ML20195F982

Monthly Operating Rept for Oct 1998 for Millstone,Unit 3

ML20195F982
Person / Time
Site:	Millstone
Issue date:	10/31/1998
From:	Emmons K NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20195F919	List: B17459, Forwards MOR for Oct 1998 & Corrected Page of MOR for Sept 1998 for Millstone,Unit 3 ML20195F982 ML20195F987
References
NUDOCS 9811200145
Download: ML20195F982 (5)

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U.S. Nuclear Regulatory Commission B17459%ttrehment 1\P g)1 i

REFUELING INFORMATION REQUEST l October 1998 l

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1. Name of the facility: Millstone Unit 3

2. Scheduled date for next refueling outage: May 15.1999

3. Scheduled date for restart following refueling: .Julv 5.1999

4. Will refueling or resumption of operation thereafter require a technical t specification change or other license amendment?

Yes - Full Core Offload.

5. . Scheduled date(s) for submitting licensing betion and supporting information:

Full Core Offload - 12/98.

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6. Important licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures:

None.

j 7. The number of fuel assemblies (a) in the core and (b) in the spent fuel storage j pool:

1 In Core: '(a) 193 In Spent Fuel Pool: (b) 416 ,

8. The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies:

Erg.spnt storaae caoacity: 756.

-Increase in licensed storage caoacity olanned for total of 1860 locations.

9.. The projected date of the last refueling that can be discharged to the spent fuel pool assuming present license capacity:

End of Cvcle 7.

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i 9811200145 981112 S PDR ADOCK 05000423 R pop

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U.S. Nuclear Regulatory Commission B17450%ttachment1\P g)2 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-423 UNIT: Millstone Unit 3 DATE: 11/9/98 COMPLETED BY: K.W. Emmons TELEPHONE: (860) 447-1791 Ext. 6572 MONTH: Oct-98 DAY AVG DAILY POWER LEVEL DAY AVG. DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 1096 17 1149 2 611 18 1147 3 1116 19 1150 4 1145 20 1152 5 1146 21 1149 6 1148 22 1144 7 1152 23 1151 8 1103 24 1151 9 1108 25 1145 10 1097 26 1139 11 1022 27 1140 12 973 28 420 13 1004 29 0 14 982 30 0 15 1137 31 0 16 1145 l

l ' INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each 2

- day in the reporting month. Compute to the nearest whole megawatt.

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U.S. Nuclear Regul;t

ry C:mmissi:n l B17459%tt:chment 1\P:g3 3 I

l OPERATING DATA REPORT l UNIT NAME: Millstone Unit 3 l DATE: 11/09/98 l COMPLETED BY: K. W. Emmons TELEPHONE: (860)447-1791 Ext 6572 OPERATING STATUS

1. Docket Number 50-423

2. Reporting Period Oct 98 Notes: i

3. Utihty Contact K. W. Emmons l

4. Licensed Thermal Power (MWt): 3411 l

5. Nameplate Rating (Gross MWe): 1253

6. Design Electrical Rating (Net MWe): 1153.6

7. Maximum Dependable Capacity (Gross MWe): 1184.2

8. Maximum Dependable Capacity (Net MWe): 1137.0 ,

9. If Changes Occur in Capacity Ratings (Items Number 4 Through 8) Since Last Report, l Give Reasons: I N/A

10. Power Level To Which Restricted, If any (Net Mwe): N/A

11. Reasons For Restrictions,if Any: N/A This Month Yr.-To-Date Cumulative

12. Hours in Reporting Period 745.0 7296.0 109800.0, 13 Number Of Hours Reactor Was Critical 692.0 2701.1 69781.2

14. Reactor Reserve Shutdown Hours 0.0 0.0 6525.8

15. Hours Generator On-Line 661.3 2505.1 68417.5

16. Unit Reserve Shutdown Hours 0.0 0.0 0.0

17. Gross Thermal Energy Generated (MWH) 2173356.0 7826886.0 224764614.1 )

18. Gross Electrical Energy Generated (MWH) 753919.5 2675007.0 77580110.1

19. Net Electrical Energy Generated (MWH) 719079.1 2454018.1 73692327.4

20. Unit Service Factor 88.8 34.3 62.3

21. Unit Availability Factor 88.8 34.3 62.3

22. Unit Capacity Factor (Using MDC Net) 84.9 29.6 59.0

23. Unit Capacity Factor (Using DER Net) 83.7 29.2 58.2

24. Unit Forced Outage Rate 11.2 65.5 30.8

25. Unit Forced Outage Hours 83.7 4764.2 30490.3 Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): N/A

27. If Currently Shutdown, Estimated Date of Startup: N/A l 28. Units in Test Status (Prior to Commercial Operation):

l Forecest Achieved j INITIAL CRITICAUTY N/A N/A

INITIAL ELECTRICITY N/A N/A COMMERCIAL OPERATION N/A N/A i

U.S. Nuclear Regulatory Commission .

G17459%ttachment 1Page 4 UNIT SHUTDOWNS AND POWER REDUCTIONS $

DOCKET NO.: 50-423 UNIT NAME: Millstone Unit 3 *

, DATE: 11X)9/98 COMPLETED BY: K. W. Emmons ~

TELEPHONE: 1860) 447-1791 X6572 REPORT MONTH: October 1998 No. Date Type' Duration Reason

• Method of License System Componmd Cause & Corrective (Hours) Shutting Event Code' Code

• Actum to

., Down Reactor

• Report # Prevent Recurrence 98-06 10-01-98 F O A 5 98-039 EF . INVT Reduced power to 48% due to blown fuse in inverter.

Replaced cwcurt cards associated with the *F1* fuse.

98-07 10-28-98 F 83.7 A 2 -

SH COND ' Manual plant trip due to high condensate conductivity.

Water entered system throug5 cracked tube in *C*

condenser waterbox.

'F: Forced Reason ' Method 'IEEE Standard 805-1984, S: Scheduled A - Equipment Failure (Explain) 1 - Manual " Recommended Practices B - Maintenance or Test 2 - Manual Scram for System identrficatum in i C - Refueling . 3 - Automatic Scram Nuclear Power Plants and D - Regulatory Restriction 4 - Continued from Previous Month Related Facilities

• E - Operator Training & License Examination 5 - Power Reduction (Duration = 0)

F - Administrative 6 - Other (Explain) .* IEEE Standard 803A-1983, G - Operational Error (Explain) " Recommended Practices l H - Other (Explain) for Uneque identification in Power Plants and Related Facilities - Component Function identifiers"

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Docket No. 50-423 B17459 Attachment 2 i Millstone Nuclear Power Station, Unit No. 3 1 l

Revised Page " Average Daily Unit Power Level" i Month of September l l

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! November 1998 i

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