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U.S. Department of Energy
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Development and fabrication of a Bi-2223 racetrack coil for generator applications

Conference ·
OSTI ID:505395
; ; ; ;  [1]; ;  [2]
  1. General Electric Co., Schenectady, NY (United States). Corporate Research and Development Center
  2. Intermagnetics General Corp., Latham, NY (United States)

The development and fabrication of a layer-wound, epoxy-impregnated Bi-2223 high-temperature superconducting (HTS) racetrack coil which generates 40,000 ampere-turns of magnetomotive force (MMF) at 25 K is described. The coil was wound using Ag-sheathed Bi-2223 tape conductor laminated with copper foils for strength enhancement and insulated using a paper-wrap method. After epoxy impregnation, the coil was tested over a range of 16--25 K in a vacuum dewar using a closed-cycle helium refrigeration system. Descriptions of the tape lamination and insulation processing, the coil winding and impregnation, and the experimental test setup are given.

Research Organization:
General Electric Co., Schenectady, NY (United States). Corporate Research and Development Center
Sponsoring Organization:
USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
DOE Contract Number:
FC36-93CH10589
OSTI ID:
505395
Report Number(s):
DOE/CH/10589--1; CONF-960850--26; ON: DE97007752
Country of Publication:
United States
Language:
English