JPS63248023A - Manufacture of dry bushing - Google Patents
Manufacture of dry bushingInfo
- Publication number
- JPS63248023A JPS63248023A JP7975587A JP7975587A JPS63248023A JP S63248023 A JPS63248023 A JP S63248023A JP 7975587 A JP7975587 A JP 7975587A JP 7975587 A JP7975587 A JP 7975587A JP S63248023 A JPS63248023 A JP S63248023A
- Authority
- JP
- Japan
- Prior art keywords
- prepreg
- dry
- manufacturing
- insulating member
- dry bushing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000004020 conductor Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000003822 epoxy resin Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000013007 heat curing Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、乾式ブッシングの製造法に関するものであ
シ、とシわけ、中心導体と同心状に絶縁部材と電極部材
が交互に配置されている乾式ブッシングの製造法に関す
るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a dry bushing, in which insulating members and electrode members are alternately arranged concentrically with a center conductor. This paper relates to a method for manufacturing dry bushings.
第３図は、例えば特公昭６１−６０５２２号公報に示さ
れた従来の製法によって得られた乾式ブッシングを示し
、図において、中心導体（１）の外周には中心導体（１
）と同心状に交互に絶縁部材ｆ２＋と電極部材（３）と
が配置されている。絶縁部材（２）は電極部材（３）相
互間を層間絶縁するもので、層間絶縁用の含浸基材とし
て絶縁部、ポリエステル不織布等の合成礒維、ガラス繊
維等が用いられている。電極部材（３）は例えばアルミ
箔からなり、複数層同心状に配置されてコンデンサを形
成している。含浸樹脂（４）は例えばエポキシ樹脂であ
り、真空含浸処理によシ中心導体（１）と絶縁部材（２
）と電極部材（３）とを一体にモールド成形するもので
ある。FIG. 3 shows a dry bushing obtained by the conventional manufacturing method disclosed in, for example, Japanese Patent Publication No. 61-60522. In the figure, the outer periphery of the center conductor (1) is
) and an insulating member f2+ and an electrode member (3) are arranged alternately and concentrically. The insulating member (2) provides interlayer insulation between the electrode members (3), and an insulating portion, synthetic fiber such as polyester nonwoven fabric, glass fiber, etc. are used as an impregnated base material for interlayer insulation. The electrode member (3) is made of aluminum foil, for example, and has a plurality of layers arranged concentrically to form a capacitor. The impregnated resin (4) is, for example, an epoxy resin, and the central conductor (1) and the insulating member (2) are formed by vacuum impregnation treatment.
) and the electrode member (3) are integrally molded.
第４図は第３図に示した従来の乾式ブッシングの製造工
程を示している。FIG. 4 shows the manufacturing process of the conventional dry bushing shown in FIG.
次に以上の構成になる乾式ブッシングの製造方法を説明
する。’４Ｆ状の？、縁部材（２）と電極部材（３）と
を、中心導体（１）の外周部に交互に巻回してコンデン
サコアな形成する。Next, a method of manufacturing the dry bushing having the above structure will be explained. '4F shape? The edge member (2) and the electrode member (3) are alternately wound around the outer periphery of the center conductor (1) to form a capacitor core.
このコンデンサコアを加熱乾燥後、金型内にセットし、
含浸樹脂（４）を真空含浸処理する。その後加熱硬化し
て一体化する。After heating and drying this capacitor core, set it in a mold,
The impregnated resin (4) is subjected to vacuum impregnation treatment. After that, they are heated and cured to become one piece.
以上のような従来の乾式ブッシングでは、コンデンサコ
ア巻きに半日、加熱乾燥に１日、樹脂含浸に半日、さら
に加熱硬化に３日とコンデンサコア巻きから加熱硬化完
了まで５日間を要し、生産性に劣るという問題点があっ
た。With conventional dry bushings as described above, it takes half a day to wrap the capacitor core, one day to heat dry, half a day to impregnate with resin, and three days to heat cure, which takes five days from winding the capacitor core to completing heat curing, which reduces productivity. There was a problem that it was inferior to
また、電極部材（３）として用いられるアルミ箔などの
導体と含浸樹脂（４）、例えばエポキシ樹脂との密着性
ないし接着性が乏しいことなどが原因となって樹脂金没
後の硬化収縮や実際使用時の温度上昇あるいは環境の温
度変化等の熱応力によシ、電極部材（３）の界面に剥離
が起シ、部分放電が発生し、耐電圧性能を低下する問題
点があった。In addition, poor adhesion or adhesion between the conductor such as aluminum foil used as the electrode member (3) and the impregnated resin (4), such as epoxy resin, may cause curing shrinkage after the resin is immersed or actual use. There is a problem in that due to thermal stress such as temperature rise during operation or environmental temperature change, peeling occurs at the interface of the electrode member (3), partial discharge occurs, and the withstand voltage performance deteriorates.
この発明は上記のような問題点を解消するため罠なされ
たもので、乾式ブッシングの生産性を向上できるととも
に、耐電圧性能にも優れた乾式ブッシングの製造法を得
ることを目的とする。This invention has been made to solve the above-mentioned problems, and aims to provide a method for manufacturing dry bushings that can improve the productivity of dry bushings and has excellent withstand voltage performance.
この発明に係る乾式ブッシングの製造法は、絶縁部材と
してのプリプレグ状絶縁部材を用い、中心導体の外周部
にプリプレグ状絶縁部材と電極部材とを同心状に交互に
配置した後、加熱成形するものである。The method for manufacturing a dry bushing according to the present invention uses a prepreg-like insulating member as an insulating member, and after arranging prepreg-like insulating members and electrode members alternately and concentrically around the outer periphery of a central conductor, the process is performed by heating and forming the bushings. It is.
この発明においては、絶縁部材としてプリプレグ状絶縁
部材を用いるので、コンデンサコアｌ後加熱成形するだ
けで乾式ブッシングが得られるので、樹脂含浸工程や、
加熱硬化などの工程が省かれるものである。In this invention, since a prepreg-like insulating member is used as the insulating member, a dry bushing can be obtained by simply heating and forming the capacitor core.
This eliminates steps such as heat curing.
以下、この発明の一実施例を図について説明する。第１
図において、中心導体（１）、電極部材（３）は第３図
における従来のものと同様である。（５）はプリプレグ
状絶縁部材であり、種々のものを用いることができる。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, the center conductor (1) and electrode member (3) are the same as the conventional one shown in FIG. (5) is a prepreg-like insulating member, and various types can be used.
好ましく用いられるものとしては、例えばポリアミド紙
の表面をエポキシ樹脂で処理した後プリプレグ状に形成
したエポキシプリプレグボリアミド紙、ガラス布、ポリ
エステル布等の表面にマイカ片を重ね合せエポキシ樹脂
で処理した後プリプレグ状に形成したエポキシプリプレ
グマイカシートなどを挙げることができる。Preferably used materials include, for example, epoxy prepreg polyamide paper formed into a prepreg after the surface of polyamide paper is treated with epoxy resin, mica pieces are laminated on the surface of glass cloth, polyester cloth, etc., and then treated with epoxy resin. Examples include an epoxy prepreg mica sheet formed into a prepreg shape.
第２図は第１図に示した実施例の乾式ブッシングの製造
工程を示している。FIG. 2 shows the manufacturing process of the dry bushing according to the embodiment shown in FIG.
次に製造方法について説明する。帯状のプリプレグ状絶
縁部材（５）と電極部材（３）とを中心導体（１）の外
周に交互に巻回してコンデンサコアな形成する。Next, the manufacturing method will be explained. A strip-like prepreg-like insulating member (5) and an electrode member (3) are alternately wound around the outer periphery of the central conductor (1) to form a capacitor core.
このコンデンサコアを成形型にセットし、加熱するとプ
リプレグ状樹脂が流動して硬化して一体化する。When this capacitor core is placed in a mold and heated, the prepreg resin flows, hardens, and becomes integrated.
この場合、コンデンサコア巻きに半日、型組から加熱硬
化までに１日、合計１．５日という短時日で製造するこ
とができた。In this case, it was possible to manufacture the product in a short time of 1.5 days, including half a day for winding the capacitor core and one day for forming the mold and curing by heating.
プリプレグ状絶縁部材（５）として、エポキシプリプレ
グマイカシートを用いたものは、耐部分放電性に優れて
おυ、電極部材（３）の界面が剥離し°て部分放電が発
生しても、耐電極性能は維持されることが確認された。An epoxy prepreg mica sheet used as the prepreg-like insulating member (5) has excellent partial discharge resistance, and is resistant even if the interface of the electrode member (3) peels off and a partial discharge occurs. It was confirmed that the electrode performance was maintained.
このものは、製品寿命および信頼度を顕著に向上させる
ものである。This significantly increases product life and reliability.
以上のように、この発明によれば、絶縁部材としてプリ
プレグ状絶縁部材を用いコンデンサコア巻き後加熱成形
するように構成したので、製造工程数が低減され生産性
を向上できるという効果がある。As described above, according to the present invention, since the prepreg-like insulating member is used as the insulating member and the capacitor core is wound and then heat-formed, the number of manufacturing steps can be reduced and productivity can be improved.
第１図はこの発明の一実施例によって得られた乾式ブッ
シングを示す縦断面図、第２図はこの発明の一実施例の
製造工程図、第３図は従来の乾式ブッシングの縦断面図
、第４図は従来の乾式ブッシングの製造工程図である。
（１）・・中心導体、（２）・・絶縁部材、（３）・・
電極部材、（４）・・含浸樹脂、（５）・・プリプレグ
状絶縁部材。
なお、各図中、同一符号は同−又は相当部分を示す。
児２図
篤４図
手続補正書
昭和６２＋ 輸２７日FIG. 1 is a longitudinal sectional view showing a dry bushing obtained by an embodiment of the present invention, FIG. 2 is a manufacturing process diagram of an embodiment of the invention, and FIG. 3 is a longitudinal sectional view of a conventional dry bushing. FIG. 4 is a manufacturing process diagram of a conventional dry bushing. (1)...Center conductor, (2)...Insulating member, (3)...
Electrode member, (4)...impregnated resin, (5)...prepreg-like insulating member. In each figure, the same reference numerals indicate the same or corresponding parts. Child 2 Figure Atsushi 4 Procedural Amendment Document 1986 + Export 27th
Claims (2)
とを前記中心導体と同心状に交互に配置した後、加熱成
形することを特徴とする乾式ブッシングの製造法。(1) A method for manufacturing a dry bushing, which comprises arranging prepreg-like insulating members and electrodes concentrically and alternately on the outer periphery of a center conductor, and then heat-forming the same.
カシートであることを特徴とする特許請求の範囲第１項
記載の乾式ブッシングの製造法。(2) The method for manufacturing a dry bushing according to claim 1, wherein the prepreg-like insulating member is an epoxy prepreg mica sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7975587A JPS63248023A (en) | 1987-04-02 | 1987-04-02 | Manufacture of dry bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7975587A JPS63248023A (en) | 1987-04-02 | 1987-04-02 | Manufacture of dry bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63248023A true JPS63248023A (en) | 1988-10-14 |
Family
ID=13699036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7975587A Pending JPS63248023A (en) | 1987-04-02 | 1987-04-02 | Manufacture of dry bushing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63248023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04255617A (en) * | 1991-02-06 | 1992-09-10 | Ngk Insulators Ltd | Stacked insulator |
-
1987
- 1987-04-02 JP JP7975587A patent/JPS63248023A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04255617A (en) * | 1991-02-06 | 1992-09-10 | Ngk Insulators Ltd | Stacked insulator |
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