Electrical transformers containing electrical insulation fluids

Details Electrical transformers containing electrical insulation fluids Electrical transformers containing electrical insulation fluids

1997-01-06

1999-09-07

Skane, Christine

Electricity: conductors and insulators

With fluids or vacuum

Boxes and housings

252579, H01B 320

Patent

active

059490179

ABSTRACT:
High oleic acid triglyceride compositions that comprise fatty acid components of at least 75% oleic acid, less than 10% diunsaturated fatty acid component; less than 3% triunsaturated fatty acid component; and less than 8% saturated fatty acid component; and having the properties of a dielectric strength of at least 35 KV/100 mil gap, a dissipation factor of less than 0.05% at 25.degree. C., acidity of less than 0.03 mg KOH/g, electrical conductivity of less than 1 pS/m at 25.degree. C., a flash point of at least 250.degree. C. and a pour point of at least -15.degree. C. are disclosed. Electrical insulation fluids comprising the triglyceride composition are disclosed. Electrical insulation fluids that comprise the triglyceride composition and a combination of additives are disclosed. Electrical apparatuses comprising the electrical insulation fluids and the use of electrical insulation fluids to provide insulation in electrical apparatuses are disclosed. A process for preparing the high oleic acid triglyceride composition is disclosed.

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