EP3872829A4 - Gas circuit breaker - Google Patents

Gas circuit breaker Download PDF

Info

Publication number
EP3872829A4
EP3872829A4 EP19877047.1A EP19877047A EP3872829A4 EP 3872829 A4 EP3872829 A4 EP 3872829A4 EP 19877047 A EP19877047 A EP 19877047A EP 3872829 A4 EP3872829 A4 EP 3872829A4
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
gas circuit
gas
breaker
circuit
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
EP19877047.1A
Other languages
German (de)
French (fr)
Other versions
EP3872829A1 (en
EP3872829B1 (en
Inventor
Motohiro Sato
Daisaku Yamada
Yasunori Nakamura
Shimpei NAKA
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP3872829A1 publication Critical patent/EP3872829A1/en
Publication of EP3872829A4 publication Critical patent/EP3872829A4/en
Application granted granted Critical
Publication of EP3872829B1 publication Critical patent/EP3872829B1/en
Active 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • H01H33/703—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle having special gas flow directing elements, e.g. grooves, extensions
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H2033/888—Deflection of hot gasses and arcing products
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H2033/908—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
EP19877047.1A 2018-10-24 2019-09-24 Gas circuit breaker Active EP3872829B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018200097 2018-10-24
PCT/JP2019/037360 WO2020084984A1 (en) 2018-10-24 2019-09-24 Gas circuit breaker

Publications (3)

Publication Number Publication Date
EP3872829A1 EP3872829A1 (en) 2021-09-01
EP3872829A4 true EP3872829A4 (en) 2021-12-22
EP3872829B1 EP3872829B1 (en) 2024-07-10

Family

ID=70330985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19877047.1A Active EP3872829B1 (en) 2018-10-24 2019-09-24 Gas circuit breaker

Country Status (3)

Country Link
EP (1) EP3872829B1 (en)
JP (1) JP6961105B2 (en)
WO (1) WO2020084984A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946180A (en) * 1974-04-22 1976-03-23 I-T-E Imperial Corporation Downstream injection nozzle for puffer circuit interrupter
DE2710868A1 (en) * 1977-03-12 1978-09-14 Licentia Gmbh Automatic pneumatic power switch insulating nozzle - has many radial blow holes to cause turbulence and thereby raise power rating
EP0100749A1 (en) * 1982-07-19 1984-02-15 Fuji Electric Co., Ltd. Interrupting chamber for a compressed-air circuit breaker
US20130161289A1 (en) * 2010-12-07 2013-06-27 Mitsubishi Electric Corporation Gas circuit breaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61118919A (en) * 1984-11-14 1986-06-06 株式会社東芝 Gas insulated breaker
JPH04284319A (en) * 1991-03-13 1992-10-08 Hitachi Ltd Gas-blast circuit breaker
JP3132573B2 (en) * 1991-03-18 2001-02-05 富士電機株式会社 Puffer type gas circuit breaker
JP2003297200A (en) 2002-04-01 2003-10-17 Toshiba Corp Gas-blast circuit breaker
JP2012054097A (en) * 2010-09-01 2012-03-15 Mitsubishi Electric Corp Gas-blast circuit breaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946180A (en) * 1974-04-22 1976-03-23 I-T-E Imperial Corporation Downstream injection nozzle for puffer circuit interrupter
DE2710868A1 (en) * 1977-03-12 1978-09-14 Licentia Gmbh Automatic pneumatic power switch insulating nozzle - has many radial blow holes to cause turbulence and thereby raise power rating
EP0100749A1 (en) * 1982-07-19 1984-02-15 Fuji Electric Co., Ltd. Interrupting chamber for a compressed-air circuit breaker
US20130161289A1 (en) * 2010-12-07 2013-06-27 Mitsubishi Electric Corporation Gas circuit breaker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020084984A1 *

Also Published As

Publication number Publication date
EP3872829A1 (en) 2021-09-01
WO2020084984A1 (en) 2020-04-30
JP6961105B2 (en) 2021-11-05
JPWO2020084984A1 (en) 2021-04-30
EP3872829B1 (en) 2024-07-10

Similar Documents

Publication Publication Date Title
EP3811441A4 (en) Circuit breakers
EP3678155A4 (en) Circuit breaker
EP3905294A4 (en) Miniature circuit breaker
EP3761491A4 (en) Switching circuit
ZA201908082B (en) Circuit breaker
EP3780059A4 (en) Circuit breaker
EP3905295A4 (en) Miniature circuit breaker
EP3740959A4 (en) Circuit breaker lockout device
EP4060705A4 (en) Plug-in circuit breaker
EP3641082A4 (en) Gas insulated switchgear
EP3979292A4 (en) Direct-current circuit breaker
EP3905297A4 (en) Compact circuit breaker
EP3811393A4 (en) Breaker auto-synchronizer
GB201903018D0 (en) Circuit breaker
EP3832818A4 (en) Switchgear
EP4060711A4 (en) Plug-in circuit breaker
EP4060712A4 (en) Circuit breaker
EP3595113A4 (en) Electronic circuit breaker
EP3905296A4 (en) Miniature circuit breaker
EP4068326A4 (en) Direct-current circuit breaker
EP3770939A4 (en) Circuit interrupter
EP3896714A4 (en) Direct-current circuit breaker
GB2579636B (en) Circuit breaker
EP3920203A4 (en) Vacuum-circuit breaker
EP3584897A4 (en) Circuit breaker

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210416

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20211123

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 33/915 20060101AFI20211117BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240220

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED