Currents Distribution Analysis in Nontransposed Elementary Conductors of a Full-Scale Model Bar

Abstract - This paper deals with analysis of strand currentsdistribution in a model bar with non-transposed subconductors.The strand currents distribution are calculated with ananalytical method (strips method) and are compared with themeasured values using a full scale model bar test setup. Thecalculated results are close to the measured values of the strandcurrents and confirm the effectiveness of the strips methodproviding a good estimation of both strand currents andadditional losses in winding bars (including Roebel bars) of highpower electrical machines.6 halama