Text

Revision 34 to Updated Safety Analysis Report, Section 14, Safety Analysis
	ML16168A363
Person / Time
Site:	Prairie Island
Issue date:	06/03/2016
From:	; Northern States Power Co, Xcel Energy
To:	; Office of Nuclear Reactor Regulation
Shared Package
ML16168A332	List: L-PI-16-049, Revision 34 to Updated Safety Analysis Report, Appendix L, Requirement of Renewed Operating Licenses; ML16168A330; ML16168A342; ML16168A344; ML16168A345; ML16168A346; ML16168A347; ML16168A348; ML16168A349; ML16168A350; ML16168A351; ML16168A352; ML16168A358; ML16168A360; ML16168A361; ML16168A362; ML16168A363; ML16168A364; ML16168A374; ML16168A375; ML16168A376; ML16168A377; ML16168A378; ML16168A379;
References
	L-PI-16-049
	Download: ML16168A363 (521)
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... ; .... ...... ; ....... ....... ; ...... . .. . : : : : : : : : : : : : : 550 540 0 1 0 20 30 40 so 60 70 80 . REACTOR CORE LIMIT CURVES AT 2235 PSIG WITH DELTA -T TRIPS DATE 6-23-99 CAD FILE U14304.DGN NORTHERN STATES POWER COMPANY PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING H!NtESOTA FIGURE 14.3-4 REV. 18 Figure 14.4-1 1.4 ,.--, 1.2 0 c E 0 c 0 .8 c 0 ........ .6 0 0 L -L-.J L .4 Q) 0 Q .2 Time [s] Uncontrolled RCCA Withdrawal from a Subcritical Condition-Reactor Power Versus Time Rev. 27 ..... Q.) 0 a.. .s (..) c Q) a::: 1.4-r------------------------- ..... ' : 1\ o.s-""* I . ,... i \ 0.4 : II "\ r \ o.2-r* \* 1.2 r r-o -tr_,.__...._ ,_.,__.,,__-r- .....__, * .__...._,_.,.......,r--...._,_.,__.,.__...._,"T* __.,...._..._ 0 5 10 15 {s) 20 25 Time UNCOI'-HROLLED RCCA WITHDRAWAL FROM A SUBCRITICAL -REACTOR POWER VERSUS TIME OWN KJF CHECKED DATE CAD FILE 1-28-10 U14401A.DGN SCALE: NONE I NORTHERN STATES POWER COMPANY 1}, XceiEneJW PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-1A REV. 31 RED WING MINNESOTA Figure 14.4-2 .4-r-------------------, ,_..., 0 c E J 0 c 4-0 c 0 -+-' 0 .2 0 L 4-L.....J X ::J LL .1 -+-' 0 Q) I 0 0 ( 10 15 .J lime (s] Uncontrolled RCCA Withdrawal from a Subcritical Condition -Heat Flux Versus Time 20 25 Rev.27 OWN KJF CHECKED -g *e 0 z: 0 c::: 0 e LL.. -0 5 /"\ I . *( ... .\. \ \ \ "'* I I t I I I I I I I I I I I -)1. 1 Time 15 (s) 20 25 10 RCCA WITHDRAWAL FROM A SUBCRITICAL CONDITION -HEAT FLUX VERSUS TIME DATE CAD FILE 1-28-10 U14402A.DGN SCALE: NONE I NORTHERN STATES POWER COMPANY 1}, XceiEneJW PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-.2A REV. 31 RED WING MINNESOTA Figure 14.4-3 Q) L :J -o1soo L Q) a.. E Q) ._ 1000 0 Time [s) Uncontrolled RCCA Withdrawal from a Subcritical Condition -Hot-Spot Fuel Centerline Temperature Versus Time 25 Rev.27

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[s] Uncontrolled RCCA Withdrawal from a Subcritical Condition -Hot-Spot Cladding Temperature Versus Time Rev.27 'G:"750 f-10\ ............ 700 . . . . . e :::1 "E &.650 . . . . . . . . E CP (.) 600 . . . . . . . . . . . :::1 en Q) 550 . . . . . c ..E -.:;:1 c C3 500 . . 0 5 UNCONTROLLED RCCA DWN ICJF DATE 1-28-10 OiECKED CAD U14405A.DGN AlE . . . . . . . . . . . . . . .. . . . . . . . ..... . . . . I _, 10 15 Time (s) . . .. . . . . . ... . . . . . . .. 20 .. . . . . . . . . . . __!_ 25 USAR Section 14 Revision 31 wmtDRAWAL FROM A SUBCRITICAL CONDITION -HOT-SPOT CLADDING TEMPERATURE VERSUS TIME NORIHEilN STAlES POI'I'EII COMPANY tlJIII>>>Enstw SCAI£: NONE I PRAIRIE ISLAND PLANT FIGUBE 14.4-5A .REV. 31 co <0 co C') m ..... 0 -I.-Q) 0 0.... --I...J._ ..._. 0 c 0 _, u 0 I.---L: Q) 0 0.... I.-0 Q) -u :z: DWN: KIF CHECKED: 1.2 r-r-,_ r-'--,... o.a---0.6-0.4-1-0.2-1-r-r-0 j : I I J 1 I I I I I I I I I I l : I 0 1 2 3 4 Time.(s) 5 6 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (110 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -NUCLEAR POWER vs. TIME DATE: 2-19-14 NORTHERN STATES POWER COMPANY fJ JCcel SCALE: NONE I I 7 CAD FILE: U14406.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-6 REV. 33 RED WING, MINNESOTA N 'V CD CD CD C") 'I"" 0 DWN: 1.2 Q) 3= 0 ,_ Q_ --:::::l l.J._ -0 c o.a-0 :.;:::; u 0 1--X 0.6-:::::l l.J._ -+-' 0 Q) :r: Q) 0.4-1-0 (_) 5 6 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (110 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -CORE HEAT FLUX vs. TIME K.JF DATE: 2-19-14 NORTHERN STATES POWER COMPANY fJ JCcel SCALE: NONE I 7 CHECKED: CAD FILE: U14407.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-7 REV. 33 RED WING, MINNESOTA N 'V CD CD CD C") 'I"' 0 22ao..---------------------------. --0 2260-C/) o_ ....__... ().) !....._ ::::1 C/) C/) (]) !....._ 0.... 2240--1..... f-(J) N -::::1 C/) C/) ().) 0: 2220-1 2 3 4 Time,(s) 5 6 7 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (110 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -PRESSURIZER PRESSURE vs. TIME DWN: K.JF CHECKED: DATE: CAD FILE: 2-19-14 U14408.DGN NORTHERN STATES POWER COMPANY fJ JCcel SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-8 RED WING, MINNESOTA REV. 33 N 'V CD CD CD C") 'I"" 0 -1'4) .........

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0 3= ..._ Q} N *c ::::l rn CJ) ()) ..._ 0... OWN: KJF CHECKED: 365 360 355 350 345 340 0 2 3 4 Time,(s) 5 6 7 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (110 pcrnlsec-FULL POWER) MINIMUM REACTIVITY FEEDBACK -PRESSURIZER WATER VOLUME vs. TIME DATE: CAD FILE: 2-19-14 U14409.DGN NORTHERN STATES POWER COMPANY SCALE: NONE (l XceiEnergy-1------'--------1 PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-9 REV. 33 RED WING, MINNESOTA N co co co M ,.. 0 ......-... LL I CJ"l Q) -o ......__... Q) -+--J 0 Q) 0.... E Q) ..___ -Q) (/') (/') Q) > Q) CJ"l 0 Q) > <X: DWN: K.JF CHECKED: 564 562-560 558-1-1-556-1-1-1-554-r-1-1-552-1-f-55o--548-546 l l I I I I I 0 1 2 3 4 Time,(s) 5 6 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (110 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -AVERAGE VESSEL TEMPERATURE vs. TIME DATE: 2-19-14 NORTHERN STATES POWER COMPANY fJ JCcel SCALE: NONE I 7 CAD FILE: U14410.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-10 REV. 33 RED WING, MINNESOTA N 'V CD CD CD C") 'I"" 0 DWN: 0:::: CD :z 0 CHECKED: KJF 4.5-4 3.5 3 2.5 - UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER {110 pcrnlsec-FULL POWER) MINIMUM REACTIVITY FEEDBACK -DNBR vs. TIME DATE: CAD FILE: 2-19-14 U14411.DGN NORTHERN STATES POWER COMPANY '(}, Xcel Enerw SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-11 RED WING, MINNESOTA REV. 33 C\1 oq CD CD co (t) ,.. 0 --I..... Q) 3:: 0 Q_ --::J LL... -0 c 0 ..._, u 0 I..... --L Q) 3:: 0 Q_ I..... 0 Q) -u ::J ::z: DWN: CHECKED: 1.2 1-r-1-1 ---o.a----0.6---0.4-1-0.2-1-r-1-0 I I I I I I I I I I 0 20 40 60 Time.(s) UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (1 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -NUCLEAR POWER vs. TIME DATE: I 80 K.JF 2-19-14 NORTHERN STATES POWER COMPANY SCALE: NONE fJ XceiEnergy-1-----..a......-----1 CAD FILE: U14412.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-12 REV. 33 RED WING, MINNESOTA N 'V CD CD CD C") 'I"" 0 .....--.. I.-Q.) 3:: 0 Q_ --:::::5 l..L... -0 c 0 -+-J u 0 I.---X :::::5 l..L... ......... 0 Q.) :::r: Q.) I.-0 u DWN: K.JF CHECKED: 1.2 1 f-t-o.a-f-0.6-f-r--0.4-t-r-\ f-0.2 I I I I I I I I I I 0 20 40 60 Time,(s) UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (1 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -CORE HEAT FLUX vs. TIME DATE: CAD FILE: 2-19-14 U14413.DGN NORTHERN STATES POWER COMPANY fJ JCcel SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-13 RED WING, MINNESOTA N 'V CD CD CD C") 'I"" 0 I 80 REV. 33 22ao.......------------------------ ........ DWN: --2260-0 2240-<J.) L :::;, (/') (/') <J) L Q_ <J.) N *c :::;, (/') (/') <J) 1.-o_ 2220-22oo-2180-2160 r-r-r-1-r-r-0 I I I I I I 20 40 Time,(s) 60 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (1 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -PRESSURIZER PRESSURE vs. TIME K.JF DATE: 2-19-14 NORTHERN STATES POWER COMPANY fJ JCcel SCALE: NONE I CHECKED: CAD FILE: U14414.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-14 RED WING, MINNESOTA I 80 REV. 33 N 'V CD CD CD C") 'I"" 0 --I") 4-' ---Q) E ::::l 0 > !I-Q) 4-' 0 3:: !I-Q) N *c :::s en en Q) !I-0.... DWN: CHECKED: 460 f-r-f-440-f-r-f-420-r-r-r-400-r-f-'-3ao----360---340 I I I I I I I I I I I 0 20 40 Time,(s) 60 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (1 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -PRESSURIZER WATER VOLUME vs. TIME K.JF DATE: CAD FILE: 2-19-14 U14415.DGN NORTHERN STATES POWER COMPANY fJ JCcel SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-15 RED WING, MINNESOTA N 'V CD CD CD C") 'I"" 0 I 80 REV. 33 .....-.... LJ.._ I O"l (]) ""0 --(]) !....... :::J ............ 0 !....... (]) o_ E (]) I---(]) U) U) (]) > (]) O"l 0 !....... (]) > <( 570 1-1-1-568-'----566---564-1-562-r-r-r-560 1---558---556-1-1-554-1-1-1-552 I I I I I J I I I 0 20 40 Time,(s) 60 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER (1 pcmlsec -FULL POWER) MINIMUM REACTIVITY FEEDBACK -AVERAGE VESSEL TEMPERATURE vs. TIME DWN: KJF DATE: 2-19-14 NORTHERN STATES POWER COMPANY '(}, Xcel Energy SCALE: NONE I CHECKED: CAD FILE: U14416.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-16 RED WING, MINNESOTA N CD CD CD (") 'I"" 0 80 REV. 33 DWN: KJF CHECKED: 0 20 40 Time,(s} 60 80 UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER {l pcrn/sec-FULL POWER) MINIMUM REACTIVITY FEEDBACK -DNBR vs. TIME DATE: CAD FILE: 2-19-14 U14417.DGN NORTHERN STATES POWER COMPANY SCALE: NONE (} XceiEnergy-1------'------1 PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-17 REV. 33 RED WING, MINNESOTA 1.8.----------------------------------------------------------------------------- 1.6 a:: m E 1.5 :I E 'E i 1.4 OTDT HNF ---------------------------------------------*----------* 1.3+----------------------------------------------------------------------------- OTDT HNF HPFR 10 100 1000 Insertion Rate (pcmlsec) l-+-Maximum Feedback ----Minimum Feedback I UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER, 100% POWER DWN: DATE: 2-19-14 NORTHERN STATES POWER COMPANY SCALE: NONE fJ XceiEnergy-1-----......_-----1 K.JF CHECKED: CAD FILE: U14418.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-18 REV. 33 RED WING, MINNESOTA N 'V CD CD CD C") 'I"" 0

- I 1.8 1.6 NoTrip OTOT 1.4 -------.-----------------------------------------

--_-_--_-_-_-_. ______________________ __ OTDT HNF HPFR 10 100 1000 lna.tlon Rate (pcmfsec) !-+-Maximum Feedback --Minimum Feedback j UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER, 60% POWER DWN: DATE: 2-19-14 NORTHERN STATES POWER COMPANY SCALE: NONE fl XceiEnergy 1------..r....------1 KJF CHECKED: CAD FILE: U14419.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-19 REV. 33 RED WING, MINNESOTA C\1 v CD CD co M ,.. 0 3.2 a: m ii 2.7 E ::s E c j 2.2 1.7 r NoTrip OTDT ------*------------------------------------------------+ OTDT HPFR ' DWN: K.JF CHECKED: 10 100 1000 Insertion Rate (pcmlsec) I-+-Maximum Feedback ----Minimum Feedback I UNCONTROLLED RCCA BANK WITHDRAWAL AT POWER, 10% POWER DATE: 2-19-14 NORTHERN STATES POWER COMPANY SCALE: NONE fJ XceiEnergy-1-----......_-----1 CAD FILE: U14420.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-20 REV. 33 RED WING, MINNESOTA N 'V CD CD CD C") 'I"" 0 ...--... 0 c E 0 c -0 c 0 :;::i 0 0 '--....__... ..... Cl> 3: 0 a.. ..... 0 0 :::J z 1.15 1.1 1.()5 1 .95 .9 .85 .a 0 50 100 150 Time (seconds) Figure 14.4-21 Dropped RCCA -Representative Transient Response -Nuclear Power vs. Time 200 Rev. 27 1.15 .....--0 c .E t.t 0 c: -0 t.OS c 0 :.;:; 0 0 .... -..__.... X :::::1 G: ....._. 0 (1) :r: (1) .... 0 c...> .95 _g .85 0 50 100 150 Time (seconds) Figure 14.4-22 Dropped RCCA-Representative Transient Response -Core Heat Flux vs. Time 200 Rev. 27 ,.-.... 0 2300 ...__.... Q.) ,._ V> V> 2250 0... ,._ Q.) N Q.) ,._ 0... .0 50 100 150 Time (seconds) Figure 14.4-23 Dropped RCCA -Representative Transient Response -Pressurizer Pressure vs. Time 200 Rev. 27

.......--.. L.a.... I g-588 ""0 ..__.. 100 150 Time {seconds) Figure 14.4-24 Dropped RCCA -Representative Transient Response -Vessel Average Temperature vs. Time 200 Rev. 27 0 e e 1 0 s:: -0 c: . 8 0 .., . 6 Q .... -* II 0 0. ... Cl * .., :I ;z * *

2 0 0 50 100 150 200 Time [ s ] Figure 14.4-30 RSG -Feedwater Flow Increase to Both Loops -Hot Full Power -Automatic Rod Control Case -Reactor Power Versus Time 250 Rev. 27

11:' 2250 Q) 2200 ... fD 2150 " .... a. 2100 ... Q) N *-2050 .... ;::,* : 2000 Q) .... 100 150 200 250 Time [s] Figure 14.4-31 RSG -Feedwater Flow Increase to Both Loops -Hot Full Power -Automatic Rod Control Case-Pressurizer Pressure Versus Time Rev.27 ...... 565 L&. ........ u 560 '-:1 -sss Q ... :. 550 E v 1-545 v 0' " 54{) to. v > < 535 : 530 ($ v > 525 0 so 100 Time Figure 14.4-32 RSG -Feedwater Flow Increase to Both Loops -Hot Full Power -Automatic Rod Control Case-Core Average Temperature Versus Time 250 Rev.27 -600 I.a.. ....... Ill * .: 580 .., "" ., Q. E

1-560 tJ' * ...J ., g u 540 ., c: .., -0 % 520 0 .... ' ' 50 I 100 Time Figure 14.4-33 150 200 250 [ s] RSG -Feedwater Flow Increase to Both Loops -Hot Full Power -Automatic Rod Control Case -Vessel Outlet and Inlet Temperatures Versus Time Rev.27

5 CD z 03 2 0 100 150 200 Time [s] Figure 14.4-34 RSG -Feedwater Flow Increase to Both Loops -Hot Full Power -Automatic Rod Control Case -DNBR Versus Time 250 Rev.27 1.2 -:::.:::-- 0 c *-E 1.1s-0 c 4-0 c 0 :.;::::; ,,_ 0 0 .._ 4-...__.. .._ ws-Q) 3: 0 Q_ 1-J 0 1 Q) u :::J :z: 0.95 0 MINIMUM DWN: KJF DATE: 2-19-14 C HECKED: CAD Ul4435.DGN FILE: -I I 50 100 150 200 Time (sec) TWENTY PERCENT STEP LOAD INCREASE -REACTIVITY FEEDBACK /AUTOMATIC ROD NUCLEAR POWER VERSUS TIME NORTHERN STATES POWER COMPANY (l Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WIN G MINNE S OTA 250 300 CONTROL SCALE: NONE I FIGURE 14.4-35 REV. 33 C\1 oq CD CD CX) (I) .,... 0 2260 f-r-r 'Y -vvy YV ..... -v --2250 l en CL ..___.,.-Q) 2240-"'-:::J en en "'-2230-o._ "'-<I) N *;;:::: 2220-:::J en en Q) "'-o._ 2210-\) 2200 I I I I I I I I I I I I L I I I I I I I I I I I 0 50 100 150 200 250 300 Time (sec) TWENTY PERCENT STEP LOAD INCREASE -MINIMUM REACTIVITY FEEDBACK /AUTOMATIC ROD CONTROL PRESSURIZER PRESSURE VERSUS TIME OWN: KJF DATE: 2-19-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(} Xcel Energy CHECKED: CAD U14436.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-36 FILE: RED WING, MINNESOTA REV. 33 N v <0 <0 CX) (I) ,.. 0 360 r f--,.....--.., 355 n '-+-"-----""' Q) 350 E ::::! 0 345 > L Q) --+-' 340 0 3 L 335 Q) N *;;::: ::::! (/) 330 (/) Q) L 0.... 325 320 0 MINIMUM OWN: KJF DATE: 2-19-14 CHECKED: CAD U14437.DGN FILE: I I I I I I I I I I I I I 50 100 150 200 250 Time (sec) TWENTY PERCENT STEP LOAD INCREASE -REACTIVITY FEEDBACK /AUTOMATIC ROD CONTROL PRESSURIZER WATER VOLUME VERSUS TIME NORTHERN STATES POWER COMPANY SCALE: NONE I '(}, Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-37 RED WING, MINNESOTA 300 REV. 33 C\1 ""' <D <D m M ,.. 0 OWN: KJF CHECKED: 562 ,----.... LL 0 561 Q) 1-::::! -+--' 560 =l Q) 0.... E Q) 1---559-Q) CJl 0 1-Q) > <I: -Q) en en Q) > 55B-557 556 DATE: CAD FILE: 0 v 50 100 150 Time (sec) 200 TWENTY PERCENT STEP LOAD INCREASE -I l I J 250 MINIMUM REACTIVITY FEEDBACK /AUTOMATIC ROD CONTROL VESSEL AVERAGE TEMPERATURE VERSUS TIME 2-19-14 NORTHERN STATES POWER COMPANY '(}, Xcel Energy-SCALE: NONE 300 I U14438.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-38 REDI'.lNG. MINNESOTA REV. 33 N o::t <0 <0 co (I) ,.. 0 0:::: m :z: 0 DWN: KJF CHECKED: 2.1 2 1.9-1 s-17-v---1.6 1 5 I 0 50 100 150 Time (sec) 200 250 300 TWENTY PERCENT STEP LOAD INCREASE -MINIMUM REACTIVITY FEEDBACK /AUTOMATIC ROD CONTROL DNBR VERSUS TIME DATE: 2-19-14 NORTHERN STATES POWER COMPANY SCALE: NONE I (! Xcel Enerw CAD U14439.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-39 FILE: RED WING, MINNESOTA REV. 33 C\1 "" U) U) co M ,.. 0 DWN: KJF CHECKED: 25QQ-r--------------------------, ....--24oo-cn .............. E __Q ..._... 2300 0 LL. 2200 Q) --1-' (/) 0 --1-' 2100 r-F-2000 I I I I I I I 0 50 100 150 Time (sec) 200 TWENTY PERCENT STEP LOAD INCREASE -250 MINIMUM REACTIVITY FEEDBACK /AUTOMATIC ROD CONTROL TOTAL STEAM FLOW VERSUS TIME DATE: 2-19-14 NORTHERN STATES POWER COMPANY '(), Xcel Energy-SCALE: NONE I CAD FILE: U14440.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-40 RED WING, MINNESOTA 300 REV. 33 C\1 o;t CD CD co M ,.. 0 -* c 0 0 D -0 t-.76 ----*-----------*-----------*-----------*----------- ' ' I ' * ' ' * ' --------*-----------*-----------*-----------

*-----------*-----------' ' -----------*-----------*-----------*---

Figure 14.4-41 Total Core Inlet Flow vs. Time Complete Loss of Flow, Two Pumps Coasting Down (CLOF) Rev. 27 1.1 1 0.9 5 !:!=--9 0.8 u.. 1-w __. 0.7 0 u Q 0.6 0.5 0.4 0 2 4 6 8 TIME {SEC) TOTAl CORE INLET FLOW vs. TIME COMPLETE LOSS OF FLOW, TWO PUMPS COASTING OWN ICJF DATE 2-4-10 NORtHERN STAlES POWal COIIPANV CAD PRAIRIE ISLAND PLANT Fl lf 10 12 USAR Section 14 Revision 31 14 DOWN (CLOF) SCALE: NONE FIGURE 14.441A REV: 31 -.-0 0 i: -* E .75 ' ----*-----------*-----------*-----------*----------- ' . ' ' ' t I t I t I I t ' ' ' ' t I ' ' ' I ' ' --------*-----------*-----------*----------- CL .U -----------*-----------+

*-----------*-----------

0 .3 en 0 a:: I -----------*-----------*-----------*--- 0 2.1 s.s *u Time [seconds] 11.2 14 Figure 14.4-42 RCS Loop Flow vs. Time Complete Loss of Flow, Two Pumps Coasting Down (CLOF) Rev. 27 DWN IU F CAll: CHEQ(B) CAD F ll£ 1.1 1 z 0 0.9 0 .... LL. u 0.8 ::;, .... 0.7 a.. 0 0 .... en 0.6 0.5 0.4 0 2 I 4 6 8 TIME (SEC) RCS LOOP FLOW vs. TIME 10 12 USAR Section 14 Revision 31 14 COMPLm LOSS OF FLOW , TWO PUMPS COASTING DOWN (CLOF) 2-4-10 NORiliBIN STATES POWEll COMPAHY SCALE: HONE I tl >>:eeEna/w U1.UC2A.DGN PRAIRIE ISlAND PLANT FIGURE 14.4-42A .RElf. 31 r-'1 z ......, L.
3t 0 a. L. 0

u ::::J z
.72 * .ca 0 I ------*-----------*-----------*----------- 1 -----------*-------- --*-----------*-----------*----------- 1 I I I I I I I I I I I I * -----------*-------- -*-----------*-----------*----------- 1 I I I I I I I I I I I I I *
I I I I I I I I I I

I -----------*----------

-----------*-----------*-----------
5.1 u Tlme [seconds] Figure 14.4-43 Nuclear Power vs. Time 11.2 Complete Loss of Flow, Two Pumps Coasting Down (CLOF) 14 Rev. 27 1.2 1 0.8 z 0 !!::. Q! 0.6 0 ..... u :::1 z 0.4 0.2 0 OWN KJF DATE OtEOCBJ CAD FlU: i I I 0 2 4 6 8 10 TIME (SEC) NUCLEAR POWER vs. TIME COMPLETE LOSS OF FLOW, TWO PUMPS COASTING 2-4-10 NORTHSIN STATES POWER COIFANY flJriiiii.Eiww U144431.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT RBI WNl.IIINB:li"A -12 DOWN (CLOF) USAR Section 14 Revision 31 14 SCALE: NONE I FIGURE 14.4-43A REV.31 )( :I a&: -0 * % * .,.
f 0 0 J6 -----------*----

*-----------*-----------*-----------

J2 -----------*----------
-----------*-----------*-----------
1 I I I I I I I I I I AI -----------*-----------!---

*-----------*-----------

lt -----------*-----------*-----------*---

*-----------

Figure 14.4-44 Core Average Heat Flux vs. Time Complete Loss of Flow, Two Pumps Coasting Down (CLOF) Rev.27 I 0-8 z 0 !:-3 0.6 u.. s J: w w 0.4 w "' 0 u 0.2 0 0 2 4 6 8 10 TIME (SEC) CORE AVERAGE HEAT FlUX vs. TIME COMPLETE LOSS OF FLOW, TWO PUMPS COASTING DWN KJF DATE 2-4-10 NORTHERN STATES POWER COW'NIV jlJraerEraw OtECICED CAD lll4-44-4A.DGN PRAIRIE ISLAND NUCLEAR GENERATING PlANT FILE REDWWG.II-A 12 DOWN (CLOF) USAR Section 14 Revision 31 14 SCAI.E: NONE I .REV. 31 00 (.0 00 (") 0>
2220 I I I I t I I I I I I -----------*-----------*-----------

*-----------*-----------*--

*-----------

2160 -----------*-----------*-----------*-----------*-

Figure 14.4-45 Pressurizer Pressure vs. Time Complete Loss of Flow, Two Pumps Coasting Down (CLOF) Rev. 27 2400 2350 :$ 2300 w a.=: :J w a.=: A.. a.=: w :J 2250 Ill Ill A.. 2200 2150 0 2 4 6 8 TIME (SEC) PRESSURIZER PRESSURE vs. TIME COMPLETE LOSS OF FLOW, TWO PUMPS COASTING l7o'ffl ICJF DATE 2-4-10 NORTHBIN STATES POW8l COMPANY tl ,.,E'nlll9r 01ECKID CAD Ul#45A.DGN PRAIRIE ISLAND PLANT FI LE 10 12 USAR Section 14 Revision 31 14 DOWN (CLOF) SCALE: NONE FIGURE 14.4-45A REV, 31 loop ---*loop Hot leg Cold leg

'&:' c.
0 ! :J -e

Q. E Q. 0 .3 en 0 0:: 560 530 I I I I I I I I * * * * -----------*-----------*-----------*-----------*-----------

I I I

I I ' I I -----------*-----------*-----------*-----------*--

I ' I ' ' I .. ' I ' I I I I I

_,___ I ---r--1 -- ' I I I I I I I I f I I I I I f I I I f I I f f I I f f I I I z.a 5.1 1.4 11.2 Time [seconds] Figure 14.4-46 RCS Faulted Loop Temperature vs. Time Complete Loss of Flow, Two Pumps Coasting Down (CLOF) 14 Rev. 27 OWN KJF DATE 01ECKED CAD FILE LOOP 1 HOT LEG -----LOOP 1 COLD LEG 620 600 li:" 0 w Q. w 580 <>! :::J w 4.. 1-4.. 0 560 0 _, (/) 540 ------------

520 0 2 4 6 8 10 TIME (SEC) RCS FAULTED LOOP TEMPERATURE vs. TIME ---12 USAR Section 14 Revision 31 14 COMPLETE LOSS OF FLOW, T'NO PUMPS COASTING DOWN (CLOF) 2-<4-10 NORTiiEIIN STAlES POWER COIFIINY SCALE: NONE I U14446ADGN PRAIRIE ISLAND PLANT FIGURE 14.4-46A .REV. 31 co (!) co (') 0> ...... 0 Q) Q) c: c: 0 _c: (..) 1.1

.7 I I I I I I I I I -------*---

*---------------*---------------

1 I I I I I I I I 1 I I I I I I I I I I I I I I I I I ---------------*----------- ---*---------------*--------------- 1 1 I I I I I I I I I I I I I I I I I I I ---------------*--------------
---------------*---------------
1 1 ' I I I I I I I I I ---------------*---------------*--- 1 I I I I I I I I I I I I I I I I I ' I I ' I I I ' -----------*--------------- 1 I t I I I I I I ---------------*---------------*---------

*---------------

1 I I I I I I I I I I I I I 1 I I I I I I I I 1 I I 1 I I I I I I I I I I I 1 I t I I I 1 I I I I I I I I ---------------*---------------*---------------*------------ 1 I I I I I I I I. I I I *
I I I I 0 3 6 9 12 lime (seconds)
Figure 14.4-47 Hot Channel Heat Flux vs. Time Complete Loss of Flow, Two Pumps Coasting Down (CLOF) Rev.27 1.2 1 0 0.8 >< :::J _, LL I: 0.6 _, w z u 0 0.4 I: 0.2 0 OWN KJF 01\lE OiECK!D CAD FilE f.-I I I I \ 0 2 4 6 8 10 TIME (SEC) HOT CHANEL HEAT FLUX vs. TIME COMPLETE LOSS OF FLOW, TWO PUMPS COASTING 2-4-10 NORltiEIIN SfATES POWER CCUPAHY flx.la.tw U14447A.DGI-I PRAIRIE ISlAND NUCLEAR GENERATING PLANT RBl WNLIIIHIIOll\ 12 14 USAR Section 14 Revision 31 DOWN (CLOF) SCALE: NONE I FIGURE 14.4-47A RBV.31 Transient DHBR ----DHBR Limit 3 0:: 2.5 0 2 1.5 0 I I I I I I I I I I ---------------+---------------+---------------+---------- 1 I I I I I I I I I I I I I I I I I I I I I I I I I I ---------------+---------------+---------------+--- 1 I I I I I I I I I I I I I t I t I t t t I ---------------+---------------*----------- 1 I I I I I I t I I I I I I I I I I I I I --+--------------- 1 I I I I I I I I ---------------+---------------+---

+---------------

1 t I I I I I I
t I I I I I I I I I I I I I +-----------
--+---------------*--------------- 3 1 I I I ---'---------*----

6 Time {seconds)

Figure 14.4-48 DNBR vs. Time 12 Complete Loss of Flow, Two Pumps Coasting Down (CLOF) Rev. 27 5 4.5 4 3.5 <><! <0 z 3 Q 2.5 2 1.5 1 0 2 4 6 8 TIME (SEC) DNBR vs. TIME COMPLETE LOSS OF FLOW, TWO PUMPS COASTING OWN KJF DATE 2-4-10 NCllllliBIN STAlES POWER Cllloi'ANY tl JliiiiErlelpy CHECKED CAD U14U8A.DGN PRAIRIE ISLAND NUCLEAR GENERATING PlANT Fll£ IEDWINiiMNNEIICJrA 10 USAR Section 14 Revision 31 12 DOWN (CLOF) SCALE: NONE I F1GUHE 24.4-48A REV. 31 IX) c.o IX) ("') O'l ...... 0 f 0 0 ..... Ja ----------*-----------*-----------*-----------*----------- .52 0 * * * ----------*-----------*-----------*-----------*-----------

t *

t

I I *

t

I --------*-----------*-----------*-----------*-----------
-*-----------*-----------*-----------*----------- 1 *
I t

t I 5.5 u Time [seconds]
Figure 14.4-49 Total Core Inlet Flow vs. Time 11.2 Locked Rotor I Shaft Break-RCS Pressure I PCT Case 14 Rev. 27 DWN KJF CHECKED DATE CAD FILE ......... 1.1-r-----,-----:-----:----:1

, I I I I I I I I I I ----*-------+------------*------------*------------*------------

1 I I I I I I I I I l I & I I I I *
I I I I I I I I I I I I t OS ----------*t**----------t*-----------t**---------*t**----------

I I I I I I I I I I I I I I I I I I I I I I I I I I I ----------+------------*------------*------------*------------
1 I I I ......... ().8 I I I I I I I I I I I I I I I I I I I I -i) : : : : -- 1 *
I I I I ' I I I I I ' I I I I I OS ----------;------------r------------r------------r------------

I I I I I I I ' I ' I I I I I ' I I o.s ------------r----

*------------*------------*------------

1 I . . I I 1 I I . . I : I I I I ------------r------------r------------r------------r------------
I I I I I I I I I I I I I I I I I I I I I I I 0 2 6 Time [seconds]
TOTAL CORE INLET FLOW vs. TIME 8 LOCKED ROTOR /SHAFT BREAK -RCS PRESSURE /PCT CASE 10 USAR Section 14 Revision 31 Z-4-10 SCALE: NONE I NOATliERN STATES POWER COMPANY U1<<49A.DGN PRAIRIE ISLAND PLANT FIGURE 14.449A REV. 31 00 (0 00 ("') Ol ..... 0
.7 ... .I -.2 0 * * * * * * * *
I

I I I I I ----------*-----------*-----------*-----------*-----------

I I I I I I I I I I I I I ---------*-----------*-----------*-----------*-----------
1 I I I I I I I I I I I I I I I I I I I *
I I *

I I ------*-----------*-----------+-----------*-----------
1 ' I I I I * * * * *
I I * * . .. *

I I I I I I
___ ..!.,._. _______ _ 5.1 1.4 nme [seconds 1 11.2 ... Figure 14.4-50 RCS Loop Flow vs. Time Locked Rotor I Shaft Break-RCS Pressure I PCT Case Rev.27 IJWN KJF 01EOCED DATE a.o FILE I I I I I I I I J I ------------*------------*------------*------------*------------ 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I oa -----------r------------r------------t------------r------------
I I I I I I I I I I I I I I I I I I I I I I I I I I I o.s -----------t------------r------------r------------r------------

I I I I I I I I I I I I I I I I I I I I I I I I I I I -

I I I I I I I I I I I I I I I I I I I I I I I I I I I 12 -----------!------------r------------r------------r------------

I I I I I I I I I I I I I I I I I I I 1 I I I I I I I o -----------

r------------r------------r------------

' I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I I I I I D 2
6 Time [seconds]
8 10 RCS LOOP FLOW vs. TIME LOCKED ROTOR /SHAFT BREAK -RCS PRESSURE /PCT CASE USAR Section 14 Revision 31 2--4-10 NORIHSlN STATES l'll'NER COMPANY jlx.IEtlei!JY SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT IEIWI'IIl .. NI&DTA FIGURE 14.4-5QA .REV. 31 U14-450A.DGN ro <0 ro (") 0> ...... 0
n 0 -*-----------*-----------*-----------*-----------
I ' . ' ' ' -----------*

*-----------*-----------*-----------

' * ' ' ' ' * ' * * ' 1 ' . I -----------*

*-----------*-----------*-----------

' -----------*--

*-----------*-----------*-----------

5.f u Time [seconds] Figure 14.4-51 Nuclear Power vs. Time 11.2 IC Locked Rotor I Shaft Break-RCS Pressure I PCT Case Rev. 27 OWN ICJF OiECKED DATE CAD FILE z 0 .!::=.. .... CD !II: 0 0... .... g c:; ::s z CJ.8 0.& 0.4 I I I I I I I I I I I I I I
I I I ' I I ' I : I I o o I 0 0 I I I I 0 I I o 0 I ' ' ' I 0 0 0 I I I o o 0 0 I 0 I I ------------*----

*------------*------------*------------

1 ' : ' I I ' I I I I ------------*------ 1 I I I I I : I I I I ------------*------- 1 I I I I I I . * . . ' 0 I o 0 I 0 I I I I I I I 0 I I 0 I I I 0 I I I I I I I I I I 0 I I I -----*------------*------------*------------ 1 I I I I I I I I I I I I I I I I I I I I I I I 0 I I 0 I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ------------*------------*------------ ' I ------------!---------- ll.2 I . I I . I I . I I I ' 0 2 4 6 Time [seconds] NUCLEAR POWER vs. TIME 8 LOCKED ROTOR /SHAFT BREAK -RCS PRESSURE /PCT CASE 10 USAR Section 14 Revision 31 2--4-10 SCALE: NONE I li14451A.DGN FIGURE 14.4-51A REV. 31 ()() (.0 ()() <') (J) -0 * %
Q e

0 0 -----------t

*-----------*-----------*-----------

I t t t I t t t t t t I t .72 ---*-----------*-----------*----------- t I I t I ' ' ' I t I t t 1 I I I t I -----------*-----------*-------------------*-----------*-----------*-----------*----------- Figure 14.4-52 Core Average Heat Flux vs. Time Locked Rotor I Shaft Break -RCS Pressure I PCT Case Rev.27 OWN KIF CHECKED DATE CloD FILE ,......., :z: E2 ........ I I I I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 08 ------------r----------- r------------r------------:------------ i:i: I I I ........ c Q) ::c 1!!: 0 0 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I t I I I
------------:------------
1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I B4 ------------+---**-------*------------1------------*----- l I I I I : : I I I 0 6 lime [seconds] CORE AVERAGE HEAT FLUX vs. TIME LOCKED ROTOR /SHAFT BREAK -RCS PRESSURE /PCT CASE 10 2--4-10 NORlllBIN STAlES POWER cor.FANY USAR Section 14 Revision 31 Ul-4452A.DGN PRAIRIE ISLAND NUCL!=Afl GENERATING PLANT FIGURE 14.4-52A REv. 31 MNNEiSOTA ..-0
2600 I I -----------r-----------r-----------r-----------r----------- 1 I I I 1 I I I 1 I I I I I I I 1 I I I I I I I I I I I I I I I I I I I 1 I I 1 I I I I I 1 I I -----------*--

*----------*t*----------

1 : 1 I I I I I I I I I I I I I I I I I I I I I I I I I : I -*-----------*-----------*- 1 I I I I I I I I I I I I . I I I I Figure 14.4-53 Pressurizer Pressure vs. Time Locked Rotor I Shaft Break-RCS Pressure I PCT Case Rev.27 OWN KJF DATE CAD Fi lE -0 'iii c...
* * * . . . * * * *

I I I I ------------*------------*-------*----*------------*------------
1 t I I I 1 I I I I I I I ) I I I t I I I I I I I I I I I I I I I I I I I I I J I I 0 0 I I I I I I I I ------------*------- ---*------------*---

*------------

I I I ...... 2500 ::I en en c... ..... CD I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I J I I I J I I I I J I I I I ------------

-*------------+-

*----------I I I 2400 U) I I I I 0 I I I I !!;! I I I I J J c... I 0 I I I I I J I I I J I I I I I I I I I I I I I ------------*------------*------------*------------*------------

1 I 2JOO I I I I I I I J I J I I ' . 0 I I I I 0 ' . ' . 0 4 6 Time [seconds] 10 PRESSURIZER PRESSURE vs. TIME LOCKED ROTOR /SHAFT BREAK -RCS PRESSURE /PCT CASE USAR Section 14 Revision 31 2-4-10 SCAt!: NONE I FIGURE 24.4-53A REV. 32 CXl (Q CXl (") 0> w a:: => (!) u:: ,...... 0 -.; 0.. f ::J ., .. f E ::J c
0:: L. * ..3 .. .. ., * >
2620 2460 1 I I I I I I I I I I I I -----------*-----------*-----------*-----------*----------- 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I *-----------*

*-----------*-----------

I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I I ---*-----------*-------- -*-----------*----------- 1 *
I

I I I I I I I I 1 I I I -------*-----------*-----------*----------
5J u Time [seconds] Figure 14.4-54 11.2 Vessel Lower Plenum Pressure vs. Time Locked Rotor I Shaft Break-RCS Pressure I PCT Case Rev.27 D'tVN KJF 01\lE 01ECXID CMJ FILE 2700 I I I I I I . I I I I I I I I I I I I ....... 21100 ------------*------------*------------*------------*------------ I 0 I *c;; I I c. I --r-._. I Q) I I ... I ::::J I Cl'> I "" I I I c.. I I E ------------

*------------*------

I ::::J 2500 ----*------------ .:: * ..!!! I . I . a.. I I I I ... I ' Q) I l lll: I I ' ..9 . ' I ' I ' Qj I ' I I Cl'> I I ., I I I I ------I I I 2400 -----*------------*------------+------------*------------.
I I I I I I I I I I I I * * *

2JOO 0 8 10 lime [seconds]
VESSEL LOWER PLENUM PRESSURE vs. TIME LOCKED ROTOR /SHAFT BREAK -RCS PRESSURE /PCT CASE NORIHEJlN STATESPOWBI a:JIIf'Nlf SCAlE: USAR Section 14 Revision 31 NONE l PRAIRIE ISLAND PLANT FIGURE 14.4-54A. iUW.31 . 0
0 ..........
f :J -e
D. E

t-Q. 0 .9 en 0 loop I Hol leg ---*loop 1 Cold leg 620 -----------*-----------*-----------*-----------*-----------
530 -------*-----------*-----------,

*-----------*-----------*--' ' ' ' . ' t I I I I I I I I -' I I I / . . . ,. I I I,.. . ' ... ' I I .,... I / ' ,. ' ' ' '

I I _.-' I
' -----------*-----------*-----------*-----------*-----------
1 I I I
I I *

t *

I 0 u 1.4 Time [seconds]
Figure 14.4-55 RCS Loop Temperature vs. Time Locked Rotor I Shaft Break-RCS Pressure I PCT Case " Rev.27 OWN ICJf CHECXID CAD FILE loop Hot Le9 Colli leg I I I I I I I I I I -*----------*----*-------*------------*------------*------------ 1 I I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I
I 1 I I t I I I I I I I I I I I I I I 5l' I I I I 600 : : I I I I I I I I I I I I I I I ------------*------------*------------*-----

*------------

1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I ------------*------------*------------*------------+----
I I I I I I I I t I I I I I I I I I I I I I I I I I I ,_. I I I I-""' 540 ------------*------------*------------*-----------;.------------
*-----:

I I I I I I I I I I I I I t I I 520 1 I I I I I I I I t I I I I I I I I I I I I I I I f I I 0 2. 4 6 Time (seconds]
RCS LOOP TEMPERATURE vs. TIME 8 LOCKED ROTOR /SHAFT BREAK -RCS PRESSURE /PCf CASE 10 USAR Section 14 Revision 31 IIORiliiHi STAlES POWBI COMPANV flXMEileiW SCALI!: NON! I 2 ...... 10 IJI4-455A.DGN PRAIRIE ISLAND PlANT FIGURE 14.4-55A. REV. 31
1800 1000 I I I I I I I I 1 I I I I I I I I I I I I ----*---------------*--------- 1 I I I I I I I I I I I ' I ' I -----*--------------- 1 I I I 1 I I I I I I I I I I I I I I I I I I I I -----------*---------------*---------------*--------------- 1 I I I I I I I I I I I I I I I I I I I I --------------*---------------*---------------*--------------- 1 I I I I I I I I I I I I I I I I --------------*---------------*---------------*--------------- 1 I I I I I I I I I I I I I I I I I I *I I 800 ---------------*---------------*---------------*--------------- 1 I I I I I I I I I I I I I 0 3 6 9 Time (seconds) Figure 14.4-56 Hot Spot Cladding Inner Temperature vs. Time Locked Rotor I Shaft Break-RCS Pressure I PCT Case 12 Rev.27 DWNICJf a.o FILE I I I o I I : I : I I I I I I I I I I I I ------------*-

*-----------*-

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' I I I 1800 I I I I I I I I I I I I I I I I I I I I I I I I ---*------------*------------*----------*-*------------
I I I I I I I I I I I I I I t I I I I I I I I I I I l I t I I I I I I I I I I -------*------------*------------*------------*------------

I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I -----------*------------*------------*------------*------------

I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 4 I -----------*------------*------------+------------*------------
1 I j I . ' . ' I I I I I I I I I I I I I I t t I I I I I I I I I I I I 1 I I I -----------*------------*------------*------------*------------
I I I 800 I I I I I I I I I I I I I I I I I I I I I I I I I t I t I I I I 0 2 6 Time [seconds J a HOT SPOT CLADDING INNER TEMPERATURE vs. TIME LOCKED ROTOR /SHAFT BREAK -RCS PRESSURE /PCT CASE 10 USAR Section 14 Revision 31 NORIHERII STAlES P0Wa1 COIFANY flltlleiEneJvr SCAU!: NONE j 2-4-10 PRAIRIE ISLAND N1!9_1.?AA GENERATING PLANT lEl ""'-IIIHBllll FICIURE 14.4-56A REV. 31 U14456A.DGN
..-0 DWN: KJF CH ECKED: 1.2 ...---.. -0 c: *-1 E \ 0 c 4----0 0.8 c 0 +=J 0 0 0.6 ..._ 4----....__... L <L> 3; 04 0 o_ L 0 <L> 0.2 u ::J z: 0 0 20 40 60 Time (sec) 80 100 120 LOSS OF EXTERNAL ELECTRICAL LOAD WITH AUTOMATIC PRESSURE CONTROL-NUCLEAR POWER VERSUS TIME DATE: 2-19-14 NO RTHERN STATES POWER COMPANY S CALE: NON E I (l XcelEnergy-CAD U14457.DG N FIL E: PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-57 REO WING, MINNESO TA REV. 33 C\1 -.;t <0 <0 CD (W) ,... 0 OWN: KJF CHECKED: Vessel Vessel Outlet Temperature Inlet Temperature 620-------------------------------------------------. 600 l-j3 Q) E-5ao+ Q) 1--t--' c 0 0 0 (_) 1-0 -t--' u 0 Q) 0:::: 560 54Q 520 1-1-1-1-f::.------' 0 20 I I I I I I I /---I ------------------- I I I I 40 60 Time (sec) 80 100 120 LOSS OF EXTERNAL ELECTRICAL LOAD WITH AUTOMATIC PRESSURE VESSEL INLET AND OUTLET TEMPERATURES VERSUS TIME DATE: CAD F1LE: 2-19-14 U14458.DGN NORTHERN STATES POWER COMPANY (l SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-58 RED WING MINNESOTA N v <0 <0 co (i) ,.. 0 REV. 33 DW N: KJF C HE C KED: 2400 -..----... .2 2300 C/) -CL -....__... Q) ..._ :::::1 2200 C/) en Q) ..._ o._ ..._ Q) 2100 N *..._ ::J en UJ Q) -..._ 2000 o._ 1900 I I 0 20 40 60 Time (sec) 80 tOO 120 . LOSS OF EXTERNAL ELECTRICAL LOAD WITH AUTOMATIC PRESSURE CONTROL-PRESSURIZER PRESSURE VERSUS TIME DATE: 2-1 9-14 NORTHERN S TATE S POWER COMPANY SCA LE: NO NE I '(l Xcel Energy-CAD U14 459.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-59 FILE: RED 1'.1 NG, MI NN ESOTA REV. 33 N o;t <0 <0 co M ,.. 0 DWN: KJF C HE C KED: 650 600 -(J) E ::J 550 r-0 > !..... (!) -+--' 500 0 3 !..... (!) N 450 *;::: ::J en en (J) !..... 4{)0 o_ 350 I I I I I I I I I I I I I 0 20 40 60 Time (sec) 80 100 120 LOSS OF EXTERNAL ELECTRICAL LOAD WITH AUTOMATIC PRESSURE CONTROL-PRESSURIZER WATER VOLUME VERSUS TIME DATE: 2-19-14 NORTHERN STATES POWER COMPANY XceiEnergy-SCALE: NONE I CAD U14460.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-60 FILE: RED WING, MINNESOTA REV. 33 N 'lit <D <D co (W) ,.. 0 OWN: KJF CH EC KED: 1200 -.....--. 0 U) 11oo-CL ............. Q) .._ :::::! 1000 U) U) Q) .._ o__ .._ 900 0 -+--' 0 .._ Q) c aoo-Q) 0 E 0 7oo-Q) -+--' (f) 600 I I 0 20 40 60 Time (sec) 80 100 120 LOSS OF EXTERNAL ELECTRICAL LOAD WITH AUTOMATIC PRESSURE CONTROL -STEAM GENERATOR PRESSURE VERSUS TIME DATE: 2-19-14 NORTHERN S TATE S POWER COMPANY SCALE: NO NE I fl Xcel Energy-CAD U1446 l.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-61 REV. 33 FILE: RE D WI NG, MINN ESOTA C\1 o::t <0 <0 co (t) ,.. 0 4.5 4 3.5 0::: en 3 :z: 0 25 2 1 5 I l I I l 0 20 40 60 80 100 120 Time (sec) LOSS OF EXTERNAL ELECTRICAL LOAD WITH AUTOMATIC PRESSURE CONTROL-DNBR VERSUS TIME OWN: KJF DATE: 2-19-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(l XcelEnergy-CHECKED: CAD U144 6 2.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-62 FILE: RED WING , MINNESOTA REV. 33 C\1 'lit <D <D co (V) ,.. 0 DWN 1.2 .....---... -0 c *-1-\ E 0 c '+-0 o.a-c 0 *+.-(.) 0 0.6-I-'+-I-(J) 3: 04-0 ()_ 1-0 (J) 0.2-(.) ::I ::z: -0 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 0 20 40 60 80 100 Time (sec) LOSS OF EXTERNAL ELECTRICAL LOAD WITHOUT AUTOMATIC PRESSURE NUCLEAR POWER VERSUS TIME KJF DATE 2-20-14 NORTHERN STATES POWER COMPANY fl Xce!Energy-SCALE: NONE I 120 CHECKED CAD FILE UI4463.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-63 REV. 33 RED 1'11NG, MINNESOTA N v CD CD co ('I) ,.. 0 OWN Vessel Vessel Outlet Temperature Inlet Temperature r--600-1--------- ,. ...... __ -+-' c 0 I ------------------- 0 0 (_) r-56o-r-/ r--I r--I r--L I 2 540+ ,' u 1-0 <1.) 0::::: r-1 520 r-I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 0 20 40 60 Time (sec) 80 100 LOSS OF EXTERNAL ELECTRICAL LOAD WITHOUT AUTOMATIC PRESSURE VESSEL INLET AND OUTLET TEMPERATURES VERSUS TIME KJF DATE 2-20-14 NORTHERN STATES POWER COMPANY '(l Xcel Energy-SCA LE: NONE I 120 CHECKED CAD FILE Ul4464.DGN PRAIRIE ISLANDNUCLEAR GENERATING PLANT FIGURE 14.4-64 REV. 33 RED WING, MINNESOTA C\1 ""' <0 <0 co (W) ,.. 0 DWN 2800 f-f--r r f-r 27oo-r: f--r 0 r r 2600 i-r .....____.... r Q) r I.-r :J r (f) 2500 r-(f) r Q) r I.-r-o_ r r (/') 240o-r-u r 0:::: r r r r-2300 r-r r r r I I I I I I I I I I I I I I I 2200 0 20 40 60 80 100 120 Time (sec) LOSS OF EXTERNAL ELECTRICAL LOAD WITHOUT AUTOMATIC PRESSURE RCS PRESSURE VERSUS TIME KJF DATE 2-20--14 NORTHERN STATES POWER COMPANY '(! XceiEnergy SCALE: NONE I CHECKED CAD FILE Ul4465.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-65 REV. 33 RED 1'.1NG, MINNESOTA C\1 '¢ U) U) co ('t) ,... 0 DWN 520------------------------------------------

. soo--(]) -E 480-::::l -0 > !...... 46o--(]) --4-' a 3: !...... (]) N *c ::::l (f) (JJ o_ I I I I I I I I I I I I I I I I I I I I I I I I I I 20 40 60 Time (sec) 80 100 LOSS OF EXTERNAL ELECTRICAL LOAD WITHOUT AUTOMATIC PRESSURE PRESSURIZER WATER VOLUME VERSUS TIME KJF DATE 2-20-14 NORTHERN STATES POWER COMPANY '(), Xcel Energy SCALE: NONE I 120 CHECKED CAD FILE U14466.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-66 REV. 33 RED WING, MINNESOTA N ""' U) U) co (i) ,.. 0 DWN 1200 !-r--!-0 r-(/) 1100-!-0.... r-...._.....

!-(J) !-!...... !-::J 1000 !-(/) (/) r-(J) r-!...... r-(]_ r-!...... 900 !-0 !--+-' !-CJ !...... !-(J) !-c aoo-!-(J) c.? r-r-E r-0 !-(J) 700 1--+-' !-(f) !-!-600 r I 0 I I I I I I I I I I I I I I I I I I I I I I 20 40 60 Time (sec) 80 100 120 LOSS OF EXTERNAL ELECTRICAL LOAD WITHOUT AUTOMATIC PRESSURE STEAM GENERATOR PRESSURE VERSUS TIME KJF DATE 2-20-14 NORTHERN STATES POWER COMPANY (} Xce/ Energy-SCALE: NONE I CHECKED CAD FILE Ul4467.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-67 REV. 33 RED 'MNG, MINNESOTA C\1 o;t CD CD co M ,.. 0 1.2 ,.----.. -0 c *-E 1-0 c ....._ 0 o.a c 0 :.p (.) 0 0.6 lo-....._ lo-Q) $: 0.4 0 o_ lo-0 0.2 Q) (.) ::::::J :z:: 0 1 10 DWN KJF DATE CHECKED CAD FILE ' ' I I I I 2 3 10 10 Time (sec) LOSS OF NORMAL FEEDWATER -NUCLEAR POWER 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(!, Xcel Energy-U14468.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-68 RED v.lNG, MINNESOTA 4 10 REV. 33 C\1 '¢ <D <D co ('t) ,.. 0 Vessel Outlet Temperature

Vessel I n I e t Temperature

,..--..... 600 LL 0 '----"" 590 Q) "--::J -+--' 580 0 "--Q) E-57o-=" 5eo-I -+--' ,. c 0 5so-I 0 I 0 (_) I "--540 I 0 I -+--' (.) 530 / 0 -"' (I) --0::: -----520 I I I I I I I I I I I I 1 2 3 4 10 10 10 10 Time (sec) LOSS OF NORMAL FEEDWATER-REACTOR COOLANT TEMPERATURES OWN KJF DATE 2-20-14 NORTHERN STATE S POWER COMPANY SC ALE: NO NE I '(l Xcel Energy* C HECKED CAD U144 69.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-69 REV. 33 FILE RED \'.1 NG, MINN ESOTA N 'It U) U) co (t) ,.. 0 2400 .----... 0 2350 Q) 1...... :::J en en (]) 1...... 2300 Q_ 1...... Q) N *c: :::J en en 2250 Q) 1...... Q_ 2200 DWN KJF DATE CHECKED CAD FILE 1-1-1-r--1-r- 1-r-----J 1-r--1-1-1-1-I I I I I I II I I I I I I I I I I I I I I I I l_l 1 2 3 4 10 10 10 10 Time (sec) LOSS OF NORMAL FEEDWATER -PRESSURIZER PRESSURE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(}, Xcel Energy U14470.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-70 REV. 33 RED WING, MINNESOTA C\1 ...,. <D <D CX) ('I) ,.. 0 ....---... f') q:::: Q) E :::l 0 > L (1) -+-' 0 3 L Q) N *L :::l en {f) Q) L o_ DWN KJF CHECKED 1000 900 800 I 700 6oo-500 400 300 . 1 2 3 10 10 10 Time (sec) LOSS OF NORMAL FEEDWATER -PRESSURIZER WATER VOLUME DATE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(}, Xcel Enerw CAD Ul447l.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-71 FILE RED WING, MINN ES OTA 10 REV. 33 C\1 ""' U) U) co (I) ,.. 0 1200 r-..----... f-0 f-(I) f-Q_ 1100 f-.....___.. r-r-<1.) r-1.-::J (I) 1000-(I) <1.) 1.-Q_ 1.-goo-0 +-' 0 1.-<1.) c aoo-<1.) (_9 E 0 7oo-<1.) +-' (/) 600 I I I I I I I II I I I I I II LL 1 2 3 10 10 10 Time (sec) LOSS OF NORMAL FEEDWATER-STEAM GENERATOR PRESSURE DWN KJF DATE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I l} Xcel Energy-CHECKED CAD Ul4472.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-72 FILE RED WING, MINNESOTA 4 10 REV. 33 N """ <0 <0 co M ,.. 0 E ...Cl -.....___,._ U) U) 0 ::::2: L. 0 -+--' 0 L. Q) c Q) (.? E 0 Q) -+--' (/) DWN KJF C HE CKED :\ 120000 1-1 1-100000-1-1-t-t-1-t-4-00QQ-1-- 1-t-1-t-1- 1-1-0 1 2 3 10 10 10 Time (sec) LOSS OF NORMAL FEEDWATER-STEAM GENERATOR MASS D AT E 2-20-14 N OR THERN STATES POWER CO MPANY SCALE: NO NE I '(l Xce/ Ener gy-CA D U1 4473.D GN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-73 F IL E RED WING, MINNES OT A I 10 REV. 33 C\1 U) U) co (") ,.. 0 1.2 ,..-..... -0 c --E 1 t-0 t-c t-....___ 0 c 0.8 f-0 f-:..;::::; 0 0 0.6 f-!....... ....___ f-..__... f-!....... Q) :s: 04 f-0 (L !....... t-0 0.2 f-Q) u t-::I t-:z: 0 1 10 LOSS OF ALL AC DWN KJF DATE 2-20-14 CHECKED CAD U14474.DGN FILE 2 3 4 10 10 10 Time (sec) POWER TO THE STATION AUXILIARIES -NUCLEAR POWER NORTHERN STATES POWER COMPANY SCALE: NONE I '(l Xce/ Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-74 REV. 33 RED WING, MINNESOTA I N v co co en ('t) ,.. 0 <1.> 1.-:::I -+--' 0 1-<1.> CL E <1.> 1--+--' c 0 0 0 u 1-0 -+--' (.) 0 <1.> 0:::: DWN KJF CHECKED Vessel Vessel Outlet Temperature Inlet Temperature 600 580 560 r 540 520 1 10 DATE CAD FILE 1 I I I -------,---------------------- 2 10 Time (sec) I I . 3 10 { 10 LOSS OF ALL AC POWER TO THE STATION AUXILIARIES -REACTOR COOLANT TEMPERATURES 2-20--14 U14475.DGN NORTHERN STATES POWER COMPANY '(l Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED I'.ING , MINNESOTA SCALE: NONE I FIGURE 14.4-75 REV. 33 C\1 v U) U) co M ,... 0 2400 ,--.... 0 *g_ 2350------Q) 1-::::1 (f) (f) Q) r-1 1-2Joo-CL 1-Q) N *c: ::::1 (f) (f) 2250 CL 2200 I _I I 2 3 10 10 10 Time (sec) LOSS OF ALL AC POWER TO THE STATION AUXILIARIES -PRESSURIZER PRESSURE DWN KJF DATE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I fl Xcel Energy-CHECKED CAD U14476.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-76 FILE RED IMNG , MINNE S OTA 4 10 REV. 33 C\1 '¢ CD CD co ('I) ,.. 0 1000 ....-----.. goo-I<) q:: .___... (1) E aoo-:::l 1--0 1--> 1--!...... 7oo-(1) -+--' 0 3:: 6oo-!...... 1--(1) 1--N 1--*c
l (f) 1-(f) 1-(1) 1-!...... o_ 400 1-1-1--1--300 1 2 3 10 10 10 Time (sec) LOSS OF ALL AC POWER TO THE STATION AUXILIARIES
-PRESSURIZER WATER VOLUME DWN KJF DA TE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: N ON E I (}_, Xcel Energy* C HE CK ED CA D U144 77.D GN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-77 FILE RED WI NG, MI NNESOTA I 4 10 REV. 33 N o::t <0 <0 co (I) ,.. 0 .---...... 0 *-en 0.... ..._... (!) I-::::J en en (!) I-Q.. I-0 ..f-1 0 .._ (].) c (!) <...? E 0 (!) t) DWN KJF CHECKED 1200 r--1100 1000 r--f--900 f--r--800 r--r--r--f--700 f--f--f--f--f--r--I I I I I I I I I I I I I I I I II I I I I I I I I 600 1 2 3 4 10 10 10 10 Time (sec) LOSS OF ALL AC POWER TO THE STATION AUXILIARIES -STEAM GENERATOR PRESSURE DATE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(!, Xcel Energy-CAD U14478.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-78 REV. 33 FILE RED WING, MINNESOTA N "" <0 <0 (X) ,.. 0 .............. E ...0 .....___... en en 0 :::::2: L 0 -+-' 0 L (!) s::: (!) 0 E 0 Q.) -+-' (f) DWN KJF CHECKED 120000 I-I-I-I-100000 I-80000 I-I-60000 I-I-I-I-I-40000 I-I-I-I-20000 I I I I I II II I I I I I_LLU I I I I I I l_l I 2 3 4 10 10 10 10 Time (sec) LOSS OF ALL AC POWER TO THE STATION AUXILIARIES -STEAM GENERATOR MASS DATE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(l Xcel Energy-CAD U14479.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.4-79 REV. 33 FILE RED WING, MINNESOTA C\1 """ CD CD (X) M ,.. 0 2400 2200 2000 1800 t::l lSOO ...... (j) 0.... I 1400 UJ 0: 1200 (/) UJ a:: a. 1000 800 sao 400 200 0 OWN T. HILLER DATE 0 6-23-99 CI£CKED I U14601.0GN 50 BREAK FLOW 100 INJECTION FLOW 150 200 FLOW RATE -LBS. I SEC. 250 300 BREAK FLOW AFTER TRIP VS.2 S. I. PUMP INJECTION FLOW NORTHERN STATES POWER COMPANY PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED IlliG loi'INESOTA SCALE* NONE I FIGURE 14.&*1 REV. 18 ,----.... 0 c: *-E 0 c 4-0 c 0 +J 0 0 ..._ 4-..__.. ..._ (].) s:: 0 Q_ !....._ 0 (].) 0 :::l z:: DWN KJF CHECKED 1.4 / 1.2-1 0.8 0.6-04-0.2-\...-Q -t--'--1......_ 1_._1---'1'---t--1...._ 1_... 1_1'---"'-- 1-t-1_,1.___......__1_,__ l_._l---1!t--_l_"'--_l_-'---'_l_-_l_.___l_t--'_l_---'_l.____...__L"""--1 L DATE CAD FILE 0 10 20 30 40 Time (sec) STEAMLINE RUPTURE -FULL POWER CORE RESPONSE -NUCLEAR POWER VERSUS TIME 2-20-14 NORTHERN STATES POWER COMPANY '(l Xcel Energy-SCALE: NONE j 50 U14502.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-2 REV. 33 RED \\1NG, MINNESOTA C\1 o:::t <0 <0 CX) (W) ,... 0 1.4 ..----. 0 c 1.2 *-E 0 c 4--1 0 c 0 :.;::; 0.8 0 0 ..._ 4--.....__... X 0.6 :::::1 LL. 4-' 04 0 (J) :r: (J) 0.2 ..._ 0 (_) 0 0 DWN KJF DATE CHECKED CAD FILE / I I I I I I I I I I I I I I I I I I I 10 20 Time (sec) 30 40 STEAMLINE RUPTURE -FULL POWER CORE RESPONSE -CORE HEAT FLUX VERSUS TIME 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE 1 '(), Xce/ Energy-U14503.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA FIGURE 14.5-3 50 REV. 33 C\1 v <0 <0 co (W) ,.. 0 2300 r--. 0 2250 *en Q_ ---Q) ..._ ::J 2200 f-en en 1-Q) ..._ o._ 1-..._ Q) 2150 f-N *;::: 1-::J en en Q) ..._ 2100 f-o._ f-2050 0 OWN KJF DATE CHECKED CAD FILE I I I I I I I I I I I I I I I I I I I I I I I I 10 20 30 40 Time (sec) STEAMLINE RUPTURE -FULL POWER CORE RESPONSE -PRESSURIZER PRESSURE VERSUS TIME 2-20--14 NORTHERN STATES POWER COMPANY SCALE: NONE I (! Xce/Energy-Ul4504.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED 'MNG, MINNESOTA FIGURE 14.5-4 50 REV. 33 C\1 o::t CD CD (Q (W) 'I"" 0 340 1-...--... .., ........ 308 1-Cl) 1-E 1-:::::1 1-0 > 276 I.... Cl) ........ 0 3: I..... 244 Q) N *;:::: :::::1 en en Cl) 212 I.... 0.... 180 0 DWN KJF DATE CHECKED CAD FILE I I I I I I I I I I I I I I I I I I I I 10 20 Time (sec) 30 40 STEAMLINE RUPTURE -FULL POWER CORE RESPONSE -PRESSURIZER WATER VOLUME VERSUS TIME 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(}, XceiEnergy Ul4505.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA FIGURE 14.5-5 50 REV. 33 N v <D <D (X) (V) ,.. 0

530 ..--... LL 0 ....__...

525-(]) ..__ ::J +-' 0 ..__ 520 (]) 0.... E (]) I-+-' 515-(]) -c -(J) rn 510 rn (]) > 505 0 DWN KJF DATE CHECKED CAD FILE Fau I ted Loop Intact Loop l ' \ \ \ \. '\ \ \ \ \ ' '\ .... ' ' -' \ I I I 10 20 30 40 Time (sec) STEAMLINE RUPTURE -FULL POWER CORE RESPONSE -VESSEL INLET TEMPERATURE VERSUS TIME 2-20--14 NORTHERN STATES POWER COMPANY SCALE: NONE I f), Xcel Enerw Ul4506.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA FIGURE 14.5-6 50 REV. 33 C\1 v <D <D CX) (I) ,.. 0 Foul ted Loop -----Intact Loop BOO ,.---.... 0 1\ U) ' 3 750 ,... \ \ (I) \ 1..... ::J ' U) 700 f-' I U) (I) f-' I 1..... \ 0..... r-' I 1..... 650 f-..... -/ 0 ...... / -+-' 0 f-1..... (I) c 600 r-(I) r-0 r-f-E f-0 550 (I) +-' r-(./) r-500 r-I I I I I I I I I I I I I I I 0 10 20 30 40 Time (sec) STEAMLINE RUPTURE -FULL POWER CORE RESPONSE -STEAM GENERATOR PRESSURE VERSUS TIME DWN DATE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I KJF (l Xce/ Energy-CHECKED CAD U14507.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-7 FILE RED WlNG, MINNESOTA 50 REV. 33 C\1 '¢ co co CX) M ,.. 0 Foul ted Loop -----Intact Loop 1800 1-f-1-....--.... 1600 1-u 1-Q) 1-(/) f-' -......_ 1400 f-.._,-E f-I 1-....0 f-I ..___.. 1200 f-I 1-3:: f-I 0 I LL 1000 E 1-l, "' 1-0 800 1-Q) ......... (/) Q_ 600 1-0 f-f-0 f-__] 400-f-f-200 1-I I I I I I I I I I I I I I I 0 10 20 30 40 Time (sec) STEAMLINE RUPTURE -FULL POWER CORE RESPONSE -LOOP STEAM FLOW VERSUS TIME DWN DATE 2-20-14 NORTHERN STATES POWER COMPANY SCAlE: NONE I KJF f}, Xcel Energy CHECKED CAD Ul4508.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-8 FilE REO WING, MINNESOTA 50 REV. 33 C\1 v co co co M ,.. 0 DWN CHECKED t5 '* 0 ..._ 0.. z. c 0 (]) Q_ 0. 0 0 KJF -0.002 -0.004 -0.006 -0.008 -0.01 o I I I o I 0 I I I I I o I I I I I I I I I I I I I I I I I I I I

*-,-------------,-------------,-------------

1 * ' I I I I I I I I I o I t I I I I I I I I I I I I I I I I I ***-*****-*-*** --*-****----,----*****----'l---------*--- 1 I I o I I o I I * *
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... :**--*--*-- --, . r I I I I I ' I . . I I I I I I I I -0.012 -+--..--...--.....--.-+' -.... ......... DATE CAD FILE 0 0.1 0.2 Power (fraction) 0.3 0.4 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -DOPPLER-ONLY POWER DEFECT WITH STUCK RCCA 2-20-14 U14509.DGN NORTHERN STATES POWER COMPANY '{l Xcel Energy PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE I FIGURE 14.5-9 REV. 33 (\1 v CD CD tX) ,... 0 DWN KJF C HE C KED +-' c <ll 0 0 0 ,_ 0 0 <ll Q) 0::: 2000 1750 1500 1250 1000 750 500 250 o o I I I I I I I I I I I I I I I I I t I .... , .... -.... --....... -.... -,---.......... -.......... -r -........ -..... -... -.... I I t t I t I I I ' . t I o I **--**--r*---*-

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-...... --.. -..... ---. ---.... -... ' .... -... -. ---..... -.. '--.. --.-. -... -.. 0 o I I t I t I & I 0 & & I I I J I DATE CA D FILE 0 25 50 75 100 Sl Flow Rate (Ibm/sec) STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -SAFETY INJECTION FLOW VERSUS RCS PRESSURE 2-20-14 Ul4510.DGN NORTHERN STATES POWER CO MPANY '(l Xce/Energy PRAIRIE ISLAND NUCLEAR GENERATING PLANT RE D 1'11NG, MINNESO TA SCALE: NO NE I FIGURE 14.5-10 REV. 33 C\1 v <0 <0 tO (I) ,.. 0 DWN KJF CHECKED Foul ted Loop Intact Loop ...--... LL 500 e :::J b 450-.._ <I) CL E 400-<1.) 1-350 e <I) 3oo-<l.) en gJ 250 > \ \ \ \ \ \ -...... ..... _ -..... ..... --..... ..... ..... .... ...... ..... -..... ______ _ ------ DATE CAD FILE 0 100 200 300 Time (sec) 400 500 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -VESSEL AVERAGE TEMPERATURE VERSUS TIME 2-20-14 NORTHERN STATES POWER COMPANY '(}, Xcel Energy-SCALE: NONE I 600 U1451l.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-11 REV. 33 RED WING, MINNESOTA N v CD CD co (i) ,... 0 DWN KJF C HECKED 2500 --.... Cl 2000 ..__.... Q) .._ ::::::1 Ul Ul Q) .._ 1500 o_ .._ Q) N *c ::::::1 Ul Ul 1000 e o_ 500 I I I I I 0 100 200 30( Time sec) 400 500 600 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -PRESSURIZER PRESSURE VERSUS TIME DAT E 2-20-14 NORTHERN S TATES POWER COMPANY SCA LE: NONE I '(l Xcel Energy-CAD Ul4512.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-12 REV. 33 FIL E RE D WI NG, MI NN ESOTA N '¢ <0 <0 (X) (I') ,.. 0 300 ...____,. Q) E ::::l 200 0 > I-Q) -+-' 150 0 3 I-Q) N 100 *;:: ::::l UJ en Q) I-50 ()_ 0 0 DWN KJF DATE CHECKED CAD FILE f\_ I I 100 200 300 Time (sec) 400 500 600 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -PRESSURIZER WATER VOLUME VERSUS TIME 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(l Xce/ Energy-Ul4513.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA FIGURE 14.5-13 REV. 33 C\1 ""' <0 <0 co (I) ,.. 0 DWN CHECKED E 3so CL CL ..._.. 300 c 0 +' 0 ...;:::; 250 c (!) u § 200 (_) c 0 0 150 m -o g, 100 E (!) so E 0 1-(_) 0 -t-....__.......,,__'---fl---'-1-...__ ,..__'---fii___,_J___,_J_...__ ,......__ ---1t---"---'-'-...__ ---1t---"---'-'-...__ ,......._,, KJF DATE CAD FILE 0 100 200 300 Time (sec) 400 500 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -CORE AVERAGED BORON CONCENTRATION VERSUS TIME 2-20--14 NORTHERN STATES POWER COMPANY '(}_, Xcel Energy-SCALE: NONE I 600 U14514.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-14 REV. 33 RED'MNG, MINNESOTA N v co co CX) M ,.. 0 OWN KJF CHECKED 0 -3 DATE CAD FILE 0 100 200 300 Time (sec) 400 500 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -CORE REACTIVITY VERSUS TIME 2-20--14 NORTHERN STATES POWER COMPANY '(l Xcel Energy SCALE: NONE 600 U14515.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-15 REV. 33 RED WING, MINNE S OTA N 'lit <0 <0 CX) (") ,.. 0 ..---.. 0 c *-E 0 c 4-0 c 0 :.;:; u 0 '-4-...._... '-<1.) 3: 0 o__ '-0 <1.) u ::J :z:: OWN KJF CHECKED 0.25 02 015 0.1 t-0.5[-01 0 J 0 100 200 300 400 500 Time (sec) STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -NUCLEAR POWER VERSUS TIME DATE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I (l XceiEnergy-CAD Ul4516.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-16 FILE RED l'nNG, MINNESOTA 600 REV. 33 N "" <0 <0 co (W) ,.. 0 ..----.. 0 c: *-E 0 c 4--0 c 0 :.;::; 0 0 L. 4--...__.. X :::J '-'-_,_. 0 (].) :::c (].) L. 0 u DWN KJF CHECKED 0.25 02 015 0.1 0.5E-01 oN.' .. 0 100 200 300 Time (sec) 400 500 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -CORE HEAT FLUX VERSUS TIME DATE 2-20-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(l Xcel Energy-CAD U14517.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-17 FILE RED WING, MINNESOTA 600 REV. 33 N v CD CD co (W) ,.. 0 DWN CHECKED ,.--... Foul ted Loop Intact Loop 1200-r----------------------------., 0 *en 0.... 1000 ......__.... Q) :::::1 C/) C/) Q) '---o_ '---0 ......... 0 Q) c Q) 0 E 0 Q) ......... (f) KJF I 800 I 1.,.._ 600 ' ' ..... ---....... __ _ ---------------------400 200 I-DATE CAD FILE 0 100 200 300 Time (sec) 400 500 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -STEAM GENERATOR PRESSURE VERSUS TIME 2-20-14 NORTHERN STATES POWER COMPANY '(l, Xcel Energy-SCALE: NONE I 600 Ul4518.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-18 REV. 33 RED WING, MINNESOTA C\1 v co co co ('t) ,.. 0 .,----... <..> (!) en ..__..._ E ..0 .::::-(!) ....... 0 0:::: :;.:: 0 LL en en 0 :::2' (!) N N 0 z: ....... (!) :::;:::; :::l 0 (.!) (/} OWN KJF CHECKED 10000 r-r-r-8000 r-6ooo-1-r-2ooo-0 0 Fou I ted Loop Intact Loop j 100 200 300 400 500 Time {sec) STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -STEAM GENERATOR OUTLET NOZZLE MASS FLOW RATE VERSUS TIME DATE 2-20-14 NORTHERN STATES POWER COMPANY (l Xcel Energy SCALE: NONE I 600 CAD FILE Ul4519.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-19 REV. 33 RED W1NG, MINNESOTA C\1 '¢ U) U) CX) M ,... 0 DWN CHECKED 220000 ......--.. Faulted Loop Intact Loop ,---------------------------- E 200000 r-I r-I r-....0 c 0 -+--' c <1) > c -en en 0 <...? (f) +--' 0 f------KJF 180000 160000 140000 120000 100000 / r-I r-1-r-1-r-1-80000 -!-.1.--J.--'--l..-f---1--L-l..--'--f--'--'-.1.--J.-+-'-.1-...J.----'--t-.1-...J.----'--'-f--l----'--'--'---i DATE CAD FILE 0 100 200 309 Time 400 500 STEAMLINE RUPTURE -ZERO POWER CORE RESPONSE -TOTAL STEAM GENERATOR MASS INVENTORY VERSUS TIME 2-20-14 NO RTHERN STATES POWER COMPANY f), XceiEnergy-SCALE: NONE _I 600 U14520.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-20 REV. 33 RED WING, MINNESOTA (\1 'It CD CD co (") ,.. 0 ...--------... en (f) o__ ..____.. Q) L_ ::::::; (j) (f) Q) '--o_ DWN KJF CHECKED 40 30 20 10 0 100 200 300 400 500 Time (sec) UNIT 1 PEAK CONTAINMENT PRESSURE FROM A STEAMLINE BREAK DATE 2-20-14 CAD FILE U14523A.DGN NORTHERN STATES POWER COMPANY l}, Xcel Energy PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE FIGURE 14.5-23A REV. 33 (\1 '¢ <D <D c:o ('I) ,.. 0 .r---. c::Tl (f) o_ Q) ...___ ::> (f) (f) Q) ...___ Q_ OWN KJF CHECKED 40 30 20 10 0 DATE CAD FILE 100 200 300 400 500 Time (sec) UNIT 2 PEAK CONTAINMENT PRESSURE FROM A STEAMLINE BREAK 2-20-14 U14523B.DGN NORTHERN STATES POWER COMPANY (l XcelEnergy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED IMNG, MINNESOTA SCALE: NONE FIGURE 14.5-23B REV. 33 N v <0 <0 CX) Ci) ,.. 0 350 1-1-1-1--3oo-. . 1-......---... u_ 1-en 1-Q) 1---o 250-. . . . .. '----" <1) l...._ :=J -+-' 0 L_ 2oo-. . . . . . Q) CL E Q) f--150 . . . . .__ -100 I I I 0 UNIT 1 PEAK DWN KJF DATE 2-20-14 CHECKED CAD Ul4524A.DGN FILE . . . . . . . . . . . . . . .. . .. . . '-. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . .. . . . . . . . . . . 200 400 600 Time (sec) CONTAINMENT TEMPERATURE FROM A STEAM LINE BREAK NORTHERN STATES POWER COMPANY SCALE: NONE I (l Xcel Enerw PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-24A RED IMNG, MINNESOTA . . 800 REV. 33 N "" <0 <0 tO ,.. 0 Lt_ CYl Q) -o ....____.. Q) =:l -+-' 0 Q) Q_ E Q) 1--DWN 300 250-200 150-0 KJF 200 400 T ime (s ec) 600 UNIT 2 PEAK CONTAINMENT TEMPERATURE FROM A STEAMLINE BREAK DATE 2-20-14 NORTHERN S TATE S P OWER COMPANY '(l Xcel Energy-SCA LE: NONE I 800 CHECKED CAD F ILE U1 45 24B.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-24B REV. 33 RED l'.lN G, MI NNESOTA N o;t <0 <0 CX) (I) ,... 0 15 c: *e 0 :z: -0 c: 0 :.;::::; (.) 0 '-"'- 3 2 0 0 I -----------*-------------*-------------*-------------*---------*--- 1 * . I -----------*-------------*-------------*-------------*------------- I 0 I ----------- -*-------------*-------------*-------------*------------- lime {s) Figure 14.5-25 RCCA Ejection -BOC Full Power Reactor Power vs. Time 8 10 Rev. 27 5(XX) -.-----... ---------... -_-_-_-_-.. ...--3000 La--::J -e Q) 0.. E Q) ....... 2000 1000 I I I ' I Fuel MeltiDg-4900 "F ----------t-**---------:------------ --' , : ', : , . ' . I : ', : I * ' I I : ' : I : 1, I : : ', I : : ', ' ! --J---------*------------*--------,---*------------*---------- 1 : : '.J : I : : :', : I : : : ', : I t I """"' I ,* * ' ' f : . '
Fuel Average : ........ ...

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' ' I I I I I Time (s) Figure 14.5-26 RCCA Ejection -BOC Full Power Fuel and Clad Temperatures vs. Time Rev. 27 '"6 c: *e 0 :z -0 c: 0 :.;:; <.> 0 at: :J 10
10 D 10 _, 10 0 I I

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1 I I I I I I I I I I I I I I t I I ----------*------------*------------*------------*------------ 1 I I I
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1 I I I I I I I I I I I I I I I ------------*------------*------------ Time (s) Figure 14.5-27 RCCA Ejection -BOC Zero Power Reactor Power vs. Time 8 10 Rev.27 f! .a e Q) 0.. E Q) 5(0) ..... ' ' * ' ' ' Fuel Melting-4900 "'F ' ' ' . ' ' ' ' ' .. fuel Center Tempenture ' ' * * ' ' * * . ' .... r-----: . / I t ' ..... Fuel Average Temperature , : : ...... _ ., . . ... I I ........... I
I : : Clad Ayerage : ,----* Taapcaaluie , ,,., : ............
..,. : : , : ..........
....... : , I I -., I ,: : : .........
___ ... __ : : ,' : : *r-------: ......... I-2000 I I I ....... ., t - IUJO I I o * * * : : : : . . : : : . ' . . ' ' ' ' * * . . . ' . . -
. ' * * * * * * * * * * *

2 0 Time (s) Figure 14.5-28 RCCA Ejection -BOC Zero Power Fuel and Clad Temperatures vs. Time Rev.27 0 c: *e 0 :z -0 *c: 0 u e .....
25 2 15 0 * * * * * * * * * * * * * * -----------*------------*------------*------------*------------
*

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4 Tune (s) Figure 14.5-29 RCCA Ejection -EOC Full Power Reactor Power vs. Time 10 Rev.27 5000
.-..3000 lL. ........ 1000 I I I 1 * * : Fuel Melting -4800 Of: ' I I . I I I I Fuel Center ----------*------------*-----------
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Time (s) Figure 14.5-31 RCCA Ejection -EOC Zero Power Reactor Power vs. Time Rev.27 5000 11100 0 I I I I l I I * . . : : Fuel Melting-4800 op 0 I I I 0 I ' : Fuel Center * . ----*------*-------- 1 *
I .... , -:----...... : , I """' I : '-..!_. I I ... t I ..........
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: : .... __ I ', I I I : ... : : I * ... I I ! .... ...... : : : Clad Average

I Temperaaure

--------..:_ . . -I I I I I 1 I I : I I . .
. I . * -----------*------------*------------*------------*------------ 2 Time (s) Figure 14.5-32 RCCA Ejection -EOC Zero Power Fuel and Clad Temperatures vs. Time 10 Rev.27 4 --r-. . 0 . . c: . *-E . 0 . . c: J-. . . . . . . . . . . . . . . . . .... .. .... . . .. . . . . .. . '-. . . . . 0 . . . . . c: . . 0 . . . . :;::::; . . 0 . . . 2-. . . . . . . . . . . . . . ... . . . . . . . . . .. . . . . .. . . . . . . . '+--. . L... . . . (l,) . . 0 . a... . . . 1-. . . . . . . . . . . .. . . . . . . . . . . . . .... . .. . . . . L... 0 1-. (l,) 1-. 0 . ::::J r-. z . 1-I I I I I I I I . 0 ' * * '
0 1.25 2.5 3.75 5 Time (sec.) 6.25 7.5 8.75 10 RCCA EJECTION -BOC FULL POWER REACTOR POWER vs. TIME OWN: KJF DATE: 10-25-1 2 NORTH E RN S TATES POWER COMPANY SC ALE: NO NE I fl, Xcel Energy-C HECKED: CAD U14 53 3.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-33 REV. 31 FILE: RED WI NG, MINN ESOT A OWN: Fuel Fuel Clod fuel Center I i ne Average Average Melting Temperature f-. * *

1-. * * --5000 : .-: -: --400()-. .. . . . . . . .
.. . . . . . .. . . . . . . . . . . . . . . . . ........................ . u_ . . . . I . ....---...... . . ar f-/('" . -----. . . . . f-/ * * ............ -* * *
s 3000-.. "7 ************************
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f-/ . . . * ------* * . f-; * =-------* . ........ F" * --0 2000*-........................................................... -: .-. . L- <1.) r-,;"" " . . . a.. f-,.. . . * ---------.:___
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1--1000-*,C ..................*.......................................... f1' . . . . .
. F! . * * * . * . f-1-1 I I I I I I I I I I I I I I. I I I I I I KJF 0 1-25 2.5 3.75 5 6.25 J!j 8.75 Time (sec.) DATE: RCCA EJECTION -BOC FULL POWER FUEL AND CLAD TEMPERATURES vs. TIME FOR U0 2 FUEL CASE 10-25-12 NORTHERN STATES POWER COMPANY l} Xcel Energy-SCALE: NONE I 10 CHECKED: CAD FILE: U14534.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-34 REV. 31 RED WING, MINNESOTA (X) <D (X) (V) 0) ,... ,... 0 OWN: fuel fuel Clad fuel Centerline Average Average Me I t i n g Tempe r o t u r e 5000 :;;--v*-: : : -: -:-----. . . . . . . -40()0-....... : ....... : ....... : ....... : ....... : ....... : . . ... : ...... . LL--. . . . . .
I -. . . . . . . en -. ,.... ...... ---.-..... __ . . . . . Q) -/ --* .._ * *
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0 !-J I I I I I I I I 1_ l _l _I I I . I I I . I I I . I I I I I I I 0 1.25 2.5 3.75 5 6.25 7.5 8-75 10 Time {sec.) DATE: RCCA EJECTION -BOC .FULL POWER FUEL AND CLAD TEMPERATURES vs. TIME FOR GADOLINIA FUEL CASE 10-25-12 NORTHERN STATES POWER COMPANY '(}, Xcel Energy-SCALE: NONE I CHECKED: CAD FILE: U14535.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-35 REV. 31 REO WING , MINNESOTA (X) CD (X) (W) m ,.. ,.. 0 DWN: 3 10
,-.... 2 f= g 101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... ; ...... . . ............
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j :: : : : : : : : : : : : : *I : .. : . : : I : : .... : I : . : ... : I : .. : . : : ! .. : : : . : I I I I I I i I I I ! I I l : 1 I I i I I I ! I j I I I I I 0 1.25 2.5 l75 5 6.25 7!J 8.75 Time (sec.) KJF DATE: 10-25-12 RCCA EJECTION -BOC ZERO POWER REACTOR POWER vs. TIME NORTHERN STATES POWER COMPANY '(l Xcelfnergy-SCALE: NONE I I I I 10 CHECKED: CAD

U14536.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-36 REV. 31 FILE: REO WING MINNESOTA (X) (0 (X) (") 0) ... ,.. 0 DWN: fuel fuel Clod fuel Centerline Average Average Me I t i n g Temper o t u r e 5000 r-----r-. ---.-----f-. -..... . I r . en r-* : :---_ e 3000_r-_.. . . . v.--:.--:
.-: .: .-: :--: :-: :-. ..... :_* : ... : :_::_ ................. . f--*-E r-* -------2000-:. ' :::77 7 c.. r-, E r,' . . . . . . . 1000-f-J' ..... : ....... : ....... : ....... : ....... : ....... : ....... : ...... . KJF r-. . . . . . . F* . . . . . . . f-rill ***.*** *** *** 0 ' ' ' I I I I I I I I I I I 0 1-25 2.5 3-75 5 6.25 Time {sec.) 7.5 8.75 RCCA EJECTION -BOC ZERO POWER FUEL AND CLAD TEMPERATURES vs. TIME FOR U0 2 FUEL CASE DATE: 10-25-12 NORTHERN STATES POWER COMPANY (l SCALE: NONE I 10 CHECKED: CAD FILE: U14537.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-37 REV. 31 RED MINNESOTA CX) <0 CX) M m ,... ,... 0 DWN: Fuel Fuel Clod Fuel Center I ine Average Average t.4 e I t i n g Temp e r a t u r e ---;-:-400()-...*............................................*...*...*...... ._._ -. . . . . I . --. . Q) -* ...----:-----. ----* * *
0 '11\1\1\-* * * * * * * * ***********************
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E . . . . . . . Q) i-I * * * . . * . I--.* ............................................................ . J 0 lr-IL-.IIIL..-11'--1-_...._ I.L-I.L-1,-JIL.......II__.I'-T_.L..- 1-r-.L-1.._ I I I KJF 0 1-25 2.5 3.75 5 6.25 Time (sec.) 7.5 8.75 RCCA EJECTION -BOC ZERO POWER FUEL AND CLAD TEMPERATURES vs. TIME FOR GADOLINIA FUEL CASE DATE: 10-25-12 NORTHERN STATES POWER COMPANY (l Xcel Energy-SCALE: NONE I 10 CHECKED: CAD FILE: Ul4538.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-38 REV. 31 REO WING, MINNESOTA CX) <D CX) C? Q) ,.. ,.. 0 3 f---f--0 f-c: f-.E 2.5-. . . 0 c: '+-0 2-. c: 0 1::> 0 1-5-.. .._ '+--!-.._ f-Q) 3= 1-. . 0 1-a.. 1-.._ f-0 f-Q) o.s-.. . . . . . 0 f-::::J 1-:z: 1-f-1 I I I 0 ' 0 1.25 DWN: KJF DATE: 10-25-12 CHECKED: CAD U14539.DGN FILE: . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . .. .. . . .. .. .. . . . . . . . . . . .. . . . . . . . ...... . . . . . . . . . . . . . . . ....... . . . . . . . . . . . . . . . . .. . . . I I I I I I I '
2.5 3.75 5 Time (sec.) 6.25 7.5 8.75 10 RCCA EJECTION -EOC FULL POWER REACTOR POWER vs. TIME NORTHERN STATES POWER COMPANY SCALE: NONE I f} Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-39 REV. 31 AEO 1'11NG MINNESOTA co <D co M m ,.. ,.. 0 OWN KJF Fuel Centerline

*Fuel Averoga ---------Clod Average ---*fuel loleltln9 Temperature

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OWN: Fuel Centerline Fuel Average Clad' Average F u e I U e I t i n g Temper at u r e 5000 v:--: -: --r ---400(}-................................................ . ........... . l..L. r . . . . . . . I . . . . . . . Ol ,._ .;..------. . . .. . Q) -/* . ..__, * * * * .e.. JOOO* .. //. ................... ';"-. .,_. .... :..:..:. ........................... . -. . . . -. . . Q) _/ .._ .-.._ -. 5 ......, -.. ---e 2ooo* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * <1.) -* * * * * *
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i . -. 0-111 Ill ll_l Ill Ill 111.111 Ill I I f f 0 1.25 2.5 3.75 5 6.25 7.5 8.75 10 Time {sec.) DATE: RCCA EJECTION -EOC FULL POWER FUEL AND CLAD TEMPERATURES vs. TIME FOR GADOLINIA FUEL CASE 10-25-12 NORTHERN STATES POWER COMPANY '(}, Xcel Energy-SCALE: NONE I CHECKED: CAD FILE: U1454l.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-41 REV. 31 RED WING, MINNESOTA co co co M m ,.. ,.. 0 DWN: 3 10
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:-----:

................................. ........................ ............ -RCCA EJECTION -EOC ZERO POWER FUEL AND CLAD TEMPERATURES vs. TIME FOR GAOOLINIA FUEL CASE 2-4-10 USAR Section 14 Revision 31 U145<<.DGN FIGURE 14.5-44 REV. 31 00 (() 00 ('") Ol Q) L_ =:J UJ UJ RCS Intact SG R u p t u r e d S G 1-1-1-1-1-1-ct 1 ooo-

:-------------------------------

J \\ DWN: K.JF CHECKED: 1-1-soo-1-f-f-1-0 0 DATE: CAD FILE: I I I 5-14-14 U14545.DGN \ \ I I I I I I I I I I I I _l I I I \000 2000 3000 Time (s) Steam Generator Margin to Overfill Analysis RCS and Secondary Pressures NORTHERN STATES POWER COMPANY fJ JCcel Energy-SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-45 RED WING, MINNESOTA 4000 REV. 33 1'-o 0 "'it CD 0 "'it 'I"" 0 (f) E _o '------" Q) -+-' 0 0:::: 5 0 LL (f) (f) 0 :::::::2: DWN: KJF CHECKED: 50 40 JO 20 10 0 0 DATE: CAD FILE: 5-14-14 U14546.DGN 1000 2000 3000 Time ( s) Steam Generator Margin to Overfill Analysis Primary-to-Secondary Break Flow Rate 4000 NORTHERN STATES POWER COMPANY SCALE: NONE fJ XceiEnergy-1-----.L...-----1 PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-46 REV. 33 RED WING, MINNESOTA 1'-o 0 "'it CD 0 "'it 'I"" 0 Avoi I o b I e -----Intact SG ---------R u p t u r e d SG 6000 ,..----------------------------------5ooo-/ ---/ 1-,. / / / I-/ ,. / 1-/ / ; / / I-; / / 40oo-/ / / 1-/ / / / / I-/ .... n ; _,. I-; ----+-' ;-" ..... ---\ ---" ---'+--/ --' ..-'---------" 1-.... ..-' -------/ ..-'----..... I ()) 3ooo----' / E // :::::i -0 > DWN: K.JF CHECKED: 1-.r I-I-2ooo-I-1-1-I-1ooo-1-I-I-1-0 0 DATE: CAD FILE: I I I 5-14-14 U14547.DGN I I I I I I I I I I 1000 2000 3000 Time (s) Steam Generator Margin to Overfill Analysis Steam Generator Water Volumes I NORTHERN STATES POWER COMPANY fJ JCcel Energy-SCALE: NONE I I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-47 RED WING, MINNESOTA I 4000 REV. 33 1'-o 0 "'it CD 0 "'it 'I"" 0 DWN: K.JF CHECKED: -- 0 1 000 2000 3000 DATE: CAD FILE: 5-14-14 U14548.DGN Time (s) Steam Generator Margin to Overfill Analysis Pressurizer Level NORTHERN STATES POWER COMPANY fJ JCcel Energy-SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-48 RED WING. MINNESOTA 4000 REV. 33 (]_) L_ :::::i -+-' 0 L_ Q) CL E Q) I-DWN: K.JF CHECKED: 3oo-2oo-10o-1-1-1-1-r-1-1-r-1-I--Intact SG Cold Leg Outlet Temperature Intact SG Hot Leg Inlet Temperature '-----_ _,----.... ......... __ _ ,..,.,.. ---- __ __ 0 1 000 2000 3000 DATE: CAD FILE: 5-14-14 U14549.DGN Time ( s) Steam Generator Margin to Overfill Analysis Intact SG Inlet and Outlet Temperatures NORTHERN STATES POWER COMPANY fJ JCcel Energy-SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-49 RED WING, MINNESOTA 4000 REV. 33 1'-o 0 "'it CD 0 "'it 'I"" 0 Ruptured SG Co I d L e 9 Outlet Temperature

Rupture SG H o t L e 9 I n I e t Temperature

..-------..., LL "--/ Q) L... ::::J -+--' 0 L... Q) CL E Q) I-DWN: KJF CHECKED: 600 f-. --500 r-f-f-f-400 f-r-1-r-300 '-f--r-2oo-c.. r-'-1-100-----0 0 DATE: CAD FILE: I I 5-14-14 U14550.DGN I -...... ...... ...... ...... ---------- ...... "---...... \ -.--'"' --I I I I I I I I I I I ' 1000 2000 3000 Time (s) Steam Generator Margin to Overfill Analysis Ruptured SG Inlet and Outlet Temperatures NORTHERN STATES POWER COMPANY 1}, Xcel Energy SCALE: I I NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-50 REO WING, MINNESOTA I 4000 REV. 33 ""' 0 ""' <0 0 ""' ,.. 0 Ruptured SG -----I n t o c t SG 100 I 1-I I 1-l 1\ f-1\ 80 II I I '-I \ I \ .....--.... I I (!) I \ E I \ ...0 60-I \ -"-----"' \ I Q) \ 1\ ...,__, \ \ 0 1-\ I \ 0:::: I I \ 3: 1-I \ 0 LL I ' 40-I ) (!) I (!) 1-I 0 I l 2 1-I \ I \ 1-I \ \ 20-I \ I \ I -----I ' I I '--I I v-I I I I 0 0 1000 2000 3000 4000 Time (s) Steam Generator Margin to Overfill Analysis SG Steam Releases DWN: DATE: 5-14-14 NORTHERN STATES POWER COMPANY SCALE: NONE I KJF it Xcel Energy-CHECKED: CAD U1455l.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-51 FILE: REO WING, MINNESOTA REV. 33 ...... 0 ""' <0 0 ""' ,.. 0 100 f-so-60-------.. ..___..... c: 0 c:::L. (/) 40-20-0 0 ' OWN: KJF DATE: 5-14-14 CHECKED: CAD U14552.DGN FILE: 1000 2000 3000 4000 Time (s) Steam Generator Margin to Overfill Analysis Ruptured SG Narrow Range Level NORTHERN STATES POWER COMPANY SCALE: NONE I 1} Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.5-52 RED WING, MINNESOTA REV. 33 ('.. 0 ""' <D 0 ""' ,.. 0 OWN KJF CHECKED 14.00 1200 .............. LL ..___.. 1000 ::::::s -+-' 1-0 I-(].) 1-c.. E 800 (].) I-1-1-1-000 1-1-1-400 1-1-1-200 0 50 100 150 Time After Break (sec) PRAIRIE ISLAND UNIT 1 AND 2 CLAD TEMPERATURE TRANSIENT AT THE LIMITING ELEVATION FOR THE LIMITING PCT CASE DATE 2-20-14 NORTHERN STATES POWER COMPANY (l Xcel Energy-SCALE: NONE 1 200 CAD U1460l.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.6-1 REV. 33 FILE RED'MNG, MINNESOTA C\1 "" <0 <0 co ('t) ,.. 0 500QQ--r-----------------------, 40ooo-300QQ-_.....---.._ c;l) ....._ E _o ..__.. (I) ........, 0 200QQ-0::: 3: 0 LL-c;l) c;l) 0 ::::::2: 10ooo-'" o--1 0000 --1--'--1-'---l_.__--'--,---'---'--'---'----r---'---'---'----'-.--'--_.__--'---'----f 0 50 100 Time After Break (sec) 150 200 PRAIRIE ISLAND UNIT l & 2 VESSEL SIDE BREAK FLOW FOR THE LIMITING PCT TRANSIENT DWN KJF CHECKED DATE CAD FILE 2-20-14 U14602.DGN , NORTHERN STATES POWER COMPANY '() Xcel Energy SCALE: NONE I PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.6-2 REV. 33 RED v.lNG, MINNESOTA N '¢ U) U) co ('I) ,.. 0 DWN CHECKED 500 400 ...--Ul -............. 300 E ..0 ..__.. Q) en 0 0::: 3: 200 0 Lt._ 100 0 -1 00 0 5 10 15 20 Time After Break (sec) PRAIRIE ISLAND UNIT 1 AND 2 TOTAL FLOW AT THE BOTIOM OF THE CORE FOR THE LIMITING PCT TRANSIENT KJF DATE CAD FILE 2-24-14 U14603.DGN NORTHERN STATES POWER COMPANY (), Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE I FIGURE 14.6-3 REV. 33 N ""' co co c:o (I) ,.. 0 DWN KJF CHECKED ....--. 35oo-.------

.

3000 2500 I-f-1-f-2000 E ...0 -....__., Q.) cr> 0 1500 0:::: 3: 0 l.J_ (J1 (J1 0 1000 ::::2: sao-o-...____. __ 0 00 100 Time After Break (sec) 150 200 PRAIRIE ISLAND UNIT 1 AND 2 ACCUMULATOR INJECTION FLOW FOR THE LIMITING PCT TRANSIENT DATE CAD FILE 2-24-14 U14604.DGN NORTHERN STATES POWER COMPANY (l Xce/ Energy* PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED MINNESOTA SCALE: NONE I FIGURE 14.6-4 REV. 33 C\1 ""' CD CD co (i) ,.. 0 40 r--r-- r--r-30 r--...--.. r-en ....._ E r-...CI ..::::::::.- r-(I) CJ") 0 20 n::: 3:: 0 r-LL (I) r-(I) 0 r-r-10 r-r--r-r--0 I I I I I I I I I I I I I I I 0 50 100 Time After Break (sec) 150 200 PRAIRIE ISLAND UNIT l AND 2 HIGH-HEAD SAFETY INJECTION FLOW FOR THE LIMITING PCT TRANSIENT (NO LOOP) DWN KJF CHECKED DATE CAD FILE 2-24-14 U14605.DGN NORTHERN STATES POWER COMPANY (!, Xcel Energy PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE I FIGURE 14.6-5 REV. 33 N v CD CD co (I) ,.. 0

CIJ ...............

E ..CI ...___... (J) en 0 n::: 3: 0 lL__ CIJ en 0 :::::2: LOW-HEAD DWN KJF DATE CHECKED CAD FILE 250 f-f-f-f-..... 200 f-f-f-f-150 f-f-f-f-100 f-f-f-f-50 f-f-f-0 i i 0 50 100 Time After Break (sec) 150 PRAIRIE ISLAND UNIT 1 AND 2 SAFETY INJECTION FLOW FOR THE LIMITING PCT TRANSIENT (NO 2-24-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(}, Xcel Energy U14606.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED 'MNG, MINNESOTA FIGURE 14.6-6 200 LOOP) REV. 33 C\1 v co co co ('t) ,.. 0 DWN KJF CHECKED Intact Loop Intact Loop Broken Loop Broken Loop Down comer Down comer Down comer Downcomer Not Attached to a Cold Leg Attached to a Cold Leg Not Attached to a Cold Leg Attached to a Cold Leg I l 25 n IJ IJ II Ill, IIIII I I 220 f*' .____.... Q) ri I" > II Q) rt: --' :-2 In 5-15 ll :..:J rl' 1: -o Q) UJ CL 0 0 (__) 10 5 0 50 100 Time After Break {sec) 150 200 PRAIRIE ISLAND UNIT 1 AND 2 DOWNCOMER COLLAPSED LIQUID LEVELS FOR THE LIMITING PCT TRANSIENT {THE BOTIOM OF ACTIVE FUEL IS AT 5.8 FEET) DATE CAD FILE 2-24-14 Ul4607.DGN NORTHERN STATES POWER COMPANY 'fl Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE FIGURE 14.6-7 REV. 33 C\1 o::t co co co M ,.. 0 DWN KJF CHECKED <1) > <1) _j --s-6-4-\ c-c-c-2-\ r-c-r-0 I 0 50 100 Time After Break (sec) 150 200 PRAIRIE ISLAND UNIT 1 & 2 LOWER PLENUM COLLAPSED LIQUID LEVEL FOR THE LIMITING PCT TRANSIENT (THE BOTIOM OF ACTIVE FUEL IS AT 8.4 FEET) DATE 2-24-14 CAD U14608.DGN FILE NORTHERN STATES POWER COMPANY '(}, XceiEnergy PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE I FIGURE 14.6-8 REV. 33 C\1 ""' (0 (0 (X) (V) ,.. 0 DWN KJF CHECKED ---Low Power Channel Collapsed Liquid Level OH/SC/OP Average Channel Col lapsed Liquid Level Guide Tube Average Channel Col lapsed Liquid Level Hot Assembly Channel Cal lapsed Liquid Level <IJ > _.5 10 6-6 :..:::J --o <IJ en a... 0 0 u 4 2 0 50 100 150 Time After Break (sec) PRAIRIE ISLAND UNIT 1 & 2 CORE COLLAPSED LIQUID LEVELS FOR THE LIMITING PCT TRANSIENT (THE BOTIOM OF ACTIVE FUEL IS AT 0.0 FEET) (OH=OPEN HOLES, SC=SUPPORT COLUMN, OP=ORIFICE PLATE) DATE 2-24-14 NORTHERN STATES POWER COMPANY fl XceiEnergy-SCALE: NONE 200 CAD Ul4609.DGN FILE PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.6-9 RED WING, MINNESOTA REV. 33 N ""' <0 <0 co (W) ,.. 0 1200QQ.-----------------------, 100000-aoooo-........... E ...CJ ..::::::;... ooooo-en en 0 ::::2: 40000-20000-v 0 100 200 309 Time After Break tsec) 400 500 PRAIRIE ISLAND UNIT 1 AND 2 VESSEL LIQUID MASS FOR THE LIMITING PCT TRANSIENT DWN KJF DATE 2-24-14 CHECKED CAD U14610.DGN FILE NORTHERN STATES POWER COMPANY (}, Xce/Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE I FIGURE 14.6-10 REV. 33 N "" co co co (I') ,.. 0 2500 r--r-2000 ...--.. 1500 *w a_ r-.....___. r--(!) !.-::::! r--en en (!) r-!.-()_ 1000 r-r-r-r--500 r-r-r-r--0 I I 0 50 100 Time After Break (sec) 150 200 PRAIRIE ISLAND UNIT 1 AND 2 PRESSURIZER PRESSURE FOR THE LIMITING PCT TRANSIENT DWN KJF DATE 2-24-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(} Xcel Energy-CHECKED CAD U1461l.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.6-11 REV. 33 FILE RED WING, MINNESOTA N v CD CD CX) M ,.. 0 OWN KJF CHECKED c 0 :..;::::; 0 > Q) w 6 0 50 100 Time After Break (sec) 150 200 PRAIRIE ISLAND UNIT 1 AND 2 PEAK CLAD TEMPERATURE ELEVATION FOR THE LIMITING PCT TRANSIENT DATE 2-24-14 NORTHERN STATES POWER COMPANY SCALE: NONE l} Xcel Energy CAD U14612.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.6-12 FILE RED WING, MINNESOTA REV. 33 N '¢ <D <D (0 (") ,.. 0 OWN ICIF USAR Section 1-4. Revision 31 0.10 .------..... ------...... -----...... uo.2e1. o <<II ........... 1[0467,0.365] i 0.30 .----+--+-------+-----+---1 A. ' IIO 467. 0.19U 0.10 ..... -..... -....... -... -........ -....... """""1 ....... .... 0.20 0.30 OAO 0.10 PMID PRAIRIE ISLAND UNITS 1 AND 2 PaoriPMJoANALYSIS RANGE PBOT=INTEGRATED POWER FRACTION IN THE BOTIOM THIRD OF THE CORE PMID=INTEGRATED POWER FRACTION IN THE MIDDLE THIRD OF THE CORE uu.I13.DGN FIGUBE 14.6-13 .REv. 31 <Xl <0 <Xl (") 0> ..... ..... 0 DWN KJF USAR Section 14 Revision 31 35,-------------------------------------------------, Jo A 25 20 15 0 100 After Break (sec) 400 500 PRAIRIE ISLAND UNITS 1 AND 2 LOWER BOUND CONTAINMENT PRESSURE DATE CAD FILE 1-211-10 l1146U.DGN NORTHERN STAlES POWER COIII'ANY PRAIRIE ISLAND NUCLEAR GENERATING PLANT REDWN:l.t.INNESOTA SCALE: NONE l FIGURE 14.6-14 REV. 31 00 (.() 00 C') Ol .... 0
..... PCT vs. (CD *

PCT_DEO 0 A PCT_SPL 0 A) (All 124 Cases) 0 0 PCT DECCL 1**1 r] 0 0 PCT SPLIT deg r] 1wvv . . . 1-. . . . 1-. . . . . . . . .. A . 1eoo-. . . . . . . . . : . . .
...* . . . . : .
A.. . . . . . . : . . . . . . . . . : . . . . . . . . . A . . ....,. .A.. A . . . . .... . -:-.a; ... :,...: s 14Gir *.*.*.***
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... ... ... ........ . -: A. A . £4 "\,......_ " : -: : A : il 1200"" .... , .. ; .........
.........

... t-il_ (I: ........ . DWN CHECKED .. : : : ... .. . . . ... ... 1-..... : : : ...... : .... . 1000-............................................... . .... . . . .-. . 1-: : : *: 1-. . . . . . 1-. . . I I I I . I I I I . I I I . I
I I I I -0 . I 0.5 1 Ul 2 2.5 CD

Abreok/ACL PRAIRIE ISLAND UNIT 1 AND 2 PCT VERSUS EFFECTIVE BREAK AREA SCATIER PLOT (CD= DISCHARGE COEFFICIENT, ABREAK= BREAK AREA, ACL= COLD LEG AREA) KJF DATE 2-24-14 CAD U14615.DGN FILE NORTHERN STATES POWER COMPANY (l Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE I FIGURE 14.6-15 REV. 33 N o::t U) U) co M ,.. 0 OWN G.L.D CHECKED DATE CAD FILE CORE PRESSURE,CORE N FLOW,MIXTURE LEVEL 0 AND FUEL ROD POWER L T HISTORY 0 R c u T M O<TIME<CORE COVERED A p ,, -CODE INTERFACE DESCRIPTION FOR SMALL BREAK MODEL 6-23-99 NORTHERN STATES PRAIRIE ISLAND NUCLEAR GENERATING PLANT tEO WING MINNE:.OTA SCALE: NONE I FIGURE 14.7-1 REV. 18 DWN IUF QiEQ(B) 16 r 14 I 12 \ \ USAR Section 14 Revision 31 v \ v ______...
-"'-10 __. I \ ..... Q) 0 c.... ..... 8 0 I Q) .:= ::..:::i 6 4 1/ 2 I I 0 2 4 6 Elevation ( ft) 8 10 12 HOT ROD AXIAL POWER SHAPE DAlE 1-29-10 I NOR1lt81N STIITES POWER COM' ANY [SCALE: NON! I tlx.IS.W I FIGURE 14.7-2 REv. 31 CAD U14702.DGN I PRAIRIE ISLAND NUClEAR GENERATING PLANT FIUO IEl-ll..aoTA <Xl c.o <Xl ("') en ..-0 OWN KIF ------BROKEN LOOP FLOWRATE INTACT LOOP FLOWRATE USAR Section 14 Revision 31 "C1500 *a; CL ........... DATE CMJ Fn..E l-29-10 10 20 JO 40 Safety Injection Flowrate (lbm/s) 50 PUMPED HIGH HEAD SAFETY INJECTION FLOW RATE FAULTED LOOP SPILLING TO RCS PRESSURE NORTliEilN STAlES PllWBI COMPANY tl Xllela&w PRAIRIE ISLAND PLANT SCALE: NONE I FIGURE 14.7-3A. REV. 31 ..-0 OWN KJF OiECKED BROKEN LOOP FLOWRATE -----INTACT LOOP FLOWRATE 2500 2000 c:;-1500 "iii a.. ............ ::::l (I) (I) CD ..__ a... 1000 .... _L ... 500 ..... v ..... .... ..... ... .... .... ... ... \ 0 I ' 0 20 40 60 80 Safety Injection Flowrate (lbm/s) PUMPED HIGH HEAD SAFETY INJECTION FLOW RATE FAULTED LOOP SPILLING TO CONTAINMENT PRESSURE (0 psig) DATE 1--29-10 NORTHERN STAlES POWER CO .... ANY SCALE: JlileiEIJSI9Y' USAR Section 14 Revision 31 100 NONE I CAD PRAIRIE ISLAND PLANT FIGURE 14. 7-3B REV. 31 FILE 00 <.0 00 ("') CJ) 160 140 ..........__ 120 100 0 *a; c.. ...__,. Q) 80 ,_ :::s Cl) Cl) a... 60 40 20 0 I 0 PUMPED OWN ICJF DATE 1-29-10 01ECICED CAD FILE ........_ " ""' \ \ USAR Section 14 Revision 31 \ \ \ 50 100 150 200 Sofety Injection Flowrate (lbm/s) 250 RESIDUAL HEAT REMOVAL INJECTION FLOW RATE ONE PUMP, NO SPILUNG FLOWS NORlliEPii STAlES POWER COII'NIY SCAlf: NONE I tlx-reww PRAIRIE ISLAND PLANT FIGURE 14. 7*3C REV. 31 co <0 co (") a> .... .... 0 2500 2000 1-.....--0 1500 *en a... ...__, Q) L.. :::l en en e 1000 Q_ 1-1 1-500 1-1-f-f-0 I I 0 DWN KJF DATE 2-24-14 CHECKED CAD U14704.DGN FILE " t----.. I I 1000 2000 3000 Time {s) 4000 REACTOR COOLANT SYSTEM PRESSURE 3-INCH BREAK NORTHERN STATES POWER COMPANY '() Xce/Energy-PRAIRIE ISlAND NUCLEAR GENERATING PlANT RED V,NG, MINNESOTA 5000 SCALE: NONE _I FIGURE 14.7-4 I 6000 REV. 33 C\1 ""' CD CD co M 'I"" 0 DWN KJF CHECKED Core Mixture Level Top of Core (20.3269 ft) DATE CAD FILE 0 1000 2-24-14 U14705.DGN 2000 3000 Time (s) CORE MIXTURE LEVEL 3-INCH BREAK NORTHERN STATES POWER COMPANY '(} Xcel Energy-4000 PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED 1'.1NG, MINNESOTA 5000 6000 SCALE: NONE FIGURE 14.7-5 REV. 33 C\1 v <0 <0 tO ('t) ,.. 0 --... E ...0 -...__.... en en 0 OWN KJF CHECKED 3ooooo.------.,------.------.------.,------.------. 200000 f-f-150000 f-f-f-t-100000 t-t-DATE CAD FILE 0 2-24-14 U14706.DGN 1000 2000 3000 Time (s) 4000 TOTAL REACTOR COOLANT SYSTEM MASS 3-INCH BREAK NORTHERN STATES POWER COMPANY f) Xce/ Energy* PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED 'MNG, MINNESOTA 5000 6000 SCALE: NONE I FIGURE 14.7-6 REV. 33 (\1 v <D <D c:o ('t) ,.. 0 DWN KJF CHECKED r-1-r-550 : 500 450 400 DATE CAD FILE r-1-r-1-1-1-1-1-1-1-I I I I 0 2-24-14 Ul4707.DGN 1000 l'wl. I I I I I I I I I I I I I I I I I I I I 2000 3000 Time (s) 4000 TOP CORE EXIT VAPOR TEMPERATURE 3-INCH BREAK NORTHERN STATES POWER COMPANY '(l Xcel Energy-5000 SCALE: NONE I 6000 PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.7-7 REV. 33 RED'MNG, MINNESOTA C\1 '¢ CD CD co (i) ,.. 0 OWN CHECKED o.> .......... 0 a::: 3:: 0 LL.. en en 0 :::::2: KJF DATE CAD FILE 0 2-24-14 U14708.DGN 1000 2000 3000 Time (s) 4000 5000 VAPOR MASS FLOW RATE OUT TOP OF CORE 3-INCH BREAK NORTHERN STATES POWER COMPANY '(}., Xce/ Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE FIGURE 14.7-8 6000 REV. 33 C\1 o::t <0 <0 CX) M ,.. 0 TOTAL BREAK FLOW -----SAFETY INJECTION FLOW 2000 1500 ............... en -...... r-E ..0 ...__... <1.) -+-' 0 1000 0.::: 3: 0 I..J_ en en v 0 500 -I J 11111 IIIJuulll tliiHIIJJilliiJII

,a_ ,....----0 I I I I 0 1000 2000 3000 4000 5000 6000 Time (s) TOTAL BREAK FLOW AND SAFETY INJECTION FLOW 3-INCH BREAK DWN KJF DATE 2-24-14 NORTHERN STATES POWER COMPANY SCALE: NONE I '(}, Xce/ Energy CHECKED CAD Ul4709.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.7-9 REV. 33 FILE RED IMNG, MINNESOTA C\1 ""' CD CD (0 M ,.. 0 10000 .,.. -8000 'G:' I "' -+-' -.._ I "--...c ............

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I I 2000 3000 4000 Time (s) CLADDING TEMPERATURE AT PCT ELEVATION 2-INCH BREAK NORTHERN STATES POWER COMPANY (l Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED 1'.1NG, MINNESOTA I I 5000 SCALE: NONE I FIGURE 14.7-20 6000 REV. 33 C\1 '¢ <0 <0 co ro ,.. 0

...--.. ..__.. fJ) fJ) Q) c:: ....c:: 1-Q) -o *x: 0 OWN KJF CHECKED 0.1E-01-+-----+-----f-----+- ---___,l-----i 1-1-o.aE-02 r-r-1-0.6E-02 1-0.4E-02+----+-+-----+----+-----I-----I 0.2E-02+---+--t------t----+-----+-----; DATE CAD FILE 1000 2000 3000 4000 5000 6000 Time {s) LOCAL Zr0 2 THICKNESS AT MAXIMUM LOCAL Zr0 2'ELEVATION 2-INCH BREAK 2-24-14 U1472l.DGN NORTHERN STATES POWER COMPANY fl Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE I FIGURE 14.7-21 REV .. 33 C\1 'It co co co (I) ,.. 0 2500 2000 ...---.. 0 1500 *en a.. ....__... Q) 1..... :::J en en Q) 1..... 1000 CL 500 0 OWN KJF DATE CHECKED CAD FILE f-f-f-f-1-1--I 0 1000 2000 3000 Time {s) 4000 REACTOR COOLANT SYSTEM PRESSURE 4-INCH BREAK 2-24-14 NORTHERN STATES POWER COMPANY 'fl Xcel Energy-U14722.DGN PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA I I I I I 5000 SCA LE: NONE I FIGURE 14.7-22 6000 REV. 33 C\1 .q CD CD co (I) ,.. 0 ...--... -+-' '+-...___... <1.> > <1.> --' e ::I -+-' DWN KJF CHECKED Core Mixture Level Top of Core (20.3269 ft) 26 24 0 1000 2000 3000 Time (s) 4000 5000 6000 DATE CAD FILE 2-24-14 U14723.DGN CORE MIXTURE LEVEL 4-INCH BREAK NORTHERN STATES POWER COMPANY '(l Xcelfnergy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA SCALE: NONE FIGURE 14.7-23 REV. 33 C\1 ""' CD CD co M T'" 0 700 650 600 -G:' 550 ...__.... Q) lo..... ::l -+-' 500 a lo..... Q) 0.. E Q) I-450 400 350 300 OWN KJF DATE C HECKED CAD FILE -h :\ I f-\ '\. --r----..£ I I I I I I I I I I I I I I I I I I I I I I I 0 1000 2000 3000 Time (s) 4000 5000 6000 TOP CORE EXIT VAPOR TEMPERATURE 4-INCH BREAK 2-24-14 NORTHERN S TATE S POWER COMPANY SCAL E: NONE I (l XceiEnergy-Ul4 724.DG N PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.7-24 REV. 33 RED v.1NG. MINNE SO TA C\1 oqo CD CD co M ,.. 0 L2 ...__... Q) I-::::J -+-' e Q) 0.... E Q) I-DWN KJF CHECKED 550 500 450 400 350 DATE CAD FILE \ \ \ ' I 0 2-24-14 U14725.DGN ------v 1000 2000 3000 Time (s) 4000 CLADDING TEMPERATURE AT PCT ELEVATION 4-INCH BREAK 5000 NORTHERN STATES POWER COMPANY '(}, Xcel Enerw SCALE: NONE I .('.) 6000 PRAIRIE ISLAND NUCLEAR GENERATING PLANT FIGURE 14.7-25 REV. 33 REDI'<lNG, MINNESOTA C\1 o;t CD CD co (V) ,.. 0 '--"' Cf) Cf) Q) c ..::.::. .S2 ...c 1-Cl.) ""'0 *x 0 OWN KJF CHECKED Q.4E-04-r- ---.-----r----,----.-----r-----, 0.35E-04 ) o.3E-04 0.25E-04 0.2E-04 0.15E-04 ' ,... !--O.lE-04 !--,... 0.5E-05 0 -t--JLL! 1_...__,11 _ _,__ lt---'IL-..1.1_..__ II....._.._..__ IIL-J.I_....__ lt---'1 _ _,__ 1...__, 11'-t_...__, 11'---LI_....__ lt----'1_....__ Il--l DATE 0 1000 2000 3000 Time (s) 4000 5000 LOCAL Zr0 2 THICKNESS AT MAXIMUM LOCAL Zr0 2 ELEVATION 4-INCH BREAK (UNIT 1) 2-24-14 NORTHERN STATES POWER COMPANY '(), XceiEnergy-SCALE: NONE I 6000 FIGURE 14.7-26 REV. 33 PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA CAD FILE U14726.DGN C\1 o::t U) U) (X) (W) ,... 0 2500 r-2000 ....--0 1500 *cn CL -...__... Q.) '-:::::1 U) .(/) Q.) '-1000 o_ f-f-1-1-500 f-f-f-f-0 I I I 0 DWN KJF DATE 2-24-14 CHECKED CAD Ul4727.DGN FILE I I I I I I I I I 1000 2000 Time (s) REACTOR COOLANT SYSTEM PRESSURE 6-INCH BREAK (UNIT 1) NORTHERN STATES POWER COMPANY (l Xce/Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA I I I I 3000 SCALE: NONE I FIGURE 14.7-27 4000 REV. 33 C\1 "" <0 <0 (X) (I') ,... 0 DWN CHECKED Core Mixture Level Top of Core (20.3269 ft) ....--... -+-' Q) > .3 Q) I.... ::::::1 -+-' X :::::;;;: KJF 24 22 DATE CAD FILE 0 2-26-14 U14728.DGN 1000 2000 Time (s) CORE MIXTURE LEVEL 6-INCH BREAK NORTHERN STATES POWER COMPANY (! Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA 3000 4000 SCALE: NONE FIGURE 14.7-28 REV. 33 C\1 CD CD co (W) ,.... 0 DWN CHECKED 600;-----------+----------- +--------- --r---------_, .....-- KJF 3oo.!--------l--___:'::::£..=!========i===---l DATE CAD FILE 0 1000 2000 Time (s) 3000 TOP CORE EXIT VAPOR TEMPERATURE 6-INCH BREAI< 2-26-14 Ul4729.DGN NORTHERN STATES POWER COMPANY (}, Xce/ Energy* PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED 'MNG, MINNESOTA SCALE: NONE I FIGURE 14.7-29 4000 REV. 33 C\1 o::t CD CD co (W) ,... 0 ....--... .2 en 0... '--"' Q) L ::::J en (I) 0.... OWN KJF CHECKED 25oo-..-----------.,--------.------.,.---------. 2000 r-r-1500 1000 DATE CAD FILE 0 1000 2000 Time (s) 3000 REACTOR COOLANT SYSTEM PRESSURE 8-INCH BREAK 2-26-14 Ul4730.DGN NORTHERN STATES POWER COMPANY '(l Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED l'.lNG, MINNESOTA SCALE: NONE I FIGURE 14.7-30 4000 REV. 33 N v <D <D (0 (I) ,.. 0 OWN CHECKED Core Mixture Level Top of Core (20.3269 ft) 26 2 24 ...__.. Q) > .3 22 Q) I-::::l -+-' X 20 18 16 KJF DATE CAD FILE 0 2-26-14 U1473l.DGN 1000 2000 Time (s) CORE MIXTURE LEVEL 8-INCH BREAI< NORTHERN STATES POWER COMPANY '(l Xcel Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA 3000 4000 SCALE: NONE FIGURE 14.7-31 REV. 33 C\1 v co co co (t) ,.. 0 OWN CHECKED 700 r r r 600 500 Q) r I-:::J r .......... a r I-Q) 0.. r E 400 r r r \ f-300 r KJF DATE CAD FILE 0 1000 2000 Time (s) 3000 TOP CORE EXIT VAPOR TEMPERATURE 8-INCH BREAK 2-26-14 Ul4732.DGN NORTHERN STATES POWER COMPANY '(}, Xce/ Energy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED MINNE SO TA SCALE: NONE I FIGURE 14.7-32 4000 REV. 33 N '¢ CD CD co ('I) ,.. 0 .........--.. 0 *u; 0.. ..__... Q) "'-:::::::J en en Q) "'-0... OWN KJF CHECKED 25oo-.-----r-----....-----.-----r-----r------. t-2ooo+----t-----l-----t-----f----i-----l 1500 1000 DATE CAD FILE 1000 1500 Time {s) 2000 2500 REACTOR COOLANT SYSTEM PRESSURE 10.126-INCH BREAK 2-26-14 Ul4733.DGN NORTHERN STATES POWER COMPANY '(! Xcel Energy PRAIRIE ISLAND NUCLEAR GENERATING PLANT l'<lNG , MINNESOTA SCALE: NONE I FIGURE 14.7-33 3000 REV. 33 DWN KJF CHECKED Core Mixture Level Top of Core (20.3269 ft) DATE CAD FILE 0 2-26-14 U14734.DGN 500 1000 1500 Time (s) 2000 CORE MIXTURE LEVEL 10.126-INCH BREAK NORTHERN STATES POWER COMPANY '(}., Xcel Energy PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING, MINNESOTA 2500 3000 SCALE: NONE FIGURE 14.7-34 REV. 33 N ""' CD CD co (i) ,... 0 DWN CHECKED 7oo.-------.----- --.-------.-------.-

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I I I I I I I I I I I I I I I I I I f I I 1 I I I I I I I I I I I I I I I I I I t I 1 I I I I I 1 1 I I I 1 I t I I I I 1 I I I I I I I J I I I I 1 ----*-------*----*----*----*----*----*----*----*----*----
1 I I I I 1 I I I I I I I I I I I 1 I 1
----*----*----*----*----*----*----*----*----
' I I I I I I I I I I I I I I I I I I I I t I I I I I 1 ----*----*----*-, I I I I I I 1 I 1 : : 1 : : : : : I ;
I I I I I I l I I I I I I I 1 ----*----*----*----*----: I : : I : : : : I I I I I I I 1 1 *-*-*----*-*---*----*----*-----1 I I ' I I I I I 1 I I I. I I I I 1 I I 1 I I I I I I I t I I t ----*-*--*----*----*----*----*-
--*----*----+----+----*---- ' I I I I I I I I I I : : : : I ! I : : 14 . ' I I I I I I ---*----*----*-*--1 I I I I I I I I I I I I I I I I I I I I I I I I 1 o , I o I I I I I --** ----*----: : : I : : : : I I I I I I I I 1 o lA 1 I I ' I I I 1 1 1 I I I I I I J I I I 1 -- I I I I I f I I I I I I I I I I I I I 1 1 1 I I I I I I I I I I 1 I I I I I I I I I 4 I I I I I I I I I 1 1 1 I I I I I I I I I 1 1 --*-**---*----*----*----*----+----*----*----*----*----*---- ' I I I I I o I I I I I I I 1 () 200 -tOO Time (seconds) AMSAOOSS: UNCONTROLLED BORON DILUTION -DNBR VERSUS TIME USAR Section 14 Revision 31 2-08-10 SCALE: NONE I U14839.DGN FIGURE 14.8-39 REV. 31 T'"" 0 Figure 14.8-40 DELETED REV31 USAR Section 14 Revision 31 OWN T. MILLER CHECKED DATE CAD F t t z <t LL > U) a:l <t t a:: IJJ ..... .....1 -LL f 6-23-99 UI490!.0GN t t 1 f (") .....1 Cl cz ...... -IJJC N N > .....1 U) a:l <t -OFF-SITE DOSE ANALYSIS MODEL NORTHERN STATES POWER COMPANY PRAIRIE ISLAND NUCLEAR GENERATING PLANT RED WING t.41NNESOT A 0 z ([ ...J U) ..... w -a: ..... ([ a: a.. U) a: -0 U) LL.. >-...J ...J ([ w z 0 ([ 0 w U) :I: 0 0 0 ...J w LL.. 1-..... ...J U) ([ LL.. u LL.. ..... 0 1->-U) ...J -([ U) z ([ ([ al w 1-0 z SCALE: NONE FIGURE 14.9-1 REV. 18
2.0 1.5 w (/) 0 0 0 ..... 0 a:: >-:I: t-0 w 1.0 N ..... -' <I :::E a:: 0 z 0.5 0 0 0.25 0.50 0.75 1.00 PARTICIPATION FRACTION SENSITIVITY OF 2-HR THYROID DOSE TO ANNULUS VOLUME PARTICIPATION FRACTION G.L.D DATE 6-23-99 NORTHERN STATES POWER COMPANY SCALEr NONE L PRAIRIE ISLAND NUCLEAR GENERATING PLANT CHECI<ED CAD FIGURE 14.9*5 REV. 18 FILE Ul4905.DGN RED WINO HIN£&0TA Figure 14.10-1 has been DELETED. USAR Section 14 Revision 31 *}}

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