JPS5917065Y2 - Patshua type gas shield disconnector - Google Patents
Patshua type gas shield disconnectorInfo
- Publication number
- JPS5917065Y2 JPS5917065Y2 JP4948579U JP4948579U JPS5917065Y2 JP S5917065 Y2 JPS5917065 Y2 JP S5917065Y2 JP 4948579 U JP4948579 U JP 4948579U JP 4948579 U JP4948579 U JP 4948579U JP S5917065 Y2 JPS5917065 Y2 JP S5917065Y2
- Authority
- JP
- Japan
- Prior art keywords
- resistant member
- exhaust port
- hollow shaft
- buffer
- heat
- 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
Links
Landscapes
- Circuit Breakers (AREA)
Description
【考案の詳細な説明】
本案はバッファ式ガスしゃ断器に係り、特に、大電流用
に使用するに好適なバッファ室を備えたガスしゃ断器に
関する。[Detailed Description of the Invention] The present invention relates to a buffer type gas breaker, and particularly to a gas breaker equipped with a buffer chamber suitable for use with large currents.
第1図は従来のバッファ式ガスしゃ断器のしゃ断連中に
おけるしゃ断部の断面図を示す。FIG. 1 shows a sectional view of a breaker in a breaker of a conventional buffer type gas breaker.
し、や断部は消弧性ガスを充填した容器内に設置される
。However, the end section is placed in a container filled with arc-extinguishing gas.
第1図において、1は固定接触子、2は固定ビスI・ン
、3は集電子、4は接触力を与えるバネで、これらは前
記容記へ電気的に絶縁した状態で個定されている。In Fig. 1, 1 is a fixed contact, 2 is a fixed screw I/N, 3 is a current collector, and 4 is a spring that provides contact force, and these are electrically insulated from the above description. There is.
ピン5は図示しない操作装置と連結し、図示左右方向に
作動する。The pin 5 is connected to an operating device (not shown) and operates in the left-right direction as shown in the drawing.
ピン5には、シャフト6、バッファシリンダ−7、可動
接触子8、絶縁ノズル9などが連結され、一体となって
動作する。A shaft 6, a buffer cylinder 7, a movable contact 8, an insulating nozzle 9, etc. are connected to the pin 5 and operate as one.
すなわち、ピン5を図示左方向に動作すれば、固定接触
子1と可動接触子8が接触し、電気通路が形成される。That is, when the pin 5 is moved to the left in the drawing, the fixed contact 1 and the movable contact 8 come into contact and an electrical path is formed.
10は接触力を与えるバネ、11は絶縁ノズル9とバッ
ファシリンダ−7を押えるノズル押えである。Reference numeral 10 represents a spring that applies contact force, and reference numeral 11 represents a nozzle holder that holds down the insulating nozzle 9 and the buffer cylinder 7.
しゃ断動作においては、図示しない操作装置によってピ
ン5を図示右方向に駆動し、固定接触子1と可動接触子
8を開離する。In the breaking operation, the pin 5 is driven rightward in the drawing by an operating device (not shown) to separate the fixed contact 1 and the movable contact 8.
その際発生するアークAは、固定ピストン2とバッファ
シリンダ−7によって形成されるバッファ室14が可動
接触子8の開離とともに圧縮され、得た圧力を矢印a、
l)、 C方向に吹付け、アークAを消弧し、し
ゃ断か完了する。The arc A generated at this time is caused by the buffer chamber 14 formed by the fixed piston 2 and the buffer cylinder 7 being compressed as the movable contact 8 is released, and the resulting pressure being
l), Spray in direction C to extinguish arc A and complete the breaker.
その際、C方向のガス流は排気孔15より矢印dの如く
排出される。At this time, the gas flow in the C direction is discharged from the exhaust hole 15 as indicated by the arrow d.
シャフト6とバッファシリンダ−7は通常一体で製作さ
れ、その材質は、電気伝導度がすぐれ、かつ可動部であ
るため軽量である二とが要求されるため、アルミニウム
か゛多く使用されている。The shaft 6 and the buffer cylinder 7 are usually manufactured as a single piece, and the material used for the shaft 6 is aluminum, which has excellent electrical conductivity and is required to be lightweight since it is a moving part.
ガス流す、Cはアークに触れた直後のイオン化した高温
ガスであるから、固定接触子1の先端部16や可動接触
子8は耐弧メタルを使用し、又、シャフト6内には耐熱
性部材17を設けて(特願昭48−(14836)アー
クや高温ガスによる損傷を防止している。Since the gas flow C is ionized high-temperature gas immediately after touching the arc, arc-resistant metal is used for the tip 16 of the fixed contact 1 and the movable contact 8, and a heat-resistant member is installed inside the shaft 6. 17 (Japanese Patent Application No. 14836) to prevent damage caused by arc or high temperature gas.
しかし、送電系統の大容量化に伴ない、短絡電流はます
ます増大しており、しゃ断性能を向上させるため、バッ
ファ室14の圧力を大きくせざるを得ない情勢にある。However, as the capacity of the power transmission system increases, the short circuit current increases more and more, and the pressure in the buffer chamber 14 has to be increased in order to improve the cutoff performance.
このようなしゃ断器において、シャフト6の排気孔15
の部分には、高温ガスによる熱的スI−レスと、バッフ
ァ室圧力による反力の機械的ストレスが同時に加わる。In such a breaker, the exhaust hole 15 of the shaft 6
Thermal stress due to the high temperature gas and mechanical stress due to the reaction force due to the buffer chamber pressure are simultaneously applied to the portion.
排気孔15の面積は、大電流をしゃ断するに十分な大き
さと、シャフト6の機械的強度によって決定されるが、
大電流を多数回しゃ断すると、排気孔15は高温ガスに
よって損傷され、機械的強度が弱くなってしまうという
欠点がある。The area of the exhaust hole 15 is determined by the size sufficient to cut off a large current and the mechanical strength of the shaft 6.
If the large current is cut off many times, the exhaust hole 15 will be damaged by the high temperature gas and its mechanical strength will be weakened.
このような状態でさらにしゃ断動作を続行すると、シャ
ツl−6が切断し、重大事故になる危険性を有している
。If the cutting operation is continued in this state, there is a risk that the shirt l-6 will be cut and a serious accident will occur.
本案の目的は、排気孔15部の損傷を防止することによ
って信頼性の高いバッファ形しゃ断器を提供するにある
。The purpose of the present invention is to provide a highly reliable buffer type breaker by preventing damage to the exhaust hole 15 portion.
本案は、排気孔の高温ガスと接する面を耐熱性部材で覆
うことを特徴としたものである。The present invention is characterized in that the surface of the exhaust hole that comes into contact with high-temperature gas is covered with a heat-resistant member.
第2図は、本案の一実施例で、シャフト6の一部を示す
。FIG. 2 shows a part of the shaft 6 in an embodiment of the present invention.
すなわち、排気孔15の部分に耐熱性部材(例えば、F
e、 Cu、 cu−=w、四弗化エチレン樹脂等)2
0を設けることによって、シャフト6を高温ガスより保
護することができる。That is, a heat-resistant member (for example, F
e, Cu, cu-=w, tetrafluoroethylene resin, etc.)2
By providing 0, the shaft 6 can be protected from high temperature gas.
耐熱性部材は、第3図に示すように形成され、第4図の
如<、20a、20bに分割されており、その固定方法
は、第2図に示すように、耐熱性部材17の直径d1と
d2の径差を利用してシャフト6と耐弧部材17間で挾
んで個定している。The heat-resistant member 17 is formed as shown in FIG. 3, and is divided into 20a and 20b as shown in FIG. They are sandwiched between the shaft 6 and the arc-proof member 17 and are individually determined by utilizing the difference in diameter between d1 and d2.
耐弧部材17は筒状で排気口15に対応する部分が開口
になっており、また耐熱性部材20は、排気口15近傍
のシャフト6の表面を覆って高温ガスからシャフト6を
保護している。The arc-resistant member 17 is cylindrical and has an opening at a portion corresponding to the exhaust port 15, and the heat-resistant member 20 covers the surface of the shaft 6 near the exhaust port 15 to protect the shaft 6 from high-temperature gas. There is.
この耐熱性部材20は周方向で4分割として形成しても
良い。This heat-resistant member 20 may be formed into four parts in the circumferential direction.
このように耐熱性部材20を中空状シャフト6の円周方
向で複数に分割すると、その分割部間に隙間が形成され
てしまう。If the heat-resistant member 20 is divided into a plurality of parts in the circumferential direction of the hollow shaft 6 in this way, gaps will be formed between the divided parts.
中空状シャフトの内面のうち排出ガスが流れを変える部
分が最も損傷されるため、この隙間をそのままにしてお
くことはできない。This gap cannot be left as is, since the inner surface of the hollow shaft, where the exhaust gases divert, will be most damaged.
また分割した耐熱性部材の支持を考慮しなけれは゛なら
ない。Also, consideration must be given to supporting the divided heat-resistant members.
この点、第2図および第4図から解かるように、耐熱性
部材20の内側に筒状の耐熱性部材17を挿入している
。In this regard, as can be seen from FIGS. 2 and 4, a cylindrical heat-resistant member 17 is inserted inside the heat-resistant member 20.
このため、耐熱性部材17と中空状シャツl−6の内面
間で耐熱性部材20を固定できると同時に、第4図のよ
うに耐熱性部材20の分割部の隙間は筒状耐熱性部材1
7で塞がれ、本考案の目的が達される。Therefore, the heat-resistant member 20 can be fixed between the heat-resistant member 17 and the inner surface of the hollow shirt l-6, and at the same time, as shown in FIG.
7, and the purpose of the present invention is achieved.
筒状耐熱性部材17は排気口15に対応して孔を有して
おり、排気ガス流を妨げることはない。The cylindrical heat-resistant member 17 has holes corresponding to the exhaust ports 15, so that the flow of exhaust gas is not obstructed.
以上のように本考案によれば、分割した耐熱性部材を用
いて排気口を排出ガスから保護するとき、中空状シャフ
トの直線部に筒状耐熱性部材を挿入して固定したため、
簡単な固定構造で中空状シャフトの損傷を極めて軽微に
することができると共に、排気口の耐熱性部材の分割部
間の隙間を排気ガスから保護することができる。As described above, according to the present invention, when protecting the exhaust port from exhaust gas using the divided heat-resistant member, the cylindrical heat-resistant member is inserted and fixed into the straight part of the hollow shaft.
With a simple fixing structure, damage to the hollow shaft can be minimized, and the gap between the divided parts of the heat-resistant member of the exhaust port can be protected from exhaust gas.
第1図は従来例を示すしゃ断部のしゃ断連中を示す断面
図、第2図は本案の実施例を示す部分拡大断面図、第3
図は本案で使用する耐弧性部材の透視図、第4図は第2
図のB−B’断面図である。
1・・・固定接触子、8・・・可動接触子、14・・・
バッファ室、9・・・絶縁ノズル、7・・・バッファシ
リンダ=6・・・シャフト、2・・・固定ピストン、1
5・・・排気孔、20・・・耐熱性部材。Fig. 1 is a sectional view showing the breaker of the breaker section showing the conventional example, Fig. 2 is a partially enlarged sectional view showing the embodiment of the present invention, and Fig. 3
The figure is a perspective view of the arc-resistant member used in this project, and Figure 4 is a perspective view of the arc-resistant member used in this project.
It is a BB' cross-sectional view of the figure. 1... Fixed contact, 8... Movable contact, 14...
Buffer chamber, 9... Insulating nozzle, 7... Buffer cylinder = 6... Shaft, 2... Fixed piston, 1
5... Exhaust hole, 20... Heat resistant member.
Claims (1)
の開離動作と共にバッファ室内のガスを圧縮し、これに
よって得た圧縮ガスの一部を前記可動接触子の中空部を
通し、ピストンと共に前記バッファ室を形成するバッフ
ァシリンダ−と一体の中空状シャフト内および中空状シ
ャフトの軸方向と直角に設けられた排気口を通して排出
するバッファ式ガスしゃ断器において、前記中空状シャ
フトの円周方向で複数に分割されて前記排気口内に挿入
された耐熱性部材を設け、前記中空状シャフト内の直線
部に、前記排気口に対応する部分に開口をもつ筒状の耐
熱性部材を設け、この筒状耐熱性部材と前記中空状シャ
フトの内面間に、前記排気口内の耐熱性部材を挾んで固
定すると共に、前記排気口内の耐熱性部材の分割部間の
隙間を前記筒状耐熱性部材で塞いだことを特徴とするバ
ッファ式ガスしゃ断器。It has a pair of fixed and hollow movable contacts, and as the movable contacts open and close, the gas in the buffer chamber is compressed, and a part of the compressed gas obtained thereby passes through the hollow part of the movable contacts, and the piston In the buffer type gas breaker, the gas is discharged through a hollow shaft integrated with the buffer cylinder forming the buffer chamber and through an exhaust port provided at right angles to the axial direction of the hollow shaft, in the circumferential direction of the hollow shaft. A heat-resistant member divided into a plurality of parts and inserted into the exhaust port is provided, and a cylindrical heat-resistant member having an opening at a portion corresponding to the exhaust port is provided in a straight portion of the hollow shaft. The heat resistant member in the exhaust port is sandwiched and fixed between the cylindrical heat resistant member and the inner surface of the hollow shaft, and the gap between the divided parts of the heat resistant member in the exhaust port is filled with the cylindrical heat resistant member. A buffer-type gas breaker that is characterized by being blocked.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4948579U JPS5917065Y2 (en) | 1979-04-16 | 1979-04-16 | Patshua type gas shield disconnector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4948579U JPS5917065Y2 (en) | 1979-04-16 | 1979-04-16 | Patshua type gas shield disconnector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55151047U JPS55151047U (en) | 1980-10-31 |
JPS5917065Y2 true JPS5917065Y2 (en) | 1984-05-18 |
Family
ID=28935170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4948579U Expired JPS5917065Y2 (en) | 1979-04-16 | 1979-04-16 | Patshua type gas shield disconnector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5917065Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59117029A (en) * | 1982-12-23 | 1984-07-06 | 三菱電機株式会社 | Gas breaker |
-
1979
- 1979-04-16 JP JP4948579U patent/JPS5917065Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS55151047U (en) | 1980-10-31 |
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