Officials say an alert was declared Saturday morning, and operators shut down the plant. The alert was canceled Saturday afternoon.
The plant remained shut down although in stable condition. Officials say the plant will return to full power when the equipment is restored.
State Public Safety Secretary Frank Perry said in a news release that there was never a threat to public safety.
Duke Energy and the North Carolina Eastern Municipal Power Agency own the plant. The single-unit power plant began commercial operation in 1987.