JPS5871524A - Buffer type gas breaker - Google Patents
Buffer type gas breakerInfo
- Publication number
- JPS5871524A JPS5871524A JP9596281A JP9596281A JPS5871524A JP S5871524 A JPS5871524 A JP S5871524A JP 9596281 A JP9596281 A JP 9596281A JP 9596281 A JP9596281 A JP 9596281A JP S5871524 A JPS5871524 A JP S5871524A
- Authority
- JP
- Japan
- Prior art keywords
- fixed electrode
- gas flow
- fixed
- hot gas
- electrode part
- 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
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
- H01H33/88—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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はしゃ断時に発生する絶縁ガス下流側における熱
ガス流の流出流路を改良したバッファ形ガスしゃ断器に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a buffer type gas breaker which has an improved outlet flow path for a hot gas flow on the downstream side of the insulating gas generated at the time of shutoff.
近年の系統における高電圧大容量化に伴いしゃ断器がし
ゃ断しなければならない短絡電流は急激に増大し、かつ
電流しゃ断器にしゃ断器に印加される電圧もますます増
大する傾向があり、かつ変電所を都市近郷に建設するた
め、送変電機器の小形化及び高信頼性が必要とされる。In recent years, with the increase in high voltage and capacity in power systems, the short-circuit current that circuit breakers must break has rapidly increased, and the voltage applied to current circuit breakers has also tended to increase. In order to construct a power station near a city, it is necessary to make the power transmission and substation equipment more compact and highly reliable.
一般にシリンダとピストンによって８Ｆ、ガスのような
絶縁ガスを圧縮して接触子間に発生したアークに絶縁ガ
スを吹付けるいわゆるバッファ形ガスしゃ断器において
、絶縁ガスはアークの部分を通過する際アークから発生
したエネルギによって熱せられて、いわゆる熱ガスとし
て下流へと吹付けられる。この熱ガスは電極部材の蒸気
や、これらと絶縁ガスとの反応により発生した分解生成
物を含んでいることや、ガス流の流れに伴う密度の不均
一さにより、静止時の絶縁ガスと比較して絶縁耐力の低
下を起す。このため下流側の流路などを改善して、電界
強度の高い部分へ高温のガス流が導かれないようにする
こと、及び熱ガス流の流線の均一化を図って極部的に高
温で密度が低し１部分を生じない構造とすることがしゃ
断器の性能を向上させる一つの方法である。In general, a so-called buffer type gas breaker uses a cylinder and piston to compress an insulating gas such as 8F gas and spray the insulating gas onto the arc generated between the contacts. The energy generated is heated and blown downstream as so-called hot gas. This hot gas contains steam from the electrode components and decomposition products generated by the reaction between these and the insulating gas, and is compared to the insulating gas at rest due to the non-uniformity of density associated with the gas flow. This causes a decrease in dielectric strength. For this reason, it is necessary to improve the flow path on the downstream side so that the high temperature gas flow is not guided to areas with high electric field strength, and to make the streamlines of the hot gas flow uniform so that extremely high temperature One way to improve the performance of a circuit breaker is to create a structure with low density and no single part.
従来のバッファ形ガスしゃ断器は、事故電流しゃ断時に
は、固定電極と可動電極との間で発生すルアークに、バ
ッファ内部の圧縮された絶縁ガスを絶縁ノズルを通して
吹付ける。このよう番こアークに吹付けられた絶縁ガス
は高温度であり、分解生成物を含んだ熱ガス流となって
固定電極部の固定通電接触子の間を通り、接地タンク側
へ排出される。In a conventional buffer type gas breaker, when a fault current is cut off, compressed insulating gas inside the buffer is sprayed through an insulating nozzle onto a luor arc generated between a fixed electrode and a movable electrode. The insulating gas blown onto the arc in this way is at a high temperature and becomes a hot gas flow containing decomposition products that passes between the fixed current-carrying contacts of the fixed electrode section and is discharged to the grounded tank side. .
このような従来の固定電極部（１）は第１図又は第２図
に示すように、固定電極支持部材（１ｍ）の中央に固定
°電極（２）が設けられ、この周囲に複数個の円柱（３
）又は一部丸味をもった角柱（３ｓ）によって図示され
ない固定通電接触子が支持されてＧする。熱ガスが固定
通電接触子を支持する円柱（３）又は角柱（３ｍ）の夫
々の間を固定電極（２）から放射状直線的に図示した矢
印のような熱ガス流（６）のように流線を形成して接地
タンク（力に向って流れる。この際に円柱（３）又は角
柱（３ｍ）近傍の接地タンク（７）ｌ！に交鎖斜線で示
した形部（８）に熱ガス流が渦流となって滞留している
ので、絶縁耐力が局部的に弱まっている。As shown in Fig. 1 or 2, such a conventional fixed electrode section (1) has a fixed electrode (2) provided at the center of a fixed electrode support member (1 m), and a plurality of electrodes arranged around the fixed electrode (2). Cylinder (3
) or a partially rounded prism (3s) supports a fixed current-carrying contact (not shown). The hot gas flows radially and linearly from the fixed electrode (2) between each of the cylinders (3) or prisms (3 m) that support the fixed current-carrying contacts in a hot gas flow (6) as shown by the arrows. It forms a line and flows towards the grounded tank (force). At this time, hot gas flows into the shaped part (8) shown with intersecting diagonal lines in the grounded tank (7) l! near the cylinder (3) or square pillar (3 m). As the flow becomes a vortex and stagnates, the dielectric strength is locally weakened.
とくに電圧の高い条件では円柱（３）又は角柱（３ａ）
の周囲と比較して形部（８）は電界強度が強く、熱ガス
が集中しているので、この部分から接地タンク（７）へ
せん絡（９）が起ることが多い。このような結果からし
ゃ断性能を上げることができず、所要の絶縁強度を得る
ため、接地タンク径を太きくしなければならないという
問題点があった。Especially under high voltage conditions, cylinder (3) or square cylinder (3a)
Since the electric field strength is stronger in the shaped part (8) compared to the surrounding area, and hot gas is concentrated, a flashover (9) often occurs from this part to the grounded tank (7). As a result, the breaking performance cannot be improved, and in order to obtain the required insulation strength, the diameter of the grounded tank must be increased.
本発明は上記の点を考慮してなされたもので、その目的
とするところは、しゃ断時に発ギする熱ガスによる地絡
を紡ぎ、小形で安価なしゃ断性能を向上したバッファ形
ガスしゃ断器を提供することにある。The present invention has been made in consideration of the above points, and its purpose is to provide a buffer-type gas breaker that is small, inexpensive, and has improved breaking performance by preventing ground faults caused by hot gas emitted when the circuit is cut off. It is about providing.
以下本発明を図面に示す一実施例を参照して説明する。The present invention will be described below with reference to an embodiment shown in the drawings.
第３図において、接地されたタンクα１）内部にしゃ断
部ａ３が８Ｆ、ガスのような絶縁ガス（１３ｉとともに
収納されている。このしゃ断部α２は１点切りあるいは
多点切りに応じて１個あるいは複数個設けられる。例え
ば１点切りの場合は図示右側のように絶縁部材からなる
接続部材α９によって図示されないタンク内壁に支持さ
れ、また多点切りの場合はセンターピースのような接続
部材α９を介して図示しない他のしゃ断部に接続されて
いる。In Fig. 3, a breaker part a3 (8F) is housed inside the grounded tank α1) along with an insulating gas (13i) such as a gas. For example, in the case of single-point cutting, they are supported on the inner wall of the tank (not shown) by a connecting member α9 made of an insulating member as shown on the right side of the figure, and in the case of multi-point cutting, a connecting member α9 such as a center piece is supported on the inner wall of the tank (not shown). It is connected to another breaker (not shown) via the breaker.
このしゃ断部Ｏ２は固定電極部Ｑｅとこれと対向した可
動電極部０ηと、この可動電極部αηと接して一体に形
成されたバッファ部ａ樽とからなっている。This cutoff section O2 is composed of a fixed electrode section Qe, a movable electrode section 0η opposing the fixed electrode section Qe, and a buffer section a integrally formed in contact with the movable electrode section αη.
固定電極部Ｑ６）は支持部材σ９と絶縁筒（２Ｄを介し
てタンクａＤ内側に固定され、支持部材（１９は接触子
助を介して日出部のに設けられる絶縁スペーサ（財）に
よって支持される中心導体（ハ）と接続されている。ま
たしゃ断部の他方は図示されない他方の日出部に接続さ
れている。固定電極部αＱは固定電極取付部材（ハ）の
中央に固定電極□□□を設け、この固定電極部を囲うよ
う１乙後述する複数個の翼形状の整流柱■によって固定
通電接触子■が支持されて構成されている。また固定電
極部（ｌＦ３に対向した可動電極部０ηはバッファ部Ｏ
Ｑのシリンダ３υに固着された可動電極Ｃ３２１と、こ
の可動電極Ｃ３３の周囲に噴出孔（３１ａ）と連通する
ガス流路（３３ｍ）を形成する絶縁ノズルｑが取付けら
れ、この絶縁ノズル■の周辺に可動通電接触子（至）が
設けられている。パックァ部鱈はシリンダＧυとピスト
ン■とからバッファ室Ｇηを形成し、このピストン（至
）は接続部材ａ９に固着されている。このシリンダＧｌ
ｌに取付けられた可動電極０２と一体にシリンダ（３１
１に取付けられた中空ロッド弼は図示しない操作機構部
に連続される。The fixed electrode part Q6) is fixed inside the tank aD via the support member σ9 and the insulating cylinder (2D), and the support member (19 is supported by the insulating spacer (goods) provided in the Hide part via the contact support. The other of the cutoff parts is connected to the other sunrise part (not shown).The fixed electrode part αQ has a fixed electrode □□ in the center of the fixed electrode mounting member (c). □, and a fixed current-carrying contact ■ is supported by a plurality of wing-shaped rectifying pillars (described later) so as to surround this fixed electrode part. Part 0η is buffer part O
A movable electrode C321 is fixed to the cylinder 3υ of Q, and an insulated nozzle q that forms a gas flow path (33m) communicating with the ejection hole (31a) is attached around this movable electrode C33. A movable current-carrying contact (to) is provided. In the packer section, a buffer chamber Gη is formed from a cylinder Gυ and a piston (2), and this piston (to) is fixed to a connecting member a9. This cylinder Gl
The cylinder (31
The hollow rod attached to 1 is connected to an operating mechanism section (not shown).
固定電極部αＧは第４図及び第５図に示すように、固定
電極支持部材■の中央に固定電極（イ）を設け、この固
定電極部の周囲にほぼ等間隔に複数個の翼形状の整流柱
■の一端を固定電極支持部材■に固着して配設し、翼形
状の整流柱■の他端に固定通電接触子（ハ）が設けられ
ている。この固定通電接触子−は複数個の通電接触子Ｇ
４１）を支持する通電支持部材（６）と、この接触子−
υの外周を覆い電界を緩和するシールド卿とからなって
いる。As shown in Figs. 4 and 5, the fixed electrode part αG has a fixed electrode (A) provided at the center of the fixed electrode support member (2), and a plurality of wing-shaped blades arranged at approximately equal intervals around this fixed electrode part. One end of the rectifying column (2) is fixedly disposed on the fixed electrode support member (2), and a fixed current-carrying contact (C) is provided at the other end of the wing-shaped rectifying column (2). This fixed current-carrying contact is made up of a plurality of current-carrying contacts G.
41), and this contactor (6).
It consists of a shield that covers the outer circumference of υ and alleviates the electric field.
次に上述したように構成された本発明の作用効果につい
て説明する。第３肉はしゃ断器０ｚのしゃ断連中の状態
を示しているが、開極に伴い固定電極Ｃ２７＋と可動電
極６４間にアーク（ハ）力５発生する。このアーク卿に
バッファ部Ｑ１９の／臂′ンファ室（ロ）で圧縮された
絶縁ガスａ３が噴出孔（３１ｇ） 、ガス流路（３３ｍ
）を経て絶縁ノズル（からガス流に）が吹付けらね、る
。Next, the effects of the present invention configured as described above will be explained. The third figure shows the state of the circuit breaker 0z when the circuit is disconnected, and an arc (C) force 5 is generated between the fixed electrode C27+ and the movable electrode 64 as the circuit is opened. Insulating gas a3 compressed in the armpit buffer chamber (b) of the buffer part Q19 is supplied to this arc chamber through the ejection hole (31g) and the gas flow path (33m).
) and an insulated nozzle (from which the gas stream is blown).
アーク卿に吹付けられた主な熱ガス流（４７１４１下流
側の固定電極部αＱに放出される。この熱ガス流＠７１
Ｃま第４図にも示すように翼形状の整流柱艶間を通り熱
ガス流０８のようにタンク１１υ側の空間をこ放出さね
、翼形状の整流柱（ハ）間を通った熱ガス流（４８ｇｉ
第５図に示すように、翼形状の整流柱」こよって整流さ
れ、回転して螺旋状の熱ガス流（４ｇｌとなってタンク
ＯＬｌ側のガス空間（へ）に放出さね、る。The main hot gas flow blown to the arc (47141 is released to the downstream fixed electrode part αQ. This hot gas flow @71
As shown in Figure 4, the hot gas flow 08 passes between the airfoil-shaped rectifier columns and is released into the space on the tank 11υ side. Gas flow (48gi
As shown in FIG. 5, the flow is rectified by the airfoil-shaped rectifying column, which rotates to become a spiral hot gas flow (4 gl) and is released into the gas space on the side of the tank OL1.
このような回転した熱ガス流（４１こよって、ガス密度
が均一化され、螺旋状に回転しな力５らタンクａｌｌ側
に向うため、極部的に熱ガスカＳ滞留する部分が生じな
い。また熱ガスの流路が固定通電接触子（ハ）の周囲に
そった方向に回転しな力５らタンクＱｌｌ！こ向うため
、従来より熱ガスがタンクａυに弼１達するまでの距離
が大きくなるので、タンクＱｌｌｊこ向うせん絡を防止
して絶縁耐力が向上する。このようにしてタンクａυの
直径を縮小でき、またしゃ断性能を大頓に向上すること
ができる。As a result of this rotating hot gas flow (41), the gas density is made uniform, and since the hot gas flow (41) is not spirally rotated and directed toward the tank all side, there is no localized portion where the hot gas S remains. Also, because the flow path of the hot gas does not rotate in the direction along the circumference of the fixed current-carrying contact (c) and is opposed to the tank, the distance for the hot gas to reach the tank aυ is longer than before. Therefore, the dielectric strength is improved by preventing the flashover across the tank Qllj.In this way, the diameter of the tank aυ can be reduced and the breaking performance can be greatly improved.
以上説明したように本発明によれば、固定電極部が固定
電極を囲むように設けられた複数個の翼形状の整流柱に
よって固定通電接触子を支持するように構成されること
によって、しゃ断時に固定電極と可動電極間に発生する
アークに吹付けられた絶縁ガス流が、熱ガス流となって
下流側に流れる。この主な熱ガス流は固定電極部に流れ
込み、複数個の翼形状の整流柱間を通ってタンク内部空
間に放出される。このように熱ガス流が翼形状の整流柱
間を通過する際に、翼形状の整流柱の形状に沿って整流
され、固定電極部周囲を螺旋状に回転して放出されるの
で、従来のような熱ガスの渦流部分を発生することなく
、熱ガス流のガス密度の不均一を紡ぐこと、さらにガス
流が螺旋状に回転するためタン５ン内壁に向うせん絡を
防止することができるので、絶縁耐力を向上し、小形化
を図ることができる信頼性のあるバッファ形ガスしや断
器を提供することができる。As explained above, according to the present invention, the fixed electrode part is configured to support the fixed current-carrying contact by a plurality of wing-shaped rectifying pillars provided so as to surround the fixed electrode, so that when the fixed electrode part is cut off, The insulating gas flow blown onto the arc generated between the fixed electrode and the movable electrode becomes a hot gas flow and flows downstream. This main hot gas flow flows into the fixed electrode section, passes between a plurality of airfoil-shaped straightening columns, and is discharged into the tank interior space. In this way, when the hot gas flow passes between the airfoil-shaped rectifying columns, it is rectified along the shape of the airfoil-shaped rectifying columns, rotates spirally around the fixed electrode part, and is released. It is possible to spin the non-uniform gas density of the hot gas flow without generating a vortex part of the hot gas, and furthermore, because the gas flow rotates in a spiral, it is possible to prevent the flow from collapsing toward the inner wall of the tongue. Therefore, it is possible to provide a reliable buffer type gas insulator and disconnector that has improved dielectric strength and can be made smaller.
第１図及び第２図は夫々従来の、（ソファ形ガスしゃ断
器の固定電極部を示す横断面図、第３図ないし第５図は
゛夫々本発明の７す゛ソファ形ガスしゃ断器を示し、第
３図は要部を示す縦断面図、第４図は固定電極部を示す
縦断面図、第５図は第４図のｙ−ｖ線矢視断面図である
。
１１−、タンク、１２・・しゃ断部、１３・・・絶縁ガ
ス、１６・・−固定電極部、１７・・・可動電極部、１
８・・・バッファ部、１９・・−支持部材、２１・−・
絶縁筒、２２・・・接触子、２６・・・固定電極支持部
材、２７・・・固定電極、２８・・翼形状の整流柱、２
９・・・固定通電接触子、３１・・シリンダ、３２・・
可動電極、３３・・・絶縁ノズル、３５・・・可動通電
接触子、３６−・ピストン、３７・・・バッファ室、４
１・・通電接触子、４２・・・通電支持部材、４３・・
・シールド、４５・・アーク、４６・・ガス流、４７，
４８．４９・−・熱ガス流、５０・・ガス空間
汁侵入 、４０穆↓ 什 Ｌ １１１
第 １ 図1 and 2 are respectively cross-sectional views showing the fixed electrode portion of a conventional sofa-shaped gas breaker, and FIGS. 3 to 5 respectively show a 7-stage sofa-shaped gas breaker of the present invention. 3 is a longitudinal sectional view showing the main parts, FIG. 4 is a longitudinal sectional view showing the fixed electrode part, and FIG. 5 is a sectional view taken along the line Y-V in FIG. 4. 11-, tank, 12 ... Breaking part, 13... Insulating gas, 16... Fixed electrode part, 17... Movable electrode part, 1
8...Buffer part, 19...-support member, 21...
Insulating tube, 22... Contactor, 26... Fixed electrode support member, 27... Fixed electrode, 28... Wing-shaped rectifying column, 2
9... Fixed current-carrying contact, 31... Cylinder, 32...
Movable electrode, 33... Insulating nozzle, 35... Movable energizing contact, 36-- Piston, 37... Buffer chamber, 4
1... Current-carrying contact, 42... Current-carrying support member, 43...
・Shield, 45...Arc, 46...Gas flow, 47,
48.49...Hot gas flow, 50...Gas space juice intrusion, 40 穆↓ 什 L 111
Figure 1
Claims (2)
とこれに対向した可動電極部とこの可動電極部と接して
一体に設けられたパックァ部とからなるしゃ断部を収納
したものにおいて、前記固定電極部は、固定電極と、こ
の固定電極を囲む複数個の整流柱によって支持された固
定通電接触子とで構成され、しゃ断動作の際に発生する
熱ガス流を前記整流柱によって整流し、どの整流された
熱ガス流を前記整流柱間から前記固定電極部の周囲を螺
旋状に回転しながらタンク側に放出するようにしたこと
を特徴とするバッファ形ガスしゃ断器。(1) In a tank containing an insulating gas and an interrupting section consisting of a fixed electrode part, a movable electrode part facing the fixed electrode part, and a packer part integrally provided in contact with the movable electrode part, the fixed electrode The section is composed of a fixed electrode and a fixed current-carrying contact supported by a plurality of rectifying columns surrounding the fixed electrode, and rectifies the hot gas flow generated during the cutoff operation by the rectifying columns. 1. A buffer type gas breaker, characterized in that the heated gas flow is discharged from between the rectifying columns to a tank side while rotating spirally around the fixed electrode part.
項記載のバッファ形ガスしゃ断器。(2) Claim 1 in which the rectifying column is formed in the shape of a wing.
Buffer type gas breaker as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9596281A JPS5871524A (en) | 1981-06-23 | 1981-06-23 | Buffer type gas breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9596281A JPS5871524A (en) | 1981-06-23 | 1981-06-23 | Buffer type gas breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5871524A true JPS5871524A (en) | 1983-04-28 |
Family
ID=14151838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9596281A Pending JPS5871524A (en) | 1981-06-23 | 1981-06-23 | Buffer type gas breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5871524A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749831A (en) * | 1984-12-20 | 1988-06-07 | Mitsubishi Denki Kabushiki Kaisha | Dead tank type gas circuit breaker |
| WO2003046939A1 (en) * | 2001-11-14 | 2003-06-05 | Siemens Aktiengesellschaft | Power switch |
| WO2006066420A1 (en) * | 2004-12-24 | 2006-06-29 | Abb Technology Ag | Generator switch having an improved switching capacity |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5362180A (en) * | 1976-11-17 | 1978-06-03 | Tokyo Shibaura Electric Co | Single pressure type gas breaker |
| JPS5498973A (en) * | 1978-01-20 | 1979-08-04 | Tokyo Shibaura Electric Co | Discnnecing switch |
-
1981
- 1981-06-23 JP JP9596281A patent/JPS5871524A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5362180A (en) * | 1976-11-17 | 1978-06-03 | Tokyo Shibaura Electric Co | Single pressure type gas breaker |
| JPS5498973A (en) * | 1978-01-20 | 1979-08-04 | Tokyo Shibaura Electric Co | Discnnecing switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749831A (en) * | 1984-12-20 | 1988-06-07 | Mitsubishi Denki Kabushiki Kaisha | Dead tank type gas circuit breaker |
| WO2003046939A1 (en) * | 2001-11-14 | 2003-06-05 | Siemens Aktiengesellschaft | Power switch |
| WO2006066420A1 (en) * | 2004-12-24 | 2006-06-29 | Abb Technology Ag | Generator switch having an improved switching capacity |
| US7893379B2 (en) | 2004-12-24 | 2011-02-22 | Abb Technology Ag | Generator circuit breaker with improved switching capacity |
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