Local calorimetry to measure the AC losses in structures of HTS conductors

Author

Ashworth, S.P. ; Suenaga, M.

Author_Institution

Div. of Mater. Sci., Brookhaven Nat. Lab., Upton, NY, USA

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

2200

Lastpage

2203

Abstract

We have previously shown that it is possible to measure losses of a conductor in almost any combination of field and current using calorimetric method. We now extend this technique to structures of conductors where the AC magnetic fields generated by the structure as a whole influence the losses of the individual conductors. Using our calorimetric technique we are able to measure the losses at specific locations within a coil or array. In this paper we present as examples loss measurements made on a simple solenoidal coil and in a multi-tape, high amperage conductor

Keywords

barium compounds; bismuth compounds; calcium compounds; calorimetry; high-temperature superconductors; loss measurement; magnetic fields; strontium compounds; superconducting coils; superconducting tapes; yttrium compounds; 100 kVA; AC losses measurement; AC magnetic fields; Bi-2223 tapes; Bi₂Sr₂Ca₂Cu₃O; HTS conductors structure; YBaCuO; YBaCuo coated conductor; array; calorimetric technique; coil; local calorimetry; multi-tape high amperage conductor; solenoidal coil; Calorimetry; Coils; Conducting materials; Conductors; High temperature superconductors; Insulation; Loss measurement; Magnetic field measurement; Temperature sensors; Thermal conductivity;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920295

Filename

920295