ARRANGEMENT FOR COOLING THE POLES OF A DYNAMOELECTRIC MACHINE

摘要

An arrangement for cooling the pole shoes of a leg-type pole dynamo electric machine includes a metal frame which is arranged on and surrounds the pole core between the pole coils and the pole shoe. The metal frame which lies in direct contact with the pole shoe is provided with internal channels through which a liquid coolant is circulated and also constitutes a closed loop which thereby also establishes a single-turn short circuit winding on the pole core.