| 摘要 |
PURPOSE:To make the regulator sufficiently cope with even a wide tap range, and to obtain the regulator enabling more minute control by connecting exciting windings in parallel, connecting tap windings to each of tap changer and connecting the tap windings in series through the tap changers. CONSTITUTION:A core is a single-phase two-leg one consisting of two main legs 11, 21 and yokes 1, and wires are wound to one main leg 11 in order of the exciting winding 12 and the tap winding 13 from the core leg side and to the other main leg 21 in order of the exciting winding 22 and the tap winding 23 from the core side. The exciting windings 12, 22 are connected in parallel while the tap winding 13 is connected to the main changer 51 of one on-load tap changer and a sub-changer 61, the other tap winding 23 is connected to the main changer 52 of the other on-load tap changer and a sub-changer 62, and the main changer 51 of one on-load tap changer and the other on-load tap changer 62 are connected. That is, the tap windings 13, 23 are connected in series through the two on-load tap changers. Accordingly, the share voltage of each tap winding in the case when surge voltage intrudes is made approximately half the shared voltage of all tap windings. |
