Patent · US Active

Breaker device for low-voltage applications

US7916442B2 · kind B2 · utility

0Cited by

7References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Anheuser · Dienheim, DE
Gerd Griepentrog · Gutenstetten, DE
Reinhard Maier · Herzogenaurach, DE
Bernd Trautmann · Erlangen, DE

Key dates

Filing date	Jul 26, 2005
Grant date	Mar 29, 2011
Priority date	—
Expiry date	Dec 7, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH01H71/123
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In breaker devices an early short-circuit recognition is required and also a tripping of the contacts. The recognition of a short-circuit occurs so early that with consideration of the response time of the measuring probes and the unlocking mechanism by a suitable analysis algorithm the release of the movable contact occurs before or at least at the time that the current-breaking forces correspond to the contact force. The contact force is hence compensated for and a rapid opening of the contacts can be achieved.

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