Kyodo: Worker panicking while trying “to keep water level up” in reactor during typhoon — Seawater reportedly overran cooling water intake #Taiwan

Published: July 16th, 2013 at 4:44 pm ET
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Kyodo News, July 16, 2013: Human error causes Taiwan’s nuclear plant shutdown [...] Chai Fu-feng, a spokesman of Taiwan Power Co. (Taipower), told Kyodo News that the Unit 2 reactor of the Chinshan nuclear power station in New Taipei City was automatically shut down when instruments detected too much water in the reactor pressure vessel. [...] a plant worker switched off a draining valve to control the heat in the reactor [...] Panicking, he added water to the reactor to keep the water level up, but he added too much water too fast, which eventually caused the reactor to automatically scram, he said. [...]

World Nuclear News, July 16, 2013: [...] winds above 117 kilometres per hour threatened transmission systems. [...] the height of the storm saw damage to Chinshan 2′s main transformer, which triggered an automatic shutdown. A few hours later seawater overran the cooling water intake bringing in plant debris that clogged the debris screen. Later inspection confirmed lightning damage to the main transformer, as well as storm damage to the switchyard insulator and 350 kV overhead lines. [...]

See also: Report: Why did neutrons levels get so high at nuclear reactor at time of typhoon? Did plant suffer a loss of ultimate heat sink, like Fukushima Daiichi? Was there adequate cooling? #Jinshan #Taiwan

Published: July 16th, 2013 at 4:44 pm ET
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