Patent · US Expired

Switching gas damper for low-voltage power circuit breakers

US6960736B1 · kind B1 · utility

7Cited by

7References

21Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Bach · Kildeer, US
Detlev Schmidt · Berlin, DE
Michael Sebekow · Berlin, DE
Guenter Seidler-Stahl · Berlin, DE
Sezai Tuerkmen · Berlin, DE

Key dates

Filing date	Apr 20, 2000
Grant date	Nov 1, 2005
Priority date	—
Expiry date	Apr 20, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2009/348
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switching gas damper for low-voltage power circuit breakers, is arranged as an attachment above the arcing chambers for additional damping, deionization and cooling of the switching gases. The switching gas damper includes a cuboid enclosure with separate inlet openings to receive switching gas flows from each arcing chamber in the low-voltage power circuit breaker. Separate outlet channels are formed by channel walls and/or by deflection elements and are routed on both sides of the power circuit breaker. A variable arrangement of the deflection elements and outlet channels makes it possible to produce a number of mutually separate flow paths, with different desired damping and cooling characteristics, as a function of the gas amounts that occur and of the characteristics of the arcing chambers that are used.

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