JPS6491068A - Detection and test for foreign metal matter in gas insulated switch - Google Patents

Detection and test for foreign metal matter in gas insulated switch

Info

Publication number
JPS6491068A
JPS6491068A JP62247868A JP24786887A JPS6491068A JP S6491068 A JPS6491068 A JP S6491068A JP 62247868 A JP62247868 A JP 62247868A JP 24786887 A JP24786887 A JP 24786887A JP S6491068 A JPS6491068 A JP S6491068A
Authority
JP
Japan
Prior art keywords
voltage
breaker
test
gas insulated
insulated switch
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
JP62247868A
Other languages
Japanese (ja)
Inventor
Kazuhiro Saito
Masaru Fukuoka
Koji Sasaki
Isao Nishida
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62247868A priority Critical patent/JPS6491068A/en
Publication of JPS6491068A publication Critical patent/JPS6491068A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Relating To Insulation (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

PURPOSE:To detect a foreign metallic matter with a small diameter existing inside, by closing a breaker within 100msec to apply an AC voltage to a gas insulated switch after a voltage is applied to a fixed level on one side thereof with the breaker opened. CONSTITUTION:A gas insulated switch (GSI) 1 normally has breaking devices 3 and 4 arranged on both sides of a breaker 2. The breaker 2 is opened while the breaking devices 3 and 4 are closed. Then, an AC withstand voltage tester 8 is connected to a bushing 7 on the side of the breaking device 3 to be charged with an AC testing transformer to an AC test voltage value and then, by the operation of closing the breaker 12, a specified value of AC voltage is applied as rush current to the GSI1 within 100msec. Then, a test value of AC voltage is applied as rush current repeatedly within 100msec while raising the test voltage value. This facilitates detection of a metallic foreign matter with a small diameter which may exist in the GIS1 depending on the phenomenon of dielectric breakdown thereby achieving a higher insulation reliability thereof 1.
JP62247868A 1987-10-02 1987-10-02 Detection and test for foreign metal matter in gas insulated switch Pending JPS6491068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62247868A JPS6491068A (en) 1987-10-02 1987-10-02 Detection and test for foreign metal matter in gas insulated switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62247868A JPS6491068A (en) 1987-10-02 1987-10-02 Detection and test for foreign metal matter in gas insulated switch

Publications (1)

Publication Number Publication Date
JPS6491068A true JPS6491068A (en) 1989-04-10

Family

ID=17169823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62247868A Pending JPS6491068A (en) 1987-10-02 1987-10-02 Detection and test for foreign metal matter in gas insulated switch

Country Status (1)

Country Link
JP (1) JPS6491068A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010169069A (en) * 2009-01-26 2010-08-05 Sumitomo (Shi) Construction Machinery Co Ltd Fuel supply line air bleeding device of construction machine
CN103852698A (en) * 2014-03-28 2014-06-11 国网上海市电力公司 Insulation strength testing device applicable to breaker vacuum arc-extinguishing chambers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010169069A (en) * 2009-01-26 2010-08-05 Sumitomo (Shi) Construction Machinery Co Ltd Fuel supply line air bleeding device of construction machine
CN103852698A (en) * 2014-03-28 2014-06-11 国网上海市电力公司 Insulation strength testing device applicable to breaker vacuum arc-extinguishing chambers

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