Cooling cycle test of DC superconducting power transmission cable

Hamabe, M.; Fujii, Tomohiro; Sugino, M; Sasaki, Atsushi; Sugimoto, Tsuneaki; Watanabe, Hirofumi; Kawahara, Toshio; Yamaguchi, S.; Ishiguro, Yasuhide; Kawamura, K.

doi:10.1088/1742-6596/234/3/032019

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…Afterward, we carried out experiments on DC characteristics of the cable through the four periods of cooling test [8], [9]. One of the features of the test stand is that the cable consisted of two layers of HTS tapes and nineteen HTS tapes in the one layer were mechanically and electrically isolated each other; therefore, HTS characteristics of these nineteen HTS tapes could be tested individually [8].…”

Section: Introductionmentioning

confidence: 99%

“…One of the features of the test stand is that the cable consisted of two layers of HTS tapes and nineteen HTS tapes in the one layer were mechanically and electrically isolated each other; therefore, HTS characteristics of these nineteen HTS tapes could be tested individually [8]. Using this feature, we have measured the critical currents of these nineteen HTS tapes and have proved that the HTS tapes suffered no damages in their superconducting characteristics after the repetition of the cooling cycles [9]. This test stand also have the features to employ the Peltier current leads as the current leads connected to the HTS tapes in the liquid nitrogen (LN2) in order to reduce the heat leakage through the current leads [7], [8].…”

Section: Introductionmentioning

confidence: 99%

“…Fig. 1 shows (a) a layout of the 20 m-class DC SC-PT cable test stand and (b) a cut-model of the cable core used in the test stand [7]- [9]. The DC SC-PT cable was cooled by the circulation of sub-cooled liquid nitrogen .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Critical Current and Its Magnetic Field Effect Measurement of HTS Tapes Forming DC Superconducting Cable

Hamabe

Sugino

Watanabe

et al. 2011

IEEE Trans. Appl. Supercond.

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We constructed a test stand of 20 m-class DC superconducting power transmission cable in Chubu University, in 2006. The cable consisted of thirty-nine Bi-2223 HTS tapes in two layers; nineteen tapes were used in the first layer and twenty tapes were used in the second layer. One of the features of the cable is that each HTS tape in the first layer is electrically isolated. Therefore, we can apply the current to the individual HTS tapes in the first layer. We measured critical current of the one HTS tape in the first layer when current was applied to the other HTS tapes, and compared the result with the magnetic field calculation due to the applied current. The critical current increased by 2 4% when the current was applied to all other eighteen HTS tapes in the same layer. From the magnetic field calculation, we concluded that the self magnetic field of the measured HTS tape was eliminated at the tape edge by the applied magnetic field from the neighbor HTS tapes, and then the critical current increased.

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Section: Introductionmentioning

confidence: 99%