ML20216H777

Monthly Operating Rept for Aug 1997 for Monticello Nuclear Generating Plant

ML20216H777
Person / Time
Site:	Monticello
Issue date:	08/31/1997
From:	Paustian H, Voth M NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9709170064
Download: ML20216H777 (5)

Text

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Northem States Power Company Monticello Nuclear Generating Plant 2%7 West Hey 75 Aonticello, Minnesota 55362 9637 September 8,1997 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50 263 License No. DPR 22 Submittal of Monticello Monthly Operating Report for August,1997 in accordance with Monticello Technical Specification 6,7.A 3, tue report of operating statistics for the Monticallo Nuclear Generating Plant for the Month of August is provided.

Please contact Marcus H. Voth, Project Manager - Licensing at (612) 271-5116 if you rc. quire further information.

(L Marcus H. Voth Project Manager - Licensing Nuclear Energy Engineering Dept.

c: Regional , ninistrator - lil, NRC NRR Project Manager, NRC Sr Resident inspector, NRC State of Minnesota Attn: Kris Sanda J Silberg -

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-263 UNIT Monticello--

DATE 9- 2-97 COMPLETED BY H. H. Paustian TELEPHONE 612/295-5151 MONTH OF August DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 427. 17 550, 3 530, 18 551.

3 536. 19 552.

4 542. 20 552.

5 545. 21 551.

6 544, 22 550.

7 543, 23 548, 8 516. 24 550.

9 484. 25 546, 10 547, 26 547.

11 546, 27 547.

12 548. 28 544.

13 548. 29 546.

14 550, 30 546, 15 550, 31 546, 16 550.

INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt, i

OPERATING DATA REPORT DOCKET NO. 50-263

• ' DATE 9- 2-97 COMPLETED BY H. H. Paustian TELEPHONE 612/295-5151 OPERATING STATUS

] Notes ]

1. Unit Name -

Monticello ) )

3. Reporting period: August ] ]

3. Licensed Thermal Power (MWt): 1670 ) ]

4. Nameplate Rating (Gross MWe): ~~

576.5 ) )

5. Design Electrical Rating (Net MWe): 552.9 ) )

6. Maximum Dependable Capacity (Gross MWe): 571.5 ) )

7. Maximum Dependable Capacity (Net MWe): 543.5 ) )

8. If' Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:

9. Power Level To Which Restricted, If Any (Net MWe): N/A

10. Reasons For Restrictions, If Any: __N/A THIS MONTH YR.-TO-DATE CUMULATIVE

11. Hours In Reporting Period 744 5831 229416

12. Number Of Hours Reactor Was Critical 744,0 38641.4 187257.3

13. Reactor Reserve Shutdown Hours 0.0 0.0 940,7

14. Hours Generator On-Line 744.0 3844.1 184160.5

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0 16.-Gross Thelmal Energy Generated (MWH) 1226316 6372239 286244150

17. Gross Electrical Energy Generated (MWH) 420891 2203458 96876973

18. Net Electrical Energy Generated (MWH) 401635 2112852 92717161

19. Unit Service Factor 100.0% 65.9% 80.3%

20. Unit Availability Factor '100.0% 65.9% 80.3%

al. Unit Capacity Factor (Using MDC Net) 99.3% 66.7% 75.3%

-33. Unit Capacity Factor (Using DER Net) 97.6% 65.5% 74.1%

23. Unit Forced Outage Rate 0.0% 34.1% 4.4%

34. Shutdowns Scheduled Over Next 12 Months (Type, Date, and Duration of Each)

_ Refueling' Outage, 3/27/98-4/30/98, 34 days

25. If Shut Down At End Of Report Period, Estimated Date Of Startup:

26. Units In Test Status (Prior to Commercial Operation) : N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE

DOCKET NO. 50-263 DATE 9- 2-97 COMPLETED BY H. H. Paustian TELEPHONE 612/295-5151 MONTH AUG 08-01-97 Plant continuing startup following installation to of new ECCS suction strainers.

08-03-97 08-03-97 to Power operation.

08-08-97 08-08-97 Power reduced to 25% for furmaniting of PT-1176, to repairs to the Generator Condtion Monitor, and fuel 08-09-97 preconditioning. s 08-09-97 to Power operation.

08-31-97 Note: Power operation defined as essentially 100% of rated power except for weekend load drops for specified surveillance testing.

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.*_t 50-263- .-

UNIT SHUTDOWNS AND POWER REDUCTIONS D00TT NO.

INIT NAME Monticello -

DATE T 97 --

REPORT MONTH August '6 2/ $515 t.

Date Duration Reason Method LER Cause & Corrective No. Sbstem Cobe. Action to (hours) (2) of No. e Prevent Recurrence Shutdown (4) (5)

(3) 0.0 H 4 N/A B0 SIR Continuation of startup after 4 08-01-97 F installation of new ECCS suction strainers.-

. 0.0 B 4 N/A IO FU Power reduction to 25% to repair Cenerator l 5 08-08-97 S Condition Monitor, repair root valve of pressure:

transmitter, and perform other misc. m intenance.

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3 4 2

1 Method: Draft IEEE Standard F: Forced Reason: 1-Manual 805-1984(P805-DS)

S: Scheduled A-Equipment Failure (Explain) 2-Manual Scram B-Maintenance or Test 3-Automatic Scram 5 C-Refueling .

4-Other (Explain) IEEE Standard 803A-1983 D-Regulator Restriction E-Operator Training & License Examination F-Administrative G-Operational Error (Explain)

. H-Other (Explain)

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