IOI Flashcards
When does FWLC transfer to single element?
26% Rx power
When should FWLC to start-up level control?
3 mlbm/hr
62.2% core flow is how many mlbm/hr?
70 mlbm/hr
When is aux cooling tower put in service?
before 75%
When should all heater drain pumps be pumping forward, or ensure all condensate and condensate booster pumps are running?
approx 70%
What is max power with first stage and/or second stage MSR out of service?
95%
max power with one LPFWH string and 1 first stage reheater out of service?
90%
What’s the max power with 1 HDP out of service?
88%
What’s the max power with 2 HDP out of service?
79%
What is max power with 1 HPFWH out of service?
95%
What is max power with 1 LPFW heater out of service?
90%
What is max power with 1 LPFWH and 1 HPFWH out of service?
90%
What is rated steam flow and feed flow?
Steam – 18.97 mlbm/hr
FW – 18.94 mlbm/hr
What is rated core flow?
112.5 mlbm/hr
what is max tech spec steam dome pressure?
< 1045 psig
what is feedwater temp?
420 deg F
What is core thermal power?
<= 4408 MWt
What is the turbine roll-up ladder?
240 rpm - turning gear FE01 valve closes
400 rpm - vibrations
540 rpm - shaft-lift secures
800 rpm - TG standstill secures
1650 rpm - Aux oil pump secures
1800 rpm -- Tg test vent rps transmitters SO temps SCW temps Gen H2 Gen Auxilliaries PW Bypass valves
When should the offgas adsorbers be placed in treat?
936 psig
what should be done at 400 psig?
1 RFPT in service
additional condensate pump in service
When should second RWCU pump and filter be put in service?
> 200 psig
When should you begin warming up the SJAE?
300 psig
When should SJAE be put in service?
300-500 psig
What should be done at 110 psig?
RWCU post pump mode
When should you ensure RCIC is operable?
150 psig
When should RCIC surveillance be performed during startup?
within 12 hours after reaching 150 psig if starting up from refueling outage
what should be done before 60 psig Rx pressure?
warm-up RCIC
Start-up level control in service
one condensate booster pump in service
what should RFPT speed be running at with 1 pump running and 2 pumps running?
1 RFPT – < 5850
2 RFPT < 5800
what are the RFPT critical speeds?
3100-3200 rpms
3279-3379 rpms
When is the ECCS line break annunciation valid?
> 80% Rx power AND > 90% flow
Who can N/A not needed steps in the IOI?
Shift supervision ( shift manager/CRS)
How do you verify all rods in after a scram?
push raw data button (not by looking at all green lights)
what should be done if an uncoupled rod is observed?
enter CRD malfunction ONEP (05-1-02-IV-1)
What is the minimum Rx period?
90 seconds
what should be done if too short of a Rx period is observed?
Insert all control rods to increase period
when should you go to single notch withdrawal?
10 times initial count rate
What is the tech spec and admin limits for heatup/cooldown rates?
tech spec 100 deg F
admin 90 deg F
what temp should feedwater temp be maintained at? why?
> 70 deg F, to protect the FW flued heads
what should drywell pressure be maintained at?
< 1 psig
what is Keff when Rx is exactly critical?
Keff = 1
What is reactor period definition?
time it takes for initial neutron population to change from some initial value to “e” (2.718) times that initial value. Period is measured is seconds.
What is reactor period if there is no change?
infinity
What is doubling time?
time taken for neutron population to double
RX period calculation?
RX period = DT x 1.44
reactor period
change in neutrons from one generation to the next
criticality
increase in counts with no rod motion
approaching criticality? (Control rods_)
use single notch control rods
criticality is expected when?
criticality is expected at any time after the first rod is not full in
M3?
required prior to mode 3 after a hydro pressure test
S
recommended for startup or mode 3
calculate period
1.44 x Doubling time
heatup/cooldown plots
don’t exceed 90F admin and 100F TS (taken every 15 minutes)
Begin single notch withdrawal when?
at 10 times the initial SRM count rate
