CA2208994A1 - Cable partial discharge location pointer - Google Patents

Cable partial discharge location pointer

Info

Publication number
CA2208994A1
CA2208994A1 CA002208994A CA2208994A CA2208994A1 CA 2208994 A1 CA2208994 A1 CA 2208994A1 CA 002208994 A CA002208994 A CA 002208994A CA 2208994 A CA2208994 A CA 2208994A CA 2208994 A1 CA2208994 A1 CA 2208994A1
Authority
CA
Canada
Prior art keywords
power line
sensors
partial discharge
fault
produce
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
CA002208994A
Other languages
French (fr)
Other versions
CA2208994C (en
Inventor
Matthew S. Mashikian
Zhifang Du
Paul S. Mashikian
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.)
University of Connecticut
Original Assignee
The University Of Connecticut
Matthew S. Mashikian
Zhifang Du
Paul S. Mashikian
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 The University Of Connecticut, Matthew S. Mashikian, Zhifang Du, Paul S. Mashikian filed Critical The University Of Connecticut
Publication of CA2208994A1 publication Critical patent/CA2208994A1/en
Application granted granted Critical
Publication of CA2208994C publication Critical patent/CA2208994C/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
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground

Abstract

A method and apparatus for detecting the location of an incipient fault in an insulated power system which includes the application of an excitation voltage to a power line to produce a partial discharge signal pulse at a fault along the power line. The surface of the power line is scanned with two axially spaced sensors disposed adjacent the surface of the power line, the sensors detecting the partial discharge signal pulse to produce discrete detected pulses. These detected pulses are combined to produce a combined signal having an amplitude level which reaches an extreme value when the fault is located equidistantly between the sensors. The sensors are moved along the power line until the fault is located substantially equidistantly between the sensors as indicated by the extreme amplitude level of the combined signal.
CA002208994A 1994-12-27 1995-12-22 Cable partial discharge location pointer Expired - Fee Related CA2208994C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/364,550 1994-12-27
US08/364,550 US5530364A (en) 1994-12-27 1994-12-27 Cable partial discharge location pointer
PCT/US1995/016812 WO1996020410A1 (en) 1994-12-27 1995-12-22 Cable partial discharge location pointer

Publications (2)

Publication Number Publication Date
CA2208994A1 true CA2208994A1 (en) 1996-07-04
CA2208994C CA2208994C (en) 2001-10-09

Family

ID=23434980

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002208994A Expired - Fee Related CA2208994C (en) 1994-12-27 1995-12-22 Cable partial discharge location pointer

Country Status (6)

Country Link
US (1) US5530364A (en)
EP (1) EP0800652B1 (en)
AU (1) AU690420B2 (en)
CA (1) CA2208994C (en)
DE (1) DE69531630T2 (en)
WO (1) WO1996020410A1 (en)

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US7532012B2 (en) * 2006-07-07 2009-05-12 Ambient Corporation Detection and monitoring of partial discharge of a power line
US7307211B1 (en) * 2006-07-31 2007-12-11 Coleman Cable, Inc. Served braid leakage current detecting cable
CN200990261Y (en) * 2006-10-25 2007-12-12 上海益而益电器制造有限公司 Electric source line with electricity leakage detecting conductor
EP2214390B1 (en) * 2009-01-30 2013-01-09 Alcatel Lucent Methods for determining the location of a defect in a wired transmission line and systems according to such methods
IT1392776B1 (en) 2009-02-17 2012-03-23 Techimp Technologies S A Ora Techimp Technologies S R L SENSOR AND PROCEDURE FOR DETECTING AN ELECTRIC IMPULSE CAUSED BY A PARTIAL DOWNLOAD
AU2011223559B2 (en) * 2010-03-05 2016-01-14 Ambient Corporation Evaluating noise and excess current on a power line
US8575918B2 (en) * 2010-03-12 2013-11-05 Frank R. Stockum Wideband transducer for measuring a broad range of currents in high voltage conductors
US10209290B2 (en) * 2010-12-30 2019-02-19 Prysmian S.P.A. Locating of partial-discharge-generating faults
US8890538B2 (en) * 2011-02-09 2014-11-18 General Electric Company Sensing system and method for manufacturing the same
US8868359B2 (en) * 2011-04-29 2014-10-21 General Electric Company Device and method for detecting and locating defects in underground cables
US8868360B2 (en) * 2011-04-29 2014-10-21 General Electric Company System and device for detecting defects in underground cables
JP6043131B2 (en) * 2012-09-10 2016-12-14 株式会社東芝 Partial discharge detector
CN102937691B (en) * 2012-11-08 2016-04-27 西安交通大学 A kind of mine cable partial discharge monitoring and positioning intelligent device
JP6231110B2 (en) * 2013-08-28 2017-11-15 株式会社日立製作所 Partial discharge measurement method and high-voltage equipment inspected using it
FR3015044B1 (en) * 2013-12-12 2016-01-29 Alstom Technology Ltd EXTERNAL UHF SENSOR OF PARTIAL DISCHARGES IN SOFT PRINTED CIRCUIT
CN103913685B (en) * 2014-04-15 2017-03-29 国家电网公司 A kind of cable partial discharge detecting system based on frequency conversion resonance vibration pressure-proof
FR3021410B1 (en) * 2014-05-20 2016-05-13 Nexans HIGH VOLTAGE DRY EQUIPMENT EQUIPPED WITH A CONTINUOUS CONTROL DEVICE
RU2564058C1 (en) * 2014-06-30 2015-09-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Method to generate electric signals imitating simultaneous actuation of group of electrocontact sensors
US9964581B2 (en) * 2014-10-03 2018-05-08 Instrument Manufacturing Company Electrical cable diagnostic system
US9312919B1 (en) * 2014-10-21 2016-04-12 At&T Intellectual Property I, Lp Transmission device with impairment compensation and methods for use therewith
JP6507767B2 (en) * 2015-03-23 2019-05-08 日立金属株式会社 Method of measuring partial discharge, partial discharge measuring device, and method of manufacturing insulated wire
SG11201807744UA (en) * 2016-03-11 2018-10-30 Dius Computing Pty Ltd A power sensor and method for determining power use of an associated appliance
US11177055B2 (en) 2017-03-06 2021-11-16 Savannah River Nuclear Solutions, Llc Leading/lagging cable referencing platform for monitoring the health of underground cable networks
CA3007729A1 (en) 2017-06-12 2018-12-12 Vibrosystm Inc. Method of monitoring partial discharges in a high voltage electric machine, and connection cable therefore
CN109521341A (en) * 2018-12-14 2019-03-26 杭州晟冠科技有限公司 A kind of partial discharge on-Line Monitor Device
US11287463B2 (en) * 2018-12-28 2022-03-29 Palo Alto Research Center Incorporated Partial discharge transducer
US11067610B2 (en) 2018-12-28 2021-07-20 Palo Alto Research Center Incorporated Partial discharge detector
CA3033769A1 (en) 2019-02-14 2020-08-14 Daniel Pineau Partial discharge detector and associated method
US20210072325A1 (en) * 2019-09-05 2021-03-11 Aclara Technologies Llc System and method for sensing one or more power lines
US11486919B2 (en) 2019-10-24 2022-11-01 Palo Alto Research Center Incorporated Partial discharge sensor
US11933834B2 (en) * 2019-12-31 2024-03-19 3M Innovative Properties Company Method and system for detecting self-clearing, sub-cycle faults
US20230176105A1 (en) * 2020-07-15 2023-06-08 Mitsubishi Electriic Corporation Insulation defect detection method and detection system for magnet wire coating, manufacturing method for electric machine, and electric machine

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Also Published As

Publication number Publication date
EP0800652B1 (en) 2003-08-27
WO1996020410A1 (en) 1996-07-04
AU690420B2 (en) 1998-04-23
US5530364A (en) 1996-06-25
EP0800652A1 (en) 1997-10-15
CA2208994C (en) 2001-10-09
AU4688196A (en) 1996-07-19
DE69531630D1 (en) 2003-10-02
DE69531630T2 (en) 2004-06-03
EP0800652A4 (en) 1998-02-11

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