Japan's Kashiwazaki-Kariwa Nuclear Power Plant to Suspend Power Generation Due to Electrical Leakage

Wedoany.com Report on Mar 14th, Unit 6 of Japan's Kashiwazaki-Kariwa Nuclear Power Plant, which had just restarted in January this year, experienced an electrical leakage in its generator, triggering an alarm. Tokyo Electric Power Company (TEPCO) decided on the same day to suspend power generation and transmission to investigate the cause of the malfunction.

The daily report released by TEPCO on the same day shows that at around 16:00 local time on the 12th, a minor ground fault occurred in the generator of Unit 6 of the Kashiwazaki-Kariwa Nuclear Power Plant, triggering an alarm. Relevant departments are investigating the cause. Currently, the reactor and turbine generator of Unit 6 are still operating, with no significant fluctuations found in equipment parameters or generator output power. There has also been no leakage of radioactive materials to the outside.

Unit 6 of the Kashiwazaki-Kariwa Nuclear Power Plant restarted on January 21 this year. This marks the first restart of a nuclear power plant under TEPCO's management since the Fukushima Daiichi Nuclear Power Plant accident caused by the "3/11" Great East Japan Earthquake in 2011.

Before and after the restart, Unit 6 of the Kashiwazaki-Kariwa Nuclear Power Plant experienced multiple malfunctions. During the operation to withdraw control rods from the reactor in the early hours of January 22, an alarm sounded, prompting TEPCO to decide to temporarily shut down the unit on the same day. After determining that the alarm was triggered by an inverter, the unit was restarted again on February 9. According to reports from Japan's NHK, TEPCO is currently assessing whether the new malfunction will affect the plan for the unit to fully commence commercial operation on March 18.