| 摘要 |
<p>PURPOSE: To reduce the installing space by overlapping the residual one coil on or underneath the two coils aligned laterally of three coils to be disposed. CONSTITUTION: The phase coils 10, 20, 30 of a three-phase transformer are disposed vertically with through holes 13, 23, 33 in such a manner that the u-phase coil 10 and the w-phase coil 30 are aligned laterally and the v-phase coil 20 is so disposed as to be superposed thereon. Further, the coils 10, 30 are laterally aligned at a predetermined interval, and the coil 20 is so arranged as to dispose the hole 23 directly above the interval. The leg 45 of the center of the legs 45, 46, 47 of a three-phase core 40 is inserted into the hole 23 of the coil 20 vertically at the gap between the laterally aligned coils 10 and 30, and the residual two legs 46, 47 are inserted to the holes 13, 33 of the coils 10, 30 vertically at the side of the coil 20. Since the projecting area of the vertical direction is reduced, the installing space can be reduced.</p> |
