Patent · US Expired

Arc quenching configuration for an electrical switching device

US6717090B2 · kind B2 · utility

10Cited by

6References

14Claims

0Family size

Inventors

Klaus Kling · Langenau, DE
Richard Kommert · Heidelberg, DE
Alexander Rab · Walldorf, DE
Jurgen Hofmann · Spalt, DE
Patrick Claeys · Darmstadt, DE

Key dates

Filing date	Nov 18, 2002
Grant date	Apr 6, 2004
Priority date	—
Expiry date	Nov 18, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01H73/18
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An arc quenching configuration for an electrical switching device has an arcing chamber in which an arc is produced between a stationary contact piece and a moving contact piece during a switching operation. An arc splitter stack is provided and has a number of arc splitter plates and into which the arc is passed via guide rails. At least one plate composed of an insulating material is disposed in or adjacent to the arc splitter stack, an external circumference of the plate does not project beyond the external circumference of the arc splitter plates, and the plate has an internal recess.

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