| 摘要 |
PURPOSE:To reduce the material for a winding, and to minimize loss by combining a voltage-regulating transformer and a transformer with no tape and arranging a tap winding for the voltage-regulating transformer and a tap changer on the side reverse to the terminal on the primary side. CONSTITUTION:A voltage-regulating transformer 1 constituted as a three-phase apparatus and a transformer 2 with no tap are combined. With the voltage-regulating transformer 1, each phase U, V, W severally has main windings 6, phase- shifting windings 7 and tap windings 4, the main windings 6 of each phase are connected to several apex of the phase-shifting windings 7 delta-connected, and respective phase main winding 6 is connected to primary-side terminals U, V, W. With the transformer 2 with no tap, primary windings 9 and each phase are star-connected and secondary windings 8 connected to secondary-side terminals (u), (v), (w) are formed, and the primary windings 9 of several phase are connected to the tap windings 4 of each corresponding phase through the primary- side terminal ends of the main windings 6 of several corresponding phase of the voltage-regulating transformer 1 and on-load tap changers 5. |
