High performance dielectric oil and the use thereof in high voltage electrical equipment
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United States of America Patent
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Nov 16, 2010
Grant Date -
Sep 27, 2007
app pub date -
May 24, 2005
filing date -
May 28, 2004
priority date (Note) -
Expired
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Abstract
The invention relates to a high-performance dielectric oil comprising approximately 75 to 95% by volume of a naphthenic oil and approximately 5 to 25% by volume of an ester oil, in particular a synthetic ester oil and more preferably an oil of the family of polyolesters. The high-performance dielectric oil may be used in high-voltage electrical equipment such as power, measurement, distribution or traction transformers, tap changers, bushings, distributors, oil-immersed circuit breakers, power capacitors, cables, etc.
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