James Aruthur Ferner
Engineers in Battle Ground, WA
License number
Colorado 10408
Issued Date
Apr 24, 1971
Renew Date
Aug 1, 2002
Expiration Date
Jul 31, 2004
Type
Professional Engineer
Address
Address
PO Box 1992, Battle Ground, WA 98604
Professional information
Overlapped Superconducting Inductive Device
US Patent:
2005021, Sep 29, 2005
Filed:
Mar 29, 2004
Appl. No.:
10/811746
Inventors:
Thomas Baldwin - Tallahassee FL, US
James Ferner - Battle Ground WA, US
James Ferner - Battle Ground WA, US
International Classification:
H01F030/12
US Classification:
336005000
Abstract:
An electrical device operating on the principle of induction, such as a transformer. The device employs High Temperature Superconductors to build pancake coils having a very low height to diameter ratio. These pancake coils are placed around ferromagnetic core legs as in a conventional transformer. In multiphase applications, the low height to diameter ratio of the pancake coils causes the transformer to become quite wide. The present invention proposes overlapping the adjacent pancake coils in a multiphase induction device to reduce the width. A specific example of a 3-phase power transformer is presented.