JPS582028Y2 - transformer expansion device - Google Patents
transformer expansion deviceInfo
- Publication number
- JPS582028Y2 JPS582028Y2 JP3446578U JP3446578U JPS582028Y2 JP S582028 Y2 JPS582028 Y2 JP S582028Y2 JP 3446578 U JP3446578 U JP 3446578U JP 3446578 U JP3446578 U JP 3446578U JP S582028 Y2 JPS582028 Y2 JP S582028Y2
- Authority
- JP
- Japan
- Prior art keywords
- bellows
- transformer
- pressure
- expansion device
- elephant
- 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
- Transformer Cooling (AREA)
- Housings And Mounting Of Transformers (AREA)
Description
【考案の詳細な説明】 本考案は変圧器の膨張装置に関する。[Detailed explanation of the idea] The present invention relates to a transformer expansion device.
一般に変圧器と外部との電気的接続をケーブルで行う場
合、変圧器の油中ブッシングとケーブルヘッドとを接続
するためにエレファント室が設けられているものである
が、このエレファント室は構造上から容積が小さく、圧
力上昇による膨張量が小さい為、当該コレファント室内
で例えば短絡などの事故が発生して絶縁材の熱膨張や充
填油の気化現象などが生じ圧力が急激に上昇した場合、
その急激な圧力上昇を押えることはできないものであり
、為にタンク破壊を招くおそれが多分にあった。Generally, when an electrical connection between a transformer and the outside world is made using a cable, an elephant chamber is provided to connect the submerged bushing of the transformer and the cable head, but this elephant chamber is structurally difficult. Because the volume is small and the amount of expansion due to pressure rise is small, if an accident such as a short circuit occurs in the corresponding correphant room and the pressure suddenly increases due to thermal expansion of the insulation material or vaporization of the filling oil,
The rapid rise in pressure could not be suppressed, and there was a high risk of tank destruction.
そこで本考案は上述従来の事情に鑑みて検討の結果、変
圧器タンク、エレファント室内での事故による急激な圧
力上昇を吸収できて上昇率を下げることを目的とする新
規な膨張装置を提案するものであって、その要旨とする
ところは、変圧器タンクに連設してエレファント室にベ
ローを連設し、圧力上昇によるベローの変動を吸収可能
に、同ベローとコンサベータを伸縮ホースで連結した点
にある。Therefore, as a result of studies in view of the above-mentioned conventional circumstances, this invention proposes a new expansion device that can absorb sudden pressure increases caused by accidents in transformer tanks and elephant rooms, and that aims to reduce the rate of pressure increase. The gist of this is that a bellow was connected to the transformer tank and connected to the elephant room, and the bellow and the conservator were connected with an elastic hose to absorb fluctuations in the bellow caused by pressure increases. At the point.
以下に本考案を図示の実施例に基づいて詳述すれば、第
1図の平面図と、第2図の縦断面図が示す如く、ケーシ
ング1によりその内部に形成されるエレファント室2は
、はぼL字形に屈曲酸されて、上側端で変圧器タンク3
と中間部に接続フランジ4を介在して、連設されケーブ
ルヘッド5と油中貫通ブッシング6により接続されて接
続リード7を内装しである。The present invention will be described in detail below based on the illustrated embodiment. As shown in the plan view of FIG. 1 and the vertical sectional view of FIG. 2, the elephant chamber 2 formed inside the casing 1 is The upper end of the transformer tank 3 is bent into an L-shape.
The cable head 5 is connected to the cable head 5 by a submerged bushing 6 with a connecting flange 4 interposed in the middle thereof, and a connecting lead 7 is provided inside.
ケーシング1は変圧器タンク3に連設されているが、そ
の内部のエレファント室2には、変圧器タンク3と別々
に絶縁油O及び0′が満たされている。The casing 1 is connected to the transformer tank 3, but an elephant chamber 2 inside the casing 1 is filled with insulating oils O and 0' separately from the transformer tank 3.
このように形成されているエレファント室2には、屈曲
酸されて得た下側部の頂壁8に立設した突筒9により開
成された開口部10に連通して、ベロー11が縦軸方向
へ伸縮するように連結配置してあり、該ベロー11の軸
線延長線上側には、前記変圧器タンク3の外壁に固設さ
れている支持脚12に支持されてコンサベータ13が配
置しである。In the elephant chamber 2 formed in this manner, a bellows 11 is connected to an opening 10 formed by a projecting tube 9 erected on the top wall 8 of the lower side obtained by bending acid. A conservator 13 is disposed above the axial extension line of the bellows 11 and is supported by support legs 12 fixed to the outer wall of the transformer tank 3. be.
このコンサベータ13は、絶縁油Oの膨張・収縮に応動
する隔膜14を具備すると共に、その上側から延出平曲
したパイプ15の下端にブリーザ16を具えている。This conservator 13 includes a diaphragm 14 that responds to the expansion and contraction of the insulating oil O, and a breather 16 at the lower end of a flat pipe 15 extending from above.
そして更に本考案によるときは、上記ベロー11の上側
端とコンサベータ13の底壁13′との間は適当な間隔
に保持させてあって、その間隔内配置として上記ベロー
11とコンサベータ13とを上記ベロー11よりも径小
とした伸縮ホース17で連通連結しである。Further, according to the present invention, an appropriate distance is maintained between the upper end of the bellows 11 and the bottom wall 13' of the conservator 13, and the bellows 11 and the conservator 13 are arranged within this distance. are connected to each other by a telescopic hose 17 having a diameter smaller than that of the bellows 11.
つまりこの伸縮ホース17は、ベロー11がその軸方向
に伸長又は縮小することによる変動を、自体の軸方向に
おける伸縮によって吸収できるように設けられるから、
図示例の如くベロー11と同軸上に配置させるのが望ま
しいものであって、その連結は上下両側端をコンサベー
タ13の底壁13′から垂設して開口部18を形成する
短管19と、ベロー11の頂壁11′から立設して開口
部20を形成する短管21に夫々嵌着して適当なりラン
プ又はクランプと接着剤併用などによって気密に装着し
て行なわれる。In other words, the telescopic hose 17 is provided so that fluctuations caused by the extension or contraction of the bellows 11 in its axial direction can be absorbed by its own axial extension or contraction.
It is preferable to arrange it coaxially with the bellows 11 as shown in the figure, and its connection is with a short pipe 19 whose upper and lower ends are suspended from the bottom wall 13' of the conservator 13 to form the opening 18. , they are fitted onto short tubes 21 which stand up from the top wall 11' of the bellows 11 and form an opening 20, and are airtightly mounted using a suitable lamp or clamp in combination with an adhesive.
そして又ベロー11と、伸縮ホース17は、夫々それら
の上下両側端に当て板22.22’、23.23’を介
在して、該当て板22.22’又は23.23’を夫々
シツピングポル) 24.25止めして、ベロー11.
伸縮ホース17の伸縮変動を抑えておき、このような状
態で前記絶縁油Oのエレファント室2への真空注油作業
は行われる。Furthermore, the bellows 11 and the telescopic hose 17 are provided with backing plates 22.22' and 23.23' on both upper and lower ends of the bellows 11 and the telescopic hose 17, respectively. 24.25 Stop and bellow 11.
The vacuum lubricating operation of the insulating oil O into the elephant chamber 2 is performed in such a state while suppressing the expansion and contraction fluctuations of the extensible hose 17.
而して上記構成において、変圧器運転時は、シツピング
ポル) 24.25を取り外し、ベロー11及び伸縮ホ
ース17が自由に伸縮できる状態とするものであり、こ
のような状態で通常の温度変化による充填油の膨張、・
伸縮は、ベロー11の上部における開口部20、伸縮ホ
ース17、開口部18を通り、コンサベータ13とエレ
ファント室2内へ充填油Oが流通することでコンサベー
タ13の隔膜14が応動して行われる。In the above configuration, when the transformer is in operation, the shipping poles 24 and 25 are removed, and the bellows 11 and the telescopic hose 17 are allowed to freely expand and contract. Expansion of oil,
Expansion and contraction are carried out by the diaphragm 14 of the conservator 13 responding as the filling oil O flows into the conservator 13 and the elephant chamber 2 through the opening 20, the telescopic hose 17, and the opening 18 in the upper part of the bellows 11. be exposed.
膨張装置は通常上述のように動作するが、一旦エレフア
ント室2内で短絡などの事故が発生するとミ熱膨張によ
り急激にエレファント室2内の圧力は上昇するから、こ
の時は上述動作によって圧力を吸収し得なくなり従って
このような時は、ベロー11が軸方向に伸長し、このこ
とにおいて、ベロー11と同軸上に連結した伸縮ホース
17は軸方向に縮小して圧力を吸収し、圧力上昇率を下
げるのである。The expansion device normally operates as described above, but once an accident such as a short circuit occurs within the elephant chamber 2, the pressure within the elephant chamber 2 will rise rapidly due to thermal expansion. Therefore, in such a case, the bellows 11 expands in the axial direction, and as a result, the telescopic hose 17 coaxially connected to the bellows 11 contracts in the axial direction to absorb the pressure, and the rate of pressure increase decreases. It lowers the
勿論圧力が低下した時は、ベロー11が縮小するから、
その動作に伸縮ホース17は応動して伸長する。Of course, when the pressure decreases, the bellows 11 contracts, so
The telescopic hose 17 expands in response to this action.
尚第2図において26は放圧弁を示している。In FIG. 2, 26 indicates a pressure relief valve.
以上説明したように本考案の膨張装置によれば、エレフ
ァント室2に連設した圧力吸収用のベロー11とコンサ
ベータ13とを伸縮ホース17で連通連結してなるから
、エレファント室2内での事故による急激は圧力上昇に
よってベロー11が伸長変動し、その伸長変動を伸縮ホ
ース17が吸収し、エレファント室総体としての容積膨
張量を大きくして圧力の緩和を計ることができるから、
急激な圧力上昇率を顕著に下げることができ、従ってエ
レファント室の破壊圧力に至達する前に予めしゃ断器が
動作するよう設定しておくことによって、急激な圧力上
昇によるタンク破壊を未然に防ぐことができると共に、
火災や放圧弁以外からの噴油をも防止することができる
。As explained above, according to the expansion device of the present invention, the bellows 11 for pressure absorption and the conservator 13 connected to the elephant chamber 2 are connected to each other by the telescopic hose 17. In the event of a sudden accident, the bellows 11 expands and fluctuates due to a rise in pressure, and the expansion hose 17 absorbs the expansion fluctuation, increasing the amount of volumetric expansion of the elephant chamber as a whole to alleviate the pressure.
The rate of rapid pressure rise can be significantly reduced, and tank destruction due to sudden pressure rise can be prevented by setting the breaker to operate before the elephant chamber reaches its burst pressure. Along with being able to
Fires and oil injection from sources other than the pressure relief valve can also be prevented.
更に構造簡易であり、従来装置に僅かな機能を付加する
だけでよいから安価であるなど実用上の効果甚大である
。Furthermore, it has a simple structure and is inexpensive because only a few functions need to be added to the conventional device, which has great practical effects.
第1図は本考案に係る変圧器・膨張装置の実施例を示し
た平面図、第2図は同膨張装置の縦断側面図である。
2・・・・・・エレファント室、3・・・・・・変圧器
タンク、11・・・・・・ベロー、13・・・・・・コ
ンサベータ、17・・・・・・伸縮ホース。FIG. 1 is a plan view showing an embodiment of the transformer/expansion device according to the present invention, and FIG. 2 is a longitudinal sectional side view of the same expansion device. 2... Elephant room, 3... Transformer tank, 11... Bellow, 13... Conservator, 17... Telescopic hose.
Claims (1)
通して連設し、該ベローと前記変圧器タンクに連設され
たコンサベータとを伸縮ホースで連通して連結したこと
を特徴とする変圧器の膨張装置。A transformer characterized in that a bellow is connected to and connected to an elephant chamber connected to a transformer tank, and the bellows and a conservator connected to the transformer tank are connected by communicating with an elastic hose. Vessel expansion device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3446578U JPS582028Y2 (en) | 1978-03-16 | 1978-03-16 | transformer expansion device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3446578U JPS582028Y2 (en) | 1978-03-16 | 1978-03-16 | transformer expansion device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54136516U JPS54136516U (en) | 1979-09-21 |
JPS582028Y2 true JPS582028Y2 (en) | 1983-01-13 |
Family
ID=28891885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3446578U Expired JPS582028Y2 (en) | 1978-03-16 | 1978-03-16 | transformer expansion device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS582028Y2 (en) |
-
1978
- 1978-03-16 JP JP3446578U patent/JPS582028Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS54136516U (en) | 1979-09-21 |
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