JPH08181020A - Oil transformer with conservator - Google Patents
Oil transformer with conservatorInfo
- Publication number
- JPH08181020A JPH08181020A JP6336290A JP33629094A JPH08181020A JP H08181020 A JPH08181020 A JP H08181020A JP 6336290 A JP6336290 A JP 6336290A JP 33629094 A JP33629094 A JP 33629094A JP H08181020 A JPH08181020 A JP H08181020A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- conservator
- oil
- insulating oil
- cooler
- 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.)
- Pending
Links
Landscapes
- Transformer Cooling (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コンサベータ付油入変
圧器の改良に係わり、その目的とするところはコンサベ
ータ付の油入自冷式変圧器において、変圧器タンク内の
絶縁油をコンサベータを経て再びタンク内に良好に循環
させ、タンク内の絶縁油をコンサベータを利用して冷却
効率を高めることにより、冷却器を小形・軽量に製作可
能とした改良されたコンサベータ付油入変圧器に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of an oil-filled transformer with a conservator, and its object is to improve the insulation oil in a transformer tank in an oil-filled self-cooling transformer with a conservator. An improved oil with a conservator that allows the cooler to be made smaller and lighter by allowing the insulating oil in the tank to circulate well again through the conservator and using the conservator to increase the cooling efficiency. Regarding input transformer.
【０００２】[0002]
【従来の技術】図５は従来のコンサベータ付油入自冷式
変圧器（以下、油入変圧器という）１の概略構成図を示
すもので、油入変圧器１は鉄心２に巻線２ａを巻装して
構成した変圧器本体３と、この変圧器本体３を絶縁油と
とも収納したタンク４と、該タンク４の側方に、その内
部と上，下部の油導管５，６を介して連通可能に取付け
た冷却器７と、更に、タンク４の上方に連通管８を介し
て取付けた、前記タンク４内の絶縁油の膨張作用を良好
に吸収緩和させるコンサベータ９とによって概略構成さ
れている。そして、油入変圧器１の運転中、変圧器本体
３によって加熱された絶縁油は、タンク４から上部油導
管５を経て冷却器７に流入し、該冷却器７内を順次降下
することにより冷却され、下部油導管６から再びタンク
４内に流入して変圧器本体３の冷却に供していた。2. Description of the Related Art FIG. 5 is a schematic block diagram of a conventional oil-filled self-cooling transformer with a conservator (hereinafter referred to as an oil-filled transformer) 1. The oil-filled transformer 1 is wound around an iron core 2. 2a is wound around the transformer main body 3, a tank 4 containing the transformer main body 3 together with insulating oil, and oil tanks 5 and 6 inside and above and below the tank 4. And a conservator 9 installed above the tank 4 via a communication pipe 8 for absorbing and relaxing the expansion action of the insulating oil in the tank 4 favorably. It is roughly configured. Then, during the operation of the oil-filled transformer 1, the insulating oil heated by the transformer main body 3 flows into the cooler 7 from the tank 4 through the upper oil conduit 5, and then descends in the cooler 7 sequentially. After being cooled, it flows into the tank 4 again from the lower oil conduit 6 and is used for cooling the transformer body 3.
【０００３】[0003]
【発明が解決しようとする課題】然るに、前記構成の油
入変圧器１においては、タンク４内の絶縁油が変圧器本
体３の運転により加熱されると、タンク４内の上方から
上部油導管５を通って冷却器７に流入して冷却され、冷
却後は下部油導管６を経てタンク４内に流入して変圧器
本体３の冷却を行っていた。そして、変圧器本体３がそ
の運転中に設定温度以上に温度が上昇するのを防ぐため
には、加熱された絶縁油を迅速に冷却してタンク内に供
給しないと、変圧器本体３を設定温度以下に維持するこ
とが難しく、これができない場合、油入変圧器１の運転
に重大な支障をきたすおそれがあった。このため、従来
から上記の点を考慮して加熱された絶縁油の迅速な冷却
を促進するうえから、油入変圧器１に付設する冷却器７
は、絶縁油の冷却効率を考慮してある程度大形化する傾
向にあった。However, in the oil-filled transformer 1 having the above-mentioned structure, when the insulating oil in the tank 4 is heated by the operation of the transformer body 3, the upper oil conduit is fed from above the tank 4. After passing through 5, the cooling body 7 is cooled and then cooled, and after cooling, flows into the tank 4 through the lower oil conduit 6 to cool the transformer body 3. In order to prevent the temperature of the transformer body 3 from rising above the set temperature during its operation, the heated insulating oil must be cooled rapidly and supplied into the tank before the transformer body 3 reaches the set temperature. It is difficult to maintain the following, and if this is not possible, there is a risk that the operation of the oil-filled transformer 1 may be seriously hindered. For this reason, in order to accelerate the rapid cooling of the insulating oil that has been conventionally heated in consideration of the above points, the cooler 7 attached to the oil-filled transformer 1 is used.
Has a tendency to increase in size to some extent in consideration of the cooling efficiency of insulating oil.
【０００４】しかし、前記の場合、冷却器７を大形化す
ることは、油入変圧器１自体の大形化につながるととも
に、据付面積が必然的に増大する。この結果、油入変圧
器１の製造、据付には必要以上にコストがかかり、しか
も、重量がかさむことにより、前記製造、据付に多大な
手間と労力を必要とする問題があった。その上、油入変
圧器１の上部に取付けたコンサベータ９は、タンク４に
対して連通管８を介して連通しているだけであるため、
タンク４内の絶縁油がコンサベータ９内を循環すること
は全くなく、単に絶縁油の膨張を吸収するのみで絶縁油
の冷却に寄与させることは不可能であった。即ち、１台
の油入変圧器１に使用する絶縁油量の約１０％の絶縁油
が充填されているコンサベータ９の表面は、絶縁油の冷
却に全く寄与することがないので、コンサベータ９は本
来の活用以外に利用することができないという問題もあ
った。However, in the above case, increasing the size of the cooler 7 leads to increasing the size of the oil-filled transformer 1 itself, and inevitably increases the installation area. As a result, the production and installation of the oil-filled transformer 1 are unnecessarily costly, and the weight is heavy, so that there is a problem that a great deal of time and labor is required for the production and installation. Moreover, since the conservator 9 attached to the upper part of the oil-filled transformer 1 only communicates with the tank 4 through the communication pipe 8,
The insulating oil in the tank 4 never circulated in the conservator 9, and it was impossible to contribute to the cooling of the insulating oil by merely absorbing the expansion of the insulating oil. That is, the surface of the conservator 9 filled with about 10% of the amount of insulating oil used for one oil-filled transformer 1 does not contribute to the cooling of the insulating oil at all, so that the conservator is not cooled. There was also a problem that 9 could not be used for anything other than its original use.
【０００５】本発明は、前記の問題に鑑み、油入変圧器
の上部に取付けたコンサベータを絶縁油の冷却作用に活
用することにより、絶縁油の冷却効率を向上させて、油
入変圧器の冷却器を小形・軽量に製作可能とした改良さ
れたコンサベータ付油入変圧器を提供することにある。In view of the above problems, the present invention improves the cooling efficiency of the insulating oil by utilizing the conservator attached to the upper part of the oil-filled transformer for the cooling action of the insulating oil, and improves the cooling efficiency of the insulating oil. Is to provide an improved oil-immersed transformer with a conservator that enables the manufacturing of a small-sized and lightweight refrigerator.
【０００６】[0006]
【課題を解決するための手段】本発明は、油入変圧器の
タンクとその上部に付設したコンサベータ、あるいは、
コンサベータと冷却器とにそれぞれ絶縁油を循環・通流
させる通流管を配管接続し、タンク内の加熱された絶縁
油の一部をコンサベータ内を通流させてタンク内に循環
させるように構成したことを特徴とする。The present invention is directed to a tank of an oil-filled transformer and a conservator attached to the upper part of the tank, or
Flow pipes for circulating and circulating insulating oil are respectively connected to the conservator and the cooler, so that part of the heated insulating oil in the tank is made to flow in the conservator and circulated in the tank. It is characterized in that it is configured in.
【０００７】[0007]
【作用】本発明は、油入変圧器のタンクとコンサベー
タ、あるいはコンサベータと冷却器とをそれぞれ通流管
によって連結し、タンク内の絶縁油の一部を直接コンサ
ベータ内を循環させて、直接タンク内、あるいは、冷却
器を介してタンク内に再流入させるように構成したの
で、絶縁油は冷却器はもとより、コンサベータ内を流通
してタンク内に流入するため、油入変圧器の運転によっ
て加熱された絶縁油は、冷却器とコンサベータとを利用
して良好に冷却することができるので、絶縁油の冷却、
即ち、タンク内上部の加熱された絶縁油を効率よくタン
ク内から引出して冷却することができるため、油入変圧
器の冷却器を小形・軽量に製作できる利点がある。According to the present invention, the tank of the oil-filled transformer and the conservator, or the conservator and the cooler are respectively connected by flow pipes, and a part of the insulating oil in the tank is directly circulated in the conservator. Since it is configured to re-inject directly into the tank or through the cooler into the tank, the insulating oil flows not only in the cooler but also in the conservator and flows into the tank. Since the insulating oil heated by the operation of can be satisfactorily cooled by utilizing the cooler and the conservator, cooling of the insulating oil,
That is, since the heated insulating oil in the upper part of the tank can be efficiently drawn out from the tank and cooled, there is an advantage that the cooler of the oil-filled transformer can be made small and lightweight.
【０００８】[0008]
【実施例】以下、本発明の実施例を図１，２によって説
明する。図１において、１１は油入自冷式の変圧器（以
下、変圧器という）を示し、１２は前記変圧器１１のタ
ンクで、内部には鉄心１３に巻線１４を巻装して構成し
た変圧器本体１５が、絶縁油１６とともに収納設置され
ている。１７，１７ａは、変圧器１１のタンク１２周壁
に周設した中空状の補強梁、１８はタンク１２の側壁
に、該タンク１２内と連通する上部及び下部油導管１
９，２０を介して取付けた冷却器、２１はタンク１２内
の絶縁油１６が膨張したときこれを吸収するためのコン
サベータを示し、ゴム製の隔膜２１ａ等により絶縁油室
と窒素ガス等の気体室との２室に区画して、タンク１２
上方に、タンク１２内と連通する連通管２２を介して取
付けられている。２３はコンサベータ２１の取付脚であ
る。Embodiments of the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 11 denotes an oil-filled self-cooling type transformer (hereinafter referred to as a transformer), 12 is a tank of the transformer 11, which is constructed by winding a winding 14 around an iron core 13 inside. The transformer main body 15 is housed and installed together with the insulating oil 16. Reference numerals 17 and 17a denote hollow reinforcing beams that are provided around the peripheral wall of the tank 12 of the transformer 11, and 18 denotes a side wall of the tank 12, and upper and lower oil conduits 1 communicating with the inside of the tank 12.
A cooler 21 attached via 9, 20 is a conservator for absorbing the insulating oil 16 in the tank 12 when it expands. The insulating oil chamber and nitrogen gas are protected by the rubber diaphragm 21a. The tank 12 is divided into two chambers including a gas chamber.
It is attached above via a communication pipe 22 that communicates with the inside of the tank 12. Reference numeral 23 is a mounting leg of the conservator 21.
【０００９】次に、前記コンサベータ２１には、更に、
図１，２で示すように、コンサベータ２１の中腹側と、
タンク１２に周設した補強梁１７，１７ａのうち、タン
ク１２上部側に位置する補強梁１７との間において、絶
縁油１６が通流する通流管２４が、前記コンサベータ２
１とタンク１２内とを連通させるが如く配管接続されて
いる。そして、通流管２４の絶縁油１６をタンク１２内
に流出させる流出口２４ａの位置は、図１で示すよう
に、タンク１２上部側の補強梁１７を介して巻線１４の
上方端と対応する位置で開口されている。又、前記通流
管２４と連通する補強梁１７は、その内部が全周にわた
りタンク１２内と直接連通させてあり、かつ、図１の左
側に示す通流管２４側にはタンク１２側壁に開口されて
絶縁油をタンク１２内に流入させる流通口Ｄ2 が、図１
で示す右側のタンク１２側壁に開口した流通口Ｄ1 に対
してその開口面積が２Ｄ2 ＝Ｄ1 となるように形成され
ている。更に、前記補強梁１７は絶縁油１６が外部に漏
出しないように、タンク１２の周壁に気密に取付けられ
ており、かつ、前記流通口Ｄ1 ，Ｄ2 は、図２で示すタ
ンク１２の左右方向に位置する補強梁１７と対応する側
壁には形成されていない。Next, the conservator 21 is further provided with
As shown in FIGS. 1 and 2, on the medial side of the conservator 21,
Among the reinforcing beams 17 and 17a provided around the tank 12, the flow pipe 24 through which the insulating oil 16 flows is provided between the reinforcing beam 17 and the reinforcing beam 17 located on the upper side of the tank 12.
1 is connected to the inside of the tank 12 by piping. The position of the outlet 24a through which the insulating oil 16 of the flow pipe 24 flows into the tank 12 corresponds to the upper end of the winding 14 via the reinforcing beam 17 on the upper side of the tank 12, as shown in FIG. It is opened at the position where Further, the reinforcing beam 17 communicating with the flow pipe 24 is directly communicated with the inside of the tank 12 over the entire circumference, and the side wall of the tank 12 is provided on the flow pipe 24 side shown on the left side of FIG. The flow port D 2 that is opened to allow the insulating oil to flow into the tank 12 is shown in FIG.
The opening area is 2D 2 = D 1 with respect to the flow port D 1 opened on the side wall of the tank 12 on the right side. Further, the reinforcing beam 17 is airtightly attached to the peripheral wall of the tank 12 so that the insulating oil 16 does not leak outside, and the circulation ports D 1 and D 2 are provided on the left and right sides of the tank 12 shown in FIG. It is not formed on the side wall corresponding to the reinforcing beam 17 positioned in the direction.
【００１０】なお、前記補強梁１７はタンク１２内と連
通する流通口Ｄ1 ，Ｄ2 の各開口面積を変えることな
く、全周にわたり同一開口面積で形成したり、あるい
は、逆に、補強梁１７をタンク１２の周壁に油密に配設
し、タンク１２周壁には変圧器本体１５の巻線１４の上
端面と対応する部位に図示しない貫通口を開口し、この
貫通口を通じてコンサベータ２１内から流下する絶縁油
１６をタンク１２内に流通させるようにしてもよい。The reinforcing beam 17 can be formed with the same opening area over the entire circumference without changing the opening areas of the flow ports D 1 and D 2 communicating with the inside of the tank 12, or conversely, the reinforcing beam can be formed. 17 is oil-tightly arranged on the peripheral wall of the tank 12, and a through hole (not shown) is opened in the peripheral wall of the tank 12 at a portion corresponding to the upper end surface of the winding 14 of the transformer body 15, and the conservator 21 is opened through this through hole. The insulating oil 16 flowing down from the inside may be circulated in the tank 12.
【００１１】次に、前記の構成において、変圧器１１の
運転開始に伴い変圧器本体１５の熱を奪って加熱された
タンク１２内の絶縁油１６は、タンク１２内を対流して
その上方に上昇し、その一部は上部油導管１９を通って
冷却器１８内に流入する。又、タンク１２内の最上部に
滞留する残りの加熱された絶縁油１６は、絶縁油１６の
タンク１２内における対流の促進作用によって順次連結
管２２内に押し上げられてコンサベータ２１内に流入す
る。このように、本発明においてはタンク１２内で加熱
された絶縁油１６は冷却器１８及びコンサベータ２１内
にそれぞれ流入する。Next, in the above-mentioned structure, the insulating oil 16 in the tank 12 that has been heated by removing the heat of the transformer main body 15 when the operation of the transformer 11 is started convects in the tank 12 and goes above it. Ascend, part of which flows into the cooler 18 through the upper oil conduit 19. Further, the remaining heated insulating oil 16 staying at the uppermost portion in the tank 12 is sequentially pushed up into the connecting pipe 22 by the action of promoting the convection of the insulating oil 16 in the tank 12 and flows into the conservator 21. . As described above, in the present invention, the insulating oil 16 heated in the tank 12 flows into the cooler 18 and the conservator 21, respectively.
【００１２】そして、前記上部油導管１９を経て冷却器
１８内に流入した絶縁油１６は冷却器１８内を流下する
に従って冷却され、下部油導管２０を通ってタンク１２
の下側から再びタンク１２内に流入し変圧器本体１５の
冷却に供する。一方、タンク１２内の上部から連結管２
２内に押し上げられてコンサベータ２１内に流入した絶
縁油１６は、図１で示すように、その流入量分に相当す
るコンサベータ２１内の冷却された絶縁油１６を通流管
２４内に流下させ、タンク１２に設けた上部側の中空状
の補強梁１７内を経てタンク１２に還流させる。この
際、通流管２４の流出口２４ａは変圧器本体１５の巻線
１４の上方端と同一位置となるように開口されているた
め、通流管２４からタンク１２内に流入する絶縁油１６
は、コンサベータ２１内で冷却された状態で、前記流出
口２４ａからタンク１２側壁の巻線１４上部位置に開口
する流通口Ｄ1 ，Ｄ2 を通って、巻線１４の上部に、そ
の冷却に有効に寄与させることができるように流入する
ため、巻線１４の上部を効率よく冷却することができ
る。又、前記流通口Ｄ1 ，Ｄ2 の開口面積が２Ｄ2 ＝Ｄ
1 となるように形成されているので、巻線１４の上部は
通流管２４から遠ざかる位置においても、流通管２４に
近い巻線１４上部と同様に均一に冷却することができ
る。The insulating oil 16 flowing into the cooler 18 through the upper oil conduit 19 is cooled as it flows down in the cooler 18, and passes through the lower oil conduit 20 to reach the tank 12.
It flows into the tank 12 again from the lower side and is used for cooling the transformer main body 15. On the other hand, from the upper part of the tank 12 to the connecting pipe 2
As shown in FIG. 1, the insulating oil 16 that has been pushed up into the inside of the conservator 21 and has flowed into the conservator 21 flows into the flow pipe 24 through the cooled insulating oil 16 in the conservator 21 corresponding to the amount of inflow. It is made to flow down, and is made to flow back to the tank 12 through the hollow reinforcing beam 17 on the upper side provided in the tank 12. At this time, since the outlet 24 a of the flow pipe 24 is opened at the same position as the upper end of the winding 14 of the transformer body 15, the insulating oil 16 flowing from the flow pipe 24 into the tank 12 is discharged.
Is cooled in the conservator 21, passes through the flow ports D 1 and D 2 opening from the outlet 24 a to the upper position of the winding 14 on the side wall of the tank 12, and cools the cooling to the upper portion of the winding 14. In order to effectively contribute to the above, the upper portion of the winding 14 can be efficiently cooled. Further, the opening area of the circulation ports D 1 and D 2 is 2D 2 = D
Since it is formed so as to be 1 , the upper portion of the winding wire 14 can be cooled uniformly even at a position away from the flow pipe 24, similarly to the upper portion of the winding wire 14 near the flow pipe 24.
【００１３】このように、本発明は変圧器１１の運転に
よって加熱された絶縁油１６を冷却器１８とコンサベー
タ２１とに分流させて効果的に冷却して、変圧器１１の
冷却に利用しているので、タンク１２内の絶縁油１６は
設定温度以上に加熱されることが少なく、この結果、稼
働中の変圧器１１を効率よく冷却することができる。
又、冷却器１８内に流入した絶縁油１６は、コンサベー
タ２１から流入する絶縁油１６とタンク１２内の巻線１
４上部の位置で混合されることが多いため、その加熱温
度は余り高くなく冷却器１８内において良好に、かつ、
迅速に冷却することができる。As described above, according to the present invention, the insulating oil 16 heated by the operation of the transformer 11 is diverted to the cooler 18 and the conservator 21 to effectively cool the insulating oil 16 and use it for cooling the transformer 11. Therefore, the insulating oil 16 in the tank 12 is rarely heated to a temperature equal to or higher than the set temperature, and as a result, the transformer 11 in operation can be efficiently cooled.
Further, the insulating oil 16 flowing into the cooler 18 is the insulating oil 16 flowing from the conservator 21 and the winding 1 in the tank 12.
4 is often mixed in the upper position, so that the heating temperature is not so high and is good in the cooler 18, and
Can be cooled quickly.
【００１４】一方、コンサベータ２１内に滞留している
絶縁油１６の温度を測定すると、タンク１２内の上部に
滞留する加熱された絶縁油１６の温度に比べて約１／４
と低く、この結果、コンサベータ２１内に流入した加熱
された絶縁油１６は、コンサベータ２１内の低温な絶縁
油１６と混合され迅速に温度を降下させて通流管２４か
らタンク１２内に還流させることが可能になるととも
に、絶縁油１６がコンサベータ２１内に滞留していると
きは、コンサベータ２１がタンク１２と離れた位置で連
結されていることと相まって、大気との接触面積を広く
とることが可能となるため、変圧器１１に使用する絶縁
油１６の約１０％を占めるコンサベータ２１内の絶縁油
１６は、迅速にその温度を降下させることができる。On the other hand, when the temperature of the insulating oil 16 staying in the conservator 21 is measured, it is about 1/4 of the temperature of the heated insulating oil 16 staying in the upper part of the tank 12.
As a result, the heated insulating oil 16 that has flowed into the conservator 21 is mixed with the low-temperature insulating oil 16 in the conservator 21 to rapidly lower the temperature and flow into the tank 12 from the flow pipe 24. It becomes possible to recirculate, and when the insulating oil 16 stays in the conservator 21, coupled with the fact that the conservator 21 is connected to the tank 12 at a position apart from each other, the contact area with the atmosphere can be increased. Since it can be widely used, the temperature of the insulating oil 16 in the conservator 21, which accounts for about 10% of the insulating oil 16 used for the transformer 11, can be rapidly lowered.
【００１５】次に、図３は本発明の他の実施例を示すも
ので、前記のように、通流管２４をタンク１２とコンサ
ベータ２１との間に配管する代りに、コンサベータ２１
と冷却器（上部油導管１９）１８との間に通流管２４を
配管（通流管２４はその流出口２４ｂを図４のように上
部油導管１９内でＬ字状に折曲して配管する）し、タン
ク１２内で変圧器１１の運転によって加熱された絶縁油
１６を冷却器１８に通流させて冷却する際、即ち、図４
に示すように、上部油導管１９内を通流する加熱された
絶縁油１６の流速によって通流管２４の流出口２４ｂが
負圧となるため、コンサベータ２１内の冷却された絶縁
油１６は通流管２４内を流下して上部油導管１９に流入
し、タンク１２内から流入する加熱された絶縁油１６と
混合されて冷却器１８内に流入する。一方、コンサベー
タ２１内にはタンク１２内上部に滞留している加熱され
た絶縁油１６が順次流入し、コンサベータ２１内の低温
な絶縁油１６と混合されて油温を降下させた状態で通流
管２４を介して冷却器１８に給送される。Next, FIG. 3 shows another embodiment of the present invention. As described above, instead of connecting the flow pipe 24 between the tank 12 and the conservator 21, as shown in FIG.
A flow pipe 24 between the cooling device and the cooler (upper oil conduit 19) 18 (the flow pipe 24 has its outlet 24b bent into an L shape in the upper oil conduit 19 as shown in FIG. 4). 4), and when the insulating oil 16 heated by the operation of the transformer 11 in the tank 12 is passed through the cooler 18 for cooling, that is, in FIG.
As shown in, the flow velocity of the heated insulating oil 16 flowing in the upper oil conduit 19 causes the outlet 24b of the flow pipe 24 to have a negative pressure, so that the cooled insulating oil 16 in the conservator 21 is It flows down through the flow pipe 24, flows into the upper oil conduit 19, is mixed with the heated insulating oil 16 flowing from inside the tank 12, and flows into the cooler 18. On the other hand, the heated insulating oil 16 accumulated in the upper part of the tank 12 sequentially flows into the conservator 21 and is mixed with the low temperature insulating oil 16 in the conservator 21 to lower the oil temperature. It is fed to the cooler 18 via the flow pipe 24.
【００１６】冷却器１８に流入した絶縁油１６は適温に
冷却され、下部油導管２０からタンク１２内に流入して
変圧器本体１５の冷却を行う。図３に示す他の実施例に
おいても、コンサベータ２１を介してタンク１２と冷却
器１８とが相互に連通する構造となっているため、タン
ク１２内の加熱された絶縁油１６は、冷却器１８とコン
サベータ２１とに分流させて冷却することができるの
で、タンク１２内の絶縁油１６の冷却を良好に行うこと
が可能となり、油入変圧器１１は常に所定の設定温度で
使用することができる。その上、コンサベータ２１が絶
縁油１６の冷却に供することができるため、冷却器１８
の小形，軽量化を良好にはかることができる。The insulating oil 16 that has flowed into the cooler 18 is cooled to an appropriate temperature and flows into the tank 12 from the lower oil conduit 20 to cool the transformer body 15. Also in the other embodiment shown in FIG. 3, since the tank 12 and the cooler 18 communicate with each other through the conservator 21, the heated insulating oil 16 in the tank 12 is cooled by the cooler. 18 and the conservator 21 can be branched and cooled, so that the insulating oil 16 in the tank 12 can be cooled well, and the oil-filled transformer 11 should always be used at a predetermined set temperature. You can Moreover, since the conservator 21 can be used for cooling the insulating oil 16, the cooler 18
The size and weight of can be reduced.
【００１７】[0017]
【発明の効果】本発明は、以上説明したように、変圧器
のタンク内とコンサベータ、あるいは、コンサベータと
冷却器との間を通流管によって接続し、コンサベータ内
の絶縁油を、タンク内の絶縁油と交流させて通流するよ
うに構成したので、タンク内の絶縁油は、冷却器の他に
コンサベータ内を通流させて冷却することができるた
め、変圧器の運転によって高温に加熱された絶縁油を効
果的に冷却して変圧器の冷却に供することができるの
で、変圧器を効率的に冷却することができる。INDUSTRIAL APPLICABILITY As described above, the present invention connects the inside of the transformer tank and the conservator, or between the conservator and the cooler by a flow pipe to remove the insulating oil in the conservator. Since it is configured to flow through by alternating with the insulating oil in the tank, the insulating oil in the tank can be cooled by flowing in the conservator in addition to the cooler. Since the insulating oil heated to high temperature can be effectively cooled and used for cooling the transformer, the transformer can be efficiently cooled.
【００１８】又、タンク内の絶縁油をコンサベータを利
用して冷却することが可能であるため、変圧器の冷却器
はその冷却能力を少なくして形成することができるの
で、小形・軽量に製作することができ、かつ、その据付
面積の縮少化をはかることができる。Further, since the insulating oil in the tank can be cooled by using the conservator, the cooler of the transformer can be formed with a reduced cooling capacity, so that it can be made compact and lightweight. It can be manufactured and the installation area can be reduced.
【００１９】更に、コンサベータとタンク内、あるい
は、コンサベータと冷却器とが通流管によって直接連通
させてあるので、タンク内の絶縁油は冷却器とコンサベ
ータとに分流して冷却することができるため、絶縁油の
冷却が効率的に行えるとともに、コンサベータ内の冷却
された絶縁油をタンク内の巻線上部に直接流出させるこ
とができるので、巻線の上部をタンク内において効果的
に冷却させることができる。Further, since the conservator and the tank, or the conservator and the cooler are directly communicated with each other by a flow pipe, the insulating oil in the tank is divided into the cooler and the conservator for cooling. Since the insulating oil can be cooled efficiently, the cooled insulating oil in the conservator can directly flow out to the upper part of the winding in the tank, so the upper part of the winding is effective in the tank. Can be cooled.
【図１】本発明のコンサベータ付油入変圧器の要部を縦
断して示す正面図である。FIG. 1 is a front view showing a longitudinal section of a main part of an oil-filled transformer with a conservator according to the present invention.
【図２】同じく側面図である。FIG. 2 is a side view of the same.
【図３】本発明の他の実施例を示すコンサベータ付油入
変圧器の縦断面図である。FIG. 3 is a vertical sectional view of an oil-filled transformer with a conservator according to another embodiment of the present invention.
【図４】図３のＰ部分の拡大断面図である。FIG. 4 is an enlarged sectional view of a portion P of FIG.
【図５】従来のコンサベータ付油入変圧器を示す正面図
である。FIG. 5 is a front view showing a conventional oil-filled transformer with a conservator.
１１ 油入自冷式変圧器 １２ タンク １５ 変圧器本体 １６ 絶縁油 １７ 補強梁 １９，２０ 油導管 ２１ コンサベータ ２４ 通流管 ２４ａ 流出口 Ｄ1 ，Ｄ2 流通口11 oil-filled self cooling transformer 12 tank 15 transformer body 16 insulating oil 17 reinforcing beams 19, 20 an oil conduit 21 conservator 24 copies flow tube 24a outlet D 1, D 2 flow port
Claims (3)
タンクの側方に、冷却器を油導管を介してタンク内と連
通可能に取付け、タンクの上方にはタンク内の絶縁油の
膨張を吸収するコンサベータを連結管を介して具備した
油入変圧器において、前記変圧器本体を収納したタンク
とコンサベータ、あるいは、コンサベータと冷却器とを
タンク内の絶縁油を通流させる通流管によって配管接続
し、タンク内の絶縁油をコンサベータを介してタンク内
に循環させるようにしたことを特徴とするコンサベータ
付油入変圧器。1. A cooler is attached to the side of a tank containing a transformer body and insulating oil so as to be able to communicate with the inside of the tank via an oil conduit, and the insulating oil in the tank is installed above the tank. In an oil-filled transformer equipped with a conservator that absorbs expansion through a connecting pipe, a tank accommodating the transformer main body and a conservator, or a conservator and a cooler are made to flow insulating oil in the tank. An oil-filled transformer with a conservator, characterized in that the insulating oil in the tank is circulated in the tank through a conservator by connecting piping through a flow pipe.
周壁に設けた補強梁との間に、コンサベータ内の絶縁油
をタンク内の巻線上部に流入させるようにして配管接続
したことを特徴とする請求項１記載のコンサベータ付油
入変圧器。2. The flow pipe is connected between the conservator and a reinforcing beam provided on the peripheral wall of the tank so that the insulating oil in the conservator flows into the upper part of the winding in the tank. The oil-filled transformer with a conservator according to claim 1.
上部油導管との間に、流出口を有する一方端を冷却器側
に曲成して上部油導管内に挿入した状態で配管接続した
ことを特徴とする請求項１記載のコンサベータ付油入変
圧器。3. The flow pipe is a pipe in which one end having an outflow port is bent to the cooler side between the conservator and the upper oil conduit of the cooler and inserted into the upper oil conduit. The oil-filled transformer with a conservator according to claim 1, which is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6336290A JPH08181020A (en) | 1994-12-22 | 1994-12-22 | Oil transformer with conservator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6336290A JPH08181020A (en) | 1994-12-22 | 1994-12-22 | Oil transformer with conservator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08181020A true JPH08181020A (en) | 1996-07-12 |
Family
ID=18297580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6336290A Pending JPH08181020A (en) | 1994-12-22 | 1994-12-22 | Oil transformer with conservator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08181020A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824681A (en) * | 2014-03-10 | 2014-05-28 | 山东达驰电气有限公司 | Oil conservator capable of radiating |
| JP2015165553A (en) * | 2014-02-06 | 2015-09-17 | 三菱電機株式会社 | Diagnostic method of oil-filled electric equipment, diagnostic device of oil-filled electric equipment and oil-filled electric equipment including the same |
| CN105047372A (en) * | 2015-08-25 | 2015-11-11 | 重庆民生变压器有限责任公司 | Forced accelerated circulation transformer with internal isolation channels |
| CN105047374A (en) * | 2015-08-25 | 2015-11-11 | 重庆民生变压器有限责任公司 | Helical tube high-elevation cycle cooling transformer |
| CN113299460A (en) * | 2021-05-18 | 2021-08-24 | 黄秀芹 | Energy-saving and environment-friendly oil-immersed high-speed rail autotransformer |
| CN115172016A (en) * | 2022-07-06 | 2022-10-11 | 南通兴安源金属制品有限公司 | Transformer oil tank with leak protection is handled |
| CN117239590A (en) * | 2023-08-31 | 2023-12-15 | 广东科源电气股份有限公司 | Built-in box transformer of fan tower section of thick bamboo |
-
1994
- 1994-12-22 JP JP6336290A patent/JPH08181020A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015165553A (en) * | 2014-02-06 | 2015-09-17 | 三菱電機株式会社 | Diagnostic method of oil-filled electric equipment, diagnostic device of oil-filled electric equipment and oil-filled electric equipment including the same |
| CN103824681A (en) * | 2014-03-10 | 2014-05-28 | 山东达驰电气有限公司 | Oil conservator capable of radiating |
| CN105047372A (en) * | 2015-08-25 | 2015-11-11 | 重庆民生变压器有限责任公司 | Forced accelerated circulation transformer with internal isolation channels |
| CN105047374A (en) * | 2015-08-25 | 2015-11-11 | 重庆民生变压器有限责任公司 | Helical tube high-elevation cycle cooling transformer |
| CN113299460A (en) * | 2021-05-18 | 2021-08-24 | 黄秀芹 | Energy-saving and environment-friendly oil-immersed high-speed rail autotransformer |
| CN113299460B (en) * | 2021-05-18 | 2024-04-02 | 佛山市德富通电子有限公司 | Energy-saving environment-friendly oil-immersed high-speed rail autotransformer |
| CN115172016A (en) * | 2022-07-06 | 2022-10-11 | 南通兴安源金属制品有限公司 | Transformer oil tank with leak protection is handled |
| CN115172016B (en) * | 2022-07-06 | 2023-12-19 | 南通兴安源金属制品有限公司 | Transformer tank with leak protection is handled |
| CN117239590A (en) * | 2023-08-31 | 2023-12-15 | 广东科源电气股份有限公司 | Built-in box transformer of fan tower section of thick bamboo |
| CN117239590B (en) * | 2023-08-31 | 2024-04-05 | 广东科源电气股份有限公司 | Built-in box transformer of fan tower section of thick bamboo |
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