ML17305B642

Monthly Operating Repts for Jun 1991 for PVNGS Units 1,2 & 3.W/910712 Ltr

ML17305B642
Person / Time
Site:	Palo Verde
Issue date:	06/30/1991
From:	Chavet K, James M. Levine ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
254-01611-JML-K, 254-1611-JML-K, NUDOCS 9107150341
Download: ML17305B642 (32)

Text

ACCELERATED DI UTION DEMONS TION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9107150341 DOC.DATE:~~~ NOTARIZED: NO DOCKET 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 CHAVETjK.A.

'UTHOR AFFILIATION Arizona Public Service Co. (formerly Arizona Nuclear Power LEVINE,J.M. Arizona Public Service Co. (formerly Arizona Nuclear Power RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

Mo -yo ting repts for Jun 1991 for PVNGS Units 1,2 D

.W/910712 ltr.

DXSTRIBUTION CODE: IE24D COPIES RECEXVED:LTR l ENCL l SIZE:

Monthly Operating Report (per Tech Specks &'ITLE:

NQTES:STANDARDIZED PLANT 05000528 Standardized plant. 05000529 A Standardized plant. 05000530 RECIPIENT COPIES RECIPIENT COPIES D ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD5 LA 3 3 PD5 PD 1 1 TRAMMELL,C 1 1 THOMPSON,M 1 1 INTERNAL: ACRS 10 10 AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 BR~XQQ LPEB10 1 1 NRR/DOEA/OEAB 1 1 EG FILE Ol 1 1 RGN5 1 1 EXTERNAL EG&G BRYCE i J ~ H 1 1 NRC PDR 1 1 NSIC 1 1 NOTES: 1 1 D

A D

D NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPXES REQUIRED: LTTR 26 ENCL 26

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Arizona Public Service Company PALO VERDE NUCLEAR GENERATING STATION P.O. BOX 52034 ~ PHOENIX, ARIZONA85072-2034 JAMES M. LEVINE 254-01611- JML/KAC VICE PRESIDENT NUCLEAR PRODUCTION July 12, 1991 Docket Nos. STN 50-528/529/530 Document Control Desk U. S. Nuclear Regulatory Commission Mail Station Pl-37 Washington, D.C. 20555

Subject:

Palo Verde Nuclear .Generating Station (PVNGS)

Units 1, 2, and 3 Monthly Operating Reports for June 1991 File: 91-024-404 Attached are the Monthly Operating Reports for June 1991, prepared and submitted pursuant to Specification 6.9.1.6 of Appendix A (Technical Specifications) to the Palo Verde Nuclear Generating Station, Units 1, 2, and 3 Operating Licenses. By copy of this letter, we are also forwarding the Monthly Operating Reports to the Regional Administrator of the Region V Office.

If you 340-4718.

have any questions, please contact Mr. Kent A. Chavet, at (602)

Very truly yours,'ML/KAC/kac Attachment cc: J. B. Martin (all w/attachment)

D. H. Coe A. C. Gehr A. H. Gutterman INPO Records Center Utility Data Institute 91071503@i 910630

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ADOCK 05000528 PDR z<av I(

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NRC MONTHLY OPERATING REPORT DOCKET NO. 50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY K.A. Chavet OPERATING STATUS

1. Unit Name: Palo Verde Nuclear Generatin Station Unit 1

2. Reporting Period: June 1991

3. Licensed Thermal Power (MWt): 3800

4. Nameplate Rating (Gross MWe): 1403

5. Design Electrical Rating (Net MWe): 1270

6. Maximum Dependable Capacity (Gross MWe): 1303

7. Maximum Dependable Capacity (Net MWe): 1221

8. If Changes Occur In Capacity Ratings (Item Numbers 3 Through 7)

Since Last Report, Give Reasons: N A

9. Power Level to Which Restricted, If Any (Net MWe): None

10. Reasons For Restrictions, If Any: N A This Month Yr.-to-Date Cumulative 11 Hours in Reporting Period 720 344 47 520 12 Number of Hours Reactor Was Critical 720.0 3 501 5 24 961 7 13 Reactor Reserve Shutdown Hours 0.0 0.0 0.0 14 Hours Generator On-Line 720 0 3 492.9 24 246.5 15 Unit Reserve Shutdown Hours 0 0 0.0 0 0 16 Gross Thermal Energy Generated (MWH) 2 725 393 13 184 607 88 578 708 17 Gross Electrical Energy Generated (MWH) 946 400 4 599 300 30 771 900 18 Net Electrical Energy Generated (MWH) 894 536 4 334 226 28 846 878 19 Unit Service Factor 100.0% 80.4% 51.0%

20 Unit Availability Factor 100.0% 80.4a 51.0%

21 Unit Capacity Factor (Using MDC Net) 101 8% 81.7a 49.7a 22 Unit Capacity Factor (Using DER Net) 97 8a 78.6a 47.8%

23 Unit Forced Outage Rate 0.0s 0.0@ 22,3 24 Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each):

N A

25. If Shutdown At End of Report Period, Estimated Date of Start-up:

N A Forecast Achieved INITIAL CRITICALITY ~05 85 ~05 25 85 INITIAL ELECTRICITY 06 85 06/610 85 COMMERCIAL OPERATION 11 85 01 28 86 1

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY K.A. Chavez MONTH: June 1991 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1248 1247 1249 18 1246 1248 19 1246 1246 20 1247 1248 1247 1248 22 1248 1246 23 1248 1247 24 1247 1249 25 1247 10 1249 26 1116 124 27 1245 12 1246 28 1245 13 1246 29 1246 14 1246 30 1245 15 1248 16 1246 2

l'I REFUELING INFORMATION DOCKET NO. 50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY K.A, Chavet

1. Scheduled date for next refueling shutdown.

02/01/92, 3rd refueling.

2. Scheduled date for restart following refueling.

04/11/92

3. Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

The need for a Technical Specification change or other license amendment has not yet been determined.

4. Scheduled date for submitting proposed licensing action and supporting information.

N/A

5. 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.

UlC4 is typical of PVNGS reload cycles.

6. The number of fuel assemblies.

a) In the core. 241 b) In the spent fuel storage pool. 188

7. Licensed spent fuel storage capacity. 1329 Intended change in spent fuel storage capacity. None

8. 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).

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO. 50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY K.A. Chavet June 1991 06/01 00:00 Unit began the month in Mode 1, 100% RX power.

06/26 01:32 Commenced RX power reduction to 80% due to the Core Operating Limit Supervisory System (COLSS) being inoperable.

06/26 13:25 RX power back at 1008 ~

06/30 24:00 Unit ended the month in Mode 1, 100$ RX power.

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SHUTDOWNS AND POWER REDUCTIONS June 1991 DOCKET NO 50-528 UNIT NAME PUNGS-1 DATE COMPLETED BY K.A. Chavet Outage Method of Cause and Corrective Duration Shutting System Component Action to No. Date Type Hours Reason Down Reactor LER No. Code Code~ Prevent Recurrence 91/02 06/26/91 S N/A N/A N/A N/A Power reduction to 80%

to the Core Operating Limit Supervisory System being inoperable.

~F-Forced ~Reason: ~Method: 4Exhibit F-Instructions S-Scheduled A-Equipment Failure(Explain) 1-Manual for Preparation of the Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuation from (NUREG 0161)

E-Operator Training & License Previous Month Examination 5-Reduction of 20% or F-Administrative Greater in the Past ~Exhibit H-Same Source G-Operational Error 24 Hours H-Other (Explain) 9-Other-(Explain)

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NRC MONTHLY OPERATING REPORT DOCKET NO. 50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K A. Chavet OPERATING STATUS

1. Unit Name: Palo Verde Nuclear Generatin Station Unit 2

2. Reporting Period: June 1991

3. Licensed Thermal Power (MWt): 3800

4. Nameplate Rating (Gross MWe): 1403

5. Design Electrical Rating (Net MWe): ~12 0

6. Maximum Dependable Capacity (Gross MWe): 1303

7. Maximum Dependable Capacity (Net MWe): 1221

8. If Changes Occur In Capacity Ratings (Item Numbers 3 Through 7)

Since Last Report, Give Reasons: N A

9. Power Level to Which Restricted, If Any (Net MWe): None 10 Reasons For Restrictions, If Any: N A This Month Yr.-to-Date Cumulative 11 Hours in Reporting Period 720 4 344 41 904 12 Number of Hours Reactor Was Critical 720 0 4 344.0 28 971.3

13. Reactor. Reserve Shutdown Hours 0 0 0 0 0 0

14. Hours Generator On-Line 720.0 4 3440 28 367.4

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 2 734 422 16 452 791 104 174 192 17 Gross Electrical Energy Generated (MWH) 952 300 5 749 800 36 377 370 18 Net Electrical Energy Generated (MWH) 898 162 5 428 166 34 053 195 19 Unit Service Factor 100 0 100 0% 67,7s 20 Unit Availability Factor 100.0 100.0% 67.7a 21 Unit Capacity Factor (Using MDC Net) 102.2% 102.3% 66.6a 22 Unit Capacity Factor (Using DER Net) 98.2a 64 0 23 Unit Forced Outage Rate 0.0a 0.0% 7.2%

24 Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each):

Refuelin outa e October 17 1991 0 da s

25. If Shutdown At End of Report Period, Estimated Date of Start-up:

N A Forecast Achieved INITIAL CRITICALITY ~03 86 04/618 86 INITIAL ELECTRICITY ~06 86 ~05 20 86 COMMERCIAL OPERATION ~11 86 ~09 19 86 6

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K,A. Chavet MONTH: June 1991 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1248 1246 1249 18 1245 1246 19 1244 1247 20 1242 1245 21 1244 1242 22 1242 1243 23 1244 1243 24 1243 1244 25 1245 10 1244 26 1245 1242 27 1244 1240 28 1247 13 1237 29 1238 14 1239 30 1249 1241 1245

REFUELING INFORMATION DOCKET NO. 50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K A Chavet

1. Scheduled date for next refueling shutdown.

10/17/91, 3rd refueling.

2. Scheduled date for restart following refueling.

12/26/91

3. Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment' Preliminary analyses indicate that no proposed Technical Specification change or other license amendment will be required as a result of the next refueling.

4. Scheduled date for submitting proposed licensing action and supporting information.

08/91

5. 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.

U2C4 is typical of PVNGS reload cycles.

6. The number of fuel assemblies.

a) In the core. 241 b) In the spent fuel storage pool. 204

7. Licensed spent fuel storage capacity. 1329 Intended change in spent fuel storage capacity. None

8. 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).

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO. 50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K.A. Chavet June 1991 06/01 00:00 Unit began the month in Mode 1, 100% RX power.

06/30 24:00 Unit ended the month in Mode 1, 100% RX power.

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SHUTDOWNS AND POWER REDUCTIONS June 1991 DOCKET NO. 50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY K.A. Chavet Outage Method of Cause and Corrective Duration Shutting System Component Action to No. Date Type Hours Reason Down Reactor LER No. Code~ Code~ Prevent Recurrence No Reactor Shutdowns or significant power reductions occurred during the month.

~F-Forced ~Reason: ~Method: 4Exhibit F-Instructions S-Scheduled A-Equipment Failure(Explain) 1-Manual for Preparation of the Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuation from (NUREG 0161)

E-Operator Training & License Previous Month Examination 5-Reduction of 20% or F-Administrative Greater in the Past sExhibit H-Same Source G-Operational Error 24 Hours H-Other (Explain) 9-Other-(Explain)

NRC MONTHLY OPERATING REPORT DOCKET NO. 50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY K.A. Chavet OPERATING STATUS

1. Unit Name: Palo Verde Nuclear Generatin Station Unit 3

2. Reporting Period: June 1991

3. Licensed Thermal Power (MWt): 3800

4. Nameplate Rating (Gross MWe): 1403

5. Design Electrical Rating (Net MWe): ~12 0 Maximum Dependable Capacity (Gross MWe): 1303

7. Maximum Dependable Capacity (Net MWe): 1221

8. If Changes Occur In Capacity Ratings (Item Numbers 3 Through 7)

Since Last Report, Give Reasons: N A

9. Power Level to Which Restricted, If Any (Net MWe): None

10. Reasons For Restrictions, If Any: N A This Month Yr.-to-Date Cumulative

11. Hours in Reporting Period 720 4 344 30 480

12. Number of Hours Reactor Was Critical 605 1 2 416.4 19 996.1

13. Reactor Reserve Shutdown Hours 0 0 0 0 0 0

14. Hours Generator On-Line 570 8 2 347 6 19 670.8

15. Unit Reserve Shutdown Hours 0.0 0,0 0,0

16. Gross Thermal Energy Generated (MWH) 1 861 693 8 298 390 71 904 617

17. Gross Electrical Energy Generated (MWH) 645 100 2 908 700 25 217 000

18. Net Electrical Energy Generated (MWH) 597 134 2 724 920 23 724 395

19. Unit Service Factor 79 3 54 0 64 5a

20. Unit Availability Factor 79 3 54.0% 64 5a

21. Unit Capacity Factor (Using MDC Net) 67 9s 51.4a 63 7a

22. Unit Capacity Factor (Using DER Net) 65.3a 49.4% 61.3a

23. Unit Forced Outage Rate 20.5%* 11.0@* 9.la*

24. Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each):

N A 25 If Shutdown At End of Report Period, Estimated Date of Start-up:

Unit ended refuelin outa e on 06 03 91.

Forecast Achieved INITIAL CRITICALITY ~07 87 10/D25 87 INITIAL ELECTRICITY 0 87 ll 28 87 01/108 88 COMMERCIAL OPERATION ~09 87

• Final analysis of the refueling outage is not complete. The forced outage rates may be lower than reported.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY K.A. Chavet MONTH: June 1991 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 17 1262 18 1262 19 509 115 20 345 21 781 22 836 23 644 844 24 1258 929 25 1261 10 1230 26 1254 1248 27 1248 12 1246 28 1262 13 1257 29 1262 14 1261 30 1260 15 1262 1261

REFUELING INFORMATION DOCKET NO. 50-530 UNIT NAME PVNGS-3 COMPLETED BY K.A. Chalet

1. Scheduled date for next refueling shutdown.

Unit 3 was completing the refueling outage at the end of the month. The next refueling outage is scheduled for 09/15/92.

2. Scheduled date for restart following refueling.

The scheduled restart date for the current refueling outage was 05/26/91. The actual restart date was 06/03/91. The restart date for the next refueling outage is 11/14/92.

3. Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

The need for a Technical Specification change or other license amendment has not yet been determined.

4. Scheduled date for submitting proposed licensing action and supporting information.

N/A

5. 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.

U3C4 is typical of PVNGS reload cycles.

6. The number of fuel assemblies.

a) In the core. 241 b) In the spent fuel storage pool. 192

7. 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).

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO. 50-530 DATE COMPLETED BY K.A Chavet June 1991 06/01 00'00 Unit began the month in Mode 2, low power physics testing.

06/01 07:43 Entered Mode 3 for CEA troubleshooting and maintenance.

06/02 16:38 Entered Mode 2, continuation of low power physics testing.

06/03 01:38 Entered Mode l.

06/03 ll:32 Synchronized main generator to the grid. Refueling outage ended.

06/03 15:54 Manually tripped turbine/generator for planned overspeed testing and valve tightness testing.

06/03 18:11 Synchronized main generator to the grid, increased power to the 20% testing plateau.

06/05 03:29 Stopped power increase at 36% RX power due to CPC 'C'ailure.

06/05 19:30 Commenced RX power ascension to the 70% testing plateau.

06/09 12:52 Commenced RX power ascension to 100% RX power.

06/10 12:56 RX power at 100%.

06/19 10:02 Inadvertent CSAS (Containment Spray Actuation Signal) during performance of surveillance test.

06/19 10:04 RX manually tripped after verification of CSAS.

06/20 05:31 Entered Mode 4.

06/20 13:08 Entered Mode 5 to troubleshoot cause of CSAS.

06/22 00:24 Entered Mode 4.

06/22 04:28 Entered Mode 3.

06/22 20:00 Entered Mode 2.

06/22 22:27 Entered Mode 1.

06/23 Ol:00 Synchronized generator to the grid.

06/23 23:12 RX power at 100%.

06/30 24:00 Unit ended the month in Mode 1, 100% RX power.

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SHUTDOWNS AND POWER REDUCTIONS June 1991 DOCKET NO 50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY K.A. Chavet Outage Method of Cause and Corrective Duration Shutting System Component Action to No. Date Type Hours Reason Down Reactor LER No. Code~ Codes Prevent Recurrence 91/03 03/16/91 S 59.5 N/A N/A N/A Conclusion of 2nd refuel outage. Outage lasts 1906.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

91/04 06/19/91 F 87.4 N/A N/A N/A Faulty switch caused inadvertent Containment Spray Actuation Signal during surveillance testing. Manually tripped reactor per procedure after verifying containment spray.

~F-Forced ~Reason: ~Method: 4Exhibit F-Instructions S-Scheduled A-Equipment Failure(Explain) 1-Manual for Preparation of the Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuation from (NUREG 0161)

E-Operator Training & License Previous Month Examination 5-Reduction of 20% or F-Administrative Greater in the Past sExhibit H-Same Source G-Operational Error 24 Hours H-Other (Explain) 9-Other-(Explain) 15-