HL-5493, Monthly Operating Repts for Sept 1997 for Ei Hatch Nuclear Plant

Monthly Operating Repts for Sept 1997 for Ei Hatch Nuclear Plant

ML20217H710
Person / Time
Site:	Hatch
Issue date:	09/30/1997
From:	Beard R, Sumner H SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
HL-5493, NUDOCS 9710170024
Download: ML20217H710 (12)

Text

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Lowls Sumner Southern Nuclear

• Vce President Operating Company. Inc.

• llatch Project Support 40 invemess Parkway fost Offce Box 1295 Birmingham. Alabama 35201 Tel 205 902.7279 fax 205.992.0341 SOUTHERN L COMPANY Energy eo Serve Your World*

Docket Nos. 50-321 50-366 HL-5493 U. S. Nuclear Regulatory Commission -

ATTN: Document Control Desk Washington, D. C. 20555 Edwin I. Hatch Nuclear Plant Monthly Operatine Reports Gentlemen:

Enclosed are the September 1997 Monthly Operating Reports for Edwin I. Hatch Nuclear Plant Unit 1, Docket No. 50-321, and Unit 2, Docket No. 50-366. These reports are submitted in accordance with Technical Specifications requirements.

Sincerely, 4

de@d r th H. L. Sumner, Jr.

CLT/eb

Enclosures:

1. September Monthly Operating Report for Plant Hatch Unit 1

2. September Monthly Operating Report for Plant Hatch Unit 2 I

cc: Southern Nuclear Overating Comnany Mr. P. H. Wells, Nuclear Plant General Manager

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NORMS U. S. Nuclear Reeubtorv Commission. Washington D. C.

Mr. N. B. Le, Project Manager - Hatch U. S. Nuclear Reculatory Commission. Region 11 e ,i Mr. L. A. Reyes, Regional Administrator

- 1g Mr. B. L. Holbrook, Senior Resident Inspector - Hatch Utility Data Institute. Inc.

Ms. Barbara Lewis - McGraw-Hill Companies  !!!!!!f!!!f!!!{li[N!!!!!!!!!!!!

9710170024 970930 PDR ADOCK 05000321 R PDR

Enclosure 1 Plant Hatch Unit 1-Monthly Operating Report StDlfmber 1997 Table of Contents P.ags Narrative Report El-1 Operating Data Report El-2 Average Daily Power Level - El-3 Unit Shutdowns and Power Reductions El-4

PLANT E. l. HATCH - UNIT ONE DOCKET NO.: 50 321 DATE: OCTOBER 2,1997

. NARRATIVE REPORT COMPLETED BY: R.M. BEARD TELEPHONE: (912) 367 7781 x2878 SEPTEMBER 1 0000 Shift continued to maintain rated thermal power.

SEPTEMBER 2 0005 Unit entered End of Cycle Coastdown.

SEPTEMBER 6 0105 The "A" Reactor Feed Pump tripped while Shift was performlng the weekly surveillance on the pump. The Reactor Recirculation Gystem ran back as designed and the unit stabilized at approximetely 66% of rated thermal power and 540 GMWe.

SEPTEMBER 6 0152 Shift began ascension to the maximum achievable power.

SEPTEMBER 6 0235 The unit attained maximum achievable power.

SEPTEMBER 9 0930 Shift began reducing load to approximately 800 GMWe to remove the "A" Sth Stage Feedwater Heater from service for Final Feedwater Temperature Reduction.

SEPTEMBER 9 1165 Shift began reducing load further to approximately 790 GMWe to ensure thermal limit margins were maintained after removing the "A" 5th Stage Feedwater Heater from service.

SEPTEMBER 9 1453 Shift began ascension to the maximum achievable power.

SEPTEMBER 9 1633 The unit attained maximum achievable power.

SEPTEMBER 15 0247 Shift began reducing load to approximately 500 GMWe to remove the "A" Reactor Feed Pump Turbine from service to investigate the cause of high differential pressure across the turbine oil filters and high water content in the oil.

SEPTEMBER 16 0436 Shift began ascension to maximum achievable power after repairing the oil cooler on the "A" Reactor Feed Pump Turbine and retuming it to service.

SEPTEMBER 16 0525 Power ascension stopped at approximately 570 GMWe to repair the Reheat Steam Low Load Valve for the 2nd Stage of the A/B Moisture Separator Reheater Pair.

SEPTEMBER 16' 1940 Shift began ascension to max!mm achievable power after removing the 2nd Stage of the Moisture Sepan. tor Reheaters from service when it was discovered the velve could not be readily repaired.

SEPTEMBER 17 0040 Shift stopped power ascension at approximately 820 GMWe due to concem over the #4 Turbine Control Valve being at 50% open with the 2nd Stage of the Molsture Separator Reheaters out of service, SEPTEMBER 17 0055 Shift reduced load to apprcximately 810 GMWe to ensure the #4 Turbine Control Valve had adequate margin for pressure control functions.

SEPTEMBER 17 1015 Shift began ascension to maximum achievable power.

E1 ia

PLANT E. l. HATCH . UNIT ONE DOCKET NO.: 50-321 DATE: OCTOBER 2,1997

. NARRATIVE REPORT COMPLETED BY: R.M. BEARD TELEPHONE: (912) 367 7781 x2878 SEPTEMBER 17 1040 The unit attained mar.! num achievable power.

SEPTEMBER 17 2300 Shift began reducing load to approximately 725 GMWe to perform a Control Rod Pattern Adjustment.

SEPTEMBER 17 2325 Shlft began ascension to maximum achievable power.

SEPTEMBER 18 0320 The unit attained maximum achievable power.

SEPTEMBER 18 2140 Shift removed 17ie "A" 5th Stage Feedwater Heater from service for Final Feedwater Temperature Reduction.

SEPTEMBER 28 1005 Shift reduced load to approximately 750 GMWe to remove the "D" 5th Stage Fe6dwater Heater from service for Final Feedwater Temperature Reduction.

SEPTEMBER 28 1230 Shift began ascension to maximum achievable power.

SEPTEMBER 28 1530 The unit attained maximum achievable power.

SEPTEMBER 28 2400 Shift continued to maintain maximum achievable thermal power with the unit in End of Cycle Coastdown.

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OPERATING DATA REPORT DOCKET NO.: 50 321 DATE: OCTOBER 2,1997 COMPLETED BY: R. M. BEARD TELEPHONE: (912) 367 7781 x2878 OPERATING STATUS

1. UNIT NAME: E. l. HATCH - UNIT ONE

2. REPORT PERIOD: SEPTEMBER 1997

3. LICENSED THERMAL POWER (MWt): 2558

4. NAMEPLATE RATING (GROSS MWe): 850

5. DESIGN ELECTRICAL RATING (NET MWe): 822.1

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWe): 835 7, MAXIMUM DEPENDABLE CAPACITY (NET MWe): 800

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 THROUGH 7) SINCE LAST REPORT, GIVE REASONS: NO CHANGES

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWe): NO RESTRICTIONS

10. REASONS FOR RESTRICTION,IF ANY: N/A

, THIS MONTH YEAR TO-DATE CUMULATIVE o

11. HOURS IN REPORTING PERIOD: 120.0 6551 190654

12. NUMBER OF HOURS REACTOR WAS CRITICAL: 720.0 6458.1 148690.9

13. REACTOR RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0

14. HOURS GENERATOR ON LINE: 720.0 6430.6 143358.1

15. UNIT RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWHt): 1765343 16278785 326593461

17. GROSS ELECTRICAL ENERGY GENERATED (MWHe): 568401 5.09704 105172426

18. NET ELECTRICAL ENERGY GENERATED (MWHe): 542853 SW9452 100172662

19. UNIT SERVICE FACTOR: 100.0 % 98.2 % 75.2 %

20. UNIT AVAILABILITY FACTOR: 100.0 % 98.2 % 75.2%

21. UNIT CAPACITY FACTOR (USING MDC NET): 94.2 % 97.1 % 69.8%

22. UNIT CAPACITY FACTOR (USING DER NET): 91.7 % 94.5 % 67.3%

23. UNIT FORCED OUTAGE RATE: 0.0% 0.0% 9.8%

24. SHUTDOWNS SCHEDULED OVER THE NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH):

17th Refueling Outage tentatively scheduled for October 11,1997 with planned duration of 35.2 days.

25. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A

26. UNITS IN TEST STATUS (PRIOR TO COMMERCtAL OPERATION): N/A E12

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i PLANT E. l. ATCH UNIT ONE DOCKET No.: 50 321 DATE: OCTOBER 2,1997 AVERAGE DAILY POWER LEVEL COMPLETED BY: R. M. BEARD TELEPHONE: (912) 367 7781 x2878 SEPTEMBER 1997 DAY NetMWe i...................................... 787 2...................................... 784 i 3 .. .. . ............... 781 4......... 783 5:  :................... 789 6...................................... 770 7................... 780 8...................................... 774 9...................... 773 10...................................... 775 11..................................... 776 12...................................... 776 13...................................... 773 14.................................... 769 ,

is...................................... 498 l 16; ..................... 582 17...................................... 766 18...................................... 762 19...................................... 777 20...................................... 770 21..................................... 768 22...................................... 766 23.................................... 761 24...................................... 753 25...................................., 752 26..................................... 752 27...................................... 746 28..................................... 748 29....................................., 766 30...................................... 763 E13

4 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-321 DATE: OCTOBER 2.1997 UNIT NAMEt E.1. HATCH UNIT ONE COMPLETED BY: R.M. BEARD TELEPHDNE: (912) 367-7781 x2878 REPORT MONTH: SEPTEMBER 1997 R M S E E Y T A T UCENSEE SC Y S H EVENT TO COMPONENT CAUSE & CORRECTIVE P DURATION O O REPORT ED CODE ACTION TO NO. DATE_ E (HOURS) N D NUMBEf' ME (SUBCODE) PREVENT RECURRENCE 97 004 970915 F 0.0 B 5 N/A CH HTEXCH Shift reduced load to approximately (C) 500 GMWe te remove the 'A" RFPT from service and investigate tae cause of high filter dp and high water contentin the turbine oil system.

The oil cooler was found to be leaking plant service waterinto the system. The coo!er was repaired and the unit returned to rated thermal power.

TYPE: REASON: METHOD. EVENTS REPORTED INVOLVE A GREATER THAN 20%

F-FORCED A EOUIPMENT FAILURE (EXPLAIN) 14AANUAL REDUCTION IN AVERAGE S SCHEDULED B MAINTENANCE OR TEST 2 MANUAL SCRAM DAILY POWER LEVEL FOR s C REFUELING 3 AUTOMATIC SCRAM THE PRECEDING 24 HOURS.

O-REGUMTORY RESTRICTION 4 CONTINUATIONS E-OPERATOR TRAINING & LICENSE 5-LOAD REDUCTION F ADMINISTRATIVE 9-OTHER (EXPMIN)

G-OPERATIONAL ERROR (EXPLAIN)

H.OTHER (EXPLAIN)

E1-4

Enclosure 2 Plant IIntch Unit 2 Monthly Operating Report September 1997 Table of Contents PRC Narrative Report E2-1 Operating Data Report E2 2 Average Daily Power Level E2-3 Unit Shutdowns and Power Reductions E2-4 L

PLANT E. l. HATCH UNIT TWO DOCKET NO.: 50-360 DATE: OCTOBER 2,1997

' NARRATIVE REPORT COMPLETED BY: R. M. BEARD TELEPHONE: (912) 367 7781 x2878 SEPTEMBER 1 0000 Shift continued to maintain rated thermal power.

SEPTEMBER 15 0015 Shift began reducing power for unit shutdown to adjust inboard Main Steam isolation Valve limit switches which did not reset during the quarterly surveillance.

SEPTEMBER 15 1623 Shift removed the unit from the grid and manually tripped the turbine.

SEPTEMBER 15 1635 Shift manually scrammed the reactor.

SEPTEMBER 18 0202 Shift began withdrawing control rods for unit startup.

SEPTEMBER 18 1520 Shift brought the reactor critical.

SEPTEMBER 20 0345 Shift tied the Main Generator to the grid and bega' ascension to rated thermal power.

SEPTEMBER 22 0402 The unit attained rated thermal power.

SEPTEMBER 30 2400 Shift continued to maintain rated thermal power, E21

OPERATING DATA REPORT DOCKET NO.: 50-366 DATE: OCTOBER 2,1997 COMPLETED BY: R.M. BEARD OPERATING STATUS TELEPHONE: (912) 367 7781 x2878

1. UNIT NAME:

E. l. HATCH - UNIT TWO

2. REPORT PERIOD:

SEPTEMBER 1997

3. LICENSED THERMAL POWER (MWt): 2558

4. NAMEPLATE RATING (GROSS MWe): 850

5. DESIGN ELECTRICAL RATING (NET MWe): 829.7 U. MAXIMUM DEPENDABLE CAPACITY (GROSS MWe): 853

7. MAXIMUM DEPENDABLE CAPACITY (NET MWo): 818

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 THROUGH 7) SINCE LAST REPORT. GIVE REASONS: NO CHANGES

9. POWER LEVEL TO WHICH RESTRICTED,IF ANY (NET MWe): NO RESTRICTIONS

10. REASONS FOR RESTRICTION,IF ANY:

N/A THIS MONTH YEAR TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD: 720.0 6551 158280

12. NUMBER OF HOURS REACTOR WAS CRITICAL: 653.9 5608.3 124767.0

13. REACTOR RESERVE SHUTDOWN HOURS: 0.0 0.0

14. HOURS GENERATOR ON LINE: 0.0 612.6 5500.0 120790.7

15. UNIT RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWHt): 1507369 13790042 272016775

17. GROSS ELECTRICAL ENERGY GENERATED (MWHe): 490598 4571397 89326860

18. NET ELECTRICAL ENERGY GENERATED (MWHe): 467367 4369971 85149133

19. UNIT SERVICE FACTOR: 85.1 % 84.0 % 76.3%

20. UNIT AVAILABILITY FACTOR: 85.1% 84.0 % 76.3%

21. UNIT CAPACITY FACTOR (USING MDC NET): 79.4 % 81.5 % 69.8%

22. UNIT CAPACITY FACTOR (USING DER NET): 78.2 % 80.4% 68.5%

23. UNIT FORCED OUTAGE RATE: 0.0% 1.3% 6.3%

24. SHUTDOWNS SCHEDULED OVER THE NEXT 6 MONTHS (TYPE, DATE, AND DURATION N/A OF EACH):

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

N/A

26. UNITS IN TbST STATUS (PRIOR TO COMMERCIAL OPERATION): N/A hi 2

+ .

4 PLANT E.1. HATCH UNIT TWO DOCKET No.: 50-366 DATE: OCTOBER 2,1997

, AVERAGE DAILY POWER LEVEL COMPLETED BY: R.M. BEARD TELEPHONE: (912) 367 7781 x2873 SEPTEMBER 1997 DAY NeudWe 1..................................... 808 2..................................... 806 3...................................... 807 4................................... 811 5.......... 816 6..................................... 815 7..................................... 815 8.................................... 813 9..................................... 813 1 0 . .. . . . . . . . . . . ...... 811 11..................................... 811 12.................................. 811 13..................................... 810 14..................................... 807 15...................................... 242 16 .......... 0 17...................................... 0 16: ................ 0 19.................................... 0 20..................................... 155 21..................................... 543 22.................................... 802 23...................................... 808 24..................................... 806 25.................................... 806 26.................................... 807 27..................................... 809 28= ...................... 810 29....................... 810 30..................................... 812 E2-3

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-366 DATE: OCTOBER 2,1997 UNIT NAME: E. l. HATCH UNIT TWO COMPLETED BY: R. M. BEARD TELEPHONE: (912) 367 7781 x2878 REPORT MONTH: SEPTEMBER 1997 R M S E E Y T A T LICENSEE SC Y S H EVENT TO COMPONENT CAUSE & CORRECTIVE P DURATION O C REPORT ED CODE ACTION TO

_NO. DATE E (HOURS] N D NUMBER ME (SUBCODE) PREVENT RECURRENCE 97-008 970915 S 107.4 0 2 N/A CD INSTRU Shift began reducing load for unit (S) shutdown when severallimit switches on the inboard MSIVs failed to reset during the quarterly surveillance.

The limit switches were adjusted and the unit returned to rated thermal power.

l TYPE: REASON. METHOD; EVENTS REPOR1ED INVOLVE A GREATER THAN 20%

F-FORCED 1 MANUAL A EQUIPMENT FAILURE (EXPLAIN) REDUCTION IN AVERAGE S-SCHEDULED D-MAINTENANCE OR TEST 2-MANUAL SCRAM DAILY POWER LEVEL FOR C-REFUELING 3-AUTOMATIC SCRAM THE PRECEDING 24 HOURS.

D REGULATORY RESTRICTION & CONTINUATIONS E-OPERATOR TRAINING & LICENSE 5-LOAD REDUCTION F ADMINISTRATIVE G-OTHER (EXPLAIN)

G-OPERATIONAL ERROR (EXPLAIN)

H-OTHER (EXPLAIN)

E2-4

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