ML17312B601
| ML17312B601 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 07/30/1997 |
| From: | ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | |
| Shared Package | |
| ML17312B598 | List: |
| References | |
| NUDOCS 9708050256 | |
| Download: ML17312B601 (6) | |
Text
Revision 3 Pages Unit 2 COLR 9708050256 970730 PDR ADQCK 05000528 P
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CORK OPERATING LIMITSREPORT PALO VERDE NUCLEARGENERATING STATION (PVNGS)
UNIT2 CYCLE 7 Revision 3 Page 1 of 23
Revision 3 PVNGS UNIT2 YCLE 7 CORE OPERATING LIMI S REPORT Table of Contents
~Descri rion Revision 4 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 ja 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 LimitAfter CEA Deviation 10 Figure 3.1.3.6-l CEA Insertion Limits Versus Thermal Power (COLSS in Service) 0 Figure 3.1.3.6-2 CEA Insertion Limits Versus Thermal Power (COLSS Out of Service)
Figure 3.1.3.7-1 Part Length CEA Insertion Limits Versus Thermal Power 0
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Revision 3
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PViiGS UNIT 2 CYCLE 7 CORE OPERATING LIMITSREPORT Table of Contents (Continued)
~Descri sion Revision 0 Pa~e Figure 3.2.3-1 Azimuthal Power Tilt Versus Thermal Power (COLSS in Service)
Figure 3.2.4-1 COLSS DNBR Operating LimitAllowance for Both CEAC's Inoperable 15 Figure 3.2.4-2 DNBR Margin Operating LimitBased on the Core Protection Calculators (COLSS Out of Service, CEAC's Operable) 16 Figure 3.2.4-3 DNBR Margin Operating LimitBased on the Core Protection Calculators (COLSS Out of Service, CEAC's Inoperable) 17 List of Tables 18 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
')0 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 Frequericies for Backup Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff< 0.95 7
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Revision 3 PVNGS UNIT2 CYCLE 7 CORE OPERATING LIMITSREPORT RE P RATIN I'vIIT -
NTIN >ED
.2.3 - Azimuthal Power Tilt-T The AZIMUTHALPOWER TILT(Tq) shall be less than or equal to the limitin Figure 3.2.3-1 with COLSS IN SERVICE.
3.2.4 - DNBR Mar n COLSS IN SERVICE and Both CEAC's INOPERABLE - Maintaining COLSS calculated core p'ower less than or equal to COLSS calculated core power operation limitbased on DNBR decreased by the allowance shown in Figure 3.2.4-1
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COLSS OUT OF SERVICE and Either One or Both CEAC's are OPERABLE - Operating within the region of acceptable operation of Figure 3.2.4-2 using any operable CPC channel.
COLSS OUT OF SERVICE and CEAC's INOPERABLE - Operating within the region of acceptable operation ofFigure 3.2.4-3 using any operable CPC channel.
3.2.7 - Axial Sha e Index The core average AXLES SHAPE INDEX(ASI) shall be maintained within the followinglimits:
-0.188 < ASI < 0.169 for power > 50 lo
-0.288 < ASI < 0.169 for power < 50 lo COLSS OUT OF SERVICE (CPC)
-0.10 < ASI < 0.10 LI T FFI o o o centration ode 6)
The boron concentration ofall filled portions ofthe Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration > 2500 ppm.
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