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Development of U.S./ITER CS Model Coil Turn Insulation

  • Richard P. Reed
  • Paul E. Fabian
  • James B. Schutz
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 44)

Abstract

For the international thermonuclear reactor (ITER), we developed a novel system for electrical insulation of the conductor turns. It consists of a tetrafunctional epoxy with an aromatic-amine cure preimpregnated in a satin-weave S-2 glass that is cowound with Kapton film. This preimpregnated system is fabricated into tape that is wound onto the conductor of each central-solenoid coil layer, cured, and inspected—an on-line process.

Extensive testing has demonstrated that this system is very radiation resistant. We measured the shear, shear/compression, compression, fatigue, thermal contraction, and dielectric strength properties at 77 and 4 K; at 77 K, we conducted large-scale compression-fatigue tests with intermittent turn-to-turn voltage-breakdown measurements of conductor arrays.

Keywords

Dielectric Strength Insulation System Release Cloth Kapton Film Cryogenic Engineer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    R.P. Reed, J.B. Darr, and J.B. Schutz, Short-beam shear testing of candidate magnet insulators, Cryogenics (ICMC supplement), 32: 9–13 (1992).CrossRefGoogle Scholar
  2. 2.
    Screening of Candidate hnsulation Systems for ITER TF Coils, report to MIT Plasma Fusion Center by Composite Technology Development, Inc., Boulder, Colorado and Cryogenic Materials, Inc., Boulder, Colorado (15 August 1993 ).Google Scholar
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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Richard P. Reed
    • 1
  • Paul E. Fabian
    • 2
  • James B. Schutz
    • 3
  1. 1.Cryogenic Materials, Inc.BoulderUSA
  2. 2.Composite Technology Development, Inc.BoulderUSA
  3. 3.Eltron Research, Inc.BoulderUSA

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