DE3880471D1 - Schutzrelais mit selektiver phasenwahl fuer doppelte energie-uebertragungsleitungen. - Google Patents
Schutzrelais mit selektiver phasenwahl fuer doppelte energie-uebertragungsleitungen.Info
- Publication number
- DE3880471D1 DE3880471D1 DE8888121660T DE3880471T DE3880471D1 DE 3880471 D1 DE3880471 D1 DE 3880471D1 DE 8888121660 T DE8888121660 T DE 8888121660T DE 3880471 T DE3880471 T DE 3880471T DE 3880471 D1 DE3880471 D1 DE 3880471D1
- Authority
- DE
- Germany
- Prior art keywords
- transmission lines
- energy transmission
- protective relay
- selective phase
- double energy
- 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
- H02H7/261—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 involving signal transmission between at least two stations
-
- 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
- H02H7/267—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 for parallel lines and wires
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8705183A SE459946B (sv) | 1987-12-29 | 1987-12-29 | Relaeskydd med selektivt fasval foer dubbelledningar |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3880471D1 true DE3880471D1 (de) | 1993-05-27 |
DE3880471T2 DE3880471T2 (de) | 1993-11-04 |
Family
ID=20370733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE88121660T Expired - Fee Related DE3880471T2 (de) | 1987-12-29 | 1988-12-24 | Schutzrelais mit selektiver phasenwahl fuer doppelte energie-uebertragungsleitungen. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4864453A (de) |
EP (1) | EP0325786B1 (de) |
CA (1) | CA1312941C (de) |
DE (1) | DE3880471T2 (de) |
SE (1) | SE459946B (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6567256B1 (en) * | 1993-08-06 | 2003-05-20 | Schweitzer Engineering Labs, Inc. | Dual protective relay for power systems |
US5512832A (en) * | 1993-10-15 | 1996-04-30 | The Texas A & M University System | Energy analysis fault detection system |
US5659453A (en) * | 1993-10-15 | 1997-08-19 | Texas A&M University | Arc burst pattern analysis fault detection system |
US5600526A (en) * | 1993-10-15 | 1997-02-04 | The Texas A & M University System | Load analysis system for fault detection |
US5578931A (en) * | 1993-10-15 | 1996-11-26 | The Texas A & M University System | ARC spectral analysis system |
US5506789A (en) * | 1993-10-15 | 1996-04-09 | The Texas A & M University System | Load extraction fault detection system |
US5485093A (en) * | 1993-10-15 | 1996-01-16 | The Texas A & M University System | Randomness fault detection system |
US5550751A (en) * | 1993-10-15 | 1996-08-27 | The Texas A & M University System | Expert system for detecting high impedance faults |
GB2288930B (en) * | 1994-04-25 | 1998-01-21 | Gec Alsthom Ltd | Methods and apparatus for identifying faulted phases on an electric power transmission line |
JP3456952B2 (ja) * | 2000-06-28 | 2003-10-14 | 株式会社東芝 | ディジタル形距離継電器 |
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 |
CN100424953C (zh) * | 2004-10-14 | 2008-10-08 | 南京南瑞继保电气有限公司 | 一种输电线路的重合闸方法 |
US7476891B2 (en) | 2006-03-24 | 2009-01-13 | Ics Triplex Technology, Ltd. | Fault detection method and apparatus |
DE602006013783D1 (de) * | 2006-03-24 | 2010-06-02 | Ics Triplex Technology Ltd | Netzfrequenzsynchronisierung |
US7504975B2 (en) | 2006-03-24 | 2009-03-17 | Ics Triplex Technology Limited | Method and apparatus for output current control |
US8166362B2 (en) | 2006-03-24 | 2012-04-24 | Rockwell Automation Limited | Fault detection method and apparatus for analog to digital converter circuits |
US7729098B2 (en) | 2006-03-24 | 2010-06-01 | Ics Triplex Technology Limited | Overload protection method |
US7688560B2 (en) | 2006-03-24 | 2010-03-30 | Ics Triplex Technology Limited | Overload protection method |
US7747405B2 (en) | 2006-03-24 | 2010-06-29 | Ics Triplex Technology Ltd. | Line frequency synchronization |
US7613974B2 (en) | 2006-03-24 | 2009-11-03 | Ics Triplex Technology Limited | Fault detection method and apparatus |
US7483803B2 (en) * | 2006-08-11 | 2009-01-27 | Apple Inc. | Methods and apparatuses for calibrating sensors |
Family Cites Families (13)
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 |
FR2418560A1 (fr) * | 1978-02-23 | 1979-09-21 | Enertec | Detection de la position d'un defaut sur une ligne electrique |
US4261038A (en) * | 1978-02-28 | 1981-04-07 | National Research Development Corporation | Protection of electrical power supply systems |
US4321681A (en) * | 1979-09-21 | 1982-03-23 | Westinghouse Electric Corp. | Protective relay apparatus |
US4319329A (en) * | 1980-02-21 | 1982-03-09 | Iowa State University Research Foundation, Inc. | Frequency measuring and monitoring apparatus, methods and systems |
US4466071A (en) * | 1981-09-28 | 1984-08-14 | Texas A&M University System | High impedance fault detection apparatus and method |
US4617636A (en) * | 1982-03-03 | 1986-10-14 | National Research Development Corporation | Protection of electrical power supply systems |
US4625283A (en) * | 1982-05-07 | 1986-11-25 | Cooper Industries, Inc. | Method and apparatus for digitally measuring alternating current |
JPS6039312A (ja) * | 1983-08-10 | 1985-03-01 | 株式会社東芝 | 保護継電装置 |
SE441138B (sv) * | 1984-02-01 | 1985-09-09 | Asea Ab | Digitalt impedansrele |
JPH0828934B2 (ja) * | 1984-07-31 | 1996-03-21 | 株式会社東芝 | 保護制御装置 |
FR2590992B1 (fr) * | 1985-12-04 | 1988-03-04 | Enertec | Procede et dispositif de discrimination d'un conducteur en defaut dans une ligne multiple |
US4795983A (en) * | 1988-03-07 | 1989-01-03 | Westinghouse Electric Corp. | Method and apparatus for identifying a faulted phase |
-
1987
- 1987-12-29 SE SE8705183A patent/SE459946B/sv not_active IP Right Cessation
-
1988
- 1988-12-19 US US07/286,141 patent/US4864453A/en not_active Expired - Fee Related
- 1988-12-24 EP EP88121660A patent/EP0325786B1/de not_active Expired - Lifetime
- 1988-12-24 DE DE88121660T patent/DE3880471T2/de not_active Expired - Fee Related
- 1988-12-28 CA CA000587074A patent/CA1312941C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0325786A1 (de) | 1989-08-02 |
US4864453A (en) | 1989-09-05 |
SE459946B (sv) | 1989-08-21 |
DE3880471T2 (de) | 1993-11-04 |
CA1312941C (en) | 1993-01-19 |
EP0325786B1 (de) | 1993-04-21 |
SE8705183L (sv) | 1989-06-30 |
SE8705183D0 (sv) | 1987-12-29 |
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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 |