Malfunction forces world’s largest nuclear reactor to shut down

Tokyo Electric Power Company Holdings has taken the precautionary measure following an alarm issue at the Kashiwazaki-Kariwa facility

Japan’s Kashiwazaki-Kariwa nuclear plant, the world’s largest, was shut down a day after restarting, the operator Tokyo Electric Power Company Holdings (Tepco) has said, citing a malfunction in the control rod monitoring system.

In March 2011, a powerful earthquake and an ensuing tsunami caused meltdowns at Japan's Fukushima Nuclear Power Plant...