DE3247439A1 - Digital electronic overcurrent trip device - Google Patents

Digital electronic overcurrent trip device

Info

Publication number
DE3247439A1
DE3247439A1 DE19823247439 DE3247439A DE3247439A1 DE 3247439 A1 DE3247439 A1 DE 3247439A1 DE 19823247439 DE19823247439 DE 19823247439 DE 3247439 A DE3247439 A DE 3247439A DE 3247439 A1 DE3247439 A1 DE 3247439A1
Authority
DE
Germany
Prior art keywords
digital electronic
trip device
overcurrent trip
electronic overcurrent
microprocessor
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.)
Ceased
Application number
DE19823247439
Other languages
German (de)
Inventor
Hans-Herbert Dipl Ing Gronau
Dietrich Dipl Ing Mueller
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.)
Licentia Patent-Verwaltungs-GmbH
Original Assignee
Licentia Patent-Verwaltungs-GmbH
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 Licentia Patent-Verwaltungs-GmbH filed Critical Licentia Patent-Verwaltungs-GmbH
Priority to DE19823247439 priority Critical patent/DE3247439A1/en
Publication of DE3247439A1 publication Critical patent/DE3247439A1/en
Application status is Ceased legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08Emergency 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
    • H02H3/093Emergency 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
    • H02H3/0935Emergency 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency 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
    • H02H7/26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/30Staggered disconnection

Abstract

The invention relates to a digital electronic overcurrent trip device for a switching apparatus, having a microprocessor for evaluating the measurement voltage and having a device for adjusting the tripping parameters, there being allocated to the microprocessor an electrically erasable, programmable read only memory (EEPROM) for storing the tripping parameters, and an interface for connection of a data input and erasing apparatus for access to the read only memory (Figure 1). <IMAGE>
DE19823247439 1982-12-22 1982-12-22 Digital electronic overcurrent trip device Ceased DE3247439A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823247439 DE3247439A1 (en) 1982-12-22 1982-12-22 Digital electronic overcurrent trip device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823247439 DE3247439A1 (en) 1982-12-22 1982-12-22 Digital electronic overcurrent trip device

Publications (1)

Publication Number Publication Date
DE3247439A1 true DE3247439A1 (en) 1984-07-05

Family

ID=6181379

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823247439 Ceased DE3247439A1 (en) 1982-12-22 1982-12-22 Digital electronic overcurrent trip device

Country Status (1)

Country Link
DE (1) DE3247439A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600172A1 (en) * 1984-07-17 1987-07-09 Gen Electric Static ausloeseschalter
US4689712A (en) * 1985-02-25 1987-08-25 Merlin Gerin S.A. Circuit breaker with solid-state trip unit with a digital processing system shunted by an analog processing system
US4694373A (en) * 1985-02-25 1987-09-15 Merlin Gerin Circuit breaker with digital solid-state trip unit with optional functions
US4710845A (en) * 1985-02-25 1987-12-01 Merlin Gerin S.A. Circuit breaker with solid-state trip unit with sampling and latching at the last signal peak
US4717985A (en) * 1985-02-25 1988-01-05 Merlin Gerin S.A. Circuit breaker with digitized solid-state trip unit with inverse time tripping function
FR2637744A1 (en) * 1988-10-11 1990-04-13 Gen Electric Digital breaker with outbreak of parameters for electric motor
DE3841186A1 (en) * 1988-12-07 1990-06-13 Asea Brown Boveri Device for electrical loads
EP0577339A1 (en) * 1992-06-30 1994-01-05 Eaton Corporation Overcurrent protection device
EP0589347A2 (en) * 1992-09-16 1994-03-30 Hitachi, Ltd. Circuit breaker and method of controlling the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234204A1 (en) * 1981-09-18 1983-06-01 Mc Graw Edison Co Microprocessor-controlled selbsttaetig reinstate switching breakers for circuits

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234204A1 (en) * 1981-09-18 1983-06-01 Mc Graw Edison Co Microprocessor-controlled selbsttaetig reinstate switching breakers for circuits

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600172A1 (en) * 1984-07-17 1987-07-09 Gen Electric Static ausloeseschalter
US4689712A (en) * 1985-02-25 1987-08-25 Merlin Gerin S.A. Circuit breaker with solid-state trip unit with a digital processing system shunted by an analog processing system
US4694373A (en) * 1985-02-25 1987-09-15 Merlin Gerin Circuit breaker with digital solid-state trip unit with optional functions
US4710845A (en) * 1985-02-25 1987-12-01 Merlin Gerin S.A. Circuit breaker with solid-state trip unit with sampling and latching at the last signal peak
US4717985A (en) * 1985-02-25 1988-01-05 Merlin Gerin S.A. Circuit breaker with digitized solid-state trip unit with inverse time tripping function
FR2637744A1 (en) * 1988-10-11 1990-04-13 Gen Electric Digital breaker with outbreak of parameters for electric motor
DE3841186A1 (en) * 1988-12-07 1990-06-13 Asea Brown Boveri Device for electrical loads
EP0577339A1 (en) * 1992-06-30 1994-01-05 Eaton Corporation Overcurrent protection device
EP0589347A2 (en) * 1992-09-16 1994-03-30 Hitachi, Ltd. Circuit breaker and method of controlling the same
EP0589347A3 (en) * 1992-09-16 1994-11-17 Hitachi Ltd Circuit breaker and method of controlling the same.

Similar Documents

Publication Publication Date Title
US4672501A (en) Circuit breaker and protective relay unit
GB2120960B (en) Developer device
DE3374259D1 (en) Input/output device arrangements for terminals
GB2131582B (en) Electronic translator
GB2120403B (en) Electronic flash device
DE3376361D1 (en) Device for testing printed circuits
DE3261595D1 (en) Multi-pole circuit breaker with an interchangeable thermal-magnetic trip unit
GB2074354B (en) Electronic translator
GB2041544B (en) Testing electrical circuit components before insertion
DE3372835D1 (en) Electronic viewfinder
JPS56160004A (en) Ptc circuit protecting device
GB8322699D0 (en) Remote-controllable circuit breaker
GB2100481B (en) Switching regulator circuit
JPS57196539A (en) Test device for electric characteristics
JPS60216278A (en) Testing apparatus for logic circuit
GB2026789B (en) Terminal block for printed circuits
EP0432482A3 (en) Semiconductor memory circuit apparatus
DE3278059D1 (en) High terminal count integrated circuit device package
GB2085228B (en) Electrically erasable mosfet storage device
EP0167356A3 (en) Device for reading and writing ic card as external memory
JPS5713866A (en) Digital error measuring circuit for shading and register error for television camera
JPS61180248A (en) Improved toner used in composition for developing electrostatic latent image, making thereof and liquid composition using improved toner
IE53131B1 (en) Thick film conductor compositions
GB2073899B (en) Variable magnification line-by-line photocopying
JPS5960594A (en) Paper money handler

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection