@inproceedings{oai:repo.qst.go.jp:00054929,
 author = {Tobari, Hiroyuki and Kashiwagi, Mieko and Watanabe, Kazuhiro and Maejima, Tetsuya and Yamashita, Yasuo and Dairaku, Masayuki and Oda, Yuki and Sasaki, Shunichi and Kojima, Atsushi and Umeda, Naotaka and Yamanaka, Haruhiko and Shibata, Naoki and Oohara, Shinya and Suto, Tetsuya and Kawakami, Hiroyuki and 戸張 博之 and 柏木 美恵子 and 渡邊 和弘 and 前島 哲也 and 大楽 正幸 and 佐々木 駿一 and 小島 有志 and 梅田 尚孝 and 山中 晴彦 and 柴田 直樹},
 book = {Proceedings of 27th IAEA Fusion Energy Conference (FEC2018)},
 month = {Oct},
 note = {In order to realize the DC 1 MV power supply system for ITER neutral beam injector (NBI) and NB test facility (NBTF), insulation technologies in oil, gas, vacuum and with water have been developed. To supply cooling water and high-temperature water, mechanical and electrical properties of fiber reinforce plastic (FRP) with water absorption was clarified. The mock-up of FRP tube was fabricated and pressure tightness and voltage capability was confirmed. As for high-temperature water supply to the plasma grid, the water resistivity up to 180 oC was experimentally measured and the high-temperature water channel was successfully designed. Based on those developments, manufacturing and installation for the power supply components for the NBTF/MITICA has been progressed and completed. Finally, to verify the voltage holding capability of the DC 1 MV power supply component, high-voltage test has been started by filling SF6 gas inside the components. That was the first high-voltage test in the NBTF/MITICA power supply under the assembled configuration with all components procured by Japan. As an initial test, high-voltage of DC 1.2 MV was applied on the DC generators and DC filter. As a result, stable voltage holding without breakdown for 1 hour was successfully confirmed.},
 title = {COMPLETION OF DC 1 MV POWER SUPPLY SYSTEM FOR ITER NEUTRAL BEAM TEST FACILITY},
 year = {2018}
}