The present invention relates to an ester composition that is suitable for successful operation in a dielectric fluid at extreme low temperatures such as below about minus 50°C without compromising the dielectric properties of the composition. The invention also relates to methods of manufacturing the ester composit...

The present invention relates tosynthetic ester compositions, and to dielectric fluid compositions containing them, as well as to methods of manufacturing the ester compositions and dielectric fluid compositions containing them, and to an electrical apparatus containing the dielectric fluid compositions. ...

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