ML17312B600

Rev 2 to PVNGS Unit 2 Cycle 7 Colr.

ML17312B600
Person / Time
Site:	Palo Verde
Issue date:	07/30/1997
From:	ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17312B598	List: ML17312B597 ML17312B599 ML17312B600 ML17312B601 ML17312B602
References
NUDOCS 9708050254
Download: ML17312B600 (8)

Text

Revision 2 Pages Unit 2 COLR 9708050254 9'70730 PDR ADQCK 05000528'DR P CORE OI EmxING uMnS RZI ORr PALO VERDE NUCLEAR GENERATING STATION (PVNGS)UNIT 2 CYCLE 7 Revision 2 Page 1 of 23

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t l Revision 2 PVNGS UNIT 2 CYCLE 7 CORK OPERATING LIMITS REPORT Table of Contents~Descri tion Revision¹~Pa e Cover Page Table of Contents Affected Technical Specifications CORE Operating Limits 3.1.1.1 Shutdown Margin-Reactor Trip Breakers Open 3.1.1.2 Shutdown Margin-Reactor Trip Breakers Closed 3.1.1.3 Moderator Temperature Coefficient 3.1.2.7 Boron Dilution Alarms 3.1.3.1 Movable Control Assemblies

-CEA Position 3.1.3.6 Regulating CEA Insertion Limits 3.1.3.7 Part Length CEA Insertion Limits 3.2.1 Linear Heat Rate 3.2.3 Azimuthal Power Tilt-Tq 3.2.4 DNBR Margin 3.2.7 Axial Shape Index 3.9.1 Boron Concentration (Mode 6)List of Figures Figure 3.1.1.1-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Open 7a Figure 3.1.1.2-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Closed Figure 3.1.1.3-1 MTC Acceptable Operation, Modes 1 and 2 Figure 3.1.3.1-1 Core Power Limit After CEA Deviation 10 Figure 3.1.3.6-1 CEA Insertion Limits Versus Thermal Power (COLSS in Service)Figure 3.1.3.6-2 CEA Insertion Limits Versus Thermal Power (COLSS Out of Service)12 Figure 3.1.3.7-1 Part Length CEA Insertion Limits Versus Thermal Power 0 13 Page 2 of 23

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t t Revision 2 PVNGS UNIT 2 CYCLE 7 CORE OPERATING LIMITS RE<PORT Table of Contents (Continued)

~Deecri<ion Revision 0~Pa e Figure 3.2.3-1 Azimuthal Power Tilt Versus Thermal Power (COLSS in Service)14 Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both CEAC's Inoperable 15 Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core Protection Calculators (COLSS Out of Service, CEAC's Operable)16 Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core Protection Calculators (COLSS Out of Service, CEAC's Inoperable) 17 List of Tables Table 3.1.2.7-1 Required Monitoring Frequencies for Backup Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff>0.98 19 Table 3.1.2.7-2 Required Monitoring Frequencies for Backup Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.98>Keff>0.97 20 Table 3.1.2.7-3 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 21 Table 3.1.2.7-4 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 22 Table 3.1.2.7-5 Required Monitoring Frequencies for Backup Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff (0.95 23 Page 3 of 23

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Revision 2 PVNGS UNIT 2 CYCLE 7 CORE OPERATING LIMITS REPORT RK PERATIN I IMIT,-TIN KD 3.1.1.3-Moderator Tem erature CoefFicient The moderator temperature coefficient (MTC)shall be within the area of Acceptable Operation shown in Figure 3.1.1.3-1.

8.1.2.7-Boron Dilution Alarms 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 3.1.2.7-1 through 3.1.2.7-5.

3.1.3.1-Movable ntrol Assemblies

-CEA Position 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 3.1.3.1-1.

3.1.3.6-Re atin EA Insertion Limits One or more CEAC's OPERABLE: With COLSS IN SERVICE, regulation CEA groups shall be limited to the withdrawal sequence and to the insertion limits shown in Figure 3.1.3.6-1; with COLSS OUT OF SERVICE, regulation CEA groups shall be limited to the withdrawal sequence and to the insertion limits shown in Figure 3.1.3.6-2.

8.1.3.7-Part Len h EA Insertion Limits One or more CEAC's OPERABLE: The part length CEA groups shall be limited to the insertion limits shown in Figure 3.1.3.7-1.

8.2.1-Linear Heat Rate The linear heat rate limit of 18.3 kW/ft shall be maintained.

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