SE8704424L - Laengsdifferentialskydd - Google Patents

Laengsdifferentialskydd

Info

Publication number
SE8704424L
SE8704424L SE8704424A SE8704424A SE8704424L SE 8704424 L SE8704424 L SE 8704424L SE 8704424 A SE8704424 A SE 8704424A SE 8704424 A SE8704424 A SE 8704424A SE 8704424 L SE8704424 L SE 8704424L
Authority
SE
Sweden
Prior art keywords
protective
residuals
local
protective relays
relay
Prior art date
Application number
SE8704424A
Other languages
Unknown language ( )
English (en)
Other versions
SE459706B (sv
SE8704424D0 (sv
Inventor
S Bergman
S Ljung
Original Assignee
Asea Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asea Ab filed Critical Asea Ab
Priority to SE8704424A priority Critical patent/SE459706B/sv
Publication of SE8704424D0 publication Critical patent/SE8704424D0/sv
Priority to US07/262,742 priority patent/US4855861A/en
Priority to EP88118730A priority patent/EP0315983B1/en
Priority to DE8888118730T priority patent/DE3871335D1/de
Priority to ES198888118730T priority patent/ES2032933T3/es
Publication of SE8704424L publication Critical patent/SE8704424L/sv
Publication of SE459706B publication Critical patent/SE459706B/sv

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

Landscapes

  • Emergency Protection Circuit Devices (AREA)
SE8704424A 1987-11-12 1987-11-12 Laengsdifferentialskydd SE459706B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8704424A SE459706B (sv) 1987-11-12 1987-11-12 Laengsdifferentialskydd
US07/262,742 US4855861A (en) 1987-11-12 1988-10-26 Longitudinal differential protection
EP88118730A EP0315983B1 (en) 1987-11-12 1988-11-10 Longitudinal differential protection system
DE8888118730T DE3871335D1 (de) 1987-11-12 1988-11-10 Laengsvergleichsschutzsystem.
ES198888118730T ES2032933T3 (es) 1987-11-12 1988-11-10 Sistema de proteccion diferencial longitudinal.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8704424A SE459706B (sv) 1987-11-12 1987-11-12 Laengsdifferentialskydd

Publications (3)

Publication Number Publication Date
SE8704424D0 SE8704424D0 (sv) 1987-11-12
SE8704424L true SE8704424L (sv) 1989-05-13
SE459706B SE459706B (sv) 1989-07-24

Family

ID=20370195

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8704424A SE459706B (sv) 1987-11-12 1987-11-12 Laengsdifferentialskydd

Country Status (5)

Country Link
US (1) US4855861A (sv)
EP (1) EP0315983B1 (sv)
DE (1) DE3871335D1 (sv)
ES (1) ES2032933T3 (sv)
SE (1) SE459706B (sv)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
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
DE602004023614D1 (de) * 2003-07-09 2009-11-26 Isra Juk Electronics Ltd System und verfahren zur erkennung elektrischer fehler
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
EP2160809A1 (de) * 2007-06-27 2010-03-10 Siemens Aktiengesellschaft Verfahren zum erhöhen der empfindlichkeit eines differentialschutzsystems
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
EP2693586B1 (en) * 2012-07-31 2016-04-06 ABB Research Ltd. Clock synchronization for line differential protection
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ES2032933T3 (es) 1993-03-01
EP0315983B1 (en) 1992-05-20
EP0315983A1 (en) 1989-05-17
US4855861A (en) 1989-08-08
SE459706B (sv) 1989-07-24
SE8704424D0 (sv) 1987-11-12
DE3871335D1 (de) 1992-06-25

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