ARC Flashcards
1
Q
What system provides makeup water to the water seals on the ARC Pumps?
A
MWS
2
Q
Above what level in the condenser are you not allowed to run the ARC Pumps?
A
Above 264’ (Suction is at 266’)
3
Q
What is the max power that the ARC Pumps can be used at and why?
A
5% power, After that H2 becomes a concern, may damage stack on explosion…
4
Q
What will trip an ARC Pump?
A
- MSL Rad Monitor >3 times NFPB
- Low Seal water Flow (<10gpm for 10 Sec)
- Under Voltage
5
Q
What happens on a MSL Hi/Hi(or INOP) Rad Alarm to the ARC System?
A
- ARC Pumps Trip
- ARC-AOV105, ARC Pump Suction Line Isolation, will close
6
Q
What is the limit for operating at low power with low vacuum?
A
If vacuum is below 24.6”Hg, and Turbine load is less than 410MWe (30%), Trip the Turbine
