WO2013030963A1 - ガス遮断器 - Google Patents
ガス遮断器 Download PDFInfo
- Publication number
- WO2013030963A1 WO2013030963A1 PCT/JP2011/069661 JP2011069661W WO2013030963A1 WO 2013030963 A1 WO2013030963 A1 WO 2013030963A1 JP 2011069661 W JP2011069661 W JP 2011069661W WO 2013030963 A1 WO2013030963 A1 WO 2013030963A1
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- WIPO (PCT)
- Prior art keywords
- contact
- puffer
- movable
- fixed
- conductor container
- Prior art date
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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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
-
- 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
- H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle
- H01H33/7046—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting 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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
-
- 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
Definitions
- the present invention relates to a puffer type gas circuit breaker.
- a puffer-type gas circuit breaker that is installed in an electric station such as a substation or a switching station and extinguishes an arc generated between contacts by blowing insulating gas is used.
- an electric station such as a substation or a switching station and extinguishes an arc generated between contacts by blowing insulating gas
- a movable contact hereinafter also referred to as a movable arc contact
- a heat puffer chamber formed and a mechanical puffer chamber in the radial direction adjacent to the heat puffer chamber are disclosed.
- Such a gas circuit breaker is expected to suppress the temperature rise due to the energization current and to improve the heat dissipation efficiency of the generated heat.
- the present invention has been made in view of the above, and an object of the present invention is to obtain a gas circuit breaker capable of suppressing a temperature rise due to an energizing current and improving heat dissipation efficiency of generated heat.
- the present invention has a first conductive container and a second conductive container provided with an insulating cylinder in between, and a sealed tank filled with an insulating gas.
- a fixed arc contact provided on the first conductor container side
- a movable arc contact provided on the second conductor container side and movable in contact with and away from the fixed arc contact, and provided on the first conductor container side
- a movable energizing contact that moves in accordance with the contact and separation of the movable arc contact and moves to and from the fixed energizing contact, and a movable energizing contact provided on the second conductor container side.
- the present invention by exposing the puffer part to the outer periphery of the sealed tank, it becomes easy to radiate the heat generated through the puffer part to the outside, and it is possible to suppress the temperature rise and improve the heat radiation efficiency. .
- FIG. 1 is a cross-sectional view showing an energized state of the gas circuit breaker according to the first exemplary embodiment of the present invention.
- 2 is a cross-sectional view taken along line AA shown in FIG.
- FIG. 3 is a cross-sectional view of the gas circuit breaker according to the first modification of the first embodiment.
- 4 is a cross-sectional view taken along line BB shown in FIG.
- FIG. 5 is sectional drawing which shows the electricity supply state of the gas circuit breaker concerning Embodiment 2 of this invention.
- FIG. 1 is a cross-sectional view showing an energized state of the gas circuit breaker according to the first exemplary embodiment of the present invention.
- 2 is a cross-sectional view taken along line AA shown in FIG. In FIG. 1, hatching for components other than the puffer unit 4 is omitted.
- the gas circuit breaker 100 includes a sealed tank 20 and an opening / closing part 30.
- the sealed tank 20 includes a fixed cylindrical conductor (first conductor container) 1, a movable cylindrical conductor (second conductor container) 2, an insulating cylinder 3, and a puffer part 4, and accommodates an opening / closing part 30 therein. A sealed space is formed.
- the fixed-side cylindrical conductor 1, the movable-side cylindrical conductor 2, and the puffer portion 4 are made of a conductor such as metal.
- the fixed-side cylindrical conductor 1 and the movable-side cylindrical conductor 2 are arranged with an insulating cylinder 3 interposed therebetween.
- a puffer portion 4 is interposed between the movable cylindrical conductor 2 and the insulating cylinder 3.
- the insulating cylinder 3 is made of an insulating material such as an epoxy resin.
- the insulating cylinder 3 is provided between the fixed-side cylindrical conductor 1 and the puffer part 4 to prevent a direct current from flowing between the movable-side cylindrical conductor 2 and the puffer part 4 and the fixed-side cylindrical conductor 1. .
- the insulating tank 20 is filled with an insulating gas such as sulfur hexafluoride (SF6).
- the sealed tank 20 is supported by the support insulator 14.
- An operation device 15 is provided below the sealed tank 20.
- An opening / closing operation of the opening / closing part 30 is performed by the operating device 15 via the insulating operation rod 13 made of an insulating member and the link mechanism 16.
- the opening / closing part 30 includes a fixed energizing contact 12, a movable energizing contact 11, a fixed arc contact 9, and a movable arc contact 10.
- the fixed energizing contact 12 is electrically connected to the fixed cylindrical conductor 1.
- a movable energizing contact 11 is provided so as to face the fixed energizing contact 12.
- the movable energizing contact 11 is connected to the link mechanism 16 and can be reciprocated in the directions indicated by the arrows X and Y by the operating device 15.
- the movable energizing contact 11 can reciprocate so as to be able to contact and separate from the fixed energizing contact 12.
- the movable energizing contact 11 is a cylindrical piston.
- the fixed arc contact 9 is electrically connected to the fixed cylindrical conductor 1.
- a movable arc contact 10 is provided so as to face the fixed arc contact 9.
- the movable arc contact 10 is connected to the link mechanism 16 in the same manner as the movable energizing contact 11, and is linked to the movable energizing contact 11 by the operating device 15 in the directions indicated by the arrows X and Y along the axis Z. It is possible to move back and forth.
- the movable arc contact 10 can be moved to and away from the fixed arc contact 9 by reciprocating.
- the movable arc contact 10 is configured to be separated from the fixed arc contact 9 after the fixed energization contact 12 and the movable energization contact 11 are separated in the process of moving in the direction indicated by the arrow X. Yes.
- the puffer portion 4 is formed with a mechanical puffer chamber 5 as a cylinder for accommodating the movable energizing contact 11 therein.
- the internal volume of the mechanical puffer chamber 5 changes due to the movement of the movable energizing contact 11, and in particular, the internal volume decreases by moving in a direction away from the fixed energizing contact 12 (direction indicated by arrow X). To do.
- the puffer unit 4 forms a heat puffer chamber 7 around the fixed arc contact 9. Specifically, a part of the wall surface constituting the heat puffer chamber 7 is constituted by the puffer portion 4.
- the heat puffer chamber 7 is configured as a space surrounded by the puffer portion 4, the fixed-side cylindrical conductor 1, the fixed arc contact 9, and the insulator 8.
- the insulator 8 blocks between the puffer portion 4 and the fixed-side cylindrical conductor 1.
- the insulator 8 blocks between the puffer portion 4 and the fixed energizing contact 12.
- a gap is provided between the fixed energizing contact 12 and the insulator 18, and this gap is in the vicinity of the contact portion between the fixed arc contact 9 and the movable arc contact 10 (hereinafter referred to as an arc generation region). ) Becomes an outlet 17 for blowing out insulating gas.
- the puffer section 4 is formed with a blow-out flow path 6 for communicating the mechanical puffer chamber 5 and the heat puffer chamber 7. Further, the outer peripheral surface of the puffer portion 4 is exposed to the outside of the sealed tank 20. On the outer peripheral surface of the puffer portion 4, heat radiating fins 4a having a fin shape are formed.
- the puffer portion 4 is formed integrally as a whole, and in particular, a portion constituting the mechanical puffer chamber 5 and a portion constituting the heat puffer chamber 7 are integrally formed. Thereby, the movable-side cylindrical conductor 2 and the movable energizing contact 11 are electrically connected by the puffer portion 4 as an integrally formed conductor.
- the breaking operation of the gas circuit breaker 100 will be described.
- the movable energizing contact 11 is separated from the fixed energizing contact 12, and then the movable arc contact 10 is separated from the fixed arc contact 9.
- An arc is generated in the arc generation region between the movable arc contact 10 and the fixed arc contact 9 by this breaking operation.
- the insulating gas in the arc generation region is heated and pressurized by the arc energy and accumulated in the heat puffer chamber 7. Thereafter, as the current zero point is approached, the heating pressure increase in the arc generation region decreases, so that the high-pressure insulating gas stored in the heat puffer chamber 7 blows out from the blowout port 17 and is blown to the arc in the arc generation region. As a result, the arc is extinguished and the current is interrupted.
- the volume of the mechanical puffer chamber 5 decreases with the opening operation of the movable energizing contact 11.
- the insulating gas in the mechanical puffer chamber 5 is compressed, and the cold insulating gas flows into the heat puffer chamber 7 through the blowout flow path 6.
- the pressure in the heat puffer chamber 7 rises, the insulating gas blows out from the blowout port 17 and is blown to the arc generation region, whereby the arc is extinguished and the current is interrupted.
- the insulating gas in the arc generation region is not heated so much, so the pressure in the heat puffer chamber 7 does not increase so much.
- the insulating gas is compressed in the mechanical puffer chamber 5 with the opening operation of the movable energizing contact 11. Therefore, when the insulating gas is blown onto the arc generation region, the arc is extinguished to interrupt the current, and the insulating performance is recovered.
- the movable arc contact 10 and the fixed arc contact 9 are connected, and then the movable energization contact 11 and the fixed energization contact 12 are connected to energize the current. Heat is generated by the electrical resistance of the conductor in the current path.
- the puffer portion 4 is disposed between the insulating cylinder 3 and the movable cylindrical conductor 2, and the outer peripheral surface thereof is exposed to the outside of the sealed tank 20. It is easy to dissipate the heat generated by the outside through the puffer portion 4. Further, since the heat radiating fins 4a are formed on the outer peripheral surface of the puffer portion 4, the heat dissipation area can be increased by increasing the contact area to the outside air, and the cooling effect can be improved.
- the puffer portion 4 is provided so as to be exposed to the outside of the sealed tank 20, the puffer portion 4 can be easily formed larger. Thereby, the energization area in the puffer part 4 can be increased, and the electrical resistance can be reduced. And the heat_generation
- the puffer section 4 is formed with a mechanical puffer chamber 5, a heat puffer chamber 7, and a blow-out flow path 6, which are integrally formed as a whole.
- the conductor between the movable cylindrical conductor 2 and the movable energizing contact 11 in the energization path can be configured only by the puffer portion 4.
- the connection part of conductors can be reduced and reduction in electrical resistance can be aimed at.
- fever in the puffer part 4 can be suppressed by aiming at the fall of electrical resistance.
- the number of parts can be reduced and the manufacturing cost can be suppressed.
- FIG. 3 is a cross-sectional view of the gas circuit breaker 100 according to the first modification of the first embodiment.
- 4 is a cross-sectional view taken along line BB shown in FIG. In FIG. 4, the hatching of components other than the puffer unit 4 is omitted.
- the movable energizing contact 21 has an annular shape centered on the axis Z. Therefore, the mechanical puffer chamber 25 as a cylinder in which the movable energizing contact 21 is accommodated is also formed in an annular shape centering on the axis Z.
- the gas circuit breaker 100 can be reduced in size in the circumferential direction.
- the puffer portion 4 may be configured as a separate conductor inside and outside the mechanical puffer chamber 25.
- the puffer part 4 is exposed to the outside of the sealed tank 20, the puffer part 4 It is possible to increase the current-carrying area and reduce the electrical resistance.
- FIG. FIG. 5 is sectional drawing which shows the electricity supply state of the gas circuit breaker concerning Embodiment 2 of this invention.
- symbol is attached
- the hermetic tank 20 includes the fixed-side cylindrical conductor 1, the movable-side cylindrical conductor 2, and the insulating cylinder 33. Therefore, the insulating cylinder 33 is in direct contact with the movable cylindrical conductor 2.
- the puffer part 34 is disposed inside the insulating cylinder 33 and is not exposed to the outside of the sealed tank 20.
- the energization area in the puffer portion 34 is increased, and the electrical resistance is reduced. Can be planned.
- the connection portion between the conductors can be reduced and the electrical resistance can be lowered. it can. And the heat_generation
- the number of parts can be reduced and the manufacturing cost can be suppressed.
- the gas circuit breaker according to the present invention is useful for a gas circuit breaker in which an insulating gas is filled in an airtight container.
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
図1は、本発明の実施の形態1にかかるガス遮断器の通電状態を示す断面図である。図2は、図1に示すA-A線に沿った矢視断面図である。なお、図1において、パッファ部4以外の構成要素に対するハッチングを省略して示している。
図5は、本発明の実施の形態2にかかるガス遮断器の通電状態を示す断面図である。なお、上記実施の形態と同様の構成については、同様の符号を付して詳細な説明を省略する。
2 可動側円筒導体(第2導体容器)
3 絶縁筒
4 パッファ部
4a 放熱フィン
5 機械パッファ室
6 吹出し流路
7 熱パッファ室
8 絶縁物
9 固定アーク接触子
10 可動アーク接触子
11 可動通電接触子
12 固定通電接触子
13 絶縁操作ロッド
14 支持絶縁物
15 操作装置
16 リンク機構
17 吹出口
20 密閉タンク
21 可動通電接触子
25 機械パッファ室
30 開閉部
33 絶縁筒
34 パッファ部
100,200 ガス遮断器
X,Y 矢印
Z 軸線
Claims (7)
- 絶縁筒を挟んで設けられた第1導体容器と第2導体容器とを有し、絶縁ガスが内部に充填された密閉タンクと、
前記第1導体容器側に設けられた固定アーク接触子と、
前記第2導体容器側に設けられて前記固定アーク接触子と接離可能に移動する可動アーク接触子と、
前記第1導体容器側に設けられた固定通電接触子と、
前記可動アーク接触子の接離に合わせて移動して前記固定通電接触子に接離する可動通電接触子と、
前記第2導体容側に設けられて、前記可動通電接触子を内部に収容するシリンダで構成された機械パッファ室が形成されたパッファ部と、を備え、
前記パッファ部は、前記絶縁筒と前記第2導体容器との間に配置されて、前記密閉タンクの外周に露出されることを特徴とするガス遮断器。 - 前記パッファ部の外周面には、フィン形状が形成されることを特徴とする請求項1に記載のガス遮断器。
- 前記パッファ部は、前記可動アーク接触子と前記固定アーク接触子との接離部分の周囲を囲む熱パッファ室の少なくとも一部を構成することを特徴とする請求項1または2に記載のガス遮断器。
- 前記パッファ部には、前記機械パッファ室と前記熱パッファ室を連通させる吹出し流路が形成されることを特徴とする請求項3に記載のガス遮断器。
- 前記パッファ部は、前記機械パッファ室を構成する部分と前記熱パッファ室を構成する部分とが一体に形成されており、
前記第2導体容器と前記可動通電接触子とが、前記パッファ部によって電気的に接続されることを特徴とする請求項3または4に記載のガス遮断器。 - 前記可動通電接触子および前記機械パッファ室は、前記可動アーク接触子の軸線を中心とする円環形状を呈することを特徴とする請求項1~4のいずれか1つに記載のガス遮断器。
- 絶縁筒を挟んで設けられた第1導体容器と第2導体容器とを有し、絶縁ガスが内部に充填された密閉タンクと、
前記第1導体容器側に設けられた固定アーク接触子と、
前記第2導体容器側に設けられて前記固定アーク接触子と接離可能に移動する可動アーク接触子と、
前記第1導体容器側に設けられた固定通電接触子と、
前記可動アーク接触子の接離に合わせて移動して前記固定通電接触子に接離する可動通電接触子と、
前記第2導体容器側に設けられて、前記可動通電接触子を内部に収容するシリンダで構成された機械パッファ室が形成されたパッファ部と、を備え、
前記パッファ部は、前記絶縁筒の内側に配置されて、前記可動通電接触子と前記絶縁筒との間を塞ぐことを特徴とするガス遮断器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/119,635 US9165732B2 (en) | 2011-08-30 | 2011-08-30 | Gas circuit breaker |
PCT/JP2011/069661 WO2013030963A1 (ja) | 2011-08-30 | 2011-08-30 | ガス遮断器 |
CN201180072501.5A CN103703533B (zh) | 2011-08-30 | 2011-08-30 | 气体断路器 |
JP2012507500A JP4989794B1 (ja) | 2011-08-30 | 2011-08-30 | ガス遮断器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/069661 WO2013030963A1 (ja) | 2011-08-30 | 2011-08-30 | ガス遮断器 |
Publications (1)
Publication Number | Publication Date |
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WO2013030963A1 true WO2013030963A1 (ja) | 2013-03-07 |
Family
ID=46793837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/069661 WO2013030963A1 (ja) | 2011-08-30 | 2011-08-30 | ガス遮断器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9165732B2 (ja) |
JP (1) | JP4989794B1 (ja) |
CN (1) | CN103703533B (ja) |
WO (1) | WO2013030963A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11545322B2 (en) | 2018-10-26 | 2023-01-03 | Kabushiki Kaisha Toshiba | Gas circuit breaker |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6157824B2 (ja) * | 2012-09-28 | 2017-07-05 | 株式会社東芝 | ガス遮断器 |
US9305726B2 (en) * | 2014-08-27 | 2016-04-05 | Eaton Corporation | Arc extinguishing contact assembly for a circuit breaker assembly |
US9991064B2 (en) * | 2016-08-10 | 2018-06-05 | Abb Schweiz Ag | SF6 insulated circuit breaker system with thermal capacitor |
EP3385969B1 (en) * | 2017-04-07 | 2021-10-20 | ABB Power Grids Switzerland AG | Gas-insulated circuit breaker and a method for breaking an electrical connection |
US11217408B2 (en) * | 2017-11-10 | 2022-01-04 | Kabushiki Kaisha Toshiba | Gas circuit breaker |
JP7135199B2 (ja) * | 2019-03-19 | 2022-09-12 | 株式会社東芝 | ガス遮断器 |
JP7119217B2 (ja) * | 2019-04-02 | 2022-08-16 | 株式会社東芝 | ガス遮断器 |
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JPS5491770A (en) * | 1977-12-29 | 1979-07-20 | Mitsubishi Electric Corp | Large current switch gear |
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JP2001332158A (ja) * | 2000-05-22 | 2001-11-30 | Hitachi Ltd | ガス遮断器 |
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JP2009059541A (ja) * | 2007-08-30 | 2009-03-19 | Mitsubishi Electric Corp | ガス遮断器 |
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JPS5973822A (ja) | 1982-10-20 | 1984-04-26 | 株式会社東芝 | ガス絶縁碍子形しや断器 |
CH661144A5 (de) * | 1983-10-28 | 1987-06-30 | Bbc Brown Boveri & Cie | Hochspannungsleistungsschalter. |
FR2650699B1 (ja) * | 1989-08-07 | 1995-10-20 | Alsthom Gec | |
DE19613569A1 (de) * | 1996-04-04 | 1997-10-09 | Asea Brown Boveri | Leistungsschalter |
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2011
- 2011-08-30 JP JP2012507500A patent/JP4989794B1/ja active Active
- 2011-08-30 WO PCT/JP2011/069661 patent/WO2013030963A1/ja active Application Filing
- 2011-08-30 CN CN201180072501.5A patent/CN103703533B/zh active Active
- 2011-08-30 US US14/119,635 patent/US9165732B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5491770A (en) * | 1977-12-29 | 1979-07-20 | Mitsubishi Electric Corp | Large current switch gear |
JPS63134972A (ja) * | 1986-11-27 | 1988-06-07 | Mitsubishi Electric Corp | 開閉装置の電流試験方法 |
JP2001332158A (ja) * | 2000-05-22 | 2001-11-30 | Hitachi Ltd | ガス遮断器 |
JP2008112633A (ja) * | 2006-10-30 | 2008-05-15 | Mitsubishi Electric Corp | ガス遮断器 |
JP2009059541A (ja) * | 2007-08-30 | 2009-03-19 | Mitsubishi Electric Corp | ガス遮断器 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11545322B2 (en) | 2018-10-26 | 2023-01-03 | Kabushiki Kaisha Toshiba | Gas circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
CN103703533B (zh) | 2016-04-20 |
JPWO2013030963A1 (ja) | 2015-03-23 |
CN103703533A (zh) | 2014-04-02 |
US20140069891A1 (en) | 2014-03-13 |
JP4989794B1 (ja) | 2012-08-01 |
US9165732B2 (en) | 2015-10-20 |
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