HL-1476, Monthly Operating Repts for Jan 1991 for Hatch Units 1 & 2

Monthly Operating Repts for Jan 1991 for Hatch Units 1 & 2

ML20066J082
Person / Time
Site:	Hatch
Issue date:	01/31/1991
From:	Beard R, Hairston W GEORGIA POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
HL-1476, NUDOCS 9102250010
Download: ML20066J082 (12)

Text

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W. G. Hairston, lit sen, w e reeseem Nx!ce Owitt ons HL-1476 000116 February 8, 1991 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 PLANT HATCH - UNITS 1, 2 NRC DOCKETS 50-321, 50 366 OPERATING LICENSES DPR 57, NPF 5 MONTHLY OPERATING REPORTS Gentlemen:

Enclosed are the January 1991 Monthly Operating Reports for Plant Hatch Unit 1 Docket No. 50-321, and Plant Hatch Unit 2, Docket No. 50-366. These reports are submitted in accordance with the requirements of Technical Specifications Section 6.9.1.10.

Sincerely, n u 0. :Y l

[h.G.Hairston,Ill SRP/sp

Enclosures:

1. Monthly Operating Report for Hatch Unit 1

2. Monthly Operating Report for Hatch Unit 2 c:- (See next page.)

• 9102250010 910131 PDR ADOCK 05000321 R PDR

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' .Get 1[gial nvel sk U.S. Nuclear Regulatory Commission February B. 1991 Page Two c: Eeoraia Power Company Mr. H. L. Sumner, General Manager - Nuclear Plant Mr. J. D. Heidt, Manager Engineering and Licensing - Hatch NORMS U.S. Nuclear Reaulatory Commission. Washinaton. D.C.

Mr. K. Jabbour, Licensing Project Manager - Hatch U.S. Nuclear Reaulatory Commission. Reaion 11 Mr. S. D. Ebneter, Regional Administrator Mr. l.. D. Wert, Senior Resident inspector - Hatch 000116 4

ENCLOSURE 1 PLANT HATCH UNIT 1 NRC DOCKET 50 321 MONTHLY OPERATING REPORT danuary 1991 TABLE Of CONTENTS P_iL42 Narrative Report El-1 Operating Data Report El-2 Average' Daily Power Level El-3 ,

Unit Shutdowns and Power Reductions El-4 7

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000116

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PLANT r. I. HATCH - UNIT ONE DOCKET NO.: 50-321 '

DATE: FEBRUARY 4, 1991 NARRATIVE REPORT COMPLETED BY: R. M. BEARD .

TELEPHONE: (912) 367-7781 x2878 JANUARY 1 0000 Shift was maintaining rated thermal power.

JANUARY 4 2239 Shift began reducing load to approximately 760 GMWe to complete a Control Rod Exercise on critical rods.

, JANVARY 4 2259 Shift hapan returning the unit to rated thermal power.

JANVARY 11 2000 Shift began reducing load to approxt nately 760 GMWe to complete a Control Rod Exercise on et ;tical rods. '

JANUARY 11 2020 Shif t began returning the unit to rated thermal power.

JANVARY 14 1610 Shift began reducing load to approximately 660 GMWe to-  ;

remove the "A" Plant Service Water Pump from service.

The "B" Plant Service Water Pump was out of service for maintenance.

n ,

JANUARY 14 1105 Shift began returning the unit to rated thermal power in increments of 10 MWe while monitoring temperatures on the Plant Service Water System.

JANVARY 18 1500 The unit experienced an automatic reactor scram when a gruund fault occurred on an offsite tranLnission line and resulted in a generator trip and subsequent turbine trip.

JANUARY 20- 0405 shitt began control rod withdrawal.

JANUARY 20 0953- Shift brought the reactor critical.-

JANUARY 21 0034 Shift tied the generator to the grid and began ascension to rated thermal power.

JANUARY 21 1750 Shift attained rated thermal power.

JANUARY 25 0928 Shift began reducing load to approximately 760 GMWe to remove the "A" 7th feedwater Heater from service in order to facilitate repair of the low level control-valve for the "C/0" Moisture-Separator Reheaters 1st Stage Drain Tank, JANUARY _25 1225 Shift began returning the unit to rated thermal power.

- JANUARY 25 2305 Shiftbeganreducing.loadtoapproximately700GMWefor Turbine Control Valve and Turbine Bypass talve Testing.

JANVARY 26 0203 Shift began returning the unit to rated thermal power. .

JANUARY 31 2400 Shift is maintaining rated therma' 'r.

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OPERATING DAT A REPORT DOCKET NO.: 50-321 DATE: FEBRUARY 4, 1991 r0MPLETED BY: R. M. BEARD OPEPAllNG STATUS

1. UNIT HAME: E. I. HATCH - UNIT ONE

2. REPORT PERIOD: JANUARY 1991

3. LICENSED THERMAL POWER (i1Wt : 2436

4. NAMEPLATE RATING (GROSS MWe : 850

5. DESIGN ELECTRICAL RATING H T MWe : 776.3

6. MAXIMUM DEPENDABLE CAPAC1'Y GROS MWe 774

7. MAXIMUM DEPENDABLE CAPACITY HET MWe):): 741

8. IF CHANGES OCCUR IN CAPACITY PATINGS (ITEMS 3 THROUGH 7) SINCE LAST REPORT, GIVE REASONS:

Maximum Dependable Capacities for 1991 are 774 MWe Gross) and 741 MWe ( et).

The values were determined b Southern Comp ny Serv ces from 1990 operat onal data.

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

10. REASONS FOR RESTRICTION, if ANY: N/A THIS MONTH YEAR-10-DATE CUhULATIVE

11. HOURS IN REPORTING PERIOD: 744.0 744 132239

12. NUMBER OF HOURS REACTOR WAS CRITICAt: 701.1 701.1 96248.7

13. REACTOR RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0

14. HOURS GENERATOR ON LINE: 686.4 686.4 91746.5

15. UNIT RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0

1652276 1652276 202565723

16. GROSS THERMAL ENERGY GENERATED (MWHt)He):

17. GROSS ELECTRICAL ENERGY GENERATED (MW 527520 S27520 65297380

18. NET ELECTRICAL ENERGY GENERATED (MWHe): 504159 504159 62084327

19. UNIT SERVICE FACTOR: 92.3% 92.3% 69.4%

20. UNIT AVAILABILITY FACTOR: 92.3% 92.3% 69.4%

21. UNIT CAPACITY FACTOR USING MDC NET : 91.4% 91.4% 62.6%

22. UNIT CAPACITY FACTOR USING DER NET : 87.3% 87.3% 60.2%

23. UNIT FORCED OUTAGE RA E: 7.7% 7.7% 13.4%

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

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

26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION): N/A El-2

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PLAN 7 E. 1. HATCH - UNIT ONE DOCKET N0.: 50-321 DATE: FEBRUARY 4, 1991 AVERAGE DAILY POWER LEVEL COMPLETED BY: R. M. 8EARD TELEPHONE: (912) 367-7781 x2878 DAY Net MWe 1 .............. 747 2-.............. 748 3 ..............- 748 4 .............. 748 5 .............. 747 6 .............. 745

-7 .............. 741 8 . ............ 748 9 .............. 749 10 .............. 748 11 .............. 742 12 .............. 744

'13 .............. 750 14 .............. 740-15 .............. 742 16 .............. 743 17 .............. 749 18 ,............. 463 19 ............... 0 20 .:............. 0 21 .............. 431 22............... 742 23 .............. 750 24 .-............. 753 25 ............... 742 26..............- 745 27 .............. 749 28 c............. 747 29 .............. 747 -

30 .......-....... 743 ,

31 ...............

- 749 i

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-321 DATE: FEBRUARY 4, 1991

$ UNIT NAME: E. 1. HATCH - UNIT ONE COMPLETED BY: R. M. BEARD TELEPHONE: (912) 367-7781 x2878 g REPORT MONTH: JANUARY 1991

'1 R H S L,

E E Y h T A T LICENSEE SC i Y S H EVENT T0 COMP 0NENT CAUSE & CORRECTIVE P DURATION O 0 REPORT ED CODE ACTION TO NO. DATE E (HOURS) N D NUMBER HE (SUBCODE) PREVENT RECURRENCE

,91-001 910118 F 57.6 A 3 1-91-001 EA CKTBKR The unit experienced-an (X) automatic reactor scram when a ground fault occurred on an offsite transmission line due to failure of the conductor.

A breaker in the 230 KV switchyard failed to open as required to clear the fault.

This led to a generator trip and subsequent turbine trip.

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

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

D-REGULATORY RESTRICTION 4-CONTINVAT10NS E-0PERATOR TRAINING & LICENSE 5-LOAD REDUCTION F-ADMINISTRATIVE 9-0THER (EXPLAIN)

G-0PERAT10NAL ERROR (EXPLAIN)

H-0THER (EXPLAIN)

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l ENCLOSURE 2 PLANT HATCH UNIT 2 NRC DOCKET 50-366 MONTHLY OPERATING REPORT dan nry 1991 TABLE OF CONTENTS h91 Narrative Report E2-1 Operating Data Report E2-2 Average Daily Power Level E2-3 Unit Shutdowns and Power Reductions E2-4 000116

PLANT E. 1. HATCH - UNIT TWO DOCKET N0: 50-366 DATE: 1991 NARRATIVE REPORT FEBRUARY COMPLETED BY: R. 4,M. BEARD TELEPHONE: (912) 367-7781 x2878 JANUARY l 0000 Shift was maintaining rated thermal power.

JANUARY 26 2315 Shift began reducing load to approximately 700 GMWe for Turbine Control Valve and Turbine Bypass Valve Testing.

JANVARY 27 0221 Shift began returning the unit to rated thermal power.

JANUARY 31 2400 Shift is maintaining rated thermal power.

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OPERATING DATA REPORT . DOCKET NO: '50-366--

DATE: 1991 l

' FEBRUARY COMPLETED BY: R. 4,M.. BEARD TELEPHONE: (912) 367-7781 x2878 l OPERATING STATUS: '

1. UNIT NAME: E. 1. HATCH - UNIT-TWO

2. REPORTING PERIOD:. JANUARY 1991

3. LICENSED THERMAL POWER 2436

.4. NAMEPLATE RATING-(GROSS MWe : (MWt : 850 .,

i

5. DESIGN ELECTRICAL RATING (N T MWe): 784

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWe):- 794

7. MAXIMUM DEPENDABLE CAPACITY NET MWe 761' 8.JIF CHANGES OCCUR'IN CAPACITY (RATINGS): l SINCE LAST REPORT, GIVE REASONS: NO CHANGES

(ITEMS' 3 THROUGH Maximum Depen 7)dable-Capacities for 1991 are 794 MWe'(Gross) and 7 '

The values were determined by Southern Company Services- from 1990 operational data.-

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

10. REASONS FOR RESTRICTION,cIF ANY: N/A THIS MONTH YEAR-TO-DATE CUMULATIVE 111.l HOURS.IN REPORTING ~ PERIOD:- 744,0 744 99d65-12.LNUMBER OF-HOURS REACTOR'WAS CRITil r 744.0. 744.0 74826.7

'13. REACTOR RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0 o

14. HOURS GENERATOR'ON 1.INE: -744.0. 744.0 71906.0

'15'. UNIT RESERVE SHUTDOWN HOURS: 0.0-0.0

. 0.0 i

16. GROSS-THERMAL ENERGY GENERATED (MWHt): 1806504. 1806504 158100097 i

17. GROSS ELECTRICAL ENERGY GENERATED,(MWHe 596130 596130 518M750 1

18. NET ELECTRICAL ENERGY GENERATED (MWHe):):

19.JUNIT SERVICE-FACTOR:

573503 570503 49394618 100.0% 100.0%~ 72.0%

20.LUNIT AVAILABILITY FACTOR: 100,0% .100.0% 72.0%

~215 UNIT CAPACITY. FACTOR USING MDC' NET): -100.8% 100,8%- 64.7%

22. UNIT CAPACITY FACTOR. USING DER NET): 97.8% 97.8% 63.1%

23 UNIT FORCED OUTAGE.RA E: 0.0% 0.0% 7.6%

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

Refueling Outage tentatively scheduled for March 20. 1991: 69 Days 25.!!F SHUTDOWN AT END OF. REPORT PERIOD, ESTIMATED DATE OF STARTUP:

N/A 1

- 26. UNITS.lN TEST' STATUS _(PRIOR TO COMMERCIAL OPERATION):

N/A

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1 PLANT E. 1. HATCH - UNIT TWO DOCKET NO: 50-366 DATE: FEBRUARY 4, 1991 AVERAGE DAILY POWER LEVEL COMPLETED BY: R. M. BEARD TELEPHONE: (912) 367-7781 x2878 DAY Net MWe 1 .............. 765 2 .............. 766 3 .............. 764 4 .............. 763 q 5 .............. 766 l 6 .............. 764 7 .............. 761 l 8 .............. 769 9 .............. 771 10 .............. 767 11 .............. 763 12 .............. 766 13 .............. 7/c ,

14 .............. 771 1 15 .............. 765 16',............. 763 17 .............. 770 18 .............. 770 19 .............. 769 20 .............. 769 21 .............. 770-22 .............. 771 23 .............. 771 24.............., 770 25 ............,, 770 26 .............. 770 27 .............. 759 28 .............. 767 29 .............. 766 30 ............., 760

.31 .............. 765 i

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1 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO: 50-366 DATE: FEBRUARY 4, 1991 UNIT NAME: E. 1. HATCH - UNIT TWO COMPLETED BY: R. M. BEARD TELEPHONE: (912) 367-7781 x2878 REPORT MONTH: JANUARY 1991 R H S E E Y T A T LICENSEE SC Y S H EVENT T0 COMPONENT CAUSE & CORRECTIVE P DVRATION 0 0 REPORT ED CODE ACTION TO N O . -. DATE .E (HOURS) N D NUMBER ME (SUBCODE) PREVENT RECURRENCE No-significant power reductions this month. ,

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

F-FORCED. A-EQUIPMENT FAILURE (EXPLAIN) 1-MANUAL RE0VCTION IN AVERAGE

-S-SCHEDULED B-MAINTENANCE OR TEST 2-MANUAL SCRAM DAILY POWER LEVEL FOR C-REFUELING 3-AUTOMATIC SCRAM THE PRECEDING 24 HOURS.

D-REGULATORY RESTRICTION 4-CONTINVAT10NS E-0PERATOR TRAINING & LICENSE 5-LOAD REDUCTION F-ADMINISTRATIVE ~ 9-0THER (EXPLAIN)

G-0PERATIONAL ERROR (EXPLAIN)

H-0THER (EXPLAIN)

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