JP4502680B2 - 電気絶縁油 - Google Patents
電気絶縁油 Download PDFInfo
- Publication number
- JP4502680B2 JP4502680B2 JP2004090739A JP2004090739A JP4502680B2 JP 4502680 B2 JP4502680 B2 JP 4502680B2 JP 2004090739 A JP2004090739 A JP 2004090739A JP 2004090739 A JP2004090739 A JP 2004090739A JP 4502680 B2 JP4502680 B2 JP 4502680B2
- Authority
- JP
- Japan
- Prior art keywords
- acid
- oil
- electrical insulating
- ester
- insulating 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 - Fee Related
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- Organic Insulating Materials (AREA)
Description
なお、前記ネオペンチルグリコールは、アルコール全量中、40モル%以上、特には60モル%以上とすることが好ましい。
また、カルボン酸としては、上記の直鎖以外に分岐鎖のカルボン酸を混合してもよいが、この場合、分岐鎖のカルボン酸は全カルボン酸中40モル%以下とすることが好ましい。
なお、エステルを主成分とする基油は、鉱油系の基油に比べると比誘電率が高いので、電力ロスが少なく、また、飽和水分量が高いため、水分濃度が500ppmになっても、絶縁破壊電圧を50KV以上に保持することができる。
(1) 動粘度:JIS K 2283に規定された方法により、0℃で測定した。
(2) 生分解性:OECD 301Bに規定された方法(28日後)で測定した。
(3) 流動点: JIS K 2269に規定された方法で測定した。
(4) 全酸価:JIS K 2514に規定された方法で測定した。
(5) 絶縁破壊電圧:JIS C2101に規定された方法で測定した。
(6) 誘電正接:JIS C2101に規定された方法により80℃で測定した。
(7) 引火点:JIS K 2265に規定された方法(クリーブランド開放式)で測定した。
これに対して、比較のための供試油6は動粘度及び引火点が低く、また供試油7は流動点が高過ぎて、供試油8は動粘度及び流動点が高く、しかも生分解性が低く、供試油9は流動点が高く、しかも生分解性が低く、供試油10は流動点が高く、供試油11は生分解性が低く、動粘度が高く、供試油12は生分解性が低く、いずれも電気絶縁油として劣っている。
Claims (3)
- ネオペンチルグリコールとトリメチロールプロパン及び/又はペンタエリスリトールとのアルコールと、ペンタン酸、ヘキサン酸、ヘプタン酸、オクタン酸、ノナン酸、デカン酸から選定された2種以上のカルボン酸とからなるエステルを基油全量基準で50質量%以上含有し、0℃における動粘度が10〜250mm2/s、絶縁破壊電圧が50KV以上、生分解性が60%以上、流動点が−35℃以下である電気絶縁油。
- 上記混合カルボン酸が、n-ペンタン酸、n-ヘキサン酸、n-ヘプタン酸、n-オクタン酸、n-ノナン酸、n-デカン酸から選定された2種以上であることを特徴とする請求項1に記載の電気絶縁油。
- 酸化防止剤としてフェノール系及び/又はアミン系化合物を、帯電防止剤としてトリアゾール化合物を、または加水分解抑制剤としてカルボジイミド及び/又はエポキシ化合物のいずれか1種以上をそれぞれ1質量%以下添加したことを特徴とする請求項1又は2に記載の電気絶縁油。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004090739A JP4502680B2 (ja) | 2004-03-26 | 2004-03-26 | 電気絶縁油 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004090739A JP4502680B2 (ja) | 2004-03-26 | 2004-03-26 | 電気絶縁油 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005276714A JP2005276714A (ja) | 2005-10-06 |
JP4502680B2 true JP4502680B2 (ja) | 2010-07-14 |
Family
ID=35176135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004090739A Expired - Fee Related JP4502680B2 (ja) | 2004-03-26 | 2004-03-26 | 電気絶縁油 |
Country Status (1)
Country | Link |
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JP (1) | JP4502680B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1993775B (zh) * | 2004-10-13 | 2012-09-05 | 株式会社日本能源 | 电绝缘油 |
JP2009117640A (ja) * | 2007-11-07 | 2009-05-28 | Hitachi Ltd | 負荷時タップ切換器付静止誘導電器 |
JP5613395B2 (ja) * | 2009-09-18 | 2014-10-22 | Jx日鉱日石エネルギー株式会社 | 電動モータ油組成物 |
GB201402570D0 (en) | 2014-02-13 | 2014-04-02 | M & I Materials Ltd | Improvements in and relating to dielectric fluids |
GB201502874D0 (en) * | 2015-02-20 | 2015-04-08 | M & I Materials Ltd | Low temperature dielectric fluid compositions |
GB2564471A (en) * | 2017-07-13 | 2019-01-16 | M&I Mat Limited | Biodegradable fluids for high voltage cables |
CN116103075A (zh) * | 2022-12-13 | 2023-05-12 | 广东电网有限责任公司 | 一种合成酯绝缘油及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003119482A (ja) * | 2001-10-10 | 2003-04-23 | New Japan Chem Co Ltd | 潤滑油 |
JP2004273291A (ja) * | 2003-03-10 | 2004-09-30 | Japan Energy Corp | 電気絶縁油 |
JP2004315553A (ja) * | 2003-04-11 | 2004-11-11 | Japan Energy Corp | 生分解性潤滑剤 |
-
2004
- 2004-03-26 JP JP2004090739A patent/JP4502680B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003119482A (ja) * | 2001-10-10 | 2003-04-23 | New Japan Chem Co Ltd | 潤滑油 |
JP2004273291A (ja) * | 2003-03-10 | 2004-09-30 | Japan Energy Corp | 電気絶縁油 |
JP2004315553A (ja) * | 2003-04-11 | 2004-11-11 | Japan Energy Corp | 生分解性潤滑剤 |
Also Published As
Publication number | Publication date |
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JP2005276714A (ja) | 2005-10-06 |
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