Numerical analysis on the short‐circuit withstanding performance of busbar system in LV switchgear

The short-circuit withstanding performance of busbar system is one of the most important safety indexes for low-voltage (LV) switchgear. The resonance characteristics, short-circuit displacement, and stress concentration of four typical busbar system arrangements are numerically analysed in this study. First, modal analysis is used to calculate the vibration modes and natural frequencies of the busbar systems. The influence of span length and...