IT1120913B - Procedimento e dispositivo per la determinazione della direzione di guasto - Google Patents

Procedimento e dispositivo per la determinazione della direzione di guasto

Info

Publication number
IT1120913B
IT1120913B IT23065/79A IT2306579A IT1120913B IT 1120913 B IT1120913 B IT 1120913B IT 23065/79 A IT23065/79 A IT 23065/79A IT 2306579 A IT2306579 A IT 2306579A IT 1120913 B IT1120913 B IT 1120913B
Authority
IT
Italy
Prior art keywords
procedure
determining
failure direction
failure
Prior art date
Application number
IT23065/79A
Other languages
English (en)
Other versions
IT7923065A0 (it
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of IT7923065A0 publication Critical patent/IT7923065A0/it
Application granted granted Critical
Publication of IT1120913B publication Critical patent/IT1120913B/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
    • 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
    • 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
    • H02H3/382—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 involving phase comparison between current and voltage or between values derived from current and voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Locating Faults (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
IT23065/79A 1978-06-01 1979-05-29 Procedimento e dispositivo per la determinazione della direzione di guasto IT1120913B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH620378A CH640675A5 (de) 1978-06-01 1978-06-01 Verfahren und einrichtung zur fehlerrichtungsbestimmung bezueglich eines messortes an elektrischen leitungen.

Publications (2)

Publication Number Publication Date
IT7923065A0 IT7923065A0 (it) 1979-05-29
IT1120913B true IT1120913B (it) 1986-03-26

Family

ID=4305901

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23065/79A IT1120913B (it) 1978-06-01 1979-05-29 Procedimento e dispositivo per la determinazione della direzione di guasto

Country Status (12)

Country Link
US (1) US4308565A (it)
BR (1) BR7903400A (it)
CA (1) CA1137611A (it)
CH (1) CH640675A5 (it)
DE (1) DE2827565C2 (it)
FR (1) FR2427720A1 (it)
GB (1) GB2025169B (it)
IT (1) IT1120913B (it)
NL (1) NL7904237A (it)
PT (1) PT69699A (it)
SE (1) SE443686B (it)
YU (2) YU112179A (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH635710A5 (de) * 1979-01-03 1983-04-15 Bbc Brown Boveri & Cie Einrichtung fuer den fehlerrichtungs-vergleichsschutz fuer eine leitung eines elektrischen netzes.
JPS60180424A (ja) * 1984-02-28 1985-09-14 三菱電機株式会社 短絡距離継電器
AU582039B2 (en) * 1986-03-07 1989-03-09 Mitsubishi Denki Kabushiki Kaisha Fault point locating method, fault point resistance measuring method, and impendance to fault point measuring method and apparatuses therefor
JP2003070151A (ja) * 2001-08-27 2003-03-07 Toshiba Corp 保護継電装置
DE102004044519A1 (de) 2004-09-15 2006-03-30 Wieland-Werke Ag Gleitkörper und Verfahren zur Herstellung eines Gleitkörpers sowie dessen Verwendung
US7969155B2 (en) * 2007-07-03 2011-06-28 Thomas & Betts International, Inc. Directional fault current indicator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH320547A (de) * 1954-07-10 1957-03-31 Bbc Brown Boveri & Cie Schutzschaltung für Hochspannungsleitungen mit Seriekondensatoren
US3303390A (en) * 1963-06-07 1967-02-07 Westinghouse Electric Corp Distance relaying
CH525578A (de) * 1970-12-14 1972-07-15 Bbc Brown Boveri & Cie Distanzrelais für Mehrphasennetze
CH585477A5 (it) * 1975-05-09 1977-02-28 Sprecher & Schuh Ag
US4092690A (en) * 1977-01-31 1978-05-30 General Electric Company Protective relay circuit providing a combined distance and overcurrent function
CH612046A5 (it) * 1977-04-01 1979-06-29 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
YU112179A (en) 1982-10-31
DE2827565C2 (de) 1985-06-13
BR7903400A (pt) 1980-01-15
GB2025169B (en) 1983-03-02
US4308565A (en) 1981-12-29
SE443686B (sv) 1986-03-03
FR2427720A1 (fr) 1979-12-28
NL7904237A (nl) 1979-12-04
CH640675A5 (de) 1984-01-13
DE2827565A1 (de) 1979-12-06
PT69699A (de) 1979-06-01
IT7923065A0 (it) 1979-05-29
CA1137611A (en) 1982-12-14
YU159982A (en) 1985-10-31
SE7904605L (sv) 1979-12-02
GB2025169A (en) 1980-01-16

Similar Documents

Publication Publication Date Title
KR830003400U (ko) 조작장치
DE3481084D1 (de) Untersuchungsgeraet.
NO833066L (no) Elektroakustisk anordning
KR830004340U (ko) 베어링 장치
DE3584066D1 (de) Kraftmessvorrichtung.
DE3676505D1 (de) Messgeraet.
IT7925406A0 (it) Ringhiera e procedimento di costruzione della stessa.
IT1156144B (it) Procedimento per la determinazione della forza di serraggio
DK246082A (da) Tympanometriapparat
ATE23063T1 (de) Kraftmessvorrichtung.
DE3484210D1 (de) Strahlungsmessgeraet.
IT7828380A0 (it) Procedimento e dispositivo per la determinazione della posizione dirotazione di oggetti.
DE3688227D1 (de) Filmuntersuchungsvorrichtung.
DE3678533D1 (de) Maehvorrichtung.
IT1110677B (it) Dispositivo di calandratura
IT1120913B (it) Procedimento e dispositivo per la determinazione della direzione di guasto
DE3676028D1 (de) Messgeraet.
AT387748B (de) Vulkanisiervorrichtung
DK209283D0 (da) Afproevningsindretning
DE3667327D1 (de) Wegmesseinrichtung.
AT369703B (de) Uebergangseinrichtung
AT384545B (de) Ultraschall-untersuchungsgeraet
IT1149548B (it) Procedimento e dispositivo per il montaggio della boetta di calzature
DE3218818A1 (de) Partituriervorrichtung
IT1153672B (it) Dispositivo guardia-ordito