RQC-Know Flashcards
What are all the reactor trips with Coincidence and Setpoints?
SR High Flux, 1/2 @ 90,000 cps
IR High Flux, 1/2 @ 22.5% (20%) RTP
PR Hi Flux, Low SP, 2/4 @ 20% RTP
PR Hi Flux, Hi SP, 2/4 @ 107% RTP
PR Hi + Rate, 2/4 @ 4.5% in 2 sec
OP delta T, 2/4 variable
OT delta T, 2/4 variable
PRZ Press Hi, 2/4 @ 2385#
PRZ Press LO, 2/4 @ 1950#
PRZ Water Level Hi, 2/3 @ 92%
RCS Loss of Flow, 2/3 on 1/4 Loops > P8 or 2/3 on 2/4 Loops between P7 and P8 @ 91%
UV- RCP Busses, 1/2 on 2/4 busses @ 88 V
UF- RCP Busses, 1/2 on 2/4 busses @ 58.2 Hx
RCP Breaker Positions, 2/4 Open Aux Switch
SG Water Level LO LO, 2/3 on 1/4 SG @ 5% (22%)
SG Water Level Low w FF < SF, 1/2 on 1/4 SG and 1/2 on same SG @ 15% (26%) and 0.71E6 (1.47E6) lamp/hr
SI either Train
Turbine Trip, 2/3 oil press 800# or 4/4 SVs < 1%
Manual
What are the RPS safety related Functions?
Keep fuel within DNBR and Limit RCS Pressure within design
What are the RPS non-safety related functions?
Initiate turbine trip from Rx Trip and give status and alarm conditions
What are the SI Signals with coincidences and Setpoints?
Manual
Containment Press Hi, 2/3 @ 1#
PRZ Press LO, 2/3 @ 1775#
DP by Steam Lines, 1 SG < 2 Others, 2/3 on any steam line @ 100 psig
SG Press LO, 1/1 on 2 SGs @ 500#
What are the CTS signals with coincidences and setpoints?
Manual
Containment Press Hi Hi, 2/4 @ 2.8#
MUST ENERGIZE
What are the Steam Line Isolation signals with coincendences and setpoints?
Manual
Containment Pressure Hi Hi, 2/4 @ 2.8#
High Steam Flow w P-12, 1/2 on 2 SGs @ 1.42E6 (1.6E6) variable w power
SG Pressrue, 1/1 on 2 SGs @ 500#
What are the Turbine Trip and FWI signals with setpoints and coincidences?
SG Level Hi Hi, 2/3 on 1 SG @ 67%
SI
Rx Trip (P-4) w LO Tavg, either trip breaker open
FWI ONLY, Tave < 554*F on 2/4 loops
What is the peak fuel centerline Safety Limit?
< 5080F decreasing by 58F per 10K MWD/MTU
What does it take for P-4 to be active?
Both Rx Trip A or B and same Bypass Breaker open
What is the function of P-4?
With Low Tavg, gives FWI
Seals in FWI from SI or Hi Hi SG Level
Permits manual block of auto SI Signals
What does it take for P-6 status light to be lit?
Any IR NI >/= 10E-10 Amps
When does P-6 status light go out?
BOTH IR NIs < 6E-11 amps
What is the function of P-6?
Permits manual block of auto SR High Flux Trip
When is P-7 met?
3/4 PRs < 10% AND 2/2 Turbine 1st stage Press < 10%
When is P-7 deactivated?
2/4 PRs > 10% OR 1/2 Turbine 1st stage Pressure > 10%
What is the function of P-7?
Permits auto block of Rx Trips due to “at Power” Trips
- PRZ Press Low
- PRZ Water Level High
- RCS Loss of Flow
- RCP Bus UV
- RCP Bus UF
- RCP Breaker Position
How is P-7 made up?
Reset of P-10 and actuation of P-13
How is P-8 made up?
3/4 PRs = 29%
How is P-8 cleared?
2/4 PRs > 29%
What does P-8 doe?
Permits auto block of Rx Trips due to single loop low flow trips AND Turbine trip
What conditions make up P-10?
2/4 PRs >/= 10%
What conditions clears P-10?
3/4 PRs < 10%
What does P-10 do?
Permits manual block of:
- PR High Flux Trip, Low SP
- IR Trip
- IR Rod Stop
Also
- Resets P-7
- Backup de-energization of SR
What conditions make up P-11?
2/3 PRZ Press < 1920#
What conditions clear P-11?
2/3 PRZ Press >/= 1910#
What does P-11 do?
Permits manual block of SI on low PRZ Pressure
What conditions make up P-12?
2/4 Loop Tavg = 541*F
What conditions clear P-12?
3/4 Loop Tavg > 541*F
What is the function of P-12?
Allows manual block of SI due to low steam line pressure
With High Steam Flow, gives Main Steamline Isolation
Blocks all Steam Dumps
What conditions make up P-13?
2/2 Turbine 1st stage pressures < 10%
What conditions clear P-13?
1/2 Turbine 1st Stage Pressures > 10%
What conditions make up P-14?
2/3 SG NR Levels < 64 % in all 4 SGs
What conditions clear P-14?
2/3 SG NR Levels > 678% in at least 1 SG
What does P-14 do?
Allows or prevents MFW addition.
To prevent it, FWI initiated and MT and MFPs Trip
What is C1?
Auto and Manual Rod stop when 1/2 IR @ 18 %(16%)
What is C-2?
Auto and manual rod stop when 1/4 PR at 103%
What is C-3?
Auto and Manual Rod stop and initiated Turbine runback when 2/4 OT delta T at 3% < Trip Setpoint
What is C-4?
Auto and manual rod stop and initiates turbine runback when 2/4 OP delta T at 3% < trip setpoint
What is C-5?
Rods Alive
Auto only rod stop when 1/1 turbine impulse pressure (MPC-253) < 15%
What is C-11?
Rods in Heaven
Auto Rod stop only
When Bank D demand is at 229 Steps
What is C-20?
2/2 Turbine Impulse Pressure > 40% enables AMSAC
