AOP Basics Flashcards
There is steam biding in the AFW system. The procedure has you check Rx Power less than 97%. Why?
Because cold AFW will raise power
If there is a dropped or misaligned rod, what must Tave-Tref deviation be maintained at?
+/- 3 degreed
East charging pump is in run and the west pump is in neutral. What must be done if the east pump trips off in order to restore pressurizer level control back to normal?
Manually start the west CCP, take charging to minimum, and restore letdown.
What must be done if bus duct cooling is INOPERABLE?
Immediately reduce bus loading to 10,000 amps/phase (~40% turbine load)
How does the turbine trip controller work for steam dumps?
Trips 1 group open at a 10 degree difference and a second group open at a 20 degree delta.
What is affected if one rod falls into the core?
Radial Power Distribution
NOT SDM
During a PR Failure, Tech specs give you 1 hour to
Verify P-7, P-8 and P-10 status
During continuous rod motion, what is the preferred recovery of low RCS temperature to restore equilibrium conditions?
Reduce turbine load
What must be done if a SG Tube leak exceeds 50 gpm?
Trip the Reactor and go to EO
During a loss of CCW, you check CCP status in attempt to save 1 CCP for operations upon CCW Restoration. What do you do in Modes 5-6?
Stop both CCPs
What are the immediate actions of a tripped HDP?
NONE! Check to ensure proper plant response
VCT Level instrument QLC-451 is responsible for _____. Are there any alarms?
Makeup at 14 % to 24%
Divert trips open at 87%
Alarms for High and low level, as well as MU not in auto
Per TS, if a leaky PRZ PORV is not capable of being manually cycled, you have….
1 hour to close block valve and 1 hr to remove power
What are the RO stable parameter Reports?
- Reactor Power- LEFM, NI or DT
- RCS Temp
- RCS Pressure
- PRZ Level
- Delta I
- Controllers in Manual
What issues can the BOP use IFR-001 for?
SG Pressure / Level Control
MFP DP
FW Htr Level
LO Temp
At 99% power and with rods in auto, continuous rod motion begins. Rods are inserted below the low-low RIL. What must be done?
emergency boration
If there is a turbine lagging fire, what must be done?
Send AEO to verify with local observation
If frequency is < 59 Hz but >58.2 Hz Then….
Trip Reactor in 30 mins per E-0
What is the cutoff for containment inspection for a RCS Leak?
> 1 gpm
What must be done if ALL aux building Exhaust fans (both units) fail?
Request RP to verify all AB doors that lead to uncontrolled areas closed AND verify that AB pressure is negative within 30 mins
When recovering a single dropped rod, Why must power be stable? And for how long?
Because of xenon. It should be stable for 48 hrs
If you lose CRID 1 or 4, will the red handle switches work for a manually SI Actuation for that train?
NO!
Each pump must be started manually
Per LTOP TS, if there are 2 CCPs capable of injections, you must….
Immediately restore to max of 1 CCP
What are possible indications of CCW Inleakage?
- Rising Surge Tank Level
- Rad Monitor Alarm
- Rising tritium concentration