The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2002
Filed:
Jan. 17, 2001
Applicant:
Inventor:
Kjell Svensson, Ludvika, SE;
Assignee:
ABB AB, Vasteras, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 5/40 ;
U.S. Cl.
CPC ...
H02M 5/40 ;
Abstract
A plant for transmitting electric power which employs a first combination of a turn off semiconductor and controllable semiconductor connected in antiparallel and a second combination of a turn off semiconductor and antiparallel wherein the first combination is alternately conducting and blocking current for producing an alternating current output and the second combination is conducting during normal operation of the plant. When a fault occurs, a disconnect switch opens and separates the plant from other plants located on the network.