ML20077R380

From kanterella
Jump to navigation Jump to search
Monthly Operating Rept for Dec 1994 for DBNPS Unit 1
ML20077R380
Person / Time
Site: Davis Besse 
Issue date: 12/31/1994
From: Wolf G, Jeffery Wood
TOLEDO EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
KB-94-0016, KB-94-16, NUDOCS 9501200198
Download: ML20077R380 (8)
v • d • e


Text

-

- e s

TOLEDO '

l

%mus EDISON A Cerderior Energy Company AO N AVENUE TOLEDO. OHIO 43652-0001 January 16, 1995 KB-94-0016 Docket No. 50-346 License No. NPF-3 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C.

20555 Gentlemen:

Monthly Operating Report lecember, 1994 Davis-Besse Nuclear Poses Jtation Unit 1 Enclosed are ten copies of the Monthly Operating Report for Davis-Besse Nuclear Power Station Unit No. 1 for the month of December, 1994.

If you have any questions, please contact G. M. Wolf at (419) 321-8114.

Very truly yours,

/ s.

,1 i

hn K. Wood Plant Manager Davis-Besse Nuclear Power Station GMV/dmc Enclosures cc:

L. L. Gundrum NRC Project Manager j

J. B. Martin Region III Administrator S. Stasek NRC Senior Resident Inspector, Stop 4030 950120019s 941231

{DR ADOCK 05000346 PDR

/

O AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-0346 UNIT Davis-Besse Unit 1 DATE 1 94 COMPLETED BY GERRY WOLF TELEPHONE 419-F F 9114 MONTH DECEMBER 1994 AVERAGE DAILY POWER LEVFL AVERAGE DAILY POWER LEVEL DAY (MWe-Net)

DAY (MWe-Net) 1 742 17 883 2

521 18 884 3

518 19 885 4

520 20 884 5

689 21 883 6

881 22 884 7

881 23 885 l

8 884 24 884 l

9 885 25 851 10 885 26 860 11 885 27 885 12 885 28 882 1

13 883 29 884 14 880 30 884 15 886 31 884 16 883

~.

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-0346 UNIT Davis-Besse Unit 1 DATE 1 94 COMPLETED BY Gerry Wolf TELEPHONE 419-321 -8114 MONTH NOVEMBER 1994 l

AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY (MWe-Net)

DAY (MWe-Net) 1 0

17 650 2

0 18 856 3

0 19 874 4

0 20 873 5

0 21 873 6

0 22 883 7

0 23 884 l

8 0

24 885 9

0 25 884 10 0

26 884 11 0

27 883 12 0

28 883 13 0

29 830 14 0

  • 30 819 15 92
  • Net Generation corrected i

16 420

. ~..

_.. =

OPERATING DATA REPORT DOCKET NO 50-0346 DATE 1-3-94 COMPLETED BY GerryWolf TELEPHONE 419 - 321 - 8114 OPERATING STATUS

1. Unit Narne: Davis-Besse Unit 1 Notes

' 2. Reporting Period December 1994

3. Ucensed Thermal Power (MWt) 2772
4. Nameplate Rating (Gross MWe) 925
5. Design Electrical Rating (Not MWe) 906
6. Maximum Dependable Capacity (Gross MWe) 913
7. Maximum Dependable Capacity (Not MWe) 868
8. N Changes Occur in Capacity Ratings l

(Items number 3 through 7) since last report, give reasons:

i

9. Power Level To Which Restricted, N Any (Not MWe):
10. Reasons For Restrictions, if Any (Not MWe).

This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 744.00 8,760.00 143,953.00 l'
12. Number Of Hours Reactor Was Critical 744.00 7,705.32 89,945.77
13. Reactor Reserve Shutdown Hours 0.00 0.00 5,532.00
14. Hours Generator On-Line 744.00 7,667.17 87,690.90
15. Unit Reserve Shutdown Hours 0.00 0.00 1,732.50

~,

16. Gross Thermal Energy Generated (MWH) 1,949,936 20,324,304 226,096,073
17. Gross Electrical Energy Generated (MWH) 655,200 6,731,467 73,071,488 l
18. Net Electrical Energy Generated (MWH) 621,836 6,384,999 68,911,368 l
19. Unit Service Factor 100.00 87.52 60.92
20. Unit Availability Factor 100.00 87.52 62.12
21. Unit Capacity Factor (Using MDC Net) 96.29 83.97 55.15 j
22. Unit Capacity Factor (Using DER Net) 92.25 80.45 52.84 l
23. Unit Forced Outage Rate 0.00 0.00 19.84

+

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
25. If Shut Down At End Of Report Period, Estimated Date of Startup:
26. Units in Test Status (Prior to Commercial Or eration):

I Forecast Achieved INITIAL CRITICAUTY INITIAL ELECTRICliY COMMERCIAL OPERATION i

i

-s.g

- ~...... -...

-,a

.n,,

OPERATING DATA REPORT DOCKET NO 50 - 0346 DATE 1 94 COMPLETED BY Gyrry Wolf TELEPHONE 419 - 321 - 8114 OPERATING STATUS

1. Unit Name: Davis-Besse Unit 1 Notes
2. Reporting Period November 1994
  • Gross Electrical Energy
3. Ucensed Thermal Power (MWt) 2772 Generated value corrected.
4. Nameplate Rating (Gross MWe) 925 Cumulative and Year-to-Date
5. Design Electrical Rating (Net MWe) 906 values corrected accordingly.
6. Maximum Dependable Capacity (Gross MWe) 913
7. Maximum Dependable Capacity (Net MWe) 868
8. If Changes Occurin Capacity Ratings (ltems number 3 through 7) since last report, give reasons:
9. Power Level To Which Restricted, if Any (Net MWe):
10. Reasons For Restrictions, if Any (Net MWe):

This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 720.00 8,016.00 143,209.00
12. Number Of Hours Reactor Was Critical 407.47 6,961.32 89,201.77
13. Reactor Reserve Shutdown Hours 0.00 0.00 5,532.00
14. Hours Generator On-Line 371.17 6,923.17 86,946.90
15. Unit Reserve Shutdown Hours 0.00 0.00 1,732.50
16. Gross Thermal Energy Generated (MWH) 948,689 18,374,368 224,146,137
17. Gross Electrical Energy Generated (MWH) 316,313 6,076,268 72,416,289 293,722 5,763,163 68,289,533
18. Net Electrical Energy Generated (MWH)
19. Unit Service Factor 51.55 86.37 60.71
20. Unit Availability Factor 51.55 86.37 61.92
21. Unit Capacity Factor (Using MDC Net) 47.00 82.83 54.94
22. Unit Capacity Factor (Using DER Net) 45.03 79.36 52.63
23. Unit Forced Outage Rate 0.00 0.00 19.97
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
25. If Shut Down At End Of Report Period, Estimated Date of Startup:
26. Units in Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION i

4

OPERATING DATA REPORT DOCKET NO 50-0346 DATE 1 94 COMPLETED BY Gerry Wolf TELEPHONE 419 -321 - 8114 OPERATING STATUS

1. Unit Name: Davis-Besse Unit 1 Notes
2. Reporting Period October 1994
  • Gross Electrical Energy
3. Licensed Thermal Power (MWt) 2772 Generated value corrected.
4. Nameplate Rating (Gross MWe) 925 Cumulative and Year-to-Date
5. Design Electrical Rating (Net MWe) 906 values corrected accordingly.
6. Maximum Dependable Capacity (Gross MWe) 913
7. Maximum Dependable Capacity (Net MWe) 868
8. If Changes Occurin Capacity Ratings (items number 3 through 7) since last report, give reasons:
9. Power Level To Which Pectricted, if Any (Net MWe):
10. Reasons For Restrictions, if Any (Net MWe):

This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 745.00 7,296.00 142,489.00
12. Number Of Hours Reactor Was Critical 2.85 6,553.85 88,794.30
13. Reactor Reserve Shutdown Hours 0.00 0.00 5,532.00
14. Hours Generator On-Line 1.00 6,552.00 86,575.73
15. Unit Reserve Shutdown Hours 0.00 0.00 1,732.50
16. Gross Thermal Energy Generated (MWH) 665 17,425,679 223,197,448
17. Gross Electrical Energy _ Generated (MWH) 132 5,759,955 72,099,976
18. Net Electrical Energy Generated (MWH) 0 5,469,441 67,995,810
19. Unit Service Factor 0.13 89.80 60.76
20. Unit Availability Factor 0.13 89.80 61.98
21. Unit Capacity Factor (Using MDC Net) 0.00 86.37 54.98
22. Unit Capacity Factor (Using DER Net) 0.00 82.74 52.67
23. Unit Forced Outage Rate 0.00 0.00 20.04
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
25. If Shut Down At End Of Report Period, Estimated Date of Startup:

November 15,1994

26. Units in Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CR.TICALITY j

INITIAL ELECTRICITY COMMERCIAL OPERATION i

l l

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-346 UNIT NAME. Davis-Besse #1 DATE:

January 3.1995 Completed by:

G. M. Wolf i

Report Month December 1994 Tiphere:

(419) 321-8114 15 Licensee Cause & Corrective wogg

~

gn E

f, j j

Action to U

'E g g Event E

5 No.

Date U3 0

3g

>u fy 5*

2 Report #

m Prevent Recurrerice i

12 94-12-01 F

N/A B

5 N/A N/A N/A-Power reduced to 60 percent to correct the high vibration on Main Feed Pump Turbinel.

i I

2 3-4 F: Forced Reason Method.

Exhibit G - Instructions for Preparaten of Data S: Scheduled A-Equipment Failure (Explain) 1-Manual Entry Sheets Sr Lkm Event Report (LER)

B-Maintenance or Test 2-Manual Scram File (NUREG-0161)

C-Refueling 3-Automatic Scram D-Regulatory Restnction 4-Contmuation from 5

E-Operator Traming & License E=nination Previous Month Exhibit 1 - Same Source F-Admmistrative 5-Load Reduction

' Report challanges to Power Operated Relief Valves G-Operational Error (Explain) 9-Other (Explain)

(PORVs and L

-i Code Safety Valves (PCSVs)

H-Other (Explain)

q OPERATIONAL

SUMMARY

On December 1,1994 at 0445 hours0.00515 days <br />0.124 hours <br />7.357804e-4 weeks <br />1.693225e-4 months <br />, Reactor power was reduced from

)

approximately 88 percent full power to 85 percent full power in response to high vibration on Main Feed Pump Turbine (MFPT) 1. At 2130 hours0.0247 days <br />0.592 hours <br />0.00352 weeks <br />8.10465e-4 months <br /> a manual power reduction was initiated from 85 percent full power to determine the cause of the high vibration. Sixty percent full power was reached at 0012 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> on December 2, and MFPT 1 was shutdown to perform a hot alignment check of the unit, realign the Main Feed Pump to the MFPT, and disassemble and inspect the MFPT 1 low pressure end bearing. When repairs were complete on December 5,1994 at 0858 hours0.00993 days <br />0.238 hours <br />0.00142 weeks <br />3.26469e-4 months <br />, a manual power increase was initiated from 60 percent full power. At 1725 hours0.02 days <br />0.479 hours <br />0.00285 weeks <br />6.563625e-4 months <br /> and approximately 94 percent full power the power increase was briefly halted to perform Main Turbine control valve testing and vibration monitoring of MFPT 1 unit. When testing was complete at 2117 hours0.0245 days <br />0.588 hours <br />0.0035 weeks <br />8.055185e-4 months <br />, power was slowly increased from 94 to approximately 100 percent full power, which was attained at 2243 hours0.026 days <br />0.623 hours <br />0.00371 weeks <br />8.534615e-4 months <br /> on December 5,1994.

Reactor power was maintained at this level until December 14,1994, when at 0900 hours0.0104 days <br />0.25 hours <br />0.00149 weeks <br />3.4245e-4 months <br />, Feedwater Heater 2-5 tripped on high level while troubleshooting the normal level controller. Reactor power was manually reduced to approximately 97 percent to maintain proper deaerator levels. The heater was restored to nonnal operation at 1052 hours0.0122 days <br />0.292 hours <br />0.00174 weeks <br />4.00286e-4 months <br />, and Reactor power was slowly increased to approximately 100 percent full power, which was attained at j

1511 hours0.0175 days <br />0.42 hours <br />0.0025 weeks <br />5.749355e-4 months <br />.

Reactor power was maintained at this level until December 25,1994, when at 1348 hours0.0156 days <br />0.374 hours <br />0.00223 weeks <br />5.12914e-4 months <br />, a manual power reduction was initiated per the Load Dispatcher's Request. Power was reduced to approximately 90 percent full power, which was attained at 1448 hours0.0168 days <br />0.402 hours <br />0.00239 weeks <br />5.50964e-4 months <br />. On December 26,1994, at 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br />, Reactor power was manually increased from 90 percent to approximately 100 percent i

full power, which was attained at 0820 hours0.00949 days <br />0.228 hours <br />0.00136 weeks <br />3.1201e-4 months <br />. Reactor power remained at 100 percent full power for the rest of the month.

j i

1

..

Retrieved from "https://kanterella.com/w/index.php?title=ML20077R380&oldid=4393826"