Thermal Modeling Of Busbar Configuration By Finite Element Technique

Abstract

Busbar systems are often employed as a riser for power distribution in large build- ings. In electrical power distribution, busbar is a strip of copper or aluminum that conducts electricity within a switchboard, distribution board, substation or other electrical power apparatus. The use of busbar technology is increasing to realize con- nections within power supply systems in answer to the need of compactness. The temperature rise of busbar systems is a vital factor which limits the maximum con- tinuous current the busbar can carry and is responsible for failure of insulation and higher losses if exceeded which a ects its performance. The dissertation is dealing with thermal analysis such as temperature eld, heat

ux and heat transfer in industrial Busbar system. The integrated problem on heat conduction and radiation-convective heat exchange describes the temperature regime in current carrying busbars of power electrical apparatus. The joule heating e ect is described by conservation laws for electrical current and energy. The computation approach employs the nite element technique to solve the three dimensional electric eld distribution problem and thermal analysis. Numerical as well as experimental solution has been carried out and compared. Simulation as well as three dimen- sional geometry has been developed and modeled by using software program ANSYS Multiphysics.