JPS60154424A - Air pressure self-generating compressed gas breaker - Google Patents
Air pressure self-generating compressed gas breakerInfo
- Publication number
- JPS60154424A JPS60154424A JP26468784A JP26468784A JPS60154424A JP S60154424 A JPS60154424 A JP S60154424A JP 26468784 A JP26468784 A JP 26468784A JP 26468784 A JP26468784 A JP 26468784A JP S60154424 A JPS60154424 A JP S60154424A
- Authority
- JP
- Japan
- Prior art keywords
- compressed gas
- air pressure
- pressure self
- cylinder
- gas breaker
- 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
- 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
- H01H33/91—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 the arc-extinguishing fluid being air or gas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
- H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
Landscapes
- Circuit Breakers (AREA)
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】
産業上の利用分野
本発明は、消弧に必要な消弧ガス流がしゃ断の際シリン
ダとピストンからなる圧縮装置により発生される、気圧
自己発生形圧縮ガスしゃ断器に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a self-generating compressed gas breaker, in which an arc extinguishing gas flow necessary for arc extinguishing is generated by a compression device consisting of a cylinder and a piston. .
従来技術
これらのしゃ断器では、ピストンが固定している場合、
投入中シリンダの運動によりガスがしゃ断器柱から圧縮
空間としてのポンプ空間へ吸入される。このため流入断
面として、ノズル内の比較的小さい間隙断面しか利用さ
れず、投入運動の最後の部分において固定対向接触片が
ノズルへ入り込んだ後、間隙断面が甚だしく小さくなる
。その結果、投入運動後ポンプ空間としゃ断器柱の残り
のガス空間との間の圧力平衡がおこるまでに長い時間が
かかり、種々の欠点を伴う。Prior Art In these circuit breakers, when the piston is fixed,
During charging, the movement of the cylinder draws gas from the breaker column into the pump space, which serves as the compression space. For this reason, only a relatively small gap cross-section in the nozzle is utilized as an inlet cross-section, and after the fixed opposing contact piece has entered the nozzle in the last part of the dosing movement, the gap cross-section becomes considerably smaller. As a result, it takes a long time for the pressure equilibrium between the pump space and the remaining gas space of the breaker column to occur after the dosing movement, which is accompanied by various disadvantages.
その対策として、逆止め弁をピストンに組込み、この弁
をしゃ断運動中閉じ、投入運動中には開いて、付加的な
流入断面を開くことが既に提案された（ドイツ連邦共和
国特許出願公開第２６０３０４１号）。このような逆止
め弁は、構造を複雑にすると共に高価にする。可動弁部
分をこれまでの簡単で強固なポンプ装置に付加すること
も、例えば短絡による大きいしゃ断頻度およびしゃ断器
の内部汚れの場合のように、特に線路におけるしゃ断器
の困難な使用条件において、信頼性の問題を新たに課す
ことになる。As a countermeasure, it has already been proposed to integrate a non-return valve in the piston, which is closed during the shutoff movement and opened during the closing movement, opening an additional inflow cross section (German Patent Application No. 2,603,041). issue). Such check valves are complex and expensive in construction. The addition of a movable valve part to the previously simple and robust pump system also increases reliability, especially in difficult conditions of use of circuit breakers on railway lines, for example in the case of high shutoff frequencies due to short circuits and internal contamination of the circuit breaker. This will introduce a new issue of gender.
最後に投入運動中も、ポンプ空間内に一時的に生ずる負
圧の望ましい漸進的な制動作用がなくなる。しかし投入
運動の終りに効果を増大するこの気圧制動を利用すると
、投入の際動かされる質量の機械的エネルギーの大部分
を消失させることかできるので、特殊なストッパ制動器
１の費用は少ない。Finally, also during the dosing movement, the desired progressive damping effect of the temporary underpressure in the pump space is eliminated. However, the use of this pneumatic damping, which increases its effectiveness at the end of the closing movement, makes it possible to dissipate a large part of the mechanical energy of the mass moved during loading, so that the cost of the special stop brake 1 is low.
発明の目的
したがって本発明の課題は、投入の際ポンプ空間の制動
作用を充分碓持するが、投入運動の終了後は圧、力平衡
を迅速に行なうように、最初にあげた種類の圧縮ガスし
ゃ断器を構成することである。OBJECTS OF THE INVENTION The object of the invention is therefore to provide a compressed gas of the type mentioned above in such a way as to sufficiently maintain the braking action of the pump space during dosing, but to ensure rapid pressure and force equilibrium after the dosing movement has ended. It is to configure a circuit breaker.
目的を達するための手段
この諜顧を解決するため本発明によれば、可動しゃ断器
部分の投入位置の直前に、シリンダに設けられる少なく
とも１つの開口が開かれ、この開口を通ってガスが圧縮
空間へ流入し、開口の断面がこの時点に有効なノズル断
面と同じか、またはこれより大きい。本発明によるしゃ
断器の重要な利点は、シリンダ壁にある開口が投入運動
の大部分の間およびしゃ断運動の間作用せず、オ）ずか
な費用で製造可能なことである。Means for achieving the object In order to solve this problem, according to the invention, immediately before the closing position of the movable breaker part, at least one opening provided in the cylinder is opened, through which the gas is compressed. into the space, the cross-section of the opening being equal to or larger than the nozzle cross-section valid at this point. An important advantage of the circuit breaker according to the invention is that the opening in the cylinder wall is not active during the majority of the closing movement and during the closing movement and e) it can be manufactured at low cost.
本発明のそれ以外の構成は、特許請求の範囲の実施態様
項に示されている。Other configurations of the invention are indicated in the embodiments section of the claims.
実施例 図面には本発明による実施例が示されている。Example An exemplary embodiment of the invention is shown in the drawing.
第１図には、気圧自己発生形圧縮ガスしゃ断器のしゃ断
器柱が投入状態で示されている。かいし】内の閉じたし
ゃ断室内には接触装置が設けられている。しゃ断器は上
部端子板２と下部端子板３とをもっている。しゃ断区間
のしゃ断アークを引受ける部分は、可動電力接触片５に
関連して、上部端子板２に導電接続された固定対向接触
片４により形成される。電力接触片５は可動シリンダ６
に導電接続され、下部端子板３に取付けられた固定ピス
トン７゛が、必要な吹消し圧力を発生するため、圧縮装
置すなわちしゃ断区間ポンプとしてシリンダ６と共同作
用する。シリンダ６は電流および力を導入する二又片８
に導電接続され、この二又片８は駆動棒９に結合されて
いる。この駆動棒９は通常のように液汁、空気圧または
はね駆動装置等によって操作される。駆動棒９は支柱ｌ
Ｏの内部に案内され、この支柱ＩＯの下端に駆動装置が
取付けられている。二又片８は摺動接触子１１を介して
下部端子板３に導電接続されている。FIG. 1 shows a breaker column of a self-generating compressed gas breaker in a closed state. A contact device is provided within the closed isolation chamber within the enclosure. The circuit breaker has an upper terminal plate 2 and a lower terminal plate 3. The part of the disconnection section which takes over the disconnection arc is formed by a fixed counter contact piece 4 which is electrically conductively connected to the upper terminal plate 2 in conjunction with a movable power contact piece 5 . The power contact piece 5 is a movable cylinder 6
A fixed piston 7', which is electrically conductively connected to the lower terminal plate 3 and mounted on the lower terminal plate 3, cooperates with the cylinder 6 as a compression device or cut-off section pump in order to generate the necessary blowout pressure. Cylinder 6 is bifurcated 8 into which current and force are introduced.
The fork 8 is electrically conductively connected to the drive rod 9 . This drive rod 9 is operated in the usual manner by a hydraulic, pneumatic or splash drive or the like. The drive rod 9 is the support l
A driving device is attached to the lower end of this column IO. The bifurcated piece 8 is electrically conductively connected to the lower terminal plate 3 via a sliding contact 11.
可動電力接触片５の範囲において可動シリンダ６に絶縁
ノズル１２が固定的に結合され、しや断の際ポンプ６．
７内で圧縮されるガスがこのノズル１２から出て、接触
片４．５間に生ずるしゃ断アークを吹消す。絶縁ノズル
１２は円筒状じゃへい片１３をもち、このしやへい片１
３が上部端子板２に接続された固定シリンダ１４内を動
くことができる。An insulating nozzle 12 is fixedly connected to the movable cylinder 6 in the area of the movable power contact piece 5, which prevents the pump 6.
The gas compressed in 7 exits from this nozzle 12 and blows out the breaking arc that occurs between the contact pieces 4.5. The insulating nozzle 12 has a cylindrical baffle piece 13, and this baffle piece 1
3 can move in a fixed cylinder 14 connected to the upper terminal plate 2.
しやへい片１３とがいし１との間には、電流容量を高め
るため２つの接触片１５と１６からなる並列接触路が設
けられている。接触片１５は上部端子板２に導電接続さ
れて、固定している。A parallel contact path consisting of two contact pieces 15 and 16 is provided between the insulation piece 13 and the insulator 1 in order to increase the current capacity. The contact piece 15 is electrically conductively connected to and fixed to the upper terminal plate 2.
接触片１６は可動シリンダ６に導電接続されて、これと
共に動かされる。The contact piece 16 is electrically conductively connected to the movable cylinder 6 and moved therewith.
これまで述べたしゃ断器では、投入状態において電流が
上部端子板２と下部端子板３との間で２つの電流路すな
わち並列接触路１４．１５．１６と電力接触路４，５と
を経て並列に流れる。しゃ断の際駆動棒９が下方へ動か
される。その際まず並列接触路１５．１６がしゃ断され
、それからアークを形成しながら電力接触路４，５がし
ゃ断される。In the breaker described so far, in the closed state, the current flows between the upper terminal board 2 and the lower terminal board 3 through two current paths, that is, the parallel contact path 14, 15, 16 and the power contact path 4, 5. flows to When shutting off, the drive rod 9 is moved downward. In this case, first the parallel contacts 15, 16 are interrupted, and then the power contacts 4, 5 are interrupted with the formation of an arc.
しや斯区間ポンプ６．７によりしゃ新運動中連続的に小
さくなるポンプ空間２１に高い吹消し圧力が生じ、圧縮
された絶縁ガス例えばＳＦ６は絶縁ノズル１２から上方
へ出でアークを吹消し、上部端子板２にある開口１７．
１８を経てしゃ画室のフード１９内へ逃げるか、または
冷却後じゃ断器柱の残りの空間２０へ逃げることもでき
る。A high blowout pressure is generated in the pump space 21, which becomes smaller continuously during the shunting movement, by the section pump 6.7, and a compressed insulating gas, for example SF6, is discharged upward from the insulating nozzle 12 to blow out the arc. Opening 17 in the upper terminal plate 2.
It can also escape via 18 into the hood 19 of the breaker chamber or, after cooling, into the remaining space 20 of the breaker column.
この種の従来のしゃ断器において最初にあげた欠点を回
避するため、シリンダ６に１列の開口２２が設けられて
、・投入運動の大部分の間は作用せず、最終位置に達す
る直ｍにはじめて作用する。簡単な構造的解決策は、開
口２２としての穴の環を最終投入位置でピストン７のす
ぐ上に設けることである。ノズル１２による流入断面の
数倍であるこの流入断面によって、投入運動の終りにポ
ンプ空間２１としゃ断器柱の残、、。□よ、。。ヵ□□
□、ユイ、４うユ ）とができる。これに反し投入運動
中穴２２がとストン７を通過するまで、これらの穴はポ
ンプ空間２１以外の同じ圧力の空間を接続している。In order to avoid the first-mentioned disadvantages in conventional circuit breakers of this type, the cylinder 6 is provided with a row of openings 22 which are not active during the majority of the closing movement and which are not activated immediately upon reaching the final position. It acts for the first time. A simple structural solution is to provide a ring of holes as openings 22 directly above the piston 7 in the final dosing position. With this inlet cross-section, which is several times the inlet cross-section by the nozzle 12, at the end of the dosing movement the pump space 21 and the remains of the breaker column, . □Yo. . ka□□
□, Yui, 4uu) can be done. On the contrary, during the dosing movement until the holes 22 pass through the plunger 7, these holes connect spaces with the same pressure other than the pump space 21.
しゃ断器のしゃ断の際穴２２は実際上無意味である。な
ぜならばポンプ空間２１における圧縮過程により、運動
の進行につれて羨第にガス空間の間の圧力差が生じ、し
たがって穴２２を通って流出してアーク冷却のために失
われるガス量は無視できるほど少ないからである。The hole 22 is practically meaningless when the circuit breaker is disconnected. This is because the compression process in the pump space 21 creates a pressure difference between the gas spaces as the motion progresses, so that the amount of gas flowing out through the holes 22 and lost due to arc cooling is negligible. It is from.
第２図によれば開口２２は円形または他の形状例えば方
形とすることができる。方形は最小の運動行程で最大の
流入断面を可能にするが、ピストン７の周囲に密封環２
３を使用する場合は円形穴の方がよい。開口２２は１列
または複数列でシリンダ６の周囲に分布させることがで
きる。この場合開口の内側稜を丸めるのがよい。According to FIG. 2, the opening 22 can be circular or have another shape, for example square. The rectangular shape allows a maximum inlet cross section with a minimum travel stroke, but a sealing ring 2 is provided around the piston 7.
3, a circular hole is better. The openings 22 can be distributed around the cylinder 6 in one or more rows. In this case, it is best to round the inner edge of the opening.
シリンダ６の直径が特定の部分で大きくされ、それによ
り第３図に示すように、流入断面としての環状間隙２４
がピストン７のまわりに生ずると、異なる構造的手段で
同じ気圧効果が得られる。この手段は前述したものの１
つと組合わせることもできる。The diameter of the cylinder 6 is enlarged in certain parts, so that an annular gap 24 as an inlet cross section, as shown in FIG.
occurs around the piston 7, the same pneumatic effect is obtained with different structural means. This method is one of the methods mentioned above.
It can also be combined with one.
第１図はシリンダ壁に付加的な開口をもつ気圧自己発生
形圧縮ガスしゃ断器の垂直断面図、第２図は２列の付加
的な開口をもつシリンダ壁およびピストンの一部の垂直
断面図、第３図はシリンダの内径を段付けした実施例の
第２図に対応する図である。
４．５・・・電力接触片、６・・・シリンダ、７・・・
ピストン、２１・・・圧縮空間（ポンプ空間）、２２・
・・開口Figure 1 is a vertical sectional view of a self-generating compressed gas breaker with additional openings in the cylinder wall, and Figure 2 is a vertical sectional view of part of the cylinder wall and piston with two rows of additional openings. , FIG. 3 is a diagram corresponding to FIG. 2 of an embodiment in which the inner diameter of the cylinder is stepped. 4.5... Power contact piece, 6... Cylinder, 7...
Piston, 21... Compression space (pump space), 22.
・・Aperture
Claims (1)
ストンからなる圧縮装置により発生されるものにおいて
、可動しゃ断器部分の投入位置の直前に、シリンダ（６
）に設けられる少なくとも１つの開口（２２）が開かれ
、この開口を通ってガスが圧縮空間（２１）へ流入し、
開口（２２）の断面がこの時点に有効なノズル断面と同
じか、またはこれより大きいことを特徴とする、気圧自
己発生形圧縮ガスしゃ断器。 ２ 開口がシリンダ（６）の周囲に列をなして設けられ
た穴（２２）であることを特徴とする特許請求の範囲第
１項に記載の気圧自己発生形圧縮ガスしゃ断器。 ３ 穴（２２）が密接した複数の列をなして設けられて
いることを特徴とする特許請求の範囲第２項に記載の気
圧自己発生形圧縮ガスしや断器。 ４ 開口（２２）がシリンダ（６）の周囲に列をなして
設けられた方形断面の切欠きからなることを特徴とする
特許請求の範囲第１項に記載の気圧自己発生形圧縮ガス
しゃ断器。 ５ 方形の切欠きが密接した複数の列をなして設けられ
ていることを特徴とする特許請求の範囲第４項に記載の
気圧自己発星形圧縮ガスしゃ断器。 ６ 開口（２２）がずれて設けられていることを特徴と
する特許請求の範囲第３項または第５項に記載の気圧自
己発生形圧縮ガスしゃ断器。 ７ 開口（２２）が内側の駿によく丸められた移行部を
もち、これらの稜がピストンの溝にある密Ｍ環（２３）
と共同作用することを特徴とする特許請求の範囲第１項
ないし第６項のいずれか１つに記載の気圧自己発生形圧
縮ガスしゃ断器。 ８ 開口の全部または一部が、シリンダ（６）の内径の
増大により特定の部分に形成される環状１！ＩＥ（２４
）からなることを特徴とする特許請求の範囲第１項に記
載の気圧自己発生形圧縮ガスしゃ断器。[Claims] l In a device in which the arc extinguishing gas flow necessary for arc extinguishing is generated by a compression device consisting of a cylinder and a piston, the cylinder (6
) is opened, through which gas flows into the compression space (21);
A self-generating compressed gas breaker, characterized in that the cross-section of the opening (22) is equal to or larger than the currently valid nozzle cross-section. 2. The air pressure self-generating compressed gas breaker according to claim 1, wherein the openings are holes (22) provided in a row around the cylinder (6). 3. The air pressure self-generating compressed gas shear disconnector according to claim 2, characterized in that the holes (22) are provided in a plurality of closely spaced rows. 4. The air pressure self-generating compressed gas breaker according to claim 1, wherein the openings (22) are formed of notches with a rectangular cross section provided in a row around the cylinder (6). . 5. The air pressure self-staring type compressed gas breaker according to claim 4, characterized in that the rectangular notches are provided in a plurality of closely spaced rows. 6. The air pressure self-generating type compressed gas breaker according to claim 3 or 5, characterized in that the openings (22) are provided in a staggered manner. 7 Close M ring (23) whose opening (22) has a well-rounded transition to the inner ring and whose ridges are in the groove of the piston.
An air pressure self-generating type compressed gas breaker according to any one of claims 1 to 6, characterized in that the air pressure self-generating type compressed gas breaker acts in conjunction with. 8 Annular 1 in which all or part of the opening is formed in a specific part by increasing the inner diameter of the cylinder (6)! IE (24
) The air pressure self-generating type compressed gas breaker according to claim 1, characterized in that the air pressure self-generating type compressed gas breaker comprises:
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3346353.0 | 1983-12-22 | ||
| DE19833346353 DE3346353A1 (en) | 1983-12-22 | 1983-12-22 | AUTOPNEUMATIC PRESSURE GAS SWITCH |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60154424A true JPS60154424A (en) | 1985-08-14 |
Family
ID=6217658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26468784A Pending JPS60154424A (en) | 1983-12-22 | 1984-12-17 | Air pressure self-generating compressed gas breaker |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0154004A1 (en) |
| JP (1) | JPS60154424A (en) |
| DE (1) | DE3346353A1 (en) |
| IN (1) | IN160229B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9210086U1 (en) * | 1992-07-22 | 1993-11-25 | Siemens AG, 80333 München | High voltage circuit breakers |
| FR2694987B1 (en) * | 1992-08-21 | 1994-10-07 | Alsthom Gec | High-voltage circuit breaker with a cut-out chamber with variable blowing volume. |
| EP2312603A1 (en) * | 2009-10-15 | 2011-04-20 | ABB Technology AG | Rotary switch-disconnector |
| DE102017212021A1 (en) | 2017-07-13 | 2019-01-17 | Siemens Aktiengesellschaft | Arrangement and method for damping switching movements in high-voltage circuit breakers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471373A (en) * | 1977-11-17 | 1979-06-07 | Mitsubishi Electric Corp | Gas breaker |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3946183A (en) * | 1974-04-05 | 1976-03-23 | Westinghouse Electric Corporation | Puffer piston gas blast circuit interrupter with insulating nozzle member |
| FR2272477B1 (en) * | 1974-05-22 | 1978-06-16 | Gratzmuller J | |
| FR2352386A1 (en) * | 1975-12-29 | 1977-12-16 | Merlin Gerin | Gas pressure actuated switch - has fixed axial contact and mobile contact presenting communicating passage between pressurisable compartments with piston end walls |
| CH622377A5 (en) * | 1977-12-12 | 1981-03-31 | Sprecher & Schuh Ag | |
| DE7906561U1 (en) * | 1979-03-09 | 1983-05-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Auto-pneumatic pressure gas switch |
| DE3127962A1 (en) * | 1981-07-10 | 1983-01-27 | Siemens AG, 1000 Berlin und 8000 München | Electrical gas-blast circuitbreaker |
| DE3129902A1 (en) * | 1981-07-24 | 1983-02-10 | Siemens AG, 1000 Berlin und 8000 München | High-voltage power circuit breaker |
| US4440997A (en) * | 1982-05-28 | 1984-04-03 | Brown Boveri Electric Inc. | Puffer interrupter with arc energy assist |
| US4486635A (en) * | 1983-07-05 | 1984-12-04 | Westinghouse Electric Corp. | High-voltage circuit breaker with improved puffer means |
-
1983
- 1983-12-22 DE DE19833346353 patent/DE3346353A1/en active Granted
-
1984
- 1984-11-23 IN IN804/CAL/84A patent/IN160229B/en unknown
- 1984-12-01 EP EP84114610A patent/EP0154004A1/en not_active Withdrawn
- 1984-12-17 JP JP26468784A patent/JPS60154424A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471373A (en) * | 1977-11-17 | 1979-06-07 | Mitsubishi Electric Corp | Gas breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| IN160229B (en) | 1987-07-04 |
| DE3346353A1 (en) | 1985-07-04 |
| EP0154004A1 (en) | 1985-09-11 |
| DE3346353C2 (en) | 1992-08-06 |
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