JPS576368A - Method for detecting partial discharge of power cable - Google Patents

Method for detecting partial discharge of power cable

Info

Publication number
JPS576368A
JPS576368A JP7952880A JP7952880A JPS576368A JP S576368 A JPS576368 A JP S576368A JP 7952880 A JP7952880 A JP 7952880A JP 7952880 A JP7952880 A JP 7952880A JP S576368 A JPS576368 A JP S576368A
Authority
JP
Japan
Prior art keywords
bar
signal
ring
inclusion
converter
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.)
Pending
Application number
JP7952880A
Other languages
Japanese (ja)
Inventor
Keiji Kai
Masakatsu Arakane
Kiyoshi Sakai
Toshio Kasahara
Kazunobu Takayanagi
Mitsugi Aihara
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.)
Chubu Electric Power Co Inc
SWCC Corp
Original Assignee
Chubu Electric Power Co Inc
Showa Electric Wire and Cable 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 Chubu Electric Power Co Inc, Showa Electric Wire and Cable Co filed Critical Chubu Electric Power Co Inc
Priority to JP7952880A priority Critical patent/JPS576368A/en
Publication of JPS576368A publication Critical patent/JPS576368A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

PURPOSE:To make the possibility of inclusion of external noises extremely less by performing signal detection in the shielding ring on a cable head nearest to the cable to be tested and transmitting the signal up to an analyzing device. CONSTITUTION:In the figure, 11 is the leading end of a bushing mounted to a cable head, and a conductor pull-out bar 12 is projecting from the upper part thereof. A shielding ring 13 is connected to the top part of the bar 12 and a high voltage power source wire 14 is connected via the bar 12 to the ring 13. An impedance circuit 16 is inserted between the ring 13 and the bar 12 by a separator 15. An amplifier 18 and a converter 19 are connected across the circuit 16 via a voltage deviding capacitor 17. The converter 19 converts the electric signal to a light signal and transmits the same to an optical fiber 20. Thereby, the possibility of inclusion of external noises in the detection signal is made extremely less and safty is enhanced.
JP7952880A 1980-06-12 1980-06-12 Method for detecting partial discharge of power cable Pending JPS576368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7952880A JPS576368A (en) 1980-06-12 1980-06-12 Method for detecting partial discharge of power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7952880A JPS576368A (en) 1980-06-12 1980-06-12 Method for detecting partial discharge of power cable

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP78990A Division JPH03162684A (en) 1990-01-06 1990-01-06 Method for detecting partial discharge of power cable

Publications (1)

Publication Number Publication Date
JPS576368A true JPS576368A (en) 1982-01-13

Family

ID=13692478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7952880A Pending JPS576368A (en) 1980-06-12 1980-06-12 Method for detecting partial discharge of power cable

Country Status (1)

Country Link
JP (1) JPS576368A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61187670A (en) * 1985-02-15 1986-08-21 Showa Electric Wire & Cable Co Ltd Apparatus for testing insulation of power cable
JPS61218958A (en) * 1985-03-25 1986-09-29 Showa Electric Wire & Cable Co Ltd Method for measuring partial discharge of power cable
JPS6399281U (en) * 1986-12-19 1988-06-27
CN103760459A (en) * 2014-02-18 2014-04-30 常州江南电力环境工程有限公司 Detector for cable fracture positions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61187670A (en) * 1985-02-15 1986-08-21 Showa Electric Wire & Cable Co Ltd Apparatus for testing insulation of power cable
JPS61218958A (en) * 1985-03-25 1986-09-29 Showa Electric Wire & Cable Co Ltd Method for measuring partial discharge of power cable
JPS6399281U (en) * 1986-12-19 1988-06-27
CN103760459A (en) * 2014-02-18 2014-04-30 常州江南电力环境工程有限公司 Detector for cable fracture positions

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