Main Feedwater, Condensate & TACW (RQ-C-4723)

Question 1

Since OPEN LOOP is part of the pre-heating cycle and adds to plant efficiency, why is it not our “normal” method of TACW cooling

Answer 1

• This could introduce contaminants into the secondary and affect secondary chemistry

Question 2

What are the power supplies for the TACW pumps

Answer 2

• Train B 600V buses

Question 3

On a Reactor trip, if only one train of trip/bypass breakers open what is the impact to FWI?

Answer 3

• FRV’s all close (air from both trains)

- FMOs are train specific (only one train closes)