ML20029E568

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Monthly Operating Rept for Apr 1994 for Monticello Nuclear Generating Plant
ML20029E568
Person / Time
Site: Monticello 
Issue date: 04/30/1994
From: Richard Anderson, Paustian H
NORTHERN STATES POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9405190108
Download: ML20029E568 (5)


Text

Northem States Power Company 414 Nicollet Mall Minneapolis, Minnesota 55401 1927 Telephone (612) 330-5500 May 10, 1994 Monticello Technical Specifications Section 6.7.A.3 US Nuclear Regulatory Commission Attna Document Control Desk Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Monthly Operating Report April, 1994 Attached is the Monthly Operating Report for April, 1994 for the Monticello Nuclear Generating Plant.

W f

Roger O Anderson Director Licensing and Management Issues Director, Office of Resource Management c:

Regional Administrator-III, NRC NRR Project Manager, NRC NRC Resident Inspector State of Minnesota - Kris Sanda Attachment

..- s pp 7

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.s:

i 9405190108 940430

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PDR ADOCK 05000263 PDR R

i

OPERATING DATA REPORT DOCKET NO.

50-263 DATE 5-2-94 COMPLETED BY H.

H.

Paustian TELEPHONE 612/295-5151 OPERATING STATUS

] Notes

]

1. Unit Name Monticello

)

)

2.

Reporting period:

April

)

]

3. Licensed Thermal Power (MWt) 1670

)

]

4.

Nameplate Rating (Gross MWe).

569

)

]

5.

Design Electrical Rating (: Net MWe).

545.4

)

6. Maximum Dependable Capacity (Gross MWe)

__564

)

7.

Maximum Dependable Capacity (Net MWe):

536

)

)

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 719 2879 200160
12. Number Of Hours Reactor Was Critical 676.5 2836.5 162212.2
13. Reactor Reserve Shutdown Hours 0.0 0.0 940.7
14. Hours Generator On-Line 666.4 2826.4 159427.1
15. Unit Reserve Shutdown Hours 0.0 0.0 0.0
16. Gross Thermal Energy Generated (MWH) 1100772 4700714 245965494
17. Gross Electrical Energy Generated (MWH) 372366 1595948 83150611
18. Net Electrical Energy Generated

(' WH) 358461 1538825 79557618 M

19. Unit Service Factor 92.7%

98.2%

79.6%

20. Unit Availability Factor 92.7%

98.2%

79.6%

21. Unit Capacity Factor (Using MLC Net) 93.0%

99.7%

74.2%

22. Unit Capacity Factor (Using DER Net) 91.4%

98.0%

72.9%

23. Unit Forced Outage Rate 7.3%

1.8%

3.6%

24. Shutdowns Scheduled Over Next 12 Months (Type, Date, and Duration of Each)
Refueling Outage - 9/15/94 - 39 days
25. If Shut Down At End Of Report Period, Estimated Date Of Startup:N/A
26. Units In Test Status (Prior to Commercial Operation)- N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION 1

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-263 UNIT Monticello--

DATE 5 94 COMPLETED BY H.

H.

Paustian TELEPHONE 612/295-5151 MONTH OF April DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 545.

17

-7.

2-545.

18

395, 3

546.

19 542.

4 547.

20

543, 5

_543.

21 547.

i 6

545.

22 544.

7 542.

23 546.

8 544.

24 545.

9 547.

25 544.

10 545.

26 546.

11 549.

27 546.

12 545.

28 547.

13 545.

29 545.

14 545.

30

546, 15 409.

16

-10.

l 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.

m

4 NARRATIVE

SUMMARY

'OF OPERATING EXPERIENCE 3

y DOCKET NO.

50-263 DATE 5-2-94 COMPLETED BY H.

H.

Paustian TELEPHONE 612/295-5151 i

MONTH __

APR 04-1-94 to Power operation.

04-15-94 04-15-94 High winds caused voltage fluctuations on offsite power grid, which subsequently tripped both Circulating Water Pumps and both Reactor Recirculation Pumps.

The Reactor scrammed on loss of Condenser Vacuum.

04-18-94 to Power operation.

04-30-94 Note: Power operation defined as essentially 100% of-rated power except for weekend load drops'for specified surveillance testing.

Cr en -

UNIT ShVfD014NS AND POWER REDUCTIONS DOCKET NO.

50-263 L' NIT NAME Monticelto DATE 02-94 COMPLETED BY 7. H. Paustian

REPORT MONTH April TELEPHONE _~612/295-5151 i

No.

Date Ty(pe Duration Reason Method LER System Comp.

Cause & Corrective.

1)

(hours)

(2) of No.

Code Code Action to Shutdown (4)

(5)

Prevent Recurrence (3) 3 04-15-94 F

52.6 H

3 94-003 EA 55 High winds caused voltage fluctuations on the off-site power grid, tripping Circ Water Pumps and Pr.

Recirc Pumps. Rx scranuned on Low Cond Vacuum.

i.

i 1

2 3

4 I

F: Forced Reason:

Method:

Draft IEEE Standard i

S: Scheduled A-Equipment Failure (Explain) 1-Manual 805-1984(P805-D5)-

4 B-Maintenance or Test 2-Manual Scram s

C-Refueling 3-Autmatic Scram 5

i D-Regulator Restriction 4-Other (Explain)

IEEE Standard 803A-1983 E-Operator _ Training & License Examination F-Administrative G-Operational Error (Explain)

H-Other (Explain) i i

1 L

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