ML17228A184

Monthly Operating Repts for May 1993 for St Lucie,Units 1 & 2.W/930614 Ltr

ML17228A184
Person / Time
Site:	Saint Lucie
Issue date:	05/31/1993
From:	Breen J, Sager D FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-93-152, NUDOCS 9306210399
Download: ML17228A184 (14)

Text

ACCEI ERA DOCUlVlENT DIST UTION SYSTEM REGULAT INFORMATION DISTRIBUTIO STEM (RIDS)

ACCESSION NBR:9306210399 DOC.DATE: (f@gQ NOTARIZED: NO DOCKET FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power & Light Co. 05000335

'0-389 St. Lucie Plant, Unit 2, Florida Power & Light Co. 05000389 AUTH. NAME AUTHOR AFFILIATION BREEN,J.J. Florida Power & Light Co.

SAGER,D.A. Florida Power & Light Co.

RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

Monthl o crating repts for May 1993 for St Lucie,units 1 &

2.W 930614 ltr.

DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Monthly Operating Report (per Tech Specs)

NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA 3 3 PD2-2 PD 1 1 NORRISiJ 1 1 INTERNAL: ACRS 10 10 AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 .RIL RPEB 1 1 NRR/DRPW/OEAB RGN2 1

1 1

1 REG F~ 01 1 1 EXTERNAL: EG&G BRYCE,J.H 1 1 NRC PDR 1 1 NSIC 1 1 NOTE TO. ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTBI CONTACI'HB DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEBDl TOTAL NUMBER OF COPIES REQUIRED: LTTR 24 ENCL 24

0 0 P,o. Box 8, Ft. Pierce, FL 34954-0128 14, 1993 9306210399 93053i PDR ADQCK 05000335 R PDR L-93-152 10 CFR 50.36 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Re: St Lucie Units 1 and 2

~

Docket Nos. 50-335 and 50-389 Monthl 0 eratin Re ort Attached are the May., 1993, Operating Status and Summary of Operating Experience Reports for St. Lucie Units 1 and 2.

Should there be any questions on this information, please contact us.

Very truly yours, D. A. ager Vic resident St. cie Plant DAS:JJB:kw cc: Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant Attachments DAS/PSL 5930-93 Ir j an FPL Group company

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO ~ 50-335 UNIT St Lucie 1 DATE COMPLETED BY J.J. Breen TELEPHONE 407 468-4248 MONTE MAY 1993 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 5/01/93 -2 5/02/93 -2 5/03/93 -4 5/04/93 -3 5/05/93 -4 5/06/93 -4 5/07/93 -3 5/08/93 -3 5/09/93 -3 5/10/93 -4 5/11/93 -4 5/12/93 -4 5/13/93 -4 5/14/93 -4 5/15/93 -4 5/16/93 -4 5/17/93 -4 5/18/93 -4 5/19/93" -4 5/20/93 -4 5/21/93 -4 5/22/93 -5 5/23/93 -6 5/24/93 -20 5/25/93 . -21 5/26/93 -26 5/27/93 -30 5/28/93 -30 5/29/93 -30 5/30/93 -28 5/31/93 -10

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OPERATING DATA REPORT DOCKET NO DATE COMPLETED BY J. J. BREEN TELEPHONE 407/468/4248 OPERATING STATUS

1. UNIT NAME: ST. LUCIE UNIT 1

2. REPORTING PERIOD: MAY 1993

3. LICENSED THERMAL POWER (MWT): 2700

4. NAMEPLATE RATING (GROSS MWE): 850

5. DESIGN ELECTRICAL RATING (NET MWE): 830

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 872

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE): 839

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBER 3 THROUGH 7)

SINCE LAST REPORT, GIVE REASONS:

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE)

10. REASONS FOR RESTRICTIONS, IF ANY:

MONTHLY -YTD- CUMULATIVE

11. HOURS IN REPORT PERIOD: 744 3623 144143. 0

12. NUMBER OF HOURS REACTOR WAS CRITICAL 32.4 2121.3 110791.9

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 205.3

14. HOURS GENERATOR ON-LINE 0.0 2088.4 109763.9

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 39.3

16. GROSS THERMAL ENERGY GENERATED (MWH) 0 5558385 283894095

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 0 1848150 93708050

18. NET ELECTRICAL ENERGY GENERATED (MWH) -6703 1744324 88570194

19. UNIT SERVICE FACTOR 0.0 57.6 76.1

20. UNIT AVAILABILITYFACTOR 0.0 57.6 76.2

21. CAPACITY FACTOR (USING MDC NET) 0.0 57.4 75.7 22 'APACITY FACTOR (USING DER NET) 0.0 58.0 74.9

23. UNIT FORCED OUTAGE RATE 0.0 0.0 4.0

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS UNIT 1 SHUTDOWN AT THE END OF THE MONTH

25. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: 6/14/93

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-335 UNIT NAME ST L IE NIT I DATE JUII 1e I%

COMPLETED BY J. J. BREEN PHLHPHOHH HPP 468-4248 REPORT MONTH MAY I 3 No. Date Type Duration (Hours)

Reasons Method of Shutting Licensee Event Report System Code'omponent Code'ause & Corrective Action to Down ¹ Prevent Recurrence Reactor 930329 LER 93%5 VESSEL Unit 1 was shutdown for refueling. During post refueling outage low power physics testing it was-determined that a CEA was potentially unlatched from its drive mechanism.

F Fore<<d Reason Method Exhibit G - Instructions for S Scheduled A - +uipmcnt failure (explain) I - hfanual Preparation of Data Entry B - Maintenance or Test 2 - Manual Scram Sheets Licensee Event Report C - Refueling 3 - Automatic Scram (LER) File (NUREGWI6l)

D - Regulatory restriction 4 - Continued E - Operator Training dc License Examination 5 - Load Reduction F - Administrative 9 - Other (Explain) Exhibit I - Same Source G - Operational Error (Expalin)

H - Other (Explain)

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SUMMARY

OF OPERATING EXPERIENCE DOCKET NO ~ 50-335 UNIT St. Lucie DATE JIJN 4 1N COMPLETED BY Z.J'. Breen TELEPHONE 407 468-4248 REPORT MONTH MAY 1993 Unit 1 was in a refueling outage for the month of May, 1993. On May 30, 1993, during post refueling outage low power physics testing, it was determined that a CEA was potentially unlatched from its drive mechanism. The reactor was shutdown, cooled down and the reactor head was removed for inspection. The reactor was shutdown for the remainder of the month. This event will be reported by Licensee Event Report (LER) 93-05.

Xn accordance with the requirements of Technical Specification 6.9.1.6, there were no challenges to the PORVs or safety valves during the report period.

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO ~ 50-389 DATE JUH i4 1N COMPLETED BY J'.J'. Breen TELEPHONE 407 468-4248 MONTH MAY 1993 DAY AVERAGE DAILY POWER LEVEL (Mwe-Net) 5/01/93 851 5/02/93 850 5/03/93 851 5/04/93 848 5/05/93 847 5/06/93 847 5/07/93 843 5/08/93 845 5/09/93 844 5/10/93 844 5/11/93 845 5/12/93 846 5/13/93 844 5/14/93 844 5/15/93 843 5/16/93 836 5/17/93 737 5/18/93 576 5/19/93 582 5/20/93 584 5/21/93 270 5/22/93 -34 5/23/93 -34 5/24/93 -33 5/25/93 -34 5/26/93 95 5/27/93 688 5/28/93 733 5/29/93 842 5/30/93 848 5/31/93 849

OPERATING DATA REPORT DOCKET NO 50 389 DATE ~gl, i4. N3.

COMPLETED BY J. J. BREEN TELEPHONE 407/468/4248 OPERATING STATUS

1. UNIT NAME: ST. LUCIE UNIT 2

2. REPORTING PERIOD: MAY 1993

3. LICENSED THERMAL POWER (MWT): 2700

4. NAMEPLATE RATING (GROSS MWE): 850

5. DESIGN ELECTRICAL RATING (NET MWE): 830

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 882

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE): 839

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBER 3 THROUGH 7)

SINCE LAST REPORT, GIVE REASONS:

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE)

10. REASONS FOR RESTRICTIONS, IF ANY:

MONTHLY -YTD- CUMULATIVE

11. HOURS IN REPORT PERIOD: 744 3623 86040.0

12. NUMBER OF HOURS REACTOR WAS CRITICAL 625.2 1634.8 72039.1

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

14. HOURS GENERATOR ON-LINE 620.7 1621.0 70826.5

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 1574263 4199672 185564674

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 516980 1387770 61867420

18. NET ELECTRICAL ENERGY GENERATED (MWH) 484716 1293940 58485682

19. UNIT SERVICE FACTOR 83.4 44.7 82.3

20. UNIT AVAILABILITYFACTOR 83.4 44.7 82.3

21. CAPACITY FACTOR (USING MDC NET) 77.7 42.6 82.2

22. CAPACITY FACTOR (USING DER NET) 78.5 43.0 82.4 23 UNIT FORCED OUTAGE RATE 16.6 55.3 7.8

'4.

SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS

25. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP:

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-389 UNIT NAME T LU IE NIT 2 DATE 4 LN COMPLETED BY J. J. BREEN THLHPHHH8 L4044604248 REPORT MONTH MAY 1 3 Date Type Duration Reason~ Method of Licensee Event System Component Cause & Corrective No. (Hours) Shutting Report ¹ Codes Codes Action to Down Prevent Recurrence Reactor 6 930517 0.0 N/A HC HTEXCH Unit 2 was downpowered to approximately 75%

power to investigate a potential condenser tube leak.

6 930521 LER 93%7 ELECON Unit 2 was manually tripped when several Control Element Assemblies dropped due to an electrical grounding problem.

7 930526 0.0 B N/A HA VALVEX Unit 2 was held at approximately 20% power to repair a DEH leak in govenor valve ¹2.

8 930527 0.0 B N/A Unit 2 was held at approximately 80% to 85%

power for waterbox cleaning.

F Forced Reason Method Exhibit G - Instructions for S Scheduled A - Equipment failure (explain) I - Manual Preparation of Data Entry B - Maintcnancc or Test 2 - Manual Scram Sheets Licensee Event Report C - Refueling 3 - Automatic Scram (LER) Fdc (NUREG416l)

D - Regulatory restriction 4 - Continued E - Operator Training ds License Examination 5 - Load Reduction F - Adnunistrative 9 - Other (Explain) Exhibit 1 - Same Source G - Operational Error (Expalin)

H - Other (Explain)

SUMMARY

OF OPERATING EXPERIENCE DOCKET N0% 50-389 UNIT St. Lucie 2 DATE COMPLETED BY J.J. Breen TELEPHONE 407 468-4248 REPORT MONTH MAY 1993 From May 1, 1993, until May 16, 1993, Unit 2 was at 100~ power. On May 17, 1993, Unit 2 was downpowered to approximately 754 power to investigate a potential condenser tube leak. On May 21, 1993, Unit 2 was being held at approximately 724 power when the Unit was manually tripped due to the dropping of several Control Element Assemblies (CEA's). It was determined that the dropping of the CEA's were caused by an electrical grounding problem; this event will be reported by Licensee Event Report (LER) 93-07. On May 26, 1993, the CEA electrical grounding problem was corrected, the potential condenser tube leak disappeared and the Unit was placed online. The Unit was held at approximately 204 power to repair a DEH leak on governor valve g2 of the turbine. Repairwork was completed on May 26, 1993, and Unit 2 was increased in power. From May 27, 1993, until May 28, 1993, Unit 2 was held at approximately 804 to 854 power for waterbox cleaning. On May 29, 1993, Unit 2 was at 100% power and remained there for the rest of the month.

In accordance with the requirements of Technical Specification 6.9.1.6, there were no challenges to the PORVs or safety valves during the report period.

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