JPH0560202B2 - - Google Patents
Info
- Publication number
- JPH0560202B2 JPH0560202B2 JP59217475A JP21747584A JPH0560202B2 JP H0560202 B2 JPH0560202 B2 JP H0560202B2 JP 59217475 A JP59217475 A JP 59217475A JP 21747584 A JP21747584 A JP 21747584A JP H0560202 B2 JPH0560202 B2 JP H0560202B2
- Authority
- JP
- Japan
- Prior art keywords
- insulating material
- fibers
- cylinder
- tap
- glass fiber
- 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
- 239000011810 insulating material Substances 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 239000003365 glass fiber Substances 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 3
- 239000011342 resin composition Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
Landscapes
- Insulating Of Coils (AREA)
- Insulating Bodies (AREA)
- Inorganic Insulating Materials (AREA)
- Glass Compositions (AREA)
- Laminated 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、タツプ切換器用の絶縁材料円筒を
有する電圧調整変圧器に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field] The present invention relates to a voltage regulating transformer with a cylinder of insulating material for a tap changer.
固定タツプ接触子に対する支持構造体を形成す
る絶縁材料円筒が電圧調整変圧器のタツプ切換器
に装備されていることは良く知られている。
It is well known that tap changers of voltage regulating transformers are equipped with cylinders of insulating material which form a support structure for fixed tap contacts.
ドイツ特許第2264341号明細書によれば、この
ような絶縁材料円筒は巻装中空体として形成さ
れ、巻装部分を巻装体の心棒に取り付け、その後
全体を閉じた円筒形にし、エポキシ樹脂を充填す
るため排気されることが知られている。巻装体の
材料としては、連続的な繊維あるいは布地が使用
される。この方法を用いると、機械強度が特に高
く、付加価値の高い絶縁材料円筒を作製できる。
しかし、上記の絶縁材料の筒体では、巻装中空体
の機械応力が問題になるだけでなく、特に円筒壁
の種々の場所に電位の異なるタツプ接触子がある
場合、機械強度に加えて絶縁強度も問題になる。
ここでは、個々のタツプ接触子間の電圧負荷が特
別な役割を演ずる。 According to German Patent No. 2 264 341, such a cylinder of insulating material is formed as a wrapped hollow body, the wrapped part is attached to the core of the wrapped body, and then the whole is shaped into a closed cylinder and coated with epoxy resin. It is known to be evacuated for filling. Continuous fibers or fabrics are used as the material for the wrapping. Using this method, an insulating material cylinder with particularly high mechanical strength and high added value can be produced.
However, with the cylinders made of the above-mentioned insulating materials, not only is the mechanical stress of the wound hollow body a problem, but also the mechanical strength and insulation Strength is also an issue.
Here, the voltage load between the individual tap contacts plays a special role.
タツプ切換器用の絶縁材料円筒を有する電圧調
整変圧器では、配設すべき電位の異なる固定タツ
プ接触子の数が多いため、絶縁材料の絶縁強度に
関して深刻な問題が生じる。連続的な繊維あるい
は布地を巻き付けた絶縁材料円筒では、巻き付け
た繊維が一方のタツプ接触子から他方のタツプ接
触子に直接通じているので、絶縁材料の絶縁強度
が不充分であることを実際上避け得ない。 In voltage regulating transformers with cylinders of insulating material for tap changers, serious problems arise with respect to the dielectric strength of the insulating material due to the large number of fixed tap contacts of different potentials to be arranged. A cylinder of insulating material wrapped with continuous fibers or fabric has a practical effect on the insufficient dielectric strength of the insulating material, since the wrapped fibers lead directly from one tap contact to the other. It's unavoidable.
それ故、この発明の課題は、円筒壁が充分な機
械強度を有すること以外に、特にできる限りどの
方向にも高い絶縁強度を有する、冒頭に述べた電
圧調整変圧器に使用するタツプ切換器の絶縁材料
円筒を更に改良することにある。
It is therefore an object of the invention to provide a tap changer for use in the voltage regulating transformer mentioned at the outset, in which the cylindrical wall has, in addition to sufficient mechanical strength, an insulating strength as high as possible in all directions. The objective is to further improve the insulating material cylinder.
上記の課題は、この発明により、多数の固定タ
ツプ接触子の支持構造体として働く絶縁材料円筒
の壁を前記固定タツプ接触子が貫通し、前記絶縁
材料円筒がガラス繊維の補強部と共に真空下で硬
化可能な樹脂組成物で形成され、前記補強部が方
向不揃い繊維から成る多層巻きのガラス繊維マツ
トで形成され、前記繊維の長さが電位の異なる隣
合つた二つの固定タツプ接触子間の最短間隔より
短い、タツプ切換器用の絶縁材料筒体を有する電
圧調整変圧器によつて解決されている。
The above-mentioned problem is solved by the present invention, in which the fixed tap contacts pass through the wall of a cylinder of insulating material which serves as a support structure for a number of fixed tap contacts, and the cylinder of insulating material together with glass fiber reinforcements is placed under vacuum. It is formed of a curable resin composition, the reinforcing part is formed of a multi-layered glass fiber mat made of fibers with irregular directions, and the length of the fibers is the shortest length between two adjacent fixed tap contacts having different potentials. The solution is a voltage regulating transformer with an insulating material cylinder for the tap changer, which is shorter than the spacing.
この発明は、巻かれたガラス繊維の補強部を有
し、真空下で硬化するエポキシ樹脂の絶縁材料円
筒の壁が一様な絶縁特性を有する絶縁材料と見な
せないと言う事実を前提にしている。このような
材料では、絶縁強度が印加電圧の方向に依存して
いると見なせる。その場合、特に二つの絶縁方向
を配慮する必要がある。つまり、繊維の方向と繊
維の方向に垂直な方向である。繊維方向の絶縁強
度は繊維方向に垂直な方向の絶縁強度より良好で
ない値となる。その原因は、個々の繊維が時とし
て樹脂で確実に濡れないため、電位の異なる二点
間の繊維に沿つて方向性の短絡通路が生じるから
である。ここで提唱するように、巻き付けられた
補強部を、主に多層巻きにされ方向不揃いの繊維
で作製されたガラス繊維のマツトで形成し、繊維
の長さが電位の異なる隣合つた二つの固定タツプ
接触子の最短間隔より短いなら、電位の異なる金
属部品間に直接短絡通路がもはや形成されない。
その場合、大切なことは、短い繊維が方向不揃い
のため、上記の状況がどんな方向にも当てはまる
点にある。円筒壁で電圧の異なるタツプ接触子が
時として不規則に配置されていても、印加する電
圧の方向が繊維に垂直であるか、あるいは繊維に
沿つているかを、もはや特別に留意する必要はな
い。従つて、この発明によつて得られる利点は、
どんな方向に対しても円筒壁の絶縁強度が全体と
して改善される点にある。即ち、円筒壁にタツプ
接触子を配置する場合、補強部の繊維の向きに実
用上特別な配慮を必要としない。
The invention is based on the fact that the walls of an insulating material cylinder of epoxy resin having a reinforcement of wrapped glass fibers and cured under vacuum cannot be considered as an insulating material with uniform insulating properties. There is. In such materials, the dielectric strength can be considered to depend on the direction of the applied voltage. In this case, two insulation directions must be considered in particular. That is, the direction of the fibers and the direction perpendicular to the direction of the fibers. The dielectric strength in the fiber direction has a value that is not better than the dielectric strength in the direction perpendicular to the fiber direction. This is because individual fibers are sometimes not reliably wetted with resin, resulting in directional shorting paths along the fibers between two points at different potentials. As proposed here, the wrapped reinforcing section is mainly formed of a glass fiber mat made of fibers wound in multiple layers and with uneven directions, and the lengths of the fibers are connected to two adjacent fixings with different potentials. If it is shorter than the minimum spacing of the tap contacts, no direct short-circuit paths are formed between metal parts of different potentials.
In that case, the important thing is that the short fibers are oriented in an irregular manner, so the above situation applies to any direction. Even though tap contacts with different voltages are sometimes arranged irregularly on the cylinder wall, it is no longer necessary to pay particular attention to whether the direction of the applied voltage is perpendicular to or along the fiber. . Therefore, the advantages obtained by this invention are:
The point is that the insulation strength of the cylindrical wall is improved as a whole in any direction. That is, when a tap contactor is disposed on a cylindrical wall, there is no need to give special consideration to the orientation of the fibers in the reinforcing portion.
もちろん、この種の絶縁材料円筒の機械強度
は、巻装部分が連続的な繊維で形成されている絶
縁材料円筒に比べて低い。しかし、これは我慢の
できることである。何故なら、上記の絶縁材料円
筒には、例えば内部と外部の間に圧力差が加わら
ないからである。 Of course, the mechanical strength of this type of insulating material cylinder is lower than that of an insulating material cylinder whose wrapping is made of continuous fibers. However, this is something that can be tolerated. This is because, for example, no pressure difference is applied between the inside and the outside of the insulating material cylinder.
Claims (1)
働く絶縁材料円筒の壁を前記固定タツプ接触子が
貫通し、前記絶縁材料円筒がガラス繊維の補強部
と共に真空下で硬化可能な樹脂組成物で形成さ
れ、前記補強部が方向不揃い繊維から成る多層巻
きのガラス繊維マツトで形成され、前記繊維の長
さが電位の異なる隣合つた二つの固定タツプ接触
子間の最短間隔より短いことを特徴とするタツプ
切換器用の絶縁材料円筒を有する電圧調整変圧
器。1. The fixed tap contact passes through the wall of an insulating material cylinder that serves as a support structure for a large number of fixed tap contacts, and the insulating material cylinder is made of a resin composition that can be cured under vacuum together with a glass fiber reinforcement. and the reinforcing portion is formed of a multi-layered glass fiber mat made of fibers with irregular directions, and the length of the fibers is shorter than the shortest distance between two adjacent fixed tap contacts having different potentials. Voltage regulating transformer with a cylinder of insulating material for tap changers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833337954 DE3337954A1 (en) | 1983-10-19 | 1983-10-19 | INSULATING CYLINDER FOR HIGH DIELECTRIC LOADS |
| DE3337954.8 | 1983-10-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60101817A JPS60101817A (en) | 1985-06-05 |
| JPH0560202B2 true JPH0560202B2 (en) | 1993-09-01 |
Family
ID=6212199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59217475A Granted JPS60101817A (en) | 1983-10-19 | 1984-10-18 | Insulating material cylinder of insulating strength |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0141303B1 (en) |
| JP (1) | JPS60101817A (en) |
| AT (1) | ATE62352T1 (en) |
| DE (1) | DE3337954A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3537142A1 (en) * | 1985-10-18 | 1987-04-23 | Reinhausen Maschf Scheubeck | INSULATING PIPE PRODUCED IN FILAMENT WINDING PROCESS |
| DE3630295A1 (en) * | 1986-09-05 | 1988-03-17 | Reinhausen Maschf Scheubeck | Method for producing an insulating material cylinder for high dielectric stresses |
| DE19610113C2 (en) * | 1996-03-14 | 1998-01-22 | Reinhausen Maschf Scheubeck | Process for producing a fiber-reinforced insulating body |
| JP4913392B2 (en) * | 2005-12-02 | 2012-04-11 | ルネサスエレクトロニクス株式会社 | Attenuator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1665556A1 (en) * | 1966-02-18 | 1971-02-11 | Siemens Ag | Cast resin insulator and process for its manufacture |
| US3979709A (en) * | 1975-05-22 | 1976-09-07 | The Chase-Shawmut Company | Electric fuse having a multiply casing of a synthetic - resin glass-cloth laminate |
| DE2845463C3 (en) * | 1978-10-19 | 1982-02-25 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | Load selector for step transformers |
-
1983
- 1983-10-19 DE DE19833337954 patent/DE3337954A1/en active Granted
-
1984
- 1984-10-09 AT AT84112064T patent/ATE62352T1/en not_active IP Right Cessation
- 1984-10-09 EP EP84112064A patent/EP0141303B1/en not_active Expired - Lifetime
- 1984-10-18 JP JP59217475A patent/JPS60101817A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60101817A (en) | 1985-06-05 |
| DE3337954A1 (en) | 1985-05-02 |
| ATE62352T1 (en) | 1991-04-15 |
| EP0141303A2 (en) | 1985-05-15 |
| DE3337954C2 (en) | 1993-02-25 |
| EP0141303A3 (en) | 1988-03-02 |
| EP0141303B1 (en) | 1991-04-03 |
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