| 摘要 |
PROBLEM TO BE SOLVED: To obtain a stationary induction apparatus which resolves a stream stagnation region occurring in a flow passage of a refrigerant for cooling winding and improves cooling performance.SOLUTION: A stationary induction apparatus comprises: a plurality pieces of disk-shaped winding 1 laminated and disposed; an insulator plate disposed between respective ones of the plurality pieces of winding 1 facing each other; and a plurality of duct pieces 3 disposed between the insulator plate and each of the winding 1. In a straight part 8 of each of the winding 1 and an inlet/outlet port 7 of a refrigerant 4, rectangular-shaped duct pieces 3a and parallelogram-shaped duct pieces 3b which have different plane shapes are obliquely disposed, and a refrigerant flow passage resolving a stream stagnation region is formed. |
