Patent · US Active

Method and device for the secure operation of a switching device

US7872552B2 · kind B2 · utility

0Cited by

13References

23Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Robert Adunka · Sulzbach-Rosenberg, DE
Peter Hartinger · Pfarrkirchen, DE
Bardo Koppmann · Feldkirchen-Westerham, DE
Norbert Mitlmeier · Ursensollen, DE
Ludwig Niebler · Hemau, DE
Fritz Pohl · Hemhofen, DE
Alf Wabner · Amberg, DE
Norbert Zimmermann · Sulzbach-Rosenberg, DE

Key dates

Filing date	Dec 22, 2005
Grant date	Jan 18, 2011
Priority date	—
Expiry date	Jun 5, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH01H1/20
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method and a device for the secure operation of a switching device are disclosed, including at least one main contact which can be switched on and off and which includes contact pieces and a displaceable contact bridge, and also at least one control magnet which includes a displaceable anchor. The anchor acts upon the contact bridge when it is switched on or off such that the corresponding main contact is opened and closed. In at least one embodiment, the method includes: a) the displaceable contact bridge of the at least one main contact recognizes when an opening point has been exceeded after being switched off, and b) the additional operation of the switching device is interrupted, according to a predetermined duration of time, when the opening point is not exceeded.

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