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Journal Articles

Development and test results of a 60kA HTS current lead for fusion application

Isono, Takaaki; Hamada, Kazuya; Kawano, Katsumi; Abe, Kanako*; Nunoya, Yoshihiko; Sugimoto, Makoto; Ando, Toshinari*; Okuno, Kiyoshi; Bono, Takaaki*; Tomioka, Akira*; et al.

Teion Kogaku, 39(3), p.122 - 129, 2004/03

JAERI has been developing a large-capacity high-temperature superconductor (HTS) current lead for fusion application, and succeeded in fabricating and testing a 60kA HTS current lead satisfying ITER requirements. Targets of performance are 1/10 heat leak and 1/3 electric power consumption of cryogenic system compared with a conventional lead. To achieve the target, selection of sheath material of HTS, optimizing the Cu part, reduction of joule heat at joint between HTS and Cu parts, improve of heat transfer between HTS and stainless steel tube. Developed 60kA HTS current lead satisfied the design condition and almost achieved the targets. Adoption of the HTS current lead can reduce 13% electric power consumption of cryogenic system for ITER.

Journal Articles

Test results of 60-kA HTS current lead for fusion application

Isono, Takaaki; Kawano, Katsumi; Hamada, Kazuya; Matsui, Kunihiro; Nunoya, Yoshihiko; Hara, Eiji*; Kato, Takashi; Ando, Toshinari*; Okuno, Kiyoshi; Bono, Takaaki*; et al.

Physica C, 392-396(Part2), p.1219 - 1224, 2003/10

A 60-kA high-temperature-superconductor (HTS) current lead has been fabricated and tested for aiming at the application to a fusion magnet system, providing a low heat leak current lead. The design of HTS current leads is optimized not only to reduce the heat leak but also to perform safe operation even in fault conditions. The HTS current lead consists of a forced flow cooled copper part and a conduction cooled HTS part. The HTS part is composed of 288 Ag-10at.%Au sheathed Bi-2223 tapes and they are cylindrically arrayed on a stainless steel tube. The diameter and the length of the HTS part are 146 mm and 300 mm, respectively. Operation of a 60 kA current, which is the world record, was successfully achieved at coolant of 20 K, 3.2 g/s for the copper part, and a low heat leak of 5.5 W at 4.2 K was demonstrated. This result shows that the electric power of a refrigerator to cool the current lead can be reduced by 1/3 of that in a conventional current lead. In conclusion, technology of a large HTS current lead for fusion application is established.

Journal Articles

Design of a 60-kA HTS current lead for fusion magnets and its R&D

Ando, Toshinari; Isono, Takaaki; Hamada, Kazuya; Nishijima, Gen; Tsuji, Hiroshi; Tomioka, Akira*; Bono, Takaaki*; Yasukawa, Yukio*; Konno, Masayuki*; Uede, Toshio*

IEEE Transactions on Applied Superconductivity, 11(1), p.2535 - 2538, 2001/03

 Times Cited Count:6 Percentile:42.20(Engineering, Electrical & Electronic)

no abstracts in English

Journal Articles

Test results of high temperature superconductor current lead at 14.5kA operation

Isono, Takaaki; Hamada, Kazuya; Ando, Toshinari; Tsuji, Hiroshi; Yasukawa, Yukio*; Tomioka, Akira*; ; ;

IEEE Transactions on Applied Superconductivity, 9(2), p.519 - 522, 1999/06

 Times Cited Count:8 Percentile:51.47(Engineering, Electrical & Electronic)

no abstracts in English

Journal Articles

Experimental result of 13T-46kA Nb$$_{3}$$Al conductor in SULTAN

Nunoya, Yoshihiko; Oshikiri, Masayuki*; Ando, Toshinari; Takahashi, Yoshikazu; Nakajima, Hideo; Sugimoto, Makoto; Tsuji, Hiroshi; Shimamoto, Susumi; Yamada, Yuichi*;

Proc. of 16th Int. Cryogenic Engineering Conf. /Int. Cryogenic Materials Conf., 0, p.1665 - 1668, 1996/00

no abstracts in English

Journal Articles

Experimental results and design of 50-kA forced-cooled current leads for fusion machine

Takahashi, Yoshikazu; Sugimoto, Makoto; Matsui, Kunihiro; Takano, Katsutoshi*; ; Koizumi, Norikiyo; Nunoya, Yoshihiko; Nakajima, Hideo; Kato, Takashi; ; et al.

Proc. of 16th Int. Cryogenic Engineering Conf. /Int. Cryogenic Materials Conf., 0, p.795 - 798, 1996/00

no abstracts in English

JAEA Reports

Mechanical test of the model coil wound with large conductor

Hiue, Hisaaki*; Sugimoto, Makoto; Nakajima, Hideo; Hasegawa, Mitsuru*; Yasukawa, Yukio*; Yoshida, Kiyoshi; ;

JAERI-M 92-127, 33 Pages, 1992/09

JAERI-M-92-127.pdf:1.29MB

no abstracts in English

Journal Articles

AC loss results of the Nb$$_{3}$$Sn demo poloidal coil(DPC-EX)

Ando, Toshinari; Takahashi, Yoshikazu; Okuno, Kiyoshi; Tsuji, Hiroshi; Hiyama, Tadao; Nishi, Masataka; Tada, Eisuke; Yoshida, Kiyoshi; Koizumi, Norikiyo; Nakajima, Hideo; et al.

IEEE Transactions on Magnetics, 28(1), p.206 - 209, 1992/01

 Times Cited Count:4 Percentile:47.72(Engineering, Electrical & Electronic)

no abstracts in English

Journal Articles

Experimental results of the Nb$$_{3}$$Sn demo poloidal coil(DPC-EX)

Takahashi, Yoshikazu; Yoshida, Kiyoshi; Ando, Toshinari; Hiyama, Tadao; Tsuji, Hiroshi; Nishi, Masataka; Tada, Eisuke; Okuno, Kiyoshi; Koizumi, Koichi; Nakajima, Hideo; et al.

Cryogenics, 31, p.640 - 644, 1991/07

 Times Cited Count:12 Percentile:66.78(Thermodynamics)

no abstracts in English

Journal Articles

Fabrication and test of the Nb$$_{3}$$Sn Demo Poloidal Coil(DPC-EX)

Ando, Toshinari; Hiyama, Tadao; Tsuji, Hiroshi; Takahashi, Yoshikazu; Nishi, Masataka; Tada, Eisuke; Yoshida, Kiyoshi; Okuno, Kiyoshi; Koizumi, Koichi; Nakajima, Hideo; et al.

Fusion Technology 1990, p.243 - 247, 1991/00

no abstracts in English

Journal Articles

Mechanical test ofsuperconducting magnet system for fusion experimental reactor

Sugimoto, Makoto; Yoshida, Kiyoshi; Hasegawa, Mitsuru*; Koizumi, Koichi; Nakajima, Hideo; ; ; ; Yasukawa, Yukio*; Sasaki, Takashi*; et al.

Fusion Technology 1990, p.1530 - 1534, 1991/00

no abstracts in English

JAEA Reports

Manufacturing of superconducting wiggler coil

; Yoshida, Kiyoshi; Isono, Takaaki; Sugimoto, Makoto; Sasaki, Shigemi;

JAERI-M 90-077, 19 Pages, 1990/05

JAERI-M-90-077.pdf:0.74MB

no abstracts in English

Journal Articles

Development of the proto-type conductors and design of the test coil for the fusion experimental reactor

Nishi, Masataka; Takahashi, Yoshikazu; Isono, Takaaki; ; Yoshida, Kiyoshi; Koizumi, Koichi; Tada, Eisuke; Tsuji, Hiroshi; Okuno, Kiyoshi; Ando, Toshinari; et al.

Proc. of IEEE 13th Symp. on Fusion Engineering,Vol. 1, p.780 - 783, 1990/00

no abstracts in English

Journal Articles

Experiments of the 1-m-bore, 30-kA superconducting Demo Poloidal Coils

Okuno, Kiyoshi; Tsuji, Hiroshi; Takahashi, Yoshikazu; Nakajima, Hideo; Kato, Takashi; Isono, Takaaki; Ando, Toshinari; Hiyama, Tadao; Nishi, Masataka; Tada, Eisuke; et al.

Proc. of the IEEE 13th Symp. on Fusion Engineering, p.776 - 779, 1989/00

no abstracts in English

JAEA Reports

Conceptual design study of fusion experimental reactor, FY87 FER; Magnet design

; ; Wachi, Y.*; ; ;

JAERI-M 88-110, 266 Pages, 1988/06

JAERI-M-88-110.pdf:5.97MB

no abstracts in English

JAEA Reports

Japanese contributions to IAEA INTOR Workshop,Phase two A,Part 3; Chapter VI: Electromagnetics

; ; ; Ando, Toshinari; Fujisawa, Noboru; Hasegawa, Mitsuru*; ; ; ; Iida, Hiromasa; et al.

JAERI-M 88-010, 206 Pages, 1988/02

JAERI-M-88-010.pdf:3.83MB

no abstracts in English

JAEA Reports

Conceptual design study of fusion experimental reactor (FY86 FER); Magnet design

; ; ; Wachi, Y.*; ; ;

JAERI-M 87-153, 189 Pages, 1987/09

JAERI-M-87-153.pdf:4.16MB

no abstracts in English

17 (Records 1-17 displayed on this page)
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