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Fukushima I (Dai-Ichi), nuclear power plant, Japan
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Fukushima I (Dai-Ichi), Nuclear Power Plant, Japan

On March 26, 2009 unit 3 had problems with over-insertion of control blades during outage. Repair work was being done on equipment that regulates the driving pressure for the control blades, and when a valve was opened at 2:23pm a control blade drift alarm went off. On later inspection it was found that several of the rods had been unintentionally inserted.
On November 2, 2010 unit 5 had an automatic SCRAM while an operator was conducting an adjustment to the control blade insertion pattern. The SCRAM was caused by a reactor low water level alarm. The turbine tripped along with the reactor and there was no radiation injury to workers.

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Keywords:#fukushima #dai #ichi #nuclear #power #plant #japan
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Date added:Apr 07, 2011
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