ML17228A326

Monthly Operating Repts for Sept 1993 for St Lucie Units 1 & 2.W/931012 Ltr

ML17228A326
Person / Time
Site:	Saint Lucie
Issue date:	09/30/1993
From:	Sager D, Charlotte White FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-93-263, NUDOCS 9310190367
Download: ML17228A326 (15)

Text

ACCELERATED DOCUMENT DISTRIBUTION SYSTEM REGULA INFORMATION DISTRIBUTION YSTEM (RIDS)

ACCEGSION NBR:9310190367 DOC.DATE: %@59",El+NOTARIZED: NO DOCKET FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power & Light Co. 05000335

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50-389 St. Lucie Plant, Unit 2, Florida Power & Light Co. 05000389 R AUTH. NAME AUTHOR AFFILIATION WHITE,C.D. Florida Power 6 Light Co.

SAGER,D.A. Florida Power 6 Light Co.

RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

Monthl o crating repts for Sept 1993 for St Lucie Units 1 a 2.W 931012 tr.

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 NORRIS,J 1 1 INTERNAL: ACRS 10 10 AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 NR DSRS/OEAB 1 1 NRR/DRIL/RPEB 1 1 G FIL 01 1 1 RGN2 1 1 EXTERNAL: EGS(G BRYCE,J.H 1 1 NRC PDR 1 1 NSIC 1 1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT TPIE DOCUMENT CONTROL DESK, ROOM I'1-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 24 ENCL 24

P.O. Box 128, Ft. Pierce, FL 34954-0128

,October 12, 1993 L-93-263 10 CFR 50.36 93101903b7 930930 PDg ADOCK 05000335 PDR R .

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 September, 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. ger Vice r sident St. Lu ie Plant DAS/CDW/kw cc: Stewart D. Ebneter, Regional Administrator, Region Senior Resident Inspector, USNRC, St. Lucie Plant II, USNRC Attachments DAS/PSL 81005-93 an FPL Group company

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO ~ . 50-335 UNIT St. Lucie gi DATE 10/12/93 COMPLETED BY C. D. WHITE TELEPHONE: (407) 468-4248 MONTH SEPTEMBER 1993 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 9/01/93 475 9/02/93 800 9/03/93 837 9/04/93 837 9/05/93 839 9/06/93 836 9/07/93 834 9/08/93 832 9/09/93 835 9/10/93 835 9/11/93 838 9/12/93 834

'9/13/93 836 9/14/93 838 9/15/93 839 9/16/93 839 9/17/93 838 9/18/93 161 9/19/93 58 9/20/93 236 9/21/93 236 9/22/93 -2 9/23/93 -34 9/24/93 89 9/25/93 299 9/26/93 282 9/27/93 ,32 9/28/93 396 9/29/93 711 9/30/93 658

II OPERATING DATA REPORT DOCKET NO 50 335 DATE 10/12/93 COMPLETED BY C. D. WHITE TELEPHONE 407/468/4248 OPERATING STATUS

1. UNIT NAME: ST. LUCIE UNIT 1

2. REPORTING PERIOD:SEPTEMBER 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 'EASONS FOR RESTRICTIONSi IF ANY MONTHLY -YTD- CUMULATIVE

11. HOURS IN REPORT PERIOD: 720 6551 147071.0

12. NUMBER OF HOURS REACTOR WAS CRITICAL 626.3 4650.5 113321.1

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 205.3

14. HOURS GENERATOR ON-LINE 579.3 4470.5 112145.9

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 39.3

16. GROSS THERMAL ENERGY GENERATED (MWH) 1351961 11614065 289949775

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 436720 3836930 95696830

18. NET ELECTRICAL ENERGY GENERATED (MWH) 406717 3615077 90440947

19. UNIT SERVICE FACTOR 80.5 68.2 76.3

20. UNIT AVAILABILITYFACTOR 80.5 68.2 76.3

21. CAPACITY FACTOR (USING MDC NET) 67.3 65.8 75.7

22. CAPACITY FACTOR (USING DER NET) 68.1 66 ' 75.0

23. UNIT FORCED OUTAGE RATE 19.5 3 ' 4.0

24. 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.: 50-335 UNIT NAME: ST LUCIE UNIT 1 DATE: 10/12/93 COMPLETED BY C. D. WHITE TELEPHONE: (407) 468-4248 REPORT MONTH SEPTEMBER 1 93 No. Date Type'uration Reason~ Method of Licensee System Component Cause & Corrective (Hours) Shutting Event Report Code4 Code Action to Down ¹ Prevent Recurrence Reactor 10 930901 0.0 B N/A HF PUMPXX Unit 1 decreased power due to a circulating water pump low lube water flow alarm. Unit 1 was returned to 100% power on September 2, 1993.

930918 LER 93-07 HF HTEXCH Unit 1 reduced power due to high backpressure caused by excessive jellyfish intrusion.

12 930925 3.93 B N/A HB VALVEX Unit 1 reduced power to repair ¹2 governor valve.

930925 30.57 N/A HF HTEXCH Unit 1 reduced power due to high backpressure caused by excessive jellyfish intrusion.

F Forced Reason Method Exhibit G - Instructions for S Scheduled A - Equipment failure (explain) 1 - Manual Preparation of Data Entry B - Maintenance or Test 2- Manual Scram Shccts Liccnsce Event Report C - Refueling 3 - Automatic Scram (LER) File (NUREG4161)

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

H - Other (Explain)

UNIT SHVHOOWNS AND POWER REDUCTIONS DOCKET NO NAME 'NIT ST LUCIE UNIT 1 DATE: 10/12/93 TELEPHONE'0-335 COMPLETED BY: C. D. WHITE (407) 468-4248 REPORT MONTH SEPTEMBER 1 3 No. Date Duration Reason~ Method of Licensee System Component Cause 8c Corrective (Hours) Shutting Event Report Codes Codes Action to Down Prevent Recurrence Reactor 14 930930 0.0 B N/A PUMPXX Unit 1 reduced power to investigate problems with the 1B Main Feedwater Pump.

F Forced Reason Method Exhibit G - Instructions for S Schcdulcd A - Equipmcnt failure (explain) 1 - Manual Preparation of Data Entry B - Maintcnancc or Test 2 - Manual Scram Sheets Licensee Event Rcport C - Refueling 3 - Automatic Scram (LER) File (NUREG-0161)

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

H - Other (Explain)

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO.: 50-335 UNIT: St. Lucie g1 DATE 10/12/93 COMPLETED BY: C~ D WHITE TELEPHONE: (407) 468-4248 REPORT MONTH SEPTEMBER 1993 On September 1, 1993, Unit 1 remained at reduced power due to a circulating water pump low lube water flow alarm. This power reduction was a continuation from August 30, 1993. The unit was returned to full power on September 2, 1993. On September 18, 1993, Unit 1 reduced power due to high backpressure caused by excessive jellyfish intrusion. The unit held at 304 power on September 19, 1993, for chemistry testing and was taken off-line on September 22 and September 23, 1993, again for high backpressure due to jellyfish intrusion. Unit 1 remained at reduced power on September 25, 1993 to repair the g2 governor valve. On September 27, 1993, the unit again held at 304 power for chemistry testing. The unit remained at reduced power through September 29, 1993, due to jellyfish intrusion and on September 30, 1993 reduced power to investigate problems with the 1B main feedwater pump.

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.

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO ~ . 50-389 UNIT0 St. Lucie g2 DATE 10/12/93 COMPLETED BY: CD D .WHITE TELEPHONEi (407) 468-4248 MONTH SEPTEMBER 1993 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 9/01/93 783 9/02/93 771 9/03/93 764 9/04/93 746 9/05/93 739 9/06/93 686 9/07/93 384 9/08/93 393 9/09/93 525 9/10/93 674 9/11/93 588 9/12/93 660 9/13/93 816 9/14/93 832 9/15/93 833 9/16/93 831 9/17/93 830 9/18/93 829 9/19/93 823 9/20/93 823 9/21/93 820 9/22/93 587 9/23/93 632 9/24/93 747 9/25/93 743 9/26/93 472 9/27/93 308 9/28/93 362 9/29/93 362 9/30/93 236

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OPERATING DATA REPORT DOCKET NO 50 389 DATE 10/12/93 COMPLETED BY C. D. WHITE TELEPHONE 407/468/4248 OPERATING STATUS

1. UNIT NAME: ST. LUCIE UNIT 2

2. REPORTING PERIOD:SEPTEMBER 1993

3. LICENSED THERMAL POWER (MWT): 2700 NAMEPLATE RATING (GROSS MWE): 850

5. DESIGN ELECTRXCAL RATING (NET MWE): 830

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 882

7. MAXIMUM DEPENDABLE CAPACXTY (NET MWE): 839

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

SINCE LAST REPORT, GIVE REASONS:

9. I POWER LEVEL TO WH CH RESTRXCTED g I F ANY (NET MWE)

10. REASONS FOR RESTRICTIONS, IF ANY:

MONTHLY -YTD- CUMULATIVE

11. HOURS IN REPORT PERIOD: 720 6551 88968.0

12. NUMBER OF HOURS REACTOR WAS CRITICAL 720.0 4562.8 74967.1

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

14. HOURS GENERATOR ON-LINE 720.0 4505.8 73711.2

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0' 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 1569594 11317091 192682093

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 502690 3684490 64164140

18. NET ELECTRICAL ENERGY GENERATED (MWH) 470362 3457719 60649461

19. UNIT SERVICE FACTOR 100.0 68.8 82.9

20. UNIT AVAILABILITYFACTOR, 100.0 68.8 82.9

21. CAPACITY FACTOR (USING MDC NET) 77.9 62.9 82.3

22. CAPACITY FACTOR (USING DER NET) 78.7 63.6 82.7

23. UNIT FORCED OUTAGE RATE 0.0 31 ' 7.5

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS CYCLE 8 REFUELING OUTAGE SCHEDULED TO BEGIN FEBRUARY 15, 1994.

25. IF I SHUT DOWN AT END OF REPORT PER IOD g EST MATED DATE OF STARTUP

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-389 UNIT NAME: ST LUCIE UNIT 2 DATE: 10/12/93 COMPLETED BY: C. D. WHITE TELEPHONE: (407) 468-4248 REPORT MONTH SEPTEMBER 1 3 No. Date Type Duration Reason~ Method of Licensee System Component Cause & Corrective (Hours) Shutting Event Report Codes Codes Action to Down Prevent Recurrence Reactor 16 930906 0.0 B N/A HF HTEXCH Unit 2 reduced power for waterbox cleaning.

17 930911 0.0 B N/A FILTER Unit 2 reduced power due to failure of the 2A1, 2A2, and 2B1 circulating water pump traveling screens and high backpressure.

18 930922 0.0 N/A HF HTEXCH Unit 2 reduced power due to high backpressure caused by excessive jellyfish intrusion.

19 930926 0.0 N/A HF HTEXCH Unit 2 reduced power due to high backpressure caused by excessive jellyfish intrusion.

F Forced Reason Method Exhibit G - Instructions for S Schcdulcd A - Equipmcnt failure (explain) 1 - Manual Preparation of Data Entry B - Maintenance or Test 2- Manual Scram Sheets Liccnsce Event Report C - Rcfucling 3 - Automatic Scram (LER) File (NUItEG4161)

D - Regulatory restriction 4 - Continued E - Operator Training 8c License Examination 5 - Load Reduction F - Administrative 9 - Other (Explain) Exhibit 1 - Same Source G - Operational Error (Explain)

H - Other (Explain) tslss7 FPL

UNIT SHt3TDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-389 UNIT NAME: ST LUCIE UNIT 2 DATE: 10/12/93 COMPLETED BY: C. D. WHITE TELEPHONE: (407) 468-4248 REPORT MONTH SEPTEMBER 1 93 No. Date Type Duration Reasons Method of Licensee System Code'omponent Cause A Corrective (Hours) Shutting Event Report Codes Action to Down ¹ Prevent Recurrence Reactor 20 930927 0.0 B N/A HF HTEXCH Unit 2 reduced power to repair a condenser tube leak and for waterbox cleaning.

21 930930 0.0 B N/A HF FILTER Unit 2 reduced power to due to a leak in the screen wash system.

F Forced Reason Method Exhibit G - Instructions for S Scheduled A - Equipment failure (explain) 1 - Manual Preparation of Data Entry B - Maintenance or Test 2- Manual Scram Shccts Licensee Event Report C - Refueling 3 - Automatic Scram (LER) File (NUREG4)161)

D - Regulatory restriction 4 - Continued E - Operator Training 8'c License Examination 5 - Load Reduction F - Administrative 9 - Other (Explain) Exhibit 1 - Same Source G - Operational Error (Explain)

H - Other (Explain)

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO ~ : 50-389 UNIT: St. Lucie g2 DATE'OMPLETED 10/12/93 BY: CD D. WHITE TELEPHONE: (407) 468-4248 REPORT MONTH SEPTEMBER 1993 Unit 2 reduced power from September 6, 1993 through September 10, 1993 for waterbox cleaning. On September 11, 1993, the unit reduced power due to a failure of the 2A1, 2A2, and 2B1 circulating water pump traveling screens. The unit remained at reduced power on September 12, 1993 due to high backpressure. On September 13, 1993 Unit 2 returned to full power. The unit reduced power again on September 22, 1993 due to high backpressure caused by excessive jellyfish intrusion. Unit 2 operated above 804 power from September 24, 1993 through September 25, 1993. On September 26, 1993, the unit again reduced power due to excessive jellyfish intrusion. From September 27, 1993 to September 29, 1993, Unit 2 held at about 504 power to repair a condenser tube leak and to clean the 2A2 waterbox. The unit reduced power again on September 30, 1993 due to a leak in the screen wash system and remained at reduced power due to high backpressure and increasing differential pressure across the 2B2 well.

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.