| 摘要 |
<p>PURPOSE:To improve the dynamic stability at the accident of a system and to increase the reliability of a device by combining tap windings of specific connections and connecting the combined windings by thyristor groups obtained by the antiparallel connection of thyristors. CONSTITUTION:A voltage/phase adjusting transformer is constituted of a main transformer 1 and a serial transformer 2, the main transformer 1 is provided with a high voltage main winding 3, an intermediate voltage winding 5 and a low voltage winding 6 and the serial transformer 2 is provided with an exciting winding 9, a stable winding 9 and a serial winding 13. In this case, an adjusting transformer 12 is added and the thyristor groups are used as tap switches. The adjusting transformer 12 is constituted of an adjusting winding 14 connected in parallel with the winding 6, voltage adjusting tap windings 15, 16 for a rectangular component and an in-phase component and their thyristor groups 17, 18. consequently, the number of tap points can be increased even if the number of tap coils is small, and since voltages and phases can be adjusted by thyristor control, rapid control and continuous switching can be attained.</p> |
