ML11143A148
| ML11143A148 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 04/25/2011 |
| From: | Mcneil D Operations Branch III |
| To: | Florida Power & Light Energy Point Beach |
| References | |
| Download: ML11143A148 (79) | |
Text
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 1 of 30 Appendix D Scenario Outline Form ES-D-1 Facility: ___Point Beach_____ Scenario No.: __1_____
Op-Test No.:
2011301 Examiners: D. McNeil Operators:
R. Walton D. Reeser Initial Conditions: _
100% reactor power per OP-2A, Normal Power Operation_____
Turnover:
G01 Emergency Diesel Generator is Out of Service in day 3 of a planned 5 day maintenance outage. G02 Emergency Diesel Generator is aligned to 1A05 and 2A05 in accordance with OI-35A, Standby Emergency Power Alignment. P-38A, MDAFW Pump is Out of Service in day 1 of a planned 2 day outage for seal replacement. The plant is under a severe weather watch for the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. AOP-13C, Severe Weather Conditions is in effect. IT 07G, Service Water Valves (Quarterly) is scheduled to be performed immediately after shift turnover.
Event No.
Malf.
No.
Event Type*
Event Description 1
N-BOP N-SRO Conduct IT-07G SW Valve Stroke Time Test 2
C-RO C-SRO C Charging Pump Failure 3
I-BOP I-SRO TS-SRO S/G B Level Transmitter ILT-471 Fails High 4
I-RO I-SRO TS-SRO Pressurize Pressure Channel PT-431 Fails High 5
C-BOP C-SRO TS-SRO B Steam Generator Tube Leak 6
R-RO N-SRO N-BOP Conduct Rx Plant Shutdown 7
M-ALL B Steam Generator Tube Rupture 8
C-BOP B Stuck Open Atmospheric Steam Dump Valve (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 2 of 30 SITE: POINT BEACH SEG #
PBN LOI NRC 005E SEG TITLE:
2011 ILT NRC EXAM SCENARIO #1 REV. #
0 PROGRAM:
INITIAL LICENSE TRAINING
- PBN LOI TPD COURSE:
N/A
- N/A TOTAL TIME: 2.0 HOURS
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 3 of 30 Guide Requirements Before EOP Entry:
Malfunctions:
- 1. 1P-2C Charging Pump failure
- 2. 1LT-471 B S/G Level Transmitter fails high
- 1. B Steam Generator Atmospheric fails open
- 1. Steam Generator Tube Leak Abnormal Events:
- 1. B Steam Generator Tube Rupture Major Transients:
- 1. E-2 A: Isolate the faulted steam generator before transition out of EOP-2.
Critical Tasks:
- 2. E-3 A: Isolate feedwater flow into and steam flow from the ruptured SG before a transition to ECA-3.1 occurs.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 4 of 30 SCENARIO OVERVIEW:
INITIAL CONDITIONS:
- 1. This scenario can be run from the following Standard (Specific) IC sets:
- IC-95, created from IC-02
- 2. The following equipment is OOS:
- Red dot on G01 alarm windows C02 D 2-5 and 2-6.
- Red dot on P-38A OOS alarm windows C01A 2-8 and 2-10.
SEQUENCE OF EVENTS:
Event 1:
Conduct IT-07G Service Water Valves (Quarterly)
- Crew conducts testing on SW-2890 per IST request for increased frequency testing per IT-07G.
Event 2:
- RO starts B Charging Pump and restores PZR Level C Charging Pump fails
- SRO addresses Technical Requirements Manual for failure.
Event 3:
- SRO Addresses Technical Specifications Event 4:
- RO identifies malfunction, takes manual control and restores pressure Pressurizer Pressure channel PT-431 fails high
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 5 of 30
- SRO addresses Technical Specifications Event 5:
- Crew recognizes tube leak B Steam Generator Tube Leak
- SRO enters AOP-3 Steam Generator Tube Leak
- SRO addresses Technical Specifications Event 6:
- Crew recognizes SGTR and trips the unit Steam Generator Tube Rupture
- Crew recognizes failed valve and isolates locally B Steam Generator Atmospheric fails open
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 6 of 30 NOTE: Table may be modified as needed to include all scenario time-line items SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES INITIAL CONDITIONS:
Standard IC-95 from IC-02 Unit 1
- Mode: 1
- Burnup: 10,000 MWD/MTU
- Power: 100%
- Boron: 774 ppm (MOL)
- Temperature: NOT
- Pressure: NOP
- Xenon: Equilibrium
- Rods: Bank D @ 220 steps
- Generator: 530 Mwe Unit 2
- Mode: 1
- Burnup: 500 MWD/MTU
- Power: 100%
- Boron: 1280 ppm (BOL)
- Temperature: NOT
- Pressure: NOP
- Xenon: Equilibrium
- Rods: Bank D @ 220 steps Generator: 530 Mwe
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 7 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES SIMULATOR SET UP (perform set up per the Simulator Setup Checklist, including entering action items per the Simulator Input Summary.)
- Red dot on alarm windows C02 D 2-5, 2-6 and C01A 2-8 and 2-10.
Simulator Pre-brief:
COMPLETE TURNOVER:
Review applicable current Unit Status Review relevant At-Power Risk status Review current LCOs not met and Action Requirements Verify crew performs walk down of control boards and reviews turnover checklists.
Provide students with a copy of IT-07G, Service Water Valves (Quarterly) that has been prepared for SW-2890 stroke test. Also provide a TS and TS Bases for reference.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 8 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 1
- Conduct IT-07G SW Valve Stroke Test Communications:
TH AO will be contacted to locally verify valve position. Report OPEN or CLOSED to match what the board operator sees.
Communications:
If asked, cue that the 4th licensed operator will make the required log entry End of evolution: Proceed to next event at Lead Examiner discretion.
Crew BOP SRO/BOP BOP SRO Crew briefs evolution prior to coming into simulator.
Verifies at least one SW pump operating in South and North headers Enters TSAC 3.7.8.C and logs completion of RA Strokes SW-2890 and records data.
Review data recorded by BOP and exit TSAC as required per IT-07G.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 9 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 2
- C Charging Pump Fails Communication:
When sent out to investigate Charging pump and associated breaker, inform control room breaker is tripped on overcurrent and motor is hot to the touch.
Communication:
If sent to check charging pump relief, wait 2 minutes and report charging reliefs on Unit 1 are NOT lifting Communication:
If sent to check a charging pump prior to start and after start report conditions ready for start and conditions normal after start.
Communication:
If requested, OS2 will follow up with OI-35C, 480v Electrical Load Conservation due to 1P-2A and 1P-2B Charging Pumps running.
End of evolution: Proceed to next event at Lead Examiner discretion.
SRO RO SRO When C charging pump trips, enter AOP-1D, CVCS Malfunction.
Checks RCS Leak not in progress Continuous action (CA)
Addresses Foldout page and notes.
Determines Chg Pump trip and goes to Step 3.
Check any charging pump running - A should be running.
Check Charging Flow Stable - Should answer yes.
Check Charging Pump relief not lifted - no indication of lifting relief. May dispatch AO.
Check VCT Level - Should be > 17%
Check Charging System response: Should start B Charging Pump and adjust lab seals using CV-142.
May place C charging pump in pullout.
Requests DCS Notification.
Refers to TRM for Charging Pump requirements (TRM requirements are met with two pumps operable).
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 10 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 3
- B S/G Level Transmitter LT-471 fails high If the crew is slow to take manual control of the feedwater regulating valve and thus initiates a manual or auto reactor trip, immediately insert the SGTR.
NOTE:
IF asked for guidance, the Shift Manager will state OS2 will prepare the required paperwork per 0-SOP-IC-001 YELLOW to remove LT-471 from service. Prompt OS1 to complete additional actions while OS2 prepares the paperwork.
NOTE:
IF asked for guidance, the Shift Technical Advisor will provide the following logic diagrams as referenced in 0-SOP-IC-001-YELLOW page
- 18. Sheets #172, #176, and #182.
BOP SRO RO BOP SRO Identifies the failed instrument by channel indicating high, S/G level alarms, actual level lowering on the unaffected channels or the feedwater regulating valve going shut.
Implements AOP-2B, Feedwater System Malfunction Maintain Reactor Power<100%
Check Feedwater Regulating Valve response normal.
- No, so take RNO actions and then enter AOP-24 Identify failed instrument.
Check if failed instrument is controlling, the BOP should determine LT-471 is controlling channel.
Establish manual control as desired. BOP takes manual control of B Feedwater Regulating Valve.
Return affected parameters to normal.
Determine if failed instrument affects RTO (LT-471 doesnt)
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 11 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 3 (cont)
- B S/G Level Transmitter LT-471 fails high NOTE:
IF asked for guidance, the Shift Technical Advisor will provide 0-SOP-IC-002 in its entirety.
End of evolution: Proceed to next event at Lead Examiner discretion. The intent is to not have the crew perform the actions to remove the channel from service.
SRO 0-SOP-IC-002, Technical Specifications LCO -
Instrument Cross Reference, used to determine applicable Technical Specification requirements.
Which are:
Table 3.3.1-1 item 13 S/G level low-low (TSAC 3.3.1.A&D)
Table 3.3.2-1 item 5b S/G level high (TSAC 3.3.2.A&D)
Table 3.3.2-1 item 6b S/G level low-low (TSAC 3.3.2.A&D)
All 3.3.1 & 3.3.2 table items are one hour actions Table 3.3.3-1 item 16 is met, requires only 2 channels to be Operable
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 12 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 4
- Pressurizer Pressure PT-431 Fails High If the crew is slow to take manual control of the spray valves and thus initiates a manual or auto reactor trip, immediately insert the SGTR.
NOTE:
IF asked for guidance, the Shift Manager will state OS2 will prepare the required paperwork per 0-SOP-IC-001 BLUE to remove PT-431 from service. Prompt OS1 to complete additional actions while OS2 prepares the paperwork.
NOTE:
IF asked for guidance, the Shift Technical Advisor will provide the following logic diagrams as referenced in 0-SOP-IC-001-BLUE page 24.
Sheets #169, #175, #177, #178, #180 and #181.
Communication:
IF OS1 determines the need to enter AOP-21 PPCS Malfunction, The Shift Manager should inform OS1 that OS2 will review AOP-21 and take any necessary actions.
RO SRO RO SRO/BOP Recognizes PT-431 failing high causing spray valves to open lowering RCS pressure.
Enters AOP 24 for instrument malfunction.
Identify failed instrument.
Check if failed instrument is controlling, the RO should determine PT-431 is controlling.
Establish manual control as desired. RO takes manual control of HC-431 and controls Pressurizer pressure manually.
Return affected parameters to normal.
Determine if failed instrument affects RTO, which PT-431 does not (alternate channels).
If RCS pressure gets <2205 PSIG, then LCO 3.4.1 is not met.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 13 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 4 (cont)
- Pressurizer Pressure PT-431 Fails High NOTE:
IF asked for guidance, the Shift Technical Advisor will provide 0-SOP-IC-002 in its entirety.
End of evolution: Proceed to next event at Lead Examiner discretion. The intent is to not have the crew perform the actions to remove the channel from service.
RO/BOP SRO Address the low pressure condition with the ARBs.
Controlling channel can be changed over per ARB 1C04 1C 1-2 step 6.6.
PORVs and spray controller to manual prior to defeating PT-431 Blue Return affected parameters to Automatic Address Technical Specifications for PT-431 using 0-SOP-IC-002.
Table 3.3.1-1 item 5 OverTemp Delta T Table 3.3.1-1 item 7a PZR Pressure-Low Table 3.3.1-1 item 7b PZR Pressure-High Table 3.3.2-1 item 1d SI-PZR Pressure-Low Table 3.3.2-1 item 3c CI-Safety Injection (No Action)
Table 3.3.2-1 item 4d-2 SLI-Coincident with SI (No Action)
Table 3.3.2-1 item 4e-2 SLI-Coincident with SI (No Action)
Table 3.3.2-1 item 5c FI-Safety Injection (No Action)
Table 3.3.2-1 item 6c AFW-Safety Injection (No Action)
Table 3.3.2-1 item 8 SI Block-PZR Pressure Table 3.3.3-1 item 5 RCS Pressure (NR) (No Action)
Table 3.3.5-1 item 2 CREFS Cont. Isolation (No Action)
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 14 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 5
- B Steam Generator Tube Leak Communication:
If surveys are requested for the steam lines, RP can report after 5 minutes that B steam line is slightly above background and A steam line is background RO BOP SRO RO Announces Unit 1 B Steam Line Radiation High Alarm.
Refers to ARB 1C20 C 2-2 for above alarm and RMSARB for 1RE-232 and addresses RMS server.
Enters AOP-3, Steam Generator Tube Leak.
Addresses Fold Out Page.
(CA STEP) Check SI Not Required.
PZR level w/in 10% of Program.
Subcooling > 30°F.
(CA STEP) Check Rx Trip Not Required.
Rx Critical.
Chg aligned to VCT.
(CA STEP) Check PZR Level - Stable or trending to program.
Controls charging to maintain level.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 15 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 5 (cont)
- B Steam Generator Tube Leak Communications:
SM will be asked to notify DCS and implement E-Plan Communications:
If asked, the SM can let OS1 know he will take care of limited plant evacuation using EPIP 6.1.
RO SRO RO/BOP RO SRO Check PZR Pressure - Stable or trending to program Check Rx Makeup control - proper concentration, armed and in auto.
Notify DCS, Chem and communicate E-plan need to SM.
Identify Leaking SG - uses High Main Steam Line alarm to identify B SG as leaking.
Determine Leak Rate - RO should be able to determine leak rate using charging/letdown balance.
Otherwise, SRO requests performance of CAMP 014 from chemistry or OI-55 to determine rate.
Addresses note regarding TS leakage requirement and recognizes violation of TS 3.4.13.
Checks RX shutdown required - leakage clearly exceeds 75 GPD and requires a shutdown.
Addresses caution regarding time clock and RMS alarm.
(CA STEP) Determines action based on step 10 of AOP-3.
Leak is > 75GPD and has risen more than 30 GPD over the last hour. Power to be reduced to <50%
in one hour and in MODE 3 in following 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
Enters AOP-17A, Rapid Power Reduction.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 16 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 6
- Rapid Power Reduction Unit 1 NOTE:
If excessive ramp rate is selected, crew will have difficulty maintaining VCT level and may manually trip due to Charging Pump swap over to RWST.
SRO RO BOP RO Determines desired power level and ramp rate and announces to CR - SRO determines that unit must be
<50% within one hour of receipt of High Radiation Alarm and that the unit is at 100% power.
SRO also determines that the unit needs to be taken off line and could direct BOP to set the endpoint at 0%
on the turbine.
Requests SM to notify PSS.
Checks Rod control in Auto.
Selects Rate Reduction method, likely Operator Auto
- Impulse IN per the note prior to step 4.
(CA STEP) Commences boration, should refer to ROD 1.3 for power reduction boration and rod bank requirements (CA STEP) Check PZR Pressure - Stable or trending to program (CA STEP) Check PZR Level - Stable at or trending to program
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 17 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 6 (cont)
- Rapid Power Reduction Unit 1 Communication:
When requested, TH AO start 1P-99A and B SGFP Seal Water Pumps Per Lead Evaluator, the SGTL malfunction will increase from 0.4 to 7 ramped in over 120 seconds.
The B Steam Generator Atmospheric Dump valve will fail open on reactor trip.
End of evolution: Proceed to next event at Lead Examiner discretion.
BOP RO BOP SRO BOP (CA STEP) Check SG levels - controlling in Auto (CA STEP) Maintain Tavg - Checks Tavg within limits Check MFW Seal Water Pumps Running - Contacts U1 Turbine Operator to Start 1P-99A and B.
Determines endpoint is MODE 3.
May transfer auxiliary loads.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 18 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open Crew RO Recognizes increased leak rate and uses fold out page/continuous action guidance from AOP-3 to trip the reactor.
Inserts Manual Trip to trip the reactor.
RO inserts manual SI and CI also and carries out Immediate Actions of EOP-0.
Verify Reactor Trip - RTBs open, bottom lights all lit, IRPIs on bottom, Flux lowering.
Verify Turbine Trip - Turbine Stop Valves both shut:
Turbine Stop Valves Two Closed Alarm OR Turbine Valves Bistable both lit.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 19 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open (contd)
NOTE:
When the crew directs local actions to isolate the B S/G Atmospheric Dump Valve, allow three minutes for AO transit and 2 minutes to close the valve. Do not close the isolation valve until after the crew has transitioned to EOP-2. If crew starts to push the AO to hurry up inform them the valve is very difficult to operate and you are working on closing it.
RO RO/SRO Crew BOP/SRO Verify Safeguards Buses - At least one 4160 and one 480 V Bus energized.
Checks voltage on buses and breaker configuration Check if SI is Actuated SI and RHR pumps both running.
Verifies Immediate Action steps.
Addresses Fold Out Page.
BOP notes the stuck open Atmospheric Dump Valve on the B S/G and isolates feed flow to B S/G per Foldout Page for faulted S/G (while maintaining at least 200 gpm total AFW flow).
o P-38B PCV is taken to manual and shut and/or discharge valve to B SG is taken to Manual and Shut. If 1P-29, TDAFW Pump is running, it may be stopped or isolation valve to B SG shut.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 20 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open (contd)
If the B S/G Atmospheric Dump Valve has not been noted, then the crew might maintain AFW flow to the ruptured B S/G per the Fold Out Page for ruptured S/G as needed in order to get level above 29%.
Performs Attachment A. All conditions normal except for P-38A MDAFW Pump is OOS.
Verifies Secondary Heat Sink - >29% in at least one SG. Adjusts AFW flow to A SG as desired to maintain level.
Verify RCP Seal Cooling - Lab seals on both RCPs should be >20.
(CA STEP) Verify RCS Temp Control - RNO actions taken for the uncontrolled cooldown. Ensure not dumping steam.
Lower AFW to A S/G (but ensure at least 200 gpm).
Ensure MSIVs are shut.
Check PZR PORVs both shut.
Check Normal spray valves both shut.
Check Aux spray valve shut.
Check if RCPs should remain running (they should)
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 21 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open (contd)
If not previously accomplished, the crew may have the B S/G Atmospheric Dump Valve isolated locally here. If not, then step 7 explicitly checks the valve shut.
Once isolated, the crew should complete the actions of EOP-2 and transition to EOP-3, although an acceptable alternative is to use EOP-0.0 Rediagnosis to transition to EOP-3.
SRO BOP BOP SRO SRO/RO BOP Crew Direct STA to monitor CSFSTs.
(CA STEP) Verify Containment Sump Recirc not required - RWST level should still be over 90%.
Check if Secondary System is intact - B SG pressures should be noted as lowering uncontrollably.
Transition to EOP-2 Review notes and foldout page information. Crew should determine that the A S/G is available for cooldown.
Check RCS temperature. The RNO directs stop dumping steam and control AFW flow.
Isolate MSIVs. (will have isolated previously)
Determines that 1MS-236, MSIV bypass valve is shut under admin control.
Check if any S/G NOT faulted. (A is intact).
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 22 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open (contd)
CRITICAL TASK:
E A: Isolate the faulted SG before transition out of EOP-2.
The intent is that the crew has taken actions to isolate feed to the B S/G prior to shutting the Atmospheric Dump Valve isolation valve. They will then have to decide whether to re-establish feeding in EOP-3 if level is not >29% by then.
Crew BOP BOP SRO BOP Identify faulted S/G. Crew determines B S/G is faulted Reset LOFWTT - depresses LOFWTT reset pushbutton and alarm reset buttons to clear LOFWTT alarm.
Isolate Feedwater to faulted S/G.
Ensure B FWRV and Bypass Valves are shut P-38B AFW Pump is stopped and taken to pullout 1AF-4000 TAFP discharge to B S/G and AF-4021 B MDAFP discharge to B S/G taken to manual and shut.
(Unit 2 will be in TSAC 3.7.5.d when placing P-38B in pullout [2 MDAFW Pumps OOS].)
Isolate flow from S/G.
Ensure 1MS-2015, B ADV shut - is failed open.
Shuts 1MS-2019, TDAFW supply if still open.
Shuts 1MS-5959 and 2045 SGBD isolations if open.
Dispatches AO to shut 1MS-237 and 238 locally, should remind AO that the SG is ruptured and rad levels may be elevated.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 23 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open (contd)
SRO SRO Crew RO BOP/RO Check CST level.
Check RMS normal B SG has indications of a rupture (high radiation, rising level after the atmospheric dump valve is isolated).
Transition to EOP-3.
Addresses Cautions and notes regarding identification and isolation of ruptured SG, Chem Sampling and Fold Out Page.
Reviews Fold Out Page - None of the items on the Fold Out Page should require action at this time.
(CA STEP) Check if RCPs should remain running -
RCPs should remain running.
Identify Ruptured SG - identifies B as ruptured.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 24 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open (contd)
Communication:
When the PAB AO is contacted, insert Trigger 14 to shut 1MS-237 and report both valves shut, 1MS-238 is not modeled on Simulator.
CRITICAL TASK E3-A:
Isolate feedwater flow into, and steam flow from the ruptured SG before a transition to ECA-3.1 occurs.
RO/BOP BOP BOP BOP SRO Shut MSIV on ruptured SG - 1MS-2017 is already shut.
Reset Loss of FW Turbine Trip - previously done Minimize Steam Dump from Ruptured SG:
1HC-478 in auto at 1050 1MS-2015, B ADV shut - is failed open Shuts 1MS-2019, TDAFW supply - previously shut 1MS-236, MSIV bypass valve - previously addressed Isolate flow from ruptured SG:
1MS-5959 and 2045 SGBD previously addressed.
1MS-237 and 238 isolation valves previously addressed (CA STEP) Check if Feed Flow to Ruptured SG should be stopped - level in B SG may be >29%,
thus BOP will secure P-38B MDAFW pump (in pullout) and shut AF-4021 and 1AF-4000 to secure feed from MDAFWP and TDAFWP. Should recognize impact on Unit 2 and inform U2 operator of action. (TSAC 3.7.5.D).
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 25 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open (contd)
Crew BOP RO/SRO Crew BOP BOP RO Verify Ruptured SG not needed for cooldown - checks A SG available for cooldown and B MSIV shut.
Check ruptured SG pressure >430 psig - should be above 430 psig in B SG.
Determine Target Core Exit Temp:
RO reports pressure in ruptured SG, which will vary depending on timing of isolating the Atmospheric Dump Valve. SRO determines target temperature.
Addresses notes prior to step 11 concerning cooldown rate and RCP trip criteria.
Cooldown RCS to Target Temperature Lock in SI Signal - manually actuates SI and CI and trips SI bistables in racks behind control boards. Then SI is reset.
A MSIV is shut, open 1MS-2016 A ADV fully in manual.
Check PORVs and Block Valves - PORVs should be shut and block valves open with power.
Check PZR safety valves - Shut.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 26 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7 and 8
- B Steam Generator Tube Rupture with Atmospheric Dump Valve failed open (contd)
Once action has been taken to start the cooldown, the scenario can be terminated at Lead Evaluators discretion.
BOP SRO BOP RO (CA STEP) Stabilize intact SG level - direction to maintain SG level 29-65% during cooldown.
Addresses caution regarding loss of offsite power.
Reset SI, CI and 1B-03 and 1B-04 Lockouts -
performs resets on rear of C01 panel.
Check 4160 Safeguards buses both energized from offsite - verifies buses energized from 1X04.
Reestablish IA to Containment:
-Starts second IA compressor on C01 Rear.
-Checks IA pressure - should be 100 PSIG.
-Opens IA-3047, listening for click of IA relay and sets timer for reminder to do the same for IA-3048.
(CA STEP) Check if RHR pumps should be stopped -
checks RCS pressure >425 psig and stops both RHR pumps and monitors RCS pressure.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 27 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES EOP 0 Attachment A Unit 2 will enter TSAC 3.7.8.F when SW-2907 and 2908 are opened.
Communication:
When contacted the PAB AO should report that SW-LW-61 and 62 radwaste SW isolation valves are both shut.
BOP Verify feedwater isolation.
Verify containment isolation.
Verify AFW actuation. Since P-38B is OOS, will ensure that the TDAFWP is running.
Check SI pumps running.
Check RHR pumps running.
Check only 1 CCW pump running.
Verify Service Water System alignment. BOP should contact the PAB to check 2 local valves.
Verify containment accident cooling.
Check CR ventilation in accident mode.
Check if main steam lines can remain open.
Verify proper SI valve alignment.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 28 of 30 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES EOP 0 Attachment A (contd)
Communication
- When contacted, wait 2 minutes and have the AO report CWPH temperature at 65F and stable.
BOP (CA STEP) Verify containment spray not required.
Verify SI flow.
(CA STEP) Check CSR ventilation operating.
(CA STEP) Check AFW Area ventilation operating.
(CA STEP) Check Computer Room ventilation operating.
(CA STEP) Check CWPH temperature.
When the conditions are stabilized or at discretion of lead instructor/evaluator End the scenario by placing the simulator in freeze Inform Examinees they are to remain at their stations and cannot discuss the scenario. They are to wait for any follow up questions the examiners may have.
Crew:
No debrief or critique due to this being an evaluated scenario.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 29 of 30 1.0 PLANT CONDITIONS UNIT 1 UNIT 2 Time in core life (MWD/MTU):
10,000 500 Reactor power (%):
100%
100%
Boron concentration (ppm):
774 ppm 1280 ppm Rod height (CBD @):
CBD @ 220 CBD @ 220 2.0 TECHNICAL SPECIFICATION ACTION CONDITIONS IN EFFECT TSAC TSAC 3.7.5.C Description Restore motor driven AFW pump system to OPERABLE status within 7 days.
Reason P-38A, MDAFP, is Out of S of a planned 2 day outage replacement.
3.0 EQUIPMENT OUT OF SERVICE
- P-38A, MDAFP, is Out of Service in day 1 of a planned 2 day outage for seal replacement.
4.0 PLANNED EVOLUTIONS IT 07G Service Water Valves (Quarterly) will be performed at the start of the shift in order to stroke SW-2890, North SW Hdr Xconn Valve to provide data for increased frequency testing per the IST Engineer. Stroke testing of the other valves (SW-2870 / SW-2869 / SW-2891) and seat flushing is not required. An AO is standing by locally at the valves.
5.0 TURNOVER INFORMATION
- Safety Monitor is Green.
- G02 EDG is aligned to 1A05 and 2A05 4160 Safeguards busses accordance with OI-35A, Standby Emergency Power Alignment.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 30 of 30
- The plant is under severe weather watch for the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. AOP-13C, Severe Weather Conditions, is in effect.
- Clock time is real time and you have the normal shift complement.
- IT 07G Service Water Valves (Quarterly) has been prepared for partial use with an AO standing by already briefed.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 1 of 23 Appendix D Scenario Outline Form ES-D-1 Facility: ___Point Beach_____ Scenario No.: __2_____
Op-Test No.:
2011301 Examiners: D. McNeil Operators:
R. Walton D. Reeser Initial Conditions: _
Unit 1 is at 28% reactor power, Chemistry hold per OP-1C, Startup to Power Operation Unit 1, Step 5.120.3 has just been cleared.
Turnover:
G01 Emergency Diesel Generator is Out of Service in day 3 of a planned 5 day maintenance outage. G02 Emergency Diesel Generator is aligned to 1A05 and 2A05 in accordance with OI-35A, Standby Emergency Power Alignment. 1P-15B, SI Pump is Out of Service in day 1 of a planned 2 day outage for seal replacement. The plant is under a severe weather watch for the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. AOP-13C, Severe Weather Conditions is in effect.
Shifting of 1P-28A and B SGFPs, for post-maintenance testing, is scheduled to be performed immediately after shift turnover, followed by a load escalation from 28% power to ~47%
power (at 15% per hour) per OP-1C, Startup to Power Operation Unit 1.
Event No.
Malf.
No.
Event Type*
Event Description 1
N-BOP N-SRO Shift Steam Generator Feed Pumps 2
R-RO N-SRO Increase Reactor Power from 28% at the Normal Rate.
3 I-BOP I-SRO TS-SRO Turbine First Stage Pressure Instrument PT-485 Fails Low.
4 I-RO I-SRO TS-SRO Pressurizer Level Instrument LT-428 Fails Low.
5 C-RO C-SRO TS-SRO Power Operated Relief Valve 1RC-430 Seat Leakage.
6 M-ALL Steam Line Break Upstream of the Unit 1 A MSIV.
7 M-ALL Reactor Trip Breakers Fail to Open (ATWS) 8 C-BOP Train A ESF Sequencer Fails to Actuate.
(N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 2 of 23 SITE: POINT BEACH SEG #
PBN LOI NRC 006E SEG TITLE:
2011 ILT NRC EXAM SCENARIO #2 REV. #
0 PROGRAM:
INITIAL LICENSE TRAINING
- PBN LOI TPD COURSE:
N/A
- N/A TOTAL TIME: 2.0 HOURS
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 3 of 23 QUANTITATIVE ATTRIBUTES Before EOP Entry:
Malfunctions:
- 1. 1PT-485 Turbine First Stage Pressure fails low
- 2. 1LT-428 Pressurizer Level transmitter fails Low
- 1. ATWS Reactor Trip Breakers fail to open
- 2. Train A ESF Sequencer fails to operate
- 1. Steam Leak upstream A MSIV Abnormal Events:
- 1. A Steam Line Break Major Transients:
- 1. E-2 A Isolate the faulted SG before completion of scenario.
Critical Tasks:
- 2. FR-S.1C: Insert negative reactivity into the core by at least one of the following methods before completing the immediate action steps of CSP-S.1:
Insert control rods
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 4 of 23 SCENARIO OVERVIEW:
INITIAL CONDITIONS:
- 1. This scenario can be run from the following Standard (Specific) IC sets:
- IC-96, created from IC-05
- 2. The following equipment is OOS:
- Red dot on G01 alarm windows C02 D 2-5 and 2-6.
- Red dot on alarm window C01 1B 3-5.
SEQUENCE OF EVENTS:
Event 1:
Shift S/G Main Feed Pumps
Event 2:
- Crew raises power per OP-1C at 15%/hr rate.
Increase power normal rate from 28%
Event 3:
- Crew recognizes failure and takes manual control of rods.
Turbine First Stage Pressure Transmitter PT-485 fails Low
- SRO Addresses Technical Specifications Event 4:
- RO identifies malfunction, takes manual control Pressurizer Level channel LT-428 fails Low
- SRO addresses Technical Specifications
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 5 of 23
- Crew recognizes leakage from safety or relief valves Power Operated Relief Valve 1RC-430 Seat Leakage
- Crew determines which valve is leaking and isolates it
- SRO addresses Technical Specifications Event 6:
- Crew recognizes steam leak Steam Line break upstream Unit 1 A MSIV
- RO recognizes failure of reactor trip breakers in EOP-0 Reactor Trip Breakers fail to open (ATWS)
- Crew addresses faulted S/G Event 8:
- BOP recognizes failure while implementing Attachment A in CSP-S.1 and starts equipment as directed Train A ESF Sequencer fails to actuate
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 6 of 23 NOTE: Table may be modified as needed to include all scenario time-line items SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES INITIAL CONDITIONS:
Standard IC-96 from IC-05 Unit 1
- Mode: 1
- Burnup: 7500 MWD/MTU
- Power: 28%
- Boron: 1099 ppm (MOL)
- Temperature: NOT
- Pressure: NOP
- Xenon: Equilibrium
- Rods: Bank D @ 167 steps
- Generator: 145 Mwe Unit 2
- Mode: 1
- Burnup: 14960 MWD/MTU
- Power: 100%
- Boron: 16 ppm (EOL)
- Temperature: NOT
- Pressure: NOP
- Xenon: Equilibrium
- Rods: Bank D @ 220 steps Generator: 530 Mwe
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 7 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES SIMULATOR SET UP (perform set up per the Simulator Setup Checklist, including entering action items per the Simulator Input Summary.)
- Red dot on alarm windows C02 D 2-5, 2-6 and C01 1B 3-5.
- Ensure PPCS Blowdown adjustments are set to 10/10 prior to starting Simulator Pre-brief:
COMPLETE TURNOVER:
Review applicable current Unit Status Review relevant At-Power Risk status Review current LCOs not met and Action Requirements Verify crew performs walk down of control boards and reviews turnover checklists.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 8 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 1
- Shift S/G Main Feed Pumps Communications:
TH AO will be contacted to locally check status of SGFPs prior to start and ensure all personnel are clear.
Communications:
TH AO may be contacted to look at the mini-recirc valve for the B SGFP. If asked the valve went full open and is currently (insert current status).
End of evolution: Proceed to next event at Lead Examiner discretion.
Crew Crew briefs evolution per OP-13A prior to evolution Shifts SGFPs per OP-13A to complete PMT run Event 2
- Increase power normal rate from 28%
NOTE: If asked S/G B/B is 15/15 Klbs/SG through the HXs.
End of evolution: Proceed to next event at Lead Examiner discretion.
Crew RO Briefing on power ascension may be performed in classroom prior to beginning of the scenario Withdraws rods and/or Dilute in addition to adjusting steam demand as needed to establish power increase
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 9 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 3
- Turbine First Stage Pressure Transmitter PT-485 fails Low NOTE:
IF asked for guidance, the Shift Technical Advisor will provide the following logic diagrams as referenced in 0-SOP-IC-001-WHITE page 38.
Sheets #172, #174, #178 and #179.
NOTE:
IF asked for guidance, the Shift Technical Advisor will provide 0-SOP-IC-002 in its entirety.
RO SRO RO RO/SRO RO SRO Identifies inward rod motion, recommends placing rod control in Manual Concurs with recommendation, directs placing rods in Manual and enters AOP-6C, Uncontrolled Rod Motion (preferred) (May also enter AOP-24)
Check Rod Motion Required (CA STEP) Maintain RCS Tavg - checks Tavg within allowed band Check RCS Tavg at or Trending to Tref - Tref will need to be calculated by the RO. RO should determine that Tavg is lower than Tref and needs to withdraw rods to restore Tavg to program Check Control Rods - Above Minimum Insertion Limit.
Determines rods are well above minimum insertion limit Verify AFD within limit - Checks DFMOOB Clear.
Alarm should be clear. This is a continuous action step which may come into play as rods are driven to stabilize Tavg Check Rod Motion due to Instrument Malfunction. Go to AOP-24
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 10 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Turbine First Stage Pressure Transmitter PT-485 fails Low (contd)
Communication:
IF OS1 determines the need to enter AOP-21 PPCS Malfunction, The Shift Manager should inform OS1 that OS2 will review AOP-21 and take any necessary actions.
End of evolution: Proceed to next event at Lead Examiner discretion.
BOP BOP/RO RO SRO AOP 24 action:
Identify failed instrument Check if failed instrument is controlling, the BOP should determine PT-485 is controlling Establish manual control as desired. RO takes manual control of rods Return affected parameters to normal Determine if failed instrument affects RTO - does not Remove instrument from service per 0-SOP-IC-001 Address Technical Specifications Table 3.3.1-1 item 17b Turbine Impulse Pressure P-7
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 11 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 4
- Pressurizer Level channel LT-428 fails Low NOTE:
AOP-1D gives guidance on stabilizing plant with loss of Letdown as well as restoring it.
AOP-24 gives generic guidance to take manual control as needed for the failure. The ARB guidance (ARB 1C04 1C 1-3) is used to DEFEAT Blue LT-428 so Letdown can be restored as well as Automatic Charging.
Communication:
IF asked for guidance, the Shift Manager will state OS2 will prepare the required paperwork per 0-SOP-IC-001 BLUE to remove LT-428 from service. Prompt OS1 to complete additional actions while OS2 prepares the paperwork.
Communication:
IF OS1 determines the need to enter AOP-21 PPCS Malfunction, The Shift Manager should inform OS1 that OS2 will review AOP-21 and take any necessary actions.
RO RO/BOP SRO RO Acknowledges PZR High/Lo Level alarm and informs Crew. RO recommends going to minimum charging due to loss of Letdown RO/BOP address the ARBs for alarms associated with the PZR Level failure Directs entry into AOP-1D CVCS Malfunction or AOP-24 Instrument Failure AOP 24 action:
Identify failed instrument Check if failed instrument is controlling, the RO should determine LT-428 is controlling Establish manual control as desired. RO takes manual control of charging Return affected parameters to normal Determine if failed instrument affects RTO, which LT-428 does not Remove instrument from service per 0-SOP-IC-001
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 12 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 4
- Pressurizer Level channel LT-428 fails Low (contd)
NOTE:
IF asked for guidance, the Shift Technical Advisor will provide the following logic diagrams as referenced in 0-SOP-IC-001-BLUE page 16.
Sheets #175, #180, and #181.
NOTE:
AOP-1D gives guidance on stabilizing plant with loss of Letdown as well as restoring it.
AOP-24 gives generic guidance to take manual control as needed for the failure. The ARB guidance (ARB 1C04 1C 1-3) is used to DEFEAT Blue LT-428 so Letdown can be restored as well as Automatic Charging NOTE:
IF asked for guidance, the Shift Technical Advisor will provide 0-SOP-IC-002 in its entirety.
Intent is to NOT take the instrument OOS per 0-SOP-IC-001-Blue, shift to auto control per ARB is desired.
RO/BOP SRO RO SRO RO Crew SRO Address the level condition with the ARBs.
- Controlling channel can be changed over per ARB to return affected parameters to Automatic AOP-1D actions:
(CA STEP) Check RCS Leak NOT in progress Determine CVCS Malfunction - Loss of Letdown go to Step 48 Reduce charging to minimum Check if Letdown can be restored - yes, see next page Address Technical Specifications for LT-428 using 0-SOP-IC-002 TSAC 3.3.1.A enter table 3.3.1-1 item 8 immediately.
Take LT-428 to trip within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> per 3.3.1.K TSAC 3.3.3 PAM may be referenced, only 2 PZR level transmitters are required. (no action needed)
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 13 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 4
- Pressurizer Level channel LT-428 fails Low (contd )
NOTE:
If asked, the Shift Manager will direct the Crew to establish Charging back to automatic. This evolution can be completed per Lead Examiner based on scenario timing.
NOTE:
If asked, the Shift Manager will NOT ask that Letdown be restored but will give direction to restore letdown if given the choice between that or removing an instrument from service.
End of evolution: Proceed to next event at Lead Examiner discretion.
Crew RO SRO Check if Letdown restoration can be performed Ensure Letdown Orifice isolation valves - SHUT Ensure Normal Charging In-Service Check PZR Level >20%
Establish Letdown
- Open Letdown CI valves
- Open 1RC-427
- Ensure CCW cooling established
- Ensure at least 20 GPM charging
- Establish Letdown Check PZR Level at program Level Inform DCS Return to Procedure Step in Effect
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 14 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 5
- Power Operated Relief Valve 1RC-430 Seat Leakage NOTE:
If asked, the Shift Manager will direct completion of ARB actions to determine which PORV is leaking.
End of evolution: Proceed to next event at Lead Examiner discretion.
RO RO Crew SRO RO acknowledges high temperature alarm for the Safety and PORV tailpipes. (1C04 1C 1-4)
RO determines the high temperature is from the PORVs using board meters Determines RCS leak rate Crew determines which PORV is leaking and isolates per ARB (1C04 1C 1-4) or AOP-1A Reactor Coolant Leak SRO addresses Technical Specifications for RCS leakage - Identified LCO 3.4.13 RCS Leakage NOT met due to >10 GPM IDENTIFIED RCS leakage going to the PRT SRO should determine entry into TSAC 3.4.13.A is required Required Action A.1 Reduce LEAKAGE to within limits (4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />)
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 15 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 6
- Steam Line break upstream Unit 1 A MSIV NOTE: Exceeding 1 psig inside containment exceeds parametric value, TS lists 2 psig as the max pressure before not meeting LCO 3.6.4 and the need to enter a TSAC.
Crew SRO BOP RO Crew Crew determines leakage into containment is Secondary vice Primary Enter AOP-2A Secondary Coolant Leak (CA STEP) Determine Secondary leakage Not Hazardous to Personnel or Equipment (CA STEP) Maintain Plant Within Limits (CA STEP) Maintain RCS Tavg Crew determines CA Step 1 applies and attempts to trip the Unit
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 16 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7:
Reactor Trip Breakers fail to open (ATWS)
CRITICAL TASK
- Insert Negative Reactivity into the core before completing Immediate Action Steps of CSP-S.1 Communication:
When the TH AO is contacted to locally open the trip breakers it will take 2 minutes to transit to the Rod Drive Room. If the ATWS is announced over the gaitronics the TH AO will report to the Rod Drive Room in 2 minutes.
RO BOP RO Crew BOP SRO BOP Attempts to trip reactor using 1C04 pushbuttons.
Attempts to trip reactor using C01 pushbuttons Directs BOP to deenergize 1B01 and 1B02 Deenergizes 1B01. 1B02 will not deenergize Announces entry into CSP-S.1 and begins driving control rods in Directs BOP to trip turbine manually Announces ATWS and contacts AO to go to Unit 1 Rod Drive Room Trips turbine manually, verifies turbine tripped Addresses Fold Out Page Verifies AFW actuation: checks both MDAFW pumps running, checks TDAFW pump running if SG levels
<25% [57%]
Aligns Charging suction to RWST: Open 1CV-112B, Closes 1CV-112C Establishes Emergency Boration: Establish Max Charging, Start BATP, Open 1CV-350, Emergency Borate Valve
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 17 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Reactor Trip Breakers fail to open (ATWS)
(contd)
Communications:
If PAB AO contacted to locally verify dilution flowpaths, wait 2 minutes and report dilution flowpaths isolated.
RO/BOP Crew RO/BOP Check SI Actuated: IF SI actuates during CSP-S.1, BOP will perform Attachment A as time permits (see event 9 for details)
Check PZR Pressure: <2335 Check RTBs open and Turbine Tripped: if AO has not yet been dispatched to Rod Drive Room, step will prompt crew to do so. Turbine should have been tripped at step 2 (CA STEP) Stabilize Intact S/G Level which is B S/G RO/BOP should check dilution flowpaths in the Control Room and may dispatch the PAB AO to check the others on the list Checks RCS Cold Leg > 543ºF. If Cold Leg Temp is <
543ºF, will stop any steam dumping in progress Crew should determine that an uncontrolled cooldown IS in progress and proceed to isolate A S/G Isolate Both Main Steam Lines Identify Faulted S/G - A was previously faulted
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 18 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Reactor Trip Breakers fail to open (ATWS)
(contd)
Critical Task:
E-2 A Isolate the faulted SG before completion of scenario.
Communications:
When the PAB AO is contacted to locally shut 1MS-235 Radwaste Steam Isolation and 1MS-228 MSIV Upstream trap insert Trigger 14. Report both valves as closed 2 minutes after being directed. (1MS-228 is not modeled on the simulator)
Scenario may be terminated at Lead Evaluators discretion any time after transition back to EOP-0.
RO/BOP SRO Crew Reset Loss of Feedwater Turbine Trip Isolate Feed to Faulted S/G - Actions should be taken for the A S/G only Isolate Flow from Faulted S/G - Actions should be taken for A S/G only Check Core Exit TCs and determines they are well under 1200°F Crew determines that the RTBs are now open and power is lowering as expected (CA STEP) Stops Boration since all rods are inserted Transitions back to Step 1 of EOP-0 Complete Immediate Actions of EOP-0
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 19 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 8:
Train A ESF Sequencer fails to actuate BOP Actions to start Train A equipment can be initiated after Immediate Actions are taken AND verified. Crew will try to manually actuate SI with no success. Each piece of equipment in Train A will be manually started per CSP-S.1 Attachment A (see next page for event response).
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 20 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES CSP-S.1 Attachment A Communication:
When contacted the PAB AO should report that SW-LW-61 and 62 radwaste SW isolation valves are both shut.
BOP Verify Safeguards Busses Energized Verify feedwater isolation Verify containment isolation Check SI pumps running-No manually start A pump Check RHR pumps running-No manually start A pump Check only 1 CCW pump running Verify Service Water System alignment. BOP should contact the PAB to check 2 local valves Verify containment accident cooling-No start fans Check CR ventilation in accident mode Check if main steam lines can remain open. -No (CA STEP) Verify containment spray not required -
Yes take actions to single up trains (CA STEP) Check 4160 Safeguards Busses BOTH energized by Offsite Power
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 21 of 23 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES When the conditions are stabilized or at discretion of lead instructor/evaluator End the scenario by placing the simulator in freeze Inform Examinees they are to remain at their stations and cannot discuss the scenario. They are to wait for any follow up questions the examiners may have.
Crew:
No debrief or critique due to this being an evaluated scenario.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 22 of 23 1.0 PLANT CONDITIONS UNIT 1 UNIT 2 Time in core life (MWD/MTU):
7500 14960 Reactor power (%):
28%
100%
Boron concentration (ppm):
1099 ppm 16 ppm Rod height (CBD @):
CBD @ 167 CBD @ 220 2.0 TECHNICAL SPECIFICATION ACTION CONDITIONS IN EFFECT TSAC TSAC 3.5.2.A One ECCS train inoperable Description A.1 Restore train to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Reason Seal replacement 3.0 EQUIPMENT OUT OF SERVICE
- G01 EDG is in day 3 of a planned 5 day maintenance outage.
1P-15B Safety Injection Pump is in day 1 of a 2 day planned maintenance outage for seal replacement.
4.0 PLANNED EVOLUTIONS Immediately following turnover you are to shift Main Feed Pumps on Unit 1 for Post Maintenance Testing (PMT) per OP-13A Secondary System Startup Step 5.17. There is an AO standing by and already briefed on the evolution.
Following the shifting of Main Feed Pumps you are to continue with the load escalation (at 15% per hour) to approximately 47% per OP-1C Startup to Power Operation Unit 1 starting with Step 5.123. TH and PAB AOs have been briefed on their responsibilities per Step 5.122.
5.0 TURNOVER INFORMATION Safety Monitor is Green.
G02 EDG is aligned to 1A05 and 2A05 4160 Safeguards busses in accordance with OI-35A, Standby Emergency Power Alignment.
G02, G03 and G04 EDGs are protected equipment.
1P-15A Safety Injection Pump is protected equipment.
There are 2 crews of Maintenance folks in working G01 EDG and 1P-15A SI Pump.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 23 of 23 There is a severe thunderstorm watch for the area for the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. AOP-13C, Severe Weather Conditions, is in effect.
Unit 1 rods are in AUTO and Xenon is stable.
Unit 1 was is in a 28% chemistry hold for sulfates per NP 3.2.3 Secondary Water Chemistry.
P-41 Common Vacuum Priming Pump is aligned to Unit 1. Waterbox levels are low in the sightglass and the AOs are monitoring them.
Clock time is real time and you have the normal shift complement.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 1 of 26 Facility: Point Beach Nuclear Station Scenario No.: 3 Op-Test No.:
2011301 Examiners:
D. McNeil Operators:
R. Walton D. Reeser Initial Conditions:
Unit 1 is at 49% reactor power, both trains of Feed and Condensate are running per OP-1C, Startup to Power Operation Unit 1.
Turnover:
G01 Emergency Diesel Generator is Out of Service in day 3 of a planned 5 day maintenance outage. G02 Emergency Diesel Generator is aligned to 1A05 and 2A05 in accordance with OI-35A, Standby Emergency Power Alignment. P-38B, MDAFW Pump is Out of Service in day 1 of a planned 2 day outage for seal replacement. The plant is under a severe weather watch for the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. AOP-13C, Severe Weather Conditions is in effect. Load escalation from 49% power to ~74% power (at 15% per hour) per OP-1C, Startup to Power Operation Unit 1, is scheduled to be performed immediately after shift turnover.
Event No.
Malf.
No.
Event Type*
Event Description 1
R-RO N-SRO N-BOP Normal Up-Power 2
I-RO I-SRO TS-SRO Thot Instrument TE-401A Fails High 3
C-BOP C-SRO TS-SRO A CCW Pump Shaft Seizes w/Failure of B CCW Pump to Auto Start 4
I-BOP I-SRO TS-SRO Controlling SG Pressure Channel PT-478 Fails High 5
C-BOP C-SRO 1A05 4160 Safeguards Bus Feeder Breaker trip 6
C-RO C-SRO Small RCS Leak in A RCS Loop Degrading to Large Break 7
M-ALL Large Break LOCA 8
I-BOP Failure of SI to Auto-Actuate 9
C-BOP Failure of Containment Accident Fan W-1A1 to Auto-Start 10 C-BOP Failure of SI-852A to Auto-Open
- (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 2 of 26 SITE: POINT BEACH SEG #
PBN LOI NRC 007E SEG TITLE:
2011 ILT NRC EXAM SCENARIO #3 REV. #
0 PROGRAM:
INITIAL LICENSE TRAINING
- PBN LOI TPD COURSE:
N/A
- N/A TOTAL TIME: 2.0 HOURS
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 3 of 26 QUANTITATIVE ATTRIBUTES (Use this form for Evaluations only.)
Before EOP Entry:
Malfunctions:
- 1. 1TE-401A Thot instrument fails High
- 4. Loss of 1A05 4160 Safeguards Bus Feeder Breaker After EOP Entry:
- 1. Failure of Safety Injection to Auto initiate
- 2. Failure of 1W1A1 Accident Fan to Auto start
- 3. Failure of 1SI-852A to Auto open
- 1. Small RCS leak Abnormal Events:
- 1. Large Break LOCA Major Transients:
- 1. E0-D Manually actuate at least one train of SIS-actuated safeguards before transition out of EOP-0 Critical Tasks:
- 2. ES-1.3-A Transfer to cold leg recirculation by establishing an ECCS flowpath prior to depleting the RWST (9%)
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 4 of 26 SCENARIO OVERVIEW:
INITIAL CONDITIONS:
- 1. This scenario can be run from the following Standard (Specific) IC sets:
- IC-97, created from IC-04
- 2. The following equipment is OOS:
- Red dot on G01 alarm windows C02 D 2-5 and 2-6.
- Red dot on P-38A OOS alarm windows C01A 2-8 and 2-10.
SEQUENCE OF EVENTS:
Event 1:
Normal Up-Power
- Crew raises power 15%/hr per OP-1C Startup to Power Operation Event 2:
- Crew responds to malfunction and places Rods/Charging/Condenser Steam Dumps in manual TE-401A Thot fails High
- SRO addresses Technical Specifications Event 3:
- Crew recognizes failure and manually starts Standby CCW Pump Running CCW Pump Shaft Seizure with failure of Standby CCW Pump to Auto start.
- SRO Addresses Technical Specifications Event 4:
- BOP recognizes failure and takes manual control of MFRV and SG Atmospheric SG Pressure channel PT-478 fails High
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 5 of 26
- SRO addresses Technical Specifications Event 5:
- Crew identifies loss of safeguards bus 1A05 4160 Safeguards Bus Feeder Breaker trips
- SRO enters AOP-1A Reactor Coolant Leak
- SRO addresses Technical Specifications Event 7:
- Crew recognizes leakage is much worse and plant trips Large Break LOCA
- SRO enters EOP-0 Reactor Trip or Safety Injection Event 8:
- Crew recognizes failure and manually initiates SI and CI Failure of Safety Injection to Auto Initiate Event 9:
- BOP recognizes failure and manually starts fan Failure of 1W-1A1 Accident Fan to Auto start Event 10:
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 6 of 26 NOTE: Table may be modified as needed to include all scenario time-line items SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES INITIAL CONDITIONS:
Standard IC-97 from IC-04 Unit 1
- Mode: 1
- Burnup: 800 MWD/MTU
- Power: 49%
- Boron: 1594 ppm (BOL)
- Temperature: NOT
- Pressure: NOP
- Xenon: Equilibrium
- Rods: Bank D @ 187 steps
- Generator: 260 Mwe Unit 2
- Mode: 1
- Burnup: 8800 MWD/MTU
- Power: 100%
- Boron: 696 ppm (EOL)
- Temperature: NOT
- Pressure: NOP
- Xenon: Equilibrium
- Rods: Bank D @ 220 steps Generator: 530 Mwe
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 7 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES SIMULATOR SET UP (perform set up per the Simulator Setup Checklist, including entering action items per the Simulator Input Summary.)
- Red dot on alarm windows C02 D 2-5, 2-6 and C01A 2-8 and 2-10.
- Ensure PPCS Blowdown adjustments are set at 10/10 Simulator Pre-brief:
COMPLETE TURNOVER:
Review applicable current Unit Status Review relevant At-Power Risk status Review current LCOs not met and Action Requirements Verify crew performs walk down of control boards and reviews turnover checklists.
Event 1
- Normal Up-Power from 49%
End of evolution: Proceed to next event at Lead Examiner discretion.
Crew RO/BOP Briefing on power ascension may be performed in classroom prior to beginning of the scenario.
Withdraws rods and/or Dilute in addition to adjusting steam demand as needed to establish power increase of 15%/hr.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 8 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 2
- TE-401A Thot fails High Communications:
SM may be requested to contact I&C to troubleshoot and repair TE-401A.
Communications:
If requested by OS1 inform them OS2 will be preparing the 0-SOP-IC-001 RED to remove 1TE-401A from service.
NOTE:
IF asked for guidance, the Shift Technical Advisor will provide the following logic diagrams as referenced in 0-SOP-IC-001-RED page 12.
Sheets #177, #179 and #180.
NOTE:
RO IF asked for guidance, the Shift Technical Advisor will provide 0-SOP-IC-002 in its entirety.
SRO RO RO BOP RO Recognizes instrument failure for the Red channel Thot. Recommends placing rods to MANUAL.
SRO acknowledged recommendation and alarms.
Enter AOP 6C for uncontrolled rod motion.
Check rod motion required - take rods to manual (CA STEP) Maintain RCS Tave Check RCS Tave at or trending to program - Crew should discuss current temperature and a plan on how to restore it.
Charging may be taken to manual. With the unit at a reduced power program level will be raised to the full power setting based on the circuit selecting auctioneered high Tave.
Condenser Steam Dumps may be shifted to steam pressure control mode per Alarm Response Procedure actions. (1C03 1E2 4-2)
Check control rods above insertion limits (CA STEP) Verify AFD within limits
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 9 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES T-401A, Red Thot Fails High (contd)
NOTE:
IF SRO determines the need to enter AOP-21 PPCS Malfunction, The Shift Manager should inform OS1 that OS2 will review AOP-21 and take any necessary actions.
NOTE:
Intent is to NOT take the instrument out of service per 0-SOP-IC 001 RED.
End of evolution: Proceed to next event at Lead Examiner discretion.
RO SRO SRO SRO Check rod motion due to instrument failure Enter AOP-24 Response to Instrument Malfunction.
Identify failed instrument Check if failed instrument is controlling channel Establish manual control as required Return affected parameters to desired values Using Attachment A verify failed instrument does not affect PPCS RTO Remove failed instrument from service per 0-SOP-IC-001-RED Review Technical Specifications. LCO 3.3.1 Instrumentation Table 3.3.1-1 items 5 and 6.
LCO 3.3.2 ESFAS Instrumentation Table 3.3.2-1 item 4d-3.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 10 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 3:
Running CCW Pump Shaft Seizure with failure of Standby CCW Pump to Auto start.
Communications:
If asked, the PAB AO reports the A CCW Pump inboard motor bearing is hot to the touch.
Communications:
If asked, the PAB AO will report nothing unusual with the B CCW Pump discharge pressure indicator, it reads 125 psig locally.
Communications:
If asked, the TH AO will report the A CCW Pump breaker has tripped on overcurrent.
NOTE:
Crew may elect to place 1P-11A in pullout to clear Motor Breaker Trip alarm.
End of evolution: Proceed to next event at Lead Examiner discretion.
BOP SRO SRO BOP/RO SRO BOP identifies the A CCW Pump failure with the B CCW Pump not auto starting. BOP requests from the SRO to start B CCW Pump manually. (1C03 1D 2-6)
BOP or RO address ARBs as applicable.
Enter AOP 9B CCW malfunction to address the lost CCW Pump. BOP will verify adequate tank level and start 1P-11B CCW Pump.
Crew will address surge tank level which will require no action.
Crew will address system leakage requiring no action.
Chemistry will be requested to analyze CCW.
OS1 will ask the SM to call DCS and Emergency Plan.
Send AOs out locally to the pump/breaker and discharge pressure indicator to find any problems.
Address LCO 3.7.7 CCW and enter 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> TSAC 3.7.7.A
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 11 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 4
- SG Pressure channel PT-478 fails High Communications:
SM may be requested to contact I&C to troubleshoot and repair PT-478.
Communications:
If requested by OS1, SM agrees to let Crew take B FRV to auto per ARB guidance by shifting controlling feed flow channels (1C03 1E2 3-5).
Communications:
If requested by OS1 inform them OS2 will be preparing the 0-SOP-IC-001 BLUE to remove 1PT-478 from service.
NOTE:
Crew may enter AOP-2B Feedwater System Malfunction to address feed systems issues. (see next page for actions)
NOTE:
BOP IF SRO determines the need to enter AOP-21 PPCS Malfunction, The Shift Manager should inform OS1 that OS2 will review AOP-21 and take any necessary actions.
SRO BOP SRO Determine PT-478 has failed high and respond to alarms.
BOP takes manual control of B MFRV and manually closes B S/G Atmospheric Dump valve.
Enter AOP-24 for instrument malfunction.
Identify failed instrument Check if failed instrument is controlling Establish manual control as required. - B MFRV to manual and B S/G Atm Stm Dump to manual/closed Return affected parameters to desired values. - B MFRV may be placed back in auto if ARB guidance is used to swap controlling feed flow channels. Alarm will not be in due to the low power but guidance could still be used. (1C03 1E2 3-5)
Using Attachment A determine if PPCS RTO is affected. - RTO not affected.
Remove instrument per 0-SOP-IC-001 - BLUE.
Intent is to NOT take the instrument out of service per 0-SOP-IC 001 BLUE.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 12 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 4
- SG Pressure channel PT-478 fails High (contd)
NOTE:
IF asked for guidance, the Shift Technical Advisor will provide the following logic diagrams as referenced in 0-SOP-IC-001-BLUE page 20 and
- 28. Sheets #169, #172, #176, and #179.
NOTE:
IF asked for guidance, the Shift Technical Advisor will provide 0-SOP-IC-002 in its entirety.
End of evolution: Proceed to next event at Lead Examiner discretion.
SRO RO BOP Review 0-SOP-IC-002 Technical Specification LCO-Instruments Cross Reference.
Table 3.3.1-1 item 14-2 SF/FF Mismatch Table 3.3.2-1 item 1e SI-Steam Line Pressure-Low Table 3.3.2-1 item 3c CI-Safety Injection (no action)
Table 3.3.2-1 item 4d-2 SLI-Coincident with SI Table 3.3.2-1 item 4e-2 SLI-Coincident with SI Table 3.3.2-1 item 5c FI-Safety Injection (no action)
Table 3.3.2-1 item 6c AFW-Safety Injection (no action)
Table 3.3.3-1 item 17 SG Pressure (no action)
Table 3.3.5-1 item 2 CREFS Cont. Isolation (no action)
AOP-2B Feedwater System Malfunction steps:
Maintain Reactor Power<100%
Check Feedwater Regulating Valve response normal. - No, so take RNO actions and then enter AOP-24
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 13 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 5
- 1A05 Safeguards Bus Feeder Breaker Trip (1A52-57)
Communications:
If TH AO requested, inform the crew that EDG G02 is operating normally and 1A05 feeder breaker is open with no abnormal indications.
Communications:
Unit 2 CO (Instructor) will be asked to verify blender operations for the BA Transfer Pump. 2P-4A BA Transfer pump has no power and 2P-4B will have to be placed in Auto.
BOP SRO BOP BOP/RO SRO BOP Responds to alarms on panel C02 and informs crew there was a loss of 1A05 with EDG G02 loading on the bus.
Enters AOP-18A to restore equipment Check 1A05 energized (CA STEP) Monitor EDG voltage and frequency Check Bus 1B03 energized Check MCC 1B-32 energized Check blender operation on both units Check RHR required - No go to step 8 Check CCW pumps at least one operating Check CCW flow less than 3650 gpm Check only 1 CCW pump operating Check SW Header pressure > 40 psig Check one IA compressor running
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 14 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES 1A05 Safeguards Bus Feeder Breaker Trip (contd)
Communications:
PAB AO will get asked to reset W14A breaker 1B52-329B. Insert LOA and report back fan has been reset.
Communications:
Unit 2 OS and the 4th License will align Control Room ventilation to Mode 1 per 0-SOP-VNCR-002.
End of evolution: Proceed to next event at Lead Examiner discretion after Battery Charger restoration.
RO BOP RO SRO BOP Verify Charging Flow Check if Letdown should be established Check control room fans armed - W14A will have to be reset Check control room ventilation in mode 1 - No Unit 2 OS and 4th License will take care of this Check rod control in auto SM make notifications and TSAC entries Restart containment accident fans as necessary Restore battery chargers Reenergize MCC 1B-31 Restore PAB ventilation
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 15 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 6
- Small RCS leak in A loop RTD Manifold The Crew must differentiate between a primary and secondary leak.
CREW RO SRO Identifies RMS trends, lowering VCT level and Sump A rising which indicates an RCS leak.
Enter AOP 1A RCS leak to stabilize plant parameters.
RO controls charging as needed to determine an RCS leak rate.
(CA STEP) Check SI not required. Crew should not SI, leak is small.
(CA STEP) Check reactor trip not required. Crew should not trip, leak is small.
(CA STEP) Check PZR level. RO should take control of charging to restore and maintain Pressurizer level.
Letdown isolation should not be needed.
Check Pressurizer pressure. RO should have to take no action for this step.
Determines LCO 3.4.13 is not met and TSAC 3.4.13.A is entered with 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> to reduce leakage.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 16 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Small RCS leak in A loop RTD Manifold (contd)
Communications:
Shift Manager will be asked to notify DCS and implement E-Plan NOTE
- Steps 7 through 18 are diagnostic and may be performed in any order.
End of evolution: Proceed to next event at Lead Examiner discretion.
RO SRO Check make up controls set at desired value OS1 should ask the SM to notify DCS and implement Emergency plan Steps 7 through 18 in AOP-1A are diagnostic and can be performed in any order as the SRO determines.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 17 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 7
- Large Break LOCA RO CREW SRO RO If there is time determine RCS leak has gotten worse and plant trip is required. Recommend trip of the unit with manual SI/CI per continuous action step 1 of AOP RO should perform EOP 0 immediate actions and verify them with the SRO. RO should perform RNO for step 4 IAs with no SI and Auto signal present -
perform manual SI and CI When reviewing foldout page criteria the crew should determine RCPs need to be tripped and adverse containment conditions exist. - SI pump should be manually started with injection verified prior to RCP securing Direct EOP 0 Attachment A to be completed Verify secondary heat sink Verify RCP Lab seal D/P
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 18 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Large Break LOCA (contd)
Communications:
STA will be asked to commence monitoring Status Trees, acknowledge request.
NOTE:
CSP-P.1 will be identified as requiring entry by the STA. Depending on the timing of the notification; the Crew may or may not transition to CSP-P.1. If they do transition prior to transition to EOP 1.3, step 1 of CSP-P.1 sends them back to procedure step in effect.
RO SRO RO SRO BOP (CA STEP) Verify RCS temperature control.
Check PORVs shut.
Check Spray valves shut.
Check if RCPs should remain running. RCPs should have been secured per foldout page criteria, if not they should be secured here.
Start monitoring CSFSTs. SRO should direct the STA to perform this function.
(CA STEP) Verify containment sump recirc not required.
Transition to EOP 1.3 containment sump recirc.
Reset SI
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 19 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Large Break LOCA (contd)
Communication:
PAB AO will be contacted to complete Attachment A of EOP 1.3 Transfer to Containment Sump Recirc. Acknowledge request. No follow up report is required because the attachment will not be complete prior to the end of the scenario.
SRO BOP BOP RO BOP RO/BOP BOP RO/BOP Check RCS break size - stay in EOP 1.3 Check if containment sump pH should be adjusted.
Check if train A SI flow should be stopped. - stop train A ECCS system-go to step 6 (CA STEP) Monitor Core Cooling Direct PAB operator to perform Attachment A Direct unnecessary personnel to evacuate the PAB Check Control Room fans armed Isolate CCW to containment Isolate CCW to NRHX Check SW Pumps 6 running Check SW header a continuous flowpath Establish CCW to RHR HXs Ensure Core Deluge valves are open
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 20 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Large Break LOCA (contd)
Communication:
PAB AO will be contacted to complete step 16.b in EOP 1.3 to locally shut both SI test line return isolation valves. Acknowledge report, wait 2 minutes and then insert trigger 12. Report when valves are shut.
Critical Task ES-1.3-A Transfer to cold leg recirculation by establishing an ECCS flowpath prior to depleting the RWST (9%)
End of scenario
- Lead Evaluator can end evaluation any time after sump recirc line up is established and crew is waiting for RWST level to reach 34%.
RO/BOP SRO BOP Align SI test lines for recirc Align RHR pump suction valves Check Train A ready for recirculation - yes Check Train B ready for recirculation -yes Check at least 1 train ready for recirculation - yes Note reference for other procedures are now applicable that do not interfere with EOP 1.3 Check RWST level < 34%
NOTE: Crew may have to transition to CSP-P.1 if not done earlier and stop after step 1. The next transition that should occur is procedure step in effect which is EOP-0 Step 14.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 21 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES Event 8:
Failure of Safety Injection to Auto Initiate Critical Task E0-D Manually actuate at least one train of SIS-actuated safeguards before transition out of EOP-0 BOP Determine that SI did not auto actuate. Action should be taken during immediate actions step 4 RNO.
SI can also be actuated per OM 3.7 which allows taking action if auto actions have failed or attachment A of EOP 0 will actuate SI.
Event 9:
Failure of 1W-1A1 Accident Fan to Auto start Communication:
If an AO is requested to locally check the fan breaker report there is nothing abnormal from the field.
BOP Determine that 1W-1A1 Accident Fan did not auto start. Action should not be taken to manually start the fan until after immediate actions are completed and verified.
This fan can be started per OM 3.7 which allows taking action if auto actions have failed or attachment A of EOP 0 will check this fan in operation.
Event 10:
Failure of 1SI-852A to Auto Open Communication:
If an AO is requested to locally check the valve breaker report there is nothing abnormal from the field.
BOP Determine that 1SI-852A core deluge did not auto open. Action should not be taken to manually open the valve until after immediate actions are completed and verified.
This valve can be opened per OM 3.7 which allows taking action if auto actions have failed or attachment A of EOP 0 or EOP 1.3 Step 15 will check this valve in the proper position.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 22 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES EOP 0 Attachment A Communication:
When contacted the PAB AO should report that SW-LW-61 and 62 radwaste SW isolation valves are both shut.
BOP Verify feedwater isolation.
Verify containment isolation Verify AFW actuation.
Check SI pumps running.
Check RHR pumps running.
Check only 1 CCW pump running.
Verify Service Water System alignment. BOP should contact the PAB to check 2 local valves.
Verify containment accident cooling.
Check CR ventilation in accident mode.
Check if main steam lines can remain open.
Verify proper SI valve alignment.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 23 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES EOP 0 Attachment A (contd)
Communication
- When contacted, wait 2 minutes and have the AO report CWPH temperature at 65F and stable.
BOP (CA STEP) Verify containment spray not required.
Verify SI flow.
(CA STEP) Check CSR temperature.
(CA STEP) Check AFW Area temperature.
(CA STEP) Check Computer Room temperature.
(CA STEP) Check CWPH temperature.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 24 of 26 SCENARIO TIME-LINE:
SEQ SEQUENCE OF EVENTS / INSTRUCTOR NOTES CREW POS EXPECTED STUDENT RESPONSES When the conditions are stabilized or at discretion of lead instructor/evaluator End the scenario by placing the simulator in freeze Inform Examinees they are to remain at their stations and cannot discuss the scenario. They are to wait for any follow up questions the examiners may have.
Crew:
No debrief or critique due to this being an evaluated scenario.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 25 of 26 1.0 PLANT CONDITIONS UNIT 1 UNIT 2 Time in core life (MWD/MTU):
800 14960 Reactor power (%):
49%
100%
Boron concentration (ppm):
1594 ppm 16 ppm Rod height (CBD @):
CBD @ 188 CBD @ 220 2.0 TECHNICAL SPECIFICATION ACTION CONDITIONS IN EFFECT TSAC TSAC 3.7.5.C One motor driven AFW pump system is inoperable in Mode 1, 2 or 3.
Description C.1 Restore motor driven AFW pump system to OPERABLE status within 7 days AND 10 days of discovery of failure to meet LCO Reason Seal replacement 3.0 EQUIPMENT OUT OF SERVICE
- G01 EDG is in day 3 of a planned 5 day maintenance outage.
- P-38B MDAFW Pump is in day 1 of a 2 day planned maintenance outage for seal replacement.
4.0 PLANNED EVOLUTIONS Immediately following turnover, commence load escalation at 15%/hr to approximately 75% power per OP-1C Startup to Power Operation Unit 1 starting at Step 5.141, referencing the continuous actions of steps 5.125 and 5.126.
TH and PAB AOs have been briefed on their responsibilities per Step 5.122.
Notifications have been made for the load escalation per NP 2.1.5.
5.0 TURNOVER INFORMATION Safety Monitor is Green.
G02 EDG is aligned to 1A05 and 2A05 4160 Safeguards busses per OI-35A, Standby Emergency Power Alignment.
G02, G03 and G04 EDGs are protected equipment.
There are 2 crews of Maintenance folks in working G01 EDG and P-38B MDAFW Pump.
P-38A MDAFW Pump is protected equipment.
1P-29 TDAFW Pump is protected equipment.
Point Beach Nuclear Plant SIMULATOR EXERCISE GUIDE (SEG)
Page 26 of 26 The plant is under severe thunderstorm watch for the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
AOP-13C, Severe Weather Conditions, is in effect.
Unit 1 rods are in AUTO and Xenon is stable Unit 1 is at 49% awaiting power escalation after completion of maintenance on the B Feed Train.
Both trains of Feed and Condensate are operating.
Clock time is real time and you have the normal shift complement.