H - Electricity – 01 – B
Patent
H - Electricity
01
B
31/100
H01B 3/20 (2006.01) H01B 3/22 (2006.01)
Patent
CA 2018118
The electrical insulating fluid, which has a high fire point, a relatively low viscosity and is less costly than conventional saturated hydrocarbon oils, includes about 20 to about 90 weight % of a saturated aliphatic or aromatic hydrocarbon oil having an average molecular weight greater than 400 and a fire point great than 300°C, about 10 to about 80 weight % of an ester oil of pentaerythritol having a fire point greater than 300°C and 0 to about 2 weight % of an antioxidant.
Le fluide, isolant électrique, à haut point d'inflammation, à viscosité relativement faible, et moins coûteux que les huiles classiques à base d'hydrocarbures saturés, renferme : environ 20-90 % en poids d'une huile à base d'hydrocarbures aliphatiques saturés ou aromatiques, possédant une masse moléculaire ne dépassant pas 400 et un point d'inflammation supérieur à 300 degrés C; environ 10-80 % en poids d'une huile d'ester de pentaérythritol à point d'inflammation supérieur à 300 degrés C; 0 à environ 2 % d'un antioxydant.
Northrup Stephen D.
Sundin David W.
Cooper Power Systems Inc.
Smart & Biggar
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