HL-5691, Monthly Operating Repts for Sept 1998 for Ei Hatch Nuclear Plant,Units 1 & 2.With

Monthly Operating Repts for Sept 1998 for Ei Hatch Nuclear Plant,Units 1 & 2.With

ML20154F921
Person / Time
Site:	Hatch
Issue date:	09/30/1998
From:	Shannon Rogers, Sumner H SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
HL-5691, NUDOCS 9810130007
Download: ML20154F921 (7)

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Operatog Company,Inc.

Vice President Hatch Project Support'~ 40invemess Parkway Post Office Box 1295 ~

Birmingham, Alabama 35201

. . . Tel205.992.7279 Fax 205.992.0341 SOUTHERN h COMPANY EnergyroServe %urWorld" October 5,'1998 Docket Nos. 321 50-366 HL-5691 U.S. Nuclear Regulatory Commission NITN: Document Control Desk

-. Washington, D. C. 20555 l Edwin 1. Hatch Nuclear Plant l

Monthly OpgIntina Reports j i

Ladies and Gentlemen: ,

Enclosed are the September 1998 Monthly Operating Reports for Edwin 1. Hatch Nuclear Plant Unit 1, Docket No. 50-321, and Unit 2, Docket No. 50-366. Dese reports are submitted in accordance with Technical Specifications requirements.

Respectfully submitted, i M i H. L. Sumner, Jr. 2 IFIleb.

Enclosures:

1. September Monthly Operating Report for Plant Hatch Unit 1 ,

2, September Monthly Operating Report for Plant Hatch Unit 2 l

cc: Southern Nuclear Operatina Compa_ny

Mr. P. H. Wells, Nuclear Plant General Manager

[ SNC Document Management (R-Type A02.001)

L l U. S. Nuclear Renulatory Commission. Washington D. C.

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

- Utility Data Institute. Inc. /

b /

Ii Ms. Barbara Lewis - McGraw-Hill Companies I-9810130007 9909303' PDR ADOCK 05000321 R PQ

UNIT SHUTDOWNS Docket No.: _50-366

. , Unit Name: E. l. Hatch Unit 2 Date: October 1,1998 Completed By: S. B. Rogers Telephone: (912) 367-7781 x285 Reporting Period: SEPTEMBER 1998 Type Method of P. Forced Dufstion Shutting Cause/Correctrve Actions No. Date s. sr#.u.e (Hours) Reason (1) Down (2) Comments98-001 980908 S 551.8 C 2 The unit entered the 14th Refueling Outage when Shift inserted a manual scram and tripped the Main Turbine.

(1) Reason: (2) METHOD 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 Unit 2 operated at maximum achievable thermal power with End of Cycle Coastdown in progress until 9/7/98 when Shift began reducing load in preparation for a unit shutdown. The unit entered the 14th Refueling Outage en 9/8/98 when Shift inserted a manual scram and tripped the Main Turbine. Shift began unloading a predetermined number of fuel bundles on 9/12/98 to facilitate in-vessel work and inspection. The initial fuel movements were completed on 9/13/98. Shift began fuel shuffle on 9/25/98 and the shuffle was completed cn 9/29/98. Actmbes associated with the 14th Refueling Outage continued for the remainder of the month.

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l OPERATING DATA REPORT Docket No.: 50-366 l .

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

Operating _ Status

1. Reporting Period: SEPTEMBER 1998

2. Design Electrical Rating (Net MWe): Y29.7

3. Maximum Dependable Capacity (Net MWe): 818 IhutMonth Year To Date C.Umulative

4. Number of Hours Reactor Was Critical: 168.2 5,999.2 132,843.2

5. Hours Generator On Une: 168.2 5,999.2 128,850.9

6. Unit Reserve Shutdown Hours: OTO~ 0.0 0.0

7. Net Electrical Energy Generated: 118,501 4,800,082 91,612,828 CHALLENGES TO MAIN STEAM SAFETY! RELIEF VALVES Date Tag No. Event Description No challenges this month.

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Enclosure 2 ,

Plant Hatch Unit 2 l l

Monthly Operating Report l September 1998

! Table of Contents Page  !

Operating Data Report E2-1  !

. Unit Shutdowns and Power Reductions - E2-2 l l

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UNIT SHUTDOWNS Docket No.: _50-321

. , Unit Name: E. l. Hatch Unit i Date: October 1,1998 Completed By: FB. Roge.rs _

Telephone: (912) 367-7781 x2878 Reporting Period: SEPTEMBER 1998 Type Method of F: roue Duration Shutting Cause/ Corrective Actions No. Date e. scn e (Hours) Reason (1) Down (2) Comments No unit shutdowns occurred this month.

(1) Reason: (2) METHOD 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/CORRECTNE ACTION / COMMENTS:

NARRATIVE REPORT Unit 1 operated at rated thermal power for most of the month of September. Shift reduced load to approximately 700 GMWe on 9/21/98 to remove the "A" Cooling Tower from service for structural repairs. Shift began slowly increasing unit load later that day while monitoring condenser vacuum. The unit was returned to rated thermal power on 9/23/98 with the A" Cooling Tower out of service. The "A" Cooling Tower was returned to service on 9/28/98. Shift began reducing load 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 continued the load reduction with the unit at approximately 120 GMWe at the end of this reporting period.

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OPERATING DATA REPORT t

Docket No.: 50-321

, Unit Name: E.1. Hatch Unit 1 Date: October 1,1998 Completed By: S. B. Rogers ,

Telephone: (912) 367-7781 x2878 Operatlogatatus l

1. Reporting Period: SEPTEMBER 1998

2. Design Electrical Rating (Net MWe): 822.1 i

3. Maximum Dependable Capacity (Net MWe): 800 j

IhiaMonth Year To Dale Cumulative I

4. Number of Hours Reactor Was Critical: 6,551.0

, 720.0 156,531.2 l S. Hours Generator On Line: 720.0 6,551.0 151,116.8 i 6. Unit Reserve Shutdown Hours. 0.0 0.0 0.0

7. Net Electrical Energy Generated: 564,130 5,199,543 106,291,948 I

l l CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES Dite Tag No. Event Description i

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o Enclosure 1 Plant Hatch Unit 1 Monthly Operating Report September 1998 i

Table of Contents P_ ass l

i Operstmg Data Report El-1  ;

Unit Shutdowns and Power Reductions El-2 i

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