Metal enclosed generator busbars are applied in electric power plants for the transmission of electric power from generator to transformer. The losses in conductors and enclosures due to rated current are the basis for the calculation of steady state temperature-rises. On the other hand, the maximum force on the conductor due to short-circuit current is an important parameter in determination of mechanical stresses in the conductors and supports. In this paper, using a program based on finite element method (FEM), power losses and short-circuit forces are calculated in arrangement of isolated-phase generator busbar.