Text

Submittal of Revised Core Operating Limits Reports (Colrs)
	ML093290107
Person / Time
Site:	Palo Verde
Issue date:	11/17/2009
From:	Weber T; Arizona Public Service Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	102-06095-TNW/REB/CJS
	Download: ML093290107 (82)
	v • d • e

Technical Specification 5.6.5d Thomas N Weber Mail Station 7636 Palo Verde Nuclear Department Leader, Tel. 623-393-5764 PO Box 52034 Generating Station Regulatory Affairs Fax 623-393-5442 Phoenix, Arizona 85072-2034 102-06095-TNW/REB/CJS November 17, 2009 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Dear Sirs:

Subject:

Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2, and 3 Docket Nos. STN 50-528, 50-529, and 50-530 Revised Core Operating Limits Reports (COLRs), Units 1, 2 and 3 Pursuant to PVNGS Technical Specification, Section 5.6.5, enclosed are the revised Core Operating Limits Reports (COLRs). Unit 1 - Revision 20, Unit 2 - Revision 16, and Unit 3 - Revision 19, were made effective October 29, 2009. These revisions include changes resulting from License Amendment No. 174, dated August 26, 2009.

By copy of this letter and the enclosures, these COLR revisions are being provided to the NRC Region IV Administrator and the PVNGS Senior Resident Inspector. This letter does not make any commitments to the NRC. Should you need further information regarding this submittal, please contact Russell A. Stroud, Licensing Section Leader, at (623) 393-5111.

Sincerely, TNW/RAS/CJS/gat -PVNGS Unit 1 Core Operating Limits Report (COLR), Revision 20 -PVNGS Unit 2 Core Operating Limits Report (COLR), Revision 16 -PVNGS Unit 3 Core Operating Limits Report (COLR), Revision 19 cc: E. E. Collins Jr. NRC Region IV Regional Administrator J. R. Hall NRC NRR Project Manager R. I. Treadway NRC Senior Resident Inspector for PVNGS A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway " Comanche Peak " Diablo Canyon " Palo Verde " San Onofre " South Texas " Wolf Creek/( (

Enclosure 1 PVNGS Unit I Core Operating Limits Report (COLR)

Revision 20

PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 Effective October 29, 2009 Responsible Engineer Napier, C Digitally signed by Napier, 1 Joseph J(Z71881)

Date DN: cn=Napier, Joseph J Joseph J I(4I Z71881)

ýl Reason: I am the author of tf 86bZment

-this' (Z7188A)V.' Date 2009.10.27 16:17:19 n eDigitally signed by Bodnar, Independent Reviewer Bodnar,d1 Walter S(Z06432)

Date DN: cn=Bodnar, Walter DateW alter S (zo dnart6er2S W Reason: I have reviewed

-this document (Z06432ý ) Date: 2009.10.27 16:22:54 0-7'00o

". Digitally signed by Rowland,

= !

Responsible Section Leader Rowland James W(Zbyown,

" DN: n=Rowland, James W Date I /(Z80533)

James vv ./IýReason: am approving this document as temporary R*"Reioad-Anrlysis SL (Z8053

.. X Date: 20096"10.27 17:04:16

-0700' Page 1 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 Table of Contents Description Page Cover Page 1 Table of Contents 2 List of Figures 3 List of Tables 4 Affected Technical Specifications 5 Analytical Methods 6 CORE Operating Limits 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 8 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 8 3.1.4 Moderator Temperature Coefficient (MTC) 8 3.1.5 Control Element Assembly (CEA) Alignment 8 3.1.7 Regulating CEA Insertion Limits 8 3.1.8 Part Strength CEA Insertion Limits 9 3.2.1 Linear Heat Rate (LHR) 9 3.2.3 Azimuthal Power Tilt (Tq) 9 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 9 3.2.5 Axial Shape Index (ASI) 10 3.3.12 Boron Dilution Alarm System (BDAS) 10 3.9.1 Boron Concentration 10 Page 2 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 List of Figures Description Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature 11 Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature 12 Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes 1 and 2 13 Figure 3.1.5-1 Core Power Limit After CEA Deviation 14 Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power 15 (COLSS in Service)

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

Figure 3.1.8-1 Part Strength CEA Insertion Limits Versus Thermal Power 17 Figure 3.2.3-1 Azimuthal Power Tilt Versus Thermal Power 18 (COLSS in Service)

Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both 19 CEACs Inoperable In Any Operable CPC Channel Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core 20 Protection Calculators (COLSS Out of Service, CEAC(s)

Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core 21 Protection Calculators (COLSS Out of Service, Both CEACs Inoperable In Any Operable CPC Channel)

Page 3 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 List of Tables Description Page Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff> 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron 23 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 24 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 25 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 26 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff< 0.95 Page 4 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 1 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 Strength 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 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 ANALYTICAL METHODS The COLR contains the complete identification for each of the Technical Specification referenced topical reports (i.e., report number, title, revision, date, and any supplements) that provide the NRC-approved analytical methods used to determine the core operating limits, described in the following documents::

Title Report No. Rev Date Sump CE Method for Control Element Assembly CENPD- N.A. January N.A.

Ejection Analysis 0190-A 1976 (13-N001-1301-01204-1)

The ROCS and DIT Computer Codes for CENPD- N.A. April N.A.

Nuclear Design 266-P-A 1983 (13-N001-1900-01412-0)

Modified Statistical Combination of CEN- 01-P-A May N.A.

Uncertainties 356(V)-P-A 1988 (13-N001 -1303-01747-2)

System 8 0 TM Inlet Flow Distribution Enclosure N.A. February 1-P (13-N001 -1301-01228-0) 1-P to LD- 1993 82-054 Calculative Methods for the CE Large Break CENPD- N.A. March 4-P-A LOCA Evaluation Model for the Analysis of CE 132 2001 and W Designed NSSS (13-NOO1- 1900-01192-3)

Calculative Methods for the CE Small Break CENPD- N.A. April 2-P-A LOCA Evaluation Model 137-P 1998 (13-NOO - 1900-01185-3)

Fuel Rod Maximum Allowable Pressure CEN-372- N.A. May N.A.

(13-NOO 1-0201-00026-1) P-A 1990 Arizona Public Service Company PWR Reactor NFM-005 N.A. January N.A.

Physics Methodology Using 2006 CASMO-4/SIMULATE-3 (NFM-005)

Technical Description Manual for the CENTS CE-NPD 2 March N.A.

CodeVolume 1 282-P-A 2005 (CENTS-TD MANUAL-VOL 1) Vols. 1 Technical Description Manual for the CENTS CE-NPD 2 March N.A.

Code Volume 2 282-P-A 2005 (CENTS-TD MANUAL-VOL 2) Vols. 2 Page 6 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 Title Report No. Rev Date Suppi Technical Description Manual for the CENTS CE-NPD 2 March N.A.

CodeVolume 3 282-P-A 2005 (CENTS-TD MANUAL-VOL 3) Vols. 3 Implementation of ZIRLOTM Cladding Material CENPD- 0 November N.A.

in CE Nuclear Power Fuel Assembly Designs 404-P-A 2001 (13-NOO1 -1900-01329-0)

HERMITE, A Multi-Dimensional Space-Time CENPD- July Kinetics Code for PWR Transients 188-A 1976 (HERMITE-TOPICAL)

TORC Code, A Computer Code for Determin- CENPD- April ing the Thermal Margin of a Reactor Core 161-P-A 1986 (NOO1-1301-01202)

CETOP-D Code Structures and Modeling Meth- CEN- September ods for San Onofre Nuclear Generating Station 160(S)-P 1981 Units 2 and 3, (NOO1-1301-01185)

CPC Methodology Changes for the CPC CEN-3 10- 0 April Improvement Program, (N001-1303-02283) P-A 1986 Loss of Flow, C-E Methods for Loss of Flow CENPD- 0 June Analysis, (NOO1-1301-01203) 183-A 1984 Methodology for Core Designs Containing CENPD- 0 August Erbium Burnable Absorbers 382-P-A 1993 (NOO1-0201-00035)

Verification of the Acceptability of a 1-Pin Bur- CEN-386- 0 August nup Limit of 60 MWD/kgU for Combustion P-A 1992 Engineering 16 x 16 PWR Fuel (NOO 1-0201-00042)

Page 7 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 (SDM) - 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 (MTC)

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-strength or part-strength 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. The required power reduction is based on the initial power before reducing power.

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, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limitsi shown in Figure 3.1.7-2.2 Regulating Groups 1 and 2 CEAs shall be maintained fully withdrawn 3 while in Modes 1 and 2 (except while performing SR 3.1.5.3).

1 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:

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 Page 8 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 Fully withdrawn - >147.75" (Pulse Counter indication) and >145.25" (RSPT indication) 3.1.8 - Part Strength CEA Insertion Limits The part strength 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 (Tq)

The AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 10% with COLSS IN SERVICE when power is greater than 20% and less than or equal to 50%. Additionally, the AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 5% with COLSS IN SERVICE when power is greater than 50%. See Figure 3.2.3-1.

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

COLSS IN SERVICE and Both CEACs INOPERABLE in Any OPERABLE CPC Channel - Maintain 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 and CEAC(s) OPERABLE - Operate 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 - Operate within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel with both CEACs INOPERABLE.

Page 9 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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

0.17 for power > 50%

-0.28 < ASI < 0.17 for power >20% and < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 < ASI < 0.10 for power >20%

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 of the Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration _Ž3000 ppm.

Page 10 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN 7 . ......... ... .. .... ......... (50050) 5 ....................------.-- ................--........................ --- --...... ...................... . .......

REGION OF ACCEPTABLE OPERATION z

z Z*3 -- --- --. . . .......

REGION !OF UNACCEPTABLE OPERATION 0

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

Page 11 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 I

FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED 7 ......... ......... I (500,6.5)i 6

REGION OF ACCEPTABLE 5 ............... OPERATION--:-

. 4 (350,4.0) z 03 REGION OF UNACCEPTABLE 2 .................. -

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

OPERATION 0 +/- . .l l .l . .l .ll l l .m .ll l l ..

. l .l l .

. .. l ll..

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

Page 12 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 FIGURE 3.1.4-1 MTC ACCEPTABLE OPERATION, MODES I AND 2 0.5

' mI . . . .. I.--

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

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

."!........ i..... (50%,0.0)

(100%,-0.2 o

-1.0 .........-

U z

-1.5 ............ .......................... -CAREA OF ..................................................

W 0.

<- ACCEPTABLE 0

-2.0 *:OPERATION F-0

. --. ----------............... I'............. ---.............I............ ..I..........................................

0 -2.5

-3.0 .. . . . .. .. . .. .. . .. .. . . . .. . .. -. - . -

-3.5

-4.0 4...........

.. . . i..

-- . . i..

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

. .i... -- . .---- ------ --. .- -

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

(% OF RATED THERMAL POWER)

Maintain Operation within Boundary TECH SPEC 3.1.4 Maximum Upper Limit .......

Page 13 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT 1tevision 20 FIGURE 3.1.5-1 CORE POWER REDUCTION AFTER CEA DEVIATION* ASt 20 16 5100% to

>80% RTP 15 15 z

12 12 :580% to

>70% RTP I 0 10 10 8 8 -70% to

>45% RTP 5 5

-<45%RTP

-i 0

i 0 10 20 30 40 50 60 TIME AFTER DEVIATION, MINUTES

WHEN CORE POWER IS REDUCED TO 35% OF RATED THERMAL POWER PER THIS LIMIT CURVE, FURTHER REDUCTION IS NOT I

REQUIRED.

Page 14 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 FIGURE 3.1.7-1 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS IN SERVICE) 1.0 0.9 - -(SEE FOOTNOTE IN SECTION 31.;7.......-.-

FOR APPLICABILITY FOLLOWING 0.8 -

0.7 -GRP 4-POS-= (-12-.5-xFRAC.PWR)-+-25-5--

GRP 5 POS = (172.5:'x FRAC. PWR) - 64.5 0.6 0!

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

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

05 Uz.

0T.

0 L 0.3 0.2 I 0.1 -

O0 GROUP5 GROUP3 GROUP I I I I I I I I I I I I I I I I I I I FW* 120 90 60 30 0 FW* 120 90 60 30 0 FW* 120 90 60 30 0 GROUP 4 GROUP 2 F)ýC* 1 P0OTI 34o FIN 1C0 6W0 31DRW CEA POSITION (INCHES WITHDRAWN)

Fully Withdrawn (FW) is defined as > 147.75" (Pulse Counter) and > 145.25" (RSPT).

Page 15 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 FIGURE 3.1.7-2 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE) 1.0

.. .........iI-------- ....!-- ......

..- -- ------ ---- .i. . . . ....*

J . . .i. .....

0.9 1 0.8 .............

-......... .(SEE FOOTNOTE-iN SEC-TION-3;[;7.........7 FOR APPIACABILITY FOLLOWING A: REACTOR CUTBACK) 0.7 0

0.6 ------ - ----GRP-4POS-=(-250.9-X-FRAC.-PWR" +-9.82---

GRP 'PWOS = (250.9 i FRAC. PWR)- 80.18 05

. .... ....i..... ... -- . . .

zz z 0.4 0

U 0.3

...z,......... ---

£ ,

0.2

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

0.1

('n

'J, GROUP5 GROUP3 GROUP I I I I I I I I I I I I- I I I I I I I FW* 120 90 60 30 0OFW* 120 90 60 30 0 FW* 120 90 60 30 0 GROUP 4 GROUP 2 F X%*

10 0 3 g Ft It L0O 6+0 t CEA POSITION (INCHES WITHDRAWN)

Fully Withdrawn (FW) is defined as > 147.75" (Pulse Counter) and > 145.25" (RSPT).

Page 16 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 FIGURE 3.1.8-1 PART STRENGTH CEA INSERTION LIMITS VERSUS THERMAL POWER 0.0 10.0 - ----------- --------- ..................... ----- -- ---- ...........................

20.0 . ........... ........... ----------- .......... --------------------- --------

30.0 . ...................... ---------------- ............. .............................

40.0 . ........... ---------- ............. ------------- --------

z 50.0 - ----------- ---------- ............. ------------- ............. ........

60.0 . ........... ...... ............. .............

0Z 70.0 .......................

!TRANSIENT INSERTION LIMIT (75.0:INCHES) u) I I I I F-

,.n 80.0 zz OT..........I

............. --- IO ............

r- 90.0 ......... OPERATION ..................

UNACCEPTABLE RESTRICTED 100.0 L-- . --

110.0

..............i...... ------- I------------

.6 ...

120.0 LONG TERM STEADY STATE INSERTION:LIMITSI (112.5 INCHES) 130.0 OPERATION ACCEPTABLE 140.0

. . . . I ....- . -.I . . .-.. I I-.. - ..-. J 1.- . . ..- -.. I ... . I . . . .

150.0 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 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 FIGURE 3.2.3-1 AZIMUTHAL POWER TILT VERSUS THERMAL POWER (COLSS IN SERVICE) 20.0 15.0 -- -- - -RE G I O N OF --------------

UNACCEPTABLE OPERATION F-0 10.0 .. . .. .. . . . . . . . . .. . . . . . . . . .. .. . .. .. . . . . . . . . . . . . . . . . .... .. . . . .. . . . . . . . .. . . .. . .. .. . .. . ..-

z-5.0 REGION OF WLCEPTABLE OPERATION 0.u -

20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

Page 18 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 FIGURE 3.2.4-1 COLSS DNBR OPERATING LIMIT ALLOWANCE FOR BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL 25 0

20 ...... ----------

/...

15 I- ....................

E0 101- ....................

5 ....................

(80,5)

(70,0):

11 Illlllll 0 I I I 50 60 70 80 90 100 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

Page 19 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC(s) OPERABLE) 2.5 .. ....... !......... I , ,° , ,o., ,,l.. . .l,, . ... l... ... ... . ... .. ..

ACCEPTABLE OPERATION ANY POWER LEVEL AT LEAST 1 CEAC OPERABLE IN EACH OPERABLE CPC CHANNEL 2.4 (0,06,2.38) (0.1,2.3 8):

...i ...... ........

2.3

(-0.1,2.28) z 2.2 ACCEPT~ABLE OPERATION POWER AT OR ABOVE 90%

0 AT LEAST 1 CEAC OPERABLE IN 2.1 ....EACH OPER-ABILE-CPC CHtANNELA'-...... ----------------..

(0.05,2.00)

.......... (... 1193)............ ................. I................. ............. * ' ........ "*0. 12 .01 2.0 UNACCEPTABLE

......... ............. OP E RAT ION ....................................

1.9

. . . . . . . .. I . . . . . . .. . I .. . . . . . . I .. . . . . . . . ! . . . .

1.8 i fl i i i fl i 1I i

i i ..... II i iI .. . . . I l iI

-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 20 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 IIgDHllll Illl l' 'r ' ' . , ., i ACCEPTABLE :OPERATION ANY POWER LEVEL BOTH CEACs INOPERABLE 3.5 I

... . ...--- -- --- -- -- -- ----- ---B:E................. ........

IN ANY OPERABLE CPC CHANNEL

( 1,3.4 1) 3.4 - --------------- : .........

z 3.3 - --------------- .........

u (-0.i.3.27)

C..)

3.2 P--

UNACCEPTABLE OPERATION 3.1 - --------------

m .. .. .. .... .. .. .. .. I .

. . . . . .. .. 1 . I .. . . . . . . . I .. . .

3.0 .. . . .

. .. 1 .. .. . .

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

-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 21 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 22 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 Ž 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 23 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 Ž 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ONA ONA Notes: SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 24 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 > 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 25 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 20 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 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 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 26 of 26

Enclosure 2 PVNGS Unit 2 Core Operating Limits Report (COLR)

Revision 16

O'Connor, ,

Digitally signed by O'Connor, Tina M(Z06952)

Ti na M ~ J n6ason:oi2 SODN- cn=O'Connor, Tina M (Z06952) attest to the accuracy

[7Cic(* rQ ,/- nd integrity of this document (Z0695 '2 Date: 2009.10.28 05:57:33 -07'00' PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 Effective 10/29/2009 Responsible Engineer Foste r, lDigitally signed by Foster, Date

Glenn A(Z35831)

' DN: cn=Foster, Glenn A Glenn. A ,(Z35831)

G le

e* J

/--,m,,*

A'% f"Rýeason: I am the author of this

,* ),,ý_document, Date: 2009.10.27 16:10:17 (Z. 3 5. 83 -07'00' Independent Reviewer -, .* Digitally signed by Delorenzi,; Delorenzi, Mark J(Z01931)

Date Mark M rk /J DION: cn=Delorenzi, Mark J f'7.*(ZO1931)

Reason: I have reviewed

, thl*; ddument 7 Date: 2009.10.27 16:34:06

.*,am 3l# m -07'00' Responsible Section Leader Date Row Ro la a," ,)

Digitally signed by Rowland,

ýkj\iJames Dv**

W(Z80533)

N: cn=Rowland, James W I A *,(Z80533)

DtaO.I I

VV/ ;Reason: Iam approving this James V, 1 documentas temporary

/-.*Rload

. . *A*nlysis SL (Z8053/*/,. Date: 2009610.27 16:50:38

-0700' Page 1 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 Table of Contents Description Page Cover Page 1 Table of Contents 2 List of Figures 3 List of Tables 4 Affected Technical Specifications 5 Analytical Methods 6 CORE Operating Limits 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 8 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 8 3.1.4 Moderator Temperature Coefficient (MTC) 8 3.1.5 Control Element Assembly (CEA) Alignment 8 3.1.7 Regulating CEA Insertion Limits 8 3.1.8 Part Strength CEA Insertion Limits 9 3.2.1 Linear Heat Rate (LHR) 9 3.2.3 Azimuthal Power Tilt (Tq) 9 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 9 3.2.5 Axial Shape Index (ASI) 10 3.3.12 Boron Dilution Alarm System (BDAS) 10 3.9.1 Boron Concentration 10 Page 2 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 List of Figures Description Page Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature 11 Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature 12 Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes 1 and 2 13 Figure 3.1.5-1 Core Power Limit After CEA Deviation 14 Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power 15 (COLSS in Service)

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

Figure 3.1.8-1 Part Strength CEA Insertion Limits Versus Thermal Power 17 Figure 3.2.3-1 Azimuthal Power Tilt Versus Thermal Power 18 (COLSS in Service)

Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both 19 CEACs Inoperable In Any Operable CPC Channel Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core 20 Protection Calculators (COLSS Out of Service, CEAC(s)

Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core 21 Protection Calculators (COLSS Out of Service, Both CEACs Inoperable In Any Operable CPC Channel)

Page 3 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 List of Tables Description Page Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff> 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron 23 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 24 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 25 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 26 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff< 0.95 Page 4 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 Strength 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 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 ANALYTICAL METHODS The COLR contains the complete identification for each of the Technical Specification referenced topical reports (i.e., report number, title, revision, date, and any supplements) that provide the NRC-approved analytical methods used to determine the core operating limits, described in the following documents:

Title Report No. Rev Date SuWpl ement

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

bly Ejection Analysis (NOO-1301-01204-1) 0190-A 1976

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

Nuclear Design (NOO1-1900-01412-0) 266-P-A

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

Uncertainties (NOO1-1303-01747-2) 356(V)-P-A (ARI) (April 1996)

4) System 8 0 TM Inlet Flow Distribution Enclosure N.A. February 1-P (NOO1-1301-01228-0) 1-P to LD- 1993 82-054

5) Calculative Methods for the CE Large CENPD- N.A. March 2001 4-P-A Break LOCA Evaluation Model for the 132 Analysis of CE and W Designed NSSS (NOOl-1900-01192-3)

6) Calculative Methods for the CE Small CENPD- N.A. April 1998 2-P-A Break LOCA Evaluation Model 137-P (NOO1-1900-01185-3)

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

(NOO1-0201-00026-1) P-A

8) Arizona Public Service Company PWR NFM-005 N.A. January N.A.

Reactor Physics Methodology Using 2006 CASMO-4/SIMULATE-3 (NFM-005)

9) Technical Description Manual for the CE-NPD 2 March 2005 N.A.

CENTS CodeVolume 1 282-P-A (CENTS-TD MANUAL-VOL 1) Vols. I

10) Technical Description Manual for the CE-NPD 2 March 2005 N.A.

CENTS Code Volume 2 282-P-A (CENTS-TD MANUAL-VOL 2) Vols. 2

11) Technical Description Manual for the CE-NPD 2 March 2005 N.A.

CENTS CodeVolume 3 282-P-A (CENTS-TD MANUAL-VOL 3) Vols. 3 Page 6 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 Title Report No. Rev Date Sumel ement

12) Implementation of ZIRLOTM Cladding CENPD- 0 November N.A.

Material in CE Nuclear Power Fuel 404-P-A 2001 Assembly Designs (NO01-1900-01329-0)

13) HERMITE, A Multi-Dimensional CENPD- July 1976 Space-Time Kinetics Code for PWR Transients 188-A I

14) TORC Code, A Computer Code for CENPD- April 1986 Determining the Thermal Margin of a 161-P-A Reactor Core.

15) CETOP-D Code Structures and Model- CEN- September ing Methods for San Onofre Nuclear 160(S)-P 1981 Generating Station Units 2 and 3 (NOO 1-1301-01185)

16) CPC Methodology Changes for the CPC CEN-3 10- 0 April Improvement Program (NOO1-1303- P-A 1986 02283)

17) Loss of Flow, C-E Methods for Loss of 0 June Flow Analysis (NOO1-1301-01203)

CENPD-183-A 1984 I

18) Methodology for Core Designs Contain- CENPD- 0 August ing Erbium Burnable Absorbers (NOO 1- 382-P-A 1993 0201-00035)

19) Verification of the Acceptability of a 1- CEN-386- 0 August Pin Burnup Limit of 60 MWD/kgU for P-A 1992 Combustion Engineering 16 x 16 PWR Fuel (NO0 1-0201-00042)

Page 7 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 (SDM) - 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 (MTC)

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-strength or part-strength 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. The required power reduction is based on the initial power before reducing power.

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, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits1 shown in Figure 3.1.7-2.2 Regulating Groups 1 and 2 CEAs shall be maintained fully withdrawn 3 while in Modes 1 and 2 (except while performing SR 3.1.5.3).

1 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:

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.

Page 8 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 Fully withdrawn - >147.75" (Pulse Counter indication) and >145.25" (RSPT indication) 3.1.8 - Part Strength CEA Insertion Limits The part strength 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 (Tq)

The AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 10% with COLSS IN SERVICE when power is greater than 20% and less than or equal to 50%. Additionally, the AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 5% with COLSS IN SERVICE when power is greater than 50%. See Figure 3.2.3-1.

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

COLSS IN SERVICE' and Both CEACs INOPERABLE in Any OPERABLE CPC Channel - Maintain 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 and CEAC(s) OPERABLE - Operate 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 - Operate within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel with both CEACs INOPERABLE.

Page 9 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 *0.17 for power > 50%

-0.28 < ASI < 0.17 for power >20% and < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 < ASI < 0.10 for power >20%

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 of the Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration >_3000 ppm.

Page 10 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN 7 .. . .. ,, , , , .. . . . . . . .. . . . . . . . .. . . . ,. ,. .. .

REGION OF ACCEPTABLE/

OPERATION z

z REGIONOF

--- ------ ---i:*

UNACCEPTABLE OPERATION (350,1::.0) o 100 200 300 400 500 600 COLD LEG TEMPERATURE ('F)

Page 11 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED 7I (51 6 ------------- . ......

REGION OF ACCEPTABLE-5 ............... OP E l A TIAo N...,..--..-- ............--...........-------------

4 Zg4 (350,4.0) z 03 Z 0

[-,

'REGION OF UNACCEPTABLE 2 ............. ........................

T I -- ..........

OPERATION 0 .l.ll.l.liL1L i .1 . . . . . . . ...... J.

. . .L..

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

Page 12 of 26 3

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.4-1 MTC ACCEPTABLE OPERATION, MODES I AND 2 0.5

- "%0.

'ý ,:' . .. * .*' " ' . .' ..... i.. . . ., . ., . .

0.0 (100%,-o.

-0.5 ............................

-1.

z o -1.5 .................. ............. MTC..............

- A R EA O F- ...................................................

0

-ACCEPTABLE U

OPEPATION

-2.0 1 -2.5

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

< -3.0 0 -0%,-3.4)

-3.5 - -- -- ------------.......- -----------

-4.0 I

. . . . . i.-- . .-------

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

(% OF RATED THERMAL POWER)

Maintain Operation within Boundary TECH SPEC 3.1.4 Maximum Upper Limit ........

Page 13 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.5-1 CORE POXVER REDUCTION AFTER CEA DEVIATION*

92 ......... 20 ...

16 -100% to

>80% RTP 15 15 z0 r- -

1 . . 12. 80% to ug~

>70% RTP 1o 9---- --- ........- --- 7-----

10 8 -70% to

>45% RTP 6

5 ----------------

5

!ý45% RTP

- 0-0 ................ ...................

I

. . . . . . . . . 1 . 1 . . . . . . II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

WHEN CORE POWER IS REDUCED TO 35% OF RATED THERMAL POWER PER THIS LIMIT CURVE, FURTHER REDUCTION IS NOT I

REQUIRED.

Page 14 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.7-1 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS IN SERVICE)

, r, I.U 0.9 -- -----

-------- (SEEFOO.TNOT-E IN SEACTI N -31.7---------

FOR XPPLICAýBILi'1Y FOLLOWIMNG::

0.8 A REACTOR CUTBACK) ..................

0.7 . ..... . .... -RP-4-POS=-(72-5--xFRA*C.-PWR) +-25..

R GRP 5 POS = (*72.5::x FRAC. PWR -64.5

< 0.6 z.

0.5 J1 0

z 0.4 0

0.3 .. . ..................................... ....... ........

0.2 - . . ,.- -............... .-------- .---- - ...............

e* ! *

m: :e : * ! : : : : : J 0.1 00l GROUP 5 GROUP 3 GROUP I I I I I I I I I I I I I I I I I I I FW* 120 90 60 30 0 FW* 120 90 60 30 0 FW* 120 90 60 30 0 GROUP 4 GROUP 2 Ft 1A0 9P0 6OS 3ITO FN W*ITHD 6A0 3+0 CEA POSITION (INCHES WITHDRAWN)

Fully Withdrawn (FW) is defined as > 147.75" (Pulse Counter) and > 145.25" (RSPT).

Page 15 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.7-2 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE) 1.0 0.9 0.8 -....

----- ..... .(SEE-FOOTNO-T-EIN SECTInON 3i7.1-.7 --

FOR APPLICABILITY FOLLOWI'NG

. .... i ........ ........ A: --

...... -- ........ .......CUTBACK)

REACTOR i .......i ...... *.......... *.....

0.7 2

ii : i : i

< 0.6 PGRP4POS-=(250.9-jcFRA-C.PWRt+-9.82-aGRP 5,P08 (250.9 i FRAC. PWR) -80.18 0.5 P:

0 ....... ......

0.4 I .I-z 0

p

£ U.J 0.3 . ... m *- --:.. ... . ------ i ........

0.2 0.1 nf GROUP5 I I I I I I I GROUP I I 3I I I I GROUP 1 I I I I I FW* 120 90 60 30 0 FW* 120 90 60 30 0 FW* 120 90 60 30 0 GROUP 4 GROUP 2 Ft* A POSII 6N0 N3Co CEA POSITION (INCHES WITHDRAWN)

H FWIt HD 6+A

Fully Withdrawn (FW) is defined as > 147.75" (Pulse Counter) and > 145.25" (RSPT).

Page 16 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.8-1 PART STRENGTH CEA INSERTION LIMITS VERSUS THERMAL POWER 0.0 10.0 20.0 30.0

" 40.0 50.0 rti 60.0 Z 70.0 *TRANSIEN T INSERTION, LIMIIT (75.0 INCHES}

0 o 80.0

< ERA.TIO.N

.............. . . O---------

P-E-RATIO --------- N ........................

u 90.0 UNACCEPTABLE RESTRICTED z 100.0

" 110.0

. . .b ... ..A...... IO N .. -...i....... ...i........... ..OP R ..T. ..-

..... O .--- ....

LONG TERM UN STEADY STATE INSERTIONLIMITSEI RTINACCEPTABLE kSRCE (112.5 INCHESM P ............- -I ..-...---... . ..............

L........................ .............

120.0

. . . . . . . . . . . ... ............ ::........--- .--. i---

130.0 140.0

.I .... . . . . l..

. . . . . . -. ----. .-- l.. -. --

. ---- Ii.. --- ---. ...... . . ... ..... . . I -------- ----- ----

1*O

VmV0 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 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.2.3-1 AZIMUTHAL POWER TILT VERSUS THERMAL POWER (COLSS IN SERVICE) 20.0 I 1 15.0 ----------

---......... ........ ........ ...R EG ION O F .............--- ...............

UNACCEPTABLE OPERATION e-0 10.0 --- ---- -- ... ... ----- -----

F-5.0 REGION OF ACCEPTABLE OPElRATION

, I I . 1 , , , .

(~ fl I 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

Page 18 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.2.4-1 COLSS DNBR OPERATING LIMIT ALLOWANCE FOR BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL 25 (95,20) 20 -

0 15 ........... -----------

z 10 -

0 z

.... --- - (80 )..........................................

5 -----------

( 70,0) 0 . . . . . . . . . . . I 1 I . . . . . .

50 60 70 80 90 100 CORE POWER LEVEL

(%OF RATED THERMAL POWER)

Page 19 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC(s) OPERABLE) 2.5 i-I-Iwl S.. ... ... . . ........ ..... .... ....... .. ... .... .. IV l ll l I l l ~l ACCEPTABLE OPERATION ANY POWER LEVEL AT LEAST 1 CEAC OPERABLE IN EACH OPERABLE CPC CHANNEL 2.4 ------------ . .................. ......... --.. --

(006,2 38)(01,3) (0-1,2.38)::

2.3 ------------ .................

(-0.1 2.28) 2.2 ....... ....... ......- ........ ......... :..................................................... ----------------- --------------

I ACCEPTABLE I OPERATION z ll POWER AT OR ABOVE 9W%

AT LEAST 1 CEAC OPERABLE IN u

2.1 --....-..-------..... -EACH OPERABLE CPC-CIIANNEL" ------------ ..............

S((.0,0,2.00) 2.0 ýG.-I 1-00y ..............

(119 3) $ ° UNACCEPTARLE 1.9 .. . ............ O PER AT ION ---.................. ................. --------------

1.8 L

-0.2.0 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 20 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 ACCEPTABLE ::OPERATION ANY POWER LEVEL BOTH CEACs INOPERABLE 3.5 ----------

IN ANY OPERABLE CPC CHANNEL 3.4 ................ ----- r (00(3 4- 1) --

.................... 0.1,3.41)::

0.--------41) 3.3 ................ -----

0.)

(-0.03.27) 3.2 ................ ....- . ......

UNACCEPTABýLE OPERATION 3.1 ---------------- ---------- ..........

.I 3.0 .... ......... ...1.1 ... ......... ......... ...... ........

-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 21 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 22 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 Ž 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 23 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 Ž 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ONA ONA Notes: SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 24 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 Ž 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 25 of 26

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 16 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 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 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 26 of 26

Enclosure 3 PVNGS Unit 3 Core Operating Limits Report (COLR)

Revision 19

PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 Effective Date: October 29, 2009 Responsible Daes bN Engineer apier, !Digitally signed by Napier, JosephJ DNs o Napier, Joseph J(Z71881)

J/ Reason: I am the author of this doc~umentý (Z7 188 )"* Dte: 200ý1,0.27 16:14:33-07'00' Independent Reviewer B odnar, fDigitealysigned by Bodnar, Walter Date Da lter S ,,s'z06432)

(: ... Bodnar, Walter S(Z06432)

W a lter Reason: I have reviewed this

-document"-"

(Z 6432)* Date: 2009:10.27 16:20:09-0700' Responsible Section Leader Aw lan d

*v.

. *,*..'*, ]

,0Dgoal,.

W(ZS0533) signed by Rowland, James Date W \DN: cn=Rowland, James W Jam . iJ~rr] es

.s(Z0533)VV/f/Re..... I am approving this

/,dgcurntV as temporary Reload (Z80533 n*ys IsD 1 Date:2009.1'0.2717:00:05 -0700O Page 1 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 Table of Contents Description Page Cover Page 1 Table of Contents 2 List of Figures 3 List of Tables 4 Affected Technical Specifications 5 Analytical Methods 6 CORE Operating Limits 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 8 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 8 3.1.4 Moderator Temperature Coefficient (MTC) 8 3.1.5 Control Element Assembly (CEA) Alignment 8 3.1.7 Regulating CEA Insertion Limits 8 3.1.8 Part Strength CEA Insertion Limits 9 3.2.1 Linear Heat Rate (LHR) 9 3.2.3 Azimuthal Power Tilt (Tq) 9 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 9 3.2.5 Axial Shape Index (ASI) 10 3.3.12 Boron Dilution Alarm System (BDAS) 10 3.9.1 Boron Concentration 10 Page 2 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 List of Figures Description Page Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature 11 Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature 12 Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes 1 and 2 13 Figure 3.1.5-1 Core Power Limit After CEA Deviation 14 Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power 15 (COLSS in Service)

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

Figure 3.1.8-1 Part Strength CEA Insertion Limits Versus Thermal Power 17 Figure 3.2.3-1 Azimuthal Power Tilt Versus Thermal Power 18 (COLSS in Service)

Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both 19 CEACs Inoperable In Any Operable CPC Channel Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core 20 Protection Calculators (COLSS Out of Service, CEAC(s)

Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core 21 Protection Calculators (COLSS Out of Service, Both CEACs Inoperable In Any Operable CPC Channel)

Page 3 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 List of Tables Description Page Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff> 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron 23 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 24 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 25 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 26 Dilution Detection as a Function of Operating Charging Pumps

'and Plant Operational Modes for Keff< 0.95 Page 4 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 1 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 Strength 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 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 ANALYTICAL METHODS The COLR contains the complete identification for each of the Technical Specification referenced topical reports (i.e., report number, title, revision, date, and any supplements) that provide the NRC-approved analytical methods used to determine the core operating limits, described in the following documents:

Title Report No. Rev Date Supl CE Method for Control Element Assembly CENPD- N.A. January N.A.

Ejection Analysis 0190-A 1976 (13-NOO1-1301-01204-1)

The ROCS and DIT Computer Codes for CENPD- N.A. April N.A.

Nuclear Design 266-P-A 1983 (13-N001-1900-01412-0)

Modified Statistical Combination of CEN- 01-P-A May N.A.

Uncertainties 356(V)-P-A 1988 (13-NOO1 - 1303-01747-2)

System 8 0 TM Inlet Flow Distribution Enclosure N.A. February 1-P (13-NOO1-1301-01228-0) 1-P to LD- 1993 82-054 Calculative Methods for the CE Large Break CENPD- N.A. March 4-P-A LOCA Evaluation Model for the Analysis of CE. 132 2001 and W Designed NSSS (13-NOO1 - 1900-01192-3)

Calculative Methods for the CE Small Break CENPD- N.A. April 2-P-A LOCA Evaluation Model 137-P 1998 (13-NO1 - 1900-01185-3)

Fuel Rod Maximum Allowable Pressure CEN-372- N.A. May N.A.

(13-NOO1-0201-00026-1) P-A 1990 Arizona Public Service Company PWR Reactor NFM-005 N.A. January N.A.

Physics Methodology Using 2006 CASMO-4/SIMULATE-3 (NFM-005)

Technical Description Manual for the CENTS CE-NPD 2 March N.A.

CodeVolume 1 282-P-A 2005 (CENTS-TD MANUAL-VOL 1) Vols. 1 Technical Description Manual for the CENTS CE-NPD 2 March N.A.

Code Volume 2 282-P-A 2005 (CENTS-TD MANUAL-VOL 2) Vols. 2 Page 6 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 Title Report No. Rev Date Suppi Technical Description Manual for the CENTS CE-NPD 2 March N.A.

CodeVolume 3 282-P-A 2005 (CENTS-TD MANUAL-VOL 3) Vols. 3 Implementation of ZIRLOTM Cladding Material CENPD- 0 November N.A.

in CE Nuclear Power Fuel Assembly Designs 404-P-A 2001 (13-NOO -1900-01329-0)

HERMITE, A Multi-Dimensional Space-Time CENPD- July Kinetics Code for PWR Transients 188-A 1976 (HERMITE-TOPICAL)

TORC Code, A Computer Code for Determin- CENPD- April ing the Thermal Margin of a Reactor Core 161-P-A 1986 (NOO-1301-01202)

CETOP-D Code Structures and Modeling Meth- CEN- September ods for San Onofre Nuclear Generating Station 160(S)-P 1981 Units 2 and 3, (N001-1301-01185)

CPC Methodology Changes for the CPC CEN-3 10- 0 April Improvement Program, (NOO1-1303-02283) P-A 1986 Loss; of Flow, C-E Methods for Loss of Flow CENPD- 0 June Analysis,. (NOO1-1301-01203) 183-A 1984 Methodology for Core Designs Containing CENPD- 0 August Erbium Burnable Absorbers 382-P-A 1993 (N001-0201-00035)

Verification of the Acceptability of a 1-Pin Bur- CEN-386- 0 August nup Limit of 60 MWD/kgU for Combustion P-A 1992 Engineering 16 x 16 PWR Fuel (NOO1-0201-00042)

Page 7 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 (SDM) - 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 (MTC)

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-strength or part-strength 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. The required power reduction is based on the initial power before reducing power.

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 limitsI shown in Figure 3.1.7-12; with COLSS OUT OF SERVICE, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits1 shown in Figure 3.1.7-2.2 Regulating Groups 1 and 2 CEAs shall be maintained fully withdrawn 3 while in Modes 1 and 2 (except whileperforming SR 3.1.5.3).

1 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, and4) 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:

a) Regulating Group 4 position is between 60 and 150 inches withdrawn.

b)' Regulating Gro up 5 position is maintained at least 10 inches lower than Page 8 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 Fully withdrawn - >147.75" (Pulse Counter indication) and >145.25" (RSPT indication) 3.1.8 - Part Strength CEA Insertion Limits The part strength 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 (T-)

The AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 10% with COLSS IN SERVICE when power is greater than 20% and less than or equal to 50%. Additionally, the AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 5% with COLSS IN SERVICE when power is greater than 50%. See Figure 3.2.3-1.

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

COLSS IN SERVICE and Both CEACs INOPERABLE in Any OPERABLE CPC Channel - Maintain 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 and CEAC(s) OPERABLE - Operate 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 - Operate within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel with both CEACs INOPERABLE.

Page 9 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 < 0.17 for power > 50%

-0.28 < ASI < 0.17 for power >20% and < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 < ASI < 0.10 for power >20%

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 of the Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration > 3000 ppm.

Page 10 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN 7

6 . . . . . . . --

. . . . . (. 5. 0 . . . .. . ...

5

REGION OF(00)

ACCEPTABLE-OPERATION

. ...........*....... ................I........ ........ ...........

03

- ~REGION :OF

UNACCEPTABLE 2

OPERATION -

(350,1:.0) 0 0 100 200 300 400 500 600 COLD LEG TEMPERATURE (fF)

Page 11 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED 7

(500,6.5):

6 REGION OF ACCEPTABLE 5 -OPERATION..I_.

2 4

(350,4.0) z 0 3 REGION OF UNACCEPTABILE 2

OPERATION

I. . .

0 ............................. ...........

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

Page 12 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.1.4-1 MTC ACCEPTABLE OPERATION, MODES 1 AND 2 0.5 L .........................

"." 0.... :........

- i* ( :: ...... ....... .00O%,Q

(..

i.------------

.... ... i .......... .......... ..... ........... ......- ------

0.0 i (100%.-0.2

-0.5

-1.0 0

[.- . .. ........ ---- .............----

--- ...... ............. ýMT-C-AR EA--O F ...................................................

-1.5 ACCEPTABLE W

U

-2.0 L-.

-2.5 0

[.- .. . . . . . . . . . . . . . . ........ ... . - .-.-.-- .....

-- i-....

..- .... i---- ..................-.-------..

-3.0 0

-3.5 (0100%,4.2

-4.0

-- . . ..... . I . . . . . i... . .---

.a 5

-45 0 10 20 30 40 50 60 70 80 90 100 CORE POWER LEVEL

(%OF RATED THERMAL POWER)

Maintain Operation within Boundary TECH SPEC 3.1.4 Maximum Upper Limit ........

Page 13 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 I

FIGURE 3.1.5- 1 CORE POWER REDUCTION AFTER CEA DEVIATION*

A I .. . r..

rn

.. .-r-r-T-rrr T......... - 1 1 T r...... Ir[n[rs 20 1111rrrIr 15 15 0m t0 t0 5 5 0

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

WHEN CORE POWER IS REDUCED TO 35% OF RATED THERMAL POWER PER THIS LIMIT CURVE, FURTHER REDUCTION IS NOT REQUIRED.

Page 14 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.1.7-1 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS IN SERVICE) m 1.0 I I 1 I 1 I I I I I 0.9 +- -(SEE FOOaTNOT-E-IN -SE-CTION3ýI-7-.................

FOR APPLICABILITY FOLLOWING:

.A_ C.T . ._

A REACTOR CUTBACK) .................--

A. . ).................... ---- ------

0.8 -

0.7 GRP4,-POS-= (-I2.5-,x-FRA-C. PWR) -+-25.5---

GRP 5 POS = (172.5 x FRAC. PWR) - 64.5 0.6 w 0 H Z 0.5 0 (n 0

0.4 U :0 0.

L--

0.3 0.2 0.1 A ) I I I I 11 I GROUP I I GROUP5 i I I I i I GROUP3 I I I I I I I I I I FW* 120 90 60 30 0 FW* 120 90 60 30 0 FW* 120 90 60 30 0 GROUP4 GROUP2 Ft*10 t0 6+0 3t Ft I1t0 1 0 6+0 30 CEA POSITION (INCHES WITHDRAWN)

Fully Withdrawn (FW) is defined as > 147.75" (Pulse Counter) and > 145.25" (RSPT).

Page 15 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.1.7-2 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE) 1.0 0.9 % ~i.~. .~.. . .~. ..---. .--- .? .--- . .. --------I............ ....... :........ :......

0.8 (SEE FOOTNOTE-IN-SECTION 3-1-....

FOR APPIICABILITY FOLLOWING

.... E...AC.T..O.R...C....-BAK) - .............-

0.7 2

0 0.6 ---GRP4POS-= (250.9 y FRAC; PWR-+-9.82-GRP 5 POS (250.9 k FRAC. PWR) - 80.18

-.- 0. ------

0.5 0

0.4

. 0.3 0zV 0.2 IHN*HHB*

0.1 ....

Ant I I I I I V

GROUP3 GROUP 1 I GROUP5 I I I I I I I I I I I I I I I I I FW* 120 90 60 30 0 FW* 120 90 60 30 0 FW* 120 90 60 30 0 GROUP 4 GROUP 2 Ft It10 t9 60 3+0 Ft* 100 6+0 3 CEA POSITION (INCHES WITHDRAWN)

Fully Withdrawn (FW) is defined as > 147.75" (Pulse Counter) and > 145.25" (RSPT).

Page 16 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.1.8-1 PART STRENGTH CEA INSERTION LIMITS VERSUS THERMAL POWER 0.0 20 .0 10.0 . . . .. .... :.... . . . . . .. ------- .-- .--- . . --

20.0 30.0

< 40.0 S 50.0

30. ------ -------------- -------- - ------ .....

m 60.0 o TRANSIE*NT INSERTION LIMIT (75.0::INCHES 10 0.0 --. ..-----

.... . . .. i........................

z 5

90.0 ............ ........ OPERATION....... .

ZO ;UNACCEPTABLE :

RESTRICTED, Z u 3710.0

~0 .. ......b*......

-..-----...- PiT .......i.

............ O -- ......i............

---.............. -- -I .........:-.................

1 LONG TERM STEADY STATE INSERTIONTLIMITS! (112.5 INCHES 130.0. ------------ - ......................... - -------------........

14o.0 -.-...- .. . ..--

OPERATION ACCEPTABLE 150.0 .... I ... . . .... .... I

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

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 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.2.3-1 AZIMUTHAL POWER TILT VERSUS THERMAL POWER (COLSS IN SERVICE) 20.0 15.0 I- ..REGION -OF...............

UNACCEPTABLE OPERATION F-10.0 F-N -. ;..

5.0 T I REGION OF ýLCCEPTABLE OPERATION

- . I . .

0.0 ................

20 .0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

Page 18 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.2.4-1 COLSS DNBR OPERATING LIMIT ALLOWANCE FOR BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL 25 (95,20) 20 . .........................

z 0

15 ...................

0 z 101-5 ...................

(80,5)

(70,0);

0 50 60 70 80 90 100 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

Page 19 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC(s) OPERABLE) 2.5 ri-w-...............,-iY~i u................................ U l~ l l U m l l... .... 1'IUYll rrri999II ACCEPTABLE OPERATION ANY POWER LEVEL AT LEAST 1 CEAC OPERABLE IN EACH OPERABLE CPC CHANNEL 2.4

i:

2.3 ~

-~ ------------------ I....,----------.....

(-6.1,2.28) la 2.2 ACCEPTABLE OPERATION POWER AT OR ABOVE 90%

UD AT LEAST 1 CEAC OPERABLE IN 2.1 .................

-..---.-...- EACH OPERABLEECPC CIIANNEL:".

u *

(0.0.,2.00) 2.0 93... .. . .. .I. *°°

(-01, ..I . ... . . . . I . .UNACCEPT'ABLE

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

.. -. --------------------------------.. .O PE RAT ION ..... .................................. ..

1.9 18

-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 20 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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. . .. ........... ......... ......... .. .... .... r ACCEPTABLE OPERATION ANY POWER LEVEL BOTH CEACs INOPERABLE 3.5 . .................................. -- --- ---- --- O---- E--- ---- B--- -C --*-----------..--... ---... .... . ...

IN ANY OPERABLE CPC CHANNEL 34 (Ot,341)(01.1,3.4....

3 .4 .... .. ........ .............. .... .. - -------. .-- ................. ] ............. --... ............. .

U (-0.1.3.27) 3 .2 ................................... .............---................. ..... ................................................... ................ .

UNACCEPTABLE OPERATION 3 .0 .. ... . I ........ i

......... 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 21 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 22 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 Ž 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 23 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 > 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ONA ONA Notes: SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 24 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 > 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 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 25 of 26

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 19 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 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 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 26 of 26

ML093290107

Text

Dear Sirs:

Subject:

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