| 摘要 |
PURPOSE:To permit suitable driving for a plurality of on-load tap selectors by one normal operating mechanism by shifting the operating point of a plurality of load tap selectors each other wherein the selectors are connected to an operating mecannism. CONSTITUTION:For example, a tap winding 2A having nine taps 21A-29A is connected to the main winding 1A of one transformer and an on-load tap selector 3A is composed by dividing into an odd number tap selector 31A selecting odd number taps 21A-29A and an even number tap selector 32A selecting even number taps 22A-28A. And nine taps are similarly connceted to the main winding 1B of the other transformer and an on-load tap selector 3B is composed by dividing into an odd number tap selector 31B and an even number tap selector 32B to provide series-connected change-over switches 33A and 33B between the selectors 3A and 3B. In this composition, the taps in the selectors 31 and 32 or the like are alternately selected for every fixed number of rotation NS of a driving input shaft to make the fixed number of rotation NC (<NS/2) each time and the selected-side switch 33 is transferred. |
