| 摘要 |
<p>PURPOSE:To improve a mounting area, mounting work, and checking work, and to reduce a material cost, by providing a multistory, unitary body structure of the cubicle of the polyphase semiconductor rectifier apparatus, and arranging and accommodating unit rectifiers in vertical multistory constitution. CONSTITUTION:AC output terminals 53 and 54 are connected to at least two sets of unit rectifiers and accommodated in the vertical multistory constitution depending on the number of sets on the side of a transformer 1. The terminal is taken out of the transformer 1 in the horizontal direction from the outside in a closed manner. Checking paths 64 and 65 are provided at the opposite side of the transformer in the longitudinal direction of the box type cubicle 5 which is constituted for outdoor use. Pairs of positive and negative DC output terminals 55-58 are horizontally taken out of one side of the width direction of the cubicle 50. A cooling device (comprising an air intake hole 70, an air supply hole 72, an air duct, and a water cooling type cooler 75) which circulates cooling air to the unit rectifiers is provided on the other side of the width direction of the cubicle 50.</p> |
