MODEL OF WARMING AND BREAKING OF FUSIBLE FILAMENTS IN HIGH VOLTAGE FUSES

Abstract

The warming up, melting and warming of the melted filament with the inhomogeneous cross-section of high voltage fuses is modelled with aid of a nonlinear electrical RC- network. The arcing, breaking of the fuse is simulated as well. Great prospective current, rapid warming and breaking procedure, consequently, constant geometrical sizes during the warming are assumed.