HL-5706, Monthly Operating Repts for Oct 1998 for Hatch Nuclear Plant Units 1 & 2.With

Monthly Operating Repts for Oct 1998 for Hatch Nuclear Plant Units 1 & 2.With

ML20195D290
Person / Time
Site:	Hatch
Issue date:	10/31/1998
From:	Shannon Rogers, Sumner H SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
HL-5706, NUDOCS 9811170335
Download: ML20195D290 (7)

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Lewis Seneer Southern Nucleer -

, Vice Presidert. Operating Company. lac. l

• HatchProjectSupport 40 Irwemess Parkway i Post Office Box 1295 Birmingham. Alabarna 35201

, Tel 205992.7279 Fax 205.992.0341 SOUTHERN h COMPANY  !

November 9, 1998 Energ to Serve Yourbid*

i Docket Nos. 50-321 50-366 HL-5706

' U.S. Nuclear Regulatory Commission ATTN: Document Control Desk l Washington, D. C. 20555 l Edwin I. Hatch Nuclear Plant Monthlv Operat_i.pa Reports Ladies and Gentlemen:

Enclosed are the October 1998 Monthly Operating Reports for Edwin I. Hatch Nuclear Plant i Unit 1, Docket No. 50-321, and Unit 2, Docket No. 50-366. These reports are submitted m a accordance with Technical Specifications 5.6.4. j j

Respectfully submitted, H L. Sumner, Jr.

IFIJeb l

Enclosures:

1. October MontHy Operating Report for Plant Hatch Unit 1 l 2. October Monthly Operating Report for Plant Hatch Unit 2 L

L - cc: Southem Nuclear Operatina Company l Mr. P. H. Wells, Nuclear Plant General Manager I

SNC Document Management (R-Type A02.001)

E.S. Nuclear Regulatory Commission. Washinaton D. C. I Mr. L. N. Olshan, Project Manager - Hatch U. S. Nuclear Regulatory Commission. Reaion 11 Mr. L. A. Reyes, Regional Administrator Mr. J. T. Munday, Senior Resident inspector - Hatch

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. , t p~ ' Uti?ity Data Institute. Inc.

Ms. Barbara Lewis - McGraw-Hill Companics 9811170335 98103? M PDR R ADOCK 050003210 PDR {

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, .,t Enclosure i

,  : Plant Hatch Unit i Monthly Operating Report October 1998 Table of Contents P_agg Operating Data Report El-1 i

Unit Shutdowns and Power Reductions El-2 l 1

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. , l l l OPERATING DATA REPORT I

Docket No.: 50-321 i Unit Name: E.1. Hatch Unit 1 I l Date: November 2,1998 '

Completed By: S. B. Rogers Telephone: (912) 367-7781 x2878 l Operating Statua

{ 1. Reporting Period: OCTOBER 1998 l 2. Design Electrical Rating (Net MWe): 822.1

3. Maximum Dependable Capacity (Net MWc): 800 l Ihin. Month Year To Date Cumulative

4. Number of Hours Reactor Was Critical: 745.0 7,296.0 157,276.2

5. Hours Generator On Line: 736.8 7,287.8 151,853.6

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

7. Net Electrical Energy Generated: 583,119 5,782,662 106,875,067 l

CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES D:te Tag No. Event Description No challenges this month. 1 1

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l Docket No.: 50-321 Unit Name: E. l. Hatch Unit 1 Date: November 2,1998 Completed By: S. B. Rogers

Telephone: (912) 367-7781 x2878 j

Reporting Period: OCTOBER 1998

{ Type Method of F; Fort.e ' Duration Shutting Cause/ Corrective Actions t

No. Date a: scn.eui.e (Hours) Reason (1) Down (2) Comments

• l 98-001 981001 F 8.2 B 5 Shift manually tripped the Main Turbine with the unit '

at approximately 120 GMWe following a load reduction from rated thermal power. The unit was removed frum the grid due to reduced flow through l

a strainer in the Stator Cooling Water system. '

• See continuation below.

(1) Reason: (2)' MtiTHOD A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip / Scram C-Refueling 3-Automatic Trip / Scram D-Regulatory Restriction 4-Continuation E-Operator Training / License Examination S-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain) l CAUSE/CORRECTNE ACTION / COMMENTS:

• The strainer in the Stator Cooling Water system was replaced. The unit was tied to the grid and returned to rated thermal power later that day.

NARRATIVE REPORT Shift continued the load reduction which began on 9/30/98 in preparation for removing the Main Generator from the grid to replace a strainer in the Stator Cooling Water system. Shift manually tripped the Main Turbine on 10/1/98 with the unit at approximately 120 GMWe. The strainer in the Stator Cooling Water system was replaced. The unit was tied to the grid and returned to rated thermal power later that day. Shift maintained rated thermal power for the remainder of the month.

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Enclosure 2 i Plant Hatch Unit 2 f.

Monthly Operating Report October 1998 t-Table of Contents P

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Operating Data Report E2-1 Unit Shutdowns and Power Reductions E2-2 l

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e 'O OPERATING DATA REPORT Docket No.: 50-366

~ Unit Name: E.1. Hatch Unit 2 Date: November 2,1998 Completed By: S. B. Rogers Telephone: (912) 367-7781 x2878 Operatina Status-

1. Reporiing Period: OCTOBER 1998

2. Design Electrical Rating (Net MWe): 829.7

3. Maximum Dependable Capacity (Net MWe): 818 IhisRonth Yearla.Date Cumulative

4. Number of Hours Reactor Was Critical: 0.0 5,999.2 132,843.2 1

5. Hours Generator On Line: 0.0 5,999.2 128,850.9 i

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0  ;

7. Net Electrical Energy Generated: -6488 4,793,594 91,606,340 1

CHALLENGES TO MAIN STEAM SAFETY I RELIEF VALVES Date Tag No. Event Description No challenges this month.

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, UNIT SHUTDOWNS Docket No.: 50-366

, Unit Name: E. I. Hatch Unit 2 Date: November 2,1998 Completed By: S. B. R_ogers Telephone: (912) 3G7-7781 x2878 Reporting Period: OCTOBER 1998 Type Method of P: Faced Duration Shutting Cause/ Corrective Actions No. Date s seiwu.4 (Hours) Reason (1) Down (2) Comments98-001 980908 8 745.0 C 4 ActMties associated with the 14th Refueling Outage continued.

(1) Reason: (2) MtHHOD A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip / Scram C-Refueling 3-Automatic Trip / Scram D-Regulatory Restriction 4-Continuation E-Operator Training / License Examination 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain) .

CAUSE/ CORRECTIVE ACTION / COMMENTS:

NARRATIVE REPORT Activibes associated with the 14th Refueling Outage continued throughout the month of October. The outage was extended past the scheduled end date due to the Moisture Separator Reheaters retube project taking longer to complete than originally scheduled.

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