| 摘要 |
An on-load tap-changer switching mechanism (200) comprising: an annular cam (210) defining a plurality of raised portions (311); and a switch assembly (220) disposed at least partly within and rotatable relative to the annular cam, the switch assembly including an electrical switch (224a) and a cam follower (222a) engaged with the inner surface of the annular cam, wherein the plurality of raised portions are configured to actuate the cam follower on relative rotation of the annular cam and switch assembly, actuation of the cam follower causing operation of the electrical switch. |
