AC losses of HTS power transmission cables using Bi-2223 tapes with twisted filaments

Mukoyama, S.; Miyoshi, K.; Tsubouti, H.; Tanaka, Hiroki; Takagi, A.; Wada, K.; Megro, S.; Honjo, S.; Mimura, Tomoo; Takahashi, Yoshihisa

doi:10.1109/77.920293

Cited by 7 publications

(1 citation statement)

References 4 publications

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“…An effective method for reducing AC losses in HTS cables with a multi-layer conductor was to suppress the electromagnetic coupling between layers and between filaments by equalizing the current distribution of each layer by adjusting the winding pitches and using twisted filaments in the Bi-2223 tape [1], [2].…”

Section: Introductionmentioning

confidence: 99%

Measurement of ac losses of superconducting cable by calorimetric method and development of HTS conductor with low AC losses

Yagi

Tanaka

Mukoyama

et al. 2003

IEEE Trans. Appl. Supercond.

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To achieve compact and highly efficient HTS power transmission cables, reducing and evaluating AC losses is important. Furukawa is developing conductors with low AC losses of 1 W/m at 3000 Arms for the 66/77 kV class HTS cables as a part of the Super-ACE project. Specifically, we aim to achieve a superconducting conductor with minimum AC losses by optimizing the winding pitches and twisted filaments in the tape.The electrical method is generally used to evaluate AC losses in HTS cables. However, measures of AC losses were uncertain using only the electrical method of evaluation. Therefore, the calorimetric device was developed and was used for determining AC losses. Consequently, results from the two methods almost agreed. Moreover, AC losses in the fabricated HTS conductors were measured at the lowest levels ever achieved.

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Section: Introductionmentioning

confidence: 99%