Patent · US Active

Contact drive arrangement

US7652221B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

ABB TECHNOLOGY AG · CH

Inventors

Henrik Lohrberg · Frankfurt am Main, DE
Joachim Eggers · Erlangen, DE

Key dates

Filing date	Dec 5, 2007
Grant date	Jan 26, 2010
Priority date	—
Expiry date	Feb 11, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2003/3094
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The disclosure relates to a contact drive arrangement for the movement of at least one contact in high-voltage switchgear systems having a contact drive and having an auxiliary switch, which has at least two auxiliary contacts. The contact drive works together with the at least one contact and with a first auxiliary contact. Furthermore, a delay drive is connected functionally in parallel with the contact drive, and the delay drive works together with a second auxiliary contact. The first and second auxiliary contact are electrically connected in series. In addition, the delay drive has a damping element, and by means of the damping element the time for a switching operation is extended in comparison with the time for a switching operation with the contact drive.

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