FR2401427A1 - LV conductor insulation fault detection - with filtered voltage applied to short electrode with fault signal amplified as voltage drop in double bridge divider connected to converter - Google Patents

LV conductor insulation fault detection - with filtered voltage applied to short electrode with fault signal amplified as voltage drop in double bridge divider connected to converter

Info

Publication number
FR2401427A1
FR2401427A1 FR7726775A FR7726775A FR2401427A1 FR 2401427 A1 FR2401427 A1 FR 2401427A1 FR 7726775 A FR7726775 A FR 7726775A FR 7726775 A FR7726775 A FR 7726775A FR 2401427 A1 FR2401427 A1 FR 2401427A1
Authority
FR
France
Prior art keywords
converter
signal amplified
divider connected
conductor insulation
voltage applied
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
FR7726775A
Other languages
French (fr)
Other versions
FR2401427B1 (en
Inventor
Guy Roland Baudelocque
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.)
Trefimetaux SAS
Original Assignee
Trefimetaux SAS
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 Trefimetaux SAS filed Critical Trefimetaux SAS
Priority to FR7726775A priority Critical patent/FR2401427A1/en
Priority to SE7808762A priority patent/SE7808762L/en
Priority to ES472773A priority patent/ES472773A1/en
Priority to GR57063A priority patent/GR66027B/el
Priority to PT68470A priority patent/PT68470A/en
Priority to DE2837065A priority patent/DE2837065C3/en
Priority to IT26984/78A priority patent/IT1098141B/en
Priority to NL7808761A priority patent/NL7808761A/en
Priority to LU80158A priority patent/LU80158A1/en
Priority to BE190063A priority patent/BE869967A/en
Priority to CH902078A priority patent/CH625627A5/fr
Priority to GB7834710A priority patent/GB2004657B/en
Publication of FR2401427A1 publication Critical patent/FR2401427A1/en
Application granted granted Critical
Publication of FR2401427B1 publication Critical patent/FR2401427B1/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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • G01R31/59—Testing of lines, cables or conductors while the cable continuously passes the testing apparatus, e.g. during manufacture

Abstract

Low voltage electrical conductors are checked for faults in the insulating material at the end of the production line. Faults may be too little or no insulation at certain points. The hv from a generator with high internal resistance is applied between central conductor and an external electrode. A detector electrode comprises a short tube which passes over the conductor. Signals indicating fault conditions occur as LV signals which are divided down and passed by a matching circuit prior to application to an adjustable discriminator. A wave shaping monostable creates an alarm signal.
FR7726775A 1977-08-26 1977-08-26 LV conductor insulation fault detection - with filtered voltage applied to short electrode with fault signal amplified as voltage drop in double bridge divider connected to converter Granted FR2401427A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FR7726775A FR2401427A1 (en) 1977-08-26 1977-08-26 LV conductor insulation fault detection - with filtered voltage applied to short electrode with fault signal amplified as voltage drop in double bridge divider connected to converter
SE7808762A SE7808762L (en) 1977-08-26 1978-08-18 METHOD AND DEVICE FOR CONTINUOUS DETECTION OF INSULATION FAULTS IN ELECTRICAL ACTIVE VOLTAGE CONDUCTORS
GR57063A GR66027B (en) 1977-08-26 1978-08-23
PT68470A PT68470A (en) 1977-08-26 1978-08-23 METHOD AND APPARATUS FOR CONTINUOUS DETECTION OF ELECTRICAL CONDUCTOR INSULATION FAULTS FOR LOW VOLTAGE
ES472773A ES472773A1 (en) 1977-08-26 1978-08-23 A method of and an apparatus for continuously detecting insulating defects in low- voltage electrical conductors
IT26984/78A IT1098141B (en) 1977-08-26 1978-08-24 CONTINUOUS DETECTION PROCESS AND EQUIPMENT FOR LOW VOLTAGE ELECTRIC CONDUCTORS INSULATION
DE2837065A DE2837065C3 (en) 1977-08-26 1978-08-24 Device for the continuous detection of insulation faults on electrical wires for low voltage
NL7808761A NL7808761A (en) 1977-08-26 1978-08-24 METHOD AND DEVICE FOR THE CONTINUOUS DETECTION OF INSULATION FAULTS IN ELECTRICAL LOW-VOLTAGE CONDUCTORS.
LU80158A LU80158A1 (en) 1977-08-26 1978-08-25 METHOD AND APPARATUS FOR CONTINUOUS DETECTION OF INSULATION FAULTS OF ELECTRIC CONDUCTORS FOR LOW VOLTAGE
BE190063A BE869967A (en) 1977-08-26 1978-08-25 METHOD AND APPARATUS FOR CONTINUOUS DETECTION OF INSULATION FAULTS OF ELECTRIC CONDUCTORS FOR LOW VOLTAGE
CH902078A CH625627A5 (en) 1977-08-26 1978-08-25
GB7834710A GB2004657B (en) 1977-08-26 1978-08-25 Method of and an apparatus for continuously detecting insulating defects in low voltage electrical conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7726775A FR2401427A1 (en) 1977-08-26 1977-08-26 LV conductor insulation fault detection - with filtered voltage applied to short electrode with fault signal amplified as voltage drop in double bridge divider connected to converter

Publications (2)

Publication Number Publication Date
FR2401427A1 true FR2401427A1 (en) 1979-03-23
FR2401427B1 FR2401427B1 (en) 1981-09-11

Family

ID=9195015

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726775A Granted FR2401427A1 (en) 1977-08-26 1977-08-26 LV conductor insulation fault detection - with filtered voltage applied to short electrode with fault signal amplified as voltage drop in double bridge divider connected to converter

Country Status (2)

Country Link
BE (1) BE869967A (en)
FR (1) FR2401427A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2735579C1 (en) * 2020-04-07 2020-11-03 федеральное государственное бюджетное образовательное учреждение высшего образования «Томский государственный университет систем управления и радиоэлектроники» Sensor for continuous monitoring of wire insulation faults

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1574325A (en) * 1967-07-10 1969-07-11
DE2435727A1 (en) * 1974-07-25 1976-02-19 Felten & Guilleaume Carlswerk Continuous insulation testing device - is for insulated electric wire, with high DC voltage applied between wire and electrode

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1574325A (en) * 1967-07-10 1969-07-11
DE2435727A1 (en) * 1974-07-25 1976-02-19 Felten & Guilleaume Carlswerk Continuous insulation testing device - is for insulated electric wire, with high DC voltage applied between wire and electrode

Also Published As

Publication number Publication date
BE869967A (en) 1979-02-26
FR2401427B1 (en) 1981-09-11

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse