ABSTRACT

Construction of eddy-current brakes is physically similar to that of hysteresis brakes. The essential difference is that the IM is now made of a magnetically soft material (one having large µ, a small magnetization vector M, and therefore, easy magnetization) which also has a low specific resistance. Although there are small hysteresis losses in eddycurrent clutches and brakes, just as there are small eddy-current losses in hysteresis clutches and brakes, the primary source of power loss in these brakes is in the generation of eddy