CA2115665A1 - Microprocessor Watch-Dog Monitor for Electronic Trip Units - Google Patents

Microprocessor Watch-Dog Monitor for Electronic Trip Units

Info

Publication number
CA2115665A1
CA2115665A1 CA 2115665 CA2115665A CA2115665A1 CA 2115665 A1 CA2115665 A1 CA 2115665A1 CA 2115665 CA2115665 CA 2115665 CA 2115665 A CA2115665 A CA 2115665A CA 2115665 A1 CA2115665 A1 CA 2115665A1
Authority
CA
Canada
Prior art keywords
electronic trip
trip units
dog monitor
microprocessor watch
watch
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.)
Granted
Application number
CA 2115665
Other languages
French (fr)
Other versions
CA2115665C (en
Inventor
Scott Richard Jensen
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.)
Schneider Electric USA Inc
Original Assignee
Scott Richard Jensen
Square D. Company
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 Scott Richard Jensen, Square D. Company filed Critical Scott Richard Jensen
Publication of CA2115665A1 publication Critical patent/CA2115665A1/en
Application granted granted Critical
Publication of CA2115665C publication Critical patent/CA2115665C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428—Safety, monitoring
    • 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
    • H02H3/02—Details
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24125—Watchdog, check at timed intervals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Abstract

A microprocessor watch-dog monitor for electronic trip units includes an input transistor (Q1), a timing circuit (16), and a comparator circuit (18). The comparator circuit is formed of a first bipolar transistor (Q3) of the PNP-type conductivity and a second bipolar transistor (Q4) of the NPN-type conductivity.
CA002115665A 1992-06-19 1993-03-05 Microprocessor watch-dog monitor for electronic trip units Expired - Fee Related CA2115665C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/901,364 1992-06-19
US07/901,364 US5214560A (en) 1992-06-19 1992-06-19 Microprocessor watch-dog monitor for electronic trip units

Publications (2)

Publication Number Publication Date
CA2115665A1 true CA2115665A1 (en) 1994-01-06
CA2115665C CA2115665C (en) 1999-01-05

Family

ID=25414027

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002115665A Expired - Fee Related CA2115665C (en) 1992-06-19 1993-03-05 Microprocessor watch-dog monitor for electronic trip units

Country Status (6)

Country Link
US (1) US5214560A (en)
EP (1) EP0600046B1 (en)
CA (1) CA2115665C (en)
DE (1) DE69307110T2 (en)
MX (1) MX9302426A (en)
WO (1) WO1994000899A1 (en)

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US7400477B2 (en) 1998-08-24 2008-07-15 Leviton Manufacturing Co., Inc. Method of distribution of a circuit interrupting device with reset lockout and reverse wiring protection
US6487057B1 (en) * 2000-06-13 2002-11-26 Eaton Corporation Ground fault current interrupter/arc fault current interrupter circuit breaker with fail safe mechanism
GB0120748D0 (en) 2001-08-25 2001-10-17 Lucas Aerospace Power Equip Generator
WO2003073312A1 (en) * 2002-02-25 2003-09-04 General Electric Company Method and apparatus for minimally invasive network monitoring
US7532955B2 (en) * 2002-02-25 2009-05-12 General Electric Company Distributed protection system for power distribution systems
US20030212473A1 (en) * 2002-02-25 2003-11-13 General Electric Company Processing system for a power distribution system
US7058482B2 (en) * 2002-02-25 2006-06-06 General Electric Company Data sample and transmission modules for power distribution systems
US7111195B2 (en) * 2002-02-25 2006-09-19 General Electric Company Method and system for external clock to obtain multiple synchronized redundant computers
US7747356B2 (en) 2002-02-25 2010-06-29 General Electric Company Integrated protection, monitoring, and control system
DE10210920B4 (en) * 2002-03-13 2005-02-03 Moeller Gmbh Circuit breaker with electronic release
US7636616B2 (en) * 2003-02-25 2009-12-22 General Electric Company Protection system for power distribution systems
US7039822B2 (en) * 2003-02-27 2006-05-02 Promos Technologies Inc. Integrated circuit memory architecture with selectively offset data and address delays to minimize skew and provide synchronization of signals at the input/output section
GB2401467B (en) * 2003-05-09 2006-01-25 Autoliv Dev Improvements in or relating to a movable or removable unit for a motor vehicle
DE10322385B3 (en) * 2003-05-17 2004-11-11 Moeller Gmbh Method and circuit arrangement for monitoring the function of an electronic-mechanical position switch
DE102004015932A1 (en) * 2004-04-01 2005-10-20 Moeller Gmbh Method and circuit arrangement for operating a magnetic drive
US7852606B2 (en) * 2005-08-24 2010-12-14 Leviton Manufacturing Company, Inc. Self-testing circuit interrupting device
US7372678B2 (en) * 2005-08-24 2008-05-13 Leviton Manufacturing Co., Inc. Circuit interrupting device with automatic test
US7554796B2 (en) 2006-01-20 2009-06-30 Adc Telecommunications, Inc. Modular power distribution system and methods
US7911746B2 (en) * 2006-06-01 2011-03-22 Leviton Manufacturing Co., Inc. GFCI with self-test and remote annunciation capabilities
CN101910856B (en) 2008-01-29 2014-06-18 立维腾制造有限公司 Self testing fault circuit interrupter apparatus and method
US8183869B2 (en) * 2008-09-23 2012-05-22 Leviton Manufacturing Co., Inc. Circuit interrupter with continuous self-testing feature
US8116056B2 (en) * 2008-11-14 2012-02-14 Schneider Electric USA, Inc. Low voltage startup timer for a microcontroller-based circuit breaker
JP5989687B2 (en) * 2014-01-20 2016-09-07 中国電力株式会社 Transmission line relay panel recovery device
US9759758B2 (en) 2014-04-25 2017-09-12 Leviton Manufacturing Co., Inc. Ground fault detector
US9697065B1 (en) 2016-03-09 2017-07-04 Nxp Usa, Inc. Systems and methods for managing reset

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875255A (en) * 1981-10-29 1983-05-06 Nec Home Electronics Ltd Runaway detector for microcomputer
US5166887A (en) * 1988-03-31 1992-11-24 Square D Company Microcomputer-controlled circuit breaker system
US5081625A (en) * 1988-10-05 1992-01-14 Ford Motor Company Watchdog circuit for use with a microprocessor
JPH061860Y2 (en) * 1988-10-31 1994-01-19 自動車電機工業株式会社 Automatic vehicle speed controller
US5089928A (en) * 1989-08-31 1992-02-18 Square D Company Processor controlled circuit breaker trip system having reliable status display
US5017846A (en) * 1990-04-05 1991-05-21 General Electric Company Stall protection circuit for an electronically commutated motor
US5151854A (en) * 1990-07-20 1992-09-29 Honeywell Inc. Integrated low voltage detect and watchdog circuit

Also Published As

Publication number Publication date
CA2115665C (en) 1999-01-05
EP0600046B1 (en) 1997-01-02
DE69307110T2 (en) 1997-07-03
DE69307110D1 (en) 1997-02-13
US5214560A (en) 1993-05-25
EP0600046A4 (en) 1994-11-23
MX9302426A (en) 1994-01-31
EP0600046A1 (en) 1994-06-08
WO1994000899A1 (en) 1994-01-06

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Legal Events

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