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Tevatron HTS Power Lead Test
S. Feher
D. Orris
M. Tartaglia
J. C. Tompkins
R. Carcagno
C. Sylvester
Y. Pischalnikov
出版
United States. Department of Energy
, 2004
URL
http://books.google.com.hk/books?id=EGP0jwEACAAJ&hl=&source=gbs_api
註釋
Two pairs of ASC 6 kA power leads developed for the Tevatron were successfully tested at Fermilab at over-current conditions. Stable operation was achieved while operating at a current of 9.56 kA for five hours and while continuously ramping between 0-9.56 kA at a ramp rate of 200 A/s for one hour. The minimum required liquid nitrogen flow rate was measured to be 1.5 g/s at 10 kA. After ramping up to 10 kA at 200A/s, it took only 15 minutes to stabilize the upper copper section of the lead with a flow of 1.8 g/s of liquid nitrogen vapor. Testing under extreme operating conditions--270-370 kPa liquid nitrogen vapor pressure and over 0.1 T external magnetic field--demonstrated that the HTS part of the lead can safely operate in the current sharing mode and that this design has large operating margin.