JPH0646607B2 - Expansion joint structure - Google Patents
Expansion joint structureInfo
- Publication number
- JPH0646607B2 JPH0646607B2 JP61149946A JP14994686A JPH0646607B2 JP H0646607 B2 JPH0646607 B2 JP H0646607B2 JP 61149946 A JP61149946 A JP 61149946A JP 14994686 A JP14994686 A JP 14994686A JP H0646607 B2 JPH0646607 B2 JP H0646607B2
- Authority
- JP
- Japan
- Prior art keywords
- bellows
- plate
- side plate
- bushing
- end plate
- 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 - Fee Related
Links
Landscapes
- Housings And Mounting Of Transformers (AREA)
- Gas-Insulated Switchgears (AREA)
- Insulators (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ この発明は、ガス絶縁開閉装置に接続される電力用変圧
器等における伸縮接続部構造に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion / contraction connection structure in a power transformer or the like connected to a gas insulated switchgear.
＜従来の技術＞ 第４図に電力用三相変圧器における接続部の従来例が示
されていて、図外右方の変圧器本体から延出された管路
形成用筒体２０にベローズ２１及び筒体２２が連結さ
れ、これらの内部に、絶縁油を充填した伸縮可能な絶縁
室２３が形成されている。<Prior Art> FIG. 4 shows a conventional example of a connecting portion in a three-phase power transformer, in which a bellows 21 is attached to a pipe forming cylinder 20 extending from a transformer body on the right side of the drawing. And the tubular body 22 are connected to each other, and an expandable insulating chamber 23 filled with insulating oil is formed inside them.
筒体２２の外側には、図示しないガス絶縁開閉装置との
接続用の鏡板２４が備えられていて、これに３本のブッ
シング２５（図では２本のみ表示）が貫通止着され、更
に絶縁室２３の内部において各ブッシング２５に環状の
変流器２６が外嵌装着されている。On the outside of the cylindrical body 22, there is provided an end plate 24 for connection with a gas insulation switchgear (not shown), to which three bushings 25 (only two are shown in the figure) are fixed by penetrating and further insulating. An annular current transformer 26 is externally fitted to each bushing 25 inside the chamber 23.
＜発明が解決しようとする問題点＞ 上記従来構造においては、ベローズ２１が三相一括形の
大径に構成されているために、伸縮接続部が長くかつ大
型化し、ここに形成される絶縁室２３の容積が大きくな
って油量が多いものとなっていた。<Problems to be Solved by the Invention> In the above-described conventional structure, since the bellows 21 is configured to have a large diameter of a three-phase collective type, the expansion and contraction connecting portion becomes long and large, and the insulating chamber formed here is formed. The volume of 23 became large and the amount of oil was large.
また、ベローズ２１を介して伸縮可能にした接続部の構
造では、装置を設置箇所へ輸送するときにベローズ２１
の変形を阻止しておく必要があり、ベローズ２１の両端
フランジを４本のシッピングスタッド２４で結合してお
くことになる。Further, in the structure of the connecting portion which is expandable and contractable via the bellows 21, the bellows 21 can be transported when the device is transported to the installation site.
It is necessary to prevent the deformation of the above, and the flanges at both ends of the bellows 21 are joined by four shipping studs 24.
しかし、上記のようにベローズ２１の外端側に三相一括
形の筒体２２を結合した構造では、ベローズ先端側での
重量が相当大きく、前記したシッピングスタッド２４だ
けでは支えることができず、筒体部分を下方より支える
棚受け状の支持枠２５を別途変圧器本体から延出するよ
うにしており、このため伸縮接続部全体が大型化すると
ともにコストアップを招くことにもなっていた。However, in the structure in which the three-phase collective type tubular body 22 is coupled to the outer end side of the bellows 21 as described above, the weight on the tip end side of the bellows is considerably large and cannot be supported only by the shipping stud 24 described above. A shelf-supporting support frame 25 that supports the cylindrical portion from below is separately extended from the transformer main body, which results in an increase in the size of the entire expansion-contraction connection portion and an increase in cost.
本発明はかかる従来欠点を解消することを目的とするも
のである。The present invention aims to eliminate such a conventional defect.
＜問題点を解決するための手段＞ 上記目的を達成するために、本発明においては、絶縁室
を形成する筒体の側板に複数のブッシングを貫通し、こ
のブッシングを側板の外側に配置したガス開閉装置への
接続用の鏡板に支持させ、側板と鏡板との間において各
ブッシングに独立してベローズを外嵌し、ベローズの両
端フランジを側板及び鏡板にそれぞれ連結し、各ベロー
ズ内を前記絶縁室に連通し、かつ、各ベローズの両端フ
ランジを複数のシッピングバーで結合可能に構成すると
ともに、側板と鏡板とを複数箇所において連結板で結合
可能に構成した。<Means for Solving the Problems> In order to achieve the above object, in the present invention, a gas having a plurality of bushings penetrating the side plate of the cylindrical body forming the insulating chamber and having the bushings arranged outside the side plate is used. The bellows is externally fitted to each bushing independently between the side plate and the mirror plate, and the both end flanges of the bellows are connected to the side plate and the mirror plate respectively, and the inside of each bellows is insulated by the above-mentioned insulation. The bellows are connected to the chamber, and both end flanges of each bellows can be connected by a plurality of shipping bars, and the side plate and the end plate can be connected by connecting plates at a plurality of positions.
＜作用＞ 上記構成によると、各ブッシングに外嵌されるベローズ
は小径のものとなり、ベローズ内の油量も少量となる。<Operation> According to the above configuration, the bellows fitted onto each bushing has a small diameter, and the amount of oil in the bellows is small.
輸送時には筒体の重量はベローズに作用することがな
く、各ベローズの両端フランジに亙って架設したシッピ
ングバーおよび筒体側板と鏡板とに亙って架設した連結
板によって鏡板及びブッシングの重量が確実に支えられ
る。During transportation, the weight of the cylinder does not act on the bellows, and the weight of the end plate and bushing is increased by the shipping bar installed over both end flanges of each bellows and the connecting plate installed over the side plate and end plate of the cylinder. It is surely supported.
＜実施例＞ 第１図には、伸縮接続部の縦断側面が示される。同図に
おいて、６は変圧器本体１に連結された筒体であり、そ
の内部に絶縁油が充填されて絶縁室７が形成されてい
る。筒体６の外端には側板８が取り付けられていて、こ
の側板８に３本のブッシング２，…（図では２本のみ表
示）が貫通され、これに挿通された導体９が変圧器本体
１側に延出されている。<Example> FIG. 1 shows the longitudinal side surface of the expansion and contraction connecting portion. In the figure, reference numeral 6 is a cylindrical body connected to the transformer body 1, and an insulating chamber 7 is formed by filling the inside thereof with insulating oil. A side plate 8 is attached to the outer end of the tubular body 6, and three bushings 2, ... (Only two are shown in the drawing) are penetrated through the side plate 8, and the conductor 9 inserted into the bushing 2, ... It is extended to the 1st side.
前記側板８の外側箇所には各ブッシング２を支持した鏡
板１０が配置され、この鏡板１０と側板８との間に亙っ
て各ブッシング２を独立に内挿するベローズ１１が取り
付けられている。前記鏡板１０はガス絶縁開閉装置（図
示せず）に接続されるものであり、運搬時にはカバー１
２が取り付けられる。An end plate 10 that supports each bushing 2 is arranged outside the side plate 8, and a bellows 11 that independently inserts each bushing 2 is attached between the end plate 10 and the side plate 8. The end plate 10 is connected to a gas-insulated switchgear (not shown), and the cover 1 is used during transportation.
2 is attached.
前記絶縁室７の内部において、各ブッシング２には環状
の変流器１３がそれぞれ外嵌装着されている。Inside the insulating chamber 7, an annular current transformer 13 is externally fitted to each bushing 2.
上記のように構成された伸縮接続部は輸送時には次のよ
うにして固定される。The expansion / contraction connection portion configured as described above is fixed as follows during transportation.
つまり、第２図および第３図に示すように、各ベローズ
１１の両端フランジ11a,11bの外周面に３本のシッピン
グバー１３がボルト連結される。また側板８と鏡板１０
の対向面にはそれぞれ３個のブラケット１４，１５が突
設され、対向するブラケット１４，１５間に連結板１６
がボルト連結される。That is, as shown in FIGS. 2 and 3, three shipping bars 13 are bolted to the outer peripheral surfaces of the end flanges 11a and 11b of each bellows 11. Further, the side plate 8 and the end plate 10
Three brackets 14 and 15 are respectively provided on the facing surfaces of the brackets, and a connecting plate 16 is provided between the facing brackets 14 and 15.
Are bolted together.
前記シッピングバー１３は、その両端一側縁にボルト挿
通用の切欠き凹部１７，１７が設けられていて、単孔の
場合に比較してシッピングバー１３の着脱が行ないやす
くなっている。The shipping bar 13 is provided with notched recesses 17, 17 for inserting bolts at both side edges thereof, so that the shipping bar 13 can be easily attached and detached as compared with the case of a single hole.
また、前記連結板１６は、側板８側のブラケット１４に
対するボルト挿通部１８が単孔であり、他方のブラケッ
ト１５に対するボルト挿通部１９は切欠き凹部に構成さ
れ、これによって連結板１６の着脱の容易化が図られて
いる。Further, in the connecting plate 16, the bolt inserting portion 18 for the bracket 14 on the side plate 8 side is a single hole, and the bolt inserting portion 19 for the other bracket 15 is formed as a notched concave portion, whereby the connecting plate 16 can be attached and detached. It has been made easier.
尚、前記シッピングバー１３及び連結板１６は機体の据
え付け後、取り外される。The shipping bar 13 and the connecting plate 16 are removed after the machine body is installed.
＜発明の効果＞ 以上説明したように、本発明によれば次のような効果が
得られる。<Effects of the Invention> As described above, according to the present invention, the following effects can be obtained.
(1)ベローズが三相一括形でなく、一相ずつ独立したも
のとなったので、ベローズ自体が小径で短いものとな
り、伸縮接続部が短くなった。その結果、ベローズ内へ
充填する油量が減少し、軽量化を図ることができた。(1) Since the bellows are not three-phase all-in-one type but independent one by one, the bellows itself has a small diameter and is short, and the expansion joint is short. As a result, the amount of oil filled in the bellows was reduced, and the weight could be reduced.
(2)ベローズ部分の先端側に筒体が無く、軽くなったの
で、輸送時においても各ベローズ部に取り付けるシッピ
ングバーおよび側板と鏡板との間に取り付ける連結板だ
けで充分な強度をもつため、ベローズの変形を阻止する
ことができ、特別な補強構造が不要となり、小型化、部
品の節減が可能となった。(2) Since there is no cylinder on the tip side of the bellows part and it is lighter, even during shipping, since only the shipping bar attached to each bellows part and the connecting plate attached between the side plate and the end plate have sufficient strength, The bellows can be prevented from deforming, no special reinforcement structure is required, and it is possible to reduce the size and the number of parts.
(3)ベローズを１相ずつ独立させたので、ベローズ部で
の多少のねじり吸収が可能となり、鏡板とガス絶縁開閉
装置との接続が容易となった。(3) Since the bellows are independent for each phase, it is possible to absorb some twist in the bellows, which facilitates the connection between the end plate and the gas insulated switchgear.
第１図ないし第３図は、本発明に係る伸縮接続部構造を
示し、第１図は一次側伸縮接続部分の縦断側面図、第２
図は第１図におけるＡ−Ａ線断面図、第３図は要部の拡
大図である。第４図は従来の伸縮接続部の構造を示す縦
断側面図である。 １…変圧器本体、２…ブッシング、６…筒体、７…絶縁
室、８…側板、１０…鏡板、１１…ベローズ、11a,11b
…両端フランジ、１３…シッピングバー、１６…連結
板。1 to 3 show a telescopic connecting portion structure according to the present invention. FIG. 1 is a longitudinal side view of a primary side telescopic connecting portion, and FIG.
The drawing is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is an enlarged view of a main part. FIG. 4 is a vertical sectional side view showing the structure of a conventional expansion and contraction connecting portion. DESCRIPTION OF SYMBOLS 1 ... Transformer main body, 2 ... Bushing, 6 ... Cylindrical body, 7 ... Insulation chamber, 8 ... Side plate, 10 ... End plate, 11 ... Bellows, 11a, 11b
... Both end flanges, 13 ... Shipping bar, 16 ... Connecting plate.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浜本 哲夫 京都府京都市右京区梅津高畝町47番地 日 新電機株式会社内 (72)発明者 藤川 栄一 京都府京都市右京区梅津高畝町47番地 日 新電機株式会社内 (72)発明者 木村 二郎 京都府京都市右京区梅津高畝町47番地 日 新電機株式会社内 (72)発明者 喜多 敏 京都府京都市右京区梅津高畝町47番地 日 新電機株式会社内 (72)発明者 黒澤 登 京都府京都市右京区梅津高畝町47番地 日 新電機株式会社内 (72)発明者 中井 克是 京都府京都市右京区梅津高畝町47番地 日 新電機株式会社内 (72)発明者 宇野 直樹 京都府京都市右京区梅津高畝町47番地 日 新電機株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Hamamoto 47 Umezu Takaunecho, Ukyo-ku, Kyoto Prefecture Nissin Electric Co., Ltd. (72) Inventor Eiichi Fujikawa 47 Umezu Takaunecho, Ukyo-ku, Kyoto City Nissin Incorporated (72) Inventor Jiro Kimura 47 Umezu Takaunecho, Ukyo-ku, Kyoto Prefecture Nissin Electric Co., Ltd. (72) Inventor Satoshi Kita 47 Umezu Takaunecho, Ukyo-ku, Kyoto City, Kyoto Nissin Electric Co., Ltd. 72) Inventor Noboru Kurosawa 47 Umezu-Takaunecho, Ukyo-ku, Kyoto Prefecture, Kyoto Prefecture Nissin Electric Co., Ltd. (72) Inventor Katsue Nakai 47 Umezu-Takaunecho, Ukyo-ku, Kyoto City, Kyoto Prefecture (72) Invention Person Naoki Uno 47 Umezu Takaune-cho, Ukyo-ku, Kyoto City, Kyoto Prefecture Nissin Electric Co., Ltd.
Claims (1)
シングを貫通し、このブッシングを側板の外側に配置し
たガス開閉装置への接続用の鏡板に支持させ、側板と鏡
板との間において各ブッシングに独立してベローズを外
嵌し、ベローズの両端フランジを側板及び鏡板にそれぞ
れ連結し、各ベローズ内を前記絶縁室に連通し、かつ、
各ベローズの両端フランジを複数のシッピングバーで結
合可能に構成するとともに、側板と鏡板とを複数箇所に
おいて連結板で結合可能に構成したことを特徴とする伸
縮接続部構造。1. A plurality of bushings are penetrated through a side plate of a cylindrical body forming an insulating chamber, and the bushing is supported by an end plate for connection to a gas switchgear disposed outside the side plate, and the end plate is provided between the side plate and the end plate. In the above, the bellows are externally fitted to each bushing independently, the both end flanges of the bellows are connected to the side plate and the end plate, respectively, and the inside of each bellows communicates with the insulating chamber, and
An expandable joint structure, wherein both end flanges of each bellows can be connected by a plurality of shipping bars, and side plates and end plates can be connected by connecting plates at a plurality of locations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61149946A JPH0646607B2 (en) | 1986-06-26 | 1986-06-26 | Expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61149946A JPH0646607B2 (en) | 1986-06-26 | 1986-06-26 | Expansion joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS636817A JPS636817A (en) | 1988-01-12 |
| JPH0646607B2 true JPH0646607B2 (en) | 1994-06-15 |
Family
ID=15486033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61149946A Expired - Fee Related JPH0646607B2 (en) | 1986-06-26 | 1986-06-26 | Expansion joint structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0646607B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837767B2 (en) * | 1978-08-29 | 1983-08-18 | 三菱電機株式会社 | Insulated conductor connection device |
| JPS5892823U (en) * | 1981-12-16 | 1983-06-23 | 株式会社東芝 | Expandable busbar container for gas insulated busbars |
-
1986
- 1986-06-26 JP JP61149946A patent/JPH0646607B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS636817A (en) | 1988-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |