JPH0568811B2 - - Google Patents

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Publication number
JPH0568811B2
JPH0568811B2 JP5937785A JP5937785A JPH0568811B2 JP H0568811 B2 JPH0568811 B2 JP H0568811B2 JP 5937785 A JP5937785 A JP 5937785A JP 5937785 A JP5937785 A JP 5937785A JP H0568811 B2 JPH0568811 B2 JP H0568811B2
Authority
JP
Japan
Prior art keywords
gas
puffer
fixed
operating rod
cylinder
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.)
Expired - Lifetime
Application number
JP5937785A
Other languages
Japanese (ja)
Other versions
JPS61220230A (en
Inventor
Masayuki Ishikawa
Masaru Okamoto
Hisatoshi Ikeda
Satoru Yagiu
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP5937785A priority Critical patent/JPS61220230A/en
Publication of JPS61220230A publication Critical patent/JPS61220230A/en
Publication of JPH0568811B2 publication Critical patent/JPH0568811B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】 [発明の技術分野] 本発明は消弧室形状に改良したパツフア形ガス
しや断器に係り、特に消弧後に残存する高温ガス
を効率良く排除するためのガス流路に改良を施し
たパツフア形ガスしや断器に関するものである。
[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a puffer-type gas cylinder and disconnector with an improved arc extinguishing chamber shape, and in particular to a gas flow for efficiently removing high-temperature gas remaining after arc extinguishing. This paper relates to a gas shield and disconnector with an improved path.

[発明の技術的背景] 近年送電容量の増大による短絡容量の増加に伴
つて、しや断器のしや断容量も増加の一途を辿つ
ている。反面機器の小型化のため、一点当たりの
しや断容量を増加させ、しや断器の直列しや断点
数の減少が図られている。このため、しや断器の
しや断性能としてはしや断器の極間の電界設計と
共に、ガス吹き付け機器の最適化が要求されてい
る。
[Technical Background of the Invention] In recent years, as the short-circuit capacity has increased due to an increase in power transmission capacity, the short-circuit capacity of a gap switch has also been increasing. On the other hand, in order to downsize equipment, efforts are being made to increase the shear breaking capacity per point and reduce the number of shear breaks connected in series. For this reason, it is required to optimize the gas blowing equipment as well as the design of the electric field between the poles of the cutter and cutter to improve the cutoff performance of the cutter.

この点を第4図に示す従来のパツフア形ガスし
や断器について説明する。図は開極途中が示され
ている。
This point will be explained regarding the conventional puffer type gas shield and disconnector shown in FIG. The figure shows the state in the middle of opening.

円柱状の固定電極1と環状に配置された可動電
極2は、開口部3を有する中空の操作ロツド3に
よつて、第4図右方にある図示しない操作機構部
と連結されてれいる。この操作ロツド3には可動
パツフアシリンダ4が装着固定されており、この
可動パツフアシリンダ4は、開口部5aを有する
固定パツフアピストン5との間に圧縮室6を構成
する。また、前記パツフアシリンダ4には開口部
4aが設けられており、このパツフアシリンダ4
に固着された絶縁ノズル7a及び絶縁カバー7b
が形成する円筒状ガス流路8を通じて、前記圧縮
室6内のガスが流入出可能となつている。これら
の部品類は絶縁物性の容器9内に収められ、この
絶縁容器9の内部空間10には消弧性ガスが満た
されている。
A cylindrical fixed electrode 1 and an annularly arranged movable electrode 2 are connected to an operating mechanism (not shown) on the right side of FIG. 4 by a hollow operating rod 3 having an opening 3. A movable puffer cylinder 4 is fixedly attached to the operating rod 3, and a compression chamber 6 is formed between the movable puffer cylinder 4 and a fixed puffer piston 5 having an opening 5a. Further, the puffer cylinder 4 is provided with an opening 4a, and the puffer cylinder 4 is provided with an opening 4a.
Insulating nozzle 7a and insulating cover 7b fixed to
The gas in the compression chamber 6 can flow in and out through the cylindrical gas passage 8 formed by the compression chamber 6 . These parts are housed in an insulating container 9, and an internal space 10 of the insulating container 9 is filled with arc-extinguishing gas.

なお、この本実施例では容器を絶縁物性とした
が、前述の消弧室部材が金属タンク内部に絶縁物
で支持されて構成されるパツフア形ガスしや断器
も知られている。
In this embodiment, the container is made of an insulating material, but puffer type gas cylinders and disconnectors are also known in which the above-mentioned arc extinguishing chamber member is supported inside a metal tank by an insulating material.

このしや断器にしや断指令が与えられ、図示し
ていない操作機構部が作動して前記操作ロツド3
が右方へ駆動し、この操作ロツド3に連結された
可動電極2が固定電極1から開離した図示状態と
なると、電極1,2間にアーク11が発生する。
一方、前記操作ロツド3が運動する結果、操作ロ
ツド3に装着された可動パツフアシリンダ4も右
方へ運動し、圧縮室6内の消弧性ガスを圧縮す
る。このガスはパツフアシリンダ4の開口部4
a、ガス流路8及びガス噴出口8aを経て、アー
ク11へ吹き付けられ、このアーク11を消弧す
る。このガス流は二つの流れ12a及び12bに
分流し、第2図左方へ分かれたガス流12aは、
絶縁ノズル7aの開口部7cを経て周囲空間10
へ流出する。一方、右方へ分かれたガス流12b
は、絶縁カバー7bの開口部7d、及び前記可動
電極2から固定電極1が離脱した後の開口部1
3、前記操作ロツド3の開口部3a、固定パツフ
アピストン5の開口部5aを経て周囲空間10へ
流出する。
A shear breaker command is given to the shear breaker, and an operation mechanism (not shown) operates to close the operation rod 3.
When the movable electrode 2 connected to the operating rod 3 is separated from the fixed electrode 1 as shown in the figure, an arc 11 is generated between the electrodes 1 and 2.
On the other hand, as a result of the movement of the operating rod 3, the movable puffer cylinder 4 attached to the operating rod 3 also moves to the right, compressing the arc-extinguishing gas in the compression chamber 6. This gas flows through the opening 4 of the puffer cylinder 4.
a, the gas is blown onto the arc 11 through the gas flow path 8 and the gas jet port 8a, and extinguishes the arc 11. This gas flow is split into two flows 12a and 12b, and the gas flow 12a split to the left in FIG.
The surrounding space 10 passes through the opening 7c of the insulating nozzle 7a.
leaks to. On the other hand, the gas flow 12b split to the right.
are the opening 7d of the insulating cover 7b and the opening 1 after the fixed electrode 1 is separated from the movable electrode 2.
3. It flows out into the surrounding space 10 through the opening 3a of the operating rod 3 and the opening 5a of the fixed puffer piston 5.

[背景技術の問題点] この様なしや断動作において、前述の機構によ
りアークが消弧された後には、正負に電離したプ
ラズマやアークにより高温に熱せられたガスが残
留する。これらのプラズマガス及び高温ガスは電
気伝導率が高く、また電気的絶縁耐力が低いた
め、消弧後電極1,2間に加わる再起電圧ため
に、電極1,2間に電流が流れたり、電極間に電
気的絶縁破壊が生じる等の理由により、しや断失
敗の原因となり易い。パツフア形ガスしや断器に
おいては、これらしや断失敗の原因となり易い残
留プラズマ及び高温ガスをも、前述のガス流によ
つて電極1,2間から除去する様設計されてい
る。従つて、パツフア形ガスしや断器のしや断性
能は、電極間へ消弧性ガスをいかに効率良く吹き
付けるかによつて決定する。
[Problems with the Background Art] In such a non-operational or disconnection operation, after the arc is extinguished by the above-described mechanism, positively and negatively ionized plasma and gas heated to a high temperature by the arc remain. Since these plasma gases and high-temperature gases have high electrical conductivity and low electrical dielectric strength, a current may flow between the electrodes 1 and 2 due to the re-electromotive voltage applied between the electrodes 1 and 2 after the arc is extinguished. Due to reasons such as electrical breakdown occurring between the two, it is easy to cause failure of the sheathing. The puffer-type gas cylinder disconnector is designed so that residual plasma and high-temperature gas, which tend to cause failure of the cylinder, are also removed from between the electrodes 1 and 2 by the aforementioned gas flow. Therefore, the breaker performance of a puffer-type gas breaker is determined by how efficiently the arc-extinguishing gas is blown between the electrodes.

例えば、第4図に示す様な従来型のガスしや断
器の吹き付け機構では、固定電極1が絶縁ノズル
7aのスロート部7a−1から抜け出す以前にお
いてもガス流12bがアークに吹き付けられるた
め、広いアーク時間範囲で消弧を行うことができ
るうえに、アークの熱によつて溶融・蒸発した電
極金属は電極1,2間からガス流12a,12b
によつて排除されるために、電極1,2間のガス
の導電率増加・電気的絶縁耐力低下等の悪影響を
受けないという利点がある。
For example, in the blowing mechanism of a conventional gas shield and disconnector as shown in FIG. 4, the gas flow 12b is blown onto the arc even before the fixed electrode 1 comes out of the throat portion 7a-1 of the insulated nozzle 7a. In addition to being able to extinguish the arc over a wide arc time range, the electrode metal melted and vaporized by the heat of the arc flows into gas flows 12a and 12b from between the electrodes 1 and 2.
This has the advantage that the gas between the electrodes 1 and 2 is not affected by adverse effects such as an increase in the conductivity of the gas or a decrease in the electrical dielectric strength.

しかし、その反面、ガス流12a及び12bの
分流点には、ガス流速が著しく低下する澱み領域
が発生する。この澱み領域近傍においてはガスの
吹き付け効率が著しく低下するため、第5図に示
すように、この領域に残存するプラズマガス及び
高温ガス14は排除されずにこの領域に留まるこ
とになる。この結果、澱み領域近傍の電気的絶縁
破壊強度はこの他の領域のガスよりも低下する。
このため、特に消弧後電極間に加わる再起電圧に
よる絶縁破壊が問題となるBTFしや断時におい
て、澱み領域近傍における絶縁破壊が誘因となつ
て電極間に再点弧が起こり、しや断に失敗する危
険があつた。
However, on the other hand, a stagnation region occurs at the split point of the gas flows 12a and 12b, where the gas flow velocity is significantly reduced. Since the gas blowing efficiency is significantly reduced in the vicinity of this stagnant region, the plasma gas and high temperature gas 14 remaining in this region are not removed and remain in this region, as shown in FIG. As a result, the electrical breakdown strength near the stagnant region is lower than that of the gas in other regions.
For this reason, especially during BTF shatter, where dielectric breakdown due to re-electromotive voltage applied between the electrodes after arc extinguishing is a problem, dielectric breakdown near the stagnation region causes re-ignition between the electrodes, and the shatter occurs. There was a risk of failure.

[発明の目的] 本発明は以上の問題に鑑みてなされたもので、
消去後澱み領域近傍に残留するプラズマガス及び
高温ガスを電極間より速やかに除去し、絶縁回復
特性の向上を実現し得るパツフア形ガスしや断器
を提供することを目的とするものである。
[Object of the invention] The present invention was made in view of the above problems, and
The object of the present invention is to provide a puffer-type gas shield and disconnector that can quickly remove plasma gas and high-temperature gas remaining in the vicinity of the stagnation region after erasing from between the electrodes and improve insulation recovery characteristics.

[発明の概要] 本発明のガスしや断器は、中空状の操作ロツド
の内部に第2固定ピストンを配設し、前記操作ロ
ツド内部は開極動作の前半においては第2固定ピ
ストンの周囲に、この第2固定ピストンの後背部
側へ向かうガス流路を形成し、開極動作の後半に
おいては第2固定ピストンが挿入されるシリンダ
を形成する様にしたものである。
[Summary of the Invention] The gas shield disconnector of the present invention has a second fixed piston disposed inside a hollow operating rod, and the inside of the operating rod is surrounded by the second fixed piston during the first half of the opening operation. A gas flow path toward the rear side of the second fixed piston is formed to form a cylinder into which the second fixed piston is inserted in the latter half of the opening operation.

そして、この様な構成により、開極動作の前半
においては従来のパツフア形ガスしや断器と同様
に動作してその利点をいかしつつ、しや断動作の
後半において操作ロツドの内部に第2のガス圧
縮・吹き付け機構を形成してガス流れを一方向と
し、澱み領域を消滅せしめて電極間よりプラズマ
ガスおよび高温ガスを速やかに排除し、消弧後に
おける速やかな絶縁回復を可能にしたものであ
る。
With this configuration, in the first half of the opening operation, it operates in the same way as a conventional puffer-type gas insulator or disconnector, taking advantage of its advantages, while in the second half of the opening operation, a second valve is installed inside the operating rod. A gas compression/blowing mechanism is formed to make the gas flow unidirectional, eliminate the stagnation area, quickly remove plasma gas and high temperature gas from between the electrodes, and enable prompt insulation recovery after arc extinguishment. It is.

[発明の実施例] 本発明の一実施例を第1図乃至第3図に基づい
て詳細に説明する。なお、第4図及び第5図の従
来型のパツフア形ガスしや断器と同一部品に付い
ては、同一符号を付して説明を省略する。
[Embodiment of the Invention] An embodiment of the present invention will be described in detail based on FIGS. 1 to 3. Components that are the same as those of the conventional puffer-type gas shield and disconnector shown in FIGS. 4 and 5 are designated by the same reference numerals and their explanations will be omitted.

第1図は本発明によるパツフア形ガスしや断器
の開極動作前半の状態を示す。同図において、中
空状の操作ロツド21の内部には第2固定ピスト
ン22が配設されている。この操作ロツド21及
び第2固定ピストン22の拡大図を第2図に示
す。図中第2固定ピストン22の外径をAとす
る。操作ロツド21の内部は、しや断動作の前半
に第2固定ピストン22が摺動する空間部分23
の内径をBとすると、 B>A の関係を満足するようにし、第2固定ピストン2
2の周囲にガス流路24が構成される。また、し
や断動作後半に第2固定ピストン22が摺動する
部分25の内径をA′とすると A′=A の関係を満足する様にして、第2シリンダが形成
されている。更に、操作ロツド21の可動電極2
側端部26には、径がCなる開口部27が設けら
れている。
FIG. 1 shows the state in the first half of the opening operation of the puffer type gas shield breaker according to the present invention. In the figure, a second fixed piston 22 is disposed inside a hollow operating rod 21. As shown in FIG. An enlarged view of the operating rod 21 and the second fixed piston 22 is shown in FIG. In the figure, the outer diameter of the second fixed piston 22 is designated as A. The inside of the operating rod 21 is a space 23 in which the second fixed piston 22 slides during the first half of the cutting operation.
Let B be the inner diameter of the second fixed piston 2, so that the relationship B>A is satisfied.
A gas flow path 24 is configured around 2. Furthermore, if the inner diameter of the portion 25 on which the second fixed piston 22 slides in the second half of the shearing operation is A', the second cylinder is formed so as to satisfy the relationship A'=A. Furthermore, the movable electrode 2 of the operating rod 21
The side end portion 26 is provided with an opening 27 having a diameter of C.

この様な構成の本実施例のパツフア形ガスしや
断器にしや断指令が与えられると、しや断動作の
前半においては、第3図に示すように圧縮室6で
圧力を高められた消弧性ガスは可動パツフアシリ
ンダ4の開口部4a、ガス流路8、ガス噴出口8
aを経て28a及び28bの2つの流れに分れ
る。ガス流の一部28aは絶縁ノズル7aの開口
部7cを経て図中左方の空間へ流出し、ガス流の
他の一部28bは絶縁カバー7bの開口部7d、
操作ロツド21の開口部27、第2の固定ピスト
ン22の周囲のガス流路27を経て図中右方へ流
れ、パツフアピストン5の開口部5aから周囲空
間へ流出する。
When a shearing command is given to the puffer-type gas shear breaker of this embodiment having such a configuration, the pressure is increased in the compression chamber 6 during the first half of the shearing operation, as shown in FIG. The arc-extinguishing gas is supplied to the opening 4a of the movable puffer cylinder 4, the gas passage 8, and the gas outlet 8.
It separates into two streams 28a and 28b via a. A part of the gas flow 28a flows out into the space on the left side in the figure through the opening 7c of the insulating nozzle 7a, and another part 28b of the gas flow flows through the opening 7d of the insulating cover 7b.
The gas flows to the right in the figure through the opening 27 of the operating rod 21 and the gas passage 27 around the second fixed piston 22, and flows out through the opening 5a of the puffer piston 5 into the surrounding space.

この段階における本実施例のガスしや断器は、
第1図に示した従来のパツフア形ガスしや断器と
同様に機能しており、固定電極1が絶縁ノズル7
aのスロート部7a−1から抜け出す以前におい
てもガス流の一部28bがアーク11へ吹き付け
られるため、アーク時間の短い領域においても効
率の良い消弧が可能である。
At this stage, the gas shutoff switch of this example is as follows:
It functions in the same way as the conventional puffer-type gas shield and disconnector shown in Figure 1, with the fixed electrode 1 connected to the insulated nozzle
Since a part of the gas flow 28b is blown onto the arc 11 even before it escapes from the throat portion 7a-1 of the arc 11, efficient arc extinguishment is possible even in a region where the arc time is short.

更にしや断動作が進行し後半に至ると、第3図
に示すように、第2の固定ピストン22は操作ロ
ツド21のうち内径がA′である部分25へ挿入
され、第2圧縮室23を構成している。この第2
圧縮室29にて圧力を高められた消弧性ガスは、
操作ロツド21の開口部27を経て図中左方へ流
出し、絶縁カバー7bの開口部7d、絶縁ノズル
7aの開口部7cを経て流れるガス流28cを形
成する。この段階では、澱み領域が消滅するため
に、残留プラズマガス及び高温ガスが速やかに排
除され、速やかな絶縁回復特性が実現し得る。
When the shearing operation further progresses and reaches the latter half, the second fixed piston 22 is inserted into the portion 25 of the operating rod 21 whose inner diameter is A', as shown in FIG. It consists of This second
The arc-extinguishing gas whose pressure has been increased in the compression chamber 29 is
A gas flow 28c is formed which flows out to the left in the figure through the opening 27 of the operating rod 21 and flows through the opening 7d of the insulating cover 7b and the opening 7c of the insulating nozzle 7a. At this stage, since the stagnation region disappears, residual plasma gas and high-temperature gas are quickly removed, and rapid insulation recovery characteristics can be realized.

なお、しや断動作の前半において第3図に示す
ガス流28bが効率良く流れるためには、操作ロ
ツド21端部の開口部27の有効断面積が可動電
極2の開口部(第3図に示す2a)の有効断面積
の少なくとも10%以上である必要がある。またし
や断動作の後半において第2の圧縮室29におけ
るガスの圧縮が効率良く行なわれるためには、操
作ロツドの開口部27の有効断面積は第2の圧縮
室29内部の有効断面積の40%以下であることが
望ましい。更に、第1図の状態から第3図の状態
へ転換するのは、固定電極1が絶縁ノズル7aの
ストローク部7a−1から図中左方へ抜け出るの
に同期している場合、最も効率の良い消弧が達成
し得る。
In order for the gas flow 28b shown in FIG. 3 to flow efficiently during the first half of the shearing operation, the effective cross-sectional area of the opening 27 at the end of the operating rod 21 must be larger than that of the opening of the movable electrode 2 (as shown in FIG. 3). It must be at least 10% of the effective cross-sectional area shown in 2a). In addition, in order to efficiently compress the gas in the second compression chamber 29 in the latter half of the cutting operation, the effective cross-sectional area of the opening 27 of the operating rod must be larger than the effective cross-sectional area inside the second compression chamber 29. It is desirable that it be 40% or less. Furthermore, the transition from the state shown in FIG. 1 to the state shown in FIG. Good arc extinction can be achieved.

[発明の効果] 以上の通り、本発明によれば、しや断動作の後
半に操作ロツドの内部に第2ガス圧力室が構成さ
れることによりガス流を発生させて、アークの消
弧後のガスの流れを絶縁ノズルの開口部方向に流
出させることが可能となるので、ガスの流れは同
一方向に向けられ、澱み領域近傍に残留するプラ
ズマガス及び高温ガスを電極間より速やかに除去
し、絶縁回復特性の向上を実現し得るパツフア形
ガスしや断器の提供が可能である。
[Effects of the Invention] As described above, according to the present invention, a gas flow is generated by forming a second gas pressure chamber inside the operating rod in the latter half of the shearing operation, and after the arc is extinguished. This allows the gas flow to flow out in the direction of the opening of the insulating nozzle, so the gas flow is directed in the same direction, and the plasma gas and high temperature gas remaining near the stagnation area can be quickly removed from between the electrodes. Therefore, it is possible to provide a puffer-type gas insulator and disconnector that can improve insulation recovery characteristics.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示すパツフア形ガ
スしや断器のしや断動作前半の状態を示す断面
図、第2図は第1図の操作ロツド及び固定ピスト
ンの構造を示す部分拡大断面図、第3図は本発明
のパツフア形ガスしや断器のしや断動作後半の状
態を示す断面図、第4図は従来形のパツフア形ガ
スしや断器のしや断動作中を示す断面図、第5図
は第4図の絶縁ノズル及び可動電極のガスの流れ
を示す部分拡大断面図である。 1……固定電極、2……可動電極、4……パツ
フアシリンダ、5……パツフアピストン、6……
圧縮室、7a……絶縁ノズル、7a−1……絶縁
ノズルのスロート部、7b……絶縁カバー、7c
……絶縁ノズルの開口部、8……ガス流路、8a
……ガス噴出口、11……アーク、12a,12
b……ガス流、21……操作ロツド、22……第
2固定ピストン、23,25……空間部分、24
……ガス流路、26……操作ロツド端部、27…
…開口部、28a,28b,28c……ガス流、
29……第2圧縮室。
Figure 1 is a cross-sectional view showing the first half of the shielding operation of a puffer-type gas shield and disconnector according to an embodiment of the present invention, and Figure 2 is a section showing the structure of the operating rod and fixed piston in Figure 1. An enlarged sectional view, FIG. 3 is a cross-sectional view showing the latter half of the sheathing operation of the puffer-type gas shield and disconnector of the present invention, and FIG. 4 shows the shielding operation of the conventional puffer-type gas shield and disconnector. FIG. 5 is a partially enlarged sectional view showing the gas flow of the insulating nozzle and movable electrode of FIG. 4. 1...Fixed electrode, 2...Movable electrode, 4...Puff cylinder, 5...Puff piston, 6...
Compression chamber, 7a... Insulating nozzle, 7a-1... Throat portion of insulating nozzle, 7b... Insulating cover, 7c
...Insulating nozzle opening, 8...Gas flow path, 8a
...Gas outlet, 11...Arc, 12a, 12
b... Gas flow, 21... Operating rod, 22... Second fixed piston, 23, 25... Space portion, 24
...Gas flow path, 26...Operation rod end, 27...
...openings, 28a, 28b, 28c...gas flow,
29...Second compression chamber.

Claims (1)

【特許請求の範囲】 1 共通の中心軸を有して配置され互いに接離可
能な固定電極、及びこの固定電極に対向して配置
され開極状態においてこの固定電極を包囲する状
態で接触する様に環状に配置された可動電極より
なる電極対と、 前記可動電極の周囲に位置する円筒状ガス流路
並びに前記中心軸の周囲に位置するガス噴出口を
形成する絶縁ノズルと、 この絶縁ノズルが固着され前記ガス流路へガス
の流入出を行わせる開口部を有する可動パツフア
シリンダと、 このパツフアシリンダの内部に挿入されこのパ
ツフアシリンダとの間に圧縮室を構成する様配置
された固定パツフアピストン、 前記可動電極及び可動パツフアシリンダを操作
機構部に連結する中空状操作ロツドを有し、 前記固定電極と前記可動電極との開極の際にこ
れら電極間で発生するアークに対して、前記圧縮
室内において圧縮された消弧性ガスを、前記可動
パツフアシリンダ開口部・前記ガス流路及び噴出
口を通じて吹き付ける様にしたものにおいて、 前記操作ロツドの内部に第2固定ピストンを配
設し、前記中空状操作ロツドの内部は開極動作の
前半においては前記固定ピストンの周囲に、この
第2固定ピストンの後背部側へ向かうガス流路を
形成し、開極動作後半においては、固定ピストン
が挿入されるシリンダを形成する様なものとした
ことを特徴とするパツフア形ガスしや断器。 2 前記操作ロツドの可動電極側端部の開口部径
が、その内部のシリンダ部分の内径よりも小さい
ものである特許請求の範囲第1項記載のパツフア
形ガスしや断器。 3 前記操作ロツドの可動電極側端部の開口部有
効断面積が、その内部のシリンダ部分の有効断面
積の40%以下であり且つ前記環状可動電極の内部
開口部の有効断面積の10%以上である特許請求の
範囲第1項記載のパツフア形ガスしや断器。 4 前記第2の固定ピストンが、操作ロツド内部
のシリンダ部分に挿入されるのが、前記固定電極
が前記絶縁ノズルのスロート部を抜け出るのに同
期している特許請求の範囲第1項記載のパツフア
形ガスしや断器。
[Scope of Claims] 1 Fixed electrodes that are arranged with a common central axis and can be moved toward and away from each other; and fixed electrodes that are arranged opposite to this fixed electrode and are in contact with each other so as to surround this fixed electrode in an open state. an electrode pair consisting of movable electrodes arranged in an annular manner; an insulated nozzle forming a cylindrical gas flow path located around the movable electrode and a gas jet port located around the central axis; a movable puffer cylinder that is fixed and has an opening that allows gas to flow in and out of the gas passage; and a fixed puffer piston that is inserted into the puffer cylinder and arranged to define a compression chamber between the puffer cylinder and the puffer cylinder. It has a hollow operating rod that connects the movable electrode and the movable puffer cylinder to the operating mechanism, and compresses the compressor in the compression chamber against the arc generated between the fixed electrode and the movable electrode when the electrodes are opened. The arc-extinguishing gas is blown through the movable puffer cylinder opening, the gas flow path, and the jet port, and a second fixed piston is disposed inside the operating rod, and the hollow operating rod is The interior forms a gas flow path around the fixed piston toward the rear side of the second fixed piston in the first half of the opening operation, and forms a cylinder into which the fixed piston is inserted in the second half of the opening operation. A patchwork type gas disconnector characterized by having a shape that makes it appear as if it were to be used. 2. The puffer type gas cylinder disconnector according to claim 1, wherein the opening diameter of the movable electrode side end of the operating rod is smaller than the inner diameter of the cylinder portion inside the operating rod. 3. The effective cross-sectional area of the opening at the movable electrode side end of the operating rod is 40% or less of the effective cross-sectional area of the internal cylinder portion, and is 10% or more of the effective cross-sectional area of the internal opening of the annular movable electrode. A puffer type gas shield disconnector according to claim 1. 4. The puffer according to claim 1, wherein the second fixed piston is inserted into a cylinder portion inside the operating rod in synchronization with the exit of the fixed electrode from the throat portion of the insulating nozzle. Shaped gas cutter.
JP5937785A 1985-03-26 1985-03-26 Buffer type gas breaker Granted JPS61220230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5937785A JPS61220230A (en) 1985-03-26 1985-03-26 Buffer type gas breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5937785A JPS61220230A (en) 1985-03-26 1985-03-26 Buffer type gas breaker

Publications (2)

Publication Number Publication Date
JPS61220230A JPS61220230A (en) 1986-09-30
JPH0568811B2 true JPH0568811B2 (en) 1993-09-29

Family

ID=13111527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5937785A Granted JPS61220230A (en) 1985-03-26 1985-03-26 Buffer type gas breaker

Country Status (1)

Country Link
JP (1) JPS61220230A (en)

Also Published As

Publication number Publication date
JPS61220230A (en) 1986-09-30

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