JPS644660B2 - - Google Patents
Info
- Publication number
- JPS644660B2 JPS644660B2 JP6355783A JP6355783A JPS644660B2 JP S644660 B2 JPS644660 B2 JP S644660B2 JP 6355783 A JP6355783 A JP 6355783A JP 6355783 A JP6355783 A JP 6355783A JP S644660 B2 JPS644660 B2 JP S644660B2
- Authority
- JP
- Japan
- Prior art keywords
- flat plate
- lead
- lead wire
- support plate
- iron core
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 18
- 230000006698 induction Effects 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 4
- 230000004907 flux Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
- H01F27/2852—Construction of conductive connections, of leads
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Transformer Cooling (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は静止誘導電器に係り、特に上部締付金
具にリード線が支持されている静止誘導電器に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a stationary induction electric appliance, and more particularly to a stationary induction electric appliance in which a lead wire is supported by an upper clamping member.
第１図および第２図には静止誘導電器例えば３
相変圧器の従来例が示されている。同図に示され
ているように３相変圧器はタンク１内部に収納さ
れ、かつ巻線２が巻装された鉄心３、この鉄心３
の上部側に配置され鉄心３を締付け固定する上部
締付金具４等を備えており、この上部締付金具４
は平板５，５ａ，６および７から構成されてい
る。
Figures 1 and 2 show stationary induction electric appliances such as 3
A conventional example of a phase transformer is shown. As shown in the figure, the three-phase transformer is housed inside a tank 1, and includes an iron core 3 around which a winding 2 is wound.
The upper clamping bracket 4 is arranged on the upper side of the iron core 3 to tighten and fix the iron core 3.
is composed of flat plates 5, 5a, 6 and 7.
このように構成された３相変圧器で発電所用大
容量変圧器になるとその低圧側端子は相分離母線
に接続されるため、気中プツシングにより１個所
から引出される。このため大電流のリード線u1，
u2，v1，v2，w1，w2，x1，x2、y1，y2，z1，z2等
が上部締付金具４の近傍で複雑に配置されること
になり、発電所用大容量変圧器では低圧大電流の
リード線u1〜z2の配線計画が設計上の大きな問題
である。そして例えばタンク１方向にリード線８
v1，９z1のように２重、３重に配置されることが
あり、必然的にリード線８，９上部締付金具４に
近接し、上部締付金具４を過熱し上部締付金具４
の温度上昇を大きくしていた。このめタンク１と
の間隔を広げて機器を大形化したり、リード線
８，９の配置をより複雑化していた。 When a three-phase transformer configured in this manner becomes a large-capacity transformer for a power plant, its low-voltage side terminal is connected to the phase separation bus bar, so it is pulled out from one location by air pushing. Therefore, the large current lead wire u 1 ,
u 2 , v 1 , v 2 , w 1 , w 2 , x 1 , x 2 , y 1 , y 2 , z 1 , z 2 etc. are arranged in a complicated manner near the upper fastener 4. In large-capacity transformers for power plants, the wiring plan for the low-voltage, high-current lead wires u 1 to z 2 is a major design problem. For example, lead wire 8 is directed toward tank 1.
The lead wires 8 and 9 are sometimes arranged in double or triple layers like v 1 and 9z 1 , and the lead wires 8 and 9 are inevitably close to the upper clamping bracket 4, overheating the upper clamping bracket 4 and damaging the upper clamping bracket. 4
temperature rise was increasing. For this reason, the distance between the tank 1 and the tank 1 has been increased to increase the size of the equipment, and the arrangement of the lead wires 8 and 9 has become more complicated.
ところで発電所用大容量変圧器の低圧大電流の
リード線８と上部締付金具４を構成する平板５，
５ａ，６，７との最小間隔は低圧側の絶縁階級に
より決定され、この最小間隔を保つてリード線８
とほぼ直角に平板５，５ａが、ほぼ平行に平板
６，７が配置されている。そしてリード線８は第
４図および第５図に示されているように絶縁物製
のリード支持板１０を介してこのリード線８とほ
ぼ直角方向の平板５に締付ボルト１１を介して固
定され、水平に配設されているリード線９は第６
図および第７図に示されているようにリード支持
板１０を介して同様このリード線９とほぼ直角方
向の平板６に締付ボルト１１を介して固定されて
いる。 By the way, the flat plate 5 that constitutes the low-voltage, high-current lead wire 8 and the upper clamping fitting 4 of a large-capacity transformer for a power plant,
The minimum distance between the lead wires 5a, 6, and 7 is determined by the insulation class on the low voltage side.
Flat plates 5, 5a are arranged approximately perpendicular to the plane, and flat plates 6, 7 are arranged substantially parallel to the plane. As shown in FIGS. 4 and 5, the lead wire 8 is fixed via a lead support plate 10 made of an insulator to a flat plate 5 in a direction substantially perpendicular to the lead wire 8 via a tightening bolt 11. The lead wire 9, which is arranged horizontally, is connected to the sixth
As shown in FIG. 7 and FIG. 7, the lead wire 9 is similarly fixed to a flat plate 6 in a direction substantially perpendicular to the lead wire 9 via a lead support plate 10 via a tightening bolt 11.
〔発明の目的〕
本発明は以上の点に鑑みなされたものであり、
上部締付金具の温度上昇の低減を可能として静止
誘導電器を提供することを目的とするものであ
る。[Object of the invention] The present invention has been made in view of the above points,
The object of the present invention is to provide a stationary induction electric appliance that can reduce the temperature rise of the upper fastening fitting.
すなわち本発明はリード支持板と平板との接合
部に油溝を設けたことも特徴とするものである。
That is, the present invention is also characterized in that an oil groove is provided at the joint between the lead support plate and the flat plate.
発明者はどうして上部締付金具の温度上昇が大
きくなるのかを検討した。磁束印加の違いをパラ
メータにとり縦軸に損失をとり横軸に磁束密度を
とつて磁束印加の違いによる平板の損失特性を示
されている第３図のように、磁束が平板の両面か
ら印加される場合Ｐの損失は図中に実線で示され
ているように、磁束が平板の片面から印加される
場合Ｑの図中に点線で示されている損失に比べて
約２倍ほど大きい。これをリード線による磁束の
場合でみるとリード線とほぼ直角方向の平板が両
面から印加される場合Ｐに相当し、リード線とほ
ぼ平行に配置された平板が片面から印加される場
合Ｑに相当する。このように電界上から同じ開隔
を保つて配置された平板でもリード線に対する方
向によつては損失が約２倍違うのにもかかわら
ず、リード線の支持がし易い、短絡時の機械的強
度が向上できる等の点から、リード線はリード支
持板を介してリード線とほぼ直角方向に損失の大
きい平板に取り付けられている。しかもこのリー
ド支持板は絶縁物製で熱放散がしや断されるの
で、平板が局部過熱されて温度が上昇し、上部締
付金具の温度上昇を大きくしている。従つて上部
締付金具の温度上昇を低減するには最も温度上昇
の大きくなるリード支持板と平板との接続部の温
度上昇を低減してやればよいことが判つた。そこ
で本発明ではリード支持板と平板との接合部に油
溝を設けた。このようにすることにより上部締付
金具の温度上昇の低減を可能とした静止誘導電器
を得ることを可能としたものである。 The inventor investigated why the temperature rise in the upper fastener increases. Magnetic flux is applied from both sides of a flat plate, as shown in Figure 3, which shows the loss characteristics of a flat plate due to differences in magnetic flux application, with the vertical axis representing loss and the horizontal axis representing magnetic flux density. When the magnetic flux is applied from one side of the flat plate, the loss of P, as shown by the solid line in the figure, is about twice as large as the loss of Q, shown by the dotted line in the figure, when the magnetic flux is applied from one side of the flat plate. Looking at this in the case of magnetic flux due to lead wires, when the magnetic flux is applied from both sides to a flat plate that is almost perpendicular to the lead wires, it corresponds to P, and when the magnetic flux is applied from one side to a flat plate that is placed almost parallel to the lead wires, it corresponds to Q. Equivalent to. In this way, even if the flat plates are arranged with the same distance from the electric field, the loss will vary by about twice depending on the direction relative to the lead wire. In order to improve the strength, the lead wires are attached to a flat plate with a large loss through a lead support plate in a direction substantially perpendicular to the lead wires. Moreover, since this lead support plate is made of an insulating material and heat dissipation is easily cut off, the flat plate is locally overheated and the temperature rises, increasing the temperature rise of the upper fastener. Therefore, it has been found that in order to reduce the temperature rise in the upper fastening fitting, it is sufficient to reduce the temperature rise at the connection portion between the lead support plate and the flat plate, where the temperature rise is greatest. Therefore, in the present invention, an oil groove is provided at the joint between the lead support plate and the flat plate. By doing so, it is possible to obtain a stationary induction electric appliance that makes it possible to reduce the temperature rise of the upper fastening fitting.
以下、図示した実施例に基づいて本発明を説明
する。第８図および第９図には本発明の一実施例
が示されている。なお従来と同じ部品には同じ符
号を付したので説明を省略する。本実施例ではリ
ード８を支持するリード支持板１０と平板５との
接合部に油溝１２を設けた。そして油溝１２をリ
ード支持板１０の平板５と対向接触する側に設け
た。このようにすることにより油溝１２を流通す
る油によつてリード支持板１０と接続される平板
５の局部過熱が防止されるようになつて、平板５
の温度上昇を低減することができるようになり、
上部締付金具の温度上昇を低減することができ
る。そして上部締付金具の温度上昇が低減できる
ので、信頼性が向上でき、またリード線８を平板
５に近接して配置することができるようになり、
機器を小形化できる。そしてまたリード線８の配
置、リード支持板１０が単純化できる。
The present invention will be explained below based on the illustrated embodiments. An embodiment of the present invention is shown in FIGS. 8 and 9. Note that parts that are the same as those in the conventional system are given the same reference numerals, and therefore their explanations will be omitted. In this embodiment, an oil groove 12 is provided at the joint between the lead support plate 10 that supports the lead 8 and the flat plate 5. An oil groove 12 is provided on the side of the lead support plate 10 that faces and comes into contact with the flat plate 5. By doing this, local overheating of the flat plate 5 connected to the lead support plate 10 is prevented by the oil flowing through the oil groove 12, and the flat plate 5
It becomes possible to reduce the temperature rise of
It is possible to reduce the temperature rise of the upper fastening fitting. Since the temperature rise of the upper clamping fitting can be reduced, reliability can be improved, and the lead wire 8 can be placed close to the flat plate 5.
Equipment can be made smaller. Furthermore, the arrangement of the lead wires 8 and the lead support plate 10 can be simplified.
なお本実施例では油溝１２をリード支持板１０
に設けたが、リード支持板１０と平板５との接合
部であればよく、従つて平板５のリード支持板１
０と対向接触する側に設けてもよい。 In this embodiment, the oil groove 12 is connected to the lead support plate 10.
However, any joint between the lead support plate 10 and the flat plate 5 may be used.
It may be provided on the side facing and in contact with 0.
なおまた本実施例ではリード線８をリード支持
板１０を介して平板５に接続する場合について説
明したが、上述（第６図、第７図参照）のリード
線９をリード支持板１０を介して平板６に接続す
る場合も本実施例の場合と同様である。 Furthermore, in this embodiment, the case where the lead wire 8 is connected to the flat plate 5 via the lead support plate 10 has been described, but the lead wire 9 described above (see FIGS. 6 and 7) is connected to the flat plate 5 via the lead support plate 10. The connection to the flat plate 6 is also the same as in this embodiment.
上述のように本発明は上部締付金具の最も温度
上昇の大きくなる部分の温度上昇を低減するよう
にしたので、低減するようになつて、上部締付金
具の温度上昇の低減を可能とした静止誘導電器を
得ることができる。
As described above, the present invention reduces the temperature rise in the portion of the upper fastening fitting where the temperature rise is the largest. A stationary induction appliance can be obtained.
第１図は従来の静止誘導電器の内部の正面図、
第２図は第１図のＡ−Ａ線に沿う断面図、第３図
は平板の印加磁束の違いによる磁束密度と損失と
の関係を示す特性図、第４図は従来の静止誘導電
器のリード線の支持構造を示す正面図、第５図は
第４図の側面図、第６図は従来の静止誘導電器の
他の例のリード線の支持構造を示す正面図、第７
図は第６図の側面図、第８図は本発明の静止誘導
電器の一実施例のリード線の支持構造を示す正面
図、第９図は第８図の側面図である。
１……タンク、２……巻線、３……鉄心、４…
…上部締付金具、５，５ａ，６，７……平板、
８，９……リード線、１０……リード支持板、１
２……油溝。
Figure 1 is a front view of the interior of a conventional stationary induction electric appliance.
Figure 2 is a cross-sectional view taken along line A-A in Figure 1, Figure 3 is a characteristic diagram showing the relationship between magnetic flux density and loss due to differences in applied magnetic flux to a flat plate, and Figure 4 is a diagram of a conventional static induction electric appliance. 5 is a side view of FIG. 4; FIG. 6 is a front view of another example of a conventional stationary induction appliance; FIG. 7 is a front view showing a lead wire support structure;
6 is a side view of FIG. 6, FIG. 8 is a front view showing a lead wire support structure of an embodiment of the stationary induction electric appliance of the present invention, and FIG. 9 is a side view of FIG. 8. 1...tank, 2...winding, 3...iron core, 4...
...Top clamp, 5, 5a, 6, 7...Flat plate,
8, 9...Lead wire, 10...Lead support plate, 1
2...Oil groove.
Claims (1)
た鉄心と、この鉄心の上部側に配置され、かつ前
記鉄心を締付け固定する上部締付金具とを備え、
前記巻線より導出されたリード線が、このリード
線とほぼ直交するように配設された前記上部締付
金具の平板にリード支持板を介して接続されてい
る静止誘導電器において、前記リード支持板と前
記平板との接合部に油溝を設けたことを特徴とす
る静止誘導電器。1 comprising an iron core housed inside a tank and wound with a winding, and an upper clamping fitting disposed on the upper side of the iron core and tightening and fixing the iron core,
In the stationary induction electric appliance, a lead wire led out from the winding is connected via a lead support plate to a flat plate of the upper fastening fitting arranged substantially perpendicular to the lead wire, the lead support. A stationary induction electric appliance characterized in that an oil groove is provided at a joint between a plate and the flat plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6355783A JPS59189611A (en) | 1983-04-13 | 1983-04-13 | Stationary induction electric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6355783A JPS59189611A (en) | 1983-04-13 | 1983-04-13 | Stationary induction electric apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59189611A JPS59189611A (en) | 1984-10-27 |
| JPS644660B2 true JPS644660B2 (en) | 1989-01-26 |
Family
ID=13232631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6355783A Granted JPS59189611A (en) | 1983-04-13 | 1983-04-13 | Stationary induction electric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59189611A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2656951A1 (en) * | 1990-01-05 | 1991-07-12 | Scherrer Fernand | TORQUE TYPE TRANSFORMER. |
-
1983
- 1983-04-13 JP JP6355783A patent/JPS59189611A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59189611A (en) | 1984-10-27 |
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