학술논문
Development and Performance Test Results of 50kA Vapor-cooled Current Lead for ITER
Document Type
Journal Article
Author
Atsumi TERASAWA; Fumio TAJIRI; Hideo NAKAJIMA; Hiromi HANAWA; Hiroshi TSUJI; Hiroshi WAKABAYASHI; Ikuo ITOH; Ikuo WATANABE; Junichi OKAYAMA; Katsumi KAWANO; Katsunori AZUMA; Katsutoshi TAKANO; Kazuya HAMADA; Kiichi OOTSU; Kiyoshi TAKITA; Kouichi IMAHASHI; Kunihiro MATSUI; Makoto SUGIMOTO; Masanobu NOZAWA; Masanobu TANEDA; Masayuki KONNO; Masayuki OSHIKIRI; Norikiyo KOIZUMI; Shinichi NOSE; Shuichi SEKI; Shuichi SEKIGUCHI; Tadaaki HONDA; Tadao HIYAMA; Takaaki ISONO; Takashi KATO; Takeshi OHUCHI; Tomonobu ITO; Toshiaki UEHARA; Toshinari ANDO; Toshio UEDE; Tsutomu KAWASAKI; Yasuhiro UNO; Yoshihiko NUNOYA; Yoshikazu TAKAHASHI; Yoshiyuki TAKAYA; Yukio YASUKAWA
Source
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 1998, 33(8):549
Subject
Language
English
ISSN
0389-2441
1880-0408
1880-0408
Abstract
JAERI has developed 50kA current leads for the International Thermonuclear Experimental Reactor (ITER). The Center Solenoid (CS) Model Coil program is under way by means of international collaboration in ITER-EDA. The CS model coil is being developed for ITER CS coil and is for demonstration for ITER construction. The performance test of the CS model coil will be carried out at the JAERI ITER common test facility (CTF). The current lead consists of the vertical lead and the connection lead. The vertical lead is a vapor-cooled type and has a cable-in-conduit geometry. The vertical lead was designed with a heat leak of 1.2W/kA at a helium flow rate of 0.06g/(s·kA). The measured heat leak satisfied the designed value. The connection lead was made from copper pipe soldered with NbTi supreconducting wires. The pipe was stabilized by the supreconducting wires and a cooling channel. The current lead was operated up to 60kA. The design and the performance test results of 50kA current leads are reported. The results meet the specifications for the CS model coil test and for the ITER real machine.