JPS5735768A - Detection of traveling speed of arc - Google Patents

Detection of traveling speed of arc

Info

Publication number
JPS5735768A
JPS5735768A JP11041380A JP11041380A JPS5735768A JP S5735768 A JPS5735768 A JP S5735768A JP 11041380 A JP11041380 A JP 11041380A JP 11041380 A JP11041380 A JP 11041380A JP S5735768 A JPS5735768 A JP S5735768A
Authority
JP
Japan
Prior art keywords
arc
container
coil
traveling speed
arc current
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
JP11041380A
Other languages
Japanese (ja)
Inventor
Hiroshi Miura
Eisaku Nakamura
Shoji Yamashita
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11041380A priority Critical patent/JPS5735768A/en
Publication of JPS5735768A publication Critical patent/JPS5735768A/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
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps

Abstract

PURPOSE:To detect traveling speed of an arc by detecting successively the magnetic field due to an arc generated between a central conductor and a container using detecting elements arranged on the outer circumference of the container. CONSTITUTION:A ground fault arc detecting coil 10 is fitted in close contact on the outer circumference of a container 2 of an aerial cable 1, and terminals 10a, 10b are connected to a measuring device such as an electromagnetic oscillograph. To catch the movement of arc current only, a modle in which the direction of arc current 11 is shown by a large arrow is considered. The radial direction of the container 2 of arc current 11 changes irregularly from the nature of arc plasma that involves many variable factors. Considering that the movement in axial direction advances with time in a direction away from the power source, magnetic flux phi generated by strong arc current 11 leaks from the container 1. Accordingly, by placing a decting coil 10 at a position that crosses the magnetic line of force, electromotive force caused by magnetic flux phi can be taken out by the coil 10 and the traveling speed of the arc can be detected.
JP11041380A 1980-08-13 1980-08-13 Detection of traveling speed of arc Pending JPS5735768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11041380A JPS5735768A (en) 1980-08-13 1980-08-13 Detection of traveling speed of arc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11041380A JPS5735768A (en) 1980-08-13 1980-08-13 Detection of traveling speed of arc

Publications (1)

Publication Number Publication Date
JPS5735768A true JPS5735768A (en) 1982-02-26

Family

ID=14535141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11041380A Pending JPS5735768A (en) 1980-08-13 1980-08-13 Detection of traveling speed of arc

Country Status (1)

Country Link
JP (1) JPS5735768A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006019164A1 (en) * 2004-08-20 2006-02-23 Kabushiki Kaisha Toshiba Device and method for detecting partial discharge of rotary electric machine
WO2011161210A1 (en) * 2010-06-23 2011-12-29 Alstom Grid Sas Method of locating an internal arc in a gas insulated line and associated device
CN113064034A (en) * 2020-03-30 2021-07-02 深圳友讯达科技股份有限公司 Intelligent meter box safety protection monitoring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006019164A1 (en) * 2004-08-20 2006-02-23 Kabushiki Kaisha Toshiba Device and method for detecting partial discharge of rotary electric machine
WO2011161210A1 (en) * 2010-06-23 2011-12-29 Alstom Grid Sas Method of locating an internal arc in a gas insulated line and associated device
FR2961910A1 (en) * 2010-06-23 2011-12-30 Areva T & D Sas METHOD FOR LOCATING INTERNAL ARC IN A GAS INSULATED LINE AND DEVICE THEREOF
US9702922B2 (en) 2010-06-23 2017-07-11 Alstom Technology Ltd Method of locating internal arcing in a gas-insulated line and an associated device
CN113064034A (en) * 2020-03-30 2021-07-02 深圳友讯达科技股份有限公司 Intelligent meter box safety protection monitoring device

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