Abstract
In this paper, numerical and analytical approaches for the study of busbar systems are analyzed and compared. In the first part of this paper, the multiconductor model (MC) is presented for studying a general busbar system and the equation are formalized for ldquocurrent-drivenrdquo and ldquovoltage-drivenrdquo problems. Afterward, the ldquoMC methodrdquo has been applied for solving a ldquocurrent-drivenrdquo problem related to an industrial busbar system. The evaluation of current distribution and electrodynamic forces of the system has been compared with the one obtained by using a classical finite-element method. Finally, the total current in the massive conductors of the system has been compared with the measurement. In the second part, an analytical approach for evaluating the electrodynamic forces is presented. The ldquoadjacent massive conductorsrdquo configuration considered in the IEC standard 865/93 is fully detailed and the ldquononadjacent massive conductorsrdquo configuration, not considered in the standard, has been developed.
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