AOCT April 25

Question 1

What are the differences between the SI and blackout sequencers dealing with the SWBP

Answer 1

On SI SWBP starts as soon as the SW pump at 20 seconds.
On B/O must have 30psig on the suction of the SWBP after 20 seconds before they come on

Question 2

CV spray suction sources?

Answer 2

RWST until starting lineup at 27% to take suction from the sump

Question 3

NaHO purpose (CV spray)

Answer 3

ensures pH of 8.5 to 11.
iodine removal

Question 4

MDFP and EDFP auto starts?

Answer 4

MDFP starts on 100psig (+/- 5)
EDFP starts on 90psig (+/-5)

Question 5

100 gals a min leak from Spent Fuel

Answer 5

100 gallons a leak leads to AOP/EOP
Anything below this is recoverable from OPs

Question 6

How to unblock an SI

Answer 6

If Pzr pressure goes back above 2000psig, or if above 543 degrees

Question 7

Auto Spray vs Manual spray

Answer 7

Spray
Phase B
SI (only on Auto)
Steam line isolation (only on auto)

Question 8

Suction and power for the demin pump

Answer 8

MCC-8
CST

Question 9

Polishing and primary mix bed

Answer 9

Flow rates: 75-150, 75-300

Question 10

CST levels

Answer 10

50% admin for SBO
26% ITS min.

Question 11

When 1 S/G reaches 75% what happens?

Answer 11

Shuts FRV, Trips MFPs, and trips the turbine

Question 12

Feed reg valves are what?

Answer 12

Reverse acting

Question 13

Souping

Answer 13

running less than 25% causing build up of oil in exhaust system

Question 14

electrical line up

Answer 14

4kv to IBs

Question 15

MFP oil pressures

Answer 15

Low Lube oil pressure trip 6psig
Oil pump starts at 8.5psig
Oil pumps stops at 12.5psig
MCC-4, MCC-3
Needs 8pisg to start