Simplified Iron Losses Evaluation Method for Actual Stator Cores of Rotating Machines

摘要

This paper deals with a simplified iron loss evaluation method for actual stator cores of rotating machines. It is well known that the magnetic properties deteriorate in constructed cores due to conditions stressed by riveting and welding during manufacturing process, punching and shearing in cutting process of the silicon steel sheets and so on. As a result, the iron losses increase in comparison with ones of the ideal materials assumed in designing, and the building factor becomes more than one.