Electrical winding cooling device e.g. for reactor coil, has cooling medium fed through parallel paths provided by multi-layer barrier device communicating with annular channel containing winding

摘要

The cooling device (1A) has an electrical winding (6) contained within an annular channel (5) for a cooling medium defined between coaxial barriers (3,4), the cooling medium fed axially through a multi-layer barrier device (16A) communicating with the annular channel, with a greater radial width than the latter and provided with several parallel cooling medium paths (71,72) positioned radially next to one another.