CN105140881A - 差动保护方法、系统和设备 - Google Patents
差动保护方法、系统和设备 Download PDFInfo
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- CN105140881A CN105140881A CN201510601720.8A CN201510601720A CN105140881A CN 105140881 A CN105140881 A CN 105140881A CN 201510601720 A CN201510601720 A CN 201510601720A CN 105140881 A CN105140881 A CN 105140881A
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- differential protection
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- 230000004224 protection Effects 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000008859 change Effects 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims description 32
- 230000004044 response Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000004891 communication Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
Description
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510601720.8A CN105140881B (zh) | 2007-10-25 | 2007-10-25 | 差动保护方法、系统和设备 |
Applications Claiming Priority (2)
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CN201510601720.8A CN105140881B (zh) | 2007-10-25 | 2007-10-25 | 差动保护方法、系统和设备 |
CN200780100583A CN101803136A (zh) | 2007-10-25 | 2007-10-25 | 差动保护方法、系统和设备 |
Related Parent Applications (1)
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CN200780100583A Division CN101803136A (zh) | 2007-10-25 | 2007-10-25 | 差动保护方法、系统和设备 |
Publications (2)
Publication Number | Publication Date |
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CN105140881A true CN105140881A (zh) | 2015-12-09 |
CN105140881B CN105140881B (zh) | 2019-04-16 |
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CN201510601720.8A Active CN105140881B (zh) | 2007-10-25 | 2007-10-25 | 差动保护方法、系统和设备 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107167884A (zh) * | 2017-06-29 | 2017-09-15 | 山东海富光子科技股份有限公司 | 一种光路差动保护系统及方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1560973A (zh) * | 2004-03-08 | 2005-01-05 | 肖孚云 | 一种电力网络保护的方法 |
CN1581625A (zh) * | 2004-04-13 | 2005-02-16 | 贺家李 | 输电线微机自适应分相纵差保护方法 |
CN1787316A (zh) * | 2005-11-18 | 2006-06-14 | 北京交通大学 | 利用同侧电流流向变化实现方向保护的方法 |
EP1696531A2 (en) * | 2005-02-22 | 2006-08-30 | AREVA T&D UK Ltd. | A method and an apparatus for supervising the operation of current transformers of a protection relay |
-
2007
- 2007-10-25 CN CN201510601720.8A patent/CN105140881B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1560973A (zh) * | 2004-03-08 | 2005-01-05 | 肖孚云 | 一种电力网络保护的方法 |
CN1581625A (zh) * | 2004-04-13 | 2005-02-16 | 贺家李 | 输电线微机自适应分相纵差保护方法 |
EP1696531A2 (en) * | 2005-02-22 | 2006-08-30 | AREVA T&D UK Ltd. | A method and an apparatus for supervising the operation of current transformers of a protection relay |
CN1787316A (zh) * | 2005-11-18 | 2006-06-14 | 北京交通大学 | 利用同侧电流流向变化实现方向保护的方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107167884A (zh) * | 2017-06-29 | 2017-09-15 | 山东海富光子科技股份有限公司 | 一种光路差动保护系统及方法 |
CN107167884B (zh) * | 2017-06-29 | 2019-01-25 | 山东海富光子科技股份有限公司 | 一种光路差动保护系统及方法 |
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Publication number | Publication date |
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CN105140881B (zh) | 2019-04-16 |
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Effective date of registration: 20180522 Address after: Baden, Switzerland Applicant after: ABB Switzerland Co.,Ltd. Address before: Su Lishi Applicant before: ABB TECHNOLOGY Ltd. |
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Effective date of registration: 20210521 Address after: Baden, Switzerland Patentee after: ABB grid Switzerland AG Address before: Baden, Switzerland Patentee before: ABB Switzerland Co.,Ltd. |
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Address after: Swiss Baden Patentee after: Hitachi energy Switzerland AG Address before: Swiss Baden Patentee before: ABB grid Switzerland AG |
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TR01 | Transfer of patent right |
Effective date of registration: 20240104 Address after: Zurich, SUI Patentee after: Hitachi Energy Co.,Ltd. Address before: Swiss Baden Patentee before: Hitachi energy Switzerland AG |
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