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U.S. Department of Energy
Office of Scientific and Technical Information

HTS coil development and fabrication. Final report

Technical Report ·
DOI:https://doi.org/10.2172/503501· OSTI ID:503501

The objective of this subtask (Task 2C) was to develop high-temperature superconductor (HTS) coil technology aimed specifically at superconducting generator applications. Bi-2223 tape produced in a separate subtask (Task 2A) was first wound and tested in a small circular coil. This small coil winding experience led the authors to develop a tape strengthening method using a lamination process and to develop a turn insulation method using a paper wrap process. A prototype racetrack coil was wound using 2500 feet of the laminated and insulated Bi-2223 tapes. The racetrack coil was cooled to 20K in a vacuum dewar using a unique closed-cycle helium gas refrigeration system.

Research Organization:
General Electric Co., Schenectady, NY (United States)
Sponsoring Organization:
USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
DOE Contract Number:
FC36-93CH10589
OSTI ID:
503501
Report Number(s):
DOE/CH/10589--T2; ON: DE97007749
Country of Publication:
United States
Language:
English