AC Losses in Multifilamentary Bi-2223/Ag Superconducting Tapes

J. Paasi; M. Lahtinen; D. Aized; S. Fleshler; G. Snitchler; A. P. Malozemoff

doi:10.1109/20.511454

AC Losses in Multifilamentary Bi-2223/Ag Superconducting Tapes

J. Paasi^*
, M. Lahtinen
, D. Aized
, S. Fleshler
, G. Snitchler
, A. P. Malozemoff

^*Corresponding author for this work

Not published at VTT

Tampere University of Technology (TUT)
American Superconductor Corporation (AMSC)

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

12 Citations (Scopus)

Abstract

In this study we examined ac losses in a multifilamentary Bi-2223/Ag superconducting tape carrying ae transport current. The tape consisting of 85 filaments was helically wound to a single-layer coil. The losses were measured at 77 K in the frequency range from 1 Hz up to 250 Hz. Current amplitudes I_p were ranging from i=I_p/I_c=0.6 to 1.5, critical current I_c=15.4 A determined by the standard 1 μV/cm static electric field criterion. The roles of special loss components were considered: hysteresis, flux-creep, coupling and eddy current losses. Hysteresis losses due to the self-field of the ac transport current were found to dominate when i≤1.1. Resistive losses dominated when i>1.2. In the hysteretic regime, the higher the frequency, the smaller the losses per cycle.

Original language	English
Pages (from-to)	2792-2795
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	32
Issue number	4 PART 2
DOIs	https://doi.org/10.1109/20.511454
Publication status	Published - 1 Dec 1996
MoE publication type	A1 Journal article-refereed

Access to Document

10.1109/20.511454

Cite this

@article{fbbae4a4f5b243f1a68fdf4f4c1b56b5,

title = "AC Losses in Multifilamentary Bi-2223/Ag Superconducting Tapes",

abstract = "In this study we examined ac losses in a multifilamentary Bi-2223/Ag superconducting tape carrying ae transport current. The tape consisting of 85 filaments was helically wound to a single-layer coil. The losses were measured at 77 K in the frequency range from 1 Hz up to 250 Hz. Current amplitudes Ip were ranging from i=Ip/Ic=0.6 to 1.5, critical current Ic=15.4 A determined by the standard 1 μV/cm static electric field criterion. The roles of special loss components were considered: hysteresis, flux-creep, coupling and eddy current losses. Hysteresis losses due to the self-field of the ac transport current were found to dominate when i≤1.1. Resistive losses dominated when i>1.2. In the hysteretic regime, the higher the frequency, the smaller the losses per cycle.",

author = "J. Paasi and M. Lahtinen and D. Aized and S. Fleshler and G. Snitchler and Malozemoff, \{A. P.\}",

year = "1996",

month = dec,

day = "1",

doi = "10.1109/20.511454",

language = "English",

volume = "32",

pages = "2792--2795",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

number = "4 PART 2",

}

TY - JOUR

T1 - AC Losses in Multifilamentary Bi-2223/Ag Superconducting Tapes

AU - Paasi, J.

AU - Lahtinen, M.

AU - Aized, D.

AU - Fleshler, S.

AU - Snitchler, G.

AU - Malozemoff, A. P.

PY - 1996/12/1

Y1 - 1996/12/1

N2 - In this study we examined ac losses in a multifilamentary Bi-2223/Ag superconducting tape carrying ae transport current. The tape consisting of 85 filaments was helically wound to a single-layer coil. The losses were measured at 77 K in the frequency range from 1 Hz up to 250 Hz. Current amplitudes Ip were ranging from i=Ip/Ic=0.6 to 1.5, critical current Ic=15.4 A determined by the standard 1 μV/cm static electric field criterion. The roles of special loss components were considered: hysteresis, flux-creep, coupling and eddy current losses. Hysteresis losses due to the self-field of the ac transport current were found to dominate when i≤1.1. Resistive losses dominated when i>1.2. In the hysteretic regime, the higher the frequency, the smaller the losses per cycle.

AB - In this study we examined ac losses in a multifilamentary Bi-2223/Ag superconducting tape carrying ae transport current. The tape consisting of 85 filaments was helically wound to a single-layer coil. The losses were measured at 77 K in the frequency range from 1 Hz up to 250 Hz. Current amplitudes Ip were ranging from i=Ip/Ic=0.6 to 1.5, critical current Ic=15.4 A determined by the standard 1 μV/cm static electric field criterion. The roles of special loss components were considered: hysteresis, flux-creep, coupling and eddy current losses. Hysteresis losses due to the self-field of the ac transport current were found to dominate when i≤1.1. Resistive losses dominated when i>1.2. In the hysteretic regime, the higher the frequency, the smaller the losses per cycle.

UR - https://www.scopus.com/pages/publications/0030188628

U2 - 10.1109/20.511454

DO - 10.1109/20.511454

M3 - Article

AN - SCOPUS:0030188628

SN - 0018-9464

VL - 32

SP - 2792

EP - 2795

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4 PART 2

ER -

AC Losses in Multifilamentary Bi-2223/Ag Superconducting Tapes

Abstract

Access to Document

Other files and links

Fingerprint

Cite this