ML17313A670
| ML17313A670 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 11/04/1998 |
| From: | ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | |
| Shared Package | |
| ML17313A671 | List: |
| References | |
| NUDOCS 9811100252 | |
| Download: ML17313A670 (8) | |
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PVNGS UNIT2 CORE OPERATING LIMITSREPORT
, Revision 2 CORE OPERATING LIMITSREPORT PALO VERDE NUCLEARGENERATING STATION (PVNGS)
UNIT2 Revision 2 Page 1 of 25 8<<<oo252 ~sooas29 PDR P
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PVNGS UNIT2 CORE OPERATING LIMITSREPORT Table of Contents Revision 2 Pe~~cri )tion Cover Page Table of Contents Affected Technical Specifications g~evi i~¹ Paae CORE Operating Limits 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 BoilingRatio (DNBR) 3.2.5 Axial Shape Index (ASI) 3.3.12 Boron DilutionAlarm System (BDAS) 3.9.1 Boron Concentration List of Figures Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes 1 and 2 10 Figure 3.1.5-1 Core Power LimitAfter CEA Deviation 12 Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power (COLSS in Service) 13 Figure 3.1.7-2 CEA Insertion Limits Versus Thermal Power 1
(COLSS Out of Service)
Figure 3.1.8-1 Part Length CEA Insertion Limits Versus Thermal Power 1
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PVNGS IT 2 CORE OPERATING LIMITS
< PORT Table of Contents (Continued)
Revision 2
~Descri tion Revision ¹
~pa e Figure 3.2.3-1 Azimuthal Power TiltVersus Thermal Power (COLSS in Service)
Cl Figure 3.2.4-1 COLSS DNBR Operating LimitAllowance for Both CEACs Inoperable 16 17 Figure 3.2.4-2 DNBR Margin Operating LimitBased on the Core Protection Calculators (COLSS Out of Service, CEACs Operable) 18 Figure 3.2.4-3 DNBR Margin Operating LimitBased on the Core Protection Calculators (COLSS Out of Service, CEACs Inoperable) 19 List of Tables 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 21 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 > Keff> 0.97 22 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 23 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 24 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 25 Page 3 of 25
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PVNGS UNIT2 CORE OPERATING LIMITSREPORT Revision 2 RK PKRATIN LI IT NTIN KD
.25-ial ha e n ex A The core average AXIALSHAPE INDEX(ASI) shall be maintained within the followinglimits:
-0.18 5 ASI 5+0.16 for power > 50%
-0.28 < ASI 6 +0.16 for power ( 50%
-0.10 < ASI 5 0.10 3..12-B ron Dilution larm tern BDA With one or both start-up channel high neutron fluxalarms inoperable, the RCS boron concentration shall be determined at the applicable monitoring &equency specified in Tables 3.8.12-1 through 8.8.12-5.
.9.
- B ron ncentration The boron concentration ofall filledportions ofthe Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration > 3000 ppm.
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