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Unexpected behaviour of core materials of electrical coils at low temperatures

✍ Scribed by P.K. Mukhopadhyay; P. Barat; S.K. Kar; S.K. Bandyopadhyay; P. Sen

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 277 KB
Volume: 34
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(94)90175-9

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✦ Synopsis

Putting magnetic core materials in an electrical coil is not always very desirable as losses in the core materials degrade the performance of the coil. The degradation becomes worse at lower temperatures. We have found that this loss is further accentuated by excitation in the coil. We show here that eddy current loss as well as hysteresis comes into play. Finally we show that, as expected, high Tc superconducting materials are free from these effects.

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