ZA827239B - Protective relaying methods and apparatus - Google Patents

Protective relaying methods and apparatus

Info

Publication number
ZA827239B
ZA827239B ZA827239A ZA827239A ZA827239B ZA 827239 B ZA827239 B ZA 827239B ZA 827239 A ZA827239 A ZA 827239A ZA 827239 A ZA827239 A ZA 827239A ZA 827239 B ZA827239 B ZA 827239B
Authority
ZA
South Africa
Prior art keywords
protective relaying
relaying methods
methods
protective
relaying
Prior art date
Application number
ZA827239A
Other languages
English (en)
Inventor
Walter Alcorn Elmore
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ZA827239B publication Critical patent/ZA827239B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/16—Measuring asymmetry of polyphase networks
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
    • H02H3/385—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current using at least one homopolar quantity
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/40—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to ratio of voltage and current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
ZA827239A 1981-11-13 1982-10-01 Protective relaying methods and apparatus ZA827239B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/321,158 US4398232A (en) 1981-11-13 1981-11-13 Protective relaying methods and apparatus

Publications (1)

Publication Number Publication Date
ZA827239B true ZA827239B (en) 1983-10-26

Family

ID=23249444

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA827239A ZA827239B (en) 1981-11-13 1982-10-01 Protective relaying methods and apparatus

Country Status (9)

Country Link
US (1) US4398232A (es)
EP (1) EP0079504A1 (es)
JP (1) JPS5889028A (es)
AU (1) AU560005B2 (es)
BR (1) BR8205988A (es)
CA (1) CA1187555A (es)
ES (1) ES517308A0 (es)
MX (1) MX156810A (es)
ZA (1) ZA827239B (es)

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US4525665A (en) * 1982-08-06 1985-06-25 Smalley Daniel S Induction furnace monitor
US4612498A (en) * 1982-08-06 1986-09-16 Smalley Daniel S Induction furnace fault locator
US4536815A (en) * 1983-08-29 1985-08-20 Westinghouse Electric Corp. Protective relay apparatus and method for providing single-pole tripping
US4942505A (en) * 1984-09-06 1990-07-17 Mag Instrument, Inc. Miniature flashlight
US5806964A (en) 1984-09-06 1998-09-15 Mag Instrument, Inc. Miniature flashlight
US5293307A (en) * 1984-09-06 1994-03-08 Mag Instrument, Inc. Miniature flashlight
US4899265A (en) * 1984-09-06 1990-02-06 Mag Instrument, Inc. Miniature flashlight
JPH0626454B2 (ja) * 1986-11-20 1994-04-06 四国電力株式会社 地絡母線保護継電装置
US4725914A (en) * 1986-12-16 1988-02-16 Westinghouse Electric Corp. Protective relay system for performing selective-pole trip determination
FR2610115B1 (fr) * 1987-01-22 1989-04-28 Enertec Procede et dispositif pour la recherche de conducteurs en defaut dans une ligne electrique
US4819119A (en) * 1987-11-12 1989-04-04 General Electric Company Faulted phase selector for single pole tripping and reclosing schemes
US4795983A (en) * 1988-03-07 1989-01-03 Westinghouse Electric Corp. Method and apparatus for identifying a faulted phase
US5126927A (en) * 1988-03-31 1992-06-30 The Brinkmann Corporation Flashlight having improved bulb enclosure
US5218307A (en) * 1990-11-02 1993-06-08 Alcan Aluminum Corporation Fault detection circuit and method for testing a multiple conductor cable having a shield
FR2671635B1 (fr) * 1991-01-10 1994-12-02 Soule Sa Systeme d'analyse des courants de defauts sur les lignes aeriennes, notamment les lignes aeriennes moyenne tension.
US5576618A (en) * 1994-10-20 1996-11-19 Abb Power T&D Company, Inc. Process and apparatus for comparing in real time phase differences between phasors
DE4439499C2 (de) * 1994-10-27 1998-01-29 Siemens Ag Verfahren zum Erfassen eines Erdkurzschlusses auf einer elektrischen Energieübertragungsleitung
FR2731077B1 (fr) * 1995-02-23 1997-05-23 Sarl Digital Way Dispositif de mesure des parametres d'un reseau triphase
AT404072B (de) * 1995-02-28 1998-08-25 Haefely Trench Austria Gmbh Verfahren zur erkennung eines einpoligen erdschlusses in einem drehstromnetz
US5742513A (en) * 1996-05-15 1998-04-21 Abb Power T&D Company Inc. Methods and systems for automatic testing of a relay
FR2751801B1 (fr) * 1996-07-26 1998-08-28 Electricite De France Procede de maintien de la fourniture en energie electrique dans un reseau de distribution d'energie electrique polyphasee et dispositif pour la mise en oeuvre d'un tel procede
US5959819A (en) * 1998-03-16 1999-09-28 Eaton Corporation Reliable fault tolerant power supply for a protective relay
WO2002051287A2 (en) 2000-12-22 2002-07-04 Hill-Rom Services, Inc. Infant rocking apparatus
KR100390547B1 (ko) * 2001-03-31 2003-07-07 한국전기연구원 송전선로용 차단기의 투입 제어방법
US6722772B2 (en) * 2001-08-16 2004-04-20 Mag Instrument, Inc. Flashlight and combination for use in aligning flashlight lamp bulbs
US6741943B2 (en) * 2001-09-13 2004-05-25 Abb Power Automation Ltd. Crossover fault classification for power lines with parallel circuits
US6760670B2 (en) * 2001-09-13 2004-07-06 Abb Power Automation Ltd. Crossover fault classification for power lines with parallel circuits
US6721670B2 (en) 2001-09-13 2004-04-13 Abb Power Automation Ltd. Crossover fault classification for power lines with parallel circuits
US6738719B2 (en) 2001-09-13 2004-05-18 Abb Power Automation Ltd. Crossover fault classification for power lines with parallel circuits
SE0303615D0 (sv) * 2003-12-31 2003-12-31 Abb Ab Method and device for Fault Detection in Transformers
US7264372B2 (en) * 2004-03-16 2007-09-04 Mag Instrument, Inc. Apparatus and method for aligning a substantial point source of light with a reflector feature
FI117356B (fi) * 2004-06-23 2006-09-15 Abb Oy Menetelmä ja järjestelmä viallisen vaiheen tunnistamiseksi
US7723921B2 (en) 2004-12-07 2010-05-25 West Stacey H Circuitry for portable lighting devices and portable rechargeable electronic devices
US7579782B2 (en) * 2004-12-07 2009-08-25 Mag Instrument, Inc. Circuitry for portable lighting devices and portable rechargeable electronic devices
US20070002596A1 (en) * 2005-06-29 2007-01-04 Eaton Corporation Two-stage, wide range power supply for a network protector control relay
FI120565B (fi) * 2007-12-20 2009-11-30 Abb Oy Menetelmä ja laitteisto maasulun havaitsemiseen
TWM338326U (en) * 2008-03-19 2008-08-11 Unity Opto Technology Co Ltd Adjustable type lamp
FR2930041B1 (fr) * 2008-04-11 2010-07-30 Ece Dispositif de detection d'un defaut electrique dans un reseau alternatif.
JP5361305B2 (ja) * 2008-09-18 2013-12-04 株式会社東芝 送電線路の再閉路方式
US8169165B2 (en) 2009-01-14 2012-05-01 Mag Instrument, Inc. Multi-mode portable lighting device
US8366290B2 (en) * 2009-01-14 2013-02-05 Mag Instrument, Inc. Portable lighting device
EP2541263A1 (en) * 2011-07-01 2013-01-02 Siemens Aktiengesellschaft Fault detection system and method, and power system for subsea pipeline direct electrical heating cables
US8827017B2 (en) 2012-03-30 2014-09-09 Thermo King Corporation Vehicle or environment-controlled unit having a multiphase alternator with a protected high-voltage bus
CN103048502B (zh) * 2012-12-11 2015-04-29 国网智能电网研究院 一种可关断器件阀稳态运行试验装置的控制保护系统
CN103823153B (zh) * 2014-03-12 2017-01-11 中国电建集团中南勘测设计研究院有限公司 一种35kV配网单相接地故障类型判断装置
DE112018004917T5 (de) * 2017-08-30 2020-06-04 Quanten Technologies Inc. Motorsystem und Steuerungsverfahren
CN111480275B (zh) 2017-12-20 2022-12-30 日立能源瑞士股份公司 输电线路的基于零序电流的差动保护
CN109842343B (zh) * 2019-02-18 2020-09-25 清华大学 基于十二相电机的飞轮储能系统容错运行控制方法及装置
CN111025085B (zh) * 2019-12-20 2020-12-22 华南理工大学 基于线电压增大量的单相故障选相方法、装置及存储介质
US11159010B1 (en) * 2020-05-19 2021-10-26 Russell W. Patterson Apparatus and method for producing negative sequence current
RU2738469C1 (ru) * 2020-05-26 2020-12-14 Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования «Новосибирский Государственный Технический Университет» Способ определения фидера с однофазным замыканием на землю в трехфазных электрических сетях с неэффективно заземленной нейтралью
AU2021212036B1 (en) * 2021-05-06 2021-10-21 Russell Patterson Apparatus and method for producing negative sequence current

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3377551A (en) * 1964-06-26 1968-04-09 Gen Electric Multiphase current transformer fault indicator
AU426585B2 (en) * 1971-09-02 1972-07-27 The Council Ofthe City Ofthe Blue Mountains Fault detector for h. v. transmission lines
GB1422346A (es) * 1972-11-28 1976-01-28
US3924160A (en) * 1973-09-28 1975-12-02 Westinghouse Electric Corp Circuit breaker with detachably connected fault simulator
US3959695A (en) * 1975-04-29 1976-05-25 Westinghouse Electric Corporation Circuit interrupter with ground fault trip control
JPS5268938A (en) * 1975-12-05 1977-06-08 Hitachi Ltd One line earth ground trouble detecting relay
JPS53130078A (en) * 1977-04-19 1978-11-13 Kansai Electric Power Co Inc:The Ground-fault phase detecting relay
US4146913A (en) * 1977-12-30 1979-03-27 Westinghouse Electric Corp. Symmetrical component sequence filter

Also Published As

Publication number Publication date
MX156810A (es) 1988-10-05
JPS5889028A (ja) 1983-05-27
AU560005B2 (en) 1987-03-26
ES8402429A1 (es) 1984-01-16
AU8896882A (en) 1983-05-19
EP0079504A1 (en) 1983-05-25
US4398232A (en) 1983-08-09
CA1187555A (en) 1985-05-21
BR8205988A (pt) 1983-09-13
ES517308A0 (es) 1984-01-16

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