ML17306A724

Monthly Operating Repts for Apr 1992 for Pvngs,Units 1,2 & 3.W/920514 Ltr

ML17306A724
Person / Time
Site:	Palo Verde
Issue date:	04/30/1992
From:	Chavet K, James M. Levine ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
254-02045-JML-K, 254-2045-JML-K, NUDOCS 9205150222
Download: ML17306A724 (32)

Text

ACCELERATED DIS UTION DEMONSTRATION SYSTEM~~-e REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)Q4'4 g" ACCESSION NBR:9205150222 DOC.DATE: 92/04/30 NOTARIZED:

NO'OCKET FACIL:STN-50-528.Palo Verde Nuclear Station, Unit 1, Arizona Publi 05000528 STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH.NAME AUTHOR AFFILIATION CHAVET,K.A.

Arizona Public Service Co.(formerly Arizona Nuclear Power LEVINE,J.M.

Arizona Public Service Co.(formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION RECIPIENT ID CODE/NAME PD5 LA TRAMMELL,C COPIES LTTR ENCL 3 3 1 1 RECIPIENT ID CODE/NAME PD5 PD THOMPSON,M COPIES LTTR ENCL 1 1 1 1

SUBJECT:

Monthly operating repts for Apr 1992 for PVNGS,Units 1,2 6 3.W/920514 ltr.k DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTR ENCL SIZE: TITLE: Monthly Operating Report (per Tech Specs)NOTES:STANDARDIZED PLANT Standardized plant.Standardized plant.D 05000528 A 05000I'5'29

>05000530 D D INTERNAL: ACRS AEOD/DSP/TPAB NRR/DOEA/OEAB RGN5 EXTERNAL: EGGG BRYCE,J.H NSIC 10 10 1 1 1 1 1 1 1 1 1 1 AEOD/DOA NRR/DLPQ/LPEB1(0 G=-F-IEE~~

0 1 NRC PDR 1 1 1 1 1 1 1 D NOTE TO ALL"RIDS" RECIPIENTS:

D D PLEASE HELP US TO REDUCE WASTE!CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT.20079)TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 25 ENCL 25 V k lP>.

Arizona Public Service Company PALO VERDE NUCLEAR GENERATING STATION P.O.BOX 52034~PHOENIX, ARIZONA 85072-2034 JAMES M, LEVINE VICE PAESIDENT NUCLEAR PAODUCTION 254-02045-JML/KAC May 14, 1992 U.S.Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-37 Washington, DC 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)Units 1, 2, and 3 Docket Nos.STN 50-528/529/530 Monthly Operating Reports for April 1992 File: 92-024-404'2-056-026'nclosed are the Monthly Operating Reports for April 1992, prepared and submitted pursuant to Specification 6.9.1.6 of Appendix A (Technical Specifications) to the PVNGS Units 1, 2, and 3 Operating Licenses.,By copy of this letter, Arizona Public Service Company is also forwarding the Monthly Operating Reports to the Regional Administrator, NRC Region V.If you have any questions, please contact Kent A.Chavet at (602)340-4718.Sincerely, JMUKAC/kac Enclosures cc: J.B.Martin D.H.Coe A.C.Gehr A.H.Gutterman INPO Records Center Utility Data Institute (all w/enclosures) 9205150222 920430 g 8$,', PDR ADOCK 05000528'R PDR

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~~0 0 NRC MONTHLY, OPERATING REPORT DOCKET NO.50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY K A Chavet OPERATING STATUS 1.2.3.4, 5.6.7.8.9.10.Unit Name: Palo Verde Nuclear Generatin Station Unit 1 Reporting Period:~A ril 1992 Licensed Thermal Power (MWt): 3800 Nameplate Rating (Gross MWe): 1403 Design Electrical Rating (Net MWe):~12 0 Maximum Dependable Capacity (Gross'MWe): 1303 Maximum Dependable Capacity (Net MWe): 1221 If Changes Occur In Capacity Ratings (Item Numbers 3 Through 7)Since Last Report, Give Reasons: N A Power Level to Which Restricted, If Any (Net MWe): None Reasons For Restrictions, If Any: N A ,':.":,".:.'.:,':;:!",a.';:::ji

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<l'4!'<gI 0.0 0.0 0.0 0.0 0 0 0 0.0s 0.0s 0.0s 0.0a 0.0a 831.0 0.0 810.3 0.0 2,679,785 924,200 857,484 27.9a 27.9a 24.2a 23.3%25.1%29,890.1 0.0 29,132.4 0.0 106,544,041 36,972,900 34,682,276 53.1%53.1s 51.8S 49.8s 20.4%24.Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each): Refuelin outa e be an Februar 15 1992 70 da s 25.If Shutdown At End of Report Period, Estimated Date of Start-up: Ma 18 199 INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION Forecast~05 85 06 85 11 85 Achieved 05/525 85 06 10 85 01 28 86 1

~~

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY K.A, Chavet MONTH: April 1992 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 18 19 20 21 22 23 24 25 10 26 27 12 28 13 29 14 30 15 16 2 i!II I I f I REFUELING INFORMATION DOCKET NO.50-528 UNIT NAME PVNGS-I DATE COMPLETED BY K.A.Chavet Scheduled date for next refueling shutdown.The Unit 1 third refueling outage began on 02/15/92.Scheduled date for restart following refueling.

05/18/92 Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment2 Yes.Figures 3.2-2 and 3.2-2A of the Technical Specifications have been revised to reflect different DNBR margin limits.Scheduled date for submitting proposed licensing action and supporting information.

Information to support the revision to Figures 3.2-2 and 3.2-2A was submitted on 12/24/91.The figures were revised in Technical'Specification Amendment No.61 on 04/03/92.Important Licensing considerations associated with refueling, e.g., new or different fuel.design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, and new operating procedures.

The Unit 1, Cycle 4, nuclear design was performed using the DIT, ROCS, and MC computer codes described in Topical Report CENPD-266-P-A with the improvements in anisotropic scattering, higher order interface currents, nodal expansion method, and assembly discontinuity factors.Biases and uncertainties used in the Unit 1 Cycle 4 analysis were established by comparing results obtained from analytical calculation with measured data to insure that 95/95 confidence limits are maintained in the safety analysis.The number of fuel assemblies.

a)In the core.241 b)In the spent fuel storage pool.267 Licensed spent fuel storage capacity.1329 Intended change in spent fuel storage capacity.None Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.2004 (18 Month reloads and full core discharge capability).

3 0 I

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY K A Chavet~Anil 1992 04/01 04/15 04/28 04/30 0000 0242 0140 2400 Unit began the month with the RX defueled.Unit entered Mode 6.Unit entered Mode 5.Ended the month in Mode 5.4 SHUTDOWNS AND POWER REDUCTIONS April 1992 DOCKET NO 50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY K.A.Chavet No.Outage Method of Duration Shutting System Date Type Hours Reason Down Reactor LER No.Code Component Code~Cause and Corrective Action to Prevent Recurrence 92-02 02/15/92 S 720.0 N/A N/A N/A t Continuation of the third refueling outage.~F-Forced S-Scheduled

~Reason: A-Equipment Failure(Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training&License Examination F-Administrative G-Operational Error H-Other (Explain)~Method: 1-Manual 2-Manual Scram 3-Automatic Scram 4-Continuation from Previous Month 5-Reduction of 20%or Greater in the Past 24 Hours 9-Other-(Explain) 4Exhibit F-Instructions for Preparation of the Data Entry Sheets for Licensee Event Report (LER)File (NUREG 0161)~Exhibit H-Same Source 5 4~\

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K.A.Chavet MONTH: April 1992 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1247 17 1240 1246 18 1241 1210 19 1243 1241 20 1231 1242 21 1242 1241 22 1240 1243 23 1241 1247 24 1239 1252 25 1232 10 1245 1224 26 27 1232 1230 1241 28 1230 13 1242 29 1229 14 1239 30 1235 15 1239 16 1240 7

REFUELING INFORMATION DOCKET NO.50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K.A.Chavet Scheduled date for next refueling shutdown.03/15/93, 4th refueling Scheduled date for restart following refueling.

05/24/93 Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

Yes.A change to the moderator temperature coefficient curve in the Technical Specification is anticipated as a result of the next refueling.

Scheduled date for submitting proposed licensing action and supporting information.

1/1/93 Important Licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, and new operating procedures.

The Unit 2, Cycle 5, reload should be typical of previous PVNGS cycles.The number of fuel assemblies')

In the core.241 b)In the spent fuel storage pool.288 Licensed spent fuel storage capacity.1329 Intended change in spent fuel storage capacity.None Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.2004 (18 Month reloads and full core discharge capability).

8

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t t

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K A Chavet A~ail 1992 04/01 04/30 0000 2400 Unit began the month in Mode 1;100%RX power.Ended the month in Mode 1;100%RX power.9 I l 1 1 t SHUTDOWNS AND POWER REDUCTIONS April 1992 DOCKET NO 50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K.A.Chavet No.Outage Method of Duration Shutting System Date Type Hours Reason Down Reactor LER No.Code Cause and Corrective Component Action to Codes Prevent Recurrence No reactor shutdowns or significant power reductions occurred during the month.~F-Forced S-Scheduled

~Reason: A-Equipment Failure(Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training&License Examination F-Administrative G-Operational Error H-Other (Explain)~Method: 1-Manual 2-Manual Scram 3-Automatic Scram 4-Continuation from Previous Month 5-Reduction of 20%or Greater in the Past 24 Hours 9-Other-(Explain) 4Exhibit F-Instructions for Preparation of the Data Entry Sheets for Licensee Event Report (LER)File (NUREG 0161)~Exhibit H-Same Source 10-I.

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY K.A, Chavee MONTH: April 1992 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1257 17 1255 1257 1255 1257 19 125 1254 20 1258 1254 1258 1255 22 1254 1254 23 1255 1254 24 1259 1254 25 1259 10 1253 26 1258 1253 27 1257 12 1253 28 1255 13 1254 29 1255 14 1253 30 1257 1253 16 1254 12

REFUELING INFORMATION DOCKET NO.50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY K A Chavet Scheduled date for next: refueling shutdown.09/19/92, 3rd refueling Scheduled date for restart following refueling.

11/28/92 Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

There are no Technical Specification changes associated with this reload.Scheduled date for submitting proposed licensing action and supporting information.

N/A Important Licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, and new operating procedures.

S A Technical Specification change request was submitted to the NRC on December 20, 1991, to allow the use of advanced zircaloy-based cladding alloys instead of Zircaloy-4 on up to 80 fuel rods in two fuel assemblies.

The number of fuel assemblies.

a)In the core.241 b)In the spent fuel storage pool.192 Licensed spent fuel storage capacity.1329 Intended change in spent fuel storage capacity.None Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.2005 (18 Month reloads and full core discharge capability).

13

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY K.A.Chavet April 1992 04/01 04/30 0000 2400 Unit began the month in Mode 1;100%RX power.Ended the month in Mode 1;100%RX power.14 lq SHUTDOWNS AND POWER REDUCTIONS April 1992 DOCKET NO 50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY K.A.Chavet No.Outage Method of Duration Shutting System Date Type Hours Reason Down Reactor LER No.Code Component Code~Cause and Corrective Action to Prevent Recurrence No reactor shutdowns or significant power reductions occurred during the month.~F-Forced S-Scheduled

~Reason: A-Equipment Failure(Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training 6 License Examination F-Administrative G-Operational Error H-Other (Explain)~Method: 1-Manual 2-Manual Scram 3-Automatic Scram 4-Continuation from Previous Month 5-Reduction of 20%or Greater in the Past 24 Hours 9-Other-(Explain)

'Exhibit F-Instructions for Preparation of the Data Entry Sheets for Licensee Event Report (LER)File (NUREG 0161)~Exhibit H-Same Source 15