Eddy current losses in round conductors

Eddy current losses in round conductors are discussed. An analytical approximation is presented. The proposed solution considers the wire diameter, the number of layers and wires in parallel, the distance from a possible air gap, the horizontal and vertical copper filling factors. The feasible improvements of the design are discussed in order to decrease eddy current losses. The purpose of the paper is to guide the designer to obtain an accurate prediction of eddy current losses in most of the possible winding arrangements, as well as to improve an already made design.