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Fault current limiter

United States Patent

October 8, 2013
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A fault current limiter (FCL) includes a series of high permeability posts for collectively define a core for the FCL. A DC coil, for the purposes of saturating a portion of the high permeability posts, surrounds the complete structure outside of an enclosure in the form of a vessel. The vessel contains a dielectric insulation medium. AC coils, for transporting AC current, are wound on insulating formers and electrically interconnected to each other in a manner such that the senses of the magnetic field produced by each AC coil in the corresponding high permeability core are opposing. There are insulation barriers between phases to improve dielectric withstand properties of the dielectric medium.
Darmann; Francis Anthony (Chatswood, AU)
Zenergy Power Pty Ltd (Wollongong, AU)
13/ 215,647
August 23, 2011
GOVERNMENT RIGHTS The United States Government has certain rights in the invention pursuant to a contract with the U.S. Department of Energy.