日本柏崎刈羽核电站再次启动

Core Viewpoint - Tokyo Electric Power Company (TEPCO) has restarted the No. 6 reactor at the Kashiwazaki-Kariwa Nuclear Power Plant after a temporary shutdown for fault investigation, marking a significant step in the company's nuclear operations post-Fukushima disaster [1] Group 1: Reactor Restart Details - The No. 6 reactor was restarted on February 9, 2023, at 14:00 local time, with plans to reach critical status on the same day and begin trial power generation and transmission on February 15 [1] - Following the trial phase, TEPCO will conduct further inspections and a comprehensive load performance test on March 18 before commencing commercial operations [1] Group 2: Previous Shutdown and Fault Investigation - The reactor was initially restarted on January 21, 2023, marking the first restart of a TEPCO nuclear plant since the Fukushima incident in 2011 [1] - A fault occurred on January 22 during the control rod extraction process, triggering alarms due to overly sensitive settings of a frequency converter, which misinterpreted normal current fluctuations as anomalies [1] - TEPCO determined that the alarm from the frequency converter was not essential for safety and decided to disable it, as there is an alternative alarm system for the control rods [1]