Electromagnetic properties in parallel conductors composed of BI2223 multifilamentary wires for power transformer windings

M. Iwakuma; K. Funaki; H. Shinohara; T. Sadohara; M. Takeo; K. Yamafuji

doi:10.1109/77.614489

Electromagnetic properties in parallel conductors composed of BI2223 multifilamentary wires for power transformer windings

M. Iwakuma, K. Funaki, H. Shinohara, T. Sadohara, M. Takeo, K. Yamafuji

Applied Energy Engineering

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

We studied theoretically AC losses in superconducting parallel conductors exposed to a transverse alternating magnetic field in relation with transposition among the strands. We obtained an analytical expression of the additional coupling loss for the deviation of transposition from an optimum condition. The AC losses for the alternating external field were measured in parallel conductors composed of B12223 and NbTi multifilamentary wires. The additional losses can be well explained by the theoretical expression in a wide range of the amplitude of external field. We also estimated experimentally current distribution among the strands in a solenoidal coil of the parallel conductor and discussed the effect of transposition on the current distribution.

Original language	English
Pages (from-to)	298-301
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	7
Issue number	2 PART 1
DOIs	https://doi.org/10.1109/77.614489
Publication status	Published - Jan 1 1997

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/77.614489

Cite this

@article{ff55cb86e0c8419ca4c7b2901d87af49,

title = "Electromagnetic properties in parallel conductors composed of BI2223 multifilamentary wires for power transformer windings",

abstract = "We studied theoretically AC losses in superconducting parallel conductors exposed to a transverse alternating magnetic field in relation with transposition among the strands. We obtained an analytical expression of the additional coupling loss for the deviation of transposition from an optimum condition. The AC losses for the alternating external field were measured in parallel conductors composed of B12223 and NbTi multifilamentary wires. The additional losses can be well explained by the theoretical expression in a wide range of the amplitude of external field. We also estimated experimentally current distribution among the strands in a solenoidal coil of the parallel conductor and discussed the effect of transposition on the current distribution.",

author = "M. Iwakuma and K. Funaki and H. Shinohara and T. Sadohara and M. Takeo and K. Yamafuji",

year = "1997",

month = jan,

day = "1",

doi = "10.1109/77.614489",

language = "English",

volume = "7",

pages = "298--301",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "2 PART 1",

}

TY - JOUR

T1 - Electromagnetic properties in parallel conductors composed of BI2223 multifilamentary wires for power transformer windings

AU - Iwakuma, M.

AU - Funaki, K.

AU - Shinohara, H.

AU - Sadohara, T.

AU - Takeo, M.

AU - Yamafuji, K.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - We studied theoretically AC losses in superconducting parallel conductors exposed to a transverse alternating magnetic field in relation with transposition among the strands. We obtained an analytical expression of the additional coupling loss for the deviation of transposition from an optimum condition. The AC losses for the alternating external field were measured in parallel conductors composed of B12223 and NbTi multifilamentary wires. The additional losses can be well explained by the theoretical expression in a wide range of the amplitude of external field. We also estimated experimentally current distribution among the strands in a solenoidal coil of the parallel conductor and discussed the effect of transposition on the current distribution.

AB - We studied theoretically AC losses in superconducting parallel conductors exposed to a transverse alternating magnetic field in relation with transposition among the strands. We obtained an analytical expression of the additional coupling loss for the deviation of transposition from an optimum condition. The AC losses for the alternating external field were measured in parallel conductors composed of B12223 and NbTi multifilamentary wires. The additional losses can be well explained by the theoretical expression in a wide range of the amplitude of external field. We also estimated experimentally current distribution among the strands in a solenoidal coil of the parallel conductor and discussed the effect of transposition on the current distribution.

UR - http://www.scopus.com/inward/record.url?scp=0031170099&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031170099&partnerID=8YFLogxK

U2 - 10.1109/77.614489

DO - 10.1109/77.614489

M3 - Article

AN - SCOPUS:0031170099

SN - 1051-8223

VL - 7

SP - 298

EP - 301

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2 PART 1

ER -

Electromagnetic properties in parallel conductors composed of BI2223 multifilamentary wires for power transformer windings

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this