711070237.7A CN107800113B (zh) | 2017-11-03 | 2017-11-03 | 一种电流差动保护区外故障闭锁的方法、系统及解锁方法 |
Applications Claiming Priority (1)
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CN201711070237.7A CN107800113B (zh) | 2017-11-03 | 2017-11-03 | 一种电流差动保护区外故障闭锁的方法、系统及解锁方法 |
Publications (2)
Publication Number | Publication Date |
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CN107800113A true CN107800113A (zh) | 2018-03-13 |
CN107800113B CN107800113B (zh) | 2019-06-21 |
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CN201711070237.7A Active CN107800113B (zh) | 2017-11-03 | 2017-11-03 | 一种电流差动保护区外故障闭锁的方法、系统及解锁方法 |
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CN (1) | CN107800113B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112701667A (zh) * | 2021-01-20 | 2021-04-23 | 华中科技大学 | 基于数字编码的正序电流相位差动保护方法、装置及系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011087397A (ja) * | 2009-10-15 | 2011-04-28 | Mitsubishi Electric Corp | 差動保護継電装置 |
CN104852354A (zh) * | 2015-06-04 | 2015-08-19 | 南京南瑞继保电气有限公司 | 一种自适应斜率的变压器零序差动保护方法和装置 |
CN106159914A (zh) * | 2016-07-08 | 2016-11-23 | 国网山东省电力公司德州供电公司 | 一种基于功率模型的功率型差动保护算法 |
CN106972465A (zh) * | 2017-05-22 | 2017-07-21 | 南京南瑞继保电气有限公司 | 一种基于负序功率方向的变压器过流保护判据方法及装置 |
CN107271851A (zh) * | 2017-07-03 | 2017-10-20 | 西南交通大学 | 一种基于差动有功功率的广域后备保护方法 |
-
2017
- 2017-11-03 CN CN201711070237.7A patent/CN107800113B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011087397A (ja) * | 2009-10-15 | 2011-04-28 | Mitsubishi Electric Corp | 差動保護継電装置 |
CN104852354A (zh) * | 2015-06-04 | 2015-08-19 | 南京南瑞继保电气有限公司 | 一种自适应斜率的变压器零序差动保护方法和装置 |
CN106159914A (zh) * | 2016-07-08 | 2016-11-23 | 国网山东省电力公司德州供电公司 | 一种基于功率模型的功率型差动保护算法 |
CN106972465A (zh) * | 2017-05-22 | 2017-07-21 | 南京南瑞继保电气有限公司 | 一种基于负序功率方向的变压器过流保护判据方法及装置 |
CN107271851A (zh) * | 2017-07-03 | 2017-10-20 | 西南交通大学 | 一种基于差动有功功率的广域后备保护方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112701667A (zh) * | 2021-01-20 | 2021-04-23 | 华中科技大学 | 基于数字编码的正序电流相位差动保护方法、装置及系统 |
CN112701667B (zh) * | 2021-01-20 | 2021-11-02 | 华中科技大学 | 基于数字编码的正序电流相位差动保护方法、装置及系统 |
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CN107800113B (zh) | 2019-06-21 |
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Effective date of registration: 20200925 Address after: Room 118, No. 68 zhudian Road, Licheng District, Jinan, Shandong Province, 250100 Patentee after: Liyuan branch of Jinan Luyuan Electric Group Co.,Ltd. Patentee after: JINAN LICHENG DISTRICT POWER SUPPLY COMPANY, STATE GRID SHANDONG ELECTRIC POWER Co. Patentee after: JINAN VOCATIONAL College OF NURSING Patentee after: Shandong United Power Industry Development Co.,Ltd. Address before: Room 118, No. 68 zhudian Road, Licheng District, Jinan, Shandong Province, 250100 Patentee before: Liyuan branch of Jinan Luyuan Electric Group Co.,Ltd. Patentee before: JINAN LICHENG DISTRICT POWER SUPPLY COMPANY, STATE GRID SHANDONG ELECTRIC POWER Co. Patentee before: JINAN VOCATIONAL College OF NURSING Patentee before: SHANDONG LIANHE POWER TECHNOLOGY Co.,Ltd. Effective date of registration: 20200925 Address after: Room 118, No. 68 zhudian Road, Licheng District, Jinan, Shandong Province, 250100 Patentee after: Liyuan branch of Jinan Luyuan Electric Group Co.,Ltd. Patentee after: JINAN LICHENG DISTRICT POWER SUPPLY COMPANY, STATE GRID SHANDONG ELECTRIC POWER Co. Patentee after: JINAN VOCATIONAL College OF NURSING Patentee after: SHANDONG LIANHE POWER TECHNOLOGY CO.,LTD. Address before: 250100 Shandong city of Ji'nan province Zhong Gong Zhen high office building room 307 Patentee before: JINAN LIYUAN INDUSTRIAL Co.,Ltd. Patentee before: JINAN LICHENG DISTRICT POWER SUPPLY COMPANY, STATE GRID SHANDONG ELECTRIC POWER Co. Patentee before: JINAN VOCATIONAL College OF NURSING Patentee before: SHANDONG LIANHE POWER TECHNOLOGY Co.,Ltd. |