Theory of AC Loss in Cables with 2G HTS Wire

Conference · Sun Sep 13 00:00:00 EDT 2009

OSTI ID:965386

Clem, J R; Malozemoff, A P

While considerable work has been done to understand AC losses in power cables made of first generation (1G) high temperature superconductor (HTS) wires, use of second generation (2G) HTS wires brings in some new considerations. The high critical current density of the HTS layer 2G wire reduces the surface superconductor hysteretic losses. Instead, gap and polygonal losses, flux transfer losses in imbalanced two layer cables and ferromagnetic losses for wires with NiW substrates constitute the principal contributions. Current imbalance and losses associated with the magnetic substrate can be minimized by orienting the substrates of the inner winding inward and the outer winding outward.

• Research Organization: Ames Lab., Ames, IA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-07CH11358
• OSTI ID: 965386
• Report Number(s): IS-M 953; TRN: US200919%%580
• Resource Relation: Conference: 9th European Conference on Applications of Superconductivity, Dresden, Germany, Sept. 13-17, 2009
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AC LOSSES
CABLES
CRITICAL CURRENT
SUBSTRATES
SUPERCONDUCTIVITY
SUPERCONDUCTORS