Thermal stability of conduction-cooled HTS coils. Thermal runaway evaluation tests
Creators
- 1. TOSHIBA Corporation, Industrial and Power Systems and Services Company, Power and Industrial Systems R and D Center, Yokohama, Kanagawa (Japan)
- 2. Tokyo Inst. of Technology, Graduate School of Science and Engineering, Yokohama, Kanagawa (JP)
- 3. Kyushu Electric Power Co., Inc., Research Laboratory, Fukuoka, Fukuoka (JP)
- 4. Kyushu Univ., Research Inst. of Superconductor Science and Systems, Hakozaki, Fukuoka (JP)
Description
HTS wires have been improved to the extent that they have practical properties, and various HTS coils have been designed and fabricated. One of the features of an HTS coil is high thermal stability against thermal disturbances. The minimum quench energy (MQE) of an HTS coil is several orders higher than that of an LTS coil. However, thermal runaway, which shows almost the same phenomenon as quenching observed in an LTS coil, is observed in a conduction-cooled HTS coil when the HTS coil is operated under a high load factor. Thermal runaway causes degradation of an HTS coil, so it is important to quantitatively evaluate the thermal runaway currents of a conduction-cooled HTS coil. This paper shows the thermal runaway evaluation test results for a conduction-cooled HTS coil wound with an Ag-sheathed Bi2223 wire. (author)
Additional details
Publishing Information
- Journal Title
- Teion Kogaku
- Journal Volume
- 40
- Journal Issue
- 10
- Journal Page Range
- p. 404-411
- ISSN
- 0389-2441
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 37019131
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BISMUTH COMPOUNDS; COOLING; CRITICAL CURRENT; CRITICAL TEMPERATURE; EVALUATION; EXCURSIONS; HIGH-TC SUPERCONDUCTORS; MAGNETIC FIELDS; STABILITY; SUPERCONDUCTING COILS; SUPERCONDUCTING WIRES; TENSILE PROPERTIES; THERMAL TESTING; TIME DEPENDENCE
- Descriptors DEC
- ACCIDENTS; CURRENTS; ELECTRIC COILS; ELECTRIC CURRENTS; ELECTRICAL EQUIPMENT; EQUIPMENT; MATERIALS TESTING; MECHANICAL PROPERTIES; NONDESTRUCTIVE TESTING; PHYSICAL PROPERTIES; REACTOR ACCIDENTS; SUPERCONDUCTORS; TESTING; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE; TYPE-II SUPERCONDUCTORS; WIRES
Optional Information
- Notes
- 9 refs., 11 figs., 4 tabs.