Claims
- 1. An electrical power transformer, said transformer comprising an electrical component, a synthetic oil surrounding the electrical component and means for containing said synthetic oil, wherein said synthetic oil is selected from the group consisting of 1-octene dimer, 1-decene dimer, co-dimer of 1-octene and 1-decene, and mixtures thereof wherein (a) said 1-octene dimer further consists of a mixture of C.sub.16 H.sub.32 isomers, which mixture includes 7-methylpentadecene isomers, provided that said mixture contains less than about 2.5 weight percent of said 7-methylpentadecene isomer based on the weight of said mixture, (b) said 1-decene dimer further consists of a mixture of C.sub.20 H.sub.40 isomers, which mixture includes 9-methylnonadecene isomers, provided that said mixture contains less than about 2.5 weight percent of said 9-methylnonadecene isomers based on the weight of said mixture, and (c) said co-dimer further consists of a mixture of C.sub.18 H.sub.36 isomers, which mixture includes C.sub.18 H.sub.36 isomers selected from the group consisting of 7-methylpentadecene, 9-methylheptadecene isomers, and mixtures thereof, provided that said mixture contains less than about 2.5 weight percent of said 7-methylpentadecene and 9-methylheptadecene isomers based on the weight of said mixture.
- 2. The power transformer of claim 1 wherein said fluid comprises a dimer of 1-octene.
- 3. The power transfer of claim 2 wherein said fluid contains up to about 25 weight percent of one or more oil additives.
- 4. The power transfer of claim 3 wherein said fluid contains up to about 0.1 to 20 weight percent of one or more oil additives.
- 5. The power transformer of claim 3 wherein said fluid comprises a hydrogenated dimer of 1-octene which contains less than about 0.5 weight percent of 7-methylpentadecane.
- 6. The power transformer of claim 5 herein said fluid contains an antioxidant.
- 7. The power transformer of claim 1 wherein said synthetic oil is hydrogenated so as to provide C.sub.16 H.sub.34 isomers containing less than about 2.5 weight percent of 7-methylpentadecane, C.sub.20 H.sub.42 isomers containing less than about 2.5 weight percent of 9-methylnonadecane and C.sub.18 H.sub.38 isomers containing less than about 2.5 weight percent of 7-methylheptadecane and/or 9-methylheptadecane.
Parent Case Info
This application is a division of application Ser. No. 705,960, filed May 28, 1992, Pat. No. 5,171,918, which is a continuation-in-part of a application Ser. No. 684,291, filed Apr. 12, 1991, abandoned, which is a continuation-in-part of application Ser. No. 554,717, filed Jul. 19, 1990, Pat. No. 5,068,487, both of which applications Ser. No. 684,291 now abandoned, and Ser. No. 554,727 now U.S. Pat. No. 5,068,487, are incorporated herein by reference.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
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Parent |
705960 |
May 1991 |
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Continuation in Parts (2)
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Number |
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684291 |
Apr 1991 |
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Parent |
554727 |
Jul 1990 |
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