Measurement of the ac power loss of (Bi,Pb)2Sr2Ca2Cu3Ox composite tapes using the transport technique

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Abstract
The transport self‐field ac loss voltages of (Bi,Pb)2Sr2Ca2Cu3O x (Bi‐2223) multifilamentary tapes depend strongly on the voltage lead configuration. We have measured the loss voltage as a function of the measuring circuit loop size defined by the voltage leads and the tapes for well‐defined lead geometries. The loss signal was found to reach a limiting value when the length of the loop transverse to the tape was several times the tape width. This limiting voltage represents the ‘‘true’’ self‐field ac loss as predicted by new theoretical analysis.

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