| 摘要 |
PURPOSE:To enhance heat transmission between a cooling duct and a coolant at the foil winding transformer by a method wherein disk type spacers of the plural number are arranged zigzag in the coolant circulating course of the cooling duct provided in the coil of the transformer. CONSTITUTION:The disk type spacers 16 of the plural number are arranged zibzag in the cooling duct 6. When the disk type spacers thereof are to be assembled in the cooling duct, the spacers are fixed by spot welding, etc., to the cooling duct face on one side. The coolant 7 flows in the cooling duct 6 bypassing the disk type spacers, and because the sectional area of the circulating course varies extremely, the current of the coolant is disordered, and the heat transmission between the cooling duct and the coolant is enhanced. |
