JP5102452B2 - 電気絶縁油 - Google Patents
電気絶縁油 Download PDFInfo
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- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/106—Naphthenic fractions
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
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- C10M2203/108—Residual fractions, e.g. bright stocks
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/108—Residual fractions, e.g. bright stocks
- C10M2203/1085—Residual fractions, e.g. bright stocks used as base material
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/17—Fisher Tropsch reaction products
- C10M2205/173—Fisher Tropsch reaction products used as base material
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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Description
この鉱油の水素化精製によって、多環芳香族物質や不飽和成分、硫黄化合物、窒素化合物、が取除かれている。水素化精製ナフテン系鉱油は水素化精製パラフィン系鉱油に比較して、低温流動性は良好であるが、酸化防止性が低く、逆に水素化精製パラフィン系鉱油は水素化精製ナフテン系鉱油に比較して低温流動性は悪いが、熱酸化安定性(酸化防止性)に優れている。
例えば、ブライトストックの動粘度が水素化精製鉱油や合成炭化水素油と比較して相対的に高いことから、水素化精製鉱油や合成炭化水素油を単独で用いる場合には、自ずと40℃の動粘度が16mm2/s以下、好ましくは12mm2/s以下であることが要求される。
一方、混合使用する場合には、水素化精製鉱油及び/または合成炭化水素油のそれぞれの動粘度は8.0〜24.0mm2/sであるものが好ましく、8.0〜20.0mm2/sであるものがより好ましい。そして、それらを適宜組合わせて電気絶縁油に最適な性状(動粘度、流動点など)を得ることができる。
最終的には、電気絶縁油製品として、40℃の動粘度は8.0〜12.0mm2/sであることが要求される。
本発明に用いるブライトストックは、全硫黄分が0.4〜2.0重量%の範囲にあり、メルカプタン硫黄が100重量ppm以下、サルファイド硫黄が0.5重量%以下、全窒素分が100〜500重量ppmの範囲で、塩基性窒素分が300重量ppm以下、全極性分(IP368)が30〜70重量%のAPI基油分類のグループIに属する基油であることが好ましい。
、4,4’−チオビス(2−メチル−6−tert−ブチルフェノール)、4,4’−チオビス(3−メチル−6−tert−ブチルフェノール)、2,2’−チオビス(4−メチル−6−tert−ブチルフェノール)、ビス(3−メチル−4−ヒドロキシ−5−tert−ブチルベンジル)スルフィド、ビス(3,5−ジ−tert−ブチル−4−ヒドロキシベンジル)スルフィド、2,2’−チオ−ジエチレンビス[3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート]、トリデシル−3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート、ペンタエリスリチル−テトラキス[3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート]、オクチル−3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート、オクタデシル−3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート、オクチル−3−(3−メチル−5−tert−ブチル−4−ヒドロキシフェニル)プロピオネート等が好ましく、これらを単独でまたは二種以上を混合して使用することができる。
基油A〜J、ブライトストックの性状は、以下の基準により表2、表3、表4に表記した。
(1)引火点:JIS K 2265(PMCC:ペンスキーマルテンス密閉式、及びCOC:クリーブランド開放式)による。
(2)動粘度(40℃)、動粘度(100℃):ASTM D445による。
(3)流動点:ASTM D97による。
(4)酸価:ASTM D974による。
(5)PCA(PCA content):BS2000P−346による。
また、表7に示す配合により、酸化防止剤を含有する電気絶縁油である実施例8〜11を作成した。
また、上記実施例と比較するために、表8〜10に示す配合により比較例1〜15を作成した。
表5〜10に表記されている「白土処理」は、吸着剤として、油分に対して表示量の活性白土を用いて、30〜40℃で15分間の攪拌混合を行ない、圧縮ろ過により油層を分離した。電気絶縁油の脱色、脱臭、脱水、安定性の向上を目的とする絶縁油の一般的精製法で、その処理を行ったことを示している。
そこで、上記実施例1、2(酸化防止剤を含有しないもの)について、電気絶縁油としての特性値を測定し、その結果をIEC296規格・クラスIIの規格値と共に表11に表記した。
(6)界面張力:ASTM D971によった。
(7)腐食性硫黄:ASTM D1275によった。
(8)水分:ASTM D1533によった。
(9)酸化試験(100℃×168時間):IEC61125A法によった。
(10)酸化試験(120℃×164時間):IEC61125C法によった。
(11)絶縁破壊電圧:ASTM1816(VDE)によった。
特性値の測定は、上記基油、実施例(酸化防止剤を含有しないもの)について記載したもの(1)〜(11)の他、下記によった。
(12)酸化試験(120℃×500時間,IEC61125C法)によった。
特性値の測定は、上記基油、実施例(酸化防止剤を含有しないもの)について記載したもの(1)〜(11)の他、下記によった。
(13)酸化試験(120℃×332時間,IEC61125C法)によった。
実施例1〜7の酸化防止剤を含有しない電気絶縁油において重要な特性値と考えられている酸化安定性(IEC酸化試験)において、IEC296規格・クラスIIの規格値(上限値)又はIEC60296規格・タイプUの規格値(上限値)を大幅に下回っており、電気絶縁油として優良であることが判る。
実施例1、2では、IEC296規格におけるIEC61125A法(100℃×168時間)の酸化試験、及びIEC60296規格におけるIEC61125C法(120℃×164時間)の酸化試験において、何れもその規格値(上限値)を大幅に下回っており、特に優良である。
また、実施例1、2、6,7については、40℃及び−30℃における動粘度、流動点、酸価を初め表11、表12に記載の各特性値についても、いずれもIEC296規格・タイプII及び/またはIEC60296規格・タイプUの規格値を満足する好ましい結果が得られている。
また更に、実施例10、11の酸化防止剤を少量含有する電気絶縁油において、重要な特性値と考えられている酸化安定性について、IEC60296規格・タイプTにおけるIEC61125C法(120℃×332時間)の酸化試験において、何れもその規格値を大幅に下回っており、優良な電気絶縁油であることが判る。また、動粘度を初めとする表15に記載のその他の特性値についても、いずれもIEC60296規格・タイプTの規格値を満足する好ましい結果が得られている。
Claims (8)
- 水素化精製鉱油及び/または合成炭化水素油と、原油を常圧蒸留した残油のパラフィン系鉱油を、減圧蒸留して得られる残渣油を脱瀝、溶剤抽出、溶剤脱ロウ処理をした重質な鉱油基油留分であるブライトストックを0.5〜10重量%含有する引火点(PMCC)130℃以上、流動点−45℃以下の電気絶縁油。
- 上記ブライトストックは、全硫黄分が0.4〜2.0重量%の範囲にあり、メルカプタン硫黄が100重量ppm以下、サルファイド硫黄が0.5重量%以下、全窒素分が100〜500重量ppmの範囲で、塩基性窒素分が300重量ppm以下、全極性分(IP368)が30〜70重量%のAPI基油分類のグループIに属する基油である請求項1に記載の電気絶縁油。
- 上記引火点(PMCC)が135℃以上である請求項1または2に記載の電気絶縁油。
- フェノール系酸化防止剤を更に0.08〜0.4重量%含有している請求項1〜3のいずれかに記載の電気絶縁油。
- フェノール系酸化防止剤を更に0.01〜0.08重量%含有している請求項1〜3のいずれかに記載の電気絶縁油。
- 上記水素化精製鉱油は、40℃の動粘度が8.0〜24mm2/sである水素化精製ナフテン系鉱油及び/またはAPI基油分類グループII或いはIIIの水素化精製パラフィン系鉱油である請求項1〜5のいずれかに記載の電気絶縁油。
- 上記合成炭化水素油は、40℃の動粘度が8.0〜24mm2/sであるイソパラフィン系合成油、GTL合成油(XHVI)、API基油分類グループIVに属するポリ―α―オレフィン(PAO)のいずれか又はその混合物である請求項1〜5のいずれかに記載の電気絶縁油。
- 上記電気絶縁油は、IEC(International Electrotechnical Commission)規格296(ClassII)、IEC規格60296(TypeU)、IEC規格60296(TypeI)又はIEC規格60296(TypeT)の少なくとも1つ以上の規格に適合することを特徴とする請求項1〜7のいずれかに記載の電気絶縁油。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006039407A JP5102452B2 (ja) | 2006-02-16 | 2006-02-16 | 電気絶縁油 |
BRPI0708062-0A BRPI0708062A2 (pt) | 2006-02-16 | 2007-02-15 | composição de óleo isolante elétrico |
US11/675,503 US20070208205A1 (en) | 2006-02-16 | 2007-02-15 | Electrical insulating oil composition |
PCT/EP2007/051484 WO2007093631A1 (en) | 2006-02-16 | 2007-02-15 | Electrical insulation oil composition |
CNA2007800056679A CN101385095A (zh) | 2006-02-16 | 2007-02-15 | 电绝缘油组合物 |
EP07704608A EP1984927B1 (en) | 2006-02-16 | 2007-02-15 | Electrical insulation oil composition |
AT07704608T ATE533166T1 (de) | 2006-02-16 | 2007-02-15 | Zusammensetzung für elektrisches isolationsöl |
ES07704608T ES2373577T3 (es) | 2006-02-16 | 2007-02-15 | Composición de aceite para aislamiento eléctrico. |
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JP2006039407A JP5102452B2 (ja) | 2006-02-16 | 2006-02-16 | 電気絶縁油 |
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JP2007220468A JP2007220468A (ja) | 2007-08-30 |
JP5102452B2 true JP5102452B2 (ja) | 2012-12-19 |
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US (1) | US20070208205A1 (ja) |
EP (1) | EP1984927B1 (ja) |
JP (1) | JP5102452B2 (ja) |
CN (1) | CN101385095A (ja) |
AT (1) | ATE533166T1 (ja) |
BR (1) | BRPI0708062A2 (ja) |
ES (1) | ES2373577T3 (ja) |
WO (1) | WO2007093631A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20100279904A1 (en) * | 2007-07-31 | 2010-11-04 | Chevron U.S.A. Inc. | Electrical insulating oil compositions and preparation thereof |
JP5165307B2 (ja) * | 2007-08-23 | 2013-03-21 | Jx日鉱日石エネルギー株式会社 | 電気絶縁油及びその製造方法 |
WO2009066518A1 (ja) * | 2007-11-21 | 2009-05-28 | Japan Energy Corporation | 電気絶縁油及びその製造方法 |
EP2254126A1 (en) * | 2009-05-20 | 2010-11-24 | Nexans | Organogel for electrical cable insulating layer |
US20160042830A1 (en) * | 2013-03-25 | 2016-02-11 | Idemitsu Kosan Co., Ltd. | Electrical insulating oil composition |
JP2016009553A (ja) * | 2014-06-23 | 2016-01-18 | 出光興産株式会社 | 電気絶縁油組成物 |
FI128090B (en) * | 2016-12-22 | 2019-09-13 | Neste Oyj | Hydraulic fluid composition |
CN108587723B (zh) * | 2018-06-29 | 2020-12-22 | 天津中海海疆能源科技有限公司 | 一种矿物绝缘油及其制备方法 |
FI3984092T3 (fi) | 2019-06-12 | 2023-04-26 | Lubrizol Corp | Orgaaninen lämmönsiirtojärjestelmä, -menetelmä ja -neste |
EP3754674B1 (en) * | 2019-06-17 | 2023-06-07 | Hitachi Energy Switzerland AG | Insulating liquid and inductive arrangement comprising a container with insulating liquid |
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US3541015A (en) * | 1965-12-20 | 1970-11-17 | Gaf Corp | Lubricating oil containing methyl vinyl ether copolymers |
BE754957R (fr) * | 1969-08-18 | 1971-02-18 | Sun Oil Co Pennsylvania | Huile pour transformateurs hydroraffinee et procede pour la |
US4069166A (en) * | 1975-06-20 | 1978-01-17 | Nippon Oil Company, Ltd. | Electrical insulating oils |
US4082866A (en) * | 1975-07-28 | 1978-04-04 | Rte Corporation | Method of use and electrical equipment utilizing insulating oil consisting of a saturated hydrocarbon oil |
GB1514068A (en) * | 1975-07-30 | 1978-06-14 | Nippon Oil Co Ltd | Electrical insulating oil |
US4324933A (en) * | 1976-05-01 | 1982-04-13 | Nippon Oil Co., Ltd. | Electrical insulating oil compositions |
US4956105A (en) * | 1988-05-31 | 1990-09-11 | Mobil Oil Corporation | Lubricant composition containing phenolic/phosphorodithioate borates as multifunctional additives |
JPH06187829A (ja) * | 1992-12-17 | 1994-07-08 | Nippon Oil Co Ltd | 電気絶縁油及びその製造方法 |
BR9509883A (pt) * | 1994-12-08 | 1997-10-21 | Exxon Chemical Patents Inc | Matérias-primas de base de éster sintético ramificado biodegradáveis e lubrificantes formados a partir das mesmas |
US6083889A (en) * | 1999-02-05 | 2000-07-04 | Exxon Research And Engineering Company | High temperature, high efficiency electrical and transformer oil |
US7655132B2 (en) * | 2004-05-04 | 2010-02-02 | Chevron U.S.A. Inc. | Process for improving the lubricating properties of base oils using isomerized petroleum product |
US7682499B2 (en) * | 2005-08-31 | 2010-03-23 | Shell Oil Company | Mineral insulating oil, a process for preparing a mineral insulating oil, and a process for using a mineral insulating oil |
US7666295B2 (en) * | 2005-10-20 | 2010-02-23 | Ergon Refining, Inc. | Uninhibited electrical insulating oil |
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2006
- 2006-02-16 JP JP2006039407A patent/JP5102452B2/ja active Active
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2007
- 2007-02-15 EP EP07704608A patent/EP1984927B1/en not_active Not-in-force
- 2007-02-15 AT AT07704608T patent/ATE533166T1/de active
- 2007-02-15 US US11/675,503 patent/US20070208205A1/en not_active Abandoned
- 2007-02-15 ES ES07704608T patent/ES2373577T3/es active Active
- 2007-02-15 WO PCT/EP2007/051484 patent/WO2007093631A1/en active Application Filing
- 2007-02-15 CN CNA2007800056679A patent/CN101385095A/zh active Pending
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ES2373577T3 (es) | 2012-02-06 |
JP2007220468A (ja) | 2007-08-30 |
US20070208205A1 (en) | 2007-09-06 |
BRPI0708062A2 (pt) | 2011-05-17 |
CN101385095A (zh) | 2009-03-11 |
ATE533166T1 (de) | 2011-11-15 |
EP1984927B1 (en) | 2011-11-09 |
WO2007093631A1 (en) | 2007-08-23 |
EP1984927A1 (en) | 2008-10-29 |
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