Patent · US Active

Load breaker arrangement

US8213133B2 · kind B2 · utility

2Cited by

5References

7Claims

0Family size

Assignee

SMA Solar Technology AG · DE

Inventors

Stefan Buchhold · Vollmarshausen, DE
Sven Bremicker · Baumbach, DE
Frank Greizer · Kaufungen, DE
Gunther Cramer · Kassel, DE

Key dates

Filing date	Sep 30, 2008
Grant date	Jul 3, 2012
Priority date	—
Expiry date	Sep 16, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A load breaker arrangement includes first and second input terminals, respectively, and first and second output terminals. The arrangement also includes two relays connected in series with one another, wherein the two relays are coupled between the second input terminal and the second output terminal, a semiconductor switch connected in parallel with one of the two relays, and a third relay coupled between the first input terminal and the first output terminal. A control circuit, in a load breaker mode, turns on the semiconductor switch while the two relays and the third relay are closed, then opens the one of the two relays in parallel with the semiconductor switch, then opens the semiconductor switch to break a current between the second input and second output terminals, and then opens the other of the two relays not in parallel with the semiconductor switch and opens the third relay.

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