Text

Core Operating Limits Report: Unit 2 - Revision 9
	ML040060616
Person / Time
Site:	Palo Verde
Issue date:	12/23/2003
From:	Bauer S; Arizona Public Service Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	102-05024-SAB/TNW/JAP
	Download: ML040060616 (27)
	v • d • e

.

JL4~ Scott A. Bauer Department Leader Technical Specification 5.6.5.d Tel: 623/393-5978 Mail Station 7636 Regulatory Affairs Palo Verde Nuclear Fax: 623/393-5442 P.O. Box 52034 Generating Station e-mail: sbauer~apsc.com Phoenix, AZ 85072-2034 102-05024-SAB/TNW/JAP December 23, 2003 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Dear Sirs:

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 2 Docket No. STN 50-529 Core Operating Limits Report: Unit 2 - Revision 9 Pursuant to Technical Specification 5.6.5.d, enclosed is Revision 9 of the PVNGS Unit 2 Core Operating Limits Report (COLR), issued November 21, 2003.

No commitments are being made to the NRC by this letter. Should you have any questions, please contact Thomas N. Weber at (623) 393-5764.

Sincerely, SAB/TNW/JAP/kg Enclosure cc: B. S. Mallett NRC Region IV Regional Administrator M. B. Fields NRC NRR Project Manager N. L. Salgado NRC Senior Resident Inspector for PVNGS A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

Comanche Peak

Diablo Canyon

Palo Verde

South Texas Project

Wolf Creek

/ioD I

Enclosure Core Operating Limits Report for Palo Verde Nuclear Generating Station Unit 2 - Revision 9

Revision 9 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT CORE OPERATING LIMITS REPORT PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 2 Revision 9 I Responsible Engineer Digitally signed by: Wenzel, Richard Date R(Z99534) V Date: 10/30/2003 07:23:27 Reason: I am the auth6r of this document Location: PVNGS" Independent Reviewer Digitally signed by: Webb, James Date R(V97187) x Date: 10/30/2003 12:08:31 Reason: I have rev(ie~wed this document Location: PVNGS Responsible Section Leader Digitally signed by: Cannon, Thomas Date C(Z20485) ts Date: 10/30/2003 16:53:19 Reason: I am approving this document Location: PVNGS Page 1 of 25

Revision 9 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table of Contents Description Revision # Page Cover Page 9 1 Table of Contents 9 2 List of Figures 9 3 List of Tables 8 4 Affected Technical Specifications 8 5 Analytical Methods 9 6 9 7 CORE Operating Limits 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 9 8 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 9 8 3.1.4 Moderator Temperature Coefficient (MTC) 9 8 3.1.5 Control Element Assembly (CEA) Alignment 9 8 3.1.7 Regulating CEA Insertion Limits 9 8 3.1.8 Part Length CEA Insertion Limits 9 9 3.2.1 Linear Heat Rate (LHR) 9 9 3.2.3 Azimuthal Power Tilt (Tq) 9 9 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 9 9 3.2.5 Axial Shape Index (ASI) 9 10 3.3.12 Boron Dilution Alarm System (BDAS) 9 10 3.9.1 Boron Concentration 9 10 Page 2 of 25

Revision 9 PVNGS UNITI2 CORE OPERATING LIMITS REPORT List of Figures Description Revision # Page Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature 8 11 Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature 8 12 Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes I and 2 8 13 Figure 3.1.5-1 Core Power Limit After CEA Deviation 8 14 Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power 9 15 I (COLSS in Service)

Figure 3.1.7-2 CEA Insertion Limits Versus Thermal Power 9 16 l (COLSS Out of Service)

Figure 3.1.8-1 Part Length CEA Insertion Limits Versus Thermal Power 8 17 Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both 9 18 CEACs Inoperable In Any Operable CPC Channel Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core 9 19 Protection Calculators (COLSS Out of Service, CEAC(s)

Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core 9 20 Protection Calculators (COLSS Out of Service, Both CEACs Inoperable In Any Operable CPC Channel)

Page 3 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT List of Tables Description Revision # Page Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 8 21 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Kefi> 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron 8 22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.98 > Keff> 0.97 Table 3.3.12-3 Required Monitoring Frequencies for Backup Boron 8 23 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.97 > Keff> 0.96 Table 3.3.12-4 Required Monitoring Frequencies for Backup Boron 8 24 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.96 > Keff> 0.95 Table 3.3.12-5 Required Monitoring Frequencies for Backup Boron 8 25 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff < 0.95 Page 4 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT This Report has been prepared in accordance with the requirements of Technical Specification 5.6.5. The Core Operating Limits have been developed using the NRC approved methodologies specified in Section 5.6.5 b of the Palo Verde Unit 2 Technical Specifications.

AFFECTED PVNGS TECHNICAL SPECIFICATIONS 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Control Element Assembly (CEA) Alignment 3.1.7 Regulating CEA Insertion Limits 3.1.8 Part Length CEA Insertion Limits 3.2.1 Linear Heat Rate (LHR) 3.2.3 Azimuthal Power Tilt (Tq) 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 3.2.5 Axial Shape Index (ASI) 3.3.12 Boron Dilution Alarm System (BDAS) 3.9.1 Boron Concentration Page 5 of 25

Revision 9 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT ANALYTICAL METHODS The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC, specifically those described in the following documents:

Title Report No. Rev Date Supplement

1) CE Method for Control Element CENPD- N.A. January 1976 N.A.

Assembly Ejection Analysis 0190-A (1 3-N001-1301-01204-1) I

2) The ROCS and DIT Computer CENPD- N.A. April 1983 N.A.

Codes for Nuclear Design 266-P-A (13-N001-1900-01412-0) I

3) Modified Statistical Combination CEN- 01 -P-A May 1988 N.A.

of Uncertainties 356(V)-P-A (ARI) (April 1996)

(13-NO01-1303-01747-2) I

4) System 80TM Inlet Flow Distribu- Enclosure N.A. February 1993 I-P tion I -P to LD-(13-NOO1-1301-01228-0)82-054 I

5) Calculative Methods for the CE CENPD- N.A. March 2001 4-P-A Large Break LOCA Evaluation 132 Model for the Analysis of CE and W Designed NSSS (13-NOO1-1900-01391-0) I

6) Calculative Methods for the CE CENPD- N.A. April 1998 2-P-A Small Break LOCA Evaluation 137-P Model (1 3-NOOI-1900-01392-0) l

7) Fuel Rod Maximum Allowable CEN-372- N.A. May 1990 N.A.

Pressure P-A (1 3-NOOI-0201-00026-1) I

8) Arizona Public Service Company N.A. N.A. September 1999 N.A. I PWR Reactor Physics Methodology Using CASMO-4/SIMULATE-3 (NFM-002) I Page 6 of 25

Revision 9 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Title Report No. Rev Date Supplement

9) Technical Manual for the CENTS CE-NPD N.A. June 1993 I -P Code 282-P-A (13-N0OI-1303-02349-1 for Vol. I Vols. 1-3 13-NOO1-1303-02348-1 for Vol. 2 13-NOO1-1303-02376-1 for Vol. 3 13-NOO1-1303-02375-1 for Supple-ment I-P)

10) Implementation of ZIRLOTM CENPD- 0 November 2001 N.A.

Cladding Material in CE Nuclear 404-P-A Power Fuel Assembly Designs (1 3-NOOI-1900-01329-0) I Page 7 of 25

Revision 9 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT The cycle-specific operating limits for the specifications listed are presented below.

3.1.1 - Shutdown Margin (SDM) - Reactor Trip Breakers Open The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.1-1.

3.1.2 - Shutdown Margin (SDMh - Reactor Trip Breakers Closed The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.2-1.

3.1.4 - Moderator Temperature Coefficient (MTCQ The moderator temperature coefficient (MTC) shall be within the area of Acceptable Operation shown in Figure 3.1.4-1.

3.1.5 - Control Element Assembly (CEA) Alignment With one or more full-length or part-length CEAs misaligned from any other CEAs in its group by more than 6.6 inches, the minimum required MODES 1 and 2 core power reduction is specified in Figure 3.1.5-1.

3.1.7 - Regulating CEA Insertion Limits With COLSS IN SERVICE, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits1 shown in Figure 3.1.7-12; with COLSS OUT OF SERVICE, regulation CEA groups shall be limited to the withdrawal sequence and to the insertion limits1 shown in Figure 3.1.7-2.2 A reactor power cutback will cause either (Case 1) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with no sequential insertion of additional Regulating Groups (Groups 1, 2, 3, and 4) or (Case 2) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with all or part of the remaining Regulating Groups (Groups 1, 2, 3, and 4) being sequentially inserted. In either case, the Transient Insertion Limit and withdrawal sequence specified in the CORE OPERATING LIMITS REPORT can be exceeded for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months .

2 The Separation between Regulating Groups 4 and 5 may be reduced from the 90 inch value specified in Figures 3.1.7-1 and 3.1.7-2 provided that each of the following conditions are satisfied:

Page 8 of 25

Revision 9 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT a) Regulating Group 4 position is between 60 and 150 inches withdrawn.

b) Regulating Group 5 position is maintained at least 10 inches lower than Regulating Group 4 position.

c) Both Regulating Group 4 and Regulating Group 5 positions are maintained above the Transient Insertion Limit specified in Figure 3.1.7-1 (COLSS In Service) or Figure 3.1.7-2 (COLSS Out of Service).

3.1.8 - Part Length CEA Insertion Limits The part length CEA groups shall be limited to the insertion limits shown in Figure 3.1.8-1.

3.2.1 - Linear Heat Rate (LHR)

The linear heat rate limit of 13.1 kW/ft shall be maintained.

3.2.3 - Azimuthal Power Tilt (Tg)

The AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 5% with COLSS IN SERVICE when power is greater than 20%.

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

COLSS IN SERVICE and Both CEACs INOPERABLE in Any OPERABLE CPC Channel - Maintaining COLSS calculated core power less than or equal to COLSS calculated core power operation limit based on DNBR decreased by the allowance shown in Figure 3.2.4-1.

COLSS OUT OF SERVICE, CEAC(s) OPERABLE - Operating within the region of acceptable operation of Figure 3.2.4-2 using any operable CPC channel.

COLSS OUT OF SERVICE and Both CEACs INOPERABLE in Any OPERABLE CPC Channel - Operating within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel with both CEACs INOPERABLE.

Page 9 of 25

Revision 9 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT 3.2.5 - Axial Shape Index (ASI)

The core average AXIAL SHAPE INDEX (ASI) shall be maintained within the following limits:

COLSS OPERABLE

-0.18 <ASI< 0.18 forpower>50%

-0.28 < ASI < 0.18 for power < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 < ASI < 0.10 3.3.12 - Boron Dilution Alarm System (BDAS)

With one or both start-up channel high neutron flux alarms inoperable, the RCS boron concentration shall be determined at the applicable monitoring frequency specified in Tables 3.3.12-1 through 3.3.12-5.

3.9.1 - Boron Concentration The boron concentration of all filled portions ofthe Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration 2 3000 ppm.

Page 10 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN I . . . .. ..

6 5 I. . . . . . . . . . . . . . . .. . . . . . . . . . . . . . .

REGION OF ACCEPTABLE OPERATION.

z 4 _. . . . . . . . . . . . . . . . . . . . . . . ....................... ....................... .......................

a OEAiO w

sz3 3

2 . .. .......... ......... ...

(350,t.0) i .... I..

0 0 100 200 300 400 500 600 COLD LEG TEMPERATURE (-F)

Page 11 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED 7 .........

(500,6.5).

6.......... . ............ ......... ... .........

REGION OF ACCEPTABL.

5. OPERATION - . -.--.. .......

4. . *.. ................ . . .

z (350.4.0) z 1 . ...

RIEGION OF UNACCEPTABLE I DPE-RATIQN 0 .. . . ... ... . . . .i. . ... . ....... . . . . ... . .

0 100 200 300 400 500 600 COLD LEG TEMPERATURE (CF)

Page 12 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.4-1 MTC ACCEPTABLE OPERATION, MODES 1 AND 2 0.5

.(0%.0.55 0.0 _ , , , , *. * " *,, *,,, ~~~~~~~~~~~~...........'*'.! .

(50%,p.-0)

I.................

. ............ . ............ 00. %.(1.-0. i

-0.5 0.

-1.0

'i.

0

- -1.5 0 -ACCEPTABLE U

w -2.0

.~~~~~~~~~~~....OPE RATION ....... ....................

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.

-2.5 0

-3.0 ........... ............ ...... ... ....... P..ERA...... .......... ............. ....... .....

0

-3.5

-4.0

-4.5 0 10 20 30 40 50 .60 70 80 90 100 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

End of Cycle Limit Beginning of Cycle Limit ......

TECH SPEC 3.1.4 Maximum Upper Limit ........

Page 13 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.5-1 CORE POWER LIMIT AFTER CEA DEVIATION*

W r...i.........................

25 52S z 8 ~~~t6O MIN. 20.09,)

0 5 9- 20 .8 8 ;7. .. . .. ... .. .

,8 ....... ... ........

o1

- 8 8~~~~~.Ok o4r

-~~~~~~~......... .............

z W_-

,I:

Lu 0 8....................... ...

5t I- - - - - - -- - . .. . . . . . .

0 10 20 30 40 50 60 TIME AFTER DEVIATION. MINUTES

WHEN CORE POWER IS REDUCED TO 55% OF RATED THERMAL POWER PER THIS LIMIT CURVE, FURTHER REDUCTION IS NOT REQUIRED.

Page 14 of 25

. . I. : :j "'t - ,-.'

I PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 9 FIGURE 3.1.7-1 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS IN SERVICE) 1.0 0.9 (SEEFOO'NOTE IN SECTION 3.,1.7 ..-.-

FOR APPLICABILITY FOLLO WING A REACTOR CUTBACK) 0.8

'. . . ... ! .. .. . ..i. . .. .. . ..... .. ...

0.7 .

- -RP 4 POS _(1726SFRAC- PWR) +-25 . -

GRP 5 POS (172.5:x FRAC. PWR) - 64.5 2-F 0.6

-zj a 0

- ~~r 0.5 . . . ~ ~ ~.........~ ~~... .. ..... .. .. .. .. I....

0 z 0.4 0

VL. 0.3 i.

L............ . . :j ... i.... i..

. .... !............. i i .... . ...

0 :ut 0.2 _ ...---------- w------_---_

0.1 ........:.......

I I I I I 0.0 , . . . - . .

GROUP5 GROUP3 GROUPI r i i i I r I I T I I i j i j I I 150 120 90 60 30 0 150 120 90 60 30 0 150 120 90 60 30 0 GROUP4 GROUP2 150 I20 9+0 t 30 0 150 I20 90 60 3+0 0 CEA POSmON (INCHES WITHDRAWN)

Page 15 of 25

. -, l.. I - -- l ll 1 71 ` I I i . , , , ,-

I 1. I .

I PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 9 FIGURE 3.1.7-2 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE) 1.0 0.9 i... .7 .....

0.8 ...(SEE FOOTNOTEIN SECTION-3;- 7..

FOR APPIACABILITY FbLLOWVI N4G.

A~ REACTOR CiUTBAkCK 0.7 ,.. ..... _.

g. . , ~~~~~........., ..... ....

2 0.6 ...GRP-4.POS (-25~0.9*FRAC-PWR' *9 2--

, RP REA.C~P05~~..

A (2509..~bFRAC i............ ...... .........PWR ....... - 80.18 0oW 0.5 ...... .. ... . ... .........

~~~~ *~.. .. ...

0.4 cz 04:)LT 0.3 o Z Oon.

0.2 _ .:-__ - _- - _ _-

......-.. ... .. .. S 5...

0.1 0.0 GROUP5 GROUP 3 GROUP I I I I I I 1 1 1 1 i i ! ! i 150 120 90 60 30 0 150 120 90 60 30 0 150 120 90 60 30 0 GROUP4 GROUP2 150 Il 0b 9 6b 3+0 CEA POSITION (INCHES WITHDRAWN) t 150120 0 t slo 3b0 1 Page 16 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.8-1 PART LENGTH CEA INSERTION LIMITS VERSUS THERMAL POWER 10.0 . . : . : .

1 . . ..... ...... ...... .. .... ....... .. ..... .............. ....... .......

20.0 30.0 _.

40.0 - -------

z v 70.0 . ...... .

Z TRANSIENT INSERTION LIMIT (75.OINCHES o 8 . , . ... . . .

90.0 O OPERAiTION - . ...-.. O PERATION ----

u O 100.0 . NACCEPTABLE F RESTRICTED w 110.0 _. . j . - .

110.0 .............. .......... ....................... ........ .................................... ......u....

-- I - *~~~~~~~~~~wman. .......... I o**M* ... S*

wwl ..

LONG TERM STEADY STATE INSERTION.LIMITS (112.5 INCHESi 120.0 t ........-.

........ I-.-.-.. ............... ............. . .

. ~~~~~~~~~...

130.0 .. -

OPERATION ACCEPTABLE 140.0 ........ . . . ....

150.0 . .~1~ .1 .i .. L.. I .L.L.L.L I .L.L.. I .L . .L. ..~ . L . .aI. . ...a. I . I . .1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 FRACTION OF RATED THERMAL POWER Page 17 of 25

I PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 9 FIGURE 3.2.4-1 COLSS DNBR OPERATING LIMIT ALLOWANCE FOR BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL 25 ........................................

z 0 (20,95.0) 20 z

I.

15 0

10 UC CTO 0 Q 5

(0.0,750 0

0 25 50 75 100 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

Page 18 of 25

. . 4. :

I,

)" . ",

I I ,: , I I

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 9 FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC(s) OPERABLE) 2.5 ACCEITABLE 6PERATION ANY POWER LEVEL AT LEAST 1 CEAC OPERABLE IN EACH OPERABLE

................ ................ . ... CPC

.. .. C6ANNEL 2.4 (0.06,2.3 2.3 ..............-

(-.1,2.28)

C4 2.2 _ .............. ................. ..............-

ACCEPTABLE OPERATION z

Uz POWER AT OR ABOVE 90%

UD 'AT 1EASTCEAC OPERABLE IN ...............-

2.1 _............... .................

EACH OPERABLE CPC CHANNE 2.0 _ .............. ................. ........ . ...... ........ ..... . .i w. . . . '(0.1-,20(X

.(Q9i2:*0) y"..........

'0,0,00

.I1.93) 1, 1'." ;UNACCEPTABLE 1.9 _ .............. ..................

t ::i---OPERATION i I..............-

i LL.L LL ; LJLLLL

. - 2 _______ . I £... . . ....

. n

-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 19 of 25

I PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 9 FIGURE 3.2.4-3 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL) 3.6 ...... .

..... . .... .. r.... .. .. ... .. .. ... .. .. ... .. .. ... .. .. ..

ACCEPTABLE OPERATION ANY POWER LEVEL 3.5 _................................ BOTH CEACs iNOP.ERAiBLE ............... . ... .... .

IN ANY OPERABLE CPC CHANNEL 3.4 _................................ .... . O0.........

,341. .......- ..(Q.1,t3. 4. )..........4 U

3.3 _ .............. .................

1,3.27) u 3.2 _................ ................ ~~~~~~~~~... .. ..... . ................ ................. .............. +.......

UNACCEPTABLE OPERATION 3.1 _ .............. ................. I ........ .!LL...... ILLLL................. ................. ...............

.In I- - .... I., I I . ..

-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 20 of 25 1

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-1 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff> 0.98 OPERATIONAL Number of Operating Charging Pumps MODE 0 1 2 3 3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4 & 5 on SCS ONA. ONA ONA ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 21 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-2 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.98 2 Keff > 0.97 OPERATIONAL Number of Operating Charging Pumps MODE 0 1 2 3 3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 22 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-3 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.97 2 Keff> 0.96 OPERATIONAL Number of Operating Charging Pumps MODE 0 1 2 3 3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months I hour ONA ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 23 of 25

..II I.. j Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT

- Table 3.3.12-4 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.96 2 Keff> 0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0 1 2 3 3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 24 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Kcff

0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0 1 2 3 3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 4 & 5 on.SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months ONA 6 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 25 of 25

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