Patent · US Active

Contact system for a short-circuiting device in a medium-voltage or high-voltage switchboard plant

US7935907B2 · kind B2 · utility

1Cited by

10References

18Claims

0Family size

Assignee

ABB TECHNOLOGY AG · CH

Inventors

Robert Espeseth · Skien, NO
Ole Granhaug · Skien, NO
Jan-Henrik Kuhlefelt · Skien, NO
Thor Endre · Skien, NO

Key dates

Filing date	Jan 24, 2007
Grant date	May 3, 2011
Priority date	—
Expiry date	Oct 13, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2003/0273
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A contact system for a short-circuiting device for a switchboard, the contact system including at least one fixed contact piece connected to a main voltage source. The contact system also includes at least one moving contact piece and an insulating screen penetrable using the at least one moving contact piece so as to make contact between the at least one moving contact piece and the at least one fixed contact piece. The screen is disposed between the at least one fixed contact piece and the at least one moving contact piece.

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