| 摘要 |
PURPOSE:To suppress noise reducing vibration of magnetic shielding by equalizing an average diameter and winding turns of two juxtaposed windings and thereby equalizing magnetic attraction forces created by leaking magnetic flux from the two windings. CONSTITUTION:A winding consists of a high voltage winding 1 and a low voltage winding 2 which are connected in series are juxtaposed by a winding without a core. The upper and lower end of these windings 1, 2 and the both legs in the direction of the juxtaposition are surrounded by a magnetic shield constisting of lamination of silicon steel plates to constitute a reactor body 4. It is contained in a tank 5 filled with insulating oil. Because the magnetic attraction forces due to the fluxes of the winding 1, 2 exerted on the shield 3 are in phase, vibration modes are cancelled out by these magnetic attraction forces, thereby suppressing the vibration. |
