HL-5653, Monthly Operating Repts for June 1998 for Ei Hatch Nuclear Plant,Units 1 & 2

Monthly Operating Repts for June 1998 for Ei Hatch Nuclear Plant,Units 1 & 2

ML20236M354
Person / Time
Site:	Hatch
Issue date:	06/30/1998
From:	Shannon Rogers, Sumner H SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
HL-5653, NUDOCS 9807140036
Download: ML20236M354 (7)

Text

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. Lewis Sumner Southern Nuclear Vice Pr:sident Operating Company,Inc.

Hatch hoject Support 40 invemess Parkway Post Office Box 1295 Birmingham. Alabama 35201 Tel 205.992.7279 Fax 205.992.0341 SOUTHERN h COMPANY Enery to Serve YourWorld"  ;

July 8, 1998 Docket Nos' 50-321 .

50-366 HL-5653 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 June 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 in accordance with Technical Specifications requirements.

Sincerely, W h H. L. Sumner, Jr.

IFL/eb

Enclosures:

1. June Monthly Operating Report for Plant Hatch Unit 1

2. June Monthly Operating Report for Plant Hatch Unit 2 cc: Southern Nuclear Operating Company Mr. P. H. Wells, Nuclear Plant General Manager i SNC Document Management (R-Type A02.001) l 1

U. S. Nuclear Rezulatorv Commission. Washington D. C.

l Mr. L. N. Olshan, Project Manager - Hatch U. S Nuclear Rezulatory Commission. Rezion 11 Mr. L. A. Reyes, Regional Administrator

}0 l Mr. J. T. Munday, Senior Resident Inspector - Hatch 1.vvbA Utilitv Da.a institute. Inc.

Ms. Barbara Lewis - McGraw-Hill Companies

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l 9907140036 990630

! PDR ADOCK 05000321 l R PDR ..s-

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. Enclosure 1 Plant Hatch Unit 1 Monthly Operating Report June 1998 Table of Contents ba Operating Data Report El-1 Unit Shutdowns and Power Reductions El-2 l'

OPERATING DATA REPORT Docket No.: 50-321 Unit Name: E. l. Hatch Unit 1 Date: July 1,1998 Completed By: S. B. Rogers Telephone: (912) 367!7781 x2878 OperatingStatus

1. Reporting Period: JUNE 1998

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

3. Maximum Dependable Capacity (Net MWe): 800 This Month Year To Date Cutnulatiya

4. Number of Hours Reactor Was Critical: 720.0 4,343.0 154,323.2

5. Hours Generator On Line: 720.0 4,343.0 148,908.8

6. Unit Reserve Shutdown Hours: 0.0 OT 0.0

7. Net Electrical Energy Generated: 568,244 3,463,908 104,556,313 CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES Date Tag No. Event Description No challenges this month.

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UNIT SHUTDOWNS Docket No.: 50-321 Unit Name: E.1. Hatch Unit 1 Date: July 1,1998 Completed By: TB. Rogers Telephone: (912) 367-7781 x2878 Reporting Period: JUNE 1998 Type Method of F; Forced Dufation Shutting Cause/ Corrective Actions No. Date a: sen.u.a (Hours) Reason (1) Down (2) Comments No unit shutdowns occurred this month.

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

F-Administrates G-Operational Error (Explain)

H-Other (Explain)

CAUSE/ CORRECTIVE ACTION / COMMENTS:

NARRATIVE REPORT l Unit 1 operated at rated thermal power for most of the month of June. Shift began reducing load on 6/5/98 following notification from the National Weather Service that winds in excess of 60 miles per hour (MPH) were cxpected in the area in association with an approaching storm front. Shift terminated the load reduction at approximately 685 GMWe after the National Weather Service updated their prediction that wind speeds should not exceed 50 MPH. Shift performed a rod pattern adjustment while at reduced load and returned the unit to rated thermal power on 6/6/98.

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Enclosure 2 Plant Hatch Unit 2 Monthly Operating Report June 1998 Table of Contents EARC Operating Data Report E2-1 Unit Shutdowns and Power Reductions E2-2 l

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OPERATING DATA REPORT Docket No.: 50-366 Unit Name: E.1. Hatch Unit 2 Date: July 1,1998 Completed By: S. B. Rogers l Telephone: (912) 367-7781 x2878_

OperatlogEtatus

1. Reporting Period: JUNE 1998

2. Design Electrical Rating (Net MWe): 829.7

3. Maximum Dependatie Capacity (Net MWe): 818 This Month Year To Date Cumulative

4. Number of Hours Reactor Was Critical: 720.0 4,343.0 131,187.1

5. Hours Generator On Une: 720.0 4,343.0 127,194.7

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

7. Net Electrical Energy Generated: 574,543 3,501,575 90,314,321 CHALLENGES TO MAIN STEAM SAFETY / RELIEF VALVES Date Tag No. Event Description l

No challenges this month.

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UNIT SHUTDOWNS Docket No.: 50-366 Unit Name: E.1. Hatch Unit 2 Date: July 1,1998 Completed By: S. B. Rogers Telephone: (912) 367-7781 x2878 Reporting Period: JUNE 1998 Type Method of F; Forced Duration Shutting Cause/ Corrective Actions No. Date s scheduled (Hours) Reason (1) Down (2) Comments No unit shutdowns occurred this month.

(1) Reason: (2) METHOD A-Equipmunt Failure (Explain) 1-Manual B-Maintenance or Test 2-ManualTrip/ 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 rated thermal power for most of the month of June. Shift began reducing load on 6/5/98 following notification from the National Weather Service that winds in excess of 60 miles per hour (MPH) were expected in the area in association with an approaching storm front. Shift terminated the load reduction at approximately 670 GMWe after the National Weather Service updated their prediction that wind speeds should not exceed 50 MPH. Shift returned the unit to rated thermal power later that day after the storm front had passed through the area. Shift reduced load to approximately 620 GMWe on 6/21/98 to perform a control rod sequence exchange, scram time testing, and turbine control valve testing. inspection and maintenance were also performed in the condenser bay while at reduced load. The unit was returned to rated thermal power later that day.

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