ML20245E548

ES-D-1, Scenario Outline

ML20245E548
Person / Time
Site:	Prairie Island
Issue date:	08/27/2020
From:	NRC/RGN-III/DRS/OLB
To:
Callaway G
Shared Package
ML19127A303	List: ML20245E545 ML20245E548 ML20245E558 ML20245E581 ML20245E582
References
50-282/20-01, 50-306/20-01, ES-D-1 50-282/OL-20, 50-306/OL-20
Download: ML20245E548 (3)

Text

Appendix D Scenario Outline Form ES-D-1 Facility: PRAIRIE ISLAND Scenario No.: 1 Op-Test No.: PI-ILT-NRC-2001S Examiners: Gary Callaway Operators: Hansen, Benjamin (SS)

Joe DeMarshall Lindner, Dan (LRO)

Dave Lanyi Snider, Philip (RO)

Initial Conditions:

Reactor Power: 1x10-8 AMPS Equipment OOS: NONE Boron Concentration: 1575 PPM RCS temperature: 549°F Other: B/U PRZR heaters are ON RCS pressure: 2235 PSIG Two 40 GPM orifices are in service Xenon: Free prior to S/U Rods: CBD @ 142 STEPS Main Generator: 0 MW Turnover:

Secure the 11 TD AFW Pump Raise reactor power to the point of adding heat (POAH)

Event Malf. Event Type* Event No. No. Description 1 N (BOP) SECURE 11 TD AUXILIARY FEEDWATER PUMP R (ATC) 2 RAISE POWER TO THE POAH N (SRO) 3 C (ATC) 12 CHARGING PUMP TRIP C (BOP) 4 11 TD AFWP ACCUMULATOR LOW AIR PRESSURE TS (SRO) 5 TS (SRO) 11 CTMT VACUUM BREAKER FAILS CLOSED 6 M (ALL) FAULTED 12 SG TO CONTAINMENT 7 C (ATC, SRO) 12 MD AFW PUMP FAILS TO AUTO START 8 C (BOP, SRO) SI TO FEEDWATER/CONDENSATE RELAY FAILURE

• (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor

Appendix D Scenario Outline Form ES-D-1 Facility: PRAIRIE ISLAND Scenario No.: 2 Op-Test No.: PI-ILT-NRC-2002S Examiners: Gary Callaway Operators: Hansen, Benjamin (SS)

Joe DeMarshall Lindner (LRO)

Dave Lanyi (RO)

Initial Conditions:

Reactor Power: 100% Equipment OOS: 11 TD AFW Pump Boron Concentration: 102 PPM RCS temperature: 560°F Other:

RCS pressure: 2235 PSIG Xenon: Equilibrium Rods: CBD @ 218 STEPS Main Generator: 582 MW Turnover:

Swap running EH Oil Pumps Event Malf. Event Type* Event No. No. Description 1 N (BOP) SWAP RUNNING EH OIL PUMPS I (ATC) 2 CONTROLLING PRZR PRESS CH FAILS LOW TS (SRO) 3 TS (SRO) D1 LOCAL ALARM 4 C (BOP) TURBINE EH VALVE MALFUNCTION R (ATC) 5 RAPID DOWNPOWER TO 50%

N (SRO) 6 M (ALL) LOSS OF ALL AC 7 C (BOP) TURBINE FAILS TO AUTO TRIP 8 C (BOP, SRO) D2 FAILS TO AUTO START 9 C (ATC, SRO) 12 MD AFW PUMP FAILS TO AUTO START

• (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor

Appendix D Scenario Outline Form ES-D-1 Facility: PRAIRIE ISLAND Scenario No.: 3 Op-Test No.: PI-ILT-NRC-2003S Examiners: Gary Calloway Operators: Shift Supervisor (SS)

Joe DeMarshall Balance of Plant (LRO)

Dave Lanyi At the Controls (RO)

Initial Conditions:

Reactor Power: 60% Equipment OOS: 11 SI Pump Boron Concentration: 230 PPM RCS temperature: 554°F Other:

RCS pressure: 2235 PSIG Xenon: Equilibrium Rods: CBD @ 178 STEPS Main Generator: 338 MW Turnover:

Swap running RMU pumps Event Malf. Event Type* Event No. No. Description 1 N (BOP) SWAP RMU PUMPS I (ATC) 2 1ST STAGE PRESSURE INSTRUMENT FAILS LOW TS (SRO)

R (ATC) 3 RESTORE TAVG TO TREF N (SRO)

I (ATC, BOP) 4 PRZR LEVEL INTERLOCK CHANNEL FAILS LOW TS (SRO) 5 M (ALL) 11 STEAM GENERATOR TUBE RUPTURE 6 C (BOP, SRO) 11 & 12 RHR PUMPS FAIL TO START AUTOMATICALLY 7 C (BOP, SRO) SI TO COOLING WATER RELAY SIGNAL FAILURE

• (N)ormal, (R)eactivity, (I)nstrument, (C)omponent, (M)ajor