JPS5497748A - Protective relay - Google Patents

Protective relay

Info

Publication number
JPS5497748A
JPS5497748A JP106879A JP106879A JPS5497748A JP S5497748 A JPS5497748 A JP S5497748A JP 106879 A JP106879 A JP 106879A JP 106879 A JP106879 A JP 106879A JP S5497748 A JPS5497748 A JP S5497748A
Authority
JP
Japan
Prior art keywords
protective relay
relay
protective
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.)
Pending
Application number
JP106879A
Other languages
English (en)
Inventor
Aanesuto Hagubaagu Jiyon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
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 JPS5497748A publication Critical patent/JPS5497748A/ja
Pending legal-status Critical Current

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
    • H02H7/30—Staggered disconnection
    • 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
    • H02H3/402—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 using homopolar quantities

Landscapes

  • Emergency Protection Circuit Devices (AREA)
JP106879A 1978-01-12 1979-01-11 Protective relay Pending JPS5497748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86878978A 1978-01-12 1978-01-12

Publications (1)

Publication Number Publication Date
JPS5497748A true JPS5497748A (en) 1979-08-02

Family

ID=25352322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP106879A Pending JPS5497748A (en) 1978-01-12 1979-01-11 Protective relay

Country Status (10)

Country Link
JP (1) JPS5497748A (ja)
BR (1) BR7900098A (ja)
DE (1) DE2900654A1 (ja)
ES (1) ES476633A1 (ja)
FR (1) FR2414810A1 (ja)
GB (1) GB2012505B (ja)
IT (1) IT1110058B (ja)
MX (1) MX145530A (ja)
SE (1) SE436237B (ja)
ZA (1) ZA79137B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63179736U (ja) * 1987-05-14 1988-11-21

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE459059B (sv) * 1987-09-16 1989-05-29 Asea Ab Skydd foer hoegresistiva jordfel
DE4439499C2 (de) * 1994-10-27 1998-01-29 Siemens Ag Verfahren zum Erfassen eines Erdkurzschlusses auf einer elektrischen Energieübertragungsleitung
US6453248B1 (en) * 1998-07-21 2002-09-17 Abb Inc. High impedance fault detection
AU755700B2 (en) * 1999-11-29 2002-12-19 Canon Kabushiki Kaisha Power generation system, and method for installing the same
ES2323994B1 (es) * 2006-10-25 2010-05-13 Universidad Del Pais Vasco-Euskal Herriko Unibertsitatea Sistema de proteccion de linea electrica para determinar el sentido en el que se produce una falta.
FI126892B (fi) * 2016-05-23 2017-07-31 Emtele Oy Vikavirtaindikaattori

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539866A (en) * 1967-10-11 1970-11-10 Federal Pacific Electric Co Multi-zone fault protection systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63179736U (ja) * 1987-05-14 1988-11-21

Also Published As

Publication number Publication date
IT7919231A0 (it) 1979-01-12
SE436237B (sv) 1984-11-19
BR7900098A (pt) 1979-08-07
GB2012505A (en) 1979-07-25
DE2900654A1 (de) 1979-07-19
GB2012505B (en) 1982-04-28
FR2414810A1 (fr) 1979-08-10
ZA79137B (en) 1979-12-27
IT1110058B (it) 1985-12-23
MX145530A (es) 1982-03-02
SE7900254L (sv) 1979-09-14
ES476633A1 (es) 1979-12-01

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