Nuke Starts Up, Shuts Down

Wednesday, November 21, 2012 @ 09:11 AM gHale


Shortly after returning to service, PPL’s Susquehanna nuclear power plant Unit 2 in Salem Township, PA, shut down because of a hydraulic oil leak.

Operators disconnected the reactor from the regional power grid to investigate the oil leak on a system that controls the flow of steam into a turbine.

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“Shutting down the reactor is the safest course of action until we can determine the reason for the oil leak and make the necessary repair,” said Timothy S. Rausch, PPL Susquehanna senior vice president and chief nuclear officer. “All systems are functioning as expected to keep the unit in safe condition.”

The oil leak is not affecting employee or public safety and remains within the turbine building. The Unit 1 reactor is operating safely at full power.

Before Unit 2 shut down due to the oil leak, the reactor underwent repairs to the computer system that malfunctioned on Nov. 9 and turbine blades ended up replaced and inspected.

Unit 1 at Susquehanna resumed generating electricity earlier this month after completing a turbine blade inspection.

The inspection found signs of cracking on turbine blades, confirming data from diagnostic equipment installed in the spring of 2012. PPL ended up replacing those blades.



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