A new computer based design for a 145 kV SF6 switch

This paper presents a new approach developed in order to provide a better design solution for the 110–123 kV, SF6 type switches. Having an efficient computer based tool for the design of such important equipment it's always a challenge for any high voltage equipment manufacturer worldwide. We have to mention, in the first part of the paper, the particular technical characteristic of SF6 HV switches and all the advantages of using this type of expensive equipment. Our team developed a simple and new algorithm/procedure and a new software package used to optimize the design of that kind of equipment, briefly described in the second part of the paper. The principles and the solutions involved are part of a contract made with Electroputere S.A. a traditional Romanian high voltage equipment manufacturer. It is not only a classic CAD procedure, but also a computational and testing sequence as well