The transient stability of a Nb-Ti, cable-in-conduit conductor cooled with supercritical helium was investigated experimentally by inductively heating the conductor for short-time durations. Data were gathered for zero and nonzero imposed flow rates. In addition, some of the zero-flow measurements w
Empirical investigation of factors affecting the stability of cable-in-conduit superconductors
β Scribed by J.R. Miller
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 534 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0011-2275
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β¦ Synopsis
Experiments investigating the stability of cable-in-conduit superconductors were performed using test conductors composed of small, quadruplex cables enclosed in steel tubes. To examine the effects of a variation in stabilizer resistivity, all test conductors contained two strands of identical NbTi/Cu composite superconductor and two strands of solid copper. The grade of copper was varied for each test conductor so that a different net stabilizer resistivity existed for each conductor. When these conductors were operated outside the range of multiple stability, tests showed that their stability was negligibly affected by stabilizer resistivity; conversely, the range of operating currents for which multiple stability occurs was affected. However, the surprising result of this study is that stability is apparently affected when a large fraction of the copper stabilizer is segregated into separate cable strands. These observations are compared with other data in the literature.
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