| 摘要 |
PROBLEM TO BE SOLVED: To make dielectric breakage voltage across both ends of a non-inductive wound coil higher than that of the coating of the used electric wire by forming the coil, in such a way that non-inductive wound coil units each composed of a pair of a forward section and a backward section pinching one turning-back point are connected in series and the units at both ends are not adjoined to each other. SOLUTION: A non-inductively wound coil is formed by connecting windings each of which is composed of a forward section and a backward section pinching one turned-back point 4 and wound around a cylinder as one layer of coil in series, and both ends 6 of the whole coil are led out from the lowermost and uppermost layers. Each winding is coated with an insulating coating, and both end sections 6 are formed by covering the winding starting and ending portions respectively led out from the lowermost and uppermost layers with coatings 7 having high withstand voltages. In addition, the obliquely connected portions of the windings in the upper and lower adjoining layers near the lead- out portions are set as connecting points 5 between layer units.
|
