AC losses of Bi2223/Ag superconducting tape measured by transport current method

L. Hu; L. Zhou; J. Wang; P. Zhang; C. Li; S. Yang; Y. He; J. Li

AC losses of Bi2223/Ag superconducting tape measured by transport current method

L. Hu, L. Zhou, J. Wang, P. Zhang, C. Li, S. Yang, Y. He, J. Li

NW Inst. for Nonferrous Metal Res.

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

2 Scopus citations

Abstract

An experimental set-up was designed for measuring the self-field losses of Bi2223/Ag HTS tapes using a transport current method. The frequency of transport current can be freely changed from 0.5 Hz to 1000Hz. Its amplitude can be as much as 100A. The self-field losses of Bi2223/Ag tapes, which are made by the traditional PIT method with the critical current of 15.5A and SC/Ag ratio of about 0.25 were measured at 77K with different frequency transport currents. The results are compared with those predicted by the Norris equations based on the critical state model. When the frequency of AC current is low, the AC losses of Bi2223/Ag multifilamentary tapes are domestically hysterestic; As soon as the frequencies are more than 200 Hz, the eddy current losses can not be neglected.

Original language	English
Pages (from-to)	169-172
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	30
Issue number	3
State	Published - Jun 2001
Externally published	Yes

Keywords

AC loss
Bi2223/Ag
Transport current method

Cite this

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title = "AC losses of Bi2223/Ag superconducting tape measured by transport current method",

abstract = "An experimental set-up was designed for measuring the self-field losses of Bi2223/Ag HTS tapes using a transport current method. The frequency of transport current can be freely changed from 0.5 Hz to 1000Hz. Its amplitude can be as much as 100A. The self-field losses of Bi2223/Ag tapes, which are made by the traditional PIT method with the critical current of 15.5A and SC/Ag ratio of about 0.25 were measured at 77K with different frequency transport currents. The results are compared with those predicted by the Norris equations based on the critical state model. When the frequency of AC current is low, the AC losses of Bi2223/Ag multifilamentary tapes are domestically hysterestic; As soon as the frequencies are more than 200 Hz, the eddy current losses can not be neglected.",

keywords = "AC loss, Bi2223/Ag, Transport current method",

author = "L. Hu and L. Zhou and J. Wang and P. Zhang and C. Li and S. Yang and Y. He and J. Li",

year = "2001",

month = jun,

language = "英语",

volume = "30",

pages = "169--172",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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number = "3",

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TY - JOUR

T1 - AC losses of Bi2223/Ag superconducting tape measured by transport current method

AU - Hu, L.

AU - Zhou, L.

AU - Wang, J.

AU - Zhang, P.

AU - Li, C.

AU - Yang, S.

AU - He, Y.

AU - Li, J.

PY - 2001/6

Y1 - 2001/6

N2 - An experimental set-up was designed for measuring the self-field losses of Bi2223/Ag HTS tapes using a transport current method. The frequency of transport current can be freely changed from 0.5 Hz to 1000Hz. Its amplitude can be as much as 100A. The self-field losses of Bi2223/Ag tapes, which are made by the traditional PIT method with the critical current of 15.5A and SC/Ag ratio of about 0.25 were measured at 77K with different frequency transport currents. The results are compared with those predicted by the Norris equations based on the critical state model. When the frequency of AC current is low, the AC losses of Bi2223/Ag multifilamentary tapes are domestically hysterestic; As soon as the frequencies are more than 200 Hz, the eddy current losses can not be neglected.

AB - An experimental set-up was designed for measuring the self-field losses of Bi2223/Ag HTS tapes using a transport current method. The frequency of transport current can be freely changed from 0.5 Hz to 1000Hz. Its amplitude can be as much as 100A. The self-field losses of Bi2223/Ag tapes, which are made by the traditional PIT method with the critical current of 15.5A and SC/Ag ratio of about 0.25 were measured at 77K with different frequency transport currents. The results are compared with those predicted by the Norris equations based on the critical state model. When the frequency of AC current is low, the AC losses of Bi2223/Ag multifilamentary tapes are domestically hysterestic; As soon as the frequencies are more than 200 Hz, the eddy current losses can not be neglected.

KW - AC loss

KW - Bi2223/Ag

KW - Transport current method

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M3 - 文章

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SN - 1002-185X

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JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 3

ER -

AC losses of Bi2223/Ag superconducting tape measured by transport current method

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