Device for forming cooling air channels, e.g. for transformers, has distance pieces of L-shaped section with rectangular profile arm, longer thinner arm aligned with outside of rectangle

摘要

The device has distance holders (1) of electrically isolating, heat-resistant, non-magnetic material engaging around the longitudinal edges of core elements or winding layers wound around the core elements and to each of which at least one winding layer is applied. The distance pieces are of L-shaped cross-section with one short arm (2) of essentially rectangular profile and a thinner longer arm (3) aligned with the outside of the rectangle.