Self-field effect and current-voltage characteristics of a.c. superconductors

✍ Scribed by M Polák; I Hlásnik; S Fukui; N Ikeda; O Tsukamoto

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 947 KB
• Volume: 34
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(94)90112-0

✦ Synopsis

Current

-voltage characteristics of two superconducting wires for a.c. use in d.c. magnetic fields up to 1 T were studied. They were measured with d.c. transport current as well as with sinusoidal a.c. transport current at frequencies up to 50Hz. Voltage signals due to the self-field effect were obtained and analysed. The measured self-field voltage is also compared with that obtained from calculations based on the critical state model. The self-field losses were estimated by numerical integration of the measured self-field voltage multiplied by instantaneous transport current.