DE3871335D1 - Laengsvergleichsschutzsystem. - Google Patents
Laengsvergleichsschutzsystem.Info
- Publication number
- DE3871335D1 DE3871335D1 DE8888118730T DE3871335T DE3871335D1 DE 3871335 D1 DE3871335 D1 DE 3871335D1 DE 8888118730 T DE8888118730 T DE 8888118730T DE 3871335 T DE3871335 T DE 3871335T DE 3871335 D1 DE3871335 D1 DE 3871335D1
- Authority
- DE
- Germany
- Prior art keywords
- protection system
- length comparison
- comparison protection
- length
- protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8704424A SE459706B (sv) | 1987-11-12 | 1987-11-12 | Laengsdifferentialskydd |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3871335D1 true DE3871335D1 (de) | 1992-06-25 |
Family
ID=20370195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888118730T Expired - Fee Related DE3871335D1 (de) | 1987-11-12 | 1988-11-10 | Laengsvergleichsschutzsystem. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4855861A (de) |
EP (1) | EP0315983B1 (de) |
DE (1) | DE3871335D1 (de) |
ES (1) | ES2032933T3 (de) |
SE (1) | SE459706B (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5202812A (en) * | 1988-09-21 | 1993-04-13 | Ngk Insulators, Ltd. | Apparatus for detecting faults on power transmission lines |
US4972290A (en) * | 1989-09-29 | 1990-11-20 | Abb Power T & D Company Inc. | Electric power system with remote monitoring and control of protective relays |
SE469615B (sv) * | 1991-12-20 | 1993-08-02 | Asea Brown Boveri | Foerfarande och anordning foer att detektera ett oeverslag mellan ledare i kraftoeverfoeringslinjer med olika spaenningsnivaaer |
SE469735B (sv) * | 1992-02-12 | 1993-08-30 | Asea Brown Boveri | Foerfarande foer att foerhindra oeverstabilisering av laengsdifferentialskydd vid inre fel paa kraftlinjer samt anordning foer genomfoerande av det naemnda foerfarandet |
FR2690573B1 (fr) * | 1992-04-28 | 1997-05-09 | Merlin Gerin | Dispositif de controle de defaut homopolaire dans un reseau de distribution electrique. |
JPH06225448A (ja) * | 1992-12-04 | 1994-08-12 | Fuji Electric Co Ltd | 母線保護方法 |
US5576625A (en) * | 1994-02-07 | 1996-11-19 | Kabushiki Kaisha Toshiba | Test method and apparatus for testing a protective relay system |
GB2288930B (en) * | 1994-04-25 | 1998-01-21 | Gec Alsthom Ltd | Methods and apparatus for identifying faulted phases on an electric power transmission line |
DE4430246C2 (de) * | 1994-08-25 | 1997-08-28 | Siemens Ag | Verfahren und Anordnung zum Überwachen von Stromversorgungsnetzen |
US20030002576A1 (en) * | 2001-06-29 | 2003-01-02 | Whitehead David E. | Apparatus and method for compression of data in protection and control communications between protective relays in a power system |
US6686857B2 (en) * | 2002-03-14 | 2004-02-03 | Abb Inc. | Information dependent data transmission for pilot protective relays |
DE10237342B4 (de) * | 2002-08-14 | 2004-07-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zur Fehlerstromüberwachung in einem elektrischen Wechselstromnetz |
WO2005006363A2 (en) * | 2003-07-09 | 2005-01-20 | Isra-Juk Electronics Ltd | System, apparatus and method for detection of electrical faults |
CN100375357C (zh) * | 2005-10-26 | 2008-03-12 | 许继集团有限公司 | 输电线纵差保护中的双端测试方法 |
US20080272257A1 (en) * | 2007-05-04 | 2008-11-06 | Gordon Murphy | Hanger with decorative flange |
US8271214B2 (en) * | 2007-06-27 | 2012-09-18 | Siemens Aktiengesellschaft | Method for increasing the sensitivity of a differential protection system |
CN101651324B (zh) * | 2009-06-08 | 2012-09-05 | 国电南瑞科技股份有限公司 | 基于同步采样点向量补偿原理的纵联差动保护方法 |
US8634175B2 (en) * | 2011-04-13 | 2014-01-21 | Siemens Industry, Inc. | Method and system for programming and implementing automated fault isolation and restoration using sequential logic |
US9350163B2 (en) * | 2011-10-19 | 2016-05-24 | General Electric Company | Inter-area oscillation detection |
CN102570419B (zh) * | 2011-12-28 | 2014-04-23 | 西安交通大学 | 一种基于电流量的输电线路纵联保护方法 |
ES2572956T3 (es) * | 2012-07-31 | 2016-06-03 | Abb Research Ltd. | Sincronización de relojes para protección diferencial de línea |
US9746511B2 (en) * | 2015-11-25 | 2017-08-29 | Hitachi, Ltd. | Estimating the locations of power system events using PMU measurements |
CN109116186A (zh) * | 2018-08-10 | 2019-01-01 | 重庆邮电大学 | 一种基于单端行波法和固有频率法的单端故障测距方法 |
CN111641196A (zh) * | 2020-05-28 | 2020-09-08 | 上海电机学院 | 一种基于支路电流特性的高压直流线路纵联保护方法 |
CN112421566B (zh) * | 2020-11-10 | 2022-06-17 | 北京博阳慧源电力科技有限公司 | 一种基于以太网精密时间协议的纵联差动保护方法 |
CN114006360B (zh) * | 2021-11-23 | 2024-03-29 | 国网江苏省电力有限公司无锡供电分公司 | 基于无线通信的自适应变频流量控制差动保护方法及系统 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4148087A (en) * | 1977-04-20 | 1979-04-03 | Phadke Arun G | Distance relay for electric power transmission lines |
US4261038A (en) * | 1978-02-28 | 1981-04-07 | National Research Development Corporation | Protection of electrical power supply systems |
SE442920B (sv) * | 1984-06-15 | 1986-02-03 | Asea Ab | Forfarande och anordning for detektering och lokalisering av ett felstelle pa en kraftledning |
GB8509422D0 (en) * | 1985-04-12 | 1985-05-15 | Gen Electric Co Plc | Relays |
SE452533B (sv) * | 1986-04-08 | 1987-11-30 | Asea Ab | Forfarande for riktningsdetektering av fel pa en kraftledning samt anordning for genomforande av det nemnda forfarandet |
-
1987
- 1987-11-12 SE SE8704424A patent/SE459706B/sv not_active IP Right Cessation
-
1988
- 1988-10-26 US US07/262,742 patent/US4855861A/en not_active Expired - Fee Related
- 1988-11-10 DE DE8888118730T patent/DE3871335D1/de not_active Expired - Fee Related
- 1988-11-10 EP EP88118730A patent/EP0315983B1/de not_active Expired
- 1988-11-10 ES ES198888118730T patent/ES2032933T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0315983A1 (de) | 1989-05-17 |
SE459706B (sv) | 1989-07-24 |
SE8704424D0 (sv) | 1987-11-12 |
EP0315983B1 (de) | 1992-05-20 |
US4855861A (en) | 1989-08-08 |
SE8704424L (sv) | 1989-05-13 |
ES2032933T3 (es) | 1993-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |