EXPERIMENTAL EVALUATION OF AC LOSSES IN SUPERCONDUCTING MULTIFILAMENTARY WIRES FOR 50/60 HZ USE EXPOSED TO A MAGNETIC-FIELD WITH ARBITRARY ANGLE WITH THE WIRE AXIS

被引：2

作者：

KANETAKA, H ^{[1
]}

UEDA, H ^{[1
]}

EGUCHI, Y ^{[1
]}

IWAKUMA, M ^{[1
]}

FUNAKI, K ^{[1
]}

TAKEO, M ^{[1
]}

YAMAFUJI, K ^{[1
]}

MIYAKE, S ^{[1
]}

KUMANO, T ^{[1
]}

ICHIHARA, M ^{[1
]}

机构：

[1] SHOWA ELECT WIRE & CABLE CO LTD,KAWASAKI,KANAGAWA 210,JAPAN

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1995年 / 5卷 / 02期

关键词：

D O I：

10.1109/77.402653

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In multiple twisted superconducting cables exposed to an external AC transverse magnetic field, a component of magnetic field parallel to the strand axis due to the twisting structure of the cables causes an additional AC loss (longitudinal AC loss) in the strands. At first, we have experimentally evaluated the longitudinal AC loss by an equivalent. measurement with short samples of the strands exposed to an oblique magnetic field to the strand axis. The total loss obtained at 60Hz was equivalent to a direct sum of the hysteresis loss, the coupling-current loss for the transverse component and the additional loss for the longitudinal one, In triple twisted superconducting cables composed of insulated strands, measured AC losses could be also quantitatively explained in the same manner as for the short samples, These results suggest that the longitudinal loss may be dominant in an AC magnetic field with relatively large amplitude along with the coupling-current losses inside and among strands, We also discussed an optimum condition for the twist pitch of the strand to reduce the total AC loss of the strands in the cable.

引用

页码：737 / 740

页数：4

共 7 条

[1]

CARR WJ, 1983, AC LOSS MACROSCOPIC, P134

[2] ADDITIONAL AC LOSSES DUE TO ALTERNATING MAGNETIC FIELD COMPONENT LONGITUDINAL TO STRAND AXIS IN THE ARMATURE WINDING OF FULLY SUPERCONDUCTING GENERATORS [J].

Funaki, K. ;

Kanetaka, H. ;

Ueda, H. ;

Yoshiya, F. ;

Iwakuma, M. ;

Takeo, M. ;

Yamafuji, K. .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) :122-125

[3] THEORETICAL EVALUATION OF LONGITUDINAL AC LOSSES IN LARGE-CAPACITY SUPERCONDUCTING CABLES FOR 50/60 HZ USE [J].

FUNAKI, K ;

UEDA, H ;

YOSHIYA, F ;

IWAKUMA, M ;

TAKEO, M ;

YAMAFUJI, K .

CRYOGENICS, 1993, 33 (02) :190-198

[4]

KANETAKA H, UNPUB EXPT EVALUATIO

[5]

KNAETAKA H, 1994, CRYOGENIC ENG, V29, P317

[6] FILAMENT COUPLING IN MULTIFILAMENTARY SUPERCONDUCTORS IN PULSED LONGITUDINAL FIELDS [J].

RIES, G ;

JUNGST, KP .

CRYOGENICS, 1976, 16 (03) :143-146

[7] EXPERIMENTAL AND THEORETICAL APPROACH OF CURRENT DISTRIBUTIONS AND LOSSES IN SUPERCONDUCTING COMPOSITES FOR FUSION MAGNETS [J].

TURCK, B .

IEEE TRANSACTIONS ON MAGNETICS, 1977, 13 (01) :548-551

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