| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain winding in electric equipment that has improved cooling characteristics and a high winding occupation rate in the winding of electric equipment having an electric insulating cooling medium such as an oil-filled transformer. SOLUTION: In the winding in electric equipment in a multi-section cylindrical winding structure, sections (S1, S2, S3, and the like) have a spacer 5 where the channel in the electric insulating cooling medium is provided in an axial direction and a radius direction. The cooling medium flows as shown by an arrow B along a side section 7a of a film electric wire 1 in a groove that is the channel of the cooling medium formed in the axial direction of the spacer 5 due to natural convection. Then, the cooling medium flows along an upstream section side section 8a of the cooling medium in a groove that is the channel of the cooling medium formed in the radius direction of the spacer 5 due to natural convection as shown by an arrow C, thus improving the cooling characteristics.</p> |
