JPS63221523A - Vacuum switch gear - Google Patents
Vacuum switch gearInfo
- Publication number
- JPS63221523A JPS63221523A JP5593487A JP5593487A JPS63221523A JP S63221523 A JPS63221523 A JP S63221523A JP 5593487 A JP5593487 A JP 5593487A JP 5593487 A JP5593487 A JP 5593487A JP S63221523 A JPS63221523 A JP S63221523A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- main
- coil
- coil electrode
- main electrode
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 18
- 239000012212 insulator Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (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〕
この発明は、真空開閉装置に関し、特にしゃ断性を向上
する構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a vacuum switchgear, and particularly to a structure that improves interrupting performance.
第８図は例えば特開昭６１−２４５４２８号公報に示さ
れた従来の真空開閉装置に係る電極を示す斜視図であり
、図において、（４）は主電極、 ＱＯは磁界を発生さ
せるため、主電極（４）の外周を囲むように設けられた
コイル電極である。この電極は、例えば４分割して構成
されている。コイル電極α１の材料は、従来、主電極（
４）の材料と同じ、あるいはそれより低い抵抗値を有す
る材料で構成されており、この場合は主電極（４）とコ
イル電極α旧よ銅で形成されている。なお、図示してい
ないが、第８図に示す主電極（４）とコイル電極αＱよ
り構成される電極が真空容器内に相対向して１対設けら
れ、真空開閉装置を構成している。コイル電極Ｏｑは、
主電極（４）の他方の主電極との対向面と同レベルの対
向面を有する。FIG. 8 is a perspective view showing electrodes related to a conventional vacuum switchgear disclosed in, for example, Japanese Patent Application Laid-Open No. 61-245428. In the figure, (4) is the main electrode, and QO is for generating a magnetic field. This is a coil electrode provided so as to surround the outer periphery of the main electrode (4). This electrode is divided into four parts, for example. Conventionally, the material of the coil electrode α1 is the main electrode (
The main electrode (4) and the coil electrode α are made of copper. Although not shown, a pair of electrodes consisting of a main electrode (4) and a coil electrode αQ shown in FIG. 8 are provided in a vacuum container facing each other to constitute a vacuum switchgear. The coil electrode Oq is
It has a facing surface on the same level as the facing surface of the main electrode (4) with the other main electrode.
次に動作について説明する。相対向して接離自在に配置
された一対の主電極（４）を開離すると主電極（４）間
にアークが発生する。このアークはコイル電極αＱによ
って発生する軸方向磁界によって安定なアークとなる。Next, the operation will be explained. When a pair of main electrodes (4), which are disposed facing each other so as to be able to approach and separate, are separated, an arc is generated between the main electrodes (4). This arc becomes a stable arc due to the axial magnetic field generated by the coil electrode αQ.
従来の真空開閉装置は以上のように構成されており、コ
イル電極Ｏ旧よ主電極（４）と同一あるいはそれより低
い抵抗値を有する材料よりなるため、主電極（４）を開
離する際発生するアークが時としてコイル電極ＱＱに転
移し、コイル電極０ｑの極部的溶融や安定なアークを形
成するための軸方向磁界の発生を妨げ、しゃ断性能が劣
下するなどの問題点があった。The conventional vacuum switchgear is constructed as described above, and since the coil electrode O is made of a material with a resistance value that is the same as or lower than that of the main electrode (4), when the main electrode (4) is opened, The generated arc sometimes transfers to the coil electrode QQ, which causes problems such as local melting of the coil electrode 0q and the generation of an axial magnetic field to form a stable arc, resulting in a deterioration of the breaking performance. Ta.
この発明は上記のような問題点を解消するためになされ
たもので、アークがコイル電極αＱに転移することを防
止するとともに、安定な軸方向磁界を発生することがで
き、しゃ断性能の向上を図ることのできる真空開閉装置
を得ることを目的とする。This invention was made to solve the above-mentioned problems, and can prevent the arc from transferring to the coil electrode αQ, generate a stable axial magnetic field, and improve the breaking performance. The purpose is to obtain a vacuum switchgear that can achieve
この発明に係る真空開閉装置は、相対向する一対の主電
極の対向面側に対応するコイル電極面を、主電極を形成
する材料より高い抵抗値を有する高抵抗体で形成したも
のである。In the vacuum switchgear according to the present invention, the coil electrode surfaces corresponding to the opposing surfaces of a pair of opposing main electrodes are formed of a high-resistance material having a higher resistance value than the material forming the main electrodes.
この発明におけるコイル電極の対向面側は、主電極を形
成する材料より高い抵抗値を有する高抵抗体で形成され
ているため、アークのコイル電極への転移を防止すると
共に、安定な軸方向磁界を発生することができ、しゃ断
性能が向上する。In this invention, the opposing surface side of the coil electrode is made of a high-resistance material having a higher resistance than the material forming the main electrode, which prevents arc transfer to the coil electrode and provides a stable axial magnetic field. can be generated, improving the breaking performance.
以下、この発明の一実施例について説明する。 An embodiment of the present invention will be described below.
第１図において、Ｑυはコイル電極αＱの対向面を形成
する材料で、主電極（４）及び対向面以外のコイル電極
００を形成する材料より高い抵抗値を有する高抵抗体で
ある。この実施例では、主電極（４）とコイル電極ＱＯ
を銅で形成し、対向面側のコイル電極ＧＯをＳＵＳで覆
って構成している。なお、その他の構成は、第８図に示
す従来のものと同様あるいは相当のものである。In FIG. 1, Qυ is a material forming the opposing surface of the coil electrode αQ, and is a high resistance body having a higher resistance value than the material forming the main electrode (4) and the coil electrode 00 other than the opposing surface. In this example, the main electrode (4) and the coil electrode QO
is made of copper, and the coil electrode GO on the opposing surface side is covered with SUS. Note that the other configurations are similar to or equivalent to the conventional one shown in FIG.
相対向して接離自在に配置された一対の主電極（４）を
開離すると主電極（４）間にアークが発生する。When a pair of main electrodes (4), which are disposed facing each other so as to be able to approach and separate, are separated, an arc is generated between the main electrodes (4).
コイル電極αＧの対向面を形成する高抵抗体αυは主電
極（４）及び対向面以外のコイル電極（１０を形成する
材料より高い抵抗値を有するため、主電極（４）間に発
生したアークがコイルＨｐＳαＯに転移することを防ぎ
、コイルミ電極（１０部でのアークの発生を防止できる
とともに、安定した軸方向磁界を発生して安定したアー
クを形成することができる。このため、コイル電極ＯＧ
の損傷を低下でき、しゃ断性能を向上することができる
。第２図Ｃａ）はこの実施例に係る電極の対向面を示す
平面図であり、第２図（ｂ）〜（ｅ）はそれぞれ他の実
施例による電極の対向面を示す平面図である。第２図中
）に示す実施例では、主電極（４）に４本の溝（１〜を
設けている。図中、（１０１）。The high-resistance element αυ forming the opposing surface of the coil electrode αG has a higher resistance value than the main electrode (4) and the material forming the coil electrodes (10) other than the opposing surface, so the arc generated between the main electrodes (4) can be prevented from transferring to the coil HpSαO, and can prevent the occurrence of an arc at the coil electrode (10 part), as well as generate a stable axial magnetic field and form a stable arc.For this reason, the coil electrode OG
damage can be reduced and breaking performance can be improved. FIG. 2(a) is a plan view showing opposing surfaces of electrodes according to this embodiment, and FIGS. 2(b) to (e) are plan views showing opposing surfaces of electrodes according to other embodiments. In the embodiment shown in FIG. 2), four grooves (1 to 1) are provided in the main electrode (4). (101) in the figure.
（１０２λ（１０８）、 （１０４）はそれぞれコイル
電極を示す。主電極（４）に溝（至）を設けることによ
って上記実施例の効果に加えて次に示す効果がある。第
２図（ａ）に示すように、点（Ｑにアークが生じた時に
は、溝０榎がなければコイル電極（１０１）に多くの電
流が流れる。(102λ(108) and (104) respectively indicate coil electrodes. By providing a groove (to) in the main electrode (4), in addition to the effects of the above embodiment, the following effects can be obtained. ), when an arc occurs at point (Q), a large amount of current flows through the coil electrode (101) if there is no groove.
そのため、磁束が均一とならずに偏在し、アークが集中
するおそれがある。しかし、第２図（ｂ）のように溝α
〜を設ければ、電流が主電極（４）の中心付近を通って
各コイル電極（１０１）〜（１０４）に分散される。従
って、電流の偏在による磁束の不均一が防止できる。ま
た、溝（財）を設けることによって、渦電流を少なくで
きるという効果もある。Therefore, the magnetic flux is unevenly distributed without being uniform, and there is a possibility that arcs may be concentrated. However, as shown in Fig. 2(b), the groove α
If ~ is provided, the current will be distributed to each coil electrode (101) to (104) through the vicinity of the center of the main electrode (4). Therefore, non-uniform magnetic flux due to uneven distribution of current can be prevented. Additionally, providing the grooves has the effect of reducing eddy currents.
さらに他の実施例として、＠２図（Ｃ）に示すように、
溝０８１をコイル電極（１０１）〜（１０４）の数より
多く設けてもよい。この場合には一層磁束の均一化、渦
電流の減少を図ることができる。また、溝０均は第２図
（ｄ）、第２図（ｅ）のような形状に設けることもでき
る。なお、上記実施例ではコイル電極頭を４分割して設
けたものを示したが、何分側にしてもよい。As another example, as shown in @2 Figure (C),
The number of grooves 081 may be greater than the number of coil electrodes (101) to (104). In this case, it is possible to make the magnetic flux more uniform and to reduce eddy currents. Furthermore, the grooves can be provided in shapes as shown in FIG. 2(d) and FIG. 2(e). In the above embodiment, the coil electrode head is divided into four parts, but it may be divided into any number of parts.
また、コイル電極頭の対向面をＳＵＳで覆って形成した
が、これに限らず、あらかじめ銅とＳＵＳをはり合わせ
て一体にして成形してもよい。また、コイル電極（ｌ（
）の主愼極側やコイル電極外側等をＳＵＳで覆って形成
してもよく、コイル電極（１，０全体をＳＵＳで形成し
てもよい。また、高抵抗体０５７はＳＵＳに限るもので
はなく、主電極（４）を構成する材料より高い抵抗値を
有する材料なら何でもよい。さらに、例えば、セラミッ
ク等の導電性を持たない絶縁物で形成しても良く、この
場合は全く電気を通すことがないので、アークがコイル
電極ＱＧに転移することが無く、より効果が大きい。Further, although the facing surface of the coil electrode head is formed by covering it with SUS, the present invention is not limited to this, and copper and SUS may be bonded together in advance and molded integrally. In addition, the coil electrode (l(
) may be formed by covering the main pole side and the outside of the coil electrode with SUS, or the entire coil electrode (1, 0 may be formed of SUS).Also, the high resistance element 057 is not limited to SUS. Any material may be used as long as it has a higher resistance value than the material constituting the main electrode (4).Furthermore, it may be made of an insulator that does not have electrical conductivity, such as ceramic, in which case it conducts electricity at all. Therefore, the arc does not transfer to the coil electrode QG, and the effect is even greater.
以上のように、この発明によれば、相対向する一対の１
１１１８面側に対応するコイル電極面を、主電極を形成
する材料より高い抵抗値を有する材料で形成したので、
コイル電極へのアークの転移を防止できると共に、安定
な軸方向磁界を発生することができ、しゃ断性能を向上
できる真空開閉装置が得られる効果がある。As described above, according to the present invention, a pair of opposing one
Since the coil electrode surface corresponding to the 1118 side is formed of a material having a higher resistance value than the material forming the main electrode,
This has the effect of providing a vacuum switchgear that can prevent arc transfer to the coil electrode, generate a stable axial magnetic field, and improve interrupting performance.
第１図はこの発明の一実施例による真空開閉装置に係わ
る電極を示す斜視図、第２図（ａ）は第１図に示す電極
の平面図、第２図（ｂ）〜（ｅ）はそれぞれこの発明の
他の実施例の電極を示す平面図、第８図は従来の真空開
閉装置に係る電極を示す斜視図である。
図ニオイテ、（４）は主電極、 Ｑ（１、Ｑｏｌ） （
１０２）、 （１０Ｂ）、 （１０４）はコイル電極、
０９は主電極を形成する材料より高い抵抗値を有する高
抵抗体。
なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a perspective view showing an electrode related to a vacuum switchgear according to an embodiment of the present invention, FIG. 2(a) is a plan view of the electrode shown in FIG. 1, and FIGS. 2(b) to (e) are FIG. 8 is a plan view showing an electrode according to another embodiment of the present invention, and FIG. 8 is a perspective view showing an electrode according to a conventional vacuum switchgear. In Figure 1, (4) is the main electrode, Q(1, Qol) (
102), (10B), (104) are coil electrodes,
09 is a high resistance material having a higher resistance value than the material forming the main electrode. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (3)
対の主電極、及びこの主電極のうちの少くとも一方に、
上記主電極の外周を囲み、かつその対向面と同レベルの
対向面を有するコイル電極を備える真空開閉装置におい
て、上記コイル電極の対向面側を、上記主電極を形成す
る材料より高い抵抗値を有する高抵抗体で形成したこと
を特徴とする真空開閉装置。(1) A pair of main electrodes that are provided opposite to each other in a vacuum container so as to be able to come and go, and at least one of the main electrodes,
In a vacuum switchgear equipped with a coil electrode that surrounds the outer periphery of the main electrode and has an opposing surface on the same level as the opposing surface, the opposing surface side of the coil electrode has a resistance value higher than that of the material forming the main electrode. A vacuum switchgear characterized in that it is formed of a high-resistance material.
とも一本以上の溝が形成されていることを特徴とする特
許請求の範囲第１項記載の真空開閉装置。(2) The vacuum switchgear according to claim 1, wherein the main electrode has at least one groove formed from its outer end toward the inner side.
抵抗体は絶縁物であることを特徴とする特許請求の範囲
第１項又は第２項記載の真空開閉装置。(3) The vacuum switchgear according to claim 1 or 2, wherein the high resistance body having a higher resistance value than the material forming the main electrode is an insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5593487A JPH0619938B2 (en) | 1987-03-10 | 1987-03-10 | Vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5593487A JPH0619938B2 (en) | 1987-03-10 | 1987-03-10 | Vacuum switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63221523A true JPS63221523A (en) | 1988-09-14 |
| JPH0619938B2 JPH0619938B2 (en) | 1994-03-16 |
Family
ID=13012908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5593487A Expired - Fee Related JPH0619938B2 (en) | 1987-03-10 | 1987-03-10 | Vacuum switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619938B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0785754A (en) * | 1992-11-10 | 1995-03-31 | Mitsubishi Electric Corp | Vacuum valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5839389B2 (en) | 2011-09-30 | 2016-01-06 | 日新製鋼株式会社 | Manufacturing method of stepped square pipe |
-
1987
- 1987-03-10 JP JP5593487A patent/JPH0619938B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0785754A (en) * | 1992-11-10 | 1995-03-31 | Mitsubishi Electric Corp | Vacuum valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619938B2 (en) | 1994-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |