Electric Field and Losses in BSCCO-2223/Ag Tapes Carrying AC Transport Current

Jaakko Paasi; Daniel Suchon; Markku Lahtinen; Jan Kokavec; Peter Kottman; Milan Polak

doi:10.1109/77.402647

Electric Field and Losses in BSCCO-2223/Ag Tapes Carrying AC Transport Current

Jaakko Paasi, Daniel Suchon, Markku Lahtinen, Jan Kokavec, Peter Kottman, Milan Polak

Not published at VTT

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7 Citations (Scopus)

Abstract

Electric field and losses in single layer coils wound of 0.75 m long multifilamentary BSCCO-2223/Ag tapes carrying ac transport current have been studied at both 4.2 K and 77 K in the frequency range from 0.01 Hz up to 100 Hz with the main effort to 50 Hz. Current amplitudes IP were ranging from i=Ip/Ic=0.5 to 1.3, critical current IC determined by the standard 1 µV/cm static electric field criterion. IC of Coil 1 was 15 A at 4.2 K and 3 A at 77 K. Losses due to the wide resistive transition of the coils were found to dominate over self-field losses even well below i=1. Therefore the total losses in the whole applicable i range could not be described well by equations based on the critical state model.

Original language	English
Pages (from-to)	713-716
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	5
Issue number	2
DOIs	https://doi.org/10.1109/77.402647
Publication status	Published - Jun 1995
MoE publication type	A1 Journal article-refereed

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abstract = "Electric field and losses in single layer coils wound of 0.75 m long multifilamentary BSCCO-2223/Ag tapes carrying ac transport current have been studied at both 4.2 K and 77 K in the frequency range from 0.01 Hz up to 100 Hz with the main effort to 50 Hz. Current amplitudes IP were ranging from i=Ip/Ic=0.5 to 1.3, critical current IC determined by the standard 1 µV/cm static electric field criterion. IC of Coil 1 was 15 A at 4.2 K and 3 A at 77 K. Losses due to the wide resistive transition of the coils were found to dominate over self-field losses even well below i=1. Therefore the total losses in the whole applicable i range could not be described well by equations based on the critical state model.",

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AU - Paasi, Jaakko

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AU - Kokavec, Jan

AU - Kottman, Peter

AU - Polak, Milan

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AB - Electric field and losses in single layer coils wound of 0.75 m long multifilamentary BSCCO-2223/Ag tapes carrying ac transport current have been studied at both 4.2 K and 77 K in the frequency range from 0.01 Hz up to 100 Hz with the main effort to 50 Hz. Current amplitudes IP were ranging from i=Ip/Ic=0.5 to 1.3, critical current IC determined by the standard 1 µV/cm static electric field criterion. IC of Coil 1 was 15 A at 4.2 K and 3 A at 77 K. Losses due to the wide resistive transition of the coils were found to dominate over self-field losses even well below i=1. Therefore the total losses in the whole applicable i range could not be described well by equations based on the critical state model.

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Electric Field and Losses in BSCCO-2223/Ag Tapes Carrying AC Transport Current

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