ML19339B441

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Monthly Operating Rept for Apr 1978
ML19339B441
Person / Time
Site: Yankee Rowe
Issue date: 05/08/1978
From: Sjogren R
YANKEE ATOMIC ELECTRIC CO.
To:
Shared Package
ML19339B440 List:
References
78-4, NUDOCS 8011060888
Download: ML19339B441 (6)


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YANKEE ATOMIC NUCLEAR POWER STATION MONDILY STATISTICAL REPORT 78 4 FOR THE MONTH OF APRIL, 1978 i

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OPERATING DATA REPORT DOCKET NO.

50-29 DATE 780508 R.M.

N gren COh!PLETED BY TELEP110NE (617)366-9011 x.218 OPERATINC STATUS Yankee Rowe Notes Clocks advanced one

1. Unit Name:

hour on 4-30-78 to 973

2. Reporting Pen,od:

establish daylight 600 savings ticle.

3. Licensed Thermal Power (SIWt):

185

4. Nameplate Rating (Gross 51We):

175

5. Design Electrical Rating (Net SIWE):

180

6. Siaximum Dependable Capacity (Gross 51We):

175

7. 51aximum Dependable Capacity (Net 51We):
8. If Changes Occur in Capacity Ratings (items Number 3 Through 7) Since Last Report.Give Reasons:

None

9. Power Level To Which Restricted.If Any(Net 31We):

A

10. Reasons For Restrictions. If Any:

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This Sion h Yr to-Date Cumulative

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719' 2,879

11. Hours in Reporting Period
12. Number Of Hours Reactor Was Critical 719 2.720.79 126.713.97 0

0 0

13. Reactor Reserve Shutdown Ho.,5 719 2,704 122,488.13
14. Hours Generator On Line
15. Unit Resene Shutdown Hours 0

0 0

16. Gross Thermal Energy Generated (51WH) 429.845.8 1.608.124.1 65.023,763.01
17. Gross Electrical Energy Generated (51WH) 132,181.2,,,

496.429.5 19.986,776.2 124.314.2 466,729.2 18.707,231.1

18. Net Electrical Energy Generated (51WH) 100.0 93.9 80.0
19. Unit Senice Factor 100.0 100.0 not availabic
20. Unit Availability Factor 98.0 92.6 72.4
21. Unit Capacity Factor (Using SIDC Net) 4 98.0 92.6 72.4
22. Unit Capacity Factor (Using DER Net) 0.0 5.6 1.6
23. Unit Forced Outage Rate
24. Shutdowns Scheduled Oser Next 6 alonths (Type.Date.and Duration of Each):

Refueling October 20, 1978

  • For 6 weeks.

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25. If Shut Down At End Of Report Period. Estimated Date of Startup:
26. Units in Test Status (Prior to Commercial Operation):

Forecast Achieved 2

INITIAL CRITICALITY f

INITIAL ELECTRICITY COststERCIAL OPER ATION (9/77)

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AVERAGE DAILY UNIT POWER LEVEI.

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DOCKET NO.

50-29 UNIT Yankee Rowe DATE 780508 COMPLETED BY R.M. Sjogren TELEPHONE (617)366-9011 x.218 MONTH Aoril 1978 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe Net)

(MWe Net) g 174 173.3 y7 2

166 6 I8 173'.3 3

173.7 39 172.8 4

171.0 20 172.9 5

173.9 173.3 21 173.8 173.2' 6

22 173*4 173.2 7

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173.1 173 1 24 173.3 173.2 9

25 10 173.3 26 173.1 11 173.5 27 173.0 l73*4 172.9 12 28 173.3 172.9 13 29 14 173.2 30 167.6 l

15 173.3 3g 173.3 16 INSTRUCTIONS On this format. list the average daily unit power levelin te* eA : for mach day in the reporting month. Compute to the nearest whole rnegawatt.

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s DOCKET NO.

50-29 UNIT SilUTDOWNS AND POWER REDUCTIONS UNIT NAME Yankee Rowe DATE 7Anqng COMPLETED BY R M-Sj ortren REPORT MONT1I April 1978 TELEPilONE (617)366 cin11 x.218 "i

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.Yk Licensee

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  • Cause & Corrective No.

Date g

gg

,g g 5 Event

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Action to Prevent Recurrence H

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~dc Report #

to O

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4/2/78 S

6.2 B

N/A N/A N/A N/A Throttle / Control Valve Exercise gg

'5 4/30/78 S

6.4 B

N/A N/A r/..

N/A Repacked No. 1 Boiler Feed Pump (P-1-1)

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2 3

4 F: Forced Reason:

Method:

Exhibit G-Instructions 5: Scheduled A. Equipment Failure (Explain) 1 Manual for Preparation of Data H4faintenance oilest 2-Manual Scram.

Entry Sheets for Licensee C-Refueling

3. Automatic Scram.

Event ReporI(LER) File (NUREG-D Regulatory Restriction 4-Other (Explain) 0161)

E-Operator Training A License Examination F Administrative 5

G Operational Error (Explain)

Exhibit I - Same Source 01/77)

II Other (lixplain)

DOCKET NO.

50-29 UNIT Yankee Rowe DATE 780508 4

COMPLETED BY R. M. Sjogren TELEPHONE (617)366-9011 x.218 REPORT N0hTH April 1978 SU4fARY OF OPERATING EXPERIENCES 4/2 At 0100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> a load reduction was commenced to conduct a throttle valve exercise. At 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br /> plant load was 140 MWe and the valve exercise was begun. At 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> the valve exercise was completed and power escalation began. At 0710 hours0.00822 days <br />0.197 hours <br />0.00117 weeks <br />2.70155e-4 months <br /> the plant returned to full power operation.

4/30 At 0905 hours0.0105 days <br />0.251 hours <br />0.0015 weeks <br />3.443525e-4 months <br /> a load reduction was commenced to repack No. 1 Boiler Feed Pump (P-1-1). At 1020 hours0.0118 days <br />0.283 hours <br />0.00169 weeks <br />3.8811e-4 months <br /> plant load was c=160 MWe and repacking of the pump began. At 1420 hours0.0164 days <br />0.394 hours <br />0.00235 weeks <br />5.4031e-4 months <br /> the pump was repacked and power escalation began. At 1530 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.82165e-4 months <br /> the plant returned to full power operation.

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