| 摘要 |
PURPOSE:To provide a power supply unit small in size and easy in maintenance by a construction wherein a coil and high pressure bushings are integrally resin- molded such that the bushings are formed at the side of the coil, and two units of power supply transformers are housed in the same tank. CONSTITUTION:A core 3 and a coil 2 of a power supply transformer are integrally molded with resin 8 such as epoxy resin, and at the same time bushings 22 are formed at the side of the coil. Provided in the bushings 22 are recessed terminals 21 to which high pressure terminals U, V, W are connected, while low pressure terminals u, v, w are provided on the opposite side. The figure shows the construction of the power suppy unit. The interior of a tank 5 is divided by a partition plate 5-3 into two chambers, and each of both side plates 5-1 is provided with three holes through which the bushings 22 are led out to the exterior. Since auxiliary units are mounted onto the external surface of the tank, it becomes possible to reduce the volume of the entire power supply unit and to easily maintain the auxiliary units. |
