Patent · US Active

Manual drive for a tap changer for tap-changing transformers

US8404986B2 · kind B2 · utility

0Cited by

11References

7Claims

0Family size

Assignee

MASCHINENFABRIK REINHAUSEN GMBH · DE

Inventors

Armin Burghauser · Regensburg, DE
Silke Wrede · Zeitlarn, DE

Key dates

Filing date	May 22, 2009
Grant date	Mar 26, 2013
Priority date	—
Expiry date	Mar 19, 2030

Classification

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

Abstract

The invention relates to a manual drive for a tap changer for a tap-changing transformer having a locking unit. The locking unit has a catch which can pivot and has different locking means; the catch can be operated from the outside before an intended switching operation. The locking unit offers high a degree as possible of safety against inadvertent or else deliberate incorrect operations of the manual drive.

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