HL-5604, Monthly Operating Repts for Mar 1998 for Edwin I Hatch Nuclear Plant,Units 1 & 2

Monthly Operating Repts for Mar 1998 for Edwin I Hatch Nuclear Plant,Units 1 & 2

ML20216C669
Person / Time
Site:	Hatch
Issue date:	03/31/1998
From:	Shannon Rogers, Sumner H SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
HL-5604, NUDOCS 9804150003
Download: ML20216C669 (7)

Text

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Lowb Sumner Vice President Southern Nuclear Operating Compa1y,Inc.

Hatch Project Support 40 invemess Parkway Post Office Box 1295

. Birmingham, Alabama 35201 Tel 205.992.7279 Fax 205.992.0341 SOUTHERN L COMPANY Energy to Serve 1 bur World' Pril 7, 1998 Docket Nos. 50-321 50-366 HL-5604 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 l Edwin I. Hatch Nuclear Plant j Monthly Operating Reports Gentlemen:

1 Enclosed are the March 1998 Monthly Operating Reports for Edwin I. Hatch Nuclear l Plant Unit 1, Docket No. 50-321, and Unit 2, Docket No. 50-366. These reports are submitted in accordance with Technical Specifications requirements. j Sincerely, gyvin W H. L. Sumner, Jr.

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Enclosures:

1. March Monthly Operating Report for Plant Hatch Unit I l

2. March Monthly Operating Report for Plant Hatch Unit 2 cc: S<mthern Nuclear Operating Company Mr. P. H. Wells, Nuclear Plant General Manager NORMS U. S Nuclear Reentatorv Commission. Washington D. C.

Mr. L. N. Olshan, Project Manager - Hatch idGi^leb U. S Nuclear Regulatory Commission. Region II Mr. L. A. Reyes, Regional Administrator

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Mr. B. L. Holbrook, Senior Resident inspector - Hatch Utility Data Institute. Inc.

Ms. Barbara Lewis - McGraw-Hill Companies 9804150003 980331 PDR ADOCK 05000321 R PDR J

1 Enclosure 1 Plant Hatch Unit 1 Monthly Operating Report March 1998 Table of Contents PAst Operating Data Report El-1 Unit Shutdowns and Power Reductions El-2 l

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OPERATING DATA REPORT Docket No.: 50-321 Unit Name: E. l. Hatch Unit 1 Date: April 1,1998 Completed By: S. B. Roger _s.

Telephone: (912) 367-7781 x2578 Operating. Status

1. Reporting Period: MARCH 1998  !

2. Design Electrical Rating (Net MWe): 822.1

3. Maximum Dependable Capacity (Net MWe): 800 l Ihl1 Month YeaLInDate Cumulativa i

4. Number of Hours Reactor Was Critical: 744.0 2,160.0 152,140.2_ I

5. Hours Generator On Line: 744.0 2,160.0 146,725.8

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

7. Net Electrical Energy Generated: 597,759 1,730,858 102,823,263 l

CHALLENGES TO MAIN STEAM SAFETY I RELIEF VALVES DGte Tag No. Event Description l l

No challenges this tr.onth.

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UNIT SHUTDOWNS

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

l RIporting Period: MARCH 1998 i Type Method of 7: re.a Duration Shutbng Cause/ Corrective Actions No. Date s. ace auw (Hours) Reason (1) Down (2) Comments No unit shutdowns occurred this month.

(1) Reason: (2) METHOD l 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 l G-Operational Error (Explain)

H-Other (Explain)

CAUSE/CORREC11VE ACTION / COMMENTS:

NARRATIVE REPORT Unit 1 operated at rated thermal power for the entire month of March.

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, Enclosure 2 Plant Hatch Unit 2 Monthly Operating Report March 1998 Table of Contents P_ age Operating Data Report E2-1 Unit Shatdowns and Power Reductions E2-2 1

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• i OPERATING DATA REPORT l

Docket No.: 50-366 Unit Name: ~E.1. Hatch Unit 2 l

Date: Aprin 1998 Completed By: S. B. Rogers __

Telephone: (912) 367-7781 x2878 OperatingEtatus

1. Reporting Period: MARCH 1998

2. Design Electrical Rating (Net MWe): 829.7

3. Maximum Dependable Capacity (Net MWe): 818 1

Ihialdonth Yearlo Date Cumulative

4. Number of Hours Reactor Was Critical: 744.0 2,160.0 129,004.1

5. Hours Generator On Line: 744.0 2,160.0 125,011.7

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

7. Net Electrical Energy Generated: 602,806 1,756.423 88,569,169 CHr.'.LENGES TO MAIN STEAM SAFETY / RELIEF VALVES Date Tag No. Event Desenpton No challenges this month.

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UNIT SHUTDOWNS

• Docket No.: 50-366 -

Unit Name: E.1. Hatch Unrt 2 _

Date: April 1,1998 Completed By: S. B. Rogers Telephone: j912) 36777781 x2tf/5 RIporting Period: MARCH 1998 g i

Type Method of F: Forced Durabon Shutting Cause/Correctve Actions No. Date s. sewma (Hours) Reason (1) Down (2) Comments l

I No unit shutdowns occurred this month.

l (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-Administrati'ta G-Operational Error (Explain)

H-Other (Explain) l CAUSE/ CORRECTIVE ACTIONICOMMENTS:

NARRATIVE REPORT l

Unit 2 operated at rated thermal power for most of the month of March. Shift reduced load to approximately l 485 GMWe on 3/29/98 to facilitate maintenance activities in the condenser bay and perform turbine control {

nlve testing and scram time testing. Selected servo-strainers in the Turbine Electro-Hydraulic '

Control (EHC) System were also replaced. The unit was returned to rated thermal power on 3/30/98. i l

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