| 摘要 |
PROBLEM TO BE SOLVED: To reduce the size of spacers between barriers, reduce the number of spacers, improve the cooling capacity and also increase the dielectric strength of the whole windings by arranging linear spacers other than the spacers which are used between insulating cylinders or the cylinders that becomes the closest to windings only on the upper and lower ends of the windings. SOLUTION: The apparatus has a construction in which linear spacers 10 are arranged only at upper and lower ends and no spacer exists in parts where there is a high electric field. Insulating cylinders 9 are supported and fixed. For supporting the cylinders 9, the insulating cylinders 9 existing between a low-voltage winding 2 and a high-voltage winding 3 are supported by one fixer together, and oil spaces between the low-voltage winding 2 and the high-voltage winding 3 are ensured. Then after assembling the windings, an insulator 7 for fixing and supporting the insulating cylinders is inserted from above and only an insulator 11 for stopping oil is arranged. In this way, the size of the spacers between the insulating cylinders is reduced, the number of spacers is reduced and the cooling capacity and the dielectric strength of the whole winding is increased.
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