JPS6240802B2 - - Google Patents
Info
- Publication number
- JPS6240802B2 JPS6240802B2 JP57202522A JP20252282A JPS6240802B2 JP S6240802 B2 JPS6240802 B2 JP S6240802B2 JP 57202522 A JP57202522 A JP 57202522A JP 20252282 A JP20252282 A JP 20252282A JP S6240802 B2 JPS6240802 B2 JP S6240802B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oils
- molecular weight
- high molecular
- rapeseed oil
- 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
Links
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 15
- 239000010735 electrical insulating oil Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 21
- 235000019198 oils Nutrition 0.000 description 21
- 239000007789 gas Substances 0.000 description 9
- 229930195733 hydrocarbon Natural products 0.000 description 9
- 150000002430 hydrocarbons Chemical class 0.000 description 9
- 239000004215 Carbon black (E152) Substances 0.000 description 8
- 229920002545 silicone oil Polymers 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- -1 dimethylsiloxane Chemical class 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
Landscapes
- Organic Insulating Materials (AREA)
- Transformer Cooling (AREA)
Description
この発明は電気絶縁油としてなたね油を使用し
た油入変圧器に関する。
以前には不燃性の絶縁油として有機塩素系不燃
油（ポリ塩化ジフエニール）が使用されていた
が、これによる環境汚染が問題となり各国で使用
が禁止されている。このため変圧器の難燃化に対
しては絶縁油を使用しない乾式の絶縁方式あるい
は不活性液体や不活性ガスを用いた絶縁方式を採
用することが検討されている。特に小容量の車輛
用変圧器や配電用変圧器などについては、比較的
低粘度（室温で50cSt程度）のシリコーン油（ジ
メチルシロキサン）が一般に使用されている。ま
た、鉱油系の絶縁油のなかで高分子量の炭化水素
からなる油は引火点が高いので、油入変圧器の難
燃化を目的として一部実用化されている。
これら絶縁油の内、シリコーン油は引火点が高
くまた燃焼時には生成した酸化硅素（SiO2）によ
り自己消火性を示すなどの特長をもつているが、
電界安定性（以下ガス特性と称す）についてはガ
ス発生を示すこと、また格価が高いなどの理由か
ら現在のところその用途は低電圧、中小容量の変
圧器に限られている。又、高分子量炭化水素油の
引火点は通常の絶縁油（ASTMD92）による引火
点は130〜170℃程度）に比べ非常に高く、市販さ
れている高分子量炭化水素油の場合250〜300℃程
度である。しかし粘度が極めて高く室温では
100cStを越えるものが一般的である。従つてこの
ような油を使用した変圧器においては冷却特性が
問題となる等の欠点を有している。
この発明は上記のような従来の実情に鑑みてな
されたもので、電気絶縁油としてなたね油を使用
することにより、難燃性およびガス特性の優れた
油入変圧器を提供することを目的とするものであ
る。
この出願の発明者らは研究を重ねた結果、食用
油として供されるなたね油が電気絶縁油として非
常に優れた特性を備えていることを究明した。
以下、このなたね油が電気絶縁油として優れて
いる点を詳細に説明する。
なたね油は、引火点、ガス特性および粘度など
の点で従来のシリコーン油や高分子量炭化水素油
This invention relates to an oil-immersed transformer using rapeseed oil as electrical insulating oil. In the past, organic chlorine-based non-flammable oil (polychlorinated diphenyl) was used as a non-flammable insulating oil, but its use has been banned in many countries due to environmental pollution problems. For this reason, in order to make transformers flame retardant, consideration is being given to adopting a dry insulation method that does not use insulating oil or an insulation method that uses an inert liquid or inert gas. In particular, silicone oil (dimethylsiloxane) with a relatively low viscosity (about 50 cSt at room temperature) is generally used for small-capacity vehicle transformers and power distribution transformers. Further, among mineral oil-based insulating oils, oils made of high molecular weight hydrocarbons have a high flash point, so they are partially put into practical use for the purpose of making oil-immersed transformers flame retardant. Among these insulating oils, silicone oil has features such as a high flash point and self-extinguishing properties due to the silicon oxide (SiO 2 ) produced during combustion.
Regarding electric field stability (hereinafter referred to as gas characteristics), its use is currently limited to low voltage, medium and small capacity transformers because it indicates gas generation and is expensive. In addition, the flash point of high molecular weight hydrocarbon oil is much higher than that of ordinary insulating oil (ASTMD92, which is about 130 to 170°C), and commercially available high molecular weight hydrocarbon oil has a flash point of about 250 to 300°C. It is. However, the viscosity is extremely high at room temperature.
Those exceeding 100cSt are common. Therefore, transformers using such oil have drawbacks such as poor cooling characteristics. This invention was made in view of the above-mentioned conventional circumstances, and aims to provide an oil-immersed transformer with excellent flame retardancy and gas characteristics by using rapeseed oil as an electrical insulating oil. It is something. As a result of repeated research, the inventors of this application found that rapeseed oil, which is used as an edible oil, has very excellent properties as an electrical insulating oil. The advantages of this rapeseed oil as an electrical insulating oil will be explained in detail below. Rapeseed oil is superior to conventional silicone oils and high molecular weight hydrocarbon oils in terms of flash point, gas properties and viscosity.
【表】
表は各種絶縁油の引火点を示すもので、なたね
油はシリコーン油や高分子量炭化水素油より高い
引火点を有している。第１図は各種絶縁油の粘度
特性を示す。
なたね油は通常の鉱物油に比べ、粘度は高いが
市販の高分子量炭化水素油あるいは高温領域にお
けるシリコーン油に比べ粘度は低いことがわか
る。第２図および第３図は、なたね油と高分子量
炭化水素油の誘電正接、tanδおよび抵抗率ρの
温度依存性を示している。なたね油のtanδおよ
びρは絶縁油として十分に使用できるレベルにあ
ることがわかる。またガス特性については第４図
に示す如く、シリコーン油や高分子量炭化水素油
がガス発生を示すのに対し、なたね油は強いガス
吸収性を有しており、電界安定性の面でもすぐれ
ていることがわかる。
尚、このなたね油に脱ロウ作用を施せば、流動
抵抗が小となり冷却特性はさらに向上する。
以上のように、この発明によれば電気絶縁油と
してなたね油を使用することにより、難燃性およ
びガス特性の優れた油入変圧器を提供することが
可能になる。[Table] The table shows the flash points of various insulating oils. Rapeseed oil has a higher flash point than silicone oil or high molecular weight hydrocarbon oil. Figure 1 shows the viscosity characteristics of various insulating oils. It can be seen that rapeseed oil has a higher viscosity than ordinary mineral oil, but lower viscosity than commercially available high molecular weight hydrocarbon oils or silicone oils in high temperature ranges. FIGS. 2 and 3 show the temperature dependence of the dielectric loss tangent, tan δ, and resistivity ρ of rapeseed oil and high molecular weight hydrocarbon oil. It can be seen that the tan δ and ρ of rapeseed oil are at a level sufficient for use as an insulating oil. Regarding gas properties, as shown in Figure 4, while silicone oil and high molecular weight hydrocarbon oil generate gas, rapeseed oil has strong gas absorption properties and is also excellent in terms of electric field stability. I understand that. If this rapeseed oil is subjected to a dewaxing action, the flow resistance will be reduced and the cooling properties will be further improved. As described above, according to the present invention, by using rapeseed oil as the electrical insulating oil, it is possible to provide an oil-immersed transformer with excellent flame retardancy and gas characteristics.
第１図は各種絶縁油の粘度特性を示す図、第２
図および第３図はこの発明に適用されるなたね油
と高分子量炭化水素油との誘電正接および抵抗率
の温度依存性を示す図、第４図は各種絶縁油のガ
ス吸収特性を示す図である。
Figure 1 shows the viscosity characteristics of various insulating oils, Figure 2
Figure 3 and Figure 3 are diagrams showing the temperature dependence of the dielectric loss tangent and resistivity of rapeseed oil and high molecular weight hydrocarbon oil applied to this invention, and Figure 4 is a diagram showing the gas absorption characteristics of various insulating oils. .
Claims (1)
を特徴とする油入変圧器。 ２ なたね油は脱ロウ作用が施されていることを
特徴とする特許請求の範囲第１項記載の油入変圧
器。[Scope of Claims] 1. An oil-immersed transformer characterized by using rapeseed oil as electrical insulating oil. 2. The oil-immersed transformer according to claim 1, wherein the rapeseed oil has been subjected to a dewaxing action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20252282A JPS5991602A (en) | 1982-11-16 | 1982-11-16 | Oil-immersed electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20252282A JPS5991602A (en) | 1982-11-16 | 1982-11-16 | Oil-immersed electric device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5991602A JPS5991602A (en) | 1984-05-26 |
| JPS6240802B2 true JPS6240802B2 (en) | 1987-08-31 |
Family
ID=16458879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20252282A Granted JPS5991602A (en) | 1982-11-16 | 1982-11-16 | Oil-immersed electric device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5991602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011082275A (en) * | 2009-10-05 | 2011-04-21 | Tohoku Electric Power Co Inc | Electric equipment management system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4394594B2 (en) * | 2005-03-16 | 2010-01-06 | 株式会社日本Ａｅパワーシステムズ | Silicone fluid filled static inductor |
| JP5209581B2 (en) * | 2009-08-27 | 2013-06-12 | 北芝電機株式会社 | Transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51118099A (en) * | 1975-04-10 | 1976-10-16 | Matsushita Electric Ind Co Ltd | Condenser |
| JPS55150218A (en) * | 1979-05-11 | 1980-11-22 | Shizuki Electric | Metallized film capacitor |
| JPS5939017A (en) * | 1982-08-27 | 1984-03-03 | 信越半導体株式会社 | Oil-immersed condenser |
-
1982
- 1982-11-16 JP JP20252282A patent/JPS5991602A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51118099A (en) * | 1975-04-10 | 1976-10-16 | Matsushita Electric Ind Co Ltd | Condenser |
| JPS55150218A (en) * | 1979-05-11 | 1980-11-22 | Shizuki Electric | Metallized film capacitor |
| JPS5939017A (en) * | 1982-08-27 | 1984-03-03 | 信越半導体株式会社 | Oil-immersed condenser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011082275A (en) * | 2009-10-05 | 2011-04-21 | Tohoku Electric Power Co Inc | Electric equipment management system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5991602A (en) | 1984-05-26 |
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