Historical
IEEE C57.111-1989 (R2009)
IEEE Guide for Acceptance of Silicone Insulating Fluid and Its Maintenance in Transformers
This IEEE Standards product is part of the C57 family on Power Distribution and Regulating Transformers. Tests and evaluation procedures for silicone transformer fluid are recommended. Criteria for maintenance and methods of reconditioning silicone fluid are described. The aim is to assist the transformer operator in evaluating the silicone insulating fluids in transformers, fluid received from the manufacturer for filling transformers at the installation site, and fluid processed into such transformers, as well as in maintaining the properties of silicone fluid in operating transformers.
Institute of Electrical and Electronics Engineers [ieee]