| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stationary induction electrical apparatus in which cooling performance of the winding is enhanced at a part where a low insulation performance is required without worsening the insulation performance at a part where a high insulation performance is required. <P>SOLUTION: The stationary induction electrical apparatus comprises the cylindrical winding wound about a core, a first insulation tube formed cylindrically of an insulator contiguously to the side surface of the winding, a first corner ring insulator formed of an insulator and connected with the first insulation tube to cover the end of the winding, a second insulation tube formed cylindrically of an insulator contiguously to the side surface of the winding near the end thereof, and a second corner ring insulator formed of an insulator and connected with the second insulation tube to cover the end of the winding. A cooling medium flows into the gap between the first insulation tube and the second insulation tube. <P>COPYRIGHT: (C)2012,JPO&INPIT |
