JPH0350374B2 - - Google Patents
Info
- Publication number
- JPH0350374B2 JPH0350374B2 JP57039467A JP3946782A JPH0350374B2 JP H0350374 B2 JPH0350374 B2 JP H0350374B2 JP 57039467 A JP57039467 A JP 57039467A JP 3946782 A JP3946782 A JP 3946782A JP H0350374 B2 JPH0350374 B2 JP H0350374B2
- Authority
- JP
- Japan
- Prior art keywords
- section
- extension
- fixed
- puffer
- mounting member
- 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
Links
- 239000000872 buffer Substances 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000005242 forging Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims 1
- 230000005684 electric field Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 208000018999 crinkle Diseases 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Circuit Breakers (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はしや断部を覆うように設けられた筒状
絶縁部材の耐電圧性を向上したパツフア形ガスし
や断器に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a puffer-type gas shield breaker in which the voltage resistance of a cylindrical insulating member provided to cover a shield breaker is improved.
近年、電力需要の増大に伴い、電力系続は大容
量化する傾向にある。これに使用されるガスしや
断器においても通電中における電極間の耐電圧及
び電極と接地タンク間の耐電圧の増強が要望され
るにいたつた。
In recent years, as the demand for electric power increases, there is a tendency for power grid connections to increase in capacity. It has become necessary to increase the withstand voltage between the electrodes during energization and the withstand voltage between the electrodes and the grounded tank in the gas cylinders and disconnectors used for this purpose.
従来から使用されており、しや断部が絶縁筒な
いし円筒状キヤパシタでおゝわれているパツフア
形ガスしや断器のしや断部を第１図に示す。接地
タンク１内部にSF6ガスのような絶縁ガス１ａと
ともにしや断部２が収納される。しや断部２は固
定電極部３と、これと対向した可動電極部５と、
可動電極部５と隣接して設けられるバツフア部６
とからなつている。。 FIG. 1 shows the shear section of a puffer-type gas cylinder disconnector that has been used in the past and whose sheath section is covered with an insulating tube or cylindrical capacitor. A sheath section 2 is housed inside a grounded tank 1 along with an insulating gas 1a such as SF 6 gas. The edge section 2 includes a fixed electrode section 3, a movable electrode section 5 facing the fixed electrode section 3,
A buffer section 6 provided adjacent to the movable electrode section 5
It is made up of. .
そして、両電極部３，５間に筒状絶縁部材７が
取付けられる。この筒状絶縁部材７の両端の取付
部材８は、端部部材８ａと、筒状絶縁部材７の外
周面に沿つて形成される延長部８ｂとからなつて
いる。延長部８ｂの先端は延長部８ｂの肉厚の
まゝ丸めて形成されている。このように延長部８
ｂの先端を丸めて形成することによつて取付部材
８の周辺の電界を緩和しているが、さらに接地タ
ンク１内壁に対する耐電圧及び両電極部間の耐電
圧を向上するために、夫々の取付部材８を覆うシ
ールド９がその外周面が接地タンク１内壁から所
定の距離を保つて設けられ、その端部は筒状絶縁
部材７側に丸められている。このようにシールド
９を設けることによつて電界をさらに緩和するこ
とができるが、このシールド９は構造が複雑であ
り、また取付のためのスペースを要するという解
決すべき間題点があつた。また接地タンク１内壁
から所定の距離を保つたシールド９の外周面が最
も接地タンク１の内壁に近いためタンク電界との
関係からこのシールド９の対向する接地タンク１
の内壁の範囲に金属異物が存在する場合、この範
囲において金属異物が起立し、浮上し易いという
問題点があつた。 Then, a cylindrical insulating member 7 is attached between both electrode parts 3 and 5. The mounting members 8 at both ends of the cylindrical insulating member 7 are made up of an end member 8a and an extension portion 8b formed along the outer peripheral surface of the cylindrical insulating member 7. The tip of the extension 8b is rounded to the same thickness as the extension 8b. In this way, the extension part 8
The electric field around the mounting member 8 is alleviated by rounding the tip of the b, but in order to further improve the withstand voltage against the inner wall of the grounding tank 1 and the withstand voltage between both electrode parts, A shield 9 that covers the mounting member 8 is provided so that its outer peripheral surface is kept at a predetermined distance from the inner wall of the grounded tank 1, and its end is rounded toward the cylindrical insulating member 7 side. Although the electric field can be further alleviated by providing the shield 9 in this manner, the shield 9 has a complicated structure and requires a space for installation, which is a problem that must be solved. Also, since the outer peripheral surface of the shield 9, which is kept at a predetermined distance from the inner wall of the grounded tank 1, is closest to the inner wall of the grounded tank 1, the shield 9 faces the grounded tank 1 due to the relationship with the tank electric field.
There is a problem in that when metal foreign matter is present in the area of the inner wall of the device, the metal foreign matter tends to stand up and float in this area.
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、筒状絶縁部材の取付部
材周辺の電界を緩和して、耐電圧性の向上をはか
るとともに、構造が簡単でスペースが小さく、か
つ安価な取付部材を設けたパツフア形ガスしや断
器を提供することにある。
The present invention has been made in consideration of the above points, and
The purpose of this is to reduce the electric field around the mounting member of the cylindrical insulating member and improve voltage resistance. Our goal is to provide a disconnector.
かゝる目的を達成するために、本発明はパツフ
ア形ガスしや断器のしや断部を覆うように設けら
れる筒状絶縁部材の両端が固定電極部側及び可動
電極部側に夫々取付部材によつて取付けられ、こ
の取付部材は筒状絶縁部材の夫々の端面に接する
当接部と、筒状絶縁部材の外側面に沿つた延長部
と、この延長部の先端をこの延長部の肉厚より大
きい曲率半径を有し、接地タンクの内壁側に突出
した円環部とから形成し、この取付部材周辺の電
界を緩和して耐電圧性を向上し、またこの取付部
材は構造が簡単で、取付スペースが小さく、安価
なことをその特徴とする。なお取付部材は当接
部、延長部及び円環部とを一体に形成するか、あ
るいは個々に溶接して形成する。
In order to achieve such an object, the present invention provides a structure in which both ends of a cylindrical insulating member provided to cover the sleeve or cut section of a puffer-type gas cylinder or disconnector are attached to the fixed electrode section side and the movable electrode section side, respectively. The mounting member has a contact portion contacting each end surface of the cylindrical insulating member, an extension portion along the outer surface of the cylindrical insulating member, and a tip of the extension portion. It has a radius of curvature larger than the wall thickness, and is formed from an annular part that protrudes toward the inner wall of the grounding tank, which alleviates the electric field around this mounting member and improves voltage resistance. Its features are that it is simple, requires little installation space, and is inexpensive. Note that the mounting member is formed by integrally forming the contact portion, the extension portion, and the annular portion, or by welding them individually.
以下本発明のパツフア形ガスしや断器の一実施
例を図面を参照して説明する。第２図において、
パツフア形ガスしや断器は接地タンク１１内部に
SF6ガスのような絶縁ガス１１ａとともにしや断
部１２を収納する。このしや断部１２は図示では
１個であるが、２個以上直列接続したものもあ
る。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the puffer type gas shield and disconnector of the present invention will be described below with reference to the drawings. In Figure 2,
The patchwork type gas shield disconnector is installed inside the grounded tank 11.
The sheath section 12 is housed together with an insulating gas 11a such as SF 6 gas. Although there is only one shingle break 12 in the illustration, there are also cases in which two or more are connected in series.
しや断部１２は固定電極部１３とこれと対向し
た可動電極部１５と、この可動電極部１５と接し
て設けられるパツフア部１６とからなる。固定電
極部１３には接地タンク１１の蓋１１ｂ側にシー
ルド１７を設け、また接続部１７ａを介して口出
部１８に導体１８ａを導出する。この導体１８ａ
は口出部１８に設けられる絶縁スペーサ１８ｂに
よつて気密に支持される。また、固定電極部１３
には固定電極取取付部材２０の中央に固定アーク
電極２１とこの周辺を囲にように固定通電接触子
２２を設け、反対側に前に述べたシールド１７及
び接続部１７ａが取付けられ、さらに連通孔２０
ａを形成する。 The crinkle section 12 is composed of a fixed electrode section 13, a movable electrode section 15 facing the fixed electrode section 13, and a puffer section 16 provided in contact with the movable electrode section 15. A shield 17 is provided in the fixed electrode part 13 on the lid 11b side of the grounded tank 11, and a conductor 18a is led out to the outlet part 18 via the connecting part 17a. This conductor 18a
is airtightly supported by an insulating spacer 18b provided at the outlet portion 18. In addition, the fixed electrode part 13
A fixed arc electrode 21 is provided at the center of the fixed electrode mounting member 20, and a fixed current-carrying contact 22 is provided surrounding the fixed arc electrode 21, and the shield 17 and the connecting portion 17a described above are mounted on the opposite side, and further communication is provided. hole 20
form a.
一方、パツフア部１６はシリンダ２３とピスト
ン２４からパツフア室２５を形成する。そして、
シリンダ２３の底部２３ａには固定電極部１３に
対向して可動電極部１５を形成する。 On the other hand, the puffer section 16 forms a puffer chamber 25 from the cylinder 23 and piston 24. and,
A movable electrode portion 15 is formed on the bottom portion 23a of the cylinder 23 so as to face the fixed electrode portion 13.
可動電極部１５は底部２３ａの中央に設けられ
る中空の可動アーク電極２６と、この周囲にガス
流路２７ａを形成するように絶縁ノズル２７を設
ける。また絶縁ノズル２７と底部２３ａとの取付
部分の外周に、固定通電接触子２２と対応する可
動通電接触子２８を設ける。さらに、ガス流路２
７ａは底部２３ａに形成された噴出孔２３ｂを介
してパツフア室２５と連通する。底部２３ａには
中空の可動アーク電極２６と連通する中空部２９
ａを有する操作ロツド２９が連結され、この操作
ロツド２９は絶縁ロツド３０を介して図示しない
操作機構部に連結される。 The movable electrode portion 15 includes a hollow movable arc electrode 26 provided at the center of the bottom portion 23a, and an insulating nozzle 27 provided around the movable arc electrode 26 to form a gas flow path 27a. Furthermore, a movable current-carrying contact 28 corresponding to the fixed current-carrying contact 22 is provided on the outer periphery of the attachment portion between the insulating nozzle 27 and the bottom portion 23a. Furthermore, gas flow path 2
7a communicates with the puffer chamber 25 via an ejection hole 23b formed in the bottom portion 23a. The bottom portion 23a has a hollow portion 29 that communicates with the hollow movable arc electrode 26.
An operating rod 29 having a diameter a is connected to the operating rod 29, and this operating rod 29 is connected to an operating mechanism (not shown) via an insulating rod 30.
ピストン２４は図示しない絶縁部材で接地タン
ク１１に支持されるセンターピース３１に支持部
材３２を介して支持される。支持部材３２の外周
側支持部材３２ａにスライドコンタクト３３を介
してシリンダ２３外周に電気的に摺動接触する。 The piston 24 is supported by a center piece 31 supported by the grounded tank 11 via a support member 32 by an insulating member (not shown). The outer circumferential support member 32a of the support member 32 is in electrical sliding contact with the outer circumference of the cylinder 23 via a slide contact 33.
そしてしや断部１２を覆うように絶縁筒あるい
は円筒コンデンサのような筒状絶縁部材３５を固
定電極部１３の固定電極取付部材２０側及び可動
電極部１５側の外周側支持部材３２ａに、夫々ほ
ぼ同じ形状に形成された夫々の取付部材３６によ
つて取付けられる。 Then, a cylindrical insulating member 35 such as an insulating cylinder or a cylindrical capacitor is attached to the outer peripheral support member 32a of the fixed electrode part 13 on the fixed electrode mounting member 20 side and on the movable electrode part 15 side so as to cover the shingle cut part 12. They are attached by respective attachment members 36 formed in substantially the same shape.
この取付部材３６は固定電極取付部材２０及び
外周側支持部材３２ａに接し、筒状絶縁部材３５
の端部に当接する当接部３６ａと、筒状絶縁部材
３５の外周面に沿つて延長した延長部３６ｂと、
この延長部３６ｂの先端に円環部３６ｃとからな
つている。円環部３６ｃの円形断面の半径、すな
わち曲率半径は延長部３６ｂの肉厚さより大きい
値に選定されており、接地タンク１１側に突出す
るように形成されている。また、この取付部材３
６は鍛造又は鋳造方法によつて一体に形成する。
あるいは、当接部３６ａ、延長部３６ｂ及び円環
部３６ｃを個々に製作した後、溶接によつて固着
して形成することができる。 This mounting member 36 is in contact with the fixed electrode mounting member 20 and the outer peripheral side support member 32a, and the cylindrical insulating member 35
an abutting portion 36a that abuts the end of the cylindrical insulating member 35; an extension portion 36b that extends along the outer peripheral surface of the cylindrical insulating member 35;
The extension portion 36b has an annular portion 36c at its tip. The radius of the circular cross section of the annular portion 36c, that is, the radius of curvature, is selected to be larger than the wall thickness of the extension portion 36b, and is formed so as to protrude toward the ground tank 11 side. In addition, this mounting member 3
6 is integrally formed by forging or casting.
Alternatively, the contact portion 36a, the extension portion 36b, and the annular portion 36c may be manufactured individually and then fixed by welding.
次に本発明の作用効果について説明する。取付
部材３６の延長部３６ｂの先端に、延長部３６ｂ
の肉厚より大きい曲率半径を有する断面円形の円
環部３６ｃを形成することにより、取付部材３６
近傍の電界を緩和し、接地タンク１１内壁に向う
耐電圧及び固定電極部１３と可動電極部１５との
間の耐電圧を向上できる。そして接地タンク１１
の内壁に金属異物が存在した場合、接地タンク１
１の内壁からの距離が円環部３６ｃで最も短いた
めタンク電界との関係からこの円環部３６ｃの対
向する接地タンク１１の内壁の範囲に存在する金
属異物が起立し、浮上する可能性があるが、その
範囲が従来のものより狭い範囲のため、金属異物
の起立可能性を低減できる。 Next, the effects of the present invention will be explained. An extension part 36b is attached to the tip of the extension part 36b of the mounting member 36.
By forming an annular portion 36c with a circular cross section having a radius of curvature larger than the wall thickness of the mounting member 36,
The electric field in the vicinity can be relaxed, and the withstand voltage toward the inner wall of the grounded tank 11 and the withstand voltage between the fixed electrode section 13 and the movable electrode section 15 can be improved. and ground tank 11
If there is a metal foreign object on the inner wall of the grounded tank 1
Since the distance from the inner wall of the grounded tank 11 is the shortest in the annular part 36c, there is a possibility that metal foreign matter existing in the range of the inner wall of the grounded tank 11 opposite to this annular part 36c will stand up and float due to the relationship with the tank electric field. However, since the range is narrower than that of conventional methods, the possibility of metal foreign objects standing up can be reduced.
また、取付部材３６は従来のように別個にシー
ルドを設けることがなく、取付部材３６の構造が
簡単で安価であり、さらに取付スペースを縮小で
きる。 Further, the mounting member 36 does not require a separate shield as in the conventional case, and the structure of the mounting member 36 is simple and inexpensive, and the mounting space can be further reduced.
以上説明したように本発明のパツフア形ガスし
や断器によれば、固定電極部と可動電極部間に筒
状絶縁部材を取付部材を介して取付け、この取付
部材の延長部の先端に、延長部の肉厚より大きい
曲率半径を有し、接地タンクの内壁側に突出させ
た円環部を形成することによつて、電界を緩和し
て耐電圧の向上をはかるとともに、取付部材の構
造が簡単で安価であり、かつ取付スペースを縮小
でき、接地タンクに付着した金属異物の起立浮上
の可能性を低減することができるという効果が得
られた。
As explained above, according to the puffer type gas shield breaker of the present invention, the cylindrical insulating member is attached between the fixed electrode part and the movable electrode part via the attachment member, and the extension part of the attachment member has a By forming an annular part with a radius of curvature larger than the wall thickness of the extension part and protruding toward the inner wall of the grounding tank, the electric field is alleviated and the withstand voltage is improved, and the structure of the mounting member is This has the effect of being simple and inexpensive, reducing the installation space, and reducing the possibility of metal foreign objects adhering to the ground tank rising up and floating.
第１図は従来のパツフア形ガスしや断器を示す
一部断面側面図、第２図は本発明のパツフア形ガ
スしや断器のしや断部を示す断面図である。
１１……接地タンク、１１ａ……絶縁ガス、１
２……しや断部、１３……固定電極部、１５……
可動電極部、１６……パツフア部、１８……口出
部、２１……固定アーク電極、２２……固定通電
接触子、２３……シリンダ、２４……ピストン、
２５……パツフア室、２６……可動アーク電極、
２７……絶縁ノズル、２８……可動通電接触子、
３５……筒状絶縁部材、３６……取付部材、３６
ａ……当接部、３６ｂ……延長部、３６ｃ……円
環部。
FIG. 1 is a partially sectional side view showing a conventional puffer-type gas shield and disconnector, and FIG. 2 is a sectional view showing a cutaway portion of the puffer-type gas shield and disconnector of the present invention. 11...Grounded tank, 11a...Insulating gas, 1
2...Shin section, 13...Fixed electrode part, 15...
Movable electrode part, 16...Puffer part, 18...Outlet part, 21...Fixed arc electrode, 22...Fixed current-carrying contact, 23...Cylinder, 24...Piston,
25... Patshua chamber, 26... Movable arc electrode,
27...Insulating nozzle, 28...Movable current-carrying contact,
35... Cylindrical insulating member, 36... Mounting member, 36
a... Contact portion, 36b... Extension portion, 36c... Annular portion.
Claims (1)
もにしや断部を収納し、このしや断部は接離可能
な固定電極部と可動電極部と、しや断動作に関連
して絶縁ガスを圧縮するパツフア部と、前記固定
及び可動電極部を覆い、かつ両電極部間に取付ら
れる筒状絶縁部とからなるものにおいて、前記固
定及び可動電極部間に前記筒状絶縁部材を取付け
る取付部材が、夫々の電極部に固着され筒状絶縁
部材の端部が当接する当接部と、この当接部から
連続し筒状絶縁部材の外周面に沿つてのびる延長
部と、この延長部の先端に延長部の肉厚より大き
い曲率半径を有するように前記接地タンクの内壁
側に突出させて形成した円環状とからなることを
特徴とするパツフア形ガスしや断器。 ２ 筒状絶縁部材が絶縁筒あるいは円筒状キヤパ
シタからな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 取付部材の当接部と延長部と円環部とを鍛造
又は鋳造によつて一体に形成した特許請求の範囲
第１項記載のパツフア形ガスしや断器。 ４ 取付部材の当接部と延長部と円環部とを溶接
によつて固着した特許請求の範囲第１項記載のパ
ツフア形ガスしや断器。[Claims] 1. A grounded tank is filled with an insulating gas and a shingle section is housed, and the shingle section has a fixed electrode section that can be brought into contact with and a movable electrode section, and a section that is related to the shingle cutting operation. and a cylindrical insulating part that covers the fixed and movable electrode parts and is attached between both the electrode parts. The mounting member for attaching the member has a contact portion that is fixed to each electrode portion and abuts the end of the cylindrical insulating member, and an extension portion that extends continuously from the contact portion and extends along the outer circumferential surface of the cylindrical insulating member. , a circular ring shape formed at the tip of the extension to protrude toward the inner wall of the grounded tank so as to have a radius of curvature larger than the wall thickness of the extension. 2. The puffer type gas shield and disconnector according to claim 1, wherein the cylindrical insulating member is an insulating tube or a cylindrical capacitor. 3. The puffer-type gas shield disconnector according to claim 1, wherein the abutting part, the extension part, and the annular part of the mounting member are integrally formed by forging or casting. 4. A puffer-type gas shield disconnector according to claim 1, in which the abutting part, the extension part, and the annular part of the mounting member are fixed by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3946782A JPS58157018A (en) | 1982-03-15 | 1982-03-15 | Buffer type gas breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3946782A JPS58157018A (en) | 1982-03-15 | 1982-03-15 | Buffer type gas breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58157018A JPS58157018A (en) | 1983-09-19 |
| JPH0350374B2 true JPH0350374B2 (en) | 1991-08-01 |
Family
ID=12553859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3946782A Granted JPS58157018A (en) | 1982-03-15 | 1982-03-15 | Buffer type gas breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58157018A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6052642A (en) * | 1983-08-26 | 1985-03-25 | 泉株式会社 | Coated yarn |
| US4750020A (en) * | 1985-04-03 | 1988-06-07 | Ricoh Company, Ltd. | Sheet feeding apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS534171B2 (en) * | 1977-03-25 | 1978-02-15 | ||
| JPS5412945B2 (en) * | 1972-07-31 | 1979-05-26 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS534171U (en) * | 1976-06-28 | 1978-01-14 | ||
| JPS5412945U (en) * | 1977-06-30 | 1979-01-27 |
-
1982
- 1982-03-15 JP JP3946782A patent/JPS58157018A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412945B2 (en) * | 1972-07-31 | 1979-05-26 | ||
| JPS534171B2 (en) * | 1977-03-25 | 1978-02-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58157018A (en) | 1983-09-19 |
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