IE810731L - Current interrupter - Google Patents

Current interrupter

Info

Publication number
IE810731L
IE810731L IE810731A IE73181A IE810731L IE 810731 L IE810731 L IE 810731L IE 810731 A IE810731 A IE 810731A IE 73181 A IE73181 A IE 73181A IE 810731 L IE810731 L IE 810731L
Authority
IE
Ireland
Prior art keywords
current interrupter
gb2073969a
digitised
overcurrent
analysed
Prior art date
Application number
IE810731A
Other languages
English (en)
Other versions
IE51346B1 (en
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 IE810731L publication Critical patent/IE810731L/xx
Publication of IE51346B1 publication Critical patent/IE51346B1/en

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
    • H02H3/10—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
    • 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

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Protection Of Generators And Motors (AREA)
IE731/81A 1980-04-15 1981-03-31 Circuit interrupter with front panel numeric display IE51346B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14063180A 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 (2)

Publication Number Publication Date
IE810731L true IE810731L (en) 1981-10-15
IE51346B1 IE51346B1 (en) 1986-12-10

Family

ID=26838358

Family Applications (1)

Application Number Title Priority Date Filing Date
IE731/81A IE51346B1 (en) 1980-04-15 1981-03-31 Circuit interrupter with front panel numeric display

Country Status (9)

Country Link
AU (1) AU549018B2 (xx)
BR (1) BR8102310A (xx)
CH (1) CH658755A5 (xx)
FR (1) FR2481534B1 (xx)
GB (1) GB2073969B (xx)
IE (1) IE51346B1 (xx)
IT (1) IT1137369B (xx)
MX (1) MX154859A (xx)
NZ (1) NZ196611A (xx)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423459A (en) 1982-04-05 1983-12-27 Siemens-Allis, Inc. Solid state circuit protection system and method
US4423458A (en) 1982-04-05 1983-12-27 Siemens-Allis, Inc. Signal processing system for overload relay or the like
US4456871A (en) * 1982-04-05 1984-06-26 Siemens-Allis, Inc. Power supply for electronic control system
US4446498A (en) * 1982-04-05 1984-05-01 Siemens-Allis, Inc. Electronic control system for overload relay or the like
US4672501A (en) * 1984-06-29 1987-06-09 General Electric Company Circuit breaker and protective relay unit
FR2578090B1 (fr) * 1985-02-25 1989-12-01 Merlin Gerin Disjoncteur a declencheur statique numerise a fonction de declenchement a temps inverse
FR2578091B1 (fr) * 1985-02-25 1988-08-05 Merlin Gerin Disjoncteur a declencheur statique numerique dote d'un circuit de calibrage
JPS61207128A (ja) * 1985-03-07 1986-09-13 三菱電機株式会社 反限時継電器
FR2595170B1 (fr) * 1986-03-03 1990-03-09 Mors Procede de protection electronique de moteur electrique et dispositif pour sa mise en oeuvre
US4827369A (en) * 1987-02-20 1989-05-02 Westinghouse Electric Corp. Circuit interrupter apparatus with a selectable display means
US4809125A (en) * 1987-02-20 1989-02-28 Westinghouse Electric Corp. Circuit interrupter apparatus with a style saving rating plug
US4752853A (en) * 1987-02-20 1988-06-21 Westinghouse Electric Corp. Circuit interrupter apparatus with an integral trip curve display
JP2604015B2 (ja) * 1988-09-09 1997-04-23 日本碍子株式会社 配電線監視システム
JPH0284014A (ja) * 1988-09-20 1990-03-26 Ngk Insulators Ltd 配電線監視システム
JPH0834705B2 (ja) * 1988-11-16 1996-03-29 株式会社大林組 開閉器
AT399429B (de) * 1989-06-06 1995-05-26 Gec Alsthom T & D Gmbh Elektronische einrichtung mit einer steckeinheit zur ausschaltüberwachung von schaltgeräten
US6097192A (en) * 1998-03-05 2000-08-01 General Electric Company Method for initializing short time and groundfault protection heat index accumulators in a trip unit
US8355230B2 (en) 2003-12-08 2013-01-15 Siemens Industry, Inc. Extended instantaneous protection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609654B2 (de) * 1976-03-09 1978-01-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digitaler ueberstromausloeser
FR2412079A1 (fr) * 1977-12-13 1979-07-13 Electricite De France Dispositif de mesure a affichage numerique d'une valeur temporaire de tension a frequence de reseau, en reponse a l'apparition d'un signal d'evenement
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
JPS55127821A (en) * 1979-03-27 1980-10-03 Tokyo Shibaura Electric Co Digital protection relay unit
US4339802A (en) * 1979-08-10 1982-07-13 Tokyo Shibaura Denki Kabushiki Kaisha Digital protective relaying devices
US4319298A (en) * 1979-08-28 1982-03-09 General Electric Company Motor protection device
WO1981002496A1 (en) * 1980-02-23 1981-09-03 Ellison George Ltd Overcurrent protection devices

Also Published As

Publication number Publication date
BR8102310A (pt) 1981-12-08
AU6873281A (en) 1981-10-22
CH658755A5 (de) 1986-11-28
IE51346B1 (en) 1986-12-10
IT1137369B (it) 1986-09-10
IT8121171A0 (it) 1981-04-14
MX154859A (es) 1987-12-22
FR2481534A1 (fr) 1981-10-30
GB2073969B (en) 1984-09-26
GB2073969A (en) 1981-10-21
FR2481534B1 (fr) 1986-12-26
NZ196611A (en) 1985-07-31
AU549018B2 (en) 1986-01-09

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Legal Events

Date Code Title Description
MM4A Patent lapsed