Nuclear power unit's generating capacity increase delayed

Sendai nuclear power plant Unit 1 output increase delayed

Kyushu Electric Power Co. said it will delay increases in output at the Sendai nuclear power plant Unit 1 after workers found issues with the cooling system.

The utility said an alarm sounded on a condensate pump of a secondary system while the reactor was at 75 percent. Workers said seawater mixed in the cooling water which caused the alarm. The statement said the seawater would be mixed into the condenser and eliminated by a condensate demineralizer and that operations could continue. Repairs may take up to a week to complete.

The Sendai nuclear power plant 1 restarted earlier this month. It was shut down following the 2011 Fukushima accident. Unit 2 is set to restart later this year.

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