| 摘要 |
PURPOSE:To make the insulation performance reliable by a method wherein the voltage fed between adjoining coil sections is made 1/2 of the shared voltage to reduce the field concentration at the section ends. CONSTITUTION:When the shielded conductors 106 are wound up by coil sections, the opposite area of 1.5 turns becomes equivalent to both surface opposite area between the conductors 106 and 105 in the section III since the opposite area of the conductors 106 and 105 in the section II become single surface opposite in the one turn on the innermost periphery and both surface opposite in the next turn. Therefore the capacity between the conductors 105 and 106 in the section II becomes equivalent to the capacity between the conductors 105 and 106 in the section III while the potential at the contact P of the conductor 106 is equivalent to the intermediate potential between the winding sequences 7 and 18 of the conductor 105 due to static coupling, i.e. the conductors between the coil sequences 7 and 18 are fed with the shared voltage for two sections while the conductors between said contact P and the winding sequences 7 and 18 are fed with only 1/2 of said shared voltage. |
