IN157698B - - Google Patents

Info

Publication number
IN157698B
IN157698B IN239/DEL/82A IN239DE1982A IN157698B IN 157698 B IN157698 B IN 157698B IN 239DE1982 A IN239DE1982 A IN 239DE1982A IN 157698 B IN157698 B IN 157698B
Authority
IN
India
Application number
IN239/DEL/82A
Other languages
English (en)
Inventor
Yo Ming Ko
Keith Cornick
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IN157698B publication Critical patent/IN157698B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
    • 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
    • H02H7/265—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 making use of travelling wave theory

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Locating Faults (AREA)
IN239/DEL/82A 1981-04-03 1982-03-23 IN157698B (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8110508 1981-04-03

Publications (1)

Publication Number Publication Date
IN157698B true IN157698B (ja) 1986-05-17

Family

ID=10520902

Family Applications (1)

Application Number Title Priority Date Filing Date
IN239/DEL/82A IN157698B (ja) 1981-04-03 1982-03-23

Country Status (6)

Country Link
US (1) US4500834A (ja)
EP (1) EP0062446B1 (ja)
AU (1) AU552086B2 (ja)
DE (1) DE3271523D1 (ja)
IN (1) IN157698B (ja)
ZA (1) ZA821989B (ja)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499417A (en) * 1981-10-27 1985-02-12 General Electric Company P.L.C. Determining location of faults in power transmission lines
DE3375843D1 (en) * 1983-12-28 1988-04-07 Ibm Electrical-diagnosis method for a defect cell in a chain of cells of a shift register
SE442920B (sv) * 1984-06-15 1986-02-03 Asea Ab Forfarande och anordning for detektering och lokalisering av ett felstelle pa en kraftledning
US4851782A (en) * 1987-01-15 1989-07-25 Jeerings Donald I High impedance fault analyzer in electric power distribution
JP2659797B2 (ja) * 1989-04-19 1997-09-30 株式会社東芝 Ｌａｎにおける故障箇所検出装置
GB2242324B (en) * 1990-03-22 1993-09-22 Stc Plc Fault location.
US5206595A (en) * 1991-09-10 1993-04-27 Electric Power Research Institute Advanced cable fault location
US5206600A (en) * 1991-10-18 1993-04-27 Harris Corporation Impedance determining apparatus using quadrature current and peak detectors
US5386194A (en) * 1991-10-18 1995-01-31 Harris Corporation Digital impedance determination using peak detection of current and voltage samplers
US5416418A (en) * 1993-08-02 1995-05-16 Electric Power Research Institute, Inc. Method and apparatus for determining partial discharge sites in cables
US5430383A (en) * 1994-03-03 1995-07-04 Vlsi Technology, Inc. Method for measuring capacitive loads
US5682100A (en) * 1995-09-06 1997-10-28 Electric Power Research Institute Inc. System and method for locating faults in electric power cables
US6798211B1 (en) 1997-10-30 2004-09-28 Remote Monitoring Systems, Inc. Power line fault detector and analyzer
US6265880B1 (en) * 1999-06-15 2001-07-24 The United States Of America As Represented By The Secretary Of The Air Force Apparatus and method for detecting conduit chafing
GB0027235D0 (en) * 2000-11-07 2000-12-27 Smiths Industries Plc Arc location
US6691051B2 (en) * 2001-08-14 2004-02-10 Tektronix, Inc. Transient distance to fault measurement
CA2417485C (en) * 2002-01-29 2010-08-17 Kuraray Co., Ltd. Thermoplastic polyurethane composition and process for producing the same
US7535233B2 (en) 2004-07-15 2009-05-19 Cooper Technologies Company Traveling wave based relay protection
CN102891702B (zh) * 2012-10-15 2015-04-08 华为技术有限公司 一种诊断线缆的方法及装置
WO2017049224A1 (en) * 2015-09-18 2017-03-23 Schweitzer Engineering Laboratories, Inc. Time-domain line protection of electric power delivery systems
EP3362805A4 (en) 2015-10-13 2019-06-19 Schweitzer Engineering Laboratories, Inc. MONITORING POWER SUPPLY SYSTEM USING HIGH FREQUENCY SIGNALS
GB2545646B (en) * 2015-12-17 2019-05-15 General Electric Technology Gmbh A method of locating a fault in a power transmission medium
US10677834B2 (en) 2018-09-14 2020-06-09 Schweitzer Engineering Laboratories, Inc. Distance protection of electric power delivery systems using time domain and frequency domain
US10641815B2 (en) 2018-09-27 2020-05-05 Schweitzer Engineering Laboratories, Inc. Secure distance protection of electric power delivery systems under transient conditions
US11735907B2 (en) 2021-02-03 2023-08-22 Schweitzer Engineering Laboratories, Inc. Traveling wave overcurrent protection for electric power delivery systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628267A (en) * 1949-03-31 1953-02-10 Theodore W Stringfield Electric line fault locators
CH565468A5 (ja) * 1973-01-31 1975-08-15 Bbc Brown Boveri & Cie
CH574181A5 (ja) * 1974-07-08 1976-03-31 Bbc Brown Boveri & Cie
CH610154A5 (ja) * 1975-04-28 1979-03-30 Bbc Brown Boveri & Cie
DE2953266A1 (de) * 1978-05-31 1980-11-27 Bicc Ltd Verfahren und vorrichtung zum ermitteln und lokalisieren von fehlern in elektrischen kabeln

Also Published As

Publication number Publication date
EP0062446B1 (en) 1986-06-04
ZA821989B (en) 1983-02-23
DE3271523D1 (en) 1986-07-10
AU8223782A (en) 1982-10-07
US4500834A (en) 1985-02-19
AU552086B2 (en) 1986-05-22
EP0062446A1 (en) 1982-10-13

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