Insulating oil and electrical apparatus filled with the same

Details Insulating oil and electrical apparatus filled with the same Insulating oil and electrical apparatus filled with the same

1987-11-04

1988-09-13

Wax, Robert

Compositions

Fluent dielectric

N-containing

174 17LF, 174 23C, 174 25C, 252 515R, 252403, 336 94, 361315, 361319, 361327, 564462, 585 63, 585 66, H01B 320

Patent

active

047708166

ABSTRACT:
An insulating oil containing N,N-bis(2-hydroxyethyl)-N-cyclohexylamine at 0.5 mg/l or more. An electrical apparatus is filled with the insulating oil in which a copper component is immersed. During operation of the apparatus for a long period of time, the tan .delta. of the insulating oil does not increase so that deterioration of the insulating oil is deferred, thereby substantially extending the life of the insulating oil.

REFERENCES:
patent: 3225099 (1965-12-01), Coffield

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