JPH0351083B2 - - Google Patents
Info
- Publication number
- JPH0351083B2 JPH0351083B2 JP59129603A JP12960384A JPH0351083B2 JP H0351083 B2 JPH0351083 B2 JP H0351083B2 JP 59129603 A JP59129603 A JP 59129603A JP 12960384 A JP12960384 A JP 12960384A JP H0351083 B2 JPH0351083 B2 JP H0351083B2
- Authority
- JP
- Japan
- Prior art keywords
- vertical
- duct
- radial dimension
- vertical duct
- ducts
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 28
- 230000006698 induction Effects 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000003507 refrigerant Substances 0.000 description 13
- 239000002826 coolant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 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
- H01F27/2876—Cooling
-
- 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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/322—Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (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の巻線構造に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a winding structure for a stationary induction appliance.
第２図にはSF6ガス絶縁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円筒巻線１
は、鉄心脚に巻回された内側絶縁筒２の外周に複
数の垂直ダクト３を形成するように各巻線単位
（以下コイルと称する）４を垂直スペーサ５を介
して巻回すると共に、水平スペーサ６を上下端部
に配置し、垂直ダクト３と連通する水平ダクト７
を設けて形成されている。この垂直ダクト３の間
隔δはほぼ等間隔に構成されている。なお同図に
おいて８は絶縁リング、９は外側絶縁筒である。
FIG. 2 shows a conventional example of an SF 6 gas insulated transformer. As shown in the figure, the cylindrical winding 1
In this method, each winding unit (hereinafter referred to as a coil) 4 is wound through a vertical spacer 5 so as to form a plurality of vertical ducts 3 on the outer periphery of an inner insulating cylinder 2 wound around an iron core leg, and a horizontal spacer is 6 are arranged at the upper and lower ends, and a horizontal duct 7 communicates with the vertical duct 3.
It is formed by providing The vertical ducts 3 are arranged at substantially equal intervals δ. In the figure, 8 is an insulating ring, and 9 is an outer insulating cylinder.
このように構成されたSF6ガス絶縁変圧器で
は、冷却媒体は図中に矢印で示されているように
巻線下部おいて水平ダクト７から流入し、この流
入した冷媒はコイル４間の垂直ダクト３を上昇し
て各コイル４を冷却する。ところでこの冷媒流量
は各垂直ダクト３でほぼ等しく、巻線１の最内周
側および最外周側の垂直ダクト３では与えられる
熱量が中央部の垂直ダクト３の約３の約1/2と小
さいため、冷却媒体の温度上昇が他の垂直ダクト
３における冷媒の温度上昇より小さくなる。最内
周側および最外周側の垂直ダクト３に与えられる
熱量が中央部の垂直ダクト３の約1/2と小さいの
は、中央部の垂直ダクト３に与えられる熱量はそ
の垂直ダクト３をはさんでいる両側のコイル４か
ら与えられるのに対し、最内周側および最外周側
の垂直ダクト３に与えられる熱量はその最内周側
または最外周側のコイル４から与えられるだけで
あるからである。 In the SF 6 gas insulated transformer configured in this way, the cooling medium flows from the horizontal duct 7 at the bottom of the winding as shown by the arrow in the figure, and this flowing cooling medium flows vertically between the coils 4. The duct 3 is ascended to cool each coil 4. By the way, this refrigerant flow rate is almost equal in each vertical duct 3, and the amount of heat given to the vertical ducts 3 on the innermost and outermost sides of the winding 1 is small, about 1/2 of that of the vertical duct 3 in the center. Therefore, the temperature rise of the coolant is smaller than the temperature rise of the coolant in other vertical ducts 3. The reason why the amount of heat given to the vertical ducts 3 on the innermost and outermost sides is about 1/2 that of the vertical duct 3 in the center is that the amount of heat given to the vertical ducts 3 in the center is smaller than that of the vertical ducts 3 in the center. The amount of heat given to the vertical ducts 3 on the innermost and outermost sides is only given from the coils 4 on the innermost and outermost sides, whereas the heat is given from the coils 4 on both sides of the sandwich. It is.
従つて各コイル４の平均温度上昇は縦軸に温度
をとり横軸にコイル番号をとつて温度とコイル番
号との関係が示されている第３図のように、最内
周側のコイル（No.１）および最外周側のコイル
（No.４）の温度が低く、中央部のコイル（No.２、
３）の温度が高く、各コイルの温度が不均一にな
る傾向があつた。 Therefore, the average temperature rise of each coil 4 is determined by the innermost coil ( No. 1) and the outermost coil (No. 4) are low in temperature, and the central coil (No. 2,
3) The temperature was high, and the temperature of each coil tended to be uneven.
本発明は以上の点に鑑みなされたであり、各コ
イルの温度上昇を均等化することを可能とした静
止誘導電器の巻線構造を提供することを目的とす
るものである。
The present invention was made in view of the above points, and it is an object of the present invention to provide a winding structure for a stationary induction appliance that makes it possible to equalize the temperature rise of each coil.
すなわち本発明は内側絶縁筒の外周に径方向に
複数の垂直ダクトを形成するように垂直スペーサ
を介して同心筒状に巻回された複数の円筒巻線ま
たはシート巻線の巻線単位を、前記垂直ダクトと
連通し前記巻線単位の上下端部に水平ダクトを形
成する上、下水平スペーサ間に配置した静止誘導
電器の巻線構造において、最内外周側の垂直ダク
トの少なくとも一方もしくは両方の径方向寸方
を、この他の部分の前記垂直ダクトの径方向寸方
より小さくしたことを特徴とするものであり、こ
れによつて最内外周側の垂直ダクトの少なくとも
一方もしくは両方の径方向寸方は、この他の部分
の垂直ダクトの径方向寸法より小さく形成される
ようになる。
That is, the present invention includes a winding unit of a plurality of cylindrical windings or sheet windings that are concentrically wound through vertical spacers so as to form a plurality of vertical ducts in the radial direction on the outer periphery of an inner insulating cylinder. In a winding structure of a stationary induction appliance arranged between upper and lower horizontal spacers that communicate with the vertical duct to form horizontal ducts at the upper and lower ends of the winding unit, at least one or both of the vertical ducts on the innermost and outermost circumferential sides. is characterized in that the radial dimension of the vertical duct is smaller than the radial dimension of the vertical duct in the other portions, whereby the diameter of at least one or both of the vertical ducts on the innermost and outermost circumferential sides is smaller. The directional dimension is smaller than the radial dimension of the vertical duct in other parts.
以下、図示した実施例に基づいて本発明を説明
する。第１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。本実施例では最内周側および
最外周側の垂直ダクト３の径方向寸法δ1を、この
他の部分の垂直ダクト３の径方向寸方δ2より小さ
くした。このようにすることにより最内周側およ
び最外周側の垂直ダクト３の径方向寸法δ1はこの
他の部分の垂直ダクト３の径方向寸法δ2より小さ
くなつて、各コイルの温度上昇を均等化すること
を可能とした静止誘導電器の巻線構造を得ること
ができる。
The present invention will be explained below based on the illustrated embodiments. FIG. 1 shows an embodiment of the invention. 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, the radial dimension δ 1 of the vertical duct 3 on the innermost circumferential side and the outermost circumferential side is made smaller than the radial direction dimension δ 2 of the vertical duct 3 on the other parts. By doing this, the radial dimension δ 1 of the vertical duct 3 on the innermost and outermost periphery sides becomes smaller than the radial dimension δ 2 of the vertical duct 3 on the other parts, thereby reducing the temperature rise of each coil. It is possible to obtain a winding structure for a stationary induction appliance that enables equalization.
この垂直ダクト３の径方向寸法δ1，δ2は次に述
べるようにして定めることができる。一般に垂直
ダクト３の冷媒流量Ｑ（m3／Ｓ）は、垂直ダクト
３相互間の圧力損失ｈ（mmAq）が等しくなるよう
に配分される。垂直ダクト３の圧力損失ｈは、垂
直ダクト３を第４図にも示されているように径方
向寸法δ（ｍ）、長さＬ（ｍ）、奥行方向の長さＷ
（ｍ）の矩形ダクトとみなすことができ、(1)式を
用いて近似的に求めることができる。 The radial dimensions δ 1 and δ 2 of the vertical duct 3 can be determined as follows. Generally, the refrigerant flow rate Q (m 3 /S) of the vertical ducts 3 is distributed so that the pressure loss h (mmAq) between the vertical ducts 3 is equal. The pressure loss h of the vertical duct 3 is determined by the radial dimension δ (m), length L (m), and depth direction length W of the vertical duct 3, as shown in FIG.
(m) can be regarded as a rectangular duct, and can be approximately determined using equation (1).
ｈ＝（γλL／4gW2） Q2／δ3 ……(1)
ここでγは冷媒の比重量（Kg／m3）、ｇは重力
加速度（ｍ／S2）、λは管摩擦損失係数である。 h=(γλL/4gW 2 ) Q 2 /δ 3 ...(1) Here, γ is the specific weight of the refrigerant (Kg/m 3 ), g is the gravitational acceleration (m/S 2 ), and λ is the pipe friction loss coefficient It is.
普通SF6ガスのように粘度が小さい冷媒では流
量Ｑが多少変化しても管摩擦損失係数λはほぼ一
定の値となる。従つて(1)式のλL／4gW2の値も本
考察においては一定と考えてよい。このλL／
4gW2の値をＣとすれば、圧力損失ｈは(2)式で表
わされ、Q2／δ3に比例する。 Normally, in the case of a refrigerant with a low viscosity such as SF 6 gas, the pipe friction loss coefficient λ remains approximately constant even if the flow rate Q changes somewhat. Therefore, the value of λL/4gW 2 in equation (1) can also be considered constant in this discussion. This λL/
If the value of 4gW 2 is C, the pressure loss h is expressed by equation (2) and is proportional to Q 2 /δ 3 .
ｈ＝ＣQ2／δ3 ……(2)
一方、最内周側および最外周側の垂直ダクト３
に加えられる熱量は上述のように中央部の垂直ダ
クト３の約1/2になつていいるので、各垂直ダク
ト３の冷媒と温度上昇を均等するには、最内周側
および最外周側の垂直ダクト３を流れる流量もこ
の他の中央部垂直ダクト３の流量の約1/2にする
必要がある。これを実現するには(2)式において、
圧力損失ｈが一定の条件で冷媒流量Ｑを1/2にし
た場合の垂直ダクト３の径方向寸法（間隔）δ1を
求めればよい。そしてこの他の部分である中央部
の垂直ダクト３の径方向寸法（間隔）を上述のよ
うにδ2とすれば、
（1/2Ｑ）2／δ1 3＝Q2／δ2 3 ……(3)
となる。従つて、
となり、最内周側および最外周側の垂直ダクト３
の径方向寸法δ1とこの他の部分の垂直ダクト３の
径方向寸法δ2との関係が得られる。そして実際の
製品と製作において、垂直ダクト３の冷媒流量Ｑ
のばらつきとして±20％程度が許容されるとすれ
ば、垂直ダクト間隔に関する許容量は(5)式のよう
になる。 h=CQ 2 /δ 3 ...(2) On the other hand, the innermost and outermost vertical ducts 3
As mentioned above, the amount of heat added to the central vertical duct 3 is approximately 1/2, so in order to equalize the refrigerant and temperature rise in each vertical duct 3, it is necessary to add heat to the innermost and outermost ducts. The flow rate flowing through the vertical duct 3 must also be approximately 1/2 of the flow rate through the other central vertical duct 3. To achieve this, in equation (2),
What is necessary is to find the radial dimension (spacing) δ 1 of the vertical duct 3 when the refrigerant flow rate Q is halved under the condition that the pressure loss h is constant. If the radial dimension (interval) of the vertical duct 3 in the center, which is the other part, is δ 2 as described above, then (1/2Q) 2 /δ 1 3 =Q 2 /δ 2 3 ... (3) becomes. Therefore, Therefore, the innermost and outermost vertical ducts 3
The relationship between the radial dimension δ 1 of the vertical duct 3 and the radial dimension δ 2 of the vertical duct 3 of this other portion is obtained. In the actual product and manufacturing, the refrigerant flow rate Q of the vertical duct 3 is
If a variation of about ±20% is allowed, then the permissible amount for the vertical duct spacing is as shown in equation (5).
従つてδ1とδ2との関係は理論的には(4)式の値と
なるが、実用的には(5)式で与えられる範囲に設定
される。 Therefore, although the relationship between δ 1 and δ 2 is theoretically the value of equation (4), it is practically set within the range given by equation (5).
このように最内周反側および最外周側の垂直ダ
クト３の径方向寸法δ1をこの他の部分の垂直ダク
ト３の径方向寸法δ2より小さくすることにより、
最内周側および最外周側の垂直ダクト３を流れる
冷媒の流量を減少させ、その分だけ中央部の垂直
ダクト３を流れる冷媒流量を増加させることがで
きるようになる。すなわち各垂直ダクト３に与え
られる熱量の大小に応じて冷媒の流量が調整でき
るようになつて、各垂直ダクト３における冷媒の
温度上昇を均等化することができるようになり、
縦軸に温度をとり、横軸にコイル番号をとつて温
度とコイル番号との関係が示されている第５図に
も示されているように、各コイル４の温度上昇を
均等にすることができる。そして巻線１全体の径
方向寸法を殆んど増加させることなく巻線１の温
度分布が均等化できるので、最も高い所の温度上
昇が低下した分だけ冷却器台数の減少や電流密度
の増大により、静止用誘導電器全体が小型化でき
る。 In this way, by making the radial dimension δ 1 of the vertical duct 3 on the opposite side of the innermost circumference and the outermost circumference smaller than the radial dimension δ 2 of the vertical duct 3 on the other parts,
The flow rate of refrigerant flowing through the vertical ducts 3 on the innermost and outermost circumferential sides can be reduced, and the flow rate of refrigerant flowing through the vertical duct 3 in the center can be increased accordingly. In other words, the flow rate of the refrigerant can be adjusted according to the amount of heat given to each vertical duct 3, and the temperature rise of the refrigerant in each vertical duct 3 can be equalized.
As shown in Figure 5, which shows the relationship between temperature and coil number by plotting temperature on the vertical axis and coil number on the horizontal axis, the temperature rise of each coil 4 should be made equal. I can do it. Furthermore, since the temperature distribution of the winding 1 can be equalized without increasing the radial dimension of the entire winding 1, the number of coolers can be reduced and the current density can be increased by the reduction in temperature rise at the highest point. As a result, the entire stationary induction electric appliance can be downsized.
なお全体の垂直ダクト３の寸法は、例えば周辺
部の垂直ダクト３を従来構造より小さくした場合
には、中央部の垂直ダクト３を従来構造より大き
くとつて、全体の冷媒の流量を減少させないよう
に設定してもよい。 The overall dimensions of the vertical duct 3 are such that, for example, if the vertical duct 3 at the periphery is made smaller than the conventional structure, the vertical duct 3 at the center is made larger than the conventional structure so as not to reduce the overall refrigerant flow rate. It may be set to
なおまた本実施例は円筒巻線の場合について説
明したが、シート巻線の場合も同様にして実施で
きることは云うまでもない。 Furthermore, although this embodiment has been described in the case of a cylindrical winding, it goes without saying that it can be implemented in the same manner in the case of a sheet winding.
上述のように本発明は各垂直ダクトに与えられ
る熱量の大小に応じて冷媒が流れるようになつ
て、各コイルの温度上昇を均等化することができ
るようになり、各コイルの温度上昇が均等化する
ことを可能とした静止誘導同電器の巻線構造を得
ることができる。
As described above, the present invention allows the refrigerant to flow in accordance with the amount of heat given to each vertical duct, making it possible to equalize the temperature rise of each coil. It is possible to obtain a winding structure for a stationary induction device that allows for
第１図は本発明の静止誘導電器の巻線構造の一
実施例の縦断側面図、第２図は従来の静止誘導電
器の巻線構造の縦断側面図、第３図は従来の静止
誘導電器の巻線構造の径方向の温度分布図、第４
図は本発明の静止誘導電器の巻線構造の一実施例
の垂直ダクトの斜視図、第５図は同じく一実施例
の径方向の温度分布図である。
１……円筒巻線、２……内側絶縁筒、３……垂
直ダクト、４……コイル（巻線単位）、５……垂
直スペーサ、６……水平スペーサ、７……水平ダ
クト、９……外側絶縁筒、δ1……最内周および最
外周側の垂直ダクトの径方向寸法、δ2……最内周
および最外側以外の垂直ダクトの径方向寸法。
FIG. 1 is a vertical side view of an embodiment of the winding structure of a stationary induction electric appliance according to the present invention, FIG. 4th radial temperature distribution diagram of the winding structure of
The figure is a perspective view of a vertical duct of an embodiment of the winding structure of a stationary induction appliance according to the present invention, and FIG. 5 is a temperature distribution diagram in the radial direction of the same embodiment. 1... Cylindrical winding, 2... Inner insulating tube, 3... Vertical duct, 4... Coil (winding unit), 5... Vertical spacer, 6... Horizontal spacer, 7... Horizontal duct, 9... ...Outer insulation cylinder, δ 1 ... Radial dimension of the vertical duct on the innermost and outermost sides, δ 2 ... Radial dimension of the vertical duct other than the innermost and outermost circumference.
Claims (1)
トを形成するように垂直スペーサを介して同心円
筒状に巻回された複数の円筒巻線またはシート巻
線の巻線単位を、前記垂直ダクトと連通し前記巻
線単位の上下端部に水平ダクトを形成する上、下
水平スペーサ間に配置した静止誘導電器の巻線構
造において、最内外周側の前記垂直ダクトの少な
くとも一方もしくは両方の径方向寸法を、この他
の部分の前記垂直ダクトの径方向寸法より小さく
したことを特徴とする静止誘導電器の巻線構造。 ２ 前記最内外周側の垂直ダクトの少なくとも一
方もしくは両方の径方向寸方δ1とこの他の部分の
垂直ダクトの径方向寸方δ2が、 0.56δ2δ10.73δ2の範囲に設定されるものであ
る特許請求の範囲第１項記載の静止誘導電器の巻
線構造。[Claims] 1. A plurality of cylindrical windings or sheet windings wound in a concentric cylindrical shape via vertical spacers so as to form a plurality of vertical ducts in the radial direction on the outer periphery of an inner insulating cylinder. In a winding structure of a stationary induction appliance in which a unit communicates with the vertical duct and is arranged between upper and lower horizontal spacers to form a horizontal duct at the upper and lower ends of the winding unit, A winding structure for a stationary induction electric appliance, characterized in that the radial dimension of at least one or both of the vertical ducts is smaller than the radial dimension of the other portion of the vertical duct. 2. The radial dimension δ 1 of at least one or both of the vertical ducts on the innermost and outer circumferential sides and the radial dimension δ 2 of the other vertical ducts are set in the range of 0.56 δ 2 δ 1 0.73 δ 2 A winding structure for a stationary induction electric appliance according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12960384A JPS618909A (en) | 1984-06-22 | 1984-06-22 | Winding construction of stationary induction electric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12960384A JPS618909A (en) | 1984-06-22 | 1984-06-22 | Winding construction of stationary induction electric apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS618909A JPS618909A (en) | 1986-01-16 |
| JPH0351083B2 true JPH0351083B2 (en) | 1991-08-05 |
Family
ID=15013538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12960384A Granted JPS618909A (en) | 1984-06-22 | 1984-06-22 | Winding construction of stationary induction electric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618909A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HUE048385T2 (en) | 2015-08-14 | 2020-07-28 | Abb Power Grids Switzerland Ag | Cooling of a static electric induction system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4116508Y1 (en) * | 1964-09-12 | 1966-07-30 |
-
1984
- 1984-06-22 JP JP12960384A patent/JPS618909A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4116508Y1 (en) * | 1964-09-12 | 1966-07-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS618909A (en) | 1986-01-16 |
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