Significance of Support Structure for Short Circuit withstand Strength of Bus-bar Assembly Panels - Experiences with Testing

This paper describes short circuit withstand capability of Bus-bar assembly panels and the significance of Bus-bar support structures commercially available in use. Recent developments in Bus-bar support structures for assembly panels are also discussed. The performance comparisons of these support structures under the Short-circuit currents were given. Few failure cases are studied from the laboratory tested panels and appropriate recommendations were proposed. This can give an insight, while selecting the suitable bus-bars support structure. Theoretical Force calculations were compared for different Bus-bar geometrical configurations.