CA2217278A1 - Test-point mounted fault indicator having immunity to fault currents in adjacent conductors - Google Patents

Test-point mounted fault indicator having immunity to fault currents in adjacent conductors

Info

Publication number
CA2217278A1
CA2217278A1 CA002217278A CA2217278A CA2217278A1 CA 2217278 A1 CA2217278 A1 CA 2217278A1 CA 002217278 A CA002217278 A CA 002217278A CA 2217278 A CA2217278 A CA 2217278A CA 2217278 A1 CA2217278 A1 CA 2217278A1
Authority
CA
Canada
Prior art keywords
fault
adjacent conductors
immunity
test
fault 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
CA002217278A
Other languages
French (fr)
Other versions
CA2217278C (en
Inventor
Edmund O. Schweitzer, Jr.
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2217278A1 publication Critical patent/CA2217278A1/en
Application granted granted Critical
Publication of CA2217278C publication Critical patent/CA2217278C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G01R19/15—Indicating the presence of current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/22—Tong testers acting as secondary windings of current transformers

Abstract

A fault indicator for indicating the occurrence of a fault current in an electrical conductor is mounted on the test point of an elbow connector of the type commonly used in power distribution systems. An integral collar assembly encircles the connector housing to capacitively couple the fault indicator circuitry to the system conductor within the connector. The collar assembly includes an inner magnetic core which establishes the coupling and an outer core which shields the inner core from magnetic fields resulting from fault currents in adjacent conductors.
CA002217278A 1997-02-06 1997-10-03 Test-point mounted fault indicator having immunity to fault currents in adjacent conductors Expired - Fee Related CA2217278C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/796,106 1997-02-06
US08/796,106 US5889399A (en) 1997-02-06 1997-02-06 Test-point mounted fault indicator having immunity to fault currents in adjacent conductors

Publications (2)

Publication Number Publication Date
CA2217278A1 true CA2217278A1 (en) 1998-08-06
CA2217278C CA2217278C (en) 2001-09-18

Family

ID=25167315

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002217278A Expired - Fee Related CA2217278C (en) 1997-02-06 1997-10-03 Test-point mounted fault indicator having immunity to fault currents in adjacent conductors

Country Status (2)

Country Link
US (1) US5889399A (en)
CA (1) CA2217278C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106803801A (en) * 2015-11-25 2017-06-06 弗兰克公司 Using the system and method for the wireline test result data of polymerization

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6429661B1 (en) 1999-12-09 2002-08-06 Edmund O. Schweitzer, Jr. Fault indicator for three-phase sheathed cable
US6531880B1 (en) 2000-07-03 2003-03-11 American Electric Power Company, Inc. Non-invasive cable tester
US6646519B2 (en) 2001-05-07 2003-11-11 Viewsonics, Inc. RF equalizer
US7183871B2 (en) * 2001-05-07 2007-02-27 Viewsonics, Inc Bi-directional access point
US20060284647A1 (en) * 2005-01-19 2006-12-21 Gunn Colin N Sensor apparatus
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
US8159362B2 (en) * 2005-10-18 2012-04-17 Schweitzer Engineering Laboratories, Inc. Method of detecting faults using graduated fault detection levels
EP2019969A2 (en) 2006-05-19 2009-02-04 Schweitzer Engineering Laboratories, Inc. User interface for monitoring a plurality of faulted circuit indicators
US7692538B2 (en) * 2006-05-19 2010-04-06 Schweitzer Engineering Laboratories, Inc. User interface for monitoring a plurality of faulted circuit indicators
US7683261B2 (en) * 2006-05-19 2010-03-23 Schweitzer Engineering Laboratories, Inc. Article and method for providing a seal for an encapsulated device
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
WO2008066951A2 (en) * 2006-05-19 2008-06-05 Schweitzer Engineering Laboratories, Inc. System and apparatus for optical communications through a semi-opaque material
WO2007137192A2 (en) 2006-05-19 2007-11-29 Schweitzer Engineering Laboratories, Inc. Apparatus and system for adjusting settings of a power system device using a magnetically coupled actuator
AU2007256971B2 (en) * 2006-05-19 2011-06-02 Schweitzer Engineering Laboratories, Inc. Faulted circuit indicator monitoring device with wireless memory monitor
US8510066B2 (en) * 2007-06-15 2013-08-13 Schweitzer Engineering Laboratories Inc Self-calibrating voltage sensor
CA2716587C (en) * 2008-02-29 2014-08-12 Schweitzer Engineering Laboratories, Inc. Faulted circuit indicator with fault characteristic detection and display
US8274394B2 (en) * 2008-03-17 2012-09-25 Schweitzer Engineering Laboratories, Inc. Faulted circuit indicator with end-of-life display and discharge
MX2010010624A (en) * 2008-04-04 2010-10-26 Schweitzer Engineering Lab Inc Three-phase faulted circuit indicator.
US8665102B2 (en) * 2008-07-18 2014-03-04 Schweitzer Engineering Laboratories Inc Transceiver interface for power system monitoring
DE102011102978B4 (en) * 2011-05-23 2018-05-17 Phoenix Contact Gmbh & Co. Kg Current transducers
EP2584364A1 (en) * 2011-10-19 2013-04-24 Raychem International Self centering, split multicore current sensor
US8526156B2 (en) 2011-12-21 2013-09-03 Schweitzer Engineering Laboratories Inc High speed signaling of power system conditions
US9847671B2 (en) 2014-04-11 2017-12-19 Thomas & Betts International Llc Power supply for faulted circuit indicator
US10161986B2 (en) 2016-10-17 2018-12-25 Schweitzer Engineering Laboratories, Inc. Electric power system monitoring using distributed conductor-mounted devices
US11152152B2 (en) 2018-12-03 2021-10-19 Schweitzer Engineering Laboratories, Inc. Fabrication process to produce a toroidal current transformer
US10971295B2 (en) 2018-12-03 2021-04-06 Schweitzer Engineering Laboratories, Inc. Two part clamping and suspension mechanism for a split toroidal current transformer
US11397198B2 (en) 2019-08-23 2022-07-26 Schweitzer Engineering Laboratories, Inc. Wireless current sensor
CN111157777B (en) * 2020-01-14 2020-11-27 清华大学 Design method of double-magnetic-core differential leakage current measurement sensor
CN111157776A (en) * 2020-01-14 2020-05-15 清华大学 Double-magnetic-core sensor for insulation leakage current of power equipment
US11662369B2 (en) 2021-10-11 2023-05-30 Schweitzer Engineering Laboratories, Inc. Polymeric mounting suspension for a split core current transformer

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816816A (en) * 1969-11-03 1974-06-11 Schweitzer Mfg Co E Indicating and automatically resettable system for detection of fault current flow in a conductor
US3906477A (en) * 1974-09-06 1975-09-16 Schweitzer Edmund O Jun Fault indicator in test point cap
US3991366A (en) * 1975-04-10 1976-11-09 Schweitzer Edmund O Jun Means for indicating abnormal high current flow in a high voltage electric power distribution conductor and for resetting and testing same
US4086529A (en) * 1976-07-26 1978-04-25 Schweitzer Edmund O Jun Fault indicator and means for resetting the same
US4165528A (en) * 1976-07-26 1979-08-21 Schweitzer Edmund O Jun Fault indicator and means for resetting same
US4034360A (en) * 1976-08-06 1977-07-05 Schweitzer Edmund O Jun System for disabling the reset circuit of fault indicating means
US4063171A (en) * 1976-11-04 1977-12-13 Schweitzer Edmund O Jun Fault indicator responsive to flow of fault current in a conductor when power flow is in one direction only
US4152643A (en) * 1978-04-10 1979-05-01 E. O. Schweitzer Manufacturing Co., Inc. Voltage indicating test point cap
US4263550A (en) * 1978-04-10 1981-04-21 Schweitzer Edmund O Jun Test point mounted circuit condition indicator
US4288743A (en) * 1978-10-10 1981-09-08 Schweitzer Edmund O Fault indicator operable from a remote excitation source through a uniformly distributed impedance cable
US4234847A (en) * 1978-11-06 1980-11-18 Schweitzer Edmund O Fault indicator
US4251770A (en) * 1979-06-25 1981-02-17 Schweitzer Edmund O Jun Combined fault and voltage indicator
US4458198A (en) * 1979-12-13 1984-07-03 Schweitzer Edmund O Jun Fault indicator having a remote test point at which fault occurrence is indicated by change in magnetic state
US4375617A (en) * 1980-03-20 1983-03-01 Schweitzer Edmund O Jun Fault indicator with flux concentrating means
US4414543A (en) * 1980-09-25 1983-11-08 Schweitzer Edmund O Jun Ground fault indicator
US4424512A (en) * 1980-09-25 1984-01-03 Schweitzer Edmund O Jun Fault indicator having increased sensitivity to fault currents
US4456873A (en) * 1981-08-04 1984-06-26 Schweitzer Edmund O Jun Cable mounted magnetic core assembly
US4438403A (en) * 1981-08-04 1984-03-20 Schweitzer Edmund O Jun Fault indicator with combined trip and reset winding
US4495489A (en) * 1982-07-20 1985-01-22 Schweitzer Edmund O Jun Fault indicator with improved flag indicator assembly
US4536758A (en) * 1983-03-10 1985-08-20 Schweitzer Edmund O Jun Fault indicator with push button reset
US4550288A (en) * 1983-07-29 1985-10-29 Schweitzer Edmund O Jun Voltage loss sensor and alarm
US4686518A (en) * 1983-07-29 1987-08-11 Schweitzer Edmund O Jun Fault indicator having trip inhibit circuit
US4646006A (en) * 1984-06-28 1987-02-24 Schweitzer Edmund O Jun Clamp mechanism for power line mounted monitoring device
US4641220A (en) * 1984-09-21 1987-02-03 Schweitzer Edmund O Jun Test point mounted voltage monitoring system
US4706016A (en) * 1985-05-03 1987-11-10 Schweitzer Edmund O Jun Surge detector having distributed line inductance pickup
US4794329A (en) * 1986-03-28 1988-12-27 Schweitzer Edmund O Jun Cable mounted capacitively-coupled circuit condition indicating device
US4794332A (en) * 1986-03-28 1988-12-27 Schweitzer Edmund O Jun Fault indicator having improved trip inhibit circuit
US4714916A (en) * 1986-03-28 1987-12-22 Schweitzer Edmund O Jun Voltage loss detector
US4795982A (en) * 1987-04-24 1989-01-03 Schweitzer Edmund O Jun Fault indicator having delayed trip circuit
US4904932A (en) * 1987-06-16 1990-02-27 E. O. Schweitzer Manufacturing Co., Inc. Circuit condition monitor with integrally molded test point socket and capacitive coupling
US4794331A (en) * 1987-10-30 1988-12-27 Schweitzer Edmund O Jun Circuit condition monitoring system having integral test point
US4873706A (en) * 1988-03-09 1989-10-10 Schweitzer Edmund O Jun Electromechanical pulse counter
US5153565A (en) * 1988-08-10 1992-10-06 Schweitzer Edmund O Jun Fault indicator having electrostatically-actuated indicator flag
US5008651A (en) * 1989-11-08 1991-04-16 Schweitzer Edmund O Jun Battery-powered fault indicator
US5095265A (en) * 1989-11-08 1992-03-10 Schweitzer Edmund O Jun Circuit status indicator having liquid crystal display
US5274324A (en) * 1989-11-08 1993-12-28 Schweitzer Edmund O Jun Hot line mountable hotline indicator having liquid crystal display with resettable memory function
US5070301A (en) * 1989-11-08 1991-12-03 Schweitzer Edmund O Jun Fault indicator having liquid crystal status display
US5077520A (en) * 1990-05-15 1991-12-31 Schweitzer Edmund O Jun High impedance voltage indicator having capacitive voltage divider
US5182547A (en) * 1991-01-16 1993-01-26 High Voltage Maintenance Neutral wire current monitoring for three-phase four-wire power distribution system
US5220311A (en) * 1991-02-19 1993-06-15 Schweitzer Edmund O Jun Direction indicating fault indicators
US5180972A (en) * 1992-01-31 1993-01-19 Schweitzer Edmund O Jun Housing including biasing springs extending between clamp arms for cable mounted power line monitoring device
US5221894A (en) * 1992-03-02 1993-06-22 Miller Electric Manufacturing Company Weld current sensor
US5406195A (en) * 1992-12-21 1995-04-11 Schweitzer, Jr.; Edmund O. Phase-to-phase voltage monitor for three-phase power distribution system
US5420502A (en) * 1992-12-21 1995-05-30 Schweitzer, Jr.; Edmund O. Fault indicator with optically-isolated remote readout circuit
US5363088A (en) * 1992-12-21 1994-11-08 Schweitzer Edmund O Jun Voltage monitor for alternating current power system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106803801A (en) * 2015-11-25 2017-06-06 弗兰克公司 Using the system and method for the wireline test result data of polymerization

Also Published As

Publication number Publication date
US5889399A (en) 1999-03-30
CA2217278C (en) 2001-09-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20091005