JPH0491410A - Gas-insulated transformer - Google Patents
Gas-insulated transformerInfo
- Publication number
- JPH0491410A JPH0491410A JP20625190A JP20625190A JPH0491410A JP H0491410 A JPH0491410 A JP H0491410A JP 20625190 A JP20625190 A JP 20625190A JP 20625190 A JP20625190 A JP 20625190A JP H0491410 A JPH0491410 A JP H0491410A
- Authority
- JP
- Japan
- Prior art keywords
- low
- voltage side
- film
- insulating layer
- insulated 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
- 238000004804 winding Methods 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 10
- 239000004734 Polyphenylene sulfide Substances 0.000 claims abstract description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 9
- 229920006269 PPS film Polymers 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
- Organic Insulating Materials (AREA)
- Insulating Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はガス絶縁変圧器、特に高低圧巻線間に絶縁層
を備えたガス絶縁変圧器に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gas insulated transformer, and particularly to a gas insulated transformer provided with an insulating layer between high and low voltage windings.
第３図は従来のガス絶縁変圧器を示す断面図であり、図
において、（１）は鉄心、（２）は鉄心（１）に巻装さ
れた円筒形の低圧巻線、（３）は低圧巻線（２）の外側
に巻装された円筒形の高圧巻線、（４は高圧巻線（３）
と低圧巻線（２）の間に配置された高低圧間絶縁層で、
一般にポリエチレンテレフタレート（ＰＥＴ）フィルム
あるいはプレスポートにＰＥＴフィルムを張り合せたも
のが用いられている。Figure 3 is a cross-sectional view of a conventional gas insulated transformer. In the figure, (1) is an iron core, (2) is a cylindrical low-voltage winding wound around the iron core (1), and (3) is a cylindrical low-voltage winding wound around the iron core (1). A cylindrical high voltage winding wrapped around the outside of the low voltage winding (2) (4 is the high voltage winding (3)
A high and low voltage insulating layer placed between the and low voltage winding (2),
Generally, a polyethylene terephthalate (PET) film or a PET film laminated to a press port is used.
以上が構造用部材などとともに組立てられて、図示しな
いタンクに収納されており、そのタンクには絶縁ガスが
封入されている。The above components are assembled together with structural members and the like and housed in a tank (not shown), and the tank is filled with insulating gas.
このようなガス絶縁変圧器の運転中において、高低圧巻
線（３）、（２）間には高い電圧がかかる。仮に、高低
圧間絶縁層（イ）を設けずに絶縁ガスのみにより、高低
圧巻線（３）、（２）間の絶縁を行なうとすれば、両巻
線間距離を大きくする必要がある。そこで、絶縁耐力が
強く、かつコンパクトなガス絶縁変圧器にするために、
両巻線間に高低圧間絶縁層（イ）が設けられている。During operation of such a gas insulated transformer, a high voltage is applied between the high and low voltage windings (3) and (2). If the high and low voltage windings (3) and (2) were to be insulated using only an insulating gas without providing the high and low voltage insulating layer (a), it would be necessary to increase the distance between the two windings. Therefore, in order to create a gas-insulated transformer with strong dielectric strength and compactness,
A high and low voltage insulating layer (a) is provided between both windings.
従来のガス絶縁変圧器は以上のように構成されているが
、更に高性能化、小形化が望まれている。Although conventional gas insulated transformers are constructed as described above, it is desired that they have even higher performance and be more compact.
この発明はこのような課題を達成するためになされたも
ので、より絶縁耐力が強く、コンパクトなガス絶縁変圧
器を得ることを目的とする。The present invention was made to accomplish the above-mentioned problems, and its purpose is to obtain a compact gas-insulated transformer with stronger dielectric strength.
この発明に係るガス絶縁変圧器は、高低反間絶縁層を、
ポリフェニレンサルファイド（ｐｐｓ）フィルムの両面
にポリビニールアルコール（ＰＶＡ）フィルムを張り合
わせた複合フィルムで構成したものである。The gas insulated transformer according to the present invention has an insulating layer between high and low sides,
It is constructed from a composite film made by laminating polyvinyl alcohol (PVA) film on both sides of polyphenylene sulfide (pps) film.
この発明におけるガス絶縁変圧器は、高低反間絶縁層を
ＰＰＳフィルムの両面にＰＶＡフィルムを張り合わせた
複合フィルムで構成したので、高低圧巻線間の絶縁耐力
が向上する。In the gas insulated transformer according to the present invention, the insulation layer between the high and low voltage windings is made of a composite film in which PVA films are laminated on both sides of a PPS film, so that the dielectric strength between the high and low voltage windings is improved.
以下、この発明の一実施例について説明する。 An embodiment of the present invention will be described below.
第１図はこの発明の一実施例によるガス絶縁変圧器に用
いられている高低反間絶縁層を示す断面図であって、ガ
ス絶縁変圧器の全体的構成は第３図の場合と同様になっ
ている０図において、（（５）は高低反間絶縁層を構成
する複合フィルム、（６）はＰＰＳフィルム、（２）は
ＰＰＳフィルム（６）の両面に張り合わされたＰＶＡフ
ィルムであり、（６）と（７）で複合フィルム（５］を
構成し、高低反間絶縁層（４）として、円筒形に形成さ
れて高低圧巻線（３）、（２）間に配置されている。FIG. 1 is a sectional view showing the high and low insulation layers used in a gas insulated transformer according to an embodiment of the present invention, and the overall structure of the gas insulated transformer is the same as that in FIG. 3. In Figure 0, ((5) is a composite film constituting an insulating layer between high and low sides, (6) is a PPS film, (2) is a PVA film laminated on both sides of the PPS film (6), (6) and (7) constitute a composite film (5), which is formed into a cylindrical shape and placed between the high and low voltage windings (3) and (2) as an insulating layer (4) between high and low voltages.
第２図は高低圧巻線間の絶縁破壊電圧を示すグラフであ
り、高低圧巻線間に高低反間絶縁層を配置した構成のモ
デルを用い、種々の高低反間絶縁層について試験を行な
ったものである。ＡおよびＢは従来のもので、ＡはＰＥ
Ｔフィルム、ＢはプレスポードにＰＥＴフィルムを張り
合せたものが、それぞれ高低反間絶縁層として用いられ
ている。Figure 2 is a graph showing the breakdown voltage between high and low voltage windings. Using a model with a configuration in which a high and low insulation layer is placed between the high and low voltage windings, tests were conducted on various high and low insulation layers. It is. A and B are conventional, A is PE
The T film and B are made by laminating a PET film to a press board and are used as insulation layers between the high and low sides, respectively.
Ｃはこの発明の一実施例によるもので、第１図に示した
複合フィルム（５）を用いている。絶縁破壊電圧はＡを
１．００とした相対的な絶縁破壊電圧（Ｐ、υ、）で表
わしている。第２図で分かるようにこの発明による複合
フィルムを用いた高低反間絶縁層は、従来のものと比べ
て優れた絶縁耐力を有している。C is an embodiment of the present invention, in which the composite film (5) shown in FIG. 1 is used. The dielectric breakdown voltage is expressed as a relative dielectric breakdown voltage (P, υ,) with A being 1.00. As can be seen in FIG. 2, the high and low dielectric insulation layer using the composite film according to the present invention has superior dielectric strength compared to the conventional one.
以上のようにこの発明によれば、ＰＰＳフィルムの両面
にＰＶＡフィルムを張り合せた複合フィルムで高低反間
絶縁層を構成したので、ガス絶縁変圧器の絶縁耐力が向
上し、また、そのためコンパクトにできる効果がある。As described above, according to the present invention, the insulation layer between the high and low sides is composed of a composite film in which PVA films are laminated on both sides of a PPS film, so that the dielectric strength of the gas insulated transformer is improved, and it is also made more compact. There is an effect that can be done.
第１図はこの発明の一実施例によるガス絶縁変圧器の高
低反間絶縁層を示す断面図、第２図は高低圧巻線間の絶
縁破壊電圧を示すグラフ、第３図は従来のガス絶縁変圧
器を示す断面図である。
図において、（２）は低圧巻線、（３）は高圧巻線、（
４）は高低反間絶縁層、（（５）は複合フィルム、（６
）はＰＰＳフィルム、（７）はＰＶＡフィルムである。
代理人 弁理士 大 岩 増 雄
第１図
第２図
５：事変インフィルム
乙：ＰＰδフィルム
７ ： ＰＶＡ フィルム
第８図Fig. 1 is a cross-sectional view showing the insulation layer between high and low voltage windings of a gas insulated transformer according to an embodiment of the present invention, Fig. 2 is a graph showing the breakdown voltage between high and low voltage windings, and Fig. 3 is a conventional gas insulated transformer FIG. 2 is a sectional view showing a transformer. In the figure, (2) is a low voltage winding, (3) is a high voltage winding, (
4) is a high and low insulation layer, (5) is a composite film, (6
) is a PPS film, and (7) is a PVA film. Agent: Masuo Oiwa, Patent Attorney Figure 1, Figure 2, Figure 5: Incident In-Film B: PPδ Film 7: PVA Film, Figure 8
Claims (1)
た高低圧間絶縁層を備えたものにおいて、高低圧間絶縁
層がポリフェニレンサルファイドフィルムの両面にポリ
ビニールアルコールフィルムを張り合わせた複合フィル
ムから成ることを特徴とするガス絶縁変圧器。In a device equipped with a high-voltage winding, a low-voltage winding, and a high-low voltage insulating layer placed between these two windings, the high-low voltage insulating layer is a composite film in which polyvinyl alcohol film is laminated on both sides of a polyphenylene sulfide film. A gas insulated transformer comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20625190A JPH0491410A (en) | 1990-08-01 | 1990-08-01 | Gas-insulated transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20625190A JPH0491410A (en) | 1990-08-01 | 1990-08-01 | Gas-insulated transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0491410A true JPH0491410A (en) | 1992-03-24 |
Family
ID=16520243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20625190A Pending JPH0491410A (en) | 1990-08-01 | 1990-08-01 | Gas-insulated transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0491410A (en) |
-
1990
- 1990-08-01 JP JP20625190A patent/JPH0491410A/en active Pending
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