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EP2079089A3 - Vacuum switchgear and a method of diagnosing vacuum pressure thereof - Google Patents

Vacuum switchgear and a method of diagnosing vacuum pressure thereof Download PDF

Info

Publication number
EP2079089A3
EP2079089A3 EP20080021300 EP08021300A EP2079089A3 EP 2079089 A3 EP2079089 A3 EP 2079089A3 EP 20080021300 EP20080021300 EP 20080021300 EP 08021300 A EP08021300 A EP 08021300A EP 2079089 A3 EP2079089 A3 EP 2079089A3
Authority
EP
European Patent Office
Prior art keywords
vacuum
connecting means
casing
condenser
metal vessel
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
EP20080021300
Other languages
German (de)
French (fr)
Other versions
EP2079089A2 (en
EP2079089B1 (en
Inventor
Ayumu Morita
Kenji Tsuchiya
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
Publication of EP2079089A2 publication Critical patent/EP2079089A2/en
Publication of EP2079089A3 publication Critical patent/EP2079089A3/en
Application granted granted Critical
Publication of EP2079089B1 publication Critical patent/EP2079089B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/668—Means for obtaining or monitoring the vacuum

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A vacuum switchgear comprising: a casing; a vacuum switch, enclosed in the casing, comprising a metal vessel covered with a solid insulator, the surface of the insulator being covered with a conductive layer to be earthed, a pair of movable electrode and a fixed electrode to constitute a main circuit, enclosed in the metal vessel; a first condenser connected to the terminal on the solid insulator. A first electric connection means and second connecting means are disposed to the casing, and the first connecting means is connected to a first condenser and the second connecting means is connected to the second condenser. A voltage indicator that indicates a status of vacuum of the metal vessel and a status of power application to a main circuit of the switch section is electrically connected to either the first or second connecting means.
EP08021300.2A 2008-01-09 2008-12-08 Vacuum switchgear and a method of diagnosing vacuum pressure thereof Not-in-force EP2079089B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008001750A JP4686555B2 (en) 2008-01-09 2008-01-09 Vacuum switchgear

Publications (3)

Publication Number Publication Date
EP2079089A2 EP2079089A2 (en) 2009-07-15
EP2079089A3 true EP2079089A3 (en) 2010-09-01
EP2079089B1 EP2079089B1 (en) 2015-09-23

Family

ID=40550565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08021300.2A Not-in-force EP2079089B1 (en) 2008-01-09 2008-12-08 Vacuum switchgear and a method of diagnosing vacuum pressure thereof

Country Status (5)

Country Link
EP (1) EP2079089B1 (en)
JP (1) JP4686555B2 (en)
CN (1) CN101483114B (en)
SG (1) SG154375A1 (en)
TW (1) TWI404099B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5350317B2 (en) * 2009-09-30 2013-11-27 株式会社日立製作所 Vacuum switch, electrode for switch or manufacturing method of vacuum switch
JP4982579B2 (en) * 2010-03-12 2012-07-25 株式会社日立製作所 Switchgear and switchgear interlocking test method
TWI485736B (en) * 2010-03-25 2015-05-21 Hitachi Ltd Vacuum switch and vacuum insulated switchgear
CN102280300A (en) * 2011-05-23 2011-12-14 宏秀电气(安徽)有限公司 Touchable high-voltage breaker
JP6235830B2 (en) * 2013-08-22 2017-11-22 株式会社日立産機システム Voltage detector and switchgear provided with the same
CN106356246B (en) * 2016-11-03 2018-11-16 韩润萍 A kind of vacuum circuit-breaker arc extinguishing chamber vacuum degree on-Line Monitor Device
CN110092571A (en) * 2019-06-13 2019-08-06 新沂市骄阳石英有限公司 A kind of quartz sand smelting furnace pressure alarm set

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61263015A (en) * 1985-05-16 1986-11-21 株式会社明電舎 Vacuum drop detector for vacuum interrupter
US4937698A (en) * 1987-11-06 1990-06-26 Mitsubishi Denki Kabushiki Kaisha System for foreseeing deterioration in interrupting performance of vacuum interrupter
DE4310619A1 (en) * 1992-04-02 1993-10-14 Fuji Electric Co Ltd Method and apparatus for detecting a reduction in the degree of vacuum in a vacuum switching valve
EP1763049A1 (en) * 2005-09-13 2007-03-14 Hitachi, Ltd. Vacuum switchgear

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132829B1 (en) * 1969-04-11 1976-09-16
JPS644203Y2 (en) * 1981-04-22 1989-02-03
JPS5933719A (en) * 1982-08-17 1984-02-23 株式会社明電舎 Vacuum degree monitor for vacuum breaker
JPS5923423A (en) * 1982-07-30 1984-02-06 株式会社明電舎 Vacuum degree monitor for vacuum breaker
JPH0325714A (en) * 1989-06-22 1991-02-04 Sharp Corp Magneto-resistance effect type thin-film magnetic head
JP2705266B2 (en) * 1989-10-04 1998-01-28 富士電機株式会社 Vacuum valve switchgear
JP2885233B2 (en) * 1989-10-04 1999-04-19 富士電機株式会社 Vacuum drop detector for vacuum valve type switchgear
JPH09261813A (en) * 1996-03-26 1997-10-03 Nissin Electric Co Ltd Gas insulated switchgear
JP4953415B2 (en) 2005-09-12 2012-06-13 内山工業株式会社 Gasket integrated molding method and component for fuel cell component
JP4197702B2 (en) * 2006-01-31 2008-12-17 株式会社日立製作所 Vacuum insulated switchgear
JP4984577B2 (en) * 2006-03-08 2012-07-25 株式会社戸上電機製作所 Switch with voltage detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61263015A (en) * 1985-05-16 1986-11-21 株式会社明電舎 Vacuum drop detector for vacuum interrupter
US4937698A (en) * 1987-11-06 1990-06-26 Mitsubishi Denki Kabushiki Kaisha System for foreseeing deterioration in interrupting performance of vacuum interrupter
DE4310619A1 (en) * 1992-04-02 1993-10-14 Fuji Electric Co Ltd Method and apparatus for detecting a reduction in the degree of vacuum in a vacuum switching valve
EP1763049A1 (en) * 2005-09-13 2007-03-14 Hitachi, Ltd. Vacuum switchgear

Also Published As

Publication number Publication date
EP2079089A2 (en) 2009-07-15
CN101483114A (en) 2009-07-15
TW200941531A (en) 2009-10-01
TWI404099B (en) 2013-08-01
EP2079089B1 (en) 2015-09-23
JP4686555B2 (en) 2011-05-25
CN101483114B (en) 2013-01-16
JP2009164018A (en) 2009-07-23
SG154375A1 (en) 2009-08-28

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