Multiphysics Modeling of the Dynamic Response of a Vacuum Automatic Circuit Recloser System

This paper introduces the development of an analytical mathematical model to describe the fast dynamic response ofthe opening and closing mechanism of a power line recloser switch. The model is then used to simulate and evaluate thetransient mechanical and electromagnetic performance during the opening and closing movements of the recloser. Thesimulated results are validated by measurements on an actual recloser while it operates. This model can be used tooptimize the recloser design and reduce the manufacturing cost, instead of using the time-consuming finite-elementanalysis.