Electrical insulating oil and oil-filled electrical appliances

Details Electrical insulating oil and oil-filled electrical appliances Electrical insulating oil and oil-filled electrical appliances

H - Electricity

01

B

31/102

H01B 3/22 (2006.01)

Patent

CA 1247854

ABSTRACT OF THE DISCLOSURE An electrical insulating oil which can be produced easily at low cost, scarcely contains undesirable components of tarry substance, unsaturated compounds and carbonyl compounds, does neither swell nor dissolve plastic materials, and has excellent electrical properties. The electrical insulating oil is characterized in that it comprises a fraction having boiling points in the range of 270 to 350°C which is prepared by distilling the heavier products obtained from the process for producing ethyltoluene by alkylating toluene with ethylene in the presence of synthetic zeolite catalyst. Included also in the present invention are oil-filled electrical appliances that are produced by impregnating them with the above insulating oil.

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