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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Last, J.R. Jeskins, J.S. Kaye, A.S. Riccardo, V. |
| Copyright Year | 2002 |
| Abstract | The epoxy glass insulation from a JET toroidal field (TF) coil was extensively tested as part of a study to permit operation of JET at a field 20% higher than the design value. The measurements were performed on specimens taken from a coil that had been in use for several years. The JET TF coils are D-shaped and made of two pancakes of 12 copper turns, with 2 mm inter-turn insulation and 6 mm inter-pancake insulation, all wrapped by 7 mm of ground insulation (the total coil cross-section area being about 0.1 m/sup 2/). Most of the tests were carried out on specimens taken from the straight leg of the used coil. Tests on inter-turn insulation included shear strength and shear modulus, fracture tests, micrographic analysis, void and glass-resin content and second order glass transition temperature. Tests on ground insulation included tensile strength and elastic moduli, shear strength and shear modulus, inter-laminar shear strength and elastic modulus, mode 1 and mode 2 fracture tests. The results were not as consistent as might be achieved using laboratory specimens, but we consider that they are more representative of the quality achievable in actual manufacture. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 1238 |
| Ending Page | 1241 |
| Page Count | 4 |
| File Size | 249333 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 12 |
| Issue Number | 1 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Insulation testing Coils Glass Copper Magnetic field measurement Wrapping Scattering Performance evaluation Leg Land surface temperature |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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