| 摘要 |
PURPOSE:To obtain a lightweight reactor device with which an induction fault can be prevented by a method wherein the member consisting of a magnetic material is superposed in the axial direction of the coil on the reactor having a coil and the member consisting of a non-magnetic and highly conductive material, and the magnetic shield device, which will be asymmetrically arranged against the center axis of the coil, is provided. CONSTITUTION:A reactor device in equipped with a coil 1 and a magnetic shield device 2. Also, the magnetic shield device 2 has a shielding member 2a, consisting of a non-magnetic and high conductivity material to be arranged in the radial direction of the coil 1 surrounding the coil, and a shield member 2b consisting of the magnetic material to be superposed inside the shield member 2a. As the shield member 2b is arranged in such a manner that it is asymmetrical to the center axis X-X of the coil 1, namely, it is present on the lower half only of the coil, the plate thickness T can be made thicker when compared with the case where the shield member is arranged on the whole circumference of the coil, and the inductive fault-caused by a DC magnetic field on the lower side of the coil 1 can be prevented.
|
