Busbar failure analysis on 6300A distribution panel with computer aided engineering (CAE)

The distribution panel is a safety device used to cut off electricity when a short circuit occurs.Inside the distribution panel there is a busbar system.The busbar is a component of copper bars that are shaped according to the desired path.Moreover, the busbar is supported by a busbar support which must be strong enough to withstand from mechanical impact caused by an electromagnetic force.Electromagnetic force can cause attraction between busbars.When the busbar support cannot withstand the busbar on its position, it can cause a short circuit.The distribution panel inside is designed with the busbar system and busbar support.After the design process is complete, the next step is analysis.The electromagnetic force that occurs is 4416.73N, and the results of the comparison are σm > q.σmax.Based on these results, it is certain that the busbar will deflect when resisting electromagnetic forces.The results of the CAE analysis prove that the busbar is deformed in the form of a deflection of 64.814 mm and the maximum stress that occurs is 620.104N/mm 2 .The results of the calculation analysis prove that the busbar is deformed in the form of a deflection of 56.036 mm and the maximum stress that occurs is 586.112N/mm 2 .Based on the maximum deflection data, it can be seen that there is a gap between the outermost busbar surfaces.The gaps are 22.786 mm and 31.564mm.The minimum gap specified for PT.Trias Indra Saputra standard products is 20 mm while the minimum gap according to IEC 61439-1 & 2 standards is 1.5 mm.Based on the research data, it can be concluded that the design of the 6300 A distribution panel is safe and does not fail.