| 摘要 |
<p>A hybrid on-load tap changer (70), for use in high voltage alternating current power transmission, comprises a selector (72) and a diverter (74) having two legs (80, 82) defining respective current paths. Each leg (80, 82) includes a pair (P1, P2) of opposed first and second semiconductor switches (84, 86). The hybrid on-load tap changer (70) also includes a controller (76) configured to switch on one of the first or second semiconductor switches (84, 86) of a given leg (80, 82) at a predetermined point within the alternating current cycle so as to commutate off a desired semiconductor switch (84, 86) in the other leg (80, 82).</p> |
