ML20199K057

Monthly Operating Repts for Oct 1997 for South Texas Project Unit 1 & 2

ML20199K057
Person / Time
Site:	South Texas
Issue date:	10/31/1997
From:	Hill R, Mcburnett M HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ST-HL-AE-005789, ST-HL-AE-5789, NUDOCS 9711280304
Download: ML20199K057 (14)

Text

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'The Light c o mp a ny8"'h L'** P' ject untric cennating sinitonP. o. no. 289 w d.wonh, Toa. 774as Ilotliton 1.lghting & Power November 13,1997 ST-HL-AE-005789 File No. G02 STl30470405 10CFR50.71 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 50uth Texas Project Units 1 and 2 Docket Nos. STN 50-498, STN 50-499 Monthlv Oneratine Renorts for October 1997 Pursuant to 10CFR50.71(a) and South Texas Project Electric Generating Station (STPEGS) Technical Specification 6.9.1.5, attached are the Monthly Operating Reports for October 1997.

If you should have any questions on this matter, please contact T. E. Underwood at (512)972-7108.

Sincerely,

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M. A. McDurnett Director, Nuclear Licensing RLH/sl

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Attachments: 1) STPEGS Unit 1 Monthly Operating Repor:- October 1997

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2) STPEGS Unit 2 Monthly Operating Report - October 1997

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ApocK050004y8 gp, Project Manager on Behalf of the Participants in the South Texas Project

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Houston Lighting & Power Company ST-ilL-AE-5789 South Texas Project Electric Generating Station File No.:

G02 Page 2 Ellis W. Merschoff Rufus S. Scott Regional Administrator, Region IV Associate General Counsel U. S. Nuclear Regulatory Commission 110tston Lighting & Power Company 611 Ryan Plaza Drive, Suite 400 P. O. Box 61067 Arlington, TX 76011-8064 Ilouston,TX 77208 Thomas W. Alexion Institute of Nuclear Power Project Manager, Mail Code 13113 Operations - Records Center U. S. Nuclear Regulatory Commission 700 Galleria Parkway Washington, DC 20555-0001 Atlanta, GA 30339-5957 David P. Loveless Dr. Bertram Wolfe Sr. Resident inspector 15453 Via Vaquero c/o U. S. Nuclear Regulatory Comm.

Monte Sereno, CA 95030 P. O. Box 910 Bay City, TX 77404-0910 Richard A. Ratliff 1

Buree's of Radiation Control J. R. Newman, Esquire Texas Department ofIIcalth l

Morgan, Lewis & Bockius 1100 West 49th Street I800 M Street, N.W.

Austin, TX 78756-3189 Washington, DC 20036-5869 J. R. Egan, Esquire M. T. liardt/W. C. Gunst Egan & Associates, P.C.

City Nblic Service 2300 N Street, N.W.

P. O. Box 1771 Washington, D.C. 20037 San Antonio,TX 78296 J. C. Lanier/M. B. Lee U. S. Nuclear Regulatory Commission City of Austin Attention: Document Control Desk Electric Utility Department Washington, D.C. 20555-0001 72: Barton Springs Road Austin,TX 78704 Central Power and Light Company -

ATTN: G. E. Vaughn/C. A. Johnson.

P. O. Box 289, Mail Code: N5012 -

Wadsworth,TX 77483 1

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,1 SOUTil TEXAS PROJECT '

e ELECTRIC GENERATING STATION

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UNIT I' MONhILY OPERATING REPORT OCTOBER 1997 -

IlOUSTON LIGIITING AND POWER CO.

3 NRC DOCKET NO 50 498 -

1,1 CENSE NO. NPi.76 Reviewed By: T 8 8l /3/f 7 T.E. UNDERWOOD Date t([/J/f 7 Approved By:

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i MONTHLY

SUMMARY

- South Texas Project Unit I began the reporting period shutdown for refueling and scheduled -

maintenance.

The unit was returned to service on October 4, at 1433. On October 6, at 1115 a relief valve on the #11 Moisture Separator Reheater opened with the unit at 75% reactor power. The unit was removed from service at 132! to investigate the cause and make the necessary repairs. Following repairs, the unit was returned to service on October 8, at 0530 and full power achieved on October 11; at 1425.

The unit operated for the remainder of the period at full pcwer with no unit shutdowns or significant power reductions.

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OPERATING DATA REPORT DOCKET NO. - 50498 UNIT 1 DATE Nov. I 1.1997 COMPLETED BY RL 11111 TELEPHONE 512 972-7667 OPERATING STATUS 1.

REPORTING PERIOD: 10/1/97-10'31/97 GROSS IlOURS IN REPORTING PERIOD: 245 2.

CURRENTLY AUTilORIZED POWER LEVEL (Mwt):.3.800 MAXIMUM DEPENDADI E CAPACITY (MWe Net): 1250.6 DESIGN ELECTRICAL RA flNG (MWe Net): 1250.6 3.

POWER LEVEL TO WillCil RESTRICTED (IF ANY) (MWe-Net): Nant l

4.

REASONS FOR RESTRlCTION(IF ANY): N/A TlilS MONTH YR TO DATE CUMULATIVE-5.

NUMBER OF llOURS REACTOR CRITICAL 6.82.1 6.728.4 56.607.9

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REACTOR RESERVE S11UTDOWN ilOURS Q

Q Q

7, llOURS GENERATOR ON 1.INE 6263

. 6.646.8 55.200.2 8.

UNIT RESERVE SHUTDOWN llOURS Q

Q Q

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GROSS TilERMAL ENERGY GbNERATED (MWil) 2.170.904 24.908.398 204.143.663

10. GROSS ELECTRICAL ENERGY GENERATED (MWH) 741.631 8.523.391 69.585.101

11. NET ELECTRICAL, ENERGY GENERATED (MWil) 707.637 8.171.851 66.211.371

- 12. REACTOR SERVICE FACTOR 91.6 %

92.2 %

20.,3%

13. REACTOR AVAILABILITY FACTOP

. 91.6%

92.2 %

70.3 %

14. UNIT SERVICE FACTOR 84.1 %

91.1 %

68.6 %

15. UNIT AVAILABILITY FACTOR 84.1 %

91.1 %

68.6 %

16. UNIT CAPACITY FACTOR (Usmg MDC) 76.0 %

89.6 %

618%

17.

U' NIT CAPACITY FACTOR (Using Design MWe) 16 0 %

89 3 %

65.8 %

18. UNIT FORCED OUTAGE RATE fLDS 04 %

20.8%

L 19. - SilUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH):

p N/A k

20.- IP SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A i

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-498 UNIT 1 DATE Nov. I1. [222 COMPLETED BY R.L. Hill

'lELEPHONE 512 972-7667 MONTil OCTOBER DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL LEVEL (MWe Net)

(MWe-Net) 1 0

17 1260 2

0 18 1260 1

0 19 1263 4

81 20 1212 5

462 21 1261 i

6 321 22 1261 7

0 23 1262 8

182 24 1260 9

E10 25 1260 10 luta 26 1261 l

11 1212 27 1262 i

12 1216 28 1261 13 1218 29 1261 l

l4 1260 30 J260 i5 1261 31 1260 16

.1260

UNIT SIIUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-493 UNIT 1 DATE Nov. I L 1907 COMPLETED BY RL llill i

TELEPilONE 512 972-7667 l

REPORT MONTil OCTOBER

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2' 3

4 5

l No.

Date Type Duration Reason Method of Licenwe Sys**m Component Cause & Corrective Action to Prevent Recurrence (flours)

Shutting Event Code Code Down Report #

keactor 97-05 970913 S

77.2 C

4 N/A N/A N/A Refueling and scheduled maintenance outage.

97-06 971004 S

1.3 B

1 N/A TA TRB Main Turbine Overspeed Trip Test.

97-07 971006 F

40.1 A

I N/A SB RV While gradually increasing pow er level, a relief valve ca the # 1 I Moisture Separator Reheater (MSR) opened with the unit at 75% reactor power. It sas determined that the valve opened below setpoint pressure due to i

degredation/ failure of the main disc seal. De failed valve was replaced. Similar valves that were worked in the refueling outage were disassembled and inspected with no discrepancies noted.

De root cause of the seal degradation has not yet been

?-termined. Further analysis will be performed.

I 2

3 4

5 Method:

IEEE 805-1983 IEEE 803-1983 F. Forced hoason:

S: Scheduled A-Equipment Failure (Explain) 1-Manua!

l B-Maintenance or Test 2-Manual Scram C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Cont. of Existing E-Operator Training & License Exam Outage F-Administrative 5-Reduction G-Operational Error (Explain) a Other li-Other (Explain) n

PORYS AND SAFETY VALVE

SUMMARY

There were no PORV or Safety Valves challenged during the reporting peri-A.

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SOUTil TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 2 MONTiiLY OPER ATING REPORT OCTOBER 1997 IlOUSTON LIGitTING AND POWER CO.

NRC DOCKET NO. 50-499 LICENSC NO. NPF 50 Reviewed By:

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n l F3 N7 T.E. UNDERWOdD Dat6

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Approved By:

R.E. h1ASSE Date I.___._______.____._________.____________.____

MONTIILY

SUMMARY

South Texas Project Unit 2 operated during the reponing period at full power with no unit shutdowns or significant power reductions,

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OPERATING DATA REPORT DOCENT, 50-499 UNIT 2 DATE Nov.11.1997 COMPLETE'.) BY R L. Hill TELEP'.10NE 512 972-?667 OPERATING STATUS 1.

REPORTING PERIOD: 10/1/97-10/31/97 GROSS IlOURS IN REPORTING PERIOD: 24.1 2.

CURRENTLY AUTilORIZED POWER LEVEL (Mwt):.3100 MAXIMUM DFPENDABLE CAPACITY (MWe-Net): 1250.6 DESIGN tILECT R! CAL RATING (MWO-Net): 1250.6 3.

POWER LEVEL TO WillCil RESTRICTED (IF ANY) (MWe-Net): Nonc 4.

REASONS FOR RESTRICTION (IF ANY): N/A Tills MONTil YR TO DATE CUMULATIVE 5.

NUMiiER OF llOURS REACTOR CRITICAL 231Q 6.798.1 53.352.5 6.

REACTOR RESERVE SilUTDOWN llOURS Q

Q Q

7.

IlOURS GENERATOR ON LINE 2410 6.721.9 iL9.1dd 8.

UNIT RESERVE SilUTDOWN llOURS Q

Q Q

9.

G00SS TilERMAL ENERGY GENERATED (MWil) 2.843.3 3 25.305.519 102.122.129

10. GROSS ELECTRICAL ENERGY GENERATED (MWii) 974.475 8.631.587 65.380.868 11 NET ELECTRIC AL ENERGY GENERATED (MWil) 933.920 8.262 031 62.369.307

12. REACTOR SERVICE FACTOR 100.0 %

232%

72.7 %

13. REACTOR AVA LABILITY FACTOR 100 0 %

93.2 %

72.7 %

14. UNIT SERVIC E FACTOli 100.0 %

92.1 %

70.8 %

15. UNIT AVAILABILITY FACTOR 100 & %

92 1%

70.8 %

16. IMIT CAPACITY FACTOR (Using MDC) 100.2 %

20 4 %

68.0 %

17. UNIT CAPACITY FACTOR (Using Design MWe) 1012%

90.6 %

68.0 %

18 UNIT FORCED OUTAGE RATE Qa%

2.2%

20.1 %

li. SilVTDOWNS SCilEDIILED OVER NEXT 6 MONTilS (TYPE, DATE, AND DURATION OF EACH):

N/A

20. [F SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A l

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AVERAGE DAILY UNIT POWEP. LEVEL DOCKETNO. 50-499 UNIT 2 DATE Nov.1 ~1.1997 COMPLETED BY E!dlill TELEPlIONE 512 972-7667 MONTil OCTOBER DAY AVERAGE DAILY POWER DAY AVERAGE DAILY IOWER LEVEL LEVEL (MWe Net)

(MWe-Net) 1 J228 17 1251 2

1232 18 J25%

3 1212 19 1212 4

1211 20 1216 5

1211 21 1252 6

1211 22 1211 7

1248 23 1211 8

12it 24 1252 9

1251 25 1216 10 1251 26 1218 11 J211 27 1218 12 1214 28 1211 13 1214 29 1260 14 1212 30

.!218 15 1252 31 1258 16 1252

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UNIT SIIUTDOWNS AND POWER REDUCTIONS DOCKETNO. 50-409 UNIT 2 DATE Nov.11 1997 COMPLETED BY R.L llill

'ELEP110NE 512 972-7667 REPORTMONTil OCTOBER I

2l 3

4 5

No.

Date Type Duration Reason

• Method on Licensee System Component Cause & Corrective Action to Prevent Recurrence (Ifours)

Shutting Event Code Code Down Report #

Reactor TilERE WERE NO UNIT SilUTDOWNS OR SIGNIFICANT POWER REDUCTIONS DURING TIIE REPORTING PERIOD i

1 2

3 4

5 F: Forced Reason:

Method:

IEEE 805-1983 iEEE 803-1983 S: Scheduled A-Equipment Faisre (Explain) 1-Manual I

B-Maintenance or Test 2-Manual Scram C-Refueling 3-Automstic Scram D-Regulatory Restriction 4-Cont. of Existing E-Operatar Training & License Exam Outage F-Administrative 5-Reduction G-Operational Error (Explain) 9-Other II-Other(Explain)

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PORYS AND SAFETY VALVE

SUMMARY

8 There were no PORV or Safety Valves challenged during the reponing per 3d.