JPH01117006A - Stationary induction apparatus - Google Patents
Stationary induction apparatusInfo
- Publication number
- JPH01117006A JPH01117006A JP27304387A JP27304387A JPH01117006A JP H01117006 A JPH01117006 A JP H01117006A JP 27304387 A JP27304387 A JP 27304387A JP 27304387 A JP27304387 A JP 27304387A JP H01117006 A JPH01117006 A JP H01117006A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- cooling medium
- refrigerant
- cooling
- transformer
- 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
- 230000006698 induction Effects 0.000 title claims description 14
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 238000004804 winding Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002826 coolant Substances 0.000 claims description 82
- 239000003507 refrigerant Substances 0.000 abstract 11
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Transformer Cooling (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は変圧器やりアクドル等の静止誘導電器に係り、
特に静止誘導電器の本体を冷却する冷却媒体と電気絶縁
性の高い非凝縮性のガスを同一タンク内に封入した静止
誘導電器に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to stationary induction electric appliances such as transformers and accelerators.
In particular, the present invention relates to a stationary induction appliance in which a cooling medium for cooling the main body of the stationary induction appliance and a non-condensable gas with high electrical insulation are sealed in the same tank.
最近、特に都市部での電力需要の拡大と共に、人口密集
地域に大容量高電圧の変圧器を設置するケースが増えて
おり、これに伴って変圧器の小形・軽量化あるいは不燃
化、低騒音化といった都市環境に対応した新しい変圧器
等の静止誘導電器の開発が望まれていた。Recently, as the demand for electricity has expanded, especially in urban areas, the number of large-capacity, high-voltage transformers being installed in densely populated areas has increased. There was a desire to develop static induction electrical equipment such as new transformers that could be adapted to urban environments such as urbanization.
この様な要請に対応できる機器として例えば変圧器にお
いては、タンク内に電気絶縁性の高い非凝縮性のガス(
たとえばSFeガス等)を充填し、さらに変圧器巻線等
の発熱体を冷却媒体(例えば、フロロカーボン等)に侵
し、発生する熱をこの冷却媒体を介して取り除く様にし
たガス絶縁変圧器が提案されている。For example, in a transformer, a device that can meet these demands has a tank containing highly electrically insulating non-condensable gas (
A gas insulated transformer has been proposed in which the heating element such as the transformer winding is impregnated with a cooling medium (such as fluorocarbon), and the generated heat is removed through this cooling medium. has been done.
この種の静止誘導電器は発熱体への冷却媒体の接触方式
によって、(1)冷却媒体を発熱体に散布するスプレィ
方式、(2)発熱量の大きい巻線部を冷却媒体に浸すセ
ミプール方式、(3)変圧器中身全体を冷却媒体に浸す
プール方式、の3方式に別けられるが、大容量変圧器を
効率良く冷却できる点では上記(3)のプール方式が最
も優れている。しかし、この方式では高価な冷却媒体の
必要量が他に比べ多くなることから公開特許公報特開昭
58−158906号などには、これを節約する方法と
して変圧器中身とタンク間に埋め物を入れる対策などが
示されている。This type of stationary induction electric appliance has two methods for bringing the cooling medium into contact with the heating element: (1) a spray method in which the cooling medium is sprinkled on the heating element; (2) a semi-pool method in which the windings that generate a large amount of heat are immersed in the cooling medium; There are three methods: (3) a pool method in which the entire contents of the transformer are immersed in a cooling medium; however, the pool method (3) above is the best in terms of efficiently cooling a large capacity transformer. However, since this method requires a larger amount of expensive cooling medium than other methods, published patent publications such as JP-A No. 58-158906 suggest that a filling material be placed between the transformer contents and the tank as a way to save this amount. Measures to be taken are shown.
’、C,:%’明が解決しようとする問題点〕″ご
7しかし、この様な従来の技術では大容量変圧器で特に
懸念される巻線などからの漏れ磁束によるタンク壁各部
での温度上昇の防止や昇温した絶縁ガスの冷却について
配慮されたものとなっていない。',C,:%'Problem that Ming tries to solve〕''7However, with such conventional technology, leakage of magnetic flux from windings etc., which is a particular concern in large-capacity transformers, can occur at various parts of the tank wall. No consideration has been given to preventing temperature rises or cooling the insulating gas that has risen in temperature.
そこで、本発明の目的は高価な冷却媒体の量をできるだ
け低減すると共に、この冷却媒体で浸されていないタン
ク内壁や充填されている電気絶縁性のガスの効果的な冷
却も行なえるようにした冷却特性に優れた静止誘導電器
を提供することにある。Therefore, the purpose of the present invention is to reduce the amount of expensive cooling medium as much as possible, and also to effectively cool the inner wall of the tank that is not immersed in the cooling medium and the electrically insulating gas that is filled with the cooling medium. The object of the present invention is to provide a stationary induction electric appliance with excellent cooling characteristics.
上記した本発明の目的は、非凝縮性の絶縁性ガスを充填
したタンク内に変圧器の中身を浸した凝縮性の冷却媒体
槽を設け、この冷却媒体を上記槽の下部から供給し、タ
ンクカバーに近い槽の上面からあふれた冷却媒体をタン
ク内壁に沿って落下するようにし、落下してタンク底部
に溜められた冷却媒体を冷却器を介して再び冷却媒体槽
の下部から冷却媒体槽に供給するように冷却媒体のサイ
クルを構成することにより達成される。The object of the present invention described above is to provide a condensable cooling medium tank in which the contents of a transformer are immersed in a tank filled with a non-condensable insulating gas, and to supply this cooling medium from the lower part of the tank. The cooling medium overflowing from the top of the tank near the cover is made to fall along the tank inner wall, and the cooling medium that falls and is collected at the bottom of the tank is passed through the cooler and returned to the cooling medium tank from the bottom of the tank. This is achieved by configuring the cooling medium cycle to supply
又、電気絶縁性高圧ガスの冷却は冷却媒体槽の上端部か
らあふれてタンク内壁に流れる冷却媒体の一部をその途
中でシャワー状にタンク内に落下させることによって達
成される。Cooling of the electrically insulating high-pressure gas is achieved by causing a portion of the cooling medium overflowing from the upper end of the cooling medium tank and flowing to the inner wall of the tank to fall into the tank in the form of a shower.
即ち、本発明の要旨とするところは電気絶縁性高圧ガス
を充填したタンクと、タンク内に設置された冷却媒体を
収納した冷却媒体槽と、冷却媒体槽内に設置され冷却媒
体中に侵された巻線を巻いた鉄心とから成る静止誘導電
器に、冷却媒体を冷却する冷却器、冷却器によって冷却
された冷却媒体を冷却媒体槽の下部に供給する機構、冷
却媒体を冷却媒体槽に供給することによって冷却媒体槽
上端部からあふれた冷却媒体をタンクの内壁に沿って落
下するようにあふれた冷却媒体をタンク内壁近傍まで導
く冷却媒体案内機構、タンク内壁に沿って落下し、タン
クの底部に溜った冷却媒体を冷却器に導く機構を設けた
静止誘導器であり、更に、冷却媒体案内機構として複数
の穴を有する案内板を使用した静止誘導器である。That is, the gist of the present invention is to provide a tank filled with an electrically insulating high-pressure gas, a cooling medium tank installed in the tank that stores a cooling medium, and a cooling medium installed in the cooling medium tank that is not eroded by the cooling medium. A stationary induction electric appliance consisting of an iron core wrapped with a winding wire, a cooler that cools the cooling medium, a mechanism that supplies the cooling medium cooled by the cooler to the lower part of the cooling medium tank, and a mechanism that supplies the cooling medium to the cooling medium tank. A cooling medium guide mechanism that guides the overflowing cooling medium from the top end of the cooling medium tank to the vicinity of the tank internal wall so that it falls along the tank internal wall; This is a stationary inductor that is equipped with a mechanism for guiding the cooling medium accumulated in the cooling medium to the cooler, and further uses a guide plate having a plurality of holes as the cooling medium guiding mechanism.
冷却媒体槽には冷却器で十分冷却された冷却媒体が供給
されており、発熱体全体がこの冷却媒体に完全に侵され
ているので発熱体で発生した熱は効率よく取り除かれ、
更に、冷却媒体槽からあふれた冷却媒体がタンク内壁に
沿って、あるいはその一部がシャワー状となってタンク
中に落下するため漏れ磁束によって発熱するタンク内壁
の熱、及び電気絶縁性高圧ガスの熱を必要最少限の冷却
媒体で取り除く。The cooling medium tank is supplied with a cooling medium that has been sufficiently cooled by a cooler, and the entire heating element is completely covered with this cooling medium, so the heat generated by the heating element is efficiently removed.
Furthermore, as the cooling medium overflowing from the cooling medium tank falls along the tank internal wall or a part of it falls into the tank in the form of a shower, the leakage magnetic flux generates heat on the tank internal wall and the electrically insulating high pressure gas. Heat is removed using the minimum necessary amount of cooling medium.
以下、本発明を実施例によって更に詳述する。 Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例1
本発明を変圧器の例について説明する。第1図は変圧器
の概略断面図、第2図は概略上面図である。Example 1 The present invention will be explained using an example of a transformer. FIG. 1 is a schematic sectional view of the transformer, and FIG. 2 is a schematic top view.
変圧器タンク1内の巻線2は鉄心3に巻回されており、
これらの変圧器中身を冷却する冷却媒体4は変圧器中身
を完全に浸しながら冷却媒体槽5内に満されている。The winding 2 in the transformer tank 1 is wound around the iron core 3,
A cooling medium 4 for cooling the contents of these transformers is filled in a cooling medium tank 5 while completely immersing the contents of the transformers.
そのため、変圧器の巻線2や鉄心3での発熱は冷却媒体
4で吸収され槽中の冷却媒体が昇温するが冷却器10で
降温された冷却媒体4が配管7を介して再び冷却媒体槽
5の下部から補充される構造となっているため、上記変
圧器中身には常に低温の冷却媒体が接触し、効率良く熱
を吸収することができる。Therefore, the heat generated in the windings 2 and iron core 3 of the transformer is absorbed by the cooling medium 4 and the temperature of the cooling medium in the tank rises. Since the tank 5 is refilled from the bottom, the low-temperature cooling medium is always in contact with the inside of the transformer, and heat can be efficiently absorbed.
又、熱を吸収した冷却媒体は冷却媒体槽5の上面まで到
達した後に変圧器タンクのカバーの極く近傍で溢れ、冷
却媒体ガイド11を伝わってその大部分がタンク1側板
やそれに取付けられている磁気シールド板12に注がれ
て落下する様になっているため、タンクのカバーから底
板までのほぼタンク全域を1遍なく冷却することができ
る。又第2図の如く変圧器タンクを蓋する様取付けられ
た冷却媒体ガイド11の途中には多数の小さな冷却穴〇
が設けられているため、冷却媒体槽5を溢れた冷却媒体
4がタンク1の側板や磁気シールド板12に注がれる前
に、その一部がシャワー状にタンク中に落下し途中にあ
る絶縁ガス8から熱を奪う作用もしている。Furthermore, after the coolant that has absorbed the heat reaches the top surface of the coolant tank 5, it overflows in the vicinity of the cover of the transformer tank, travels through the coolant guide 11, and most of the coolant is attached to the side plate of the tank 1 or attached thereto. Since the liquid is poured onto the magnetic shielding plate 12 and falls, almost the entire tank area from the tank cover to the bottom plate can be cooled evenly. Also, as shown in Fig. 2, many small cooling holes 〇 are provided in the middle of the cooling medium guide 11 installed to cover the transformer tank, so that the cooling medium 4 overflowing from the cooling medium tank 5 flows into the tank 1. Before being poured onto the side plates and magnetic shielding plate 12, a portion of the gas falls into the tank like a shower, and also acts to remove heat from the insulating gas 8 along the way.
そして、タンク上部から落下したこれらの冷却媒体はタ
ンク底部に溜り、その後、配管7.ポンプロを通って冷
却器7へ導かれ冷却媒体槽5の下部へ戻るサイクルを構
成している。The cooling medium that fell from the top of the tank collects at the bottom of the tank, and then flows into the pipe 7. This constitutes a cycle in which the fluid passes through the pump, is guided to the cooler 7, and returns to the lower part of the cooling medium tank 5.
実施例2
第3図は本発明の他の実施例で、変圧器の要部断面図を
示している。本例は変圧器タンク1の側板が直線的でな
く高電圧リード線14が外側巻線2bからポケット部1
3を通って外部に導かれている場合である。Embodiment 2 FIG. 3 is another embodiment of the present invention, showing a sectional view of the main parts of a transformer. In this example, the side plate of the transformer tank 1 is not straight, and the high voltage lead wire 14 is connected from the outer winding 2b to the pocket portion 1.
This is the case where it is led to the outside through 3.
磁気シールド板12は直線部だけでなく、ポケット部1
3の一部にも取付けられた複雑な構成となっているが、
タンクカバー付近から溢れた冷却媒体4は容易にその磁
気シールドを伝わって落下することができるため、種々
の制約によりタンク構造が複雑になっても本実の様な冷
却方式で十分効果的に冷却することが可能である。The magnetic shield plate 12 is used not only in the straight part but also in the pocket part 1.
It has a complicated configuration that is also attached to part of 3.
The cooling medium 4 overflowing from around the tank cover can easily travel through the magnetic shield and fall, so even if the tank structure becomes complicated due to various restrictions, the cooling method used in the actual product can be used to effectively cool the tank. It is possible to do so.
実施例3
第4図及び第5図は本発明の他の実施例で、変圧器上部
付近の断面図を示したものである。これらはいずれも高
価な凝縮性の冷却媒体4の量を最少限に減らそうとした
ものであり、変圧器中身とタンク1のカバー間の空間部
を樹脂等の絶縁物15で埋める様にした構造となってい
る。しかも、いずれの構造も冷却媒体4がタンク1を広
範囲に伝わり落下できる様にタンクカバーの極く近傍ま
で導かれ冷却媒体槽5の上面から溢れる構造となってい
る。なお第4図は冷却媒体4の溢れ出し口がタンク1の
側板方向の両側にある場合、第5図は溢れ出し口が中央
部に1ケ所ある場合の例であり、両実施例による効果は
これまでに述べた他の実施例と本質的に変らない。Embodiment 3 FIGS. 4 and 5 are other embodiments of the present invention, showing cross-sectional views of the vicinity of the upper part of the transformer. All of these are intended to reduce the amount of expensive condensable cooling medium 4 to a minimum, and the space between the transformer contents and the cover of tank 1 is filled with an insulating material 15 such as resin. It has a structure. In addition, in both structures, the cooling medium 4 is guided very close to the tank cover and overflows from the top surface of the cooling medium tank 5 so that the cooling medium 4 can travel through the tank 1 over a wide range and fall. Note that FIG. 4 shows an example in which the overflow ports of the cooling medium 4 are located on both sides of the side plate of the tank 1, and FIG. 5 shows an example in which there is one overflow port in the center, and the effects of both embodiments are as follows. This embodiment is essentially the same as the other embodiments described above.
本発明に係わる静電誘導電器では冷却媒体槽に発熱体の
変圧器等の中身全体が浸されているため、最少限の冷却
媒体量で優れた冷却効果を発揮できるようになっている
。しかも他の冷却方式の場合と異なり、鉄心が絶縁ガス
に直接触れる構造とはなっていないため、変圧器等の鉄
心と絶縁ガスの反応による腐食などの不都合も回避する
ことができる。In the electrostatic induction device according to the present invention, the entire contents of the heating element, such as the transformer, are immersed in the cooling medium tank, so that an excellent cooling effect can be achieved with a minimum amount of cooling medium. Moreover, unlike other cooling methods, the iron core is not structured to come into direct contact with the insulating gas, so it is possible to avoid problems such as corrosion caused by reactions between the iron core of a transformer, etc., and the insulating gas.
さらにこの槽の上面から溢れた冷却媒体が、タンクカバ
ーに近接しながら流出し、その大部分がタンク壁面に沿
って落下してタンク底部に溜る構造となっているため、
変圧器の中身だけでなくタンクも含めた全体を容易に冷
却することができ、安価で、冷却特性に優れた静止誘導
電器を提供することができる。Furthermore, the cooling medium that overflows from the top of this tank flows out close to the tank cover, and most of it falls along the tank wall and accumulates at the bottom of the tank.
It is possible to easily cool not only the contents of the transformer but also the entire tank, and it is possible to provide an inexpensive stationary induction electric appliance with excellent cooling characteristics.
第1図及び第2図は本発明の一実施例を示すもので、変
圧器の概略断面図と概略上面図、第3図は本発明の他の
実施例を示す変圧器の要部断面図、そして第4図と第5
図は本発明の他の実施例を示す変圧器上部付近の要部断
面図をそれぞれ示している。
1・・・タンク、2,2a、2b・・・巻線、3・・・
鉄心、4・・・冷却媒体、5・・・冷却媒体槽、6・・
・ポンプ、7・・・配管、8・・・絶縁ガス、9・・・
冷却穴、10・・・冷却器、11・・・冷却ガイド、1
2・・・磁気シールド板、13・・・ポケット部、14
・・・リード線、15・・・絶縁物。1 and 2 show one embodiment of the present invention, and are a schematic sectional view and a schematic top view of a transformer, and FIG. 3 is a sectional view of essential parts of a transformer showing another embodiment of the present invention. , and Figures 4 and 5.
The figures each show a sectional view of a main part near the upper part of a transformer showing another embodiment of the present invention. 1...Tank, 2, 2a, 2b...Winding, 3...
Iron core, 4...Cooling medium, 5...Cooling medium tank, 6...
・Pump, 7... Piping, 8... Insulating gas, 9...
Cooling hole, 10... Cooler, 11... Cooling guide, 1
2... Magnetic shield plate, 13... Pocket part, 14
...Lead wire, 15...Insulator.
Claims (3)
ク内に設置された冷却媒体を収納した冷却媒体槽と、上
記冷却媒体槽内に設置され上記冷却媒体中に侵された巻
線を巻いた鉄心とから成る静止誘導電器に於いて、上記
冷却媒体を冷却する冷却器、上記冷却器によつて冷却さ
れた冷却媒体を上記冷却媒体槽の下部に供給する機構、
上記冷却媒体を上記冷却媒体槽に供給することによつて
上記冷却媒体槽上端部からあふれた上記冷却媒体を上記
タンクの内壁に沿つて落下するように上記冷却媒体を上
記タンク内壁近傍まで導く冷却媒体案内機構、上記タン
ク内壁に沿つて落下し、底部に溜つた上記冷却媒体を上
記冷却器に導く機構とを設けたことを特徴とする静止誘
導電器。1. A tank filled with electrically insulating high pressure gas, a cooling medium tank installed in the tank and containing a cooling medium, and an iron core installed in the cooling medium tank and wrapped with a winding corroded by the cooling medium. A stationary induction electric appliance comprising: a cooler for cooling the cooling medium; a mechanism for supplying the cooling medium cooled by the cooler to a lower part of the cooling medium tank;
Cooling by supplying the cooling medium to the cooling medium tank and guiding the cooling medium overflowing from the upper end of the cooling medium tank to the vicinity of the tank inner wall so that the cooling medium falls along the inner wall of the tank. A stationary induction electric appliance characterized by being provided with a medium guide mechanism and a mechanism for guiding the cooling medium falling along the inner wall of the tank and collecting at the bottom to the cooler.
徴とする特許請求の範囲第1項記載の静止誘導電器。2. The stationary induction electric appliance according to claim 1, wherein the coolant guide mechanism is a coolant guide plate.
特徴とする特許請求の範囲第2項記載の静止誘導電器。3. 3. The stationary induction electric appliance according to claim 2, wherein the cooling medium guide plate is provided with a plurality of holes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27304387A JPH01117006A (en) | 1987-10-30 | 1987-10-30 | Stationary induction apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27304387A JPH01117006A (en) | 1987-10-30 | 1987-10-30 | Stationary induction apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01117006A true JPH01117006A (en) | 1989-05-09 |
Family
ID=17522369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27304387A Pending JPH01117006A (en) | 1987-10-30 | 1987-10-30 | Stationary induction apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01117006A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013171850A (en) * | 2012-02-17 | 2013-09-02 | Chugoku Electric Power Co Inc:The | Transformer |
-
1987
- 1987-10-30 JP JP27304387A patent/JPH01117006A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013171850A (en) * | 2012-02-17 | 2013-09-02 | Chugoku Electric Power Co Inc:The | Transformer |
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