US 12,087,537 B2
On-load tap changer
Thomas Schuster, Regensburg (DE); Andreas Raith, Deggendorf (DE); and Georg Kellendorfer, Regensburg (DE)
Assigned to MASCHINENFABRIK REINHAUSEN GMBH, Regensburg (DE)
Appl. No. 17/775,317
Filed by Maschinenfabrik Reinhausen GmbH, Regensburg (DE)
PCT Filed Sep. 17, 2020, PCT No. PCT/EP2020/075967
§ 371(c)(1), (2) Date May 9, 2022,
PCT Pub. No. WO2021/094015, PCT Pub. Date May 20, 2021.
Claims priority of application No. 10 2019 130 457.1 (DE), filed on Nov. 12, 2019.
Prior Publication US 2022/0406534 A1, Dec. 22, 2022
Int. Cl. H01H 9/00 (2006.01)
CPC H01H 9/0011 (2013.01) [H01H 9/0038 (2013.01); H01H 2009/0094 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An on-load tap changer for uninterrupted switching between winding taps of a tap-changing transformer, the on-load tap changer comprising:
at least one selector configured to preselect, in a powerless manner, a selected winding tap of the winding taps;
at least one diverter switch configured to actually switch loads from a previous winding tap to a preselected winding tap of the winding taps;
at least one toothed gearing comprising a first gearwheel and a second gearwheel, the first gearwheel configured to drive the selector, and the second gearwheel configured to drive the diverter switch;
a drive shaft; and
a motor drive configured to drive the drive shaft,
wherein the first gearwheel and the second gearwheel are directly interconnected mechanically in such a way that the first gearwheel and the second gearwheel are simultaneously actuatable,
wherein the first gearwheel is configured to be directly driven by the drive shaft,
wherein the second gearwheel is configured to be directly driven by the drive shaft, and
wherein the drive shaft is configured to selectively drive either the first gearwheel or the second gearwheel.