Patent · US Active

Tap changer and vacuum interrupter for a tap changer of this kind

US9607781B2 · kind B2 · utility

1Cited by

0References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Wolfgang Albrecht · Wenzenbach, DE
Christian Hammer · Regensburg, DE
Werner Hartmann · Hamburg, DE
Silvio Kosse · Erlangen, DE
Andreas Lawall · Berlin, DE
Roman Renz · Berlin, DE
Andreas Stelzer · Linz, AT
Joerg Teichmann · Alzenau, DE
Norbert Wenzel · Erlangen, DE

Key dates

Filing date	Nov 10, 2011
Grant date	Mar 28, 2017
Priority date	—
Expiry date	May 15, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2033/6668
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A tap changer for uninterrupted switching between winding taps of a tapped transformer has first and second load branches for each phase to be switched. Each load branch has a main vacuum switch and in parallel thereto a series connection of a switch-over resistance and a respective auxiliary vacuum switch. First and second vacuum switching tubes each contain the main vacuum switch of the respective first and second load branches and the auxiliary vacuum switch of the other of the load branches.

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