Patent · US Expired

Contact arrangement for an electric compressed-gas circuit breaker

US4015095A · kind A · utility

6Cited by

4References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rainer Bitsch
Heiner Marin · Berlin, DE
Helmut Beier · Berlin, DE

Key dates

Filing date	Sep 4, 1975
Grant date	Mar 29, 1977
Priority date	—
Expiry date	Sep 4, 1995

Classification

Technology area (CPC H)Electricity
CPC primaryH01H33/91
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention is directed to a contact arrangement in a compressed-gas circuit breaker such as a blast-piston breaker. The contact arrangement includes two base contacts and a bridging contact member. One of the base contacts is movable as a function of the current to be interrupted and the motion is controlled by two electrodynamic coil systems. One coil system causes a shortening of the gap and the other coil system causes a reverse motion shortly before the zero crossing to establish the quenching distance.

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