Patent · US Active

On-load tap changer

US9455658B2 · kind B2 · utility

2Cited by

9References

9Claims

0Family size

Assignee

MASCHINENFABRIK REINHAUSEN GMBH · DE

Inventors

Herbert Kammerl · Wolfsegg, DE
Alfred Bieringer · Geiselhöring, DE

Key dates

Filing date	Apr 19, 2013
Grant date	Sep 27, 2016
Priority date	—
Expiry date	Aug 24, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01H9/0038
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption. According to the invention, the selector contact unit (7) and the switching means (16, 17) for switching the load without interruption are jointly actuated without using an intermediate energy accumulator, by means of a threaded spindle (5) which is rotated by a drive motor (2) during a switching operation.

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