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Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
T. Seki, T. Mutoh, R. Kumazawa, K. Saito, Y. Nakamura, M. Sakamoto, T. Watanabe, S. Kubo, T. Shimozuma, Y. Yoshimura, H. Igami, K. Ohkubo, Y. Takeiri, Y. Oka, K. Tsumori, M. Osakabe, K. Ikeda, K. Nagaoka, O. Kaneko, J. Miyazawa, S. Morita, K. Narihara, M. Shoji, S. Masuzaki, M. Goto, T. Morisaki, B. J. Peterson, K. Sato, T. Tokuzawa, N. Ashikawa, K. Nishimura, H. Funaba, H. Chikaraishi, N. Takeuchi, T. Notake, H. Ogawa, Y. Torii, F. Shimpo, G. Nomura, M. Yokota, C. Takahashi, A. Kato, Y. Takase, H. Kasahara, M. Ichimura, H. Higaki, Y. P. Zhao, J. G. Kwak, H. Yamada, K. Kawahata, N. Ohyabu, K. Ida, Y. Nagayama, N. Noda, T. Watari, A. Komori, S. Sudo, O. Motojima, LHD Experimental Group
Fusion Science and Technology | Volume 50 | Number 2 | August 2006 | Pages 186-191
Technical Paper | Stellarators | doi.org/10.13182/FST06-A1234
Articles are hosted by Taylor and Francis Online.
The long-pulse plasma discharge experiment is an important experiment in the Large Helical Device, which has a superconducting coil system and the capability of steady-state operation. The experiment of long-pulse plasma discharge was carried out using mainly ion cyclotron range of frequencies heating. The maximum plasma duration is 31 min and 45 s, and the total injected heating energy reached 1.3 GJ. Swing of the magnetic axis is adopted as an effective method to scatter the local heat load on the divertor plate during the discharge. The plasma was terminated abruptly by the influx of metallic impurities accompanied by a spark in the vacuum vessel.