An expert system for designing the protection system of a power transformer

The protection of power system elements has become more complicated and it is difficult for design engineers to design perfect protection systems. Qualified engineers feel they are under much more pressure at work because they are expected not only to be use their old skills and experience, but must also take in new technological information at the same time. However, expert system technology is a promising approach to help to do some or most design tasks. This paper proposes an expert system for designing the protection system of a transformer by making use of a support tool, OPS83, with a graphical menu and a friendly interface. The developed expert system is applied to the design work of Henan Electric Power Design Institute in China (HEPDIC) to check its operation.