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:
Jan. 08, 2013
Filed:
Sep. 07, 2005
Shuki Wolfus, Kiryat-Ono, IL;
Alexander Friedman, Tel Aviv, IL;
Yosef Yeshurun, Ganei Tikvah, IL;
Vladimir Rozenshtein, En Harod Ihud, IL;
Zvi Bar-haim, En Harod Ihud, IL;
Shuki Wolfus, Kiryat-Ono, IL;
Alexander Friedman, Tel Aviv, IL;
Yosef Yeshurun, Ganei Tikvah, IL;
Vladimir Rozenshtein, En Harod Ihud, IL;
Zvi Bar-Haim, En Harod Ihud, IL;
Bar Ilan University, Ramat Gan, IL;
Ricor Cryogenic & Vacuum Systems, En Harod Ihud, IL;
Abstract
A current limiting device () comprising for each phase of an AC supply a closed magnetic core () of reduced volume and mass having first and second pairs of opposing limbs (), and at least one AC coil () enclosing opposing limbs () of the magnetic core () and adapted for series connection with a load. A superconducting DC bias coil () encloses a limb) () of the magnetic core () for saturating each of the opposing limbs () in opposite directions by the bias coil (). Under fault conditions, the AC flux in at least one limb counteracts the DC bias flux, bringing the limb out of saturation. Preferably, current is reduced in the DC bias coils thus bringing both opposing limbs of the core out of saturation.