Patent ID: 6856122

Claim:
A thyristor tap changer for uninterrupted switching over between different winding taps of a tapped transformer under load, comprising: a mechanical tap selector for power-free preselection of the respective winding tap which is to be switched over to; a load diverter switch with at least one anti-parallel thyristor pair for uninterrupted switching over from the previous to the preselected new winding tap under load; a receiving the tap selector and not the load diverter switch and transformer tank which is filled with transformer oil of the tapped transformer; a separate housing accommodating the load diverter switch in air together with the at least one anti-parallel thyristor pair, the housing being arranged laterally of the transformer tank and separated therefrom by a leadthrough plate; and connecting lines running from the tap selector to the load diverter switch led through the leadthrough plates.