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US 2026/0120969 A1Published application
On-load tap changer and method for operating an on-load tap changer
AssigneeHitachi Energy Ltd
InventorsKent OLSSON, Gunnar ANDERSSON, Jim ANDERSSON
Life of this patent
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Abstract
An on-load tap changer includes a first tap selector, a second tap selector, a first diverter switch and a second diverter switch, wherein the diverter switches are connected to each other such that the tapped windings are connected in series, a first change over selector and a second change-over selector and one or more high-ohmic resistances in an electric connection between at least one of the diverter switches and at least one of the tapped windings.
Claims14
An on-load tap changer comprising:
- a first tap selector for connection to a first tapped winding and a second tap selector for connection to a second tapped winding,
- a first diverter switch and a second diverter switch being connected to the respective tap selectors, wherein the diverter switches are connected to each other to connect the tapped windings in series,
- a first change-over selector for connection to the first tapped winding and a second change-over selector for connection to the second tapped winding, and
- one or more high-ohmic resistances in an electric connection between at least one of the diverter switches and at least one of the tapped windings.
1 more element
Dependencies are inferred from the claim text.