MX154859A - IMPROVEMENTS IN THERMOMAGNETIC SWITCH WITH MICROCOMPUTER TRIP UNIT - Google Patents

IMPROVEMENTS IN THERMOMAGNETIC SWITCH WITH MICROCOMPUTER TRIP UNIT

Info

Publication number
MX154859A
MX154859A MX186850A MX18685081A MX154859A MX 154859 A MX154859 A MX 154859A MX 186850 A MX186850 A MX 186850A MX 18685081 A MX18685081 A MX 18685081A MX 154859 A MX154859 A MX 154859A
Authority
MX
Mexico
Prior art keywords
trip unit
thermomagnetic switch
microcomputer
microcomputer trip
thermomagnetic
Prior art date
Application number
MX186850A
Other languages
Spanish (es)
Inventor
Gary F Saletta
Robert T Elms
Joseph C Engel
Bernard J Mercier
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 MX154859A publication Critical patent/MX154859A/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
MX186850A 1980-04-15 1981-04-14 IMPROVEMENTS IN THERMOMAGNETIC SWITCH WITH MICROCOMPUTER TRIP UNIT MX154859A (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 (1)

Publication Number Publication Date
MX154859A true MX154859A (en) 1987-12-22

Family

ID=26838358

Family Applications (1)

Application Number Title Priority Date Filing Date
MX186850A MX154859A (en) 1980-04-15 1981-04-14 IMPROVEMENTS IN THERMOMAGNETIC SWITCH WITH MICROCOMPUTER TRIP UNIT

Country Status (9)

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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4423459A (en) 1982-04-05 1983-12-27 Siemens-Allis, Inc. Solid state circuit protection system and method
US4672501A (en) * 1984-06-29 1987-06-09 General Electric Company Circuit breaker and protective relay unit
FR2578090B1 (en) * 1985-02-25 1989-12-01 Merlin Gerin CIRCUIT BREAKER WITH DIGITAL STATIC TRIGGER WITH REVERSE TIME TRIGGERING FUNCTION
FR2578091B1 (en) * 1985-02-25 1988-08-05 Merlin Gerin CIRCUIT BREAKER WITH DIGITAL STATIC TRIGGER PROVIDED WITH A CALIBRATION CIRCUIT
JPS61207128A (en) * 1985-03-07 1986-09-13 三菱電機株式会社 Anti-time limiting relay
FR2595170B1 (en) * 1986-03-03 1990-03-09 Mors ELECTRONIC ELECTRIC MOTOR PROTECTION METHOD AND DEVICE FOR IMPLEMENTING IT
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 (en) * 1988-09-09 1997-04-23 日本碍子株式会社 Distribution line monitoring system
JPH0284014A (en) * 1988-09-20 1990-03-26 Ngk Insulators Ltd Distribution line monitoring system
JPH0834705B2 (en) * 1988-11-16 1996-03-29 株式会社大林組 Switch
AT399429B (en) * 1989-06-06 1995-05-26 Gec Alsthom T & D Gmbh ELECTRONIC DEVICE WITH A PLUG UNIT FOR SWITCHING MONITORING OF SWITCHGEAR
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 (en) * 1976-03-09 1978-01-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt DIGITAL OVERCURRENT RELEASE
FR2412079A1 (en) * 1977-12-13 1979-07-13 Electricite De France Electrical power distribution network fault detector - has FET switches with low-pass filter providing blocking signals for isolating circuit at multivibrator output
ES468764A1 (en) * 1978-04-13 1979-10-01 Arteche Instr Sistemas A new delayed action electrical protection device, depending on an adjusted magnitude.
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
GB2073969A (en) 1981-10-21
BR8102310A (en) 1981-12-08
IT8121171A0 (en) 1981-04-14
FR2481534A1 (en) 1981-10-30
FR2481534B1 (en) 1986-12-26
GB2073969B (en) 1984-09-26
IE810731L (en) 1981-10-15
IT1137369B (en) 1986-09-10
IE51346B1 (en) 1986-12-10
AU549018B2 (en) 1986-01-09
NZ196611A (en) 1985-07-31
CH658755A5 (en) 1986-11-28
AU6873281A (en) 1981-10-22

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