Patent · US Active

On-load tap changer, regulating transformer with on-load tap changer, and method for connecting an on-load tap changer

US11177086B2 · kind B2 · utility

0Cited by

1References

13Claims

0Family size

Assignee

MASCHINENFABRIK REINHAUSEN GMBH · DE

Inventors

Andreas Stocker · Neutraubling, DE
Marco Hoerl · Regensburg, DE
Christian Hammer · Regensburg, DE

Key dates

Filing date	Sep 7, 2017
Grant date	Nov 16, 2021
Priority date	—
Expiry date	Apr 27, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01H9/0033
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An on-load tap changer includes: a fine selector, including: fixed contacts having a commutation contact, connectable with a main winding, and tap contacts, connectable with an associated tap of regulating windings; first and second arms that selectably contact the fixed contacts; a preselector, switchable between first and second settings, connectable with the regulating and main windings, and having: first, second, and third preselector fixed contacts, connectable in the first setting with the first preselector fixed contact and in the second setting with the second preselector fixed contact; and a load changeover switch, switchable between first and second changeover settings, and including: a first terminal connected with the first arm, a second terminal connected with the second arm, and a diverter line connected in the first changeover setting with the first terminal and in the second changeover setting with the second terminal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.