MORRIS, Ill. -- Damage to an electrical transformer caused one reactor to shut down automatically at a northern Illinois nuclear power plant over the weekend.
Unit 2 at the Dresden Nuclear Station shut down Saturday morning, and it remained offline on Sunday as crews worked to fix the damage.
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Dresden spokesman Robert Osgood says the problem is on the non-nuclear side of the plant.
He says the plant responded as expected, and there was no safety threat. He says a second reactor is operating normally, and electrical customers will not be affected.
The plant is in Morris, about 60 miles southwest of Chicago,
It's owned by Exelon Generation.