IT7821828A0 - Metodo e dispositivo per la sorveglianza dei cortocircuiti. - Google Patents

Metodo e dispositivo per la sorveglianza dei cortocircuiti.

Info

Publication number
IT7821828A0
IT7821828A0 IT7821828A IT2182878A IT7821828A0 IT 7821828 A0 IT7821828 A0 IT 7821828A0 IT 7821828 A IT7821828 A IT 7821828A IT 2182878 A IT2182878 A IT 2182878A IT 7821828 A0 IT7821828 A0 IT 7821828A0
Authority
IT
Italy
Prior art keywords
surveillance
short circuits
circuits
short
Prior art date
Application number
IT7821828A
Other languages
English (en)
Other versions
IT1094051B (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 IT7821828A0 publication Critical patent/IT7821828A0/it
Application granted granted Critical
Publication of IT1094051B publication Critical patent/IT1094051B/it

Links

Classifications

    • 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
IT21828/78A 1977-04-01 1978-03-31 Metodo e dispositivo per la sorveglianza dei cortocircuiti IT1094051B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH409177A CH612046A5 (it) 1977-04-01 1977-04-01

Publications (2)

Publication Number Publication Date
IT7821828A0 true IT7821828A0 (it) 1978-03-31
IT1094051B IT1094051B (it) 1985-07-26

Family

ID=4269653

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21828/78A IT1094051B (it) 1977-04-01 1978-03-31 Metodo e dispositivo per la sorveglianza dei cortocircuiti

Country Status (18)

Country Link
US (1) US4249124A (it)
JP (1) JPS53123850A (it)
AR (1) AR215493A1 (it)
AT (1) AT362011B (it)
AU (1) AU517285B2 (it)
BE (1) BE865542A (it)
BR (1) BR7802003A (it)
CA (1) CA1121461A (it)
CH (1) CH612046A5 (it)
DE (1) DE2720168A1 (it)
DK (1) DK142178A (it)
ES (1) ES468439A1 (it)
FR (1) FR2386173A1 (it)
GB (1) GB1603333A (it)
IT (1) IT1094051B (it)
NL (1) NL7803375A (it)
SE (1) SE443478B (it)
YU (2) YU58778A (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH640675A5 (de) * 1978-06-01 1984-01-13 Bbc Brown Boveri & Cie Verfahren und einrichtung zur fehlerrichtungsbestimmung bezueglich eines messortes an elektrischen leitungen.
DK147663C (da) * 1980-12-16 1985-05-28 Phoenix Tagpag Asfaltudlaegningsmaskine
US4667152A (en) * 1985-10-17 1987-05-19 Hayes Raymond M Method of and system for determining locations of sources of harmonics in a power distribution network
EP0224089B1 (en) * 1985-11-07 1990-05-02 Kabushiki Kaisha Toshiba Information data output device for electric-power systems
US4931684A (en) * 1988-12-23 1990-06-05 Westinghouse Electric Corp. Digitally scanned extended electron source in vacuum
JPH0324458U (it) * 1989-07-17 1991-03-13
US5796258A (en) * 1997-01-30 1998-08-18 Abb Power T&D Company, Inc. Adaptive quadrilateral characteristic distance relay
US7221140B2 (en) * 2004-03-16 2007-05-22 Tyco Electronics Power Systems, Inc. Circuit, method and system for providing one or more phase voltages from input voltages
RU2503111C2 (ru) * 2009-06-15 2013-12-27 Абб Текнолоджи Аг Устройство для защиты оборудования энергетической системы

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1096279A (en) 1964-04-28 1967-12-20 English Electric Co Ltd Protective relays
FR1436596A (fr) * 1965-01-22 1966-04-29 Compteurs Comp D Dispositif de protection de distance par relais statiques ultra-rapides
DE1947037U (de) 1965-06-19 1966-09-29 Phrix Werke Ag Vorrichtung zum auffinden von fehlern an laufenden faeden.
DE1588532C3 (de) 1966-04-11 1975-03-06 Meidensha Electric Mfg. Co. Ltd. Distanzrelais
DE1538444A1 (de) * 1966-12-27 1969-10-02 Denzel Dr Ing P Distanzschutz mit polygonalem Ausloesegebiet
GB1170684A (en) 1967-01-20 1969-11-12 English Electric Co Ltd Improvements in Electrical Relays
FR1597420A (it) * 1968-07-05 1970-06-29
FR2058166A1 (it) 1969-08-11 1971-05-28 Compteurs Comp D
CH525578A (de) 1970-12-14 1972-07-15 Bbc Brown Boveri & Cie Distanzrelais für Mehrphasennetze
US3700919A (en) * 1971-02-22 1972-10-24 Allis Chalmers Mfg Co Phase shift detector
DE2120361C3 (de) 1971-04-22 1978-04-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Distanzschutzanordnung
FR2203080B1 (it) 1972-10-17 1977-08-26 Ice
CA976614A (en) * 1972-10-26 1975-10-21 Canadian General Electric Company Limited Inhibited power supplies
GB1422346A (it) * 1972-11-28 1976-01-28

Also Published As

Publication number Publication date
AU517285B2 (en) 1981-07-23
YU58678A (en) 1982-06-30
BR7802003A (pt) 1978-12-19
AT362011B (de) 1981-04-27
SE443478B (sv) 1986-02-24
US4249124A (en) 1981-02-03
CA1121461A (en) 1982-04-06
YU58778A (en) 1982-06-30
AU3472878A (en) 1979-10-11
SE7803624L (sv) 1978-10-02
ES468439A1 (es) 1978-12-16
NL7803375A (nl) 1978-10-03
IT1094051B (it) 1985-07-26
DE2720168A1 (de) 1978-10-05
DK142178A (da) 1978-10-02
CH612046A5 (it) 1979-06-29
DE2720168C2 (it) 1989-01-19
BE865542A (fr) 1978-07-17
AR215493A1 (es) 1979-10-15
JPS6231565B2 (it) 1987-07-09
FR2386173A1 (fr) 1978-10-27
JPS53123850A (en) 1978-10-28
GB1603333A (en) 1981-11-25
ATA162378A (de) 1980-09-15

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