Comparasion between Oil Immersed and SF6 Gas Power Transformers Ratings
Abstract: Power transformers
present the largest portion of the capital investment in addition the power
transformer remains oil immersed which presents a fire hazard that is
particularly objectionable in urban and metropolitan environment. After careful
studies of various alternatives to conventional transformer technology to
produce a gas insulated power transformer with increased mega volt-ampere
ratings, gas insulated power transformer has been developed with a use with non
flammable SF6 gas. For changing the insulating material from oil to SF6 gas a
comparative study between these types of transformers should be made. In this
paper two mathematical models are suggested and simulated by computer programs
to calculate the temperature of the cooling mediums and transformer windings.
The obtained results are in agreement wit the measured values in the field.
Author: Osama Elsayed Gouda,
Mohamed Dessoky Ali, Ali-Hassan Ali-Hassan
Journal Code: jptkomputergg120051
