JPH067443B2 - Oil-filled electrical equipment - Google Patents
Oil-filled electrical equipmentInfo
- Publication number
- JPH067443B2 JPH067443B2 JP59279046A JP27904684A JPH067443B2 JP H067443 B2 JPH067443 B2 JP H067443B2 JP 59279046 A JP59279046 A JP 59279046A JP 27904684 A JP27904684 A JP 27904684A JP H067443 B2 JPH067443 B2 JP H067443B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oxygen index
- electrical equipment
- filled electrical
- oxygen
- 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
Description
【発明の詳細な説明】 産業上の利用分野 本発明は難燃性電気絶縁油を使用した防災上より安全な
油入電気機器に関するものである。TECHNICAL FIELD The present invention relates to an oil-filled electrical device that uses flame-retardant electrical insulating oil and is safer for disaster prevention.
従来の技術 従来、油入電気機器例えばコンデンサ、ケーブル、変圧
器などにおいて、次の構造式で示されるアリールフェニ
ールエタンの１種または２種以上の混合物が電気絶縁油
（以下絶縁油という）として使用されている このアリールフェニールエタンは塩化ビフェニール絶縁
油の代替油としてコンデンサを中心に使用されている
が、塩化ビフェニールと異なって不燃性ではなく、むし
ろ可燃性油である。2. Description of the Related Art Conventionally, in oil-filled electrical equipment such as capacitors, cables, and transformers, one or a mixture of two or more arylphenylethanes represented by the following structural formulas is used as electrical insulating oil (hereinafter referred to as insulating oil). Has been This aryl phenyl ethane is mainly used as an alternative oil for a chloride biphenyl insulating oil in capacitors, but unlike biphenyl chloride, it is not a non-flammable oil but rather a flammable oil.
発明が解決しようとする問題点 近年電気機器の防災対策は一段と厳しく見直されてお
り、油入電気機器に使用する電気絶縁油を難燃化する必
要が高まってきた。Problems to be Solved by the Invention In recent years, disaster prevention measures for electric devices have been reviewed more severely, and it has become necessary to make an electrically insulating oil used for oil-filled electric devices flame-retardant.
問題点を解決するための手段 本発明は前記したアリールフェニールエタンに植物性の
菜種油または大豆油を55vol％以上を混合することによ
って燃焼性を改良した酸素指数が２１以上である難燃性
絶縁油を使用した油入電気機器を提供しようとするもの
である。MEANS FOR SOLVING THE PROBLEMS The present invention provides a flame-retardant insulating oil having an oxygen index of 21 or more, which has improved flammability by mixing 55 vol% or more of vegetable rapeseed oil or soybean oil with the above aryl phenyl ethane. The present invention intends to provide an oil-filled electric device using.
実施例 以下本発明を実験データーに基づき説明する。Examples The present invention will be described below based on experimental data.
第１図は酸素指数法燃焼性試験装置の燃焼部で、１はガ
ラスカラム、２はガラスカラム１内に収納されたガラス
ビーズ、３は内径が３mmのガラス管で、一端はガラスカ
ラム１内に収納し、他端は油だめ４に接続されており、
この油だめ４とガラス管３には油５が満たされている。
６はドレンで、ガラス管３に接続されており、その接続
箇所にはコック８が設けられている。また７はドレンで
油だめ４のところに設けられている。９は炎である。FIG. 1 is a combustion section of an oxygen index method flammability test device, 1 is a glass column, 2 is glass beads stored in the glass column 1, 3 is a glass tube having an inner diameter of 3 mm, and one end is in the glass column 1. The other end is connected to the oil sump 4,
The oil sump 4 and the glass tube 3 are filled with oil 5.
A drain 6 is connected to the glass tube 3, and a cock 8 is provided at the connection point. Also, 7 is a drain provided at the sump 4. 9 is a flame.
絶縁油の燃焼性は定量的な評価ができる酸素指数法で試
験した。The flammability of insulating oil was tested by the oxygen index method, which enables quantitative evaluation.
酸素指数法は酸素と窒素を用い燃焼部雰囲気の酸素濃度
を調節し絶縁油が着火し燃焼が持続する最低の酸素濃度
を求め、その酸素指数として表す方法である。高分子材
料の燃焼性試験方法（ＪＩＳ Ｋ ７２０１）に適用さ
れており、その測定装置を用いて燃焼部を第１図に示す
ように液体用に改良して着火後燃焼が３分間持続する酸
素指数を測定した。The oxygen index method is a method in which the oxygen concentration in the atmosphere of the combustion part is adjusted by using oxygen and nitrogen, and the minimum oxygen concentration at which the insulating oil ignites and combustion continues is obtained and expressed as the oxygen index. It is applied to the flammability test method for polymer materials (JIS K 7201), and its measuring device was used to improve the burning part for liquid as shown in FIG. The index was measured.
前記アリールフェニールエタンの酸素指数は18.5〜20の
範囲にあり、空気の酸素濃度が21以下で空気中で燃焼す
ることを示している。これに対し植物性の菜種油および
大豆油は酸素指数が26.5および27.0と21以上を示し、自
己消火性油である。The oxygen index of the arylphenyl ethane is in the range of 18.5 to 20, indicating that it burns in air when the oxygen concentration of air is 21 or less. On the other hand, vegetable rapeseed oil and soybean oil are self-extinguishing oils with oxygen indexes of 26.5, 27.0 and 21 or more.
この植物性油を混合することによって難燃性となること
が期待される。It is expected that flame retardancy will be obtained by mixing this vegetable oil.
第２図はアリールフェニールエタンと菜種油または大豆
油との混合油の酸素指数を示したものである。アリール
フェニールエタンに菜種油または大豆油を混合していく
と、酸素指数が高くなり、ほぼ55vol％以上混合すると2
1以上となり、難燃性となることが判る。菜種油又は大
豆油の混合割合の上限は、これら植物油の動粘度がアリ
ールフェニールエタンより高いため、混合油の適正粘度
を考慮して決めればよい。またこれら植物油はオレイン
酸、リノール酸、リノレイン酸などの鎖状不飽和炭化水
素を含有しているので、（例として脂肪酸組成を表を示
す）ガス吸収性がすぐれているが、アリールフェニール
エタンより低いため、このことも考慮して混合比を決め
ればよい。FIG. 2 shows the oxygen index of a mixed oil of arylphenylethane and rapeseed oil or soybean oil. When rapeseed oil or soybean oil was mixed with aryl phenyl ethane, the oxygen index increased, and when mixed at 55 vol% or more, 2
It can be seen that it becomes 1 or more and flame retardant. The upper limit of the mixing ratio of rapeseed oil or soybean oil may be determined in consideration of the proper viscosity of the mixed oil, because the kinematic viscosity of these vegetable oils is higher than that of arylphenylethane. Also, since these vegetable oils contain chain unsaturated hydrocarbons such as oleic acid, linoleic acid, and linolenic acid, they have excellent gas absorption properties (for example, the fatty acid composition is shown in the table), but they are better than aryl phenylethane. Since it is low, the mixing ratio may be determined in consideration of this.
菜種油および大豆油は食用としてそれぞれＪＡＳ規格第
２９条および第２３条に示されるものでよいが、さらに
活性白土および活性アルミナなどで精製すると一般的な
電気特性全酸価が向上し、絶縁油として問題なく使用で
きるものである。 Although rapeseed oil and soybean oil may be those edible according to Article 29 and Article 23 of JAS Standard, respectively, further refining with activated clay and activated alumina will improve the general electrical characteristic total acid value, and as an insulating oil. It can be used without problems.
発明の効果 以上述べたように前記アリールフェニールエタンに植物
性の菜種油または大豆油を55vol％以上混合した電気絶
縁油の酸素指数が２１以上であると、空気中で自己消火
性の極めて高い難燃性絶縁油が得られ、油入電気機器の
安全性が高まる効果がある。EFFECTS OF THE INVENTION As described above, when the oxygen index of the electrically insulating oil obtained by mixing 55% by volume or more of the above-mentioned arylphenylethane with vegetable rapeseed oil or soybean oil, the oxygen index is 21 or more, the flame retardancy is extremely high in self-extinguishing property in the air. Is obtained, which has the effect of increasing the safety of oil-filled electrical equipment.
またこれら植物性の油は食用油として使用されているも
のであり、衛生上極めて安全な物質であることはいうま
でもない。Needless to say, these vegetable oils are used as edible oils and are extremely safe substances for hygiene.
第１図は酸素指数法燃焼性試験装置の燃焼部の説明図、
第２図はアリールフェニールエタンに植物油の混合割合
に基づく混合油の燃焼性を示す酸素指数特性図である。FIG. 1 is an explanatory diagram of a combustion part of an oxygen index method flammability test device,
FIG. 2 is an oxygen index characteristic diagram showing the flammability of the mixed oil based on the mixing ratio of the aryl phenyl ethane with the vegetable oil.
Claims (1)
電気絶縁油に植物性の菜種油または大豆油を５５ｖｏ
ｌ．％以上混合してなる酸素指数が２１以上である混合
油を電気絶縁油として使用したことを特徴とする油入電
気機器。1. 55 voll of rapeseed oil or soybean oil of vegetable origin to the electrical insulating oil of arylphenylethane consisting of one or more kinds
l. %, The mixed oil having an oxygen index of 21 or more is used as an electric insulating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59279046A JPH067443B2 (en) | 1984-12-27 | 1984-12-27 | Oil-filled electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59279046A JPH067443B2 (en) | 1984-12-27 | 1984-12-27 | Oil-filled electrical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61156605A JPS61156605A (en) | 1986-07-16 |
| JPH067443B2 true JPH067443B2 (en) | 1994-01-26 |
Family
ID=17605642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59279046A Expired - Lifetime JPH067443B2 (en) | 1984-12-27 | 1984-12-27 | Oil-filled electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067443B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6037537A (en) * | 1995-12-21 | 2000-03-14 | Cooper Industries, Inc. | Vegetable oil based dielectric coolant |
| US6398986B1 (en) | 1995-12-21 | 2002-06-04 | Cooper Industries, Inc | Food grade vegetable oil based dielectric fluid and methods of using same |
| EP1304704B1 (en) * | 1995-12-21 | 2005-06-15 | Cooper Industries, Inc. | Vegetable oil based dielectric coolant |
| US5949017A (en) | 1996-06-18 | 1999-09-07 | Abb Power T&D Company Inc. | Electrical transformers containing electrical insulation fluids comprising high oleic acid oil compositions |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5133278A (en) * | 1974-09-13 | 1976-03-22 | Osame Kogyo Kk | RYUTAIAT SUSHIRINDA |
| JPS551642A (en) * | 1978-06-20 | 1980-01-08 | Hitachi Maxell Ltd | Magnetic recording medium |
| JPS5942705A (en) * | 1982-08-31 | 1984-03-09 | 呉羽化学工業株式会社 | Electrically insulating oil |
| JPS59128708A (en) * | 1983-01-13 | 1984-07-24 | 三菱電機株式会社 | Oil-immersed electric device |
| JPS59194307A (en) * | 1983-04-19 | 1984-11-05 | 株式会社指月電機製作所 | Metal evaporated polypropylene film condenser |
-
1984
- 1984-12-27 JP JP59279046A patent/JPH067443B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61156605A (en) | 1986-07-16 |
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