Transformer Entrance Bushing
Transformer Entrance Bushing
(OP)
There is an entrance bushing constructed from special high-grade material, it used in high voltage insulation ability, for arc and track resistance as will high pressure. Made from Teflon and unfortunately it is given continues failed. Therefore, the failed point was from the Teflon side of the joints points with metallic parts. So these high voltage entrance bushings were used in Desalter and Dehydrator vessel.
So if any one has an idea that could help to prevent the failure of this bushing or any modification can be done especially this bushing was impressed in the crude oil with high pressure and temperature.
So if any one has an idea that could help to prevent the failure of this bushing or any modification can be done especially this bushing was impressed in the crude oil with high pressure and temperature.






RE: Transformer Entrance Bushing
If you should have a three phase arrangement the best configuration is to hace the bushing (penetration) in a equidistant triangular arrangement. Also consider the use of surge arrester in case of severe overvoltage.
Research in HV terminations (Pothead). G&W could be a starting source.
RE: Transformer Entrance Bushing
Thank you.