GB589150A - Improvements in or relating to the manufacture of oils for electrical insulating purposes - Google Patents
Improvements in or relating to the manufacture of oils for electrical insulating purposesInfo
- Publication number
- GB589150A GB589150A GB2513144A GB2513144A GB589150A GB 589150 A GB589150 A GB 589150A GB 2513144 A GB2513144 A GB 2513144A GB 2513144 A GB2513144 A GB 2513144A GB 589150 A GB589150 A GB 589150A
- Authority
- GB
- United Kingdom
- Prior art keywords
- refined
- mineral oil
- electrical insulating
- extract
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- 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
- H01B3/22—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 hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Lubricants (AREA)
- Organic Insulating Materials (AREA)
Abstract
An electrical insulating oil comprises a mixture of a lightly refined mineral oil of viscosity-gravity constant of not more than 0.850 and a refined aromatic petroleum solvent extract of viscosity-gravity constant of not less than 0.925. The refined mineral oil exemplified comprises a wax-free mineral oil distillate refined with liquid SO2 and then with fuming sulphuric acid followed by neutralisation and treatment with lime and activated earth. The aromatic extract exemplified comprises the extract phase obtained during the refining, by the Edeleanu process, of an oil of the spindle type and purified by sulphuric acid and activated earth treatments. Specification 589,149 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2513144A GB589150A (en) | 1944-12-14 | 1944-12-14 | Improvements in or relating to the manufacture of oils for electrical insulating purposes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2513144A GB589150A (en) | 1944-12-14 | 1944-12-14 | Improvements in or relating to the manufacture of oils for electrical insulating purposes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB589150A true GB589150A (en) | 1947-06-12 |
Family
ID=10222700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2513144A Expired GB589150A (en) | 1944-12-14 | 1944-12-14 | Improvements in or relating to the manufacture of oils for electrical insulating purposes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB589150A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1007928B (en) * | 1956-02-03 | 1957-05-09 | Oelwerke Julius Schindler G M | Isolating oil based on a refined mineral oil with a content of selective extracts of mineral oils |
DE1008437B (en) * | 1955-04-29 | 1957-05-16 | Oelwerke Julius Schindler G M | Insulating oil based on a refined mineral oil and the process for its production |
DE1038221B (en) * | 1955-04-29 | 1958-09-04 | Oelwerke Julius Schindler G M | Isolating oil based on a refined mineral oil |
US3252887A (en) * | 1962-11-20 | 1966-05-24 | Exxon Research Engineering Co | Electrical insulating oil |
DE1645734A1 (en) * | 1963-12-12 | 1970-07-16 | Exxon Standard Sa | Process for the production of solvent oils with a high aromatic content |
DE2634436A1 (en) * | 1975-07-30 | 1977-02-10 | Nippon Oil Co Ltd | ELECTRIC INSULATING OIL |
US4303499A (en) * | 1976-09-11 | 1981-12-01 | Deutsche Texaco Aktiengesellschaft | Process for the production of a transformer oil |
-
1944
- 1944-12-14 GB GB2513144A patent/GB589150A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1008437B (en) * | 1955-04-29 | 1957-05-16 | Oelwerke Julius Schindler G M | Insulating oil based on a refined mineral oil and the process for its production |
DE1038221B (en) * | 1955-04-29 | 1958-09-04 | Oelwerke Julius Schindler G M | Isolating oil based on a refined mineral oil |
DE1007928B (en) * | 1956-02-03 | 1957-05-09 | Oelwerke Julius Schindler G M | Isolating oil based on a refined mineral oil with a content of selective extracts of mineral oils |
US3252887A (en) * | 1962-11-20 | 1966-05-24 | Exxon Research Engineering Co | Electrical insulating oil |
DE1645734A1 (en) * | 1963-12-12 | 1970-07-16 | Exxon Standard Sa | Process for the production of solvent oils with a high aromatic content |
DE2634436A1 (en) * | 1975-07-30 | 1977-02-10 | Nippon Oil Co Ltd | ELECTRIC INSULATING OIL |
US4303499A (en) * | 1976-09-11 | 1981-12-01 | Deutsche Texaco Aktiengesellschaft | Process for the production of a transformer oil |
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