Opera 18 electromagnetic and multiphysics design software is a general-purpose finite element software suite for product analysis, design and optimization. Features include an analytic tool to help users quickly assess different winding configurations in rotating electrical machines. The graphical analysis setup tool brings drag-and-drop editing simplicity to complex evaluation sequences involving multiphysics simulation. The modeling of materials with very small skin depths is also made simpler by a surface impedance boundary condition for transient electromagnetic analysis; the code for this software is also specifically structured to allow parallel processing to accelerate analysis. The tool for electrical machine design allows highly detailed investigation of possible winding options prior to finite element analysis and simulation of the most promising designs. Called the Winding Tool, it enables designers to assess the feasibility and efficiency of different coil winding configurations — and their impact on machine performance — very quickly.