SG154375A1 - Vacuum switchgear and a method of diagnosing vacuum pressure thereof - Google Patents

Vacuum switchgear and a method of diagnosing vacuum pressure thereof

Info

Publication number
SG154375A1
SG154375A1 SG200809092-0A SG2008090920A SG154375A1 SG 154375 A1 SG154375 A1 SG 154375A1 SG 2008090920 A SG2008090920 A SG 2008090920A SG 154375 A1 SG154375 A1 SG 154375A1
Authority
SG
Singapore
Prior art keywords
vacuum
connecting means
casing
condenser
metal vessel
Prior art date
Application number
SG200809092-0A
Inventor
Ayumu Morita
Kenji Tsuchiya
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 SG154375A1 publication Critical patent/SG154375A1/en

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

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. (Fig. 1)
SG200809092-0A 2008-01-09 2008-12-10 Vacuum switchgear and a method of diagnosing vacuum pressure thereof SG154375A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SG154375A1 true SG154375A1 (en) 2009-08-28

Family

ID=40550565

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200809092-0A SG154375A1 (en) 2008-01-09 2008-12-10 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

Family Cites Families (15)

* 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
JPS61263015A (en) * 1985-05-16 1986-11-21 株式会社明電舎 Vacuum drop detector for vacuum interrupter
JPH01122530A (en) * 1987-11-06 1989-05-15 Mitsubishi Electric Corp Breaking performance deterioration predicting device 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
JP3168751B2 (en) * 1992-04-02 2001-05-21 富士電機株式会社 Method and apparatus for detecting vacuum leak of vacuum valve
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
JP4169024B2 (en) * 2005-09-13 2008-10-22 株式会社日立製作所 Vacuum switchgear
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

Also Published As

Publication number Publication date
JP2009164018A (en) 2009-07-23
EP2079089A2 (en) 2009-07-15
CN101483114A (en) 2009-07-15
EP2079089B1 (en) 2015-09-23
CN101483114B (en) 2013-01-16
TWI404099B (en) 2013-08-01
EP2079089A3 (en) 2010-09-01
JP4686555B2 (en) 2011-05-25
TW200941531A (en) 2009-10-01

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