Patent · US Active

Selector switch for tap-changing transformers and support arm for a tap selector thereof

US9640340B2 · kind B2 · utility

0Cited by

7References

12Claims

0Family size

Assignee

MASCHINENFABRIK REINHAUSEN GMBH · DE

Inventors

Hurbert Zwirglmaier · Regensburg, DE
Silke Wrede · Zeitlarn, DE
Thomas Schuster · Regensburg, DE
Ulli Laubereau · Regensburg, DE
Gerhard Baeuml · Regenstauf, DE

Key dates

Filing date	Jun 24, 2014
Grant date	May 2, 2017
Priority date	—
Expiry date	Jun 24, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2009/0022
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A load selector for tapped transformers has an oil tank and a preselector having a first preselector contact and a second preselector contact for each phase to be switched by the load selector. The first preselector contact and the second preselector contact are mounted on a wall of the oil tank and extending through the wall of the oil tank. A first zero contact and a second zero contact separate from the first zero contact are provided for each phase to be switched by the preselector. The first zero contact and the second zero contact are each mounted on the wall of the oil tank and extend through the wall of the oil tank.

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