JPS634286B2 - - Google Patents
Info
- Publication number
- JPS634286B2 JPS634286B2 JP9439881A JP9439881A JPS634286B2 JP S634286 B2 JPS634286 B2 JP S634286B2 JP 9439881 A JP9439881 A JP 9439881A JP 9439881 A JP9439881 A JP 9439881A JP S634286 B2 JPS634286 B2 JP S634286B2
- Authority
- JP
- Japan
- Prior art keywords
- insulating oil
- added
- derivative
- oil
- amount
- 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
- 239000003921 oil Substances 0.000 claims description 10
- 239000010735 electrical insulating oil Substances 0.000 claims description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 239000013638 trimer Substances 0.000 description 2
- -1 aryl diphenylethane Chemical compound 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
Landscapes
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Organic Insulating Materials (AREA)
Description
この発明は電気的特性の優れた電気絶縁油に関
する。
近年電力需要の増大並びに高電圧化にともない
コンデンサ、変圧器、リアクトル、ケーブルなど
の油入電気機器にあつても、その信頼性、長寿命
化、更には小形軽量化が要求されている。ところ
で、前記油入電気機器は周知の通り、鉱物油(以
下MOと称す。以下同じ。)、アルキルナフタレン
(AN)、アルキルベンゼン(AB)、アリールジフ
エニルエタン(ADE)などの絶縁油を充填して
構成しており、又、これら絶縁油の特性改善も
種々試みられているが、前述の要求を満たすに
は、更にその特性改善が望まれている。
この発明は上述の事柄に鑑みて提案されたもの
で、絶縁油にヘキサフルオロプロピレンオリゴマ
ー(HF)の誘導体を単独若しくは混合したもの
を添加することを要旨とするものである。
前記HFとしては2量体又は3量体があり、2
量体の例を例示すると以下のようなものがある。
「(CF3)2C=CFCF2CF3」
又、3量体の例を例示すると以下のようなもの
がある。
次にこの発明の実施例について詳述する。な
お、以下の実施例において絶縁油に添加したHF
の誘導体a〜fは次のようなものである。
a…C9F17O(CH2CH2O)7C9F17
b…C9F17O(CH2CH2O)22C9F17
C…C9F17O(CH2CH2O)7CH3
d…
のオリゴマーの誘導体
e…C9F17OC6H4COO(CH2CH2O)9H
f…C9F17OC10H6COO(CH2CH2O)10H
前記HFの誘導体a〜fをMO、AN、AB及び
ADEの絶縁油に添加し、その添加割合(wt%)
とtanδ及び破壊電圧との関係を測定した結果を示
すと別表1及び別表2の通りである。なお、同表
には参考のためにHFの誘導体を添加していない
MO、AN、AB及びADEの測定結果も併示した。
又、tanδ及び破壊電圧はJISC−2101によつて試
験測定した。
別表1及び別表2から理解できるように、tanδ
についてみると、HFの誘導体の添加量が0.0005
〜0.5wt%の範囲ではその値はほとんど変化しな
いが、1.0wt%以上になると大きくなる傾向にあ
る。又、破壊電圧についてみると、HFの誘導体
の添加量が0.001〜1.0wt%の範囲で6%以上高く
なり、2.0wt%以上になると低下する傾向にある。
したがつて、HFの誘導体の添加量は、添加する
絶縁油更にはその使用目的などによつて異なる
が、一般的には0.001〜1.0wt%の範囲とするのが
適当である。
以上詳述の通り、この発明によれば絶縁油に少
量のHFの誘導体を添加することにより、その破
壊電圧を向上できる効果を奏する。
The present invention relates to electrical insulating oil with excellent electrical properties. BACKGROUND OF THE INVENTION In recent years, as demand for electricity has increased and voltages have become higher, oil-filled electrical equipment such as capacitors, transformers, reactors, and cables are required to be more reliable, have a longer lifespan, and are also smaller and lighter. By the way, as is well known, the oil-filled electrical equipment is filled with insulating oil such as mineral oil (hereinafter referred to as MO. The same applies hereinafter), alkylnaphthalene (AN), alkylbenzene (AB), aryl diphenylethane (ADE), etc. Although various attempts have been made to improve the characteristics of these insulating oils, further improvement of the characteristics is desired in order to meet the above-mentioned requirements. This invention has been proposed in view of the above-mentioned problems, and its gist is to add hexafluoropropylene oligomer (HF) derivatives alone or in combination to insulating oil. The HF is a dimer or a trimer, and 2
Examples of quantities are as follows. "(CF 3 ) 2 C=CFCF 2 CF 3 " Examples of trimers are as follows. Next, embodiments of the present invention will be described in detail. In addition, in the following examples, HF added to insulating oil
The derivatives a to f are as follows. a...C 9 F 17 O (CH 2 CH 2 O) 7 C 9 F 17 b... C 9 F 17 O (CH 2 CH 2 O) 22 C 9 F 17 C... C 9 F 17 O (CH 2 CH 2 O) 7 CH 3 d… Derivative of oligomer e...C 9 F 17 OC 6 H 4 COO (CH 2 CH 2 O) 9 H f... C 9 F 17 OC 10 H 6 COO (CH 2 CH 2 O) 10 H Derivative of HF a~ f as MO, AN, AB and
Added to ADE insulating oil and its addition ratio (wt%)
The results of measuring the relationship between tan δ and breakdown voltage are shown in Attached Tables 1 and 2. Please note that HF derivatives are not added in the same table for reference.
The measurement results of MO, AN, AB and ADE are also shown.
Further, tan δ and breakdown voltage were tested and measured according to JISC-2101. As can be understood from Attached Tables 1 and 2, tanδ
Looking at this, the amount of HF derivative added is 0.0005
The value hardly changes in the range of ~0.5wt%, but tends to increase when it exceeds 1.0wt%. Further, regarding the breakdown voltage, it tends to increase by 6% or more when the amount of the HF derivative added is in the range of 0.001 to 1.0 wt%, and decreases when the amount is 2.0 wt% or more.
Therefore, although the amount of the HF derivative to be added varies depending on the insulating oil to be added and its purpose of use, it is generally appropriate to range from 0.001 to 1.0 wt%. As detailed above, according to the present invention, by adding a small amount of HF derivative to insulating oil, the breakdown voltage can be improved.
【表】【table】
Claims (1)
ーの誘導体を添加したことを特徴とする電気絶縁
油。1. An electrical insulating oil characterized by adding a hexafluoropropylene oligomer derivative to the insulating oil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9439881A JPS57208005A (en) | 1981-06-17 | 1981-06-17 | Electrically insulating oil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9439881A JPS57208005A (en) | 1981-06-17 | 1981-06-17 | Electrically insulating oil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57208005A JPS57208005A (en) | 1982-12-21 |
JPS634286B2 true JPS634286B2 (en) | 1988-01-28 |
Family
ID=14109151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9439881A Granted JPS57208005A (en) | 1981-06-17 | 1981-06-17 | Electrically insulating oil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57208005A (en) |
-
1981
- 1981-06-17 JP JP9439881A patent/JPS57208005A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57208005A (en) | 1982-12-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4053941A (en) | Oil impregnated electric device | |
JPS634286B2 (en) | ||
US2175877A (en) | Liquid composition | |
US2316587A (en) | Stabilized oil | |
US3959162A (en) | Insulating oil | |
JPH0562405B2 (en) | ||
CA1079952A (en) | Electrical devices containing improved dielectric fluids | |
KR910008567B1 (en) | New compositions its application as an electrical insulator and process for its manufacture | |
US3948789A (en) | Electrical devices containing improved dielectric fluids | |
US4100090A (en) | Electrical devices containing silacyclopentene dielectric fluids | |
US4104184A (en) | Electrical devices containing select vinylsiloxane dielectric fluids | |
US3900416A (en) | Electrical devices containing nitroarylsiloxane dielectric fluid | |
CA1091000A (en) | Electrical devices containing improved dielectric fluids | |
CA1079951A (en) | Electrical devices containing improved dielectric fluids | |
KR101384267B1 (en) | Vegetable insulating oil composition | |
JPS6141959B2 (en) | ||
US2434540A (en) | Capacitor and dielectric therefor | |
JPS61165906A (en) | Insulation oil for medium or high voltage equipment | |
JPH0563883B2 (en) | ||
KR790002103Y1 (en) | Condenser | |
US2512886A (en) | Dielectric composition | |
SU761543A1 (en) | Electroinsulating oil | |
JPS6147200B2 (en) | ||
SU1089629A1 (en) | Electrical insulating compound | |
JPH0560201B2 (en) |