DE3114213C2 - - Google Patents

Info

Publication number
DE3114213C2
DE3114213C2 DE19813114213 DE3114213A DE3114213C2 DE 3114213 C2 DE3114213 C2 DE 3114213C2 DE 19813114213 DE19813114213 DE 19813114213 DE 3114213 A DE3114213 A DE 3114213A DE 3114213 C2 DE3114213 C2 DE 3114213C2
Authority
DE
Germany
Prior art keywords
current
value
microcomputer
trip
circuit breaker
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.)
Expired - Lifetime
Application number
DE19813114213
Other languages
German (de)
English (en)
Other versions
DE3114213C3 (de
DE3114213A1 (de
Inventor
Gary F. Irwin Pa. Us Saletta
Robert T. Elms
Joseph C. Monroeville Pa. Us Engel
Bernard J. Pittsburgh Pa. Us Mercier
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
Priority claimed from US06/140,632 external-priority patent/US4377836A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of DE3114213A1 publication Critical patent/DE3114213A1/de
Application granted granted Critical
Publication of DE3114213C2 publication Critical patent/DE3114213C2/de
Publication of DE3114213C3 publication Critical patent/DE3114213C3/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H02H3/08—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 excess current
    • H02H3/093—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 excess current with timing means
    • H02H3/0935—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 excess current with timing means the timing being determined by numerical means
    • 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
    • H02H3/08—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 excess current
    • H02H3/10—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 excess current additionally responsive to some other abnormal electrical conditions
    • H02H3/105—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 excess current additionally responsive to some other abnormal electrical conditions responsive to excess current and fault current to earth

Landscapes

  • Emergency Protection Circuit Devices (AREA)
DE19813114213 1980-04-15 1981-04-08 Verfahren zum Betreiben eines Trennschalters Expired - Lifetime DE3114213C3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US14063180A 1980-04-15 1980-04-15
US14055980A 1980-04-15 1980-04-15
US06/140,632 US4377836A (en) 1980-04-15 1980-04-15 Circuit interrupter with solid state digital trip unit and positive power-up feature

Publications (3)

Publication Number Publication Date
DE3114213A1 DE3114213A1 (de) 1982-02-04
DE3114213C2 true DE3114213C2 (US06566495-20030520-M00011.png) 1994-09-01
DE3114213C3 DE3114213C3 (de) 1994-09-01

Family

ID=27385518

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813114213 Expired - Lifetime DE3114213C3 (de) 1980-04-15 1981-04-08 Verfahren zum Betreiben eines Trennschalters

Country Status (1)

Country Link
DE (1) DE3114213C3 (US06566495-20030520-M00011.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011085601A1 (de) * 2011-11-02 2013-05-02 Siemens Aktiengesellschaft Auslösereinheit zum Auslösen eines Auslöseelementes eines elektrischen Schaltgerätes sowie elektrisches Schaltgerät

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445183A (en) * 1981-12-23 1984-04-24 Rockwell International Corporation Electrical switch
DE3311240A1 (de) * 1982-04-05 1983-10-13 Siemens-Allis, Inc., 30338 Atlanta, Ga. Ueberwachungsgeraet mit schaltvorrichtung
EP0300076A1 (en) * 1987-07-23 1989-01-25 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
DE3782056T2 (de) * 1987-07-23 1993-04-29 Mitsubishi Electric Corp Ueberstromdetektor und leistungsschalter.
FR2774822B1 (fr) † 1998-02-11 2000-03-17 Schneider Electric Ind Sa Dispositif de protection differentielle
WO2012056287A2 (en) * 2010-10-28 2012-05-03 Abb Technology Ltd A protection relay for sensitive earth fault prtection

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1588423B2 (de) * 1967-03-07 1972-05-18 Hartmann & Braun Ag, 6000 Frankfurt Stromversorgungseinrichtung, insbesondere fuer schutzrelais
DE2310103B2 (de) * 1973-03-01 1976-11-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektronischer ueberstromausloeser
JPS6360610B2 (US06566495-20030520-M00011.png) * 1973-12-07 1988-11-25
DE2609654B2 (de) * 1976-03-09 1978-01-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digitaler ueberstromausloeser
US4038695A (en) * 1976-04-19 1977-07-26 General Electric Company Static trip unit for circuit protective devices
ES468764A1 (es) * 1978-04-13 1979-10-01 Arteche Instr Sistemas Ÿnueva proteccion electrica con tiempo de retardo dependien-te de una magnitud reguladaŸ
GB2020124B (en) * 1978-04-27 1982-08-25 Tokyo Shibaura Electric Co Overcurrent protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011085601A1 (de) * 2011-11-02 2013-05-02 Siemens Aktiengesellschaft Auslösereinheit zum Auslösen eines Auslöseelementes eines elektrischen Schaltgerätes sowie elektrisches Schaltgerät

Also Published As

Publication number Publication date
DE3114213C3 (de) 1994-09-01
DE3114213A1 (de) 1982-02-04

Similar Documents

Publication Publication Date Title
DE3114550C2 (US06566495-20030520-M00011.png)
DE3114546C2 (US06566495-20030520-M00011.png)
DE3114551C2 (US06566495-20030520-M00011.png)
DE3114549C2 (US06566495-20030520-M00011.png)
EP2017867B1 (de) Messvorrichtung zum Messen eines periodischen Analogsignals
DE3750821T2 (de) Fernschutz von Dreiphasenverteiltransformatoren.
DE3114544C2 (US06566495-20030520-M00011.png)
DE3215147C2 (US06566495-20030520-M00011.png)
DE3600171A1 (de) Schalter- und schutzrelaiseinheit
DE3114547A1 (de) "trennschalter mit uebertemperatur-ausloeseeinrichtung"
CH658747A5 (de) Leistungsschalter.
CH658755A5 (de) Leistungsschalter.
DE1538383C3 (de) Statisches Distanzschutzrelais
DE3114213C2 (US06566495-20030520-M00011.png)
DE2852582C2 (US06566495-20030520-M00011.png)
EP0295415A2 (de) Schaltungsanordnung zum Schutz gegen Fehlerströme
DE202010001197U1 (de) Elektronischer Überstromauslöser für Schutzschalter
DE3114548C2 (US06566495-20030520-M00011.png)
DE2531707A1 (de) Verfahren zum wegschalten eines kurzschlussbehafteten netzteiles aus einem geschlossenen elektrischen ringnetz und schalter zur durchfuehrung des verfahrens
DE4322845A1 (de) Anordnung zur Messung von Fehlerströmen in Verbraucherstromkreisen oder dergleichen
DE2037390B2 (de) Distanzschutz fuer vermaschte elektrische netze
AT408495B (de) Steuerbare belastungseinrichtung
EP1403994B1 (de) Niederspannungs-Leistungsschalter mit zusätzlicher Schnellauslösung
DE2526677C3 (de) Kondensatoranordnung zur Beeinflussung des Blindstromes in elektrischen Wechselspannungsnetzen
DE2724770C3 (de) Überlastschutzeinrichtung für druckfest gekapselte Drehstromtransformatoren

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8305 Restricted maintenance of patent after opposition
D4 Patent maintained restricted