Patent · US Expired

Electric high-tension circuit breaker

US5589673A · kind A · utility

8Cited by

2References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Volker Lehmann · Hersbruck, DE
Heiner Marin · Berlin, DE
Ingolf Reiher · Berlin, DE

Key dates

Filing date	May 15, 1995
Grant date	Dec 31, 1996
Priority date	—
Expiry date	May 15, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2033/908
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A self-blow-out switch having a compression device has a pressure chamber heated by electric arc energy connected to a compression space, optionally with valve control. The compression space is connected to a low-pressure space via a pressure relief valve and a refill valve. Two valve disks of the relief and refill valves, which are located between the compression space and the low-pressure space are designed as two concentric washers of different diameters, lying in direct contact with each other and partly overlapping each other, and integrated to form a single valve unit.

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