| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electromagnetic induction apparatus that has improved anti-surge characteristics. SOLUTION: The main winding 22 is formed into a cylindrical shape by repeatedly winding layers of wire in the axial direction. The inner main winding 22 is connected at neutral points. A tap winding 23 is connected to the outer main winding 22. The tap winding 23 is formed into a cylindrical shape by winding four element wires in the axial direction and comprises the first tap winding 29 and the second tap winding 30. The terminal of the second tap winding 30 is connected to a voltage applying terminal 32. In this structure, the series capacitance of the main winding 22 increases. The anti-surge characteristics improves because the series capacitance further increases due to the shielding effect of the tap winding 23 against the penetrating surge.</p> |
