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Re: [imnotclever] People of the West Coast:
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rrrADAM
Mar 11, 2011, 6:23 PM
Views: 2338
Registered: Dec 19, 1999
Posts: 17553
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imnotclever wrote: rrrADAM wrote: The devastation in Japan is terrible, and there is a lot of loss of life... But I am more worried about the nuke site out there that has lost offsight power and the EDG's didn't start, so they have no power... And that is BAD!!! They need to get those things up and running, and/or get power back to that plant, ASAP. Edit... Emergency Diesel Generators sounds like one of them lost cooling too. That can't be good.
Exactly! They lost cooling, BECAUSE they have no power. Cooling is provided by circulating water with pumps, which require power, either electrical power, or steam. If a unit is offline, it is all electric pumps that provide that cooling. When offsite power is lost, the EDGs provide the power to safely shut down the unit(s) and provide power.
They need to get the EDGs up and running and/or restore offsite power.
#1 is to keep the fuel cool.
Note - The EDGs, of which there are more than one, are have numerous redundant systems, so they CANNOT fail. They are designed, as a system, to be failsafe, since a lot rides on it. I cannot, for the life of me, see how all of them could fail.
At US plants, even when we take one out of service to work on it, making it unavailable, we eneter an LCO (Limited Condidtion of Operation), and have a set time to get it available, or we have to take the unit(s) offline until we get it back in an avaliable status.
(This post was edited by rrrADAM on Mar 11, 2011, 6:28 PM)
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Edit Log:
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Post edited by rrrADAM
() on Mar 11, 2011, 6:25 PM
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Post edited by rrrADAM
() on Mar 11, 2011, 6:28 PM
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