JPH0749775Y2 - Stationary induction equipment - Google Patents
Stationary induction equipmentInfo
- Publication number
- JPH0749775Y2 JPH0749775Y2 JP1985150889U JP15088985U JPH0749775Y2 JP H0749775 Y2 JPH0749775 Y2 JP H0749775Y2 JP 1985150889 U JP1985150889 U JP 1985150889U JP 15088985 U JP15088985 U JP 15088985U JP H0749775 Y2 JPH0749775 Y2 JP H0749775Y2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- insulating oil
- block
- insulating cylinder
- insulating
- 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
Landscapes
- Coils Of Transformers For General Uses (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、変圧器、リアクトル等の静止誘導機器に関
し、特に巻線単位が一定間隔を置いて積み重ねられた巻
線ブロツクを備えた静止誘導機器に関するものである。[Detailed Description of the Invention] [Industrial application] The present invention relates to a static induction device such as a transformer or a reactor, and more particularly to a static induction device including winding blocks in which winding units are stacked at regular intervals. It is about equipment.
第３図は従来の静止誘導機器として、例えば変圧器の要
部断面図であつて、内側絶縁筒（１）と外側絶縁筒
（２）との間には、巻線単位としての複数個の円板巻線
（3a）〜（3f）をその軸方向に一定間隔を置いて積み重
ねてなる巻線ブロツク（４）が設けられている。この巻
線ブロツク（４）は案内板（5a）〜（5e）を介して複数
段に積み重ねられている。FIG. 3 is a cross-sectional view of a main part of a conventional static induction device, for example, a transformer. Between the inner insulating cylinder (1) and the outer insulating cylinder (2), a plurality of winding units are provided. A winding block (4) is provided in which the disk windings (3a) to (3f) are stacked at regular intervals in the axial direction. The winding block (4) is stacked in a plurality of stages via the guide plates (5a) to (5e).
各円板巻線（3a）〜（3f）間には水平ダクト（6a）〜
（6g）が形成されている。内側絶縁筒（１）と巻線ブロ
ツク（４）および外側絶縁筒（２）と巻線ブロツク
（４）とのそれぞれの間には、垂直ダクト（７），
（８）が形成されている。案内板（5a）〜（5e）は内側
絶縁筒（１）、外側絶縁筒（２）のそれぞれの側壁に交
互に設けられている。そして、その案内板（5a）〜（5
e）の外側絶縁筒（２）側、内側絶縁筒（１）側には、
冷却媒体としての絶縁油が通過する通過部（9a）〜（9
e）がそれぞれ形成されている。Horizontal duct (6a) ~ between each disk winding (3a) ~ (3f)
(6g) is formed. Between the inner insulating cylinder (1) and the winding block (4) and between the outer insulating cylinder (2) and the winding block (4), vertical ducts (7),
(8) is formed. The guide plates (5a) to (5e) are alternately provided on the side walls of the inner insulating cylinder (1) and the outer insulating cylinder (2). Then, the guide plates (5a) to (5
On the outer insulation cylinder (2) side and the inner insulation cylinder (1) side of e),
Passing parts (9a) through (9a) through which insulating oil as a cooling medium passes
e) are each formed.
次に、上記構成の変圧器の絶縁油による冷却作用につい
て説明する。絶縁油は第３図の矢印Ａに示すように通過
孔（9a）から流入し、各水平ダクト（6a）〜（6g）に沿
つて外側絶縁筒（２）の軸心方向に並流する。この絶縁
油は、通過部（9b）近傍で合流し、その通過部（9b）か
ら再び隣接する巻線ブロツク（４）内に流入することに
なる。この巻線ブロツク（４）内では、絶縁油は、再び
水平ダクト（6a）〜（6g）に沿つて前段の巻線ブロツク
（４）と反対方向に並流し、通過部（9c）からさらに隣
接する巻線ブロツク（４）内に流入する。そして、絶縁
油が各巻線ブロツク（４）内を上記のように流れるとき
に、円板巻線（3a）〜（3f）からの発熱は絶縁油により
除去される。Next, the cooling effect of the insulating oil in the transformer having the above configuration will be described. The insulating oil flows in from the passage hole (9a) as shown by an arrow A in FIG. 3, and flows in parallel in the axial direction of the outer insulating cylinder (2) along each horizontal duct (6a) to (6g). This insulating oil merges in the vicinity of the passage portion (9b) and then flows into the adjacent winding block (4) again from the passage portion (9b). In this winding block (4), the insulating oil flows along the horizontal ducts (6a) to (6g) again in the opposite direction to the winding block (4) of the preceding stage, and is further adjacent to the passage section (9c). Flows into the winding block (4). When the insulating oil flows through each winding block (4) as described above, the heat generated from the disk windings (3a) to (3f) is removed by the insulating oil.
上記のように構成された変圧器においては、各水平ダク
ト（6a）〜（6g）を流れる絶縁油の流量（Ｑ）は、第４
図から解るように巻線ブロツク（４）内の絶縁油入口側
が小さく、絶縁油出口側が大きい。その結果、円板巻線
（3a）〜（3f）の温度（Ｔ）は、絶縁油の流量が大きい
所では低く、流量が小さい所ほど高くなるので、第４図
の点線で示すように巻線ブロツク（４）のうち、絶縁油
の出口近傍の円板巻線（3f）の温度が低く、その入口近
傍の円板巻線（3a）の温度が高くなり、巻線ブロツク
（４）内の円板巻線（3a）〜（3f）の温度（Ｔ）は均一
にならない。In the transformer configured as described above, the flow rate (Q) of insulating oil flowing through each horizontal duct (6a) to (6g) is
As can be seen from the figure, the insulating oil inlet side in the winding block (4) is small and the insulating oil outlet side is large. As a result, the temperature (T) of the disk windings (3a) to (3f) is low at a high flow rate of insulating oil and high at a low flow rate of the insulating oil. In the wire block (4), the temperature of the disk winding (3f) near the outlet of the insulating oil is low, and the temperature of the disk winding (3a) near its inlet is high, and the inside of the wire block (4) The temperature (T) of the disk windings (3a) to (3f) is not uniform.
また、絶縁油は、円板巻線（3a）から発生する熱量によ
り加熱されるため、下位の巻線ブロツク（４）よりも上
位の巻線ブロツク（４）内の絶縁油が高温度となり、上
位のブロツク（４）内の円板巻線（3a）〜（3f）の温度
が高くなる。そして、円板巻線（3a）〜（3f）全体を見
た場合に円板巻線（3a）〜（3f）間に大きな温度差が生
じることになり、巻線ブロツク（４）内での局所的な温
度上昇によつて、円板巻線（3a）〜（3f）の絶縁部材を
劣化させ、変圧器自体の寿命を縮めてしまうといつた問
題点があつた。Further, since the insulating oil is heated by the amount of heat generated from the disc winding (3a), the insulating oil in the upper winding block (4) becomes higher in temperature than the lower winding block (4), The temperature of the disk windings (3a) to (3f) in the upper block (4) becomes high. Then, when the entire disk windings (3a) to (3f) are viewed, a large temperature difference is generated between the disk windings (3a) to (3f), and the inside of the winding block (4) is There has been a problem that the local temperature rise deteriorates the insulating members of the disk windings (3a) to (3f) and shortens the life of the transformer itself.
この考案は、かかる問題点を解決するためになされたも
ので、巻線単位の局所的な温度上昇を抑えその絶縁部材
の熱劣化を防ぐことのできる静止誘導機器を得ることを
目的とする。The present invention has been made to solve such a problem, and an object thereof is to obtain a static induction device capable of suppressing a local temperature rise in each winding unit and preventing thermal deterioration of its insulating member.
［問題点を解決するための手段］ この考案に係る静止誘導機器は、巻線単位を一定間隔を
おいて積み重ねられた巻線と、この巻線の内径部および
外径部にそれぞれ冷却媒体の垂直道となる間隔を保って
配置された内側絶縁筒および外側絶縁筒と、前記巻線を
複数の巻線ブロックに分割し前記冷却媒体の流れ方向が
各巻線ブロックにおいて交互に反対方向となるように前
記外側絶縁筒の内周壁および前記内側絶縁筒の外周壁に
接するように配置された案内板とで構成され、前記案内
板で区切られた各巻線ブロック内での前記巻線単位の個
数が全巻線ブロックにわたって下端部から上端部に向か
って順次少なくなっているものである。[Means for Solving the Problems] In the static induction device according to the present invention, a winding unit in which winding units are stacked at regular intervals and a cooling medium are respectively provided in an inner diameter portion and an outer diameter portion of the winding. An inner insulating cylinder and an outer insulating cylinder, which are arranged at intervals to form a vertical path, and the winding are divided into a plurality of winding blocks so that the flow directions of the cooling medium are alternately opposite directions in each winding block. And a guide plate arranged so as to contact the inner peripheral wall of the outer insulating cylinder and the outer peripheral wall of the inner insulating cylinder, and the number of the winding units in each winding block divided by the guide plate is It gradually decreases from the lower end to the upper end over all winding blocks.
この考案においては、冷却媒体の出口側ほど巻線単位間
を流れる流速が増大するため、巻線単位と冷却媒体との
間の伝熱係数が大きくなり、冷却媒体の出口側の巻線単
位ほど効率良く冷却される。In this invention, since the flow velocity between the winding units increases on the cooling medium outlet side, the heat transfer coefficient between the winding unit and the cooling medium increases, and the winding unit on the cooling medium outlet side increases. Cools efficiently.
以下、この考案の実施例を図について説明する。第１図
はこの考案の一実施例を示す要部断面図であつて、第３
図と同一または相当部分は同一符号を付し、その説明は
省略する。各巻線ブロツク（４）内の円板巻線の個数
は、最下位では９個（13a）〜（13i）であるのに対し最
上位では３個（13a），（13b），（13c）であり、絶縁
油の入口側で多く、出口側にいくに従つて少なくなつて
いる。An embodiment of this invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an essential part of an embodiment of the present invention.
The same or corresponding parts as those in the figure are designated by the same reference numerals and the description thereof is omitted. The number of disc windings in each winding block (4) is 9 (13a) to (13i) at the lowest position, while it is 3 (13a), (13b), (13c) at the highest position. Yes, there is more on the inlet side of insulating oil and less on the outlet side.
次に、上記構成の変圧器の絶縁油による冷却作用につき
説明する。絶縁油入口側の巻線ブロツク（14）には多数
の円板巻線（13a），（13b），（13c），（13d），……
を収納しているため、水平ダクト（6a），（6b），（6
c），……の数も多数ある。絶縁油出口側の巻線ブロツ
ク（14）には少数の円板巻線（13a），（13b），（13
c）を収納しているため、水平ダクト（6a），（6b），
（6c），（6d）の数も少ない。ところが、各巻線ブロツ
ク（14）内を流れる絶縁油の流量は同一であるため、水
平ダクト（6a），（6b），……数の少ない巻線ブロツク
（14）内の水平ダクト（6a），（6b），……の絶縁油の
流量（Ｑ）は大きい。円板巻線（13a），（13b）……と
絶縁油との間の伝熱係数は絶縁油の流速に比例（乱流の
場合流速の0.8乗、層流の場合流速の1/3乗に比例）する
ため、絶縁油出口側の巻線ブロツク（14）内の円板巻線
（13a），（13b），（13c）と絶縁油との間の伝熱係数
は、絶縁油出口側の巻線ブロツク（14）内の円板巻線
（13a），（13b）……と絶縁油との間の伝熱係数よりも
良好なため、円板巻線（13a），（13b）……と絶縁油と
の間の温度差が小さくなる。このため、絶縁油出口側の
巻線ブロツク（14）内の絶縁油温度は、円板巻線（13
a），（13b）の発生する熱量で温められ、絶縁油入口側
の巻線ブロツク（14）内の絶縁油温度よりも高温度とな
つているが、巻線ブロツク（14）内の最高円板巻線温度
（Ｔ）は、各巻線ブロツク（14）ともほぼ同等となる。
すなわち、絶縁油出口側の巻線ブロツク（14）内の円板
巻線最高温度（Ｔ）を低く抑えることができるため、円
板巻線（13a），（13b）…の絶縁部材の熱劣化を防ぐこ
とができ、変圧器の寿命を長くすることができる。Next, the cooling action of the insulating oil in the transformer having the above structure will be described. A large number of disc windings (13a), (13b), (13c), (13d), ... are provided on the winding block (14) on the insulating oil inlet side.
The horizontal ducts (6a), (6b), (6
There are many c), ... A small number of disk windings (13a), (13b), (13
Since c) is stored, horizontal ducts (6a), (6b),
The numbers of (6c) and (6d) are also small. However, since the flow rate of the insulating oil flowing in each winding block (14) is the same, the horizontal ducts (6a), (6b), ... (6b), ... The insulating oil flow rate (Q) is large. The heat transfer coefficient between the disk windings (13a), (13b) ... and the insulating oil is proportional to the flow velocity of the insulating oil (turbulent flow velocity 0.8 power, laminar flow velocity 1/3 power) Therefore, the heat transfer coefficient between the disk windings (13a), (13b), (13c) in the winding block (14) on the insulating oil outlet side and the insulating oil is Since the heat transfer coefficient between the disc windings (13a), (13b) in the winding block (14) and the insulating oil is better, the disc windings (13a), (13b) ... And the temperature difference between the insulating oil and the insulating oil becomes small. Therefore, the temperature of the insulating oil in the winding block (14) on the insulating oil outlet side is
It is heated by the amount of heat generated by a) and (13b), and the temperature is higher than the insulating oil temperature in the winding block (14) on the insulating oil inlet side, but the highest circle in the winding block (14) The plate winding temperature (T) is almost the same for each winding block (14).
That is, since the maximum temperature (T) of the disk winding in the winding block (14) on the insulating oil outlet side can be kept low, heat deterioration of the insulating members of the disk windings (13a), (13b), ... Can be prevented and the life of the transformer can be extended.
なお、上記実施例では冷却媒体として絶縁油を用いた
が、例えば非凝縮ガスの空気、SF6ガス等であつてもよ
い。Although insulating oil is used as the cooling medium in the above embodiments, non-condensing gas such as air or SF 6 gas may be used.
また、巻線単位として円板巻線（13a），（13b）…を用
いたが、これに限定されることなく、例えばヘリカル巻
線のように、その半径方向に冷却媒体通路を有する巻線
の場合であつてもよい。Further, although the disk windings (13a), (13b), ... Are used as the winding unit, the present invention is not limited to this, and for example, a helical winding having a cooling medium passage in its radial direction. In the case of
さらにまた、上記実施例では静止誘導機器として変圧器
の場合について説明したが、これに限定されることな
く、例えばリアクトル、誘導電圧調整器等であつてもよ
い。Furthermore, in the above embodiment, the case where the stationary induction device is a transformer has been described, but the invention is not limited to this, and may be, for example, a reactor or an induction voltage regulator.
以上のように、この考案によれば、水平ダクトを流れる
絶縁媒体の巻線単位当たりの流量は、下端部から上端部
に向かって各巻線ブロック内での冷却媒体ほど増大し、
巻線単位と冷却媒体との間の伝熱係数が大きくなり、巻
線単位の局所的な温度上昇は抑えられ、その結果巻線単
位の絶縁材料の熱劣化は防止され、静止誘導機器は長期
にわたって使用できる。As described above, according to the present invention, the flow rate of the insulating medium flowing through the horizontal duct per winding unit increases as the cooling medium in each winding block increases from the lower end to the upper end,
The heat transfer coefficient between the winding unit and the cooling medium becomes large, and the local temperature rise of the winding unit is suppressed, and as a result, the thermal deterioration of the insulating material of the winding unit is prevented, and the static induction device is used for a long time. It can be used over.
第１図はこの考案の変圧器の要部断面図、第２図は第１
図の水平ダクトを通過する絶縁油の流量と円板巻線の温
度との関係を示す関係図、第３図は従来の変圧器の要部
断面図、第４図は第３図の水平ダクトを通過する絶縁油
の流量と円板巻線の温度との関係を示す関係図である。 （5a）〜（5e）……案内板、（6a）〜（6i）……水平ダ
クト、（13a）〜（13i）……円板巻線、（14）……巻線
ブロツク。 なお、各図中、同一符号は同一又は相当部分を示す。FIG. 1 is a sectional view of the essential part of the transformer of this invention, and FIG.
FIG. 3 is a relational diagram showing the relationship between the flow rate of insulating oil passing through the horizontal duct and the temperature of the disc winding, FIG. 3 is a cross-sectional view of a main part of a conventional transformer, and FIG. 4 is the horizontal duct of FIG. FIG. 5 is a relationship diagram showing a relationship between the flow rate of insulating oil passing through and the temperature of the disc winding. (5a) ~ (5e) ... Guide plate, (6a) ~ (6i) ... Horizontal duct, (13a) ~ (13i) ... Disc winding, (14) ... Winding block. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
た巻線と、この巻線の内径部および外径部にそれぞれ冷
却媒体の垂直道となる間隔を保って配置された内側絶縁
筒および外側絶縁筒と、前記巻線を複数の巻線ブロック
に分割し前記冷却媒体の流れ方向が各巻線ブロックにお
いて交互に反対方向となるように前記外側絶縁筒の内周
壁および前記内側絶縁筒の外周壁に接するように配置さ
れた案内板と、で構成され、前記案内板で区切られた各
巻線ブロックでの前記巻線単位の個数が全巻線ブロック
にわたって下端部から上端部に向かって順次少なくなっ
ていることを特徴とする静止誘導機器。1. A winding in which winding units are stacked at regular intervals, and an inner insulating cylinder arranged at an inner diameter portion and an outer diameter portion of the winding so as to be spaced apart so as to serve as vertical paths of a cooling medium. And an outer insulating cylinder, the winding is divided into a plurality of winding blocks, and the inner peripheral wall of the outer insulating cylinder and the inner insulating cylinder are arranged so that the flow directions of the cooling medium are alternately opposite in each winding block. A guide plate arranged so as to contact the outer peripheral wall, and the number of winding units in each winding block divided by the guide plate decreases in order from the lower end to the upper end over all the winding blocks. A stationary induction device characterized by having become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985150889U JPH0749775Y2 (en) | 1985-10-03 | 1985-10-03 | Stationary induction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985150889U JPH0749775Y2 (en) | 1985-10-03 | 1985-10-03 | Stationary induction equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6260020U JPS6260020U (en) | 1987-04-14 |
| JPH0749775Y2 true JPH0749775Y2 (en) | 1995-11-13 |
Family
ID=31067444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985150889U Expired - Lifetime JPH0749775Y2 (en) | 1985-10-03 | 1985-10-03 | Stationary induction equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749775Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010087042A (en) * | 2008-09-29 | 2010-04-15 | Toshiba Corp | Stationary induction electric device winding wire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151009A (en) * | 1982-03-03 | 1983-09-08 | Hitachi Ltd | Winding of stationary induction electric apparatus |
-
1985
- 1985-10-03 JP JP1985150889U patent/JPH0749775Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6260020U (en) | 1987-04-14 |
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