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The main objective of this paper is to propose an algorithm to predict and  compare the sizes of the bus bar with materials like copper and aluminium by  considering the allowable ampacity and allowable temperature rise with natural and forced convection cooling arrangement. Theoretical analysis is  carried out with modified size of the copper busbar using MATLAB, to analyze  the ampacity and temperature variation under the natural and forced  convection mode. The algebraic equation developed from thermal model is  solved using MATLAB for the determination of the allowable temperature rise  and ampacity of rectangular-section bus bars of copper and aluminium and  also for different sizes of busbar. An algorithm has been developed for the  analysis. Experimental observations of temperature variation in copper  busbar with standard size under natural and forced cooling mode are  validated with the algebraic equation developed from thermal model is solved  using MATLAB. It is concluded that busbar dimensions are compared for the materials Copper and Aluminium to predict the suitable equivalent dimensions  for the same ampacity level and within the allowable temperature rise to  reduce the cost of panel.

Prediction and comparison of size of the copper and aluminium bus duct system based on ampacity and temperature variations using MATLAB