CA2277001A1 - Variable trip fault indicator - Google Patents

Variable trip fault indicator Download PDF

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Publication number
CA2277001A1
CA2277001A1 CA002277001A CA2277001A CA2277001A1 CA 2277001 A1 CA2277001 A1 CA 2277001A1 CA 002277001 A CA002277001 A CA 002277001A CA 2277001 A CA2277001 A CA 2277001A CA 2277001 A1 CA2277001 A1 CA 2277001A1
Authority
CA
Canada
Prior art keywords
fault current
fault
indicator
microcomputer
current indicator
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
CA002277001A
Other languages
French (fr)
Other versions
CA2277001C (en
Inventor
John Frederick Banting
Frank John Muench
Eugene Scott Knabe
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.)
McGraw Edison Co
Original Assignee
McGraw Edison Co
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 McGraw Edison Co filed Critical McGraw Edison Co
Publication of CA2277001A1 publication Critical patent/CA2277001A1/en
Application granted granted Critical
Publication of CA2277001C publication Critical patent/CA2277001C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/06—Arrangements for supplying operative power
    • 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
    • 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
    • H02H3/24—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 undervoltage or no-voltage

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

In a power distribution system, a reliable, accurate, and energy efficient fault circuit indicator is provided through a microcomputer-based fault current indicator design. First, reliability is improved inherently because the microcomputer, and the software embedded therein, replace the functionality of numerous discrete, less reliable electronic components found in prior designs.
Second, the embedded software is capable of placing the fault current indicator in one of a number of energy conservation states, without compromising the fault current indicator's ability to provide information relating to the occurrence of a fault. Finally, greater fault current indication accuracy is achieved by detecting excessive line current, followed by a significant drop in line voltage.
CA002277001A 1998-07-09 1999-07-08 Variable trip fault indicator Expired - Fee Related CA2277001C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/112,342 US5959537A (en) 1998-07-09 1998-07-09 Variable trip fault indicator
US09/112,342 1998-07-09

Publications (2)

Publication Number Publication Date
CA2277001A1 true CA2277001A1 (en) 2000-01-09
CA2277001C CA2277001C (en) 2003-01-28

Family

ID=22343383

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002277001A Expired - Fee Related CA2277001C (en) 1998-07-09 1999-07-08 Variable trip fault indicator

Country Status (3)

Country Link
US (1) US5959537A (en)
CA (1) CA2277001C (en)
TW (1) TW410318B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9413519B2 (en) 2014-04-11 2016-08-09 Thomas & Betts International, Inc. Wireless transmission synchronization using a power line signal

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US6774803B1 (en) * 2002-05-31 2004-08-10 Ameren Corporation Fault trip indicator and maintenance method for a circuit breaker
US7072163B2 (en) * 2004-10-19 2006-07-04 Mccollough Jr Norman D Method and apparatus for a remote electric power line conductor faulted circuit current monitoring system
US7187275B2 (en) * 2004-10-21 2007-03-06 Mccollough Jr Norman D Method and apparatus for a remote electric power line conductor faulted circuit current, conductor temperature, conductor potential and conductor strain monitoring and alarm system
US8159362B2 (en) * 2005-10-18 2012-04-17 Schweitzer Engineering Laboratories, Inc. Method of detecting faults using graduated fault detection levels
US7626794B2 (en) 2005-10-18 2009-12-01 Schweitzer Engineering Laboratories, Inc. Systems, methods, and apparatus for indicating faults within a power circuit utilizing dynamically modified inrush restraint
US7382272B2 (en) * 2005-10-19 2008-06-03 Schweitzer Engineering Laboratories, Inc. System, a tool and method for communicating with a faulted circuit indicator using a remote display
US7719436B2 (en) * 2005-10-19 2010-05-18 Schweitzer Engineering Laboratories, Inc. System, a tool and a method for communicating with a faulted circuit indicator using a display
US8059006B2 (en) * 2007-05-18 2011-11-15 Schweitzer Engineering Laboratories, Inc. System and method for communicating power system information through a radio frequency device
WO2007137183A2 (en) * 2006-05-19 2007-11-29 Schweitzer Engineering Laboratories, Inc. Magnetic probe apparatus and method for providing a wireless connection to a detection device
US7609158B2 (en) * 2006-10-26 2009-10-27 Cooper Technologies Company Electrical power system control communications network
US7715002B2 (en) * 2007-01-23 2010-05-11 Bionorica Ag Method for classifying scientific materials such as silicate materials, polymer materials and/or nanomaterials
US8510066B2 (en) * 2007-06-15 2013-08-13 Schweitzer Engineering Laboratories Inc Self-calibrating voltage sensor
CN101334429B (en) * 2007-06-28 2011-06-22 鸿富锦精密工业（深圳）有限公司 Surge electric current test circuit
US7930141B2 (en) 2007-11-02 2011-04-19 Cooper Technologies Company Communicating faulted circuit indicator apparatus and method of use thereof
US8594956B2 (en) * 2007-11-02 2013-11-26 Cooper Technologies Company Power line energy harvesting power supply
US8067946B2 (en) * 2007-11-02 2011-11-29 Cooper Technologies Company Method for repairing a transmission line in an electrical power distribution system
US9383394B2 (en) * 2007-11-02 2016-07-05 Cooper Technologies Company Overhead communicating device
WO2009111321A2 (en) * 2008-02-29 2009-09-11 Schweitzer Engineering Laboratories, Inc. Faulted cirtuit indicator with fault characteristic detection and display
US20090231764A1 (en) * 2008-03-14 2009-09-17 Cooper Technologies Company Capacitor Bank Monitor and Method of use Thereof
US8274394B2 (en) * 2008-03-17 2012-09-25 Schweitzer Engineering Laboratories, Inc. Faulted circuit indicator with end-of-life display and discharge
US20100007354A1 (en) * 2008-07-08 2010-01-14 Deaver Sr Brian J System and Method for Predicting a Fault in a Power Line
MX2013001645A (en) 2010-08-10 2013-08-29 Cooper Technologies Co Apparatus for mounting an overhead monitoring device.
ES2424041T3 (en) * 2010-09-30 2013-09-26 Schneider Electric USA, Inc. Systems, procedures and devices for monitoring a capacitor bank
US20120102367A1 (en) * 2010-10-26 2012-04-26 International Business Machines Corporation Scalable Prediction Failure Analysis For Memory Used In Modern Computers
EP2712083B1 (en) * 2012-09-20 2015-02-25 Infineon Technologies AG Semiconductor device including short-circuit protection depending on an under-voltage detection
US9379556B2 (en) 2013-03-14 2016-06-28 Cooper Technologies Company Systems and methods for energy harvesting and current and voltage measurements
KR101649704B1 (en) * 2015-07-28 2016-08-19 엘에스산전 주식회사 Power failure monitoring apparatus for digital protecting relay
US20230071312A1 (en) * 2021-09-08 2023-03-09 PassiveLogic, Inc. External Activation of Quiescent Device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9413519B2 (en) 2014-04-11 2016-08-09 Thomas & Betts International, Inc. Wireless transmission synchronization using a power line signal

Also Published As

Publication number Publication date
TW410318B (en) 2000-11-01
US5959537A (en) 1999-09-28
CA2277001C (en) 2003-01-28

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Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20190708