ML17228A553

Monthly Operating Repts for Apr 1994 for St Lucie Units 1 & 2.W/940512 Ltr

ML17228A553
Person / Time
Site:	Saint Lucie
Issue date:	04/30/1994
From:	Sager D, Charlotte White FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-94-120, NUDOCS 9405180026
Download: ML17228A553 (15)

Text

ACCELERATED DI UTION DEMONST. TION SYSTEM 4

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9405180026 DOC.DATE: 9@/4~4. NOTARIZED: NO DOCKET FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power & Light Co. 05000335 50-389 St. Lucie Plant, Unit 2, Florida Power & Light Co. 05000389 AUTH. NAME AUTHOR AFFILIATION WHITE,C.D. Florida Power & Light Co.

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

RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

Month o crating repts for Apr 1994 for St Lucie Units 1 &

2.W/940512 ltr. D DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTRI ENCL J SIZE:

TITLE: Monthly Operating Report (per Tech Specs)

NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL D PD2-2 PD 1 1 NORRIS,J 1 1 INTERNAL: ACRS 10 10 AEOD/DOA 1 1 D AEOD/DS P/TPAB 1 1 RR~ORS OEAB 1 1 NRR/DRIL/RPEB 1 1 REG FILE 01 1 1 RGN2 1 1 EXTERNAL EG &G BRYCE i J ~ H 1 1 NRC PDR 1 1 NSIC 1 1 D

D NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 21 ENCL 21

. ~ P.O. Box 12S, Ft. Pierce, FL 34954-0128 May 12, 1994 L-94-120 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 April, 1994, 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. L ie Plant DAS/CDW/kw cc: Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant Attachments DAS/PSL 81121-94 c 9405180026,940430 PDR ADOCK 05000335

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OPERATING DATA REPORT DOCKET NO 50 - 335 DATE 5/ 9/94 COMPLETED BY C. D. WHITE TELEPHONE 407/468/4248 OPERATING STATUS

1. UNIT NAME: ST. LUCIE UNIT 1

2. REPORTING PERIOD: APRIL 1994

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: 719 2879 152159.0

12. NUMBER OF HOURS REACTOR WAS CRITICAL 710.2 2772.4 118302.4

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 205.3 14 'OURS GENERATOR ON"LINE 659.4 2714.7 117069. 6

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 39.3

16. GROSS THERMAL ENERGY GENERATED (MWH) 1741819 7229577 302994878

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 572710 2374370 99987660

18. NET ELECTRICAL ENERGY GENERATED (MWH) 541166 2246703 94505065

19. UNIT SERVICE FACTOR 91.7 94.3 76.9

20. UNIT AVAILABILITYFACTOR 91.7 94.3 77.0

21. CAPACITY FACTOR (USING MDC NET) 89.7 93.0 76.4

22. CAPACITY FACTOR (USING DER NET) 90.7 94.0 75.7

23. UNZT FORCED OUTAGE RATE 8.3 5.7 4.0

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS UNIT 1 CYCLE 13 REFUELING OUTAGE SCHEDULED TO BEGIN OCTOBER 15, 1994.

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

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO ~ . 50-335 UNIT: St. Lucie g1 DATE 05/09/94 COMPLETED BY: C. D. White TELEPHONE: (407) 468-4248 MONTH APRIL 1994 DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 4/01/94 -34 4/02/94 66 4/03/94 -31 4/04/94 668 4/05/94 847 4/06/94 854 4/07/94 854 4/08/94 851 4/09/94 851 4/10/94 846 4/11/94 850 4/12/94 850 4/13/94 849 4/14/94 849 4/15/94 853 4/16/94 854 4/17/94 852 4/18/94 845 4/19/94 844 4/20/94 843 4/21/94 841 4/22/94 842 4/23/94 844 4/24/94 836 4/25/94 833 4/26/94 834 4/27/94 832 4/28/94 828 4/29/94 781 4/30/94 818

4l

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO ~ . 50-335 UNIT St. Lucie g1 DATE: 05/09/94 COMPLETED BY: C. D. White TELEPHONE: (407) 468-4248 REPORT MONTH APRIL 1994 Unit 1 was off-line until April 2,1994, to repair a shutdown cooling suction isolation valve. The repair was completed and reactor power was increased to approximately 204. On April 2, 1994, the unit was held at 204 to repair the 1A startup transformer breaker. On April 3, 1994, the unit tripped automatically due to a control element drive mechanism bus overcurrent and undervoltage transient caused by a procedural error. On April 4,1994, Unit 1 was increased in power and the average daily power level remained above 804 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.

'I UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-335 UNIT NAME: ST LUCIE UNIT I DATE: 05/09/94 COMPLETED BY: C. D. WHITE TELEPHONE: (407) 468-4248 REPORT MONTH APRIL 1 4 No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective (Hours) Shutting Event Report Codes Codes Action to Down Prevent Recurrence Reactor 3/29/94 35.3 B N/A CF VALVES Unit 1 remained off-line to repair a shutdown cooling system suction isolation valve.

4/2/94 0.0 N/A EB TRANSF Unit 1 remained at low power to repair the 1A startup transformer breaker.

4/3/94 24.3 G LER 94-04 ED GENERA Unit 1 reactor/turbine trip due to procedural error.

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

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

H - Other (Explain)

OPERATING DATA REPORT DOCKET NO 50 - 389 DATE 5/ 9/94 COMPLETED BY C. D. WHITE TELEPHONE 407/468/4248 OPERATING STATUS

1. UNIT NAME: ST. LUCZE UNIT 2

2. REPORTING PERIOD: 'PRIL 1994

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 g ZF ANY

'ONTHLY -YTD- CUMULATIVE

11. HOURS IN REPORT PERIOD: 719 2879 94056.0

12. NUMBER OF HOURS REACTOR WAS CRITICAL 192.3 1248.4 78412.1

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

14. HOURS GENERATOR ON-LINE 82.6 1138.7 77034.0

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 105358 2913584 199874509

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 30760 941450 66451000

18. NET ELECTRICAL ENERGY GENERATED (MWH) 13815 870046 62771217

19. UNIT SERVZCE FACTOR 11.5 39.6 81.9

20. UNIT AVAILABILITYFACTOR 11. 5 39.6 81.9

21. CAPACITY FACTOR (USING MDC NET) 2.3 36.0 80.5

22. CAPACITY FACTOR (USING DER NET) 2.3 36.4 80.9

23. UNIT FORCED OUTAGE RATE 58.9 9.4 7.4

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS

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

-AVERAGE DAILY UNIT POWER LEVEL DOCKET NO ~ 50-389

'NIT St. Lucie g2 DATE: 05/09/94, COMPLETED BY C. D. White TELEPHONE: (407) 468-4248 MONTH APRZL 1994 DAY AVERAGE DAZLY POWER LEVEL (MWe-Net) 4/01/94 -12 4/02/94 -12 4/03/94 -11 4/04/94 -12 4/05/94 -11 4/06/94 -9 4/07/94 -9 4/08/94 -9 4/09/94 -11 4/10/94 -12 4/11/94 -12 4/12/94 -13 4/13/94 -17 4/14/94 -24 4/15/94 -28 4/16/94 -30 4/17/94 -30 4/18/94 -31 4/19/94 -32 4/20/94 -32 4/21/94 -32 4/22/94 36 4/23/94 69 4/24/94 -32 4/25/94 -32 4/26/94 -32 4/27/94 -32 4/28/94 65 4/29/94 363 4/30/94 558

'I

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO.: 50-389 UNIT0 St. Lucie g2 DATE 05/09/94 COMPLETED BY: C. D. White TELEPHONE: (407) 468-4248 REPORT MONTH APRIL 1994 Unit 2 continued its Cycle 8 refueling outage until April 22, 1994.

The unit was then operated at low power for post refueling outage testing until April 23, 1994. The unit automatically tripped on April 23, 1994 during testing due to a wiring error in the RPS channel B bypass circuit. On April 26, 1994, the unit was operated at low power during repairs to the turbine steam bypass system.

From April 28, 1994, until April 30, 1994, power was increased and then held at approximately 50% for physics testing. Power was then increased to approximately 65~ and held for chemistry purposes for the remainder 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.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-389 UNIT NAME ST LUCIE UNIT 2 .

DATE 05/09/94 COMPLETED BY: C. D. WHITE ~

TELEPHONE: (407) 468-4248 REPORT MONTH APRIL 1 4 No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective (Hours) Shutting Event Report Codes Codes Action to Down Prevent Recurrence Reactor 2/14/94 513.9 N/A RC FUELXX Unit 2 was off-line for Cycle 8 refueling.

4/22/94 0.0 B N/A RC FUELXX Unit 2 operated at reduced power for post refueling tests.

4/23/94 ~ F 82.7 A LER 94-03 IA INSTRU Unit 2 tripped during testing due to an improperly wired RPS channel B bypass circuit .

4/27/94 35.7 B N/A VALVES Unit 2 remained at reduced power due to a problem with the turbine steam bypass system 4/29/94 0.0 B N/A RC FUELXX Unit 2 was held at approximately 50% power for physics testing.

4/30/94 0.0 B N/A PC zzzzzz Unit 2 was held at approximately 65% power for chemistry testing.

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 Sheets Licenscc Event Report C - Refueling 3 - Automatic Scram (LER) File (NUREG4161)

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

H - Other (Explain)

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