JPH04206310A - Compound of insulation fluid - Google Patents
Compound of insulation fluidInfo
- Publication number
- JPH04206310A JPH04206310A JP33047490A JP33047490A JPH04206310A JP H04206310 A JPH04206310 A JP H04206310A JP 33047490 A JP33047490 A JP 33047490A JP 33047490 A JP33047490 A JP 33047490A JP H04206310 A JPH04206310 A JP H04206310A
- Authority
- JP
- Japan
- Prior art keywords
- perfluorocarbon
- lube
- fluorocarbon
- compound
- added
- 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.)
- Granted
Links
- 238000009413 insulation Methods 0.000 title abstract description 4
- 150000001875 compounds Chemical class 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 title abstract 2
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 12
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000002655 kraft paper Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ICHAFDYFHDORHU-UHFFFAOYSA-N FC1=C(C(C(O1)(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)F)(F)F)F Chemical compound FC1=C(C(C(O1)(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)F)(F)F)F ICHAFDYFHDORHU-UHFFFAOYSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- -1 polytrifluoromonochloroethylene Polymers 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010689 synthetic lubricating oil Substances 0.000 description 1
Landscapes
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、流動帯電の防止に優れた絶縁液体に関するも
のである。とくに本発明は、パーフルオロカーボンとセ
ルロース系絶縁物との間に生ずる流動帯電を防止する絶
縁液体組成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an insulating liquid that is excellent in preventing flow charging. In particular, the present invention relates to an insulating liquid composition that prevents flow charging between a perfluorocarbon and a cellulosic insulator.
従来、変圧器等の電気機器には、絶縁と冷却を行うため
、液体媒体が使用されている。とくに、パーフルオロカ
ーボンはその優れた電気特性と化学的安定性のために、
電気機器の冷媒として広く使用されている。電気機器の
冷却効率を上げるためには、液体の循環速度を上げる方
が有利であり、機器全体をコンパクトにすることにもな
る。Traditionally, liquid media have been used in electrical equipment such as transformers to provide insulation and cooling. In particular, perfluorocarbons are highly valued due to their excellent electrical properties and chemical stability.
Widely used as a refrigerant in electrical equipment. In order to increase the cooling efficiency of electrical equipment, it is advantageous to increase the circulation speed of the liquid, which also makes the entire equipment more compact.
しかしながら、固体と絶縁液体とが接触し、絶縁液体が
流動するような状況では流動帯電が生し、その程度は液
体の流速の増加とともにそれ増加する。通常油入り機器
の場合、絶縁紙やプレスホードが絶縁のために使用され
ているので、紙と絶縁液体との接触による流動帯電が問
題となる。However, in situations where a solid and an insulating liquid come into contact and the insulating liquid flows, flow charging occurs, and its degree increases as the flow rate of the liquid increases. In the case of oil-filled equipment, insulating paper or pressed hoard is usually used for insulation, so flow charging due to contact between the paper and the insulating liquid poses a problem.
パーフルオロカーボンも電気抵抗が高いので、循環速度
が大きくなると流動帯電が起きる可能性がある。本発明
は、上記のような課題を解決するためになされたもので
、流動帯電をできるだけ小さくした、パーフルオロカー
ボンを主成分とする絶縁液体組成物を提供することを目
的とするものである。Perfluorocarbons also have high electrical resistance, so high circulation rates can cause flow charging. The present invention was made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an insulating liquid composition containing perfluorocarbon as a main component, in which flow charging is minimized.
すなわち本発明は、パーフルオロカーボンにフロンルー
ブを０．０１〜０．５重量％添加したことを特徴とする
絶縁液体組成物を提供することによリ、前記の課題を解
決しようとするものである。That is, the present invention aims to solve the above-mentioned problems by providing an insulating liquid composition characterized by adding 0.01 to 0.5% by weight of Freon Lube to perfluorocarbon.
以下本発明についてさらに説明する。The present invention will be further explained below.
本発明の絶縁液体組成物に使用するパーフルオロカーホ
ンとしては、種々のものが使用できるが、とくに好まし
いものはパーフルオロブチルテトラフルオロフランであ
る。Various perfluorocarbons can be used in the insulating liquid composition of the present invention, but perfluorobutyltetrafluorofuran is particularly preferred.
また、本発明の絶縁液体組成物において、パーフルオロ
カーボンに添加するフロンルーブは、合成潤滑油系のも
のであり、好ましくは、ポリトリフロロモノクロロエチ
レンが使用される。Furthermore, in the insulating liquid composition of the present invention, the Freon lubricant added to the perfluorocarbon is a synthetic lubricating oil type, and polytrifluoromonochloroethylene is preferably used.
フロンルーブ添加の副台は、絶縁液体組成物全量に体し
て、０．０１重量％という極めて少量であっても効果が
あるのは、驚くべきことである。It is surprising that the addition of Freon Lube is effective even at a very small amount of 0.01% by weight based on the total amount of the insulating liquid composition.
フロンルーブの配合量については上限はとくにないが、
０．１重量％ですでに効果としては飽和す −るので
、それ以上添加しても、帯電防止の効果は向上しない。There is no upper limit for the amount of Freon Lube added, but
The effect is already saturated at 0.1% by weight, so adding more than that will not improve the antistatic effect.
したがって、通常は０．０１〜０．５重量％、好ましく
は０．０５〜０．１重量％である。Therefore, it is usually 0.01 to 0.5% by weight, preferably 0.05 to 0.1% by weight.
本発明における絶縁液体組成物において、フロンルーブ
の添加が何故流動帯電の防止に効果があるかは、定かで
はないが、極めて少量の添加で帯電を防止することがで
き、パーフルオロカーボンの使用時の流速を高めること
がてきる。In the insulating liquid composition of the present invention, it is not clear why the addition of fluorocarbon lube is effective in preventing flow electrification, but it is possible to prevent electrification with the addition of a very small amount, and the flow rate when perfluorocarbon is used is can be increased.
本発明におけるフロンルーブの添加濃度と静電気発生防
止効果の関係を調べるために、以下の実験を行った。内
径３．５肩肩、長さ３００ｉｚのステンレス管の内側に
沿うように乾燥したクラフト紙を挿入し、パーフルオロ
カーボン１００ｍｆを１００ｚｚ／秒の流速で流した時
の流動電流量を測定した。In order to investigate the relationship between the added concentration of Freon Lube and the effect of preventing static electricity generation in the present invention, the following experiment was conducted. Dry kraft paper was inserted along the inside of a stainless steel tube with an inner diameter of 3.5 mm and a length of 300 Hz, and the amount of flowing current was measured when 100 mf of perfluorocarbon was flowed at a flow rate of 100 zz/sec.
本実験においては、クラフト紙の表面でプラスとマイナ
スの電荷が分離し、クラフト紙にマイナスの電荷が多く
蓄積すると、マイナスの流動電流が流れる。したがって
、プラスとマイナスの電荷がバランスした、流動電流ゼ
ロの状態が最適である。In this experiment, positive and negative charges are separated on the surface of the kraft paper, and when a large amount of negative charges accumulate on the kraft paper, a negative flowing current flows. Therefore, a state where the positive and negative charges are balanced and the flowing current is zero is optimal.
測定結果を第１図に示す。パーフルオロカーボンのみの
絶縁液体では−１，５ＰＡであるが、これにフロンルー
ブを少量添加すると、はぼ０になる。The measurement results are shown in Figure 1. An insulating liquid containing only perfluorocarbon has a value of -1.5 PA, but when a small amount of Freon Lube is added to it, the value becomes almost 0.
フロンルーブＦＬ６００を５％という高濃度て添加した
場合でも、流動電流はほぼ０てあった。Even when Freon Lube FL600 was added at a high concentration of 5%, the flowing current was almost 0.
なお第１図において、フロンルーブＦＬ５００、同６０
０、同７００および同８００は分子量（粘度〉の差のみ
である。In addition, in Fig. 1, Freon Lube FL500 and FL60
0, 700 and 800 differ only in molecular weight (viscosity).
このように本発明の絶縁液体組成物におけるフロンルー
ブの使用量は、比較的広い範囲で効果があるので、添加
濃度についてはとくに限定するものではないが、できる
だけ少ない添加量であるほど経済的であるので、添加量
は組成物全体に対して、０．０１〜０．５重量％、好ま
しくは０．０５〜０．１重量％である。As described above, the amount of Freon Lube used in the insulating liquid composition of the present invention is effective over a relatively wide range, so there is no particular limitation on the concentration, but it is more economical to use as little amount as possible. Therefore, the amount added is 0.01 to 0.5% by weight, preferably 0.05 to 0.1% by weight, based on the entire composition.
フロンルーブは、その化学組成および粘度等に応じて、
種々のグレードがあるが、本発明の目的に対してはいず
れも有効である。Depending on its chemical composition and viscosity, Freon Lube has
There are various grades, all of which are effective for the purpose of the present invention.
以上のように、本発明の絶縁液体組成物はパーフルオロ
カーボンに少量のフロンルーブを添加してなるのて、こ
れを冷却媒体として使用するとき流動帯電の発生が少な
いので、流速を上げることがてき、効率の良い電気機器
を製造することができる。As described above, since the insulating liquid composition of the present invention is made by adding a small amount of fluorocarbon to perfluorocarbon, when it is used as a cooling medium, there is less occurrence of flow charge, so the flow rate can be increased. It is possible to manufacture efficient electrical equipment.
第１図は、本発明の実施例におけるフロンルーブの添加
濃度と流動電流の関係を示す図である。FIG. 1 is a diagram showing the relationship between the added concentration of Freon Lube and the flowing current in an example of the present invention.
Claims (1)
．５重量％添加したことを特徴とする、絶縁液体組成物
。0.01 to 0 Freon Lube to perfluorocarbon
．． An insulating liquid composition characterized by adding 5% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33047490A JPH0815013B2 (en) | 1990-11-30 | 1990-11-30 | Insulating liquid composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33047490A JPH0815013B2 (en) | 1990-11-30 | 1990-11-30 | Insulating liquid composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04206310A true JPH04206310A (en) | 1992-07-28 |
| JPH0815013B2 JPH0815013B2 (en) | 1996-02-14 |
Family
ID=18233030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33047490A Expired - Lifetime JPH0815013B2 (en) | 1990-11-30 | 1990-11-30 | Insulating liquid composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0815013B2 (en) |
-
1990
- 1990-11-30 JP JP33047490A patent/JPH0815013B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0815013B2 (en) | 1996-02-14 |
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