ML20207D579

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Monthly Operating Repts for Aug 1986
ML20207D579
Person / Time
Site: Hatch  Southern Nuclear icon.png
Issue date: 08/31/1986
From: Gucwa L, Kilroy T
GEORGIA POWER CO.
To:
NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
SL-1271, NUDOCS 8612310091
Download: ML20207D579 (9)
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NAERATIVE REPORT UNIT 1 Unit'at 780 GMWe, 2436 GMWT.

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' August 1st 0000 No major equipment problems.

August 2nd 0016 Load reduction begins for weekly turbine testing.

August 2nd 0213 Reactor experiences automatic scram from turbine trip due to high reactor water level.

August 2nd 0246 -Plant startup in progress.

August 2nd 2215 Reactor declared critical.

August 3rd 0511 Generator tied to line.

August 6th 2300 Unit back to rated M'aximum Dependable Capacity (MDC).

.~ August 9th 0008 Load reduction for weekly turbine testing.

August 9th 0110 Unit back at rated MDC.

August 16th 2311 Load reduction for weekly turbine testing.

August 17th 0105 Unit back at rated MDC.

August 21st 2330 Load reduction for steam leak repair on the .*3 5th stage feedwater heater.

August 23rd 2400 Unit back to rated MDC.

August 31st 2400 Unit operating at 100% power, 99.5% core flow. No major equipment problems.

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1 OPERATING DATA REPORT s h

DOCKET NO. 50-321 DATE- 09-05-86 COMPLETED BY: Tom Kilroy TELEPHONE (912) 367-7781'x 2882 OPERATING STATUS

1. Unit Name: E. I. Hatch Nuclear Plant Unit 1
2. Reporting Period: 08-86
3. Licensed Thermal Power (MWt): 2436
4. Nameplate Rating (Gross MWe): 809.3 l S. Design Electrical Rating (Net MWe): 777.3 -1
6. Maximum Dependable Capacity (Gross MWe): 801.2 l
7. Maximum Dependable Capacity (Net MWe): 768.0
8. If changes occur in capacity ratings (Items Number 3 through 7) since last report, give reasons: N/A l 9. Power level to which restricted, if any (Net MWe): No restrictions l 10. Reasons for restrictions, if any: .N/A This Month Yr-to-Date Cumulative i
11. Hours In Reporting Period 744 5831 93502 l
12. Number of Hours Reactor was Critical .724.5 2779.63 64905.833
13. Reactor Reserve Shutdown Hours 0 0 0
14. Hours Generator On-Line 717.5 2487.90 61049.003
15. Unit Reserve Shutdown Hours 0 0 0
16. Gross Thermal Energy Generated (MWH) 1664952 5617776 130249266
17. Gross Electrical Energy Generated (MWH) 53534n 1800230 42042360-
18. Net Electrical Energy Generated (MWH) 511007 1695352 39909440
19. Unit Service Factor (%) 96.44% 42.67% .65.29%
20. Unit Availability Factor (%) 96.44% 42.67% 65.29%- l
21. Unit Capacity Factor (% Using MDC Net) 89.43% 37.86% 55.58%
22. Unit Capacity Factor (% Using DER Net) 88.36% 37.40% 54.91%
23. Unit Forced Outage Rate 3.62% .6.46% 17.07%
24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each): N/A
25. If shutdown at end of report period, estimated date of startup: N/A
26. Units in Test Status (Prior to Commercial Operation): N/A E-2
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AVERAGE DAILY: UNIT POWER LEVEL' DOCKET NO.. 50-321 DATE: 09-05-86 COMPLETED BY: Tom Kilroy TELEPHONE (912) 367-7781 x 2882 MONTH: AUGUST 86~

DAY AVERaGC DAILY POWER LEVEL D'AY ' AVERAGE DAILY POWER LEVEL (HWe-Net) (MWe-Net) 1 751 17 745' 2 41 18 748 3 155 19 749 4 526 20 751

, 5 692 21 748 6 740 22 510 7 745 23 670 8 747 24 746 9 745 25 748 10 744 26 747 11 745 27 747 12 742 28 751 13 744 29 763 l 14 746 30 757 15 747 31 753 j 16 749 l

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UNIT SHUTDOWNS AhD POWFR REDUCTIONS-DOCKET NO. 50-321 UNIT NAME HATCH ONE COMPLETED BY Tom Kilroy TELEPHONE (912) 367-7781 (2882) DATE SEPTEMBER 05, 1986

-REPORT MONTH AUGUST- ,

i R S i .E Y T A METHOD OF LICENSEE SC

} Y S SHUTTING- EVENT T O_ CAUSE & CORRECTIVE l P DURATION O DOWN REPORT ED COMPONENT ACTION TO NO. DATE E (HOURS) N REACTOR NUMBER ME CODE PREVENT RECURRENCE a

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86-029 860802 S 1.95 B 5 N/A HA TURBIN Load Reduction _for

! Turbine Testing.

I 86-033 860802 F 26.97 A 3 1-86-30 CA VESSEL Automatic _ SCRAM from-Turbine Trip due to i High Reactor Water. ,

} Level.

I 86-031 860803 S 89.82 A 5 N/A CA VESSEL Ramping from above SCRAM.

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!86-032 860809 S 1.03 B 5 N/A HA TURBIN Load' Reduction for Weekly Turbine Testing.

I 86-033 860816 S 1.90 B 5 N/A HA TURBIN Load Reduction for Weekly Turbine Testing.

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!86-034 860821 F 48.50 A 5 N/A HH HEATER "lB" Sth Stage Feedwater Heater Steam Leak Repair.

F: Forced Reason: Method: Events reported involve

S
Scheduled A-Equipment Failure (Explain) 1-Manual a greater than 204 reduction B-Maintenance or Test 2-Manual Scram in average daily power level C-Ref ueling 3-Automatic Scram for the preceeding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

D-Regulatory Restriction 4-Continuations E-Operator Training & License 5-Load Reduction Examination 9-Other (Explain)

F-Administrative

] G-Operational Error (Explain) l H-Other-(Explain)

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NARRATIVE REPORT UNIT 2 August 1st .0000 Unit at 460 GMWe, 1535 GMWT. 2B circulating water pump shaf t and bearing repair continues.

August 28th 2132 2B circulating water pump placed back in operation. However, reduced power operation continues due to inoperability of reactor water clean up.

August 29th 1204 SCRAM on MSIV closure due to low low low level signal received from level instrument that was being valved in.

August 29th 0115 Unit in cold shutdown.

August 31st 2230 Reactor declared critical.

August 31st 2400 Unit off line. Startup expected within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

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OPERATING DATA REPORT'

-DOCKET NO. 50-366 DATE 09-05 . COMPLETED BY: Tom Kilroy- . ,

TELEPHONE (912) 367-7781'x 2882 OPERATING STATUS

1. Unit Name: E. I. Hatch Nuclear Plant Unit 2
2. Reporting Period: 08-86
3. Licensed Thermal Power (MWt): 2436
4. Nameplate Rating (Gross MWe): 820.0
5. Design Electrical Rating (Net MWe): 784.0
6. Maximum Dependable Capacity (Gross MWe): 803.9
7. Maximum Dependable Capacity (Net MWe): ~777.0
8. If changes occur in capacity ratings (Items Number 3 through 7) since last report, give reasons: N/A
9. Power level to which restricted, if any (Net MWe) No Restrictions
10. Reasons for restrictions, if any: N/A This Month Yr-to-Date Cumulative
11. Hours In Reporting Period 744 5831 61128
12. Number of Hours Reactor was critical 685.6 5458.5 43057.1
13. Reactor Reserve Shutdown Hours 0 0 0
14. Hours Generator On-Line 684.1 5387.5 . -41255.7
15. Unit Reserve Shutdown Hours 0 0 0
16. Gross Thermal Energy Generated (MWH) 1044360 10475076 88658282
17. Gross Electrical Energy Generated (MWH) 308330 3354510 29136010 ,
18. Net Electrical Energy Generated (MWH) 292213 3189431 27728085
19. Unit Service Factor (%) 91.9% 92.4% 67.5%
20. Unit Availability Factor (t) 91.9% 92.4% 67.5%:
21. Unit Capacity Factor (t Using MDC Net) 50.5% 70.4% .58.4%
22. Unit Capacity Factor (t Using DER Net) 50.1% 69.8% 57.9%
23. Unit Forced Outage Rate 8.lt- 4.9% 10.3%
24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each):

Refueling Outage, September 19, 1986 8 weeks

25. If shutdown at end of report period, estimated date of startup: 9/1/86 1
26. Units in Test Status (Prior to Commercial Operation): N/A E-6

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AVERAGE DAILY UNIT POWER LEVEL R DOCKET NO. 50-366 DATE: 09-05-86 COMPLETED BY: Tom Kilroy ,

TELEPHONE' (912) 367-7781 z 2882' MONTH 08-86 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)'

1 430 17 429 2 430 18 427 3 433 19 427 4 431 20 429 5 433 21 428 6 431 22 423 7 430 23 420 8 428 24 423 9 430 25 421 10 439 26 419 11 435 .27 419 12 434 28 420 13 431 29 212 14 432 30 0 15 432 31- 0 16 430 E-7

UNIT SHUTDOWNS AND POWER REDUCTIONS ',c

. DOCKET NO., 50-366 UNIT NAME HATCH'TWO -*-

1 I COMPLETED BY Tom Kilroy TELEPHONE (912) 367-7851 (2882) DATE SEPTEMBER'05, 1986 REPORT MONTH AUGUST R S E Y

! T A METHOD OF LICENSEE SC l ~Y S SHUTTING EVENT TO CAUSE & CORRECTIVE P . DURATION O DOWN' REPORT' ED COMPONENT- ACTION.TO 3 NO. DATE E (HOURS) N REACTOR NUMBER ME CODE PREVENT RECURRENCE

!86-054 860801 F 669.6 A 5 N/A HF PUMPZZ "2B" Circulating Pump Bearing Failure.86-055 860828 S 14.5' A 5 U/A- CG ZZZZZZ Holding at Reduced Load Due to Reactor i Water Clean Up System Problems.

I 86-056 860829 F 59.9' H 3 2-86-22 . CD ZZZZZZ SCRAM from MSIV i Closure'due to Low Low l Low Level Signal Received from Level Instrument'that was i ' being valved in.

i F: Forced Reason: Method: Events reported involve 1-Manual

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{ S: Scheduled A-Equipment Failure (Explain) a greater than 20t reduction B-Maintenance or Test 2-Manual Scram in average daily power level l C-Refueling 3-Automatic Scram for the preceeding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

j D-Regulatory Restriction 4-Continuations l E-Operator Training & License 5-Load Reduction Examination 9-Other (Explain)

P-Administrative

G-Operational Error (Explain) j H-Other (Explain)

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V fIs G6orgia Powar Company 333 Piedmont Avenue Atlanta, Georgia 30308 Telephone 404 526-6526 Maihng Address:

Fbst Office Box 4545 Atlanta, Georgia 30302 h Georgia Power L T. Gucwa tw soutmyn e rxtoc system Manager Nuclear Safety and Licensing September 15, 1986 Nuclear Operations NRC Monthly Operating Report File: X7GJ10-H000 Log: SL-1271 Director Office of Management and Program Analysis U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Dear Sir:

Enclosed is the NRC Monthly Operating Report for Plant Hatch Unit 1, Docket Number 50-321, and for Unit 2, Docket Number 50-366. This report is submitted pursuant to Technical Specifications Section 6.9.1.10.

Sincerely, h#

p L. T. Gucwa LGByrnes/lc Enclosure c: Georgia Power Company U. S. Nuclear Regulatory Commission Mr. J. P. O'Reilly Dr. J. N. Grace, Regional Administrator Mr. J. T. Beckham, Jr. Mr. P. Holmes-Ray, Sr. Resident Mr. H. C. Nix, Jr. Inspector - Hatch Mr. C. Tabet G0-NORMS 9I 0166C

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