IT1110058B - Apparecchio di rele' per la protezione di impianti di energia elettrica contro guasti di alta impedenza - Google Patents

Apparecchio di rele' per la protezione di impianti di energia elettrica contro guasti di alta impedenza

Info

Publication number
IT1110058B
IT1110058B IT19231/79A IT1923179A IT1110058B IT 1110058 B IT1110058 B IT 1110058B IT 19231/79 A IT19231/79 A IT 19231/79A IT 1923179 A IT1923179 A IT 1923179A IT 1110058 B IT1110058 B IT 1110058B
Authority
IT
Italy
Prior art keywords
protection
high impedance
relay apparatus
against high
plants against
Prior art date
Application number
IT19231/79A
Other languages
English (en)
Italian (it)
Other versions
IT7919231A0 (it
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 IT7919231A0 publication Critical patent/IT7919231A0/it
Application granted granted Critical
Publication of IT1110058B publication Critical patent/IT1110058B/it

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
IT19231/79A 1978-01-12 1979-01-12 Apparecchio di rele' per la protezione di impianti di energia elettrica contro guasti di alta impedenza IT1110058B (it)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IT7919231A0 IT7919231A0 (it) 1979-01-12
IT1110058B true IT1110058B (it) 1985-12-23

Family

ID=25352322

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19231/79A IT1110058B (it) 1978-01-12 1979-01-12 Apparecchio di rele' per la protezione di impianti di energia elettrica contro guasti di alta impedenza

Country Status (10)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63179736U (sv) * 1987-05-14 1988-11-21
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 (sv) * 2016-05-23 2017-07-31 Emtele Oy Felströmindikator

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

Also Published As

Publication number Publication date
IT7919231A0 (it) 1979-01-12
ZA79137B (en) 1979-12-27
BR7900098A (pt) 1979-08-07
SE436237B (sv) 1984-11-19
DE2900654A1 (de) 1979-07-19
JPS5497748A (en) 1979-08-02
MX145530A (es) 1982-03-02
SE7900254L (sv) 1979-09-14
GB2012505B (en) 1982-04-28
GB2012505A (en) 1979-07-25
FR2414810A1 (fr) 1979-08-10
ES476633A1 (es) 1979-12-01

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