|Only one cooling tower was emitting water vapor Wednesday, evidence of the Unit 1 shut down at Limerick Generating Station. John Strickler/The Mercury|
The disturbance “caused a loss of power to generator cooling equipment” requiring a manual scram, or shutdown, of the reactor around 8:15 a.m., according to Dana Melia, communications manager at the nuclear plant, “A manual scram occurs when the plant’s control room operators insert all of the control rods into the reactor at once, halting the fissioning process and shutting down the reactor,” explained Neil Sheehan of the Nuclear Regulatory Commission.
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Editor's Note: Map of Limerick Nuclear Generating Station.
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