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FR2289919A1 - Detection of leakage breakdown in underground cables - uses sensing electromagnetic field and electrical potential by probes - Google Patents

Detection of leakage breakdown in underground cables - uses sensing electromagnetic field and electrical potential by probes

Info

Publication number
FR2289919A1
FR2289919A1 FR7436456A FR7436456A FR2289919A1 FR 2289919 A1 FR2289919 A1 FR 2289919A1 FR 7436456 A FR7436456 A FR 7436456A FR 7436456 A FR7436456 A FR 7436456A FR 2289919 A1 FR2289919 A1 FR 2289919A1
Authority
FR
France
Prior art keywords
detection
electromagnetic field
probes
electrical potential
underground cables
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
FR7436456A
Other languages
French (fr)
Other versions
FR2289919B1 (en
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.)
COPRELEC
Original Assignee
COPRELEC
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 COPRELEC filed Critical COPRELEC
Priority to FR7436456A priority Critical patent/FR2289919A1/en
Publication of FR2289919A1 publication Critical patent/FR2289919A1/en
Application granted granted Critical
Publication of FR2289919B1 publication Critical patent/FR2289919B1/fr
Granted 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • G01V3/06—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using ac

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The system is intended for the detection of leakage breakdown in underground electric conductors (3) or conductors embedded in a solid material. It comprises one or more sources of periodic electric energy(1), preferably sinusoidal, means (2) of connecting the source electrically to the conductor (3) to be tested, one or more electromagnetic pick-ups (12) independent of the source (1) and with associated filters (5) enabling the electromagnetic field, emitted by the energy injected from the source, to be located. The electric potential is detected simultaneously by a separate detector sensitive to a different frequency, but linked mechanically to the same pick-ups.
FR7436456A 1974-10-31 1974-10-31 Detection of leakage breakdown in underground cables - uses sensing electromagnetic field and electrical potential by probes Granted FR2289919A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7436456A FR2289919A1 (en) 1974-10-31 1974-10-31 Detection of leakage breakdown in underground cables - uses sensing electromagnetic field and electrical potential by probes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7436456A FR2289919A1 (en) 1974-10-31 1974-10-31 Detection of leakage breakdown in underground cables - uses sensing electromagnetic field and electrical potential by probes

Publications (2)

Publication Number Publication Date
FR2289919A1 true FR2289919A1 (en) 1976-05-28
FR2289919B1 FR2289919B1 (en) 1977-03-18

Family

ID=9144603

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7436456A Granted FR2289919A1 (en) 1974-10-31 1974-10-31 Detection of leakage breakdown in underground cables - uses sensing electromagnetic field and electrical potential by probes

Country Status (1)

Country Link
FR (1) FR2289919A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557702A1 (en) * 1983-12-28 1985-07-05 Luc Bernard Electromagnetic system for the detection of heating cables buried in a concrete screed and for the location of defects in them
CN102680857A (en) * 2012-05-25 2012-09-19 河南省电力公司漯河供电公司 Power cable fault locator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052559B (en) * 1956-05-07 1959-03-12 Christoph Mittelberger Procedure for determining the location of short-circuit points and cable sleeves in power cables laid underground

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052559B (en) * 1956-05-07 1959-03-12 Christoph Mittelberger Procedure for determining the location of short-circuit points and cable sleeves in power cables laid underground

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVUE US "IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS", VOLUME IA-9, NO.4, JUILLET - AOUT 1973, PAGES 380, L'ARTICLE DE CH. A. MALONEY: "LOCATING CABLE FAULTS" *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557702A1 (en) * 1983-12-28 1985-07-05 Luc Bernard Electromagnetic system for the detection of heating cables buried in a concrete screed and for the location of defects in them
CN102680857A (en) * 2012-05-25 2012-09-19 河南省电力公司漯河供电公司 Power cable fault locator

Also Published As

Publication number Publication date
FR2289919B1 (en) 1977-03-18

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Legal Events

Date Code Title Description
ST Notification of lapse