ML19284A716

Monthly Operating Rept 79-02 for Feb 1979

ML19284A716
Person / Time
Site:	Yankee Rowe
Issue date:	03/12/1979
From:	Sjogren R YANKEE ATOMIC ELECTRIC CO.
To:
Shared Package
ML19284A714	List: ML19284A713 ML19284A716
References
79-02, 79-2, NUDOCS 7903150237
Download: ML19284A716 (5)

Text

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YANKEE ATOMIC NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 79-02 FOR THE MONTH OF FEBRUARY, 1979 700315 0 A3 7

,e OPERATING DATA REPORT DOCKET NO.

50-29 DATE 790312 COSIPLETED BY _L M. Siorgren TELEPIIONE 617-366-9011 X2281 OPERATING STATUS Yankee Rowe Notes

1. Unit Name:

2. Reporting Period:

February 1979 600

3. Licensed Thermal Power (31Wt):

185

4. Nameplate Rating (Gross 31We):

175

5. Design Electrical Rating (Net 31We):

180

6. Slaximum Dependable Capacity (Gross alWe):

175

7. Sf aximum Dependable Capacity (Net 31We):

S. 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 31We):

10. Reasons For Restrictions. If Any:

[

s This alonth Yr.-to.Date Cumulative 672 1,616

11. Ilours in Reporting Penod

12. Number Of Ilours Reactor Was Critical 559.13 1,293.93 132,484.83

13. Reactor Reserve Shutdown llours 0

0 0-

14. Ilours Generator On-Line 558.48 1,292.28 128,170.28

15. Unit Reserve Shutdown 11ours 0

0 0

16. Gross Thermal Energy Generated (31Wil) 325,132 746,704 68,320,249.11

17. Gross Electrical Energy Generated (SIWH) 10 3. 4 91. 0__ _ _.

238.249.4 20,999,197.4 IS. Net Electrical Energy Generated (31WII) 97.264.54 223,908 19,657,788.73

19. Unit Senice Factor 83.1 91.3 79.9

20. Unit Asailability Factor 83.I 91.3 79.9

21. Unit Capacity Factor (Using SIDC Net) 82.7 90.4 72.5

22. Unit Capacity Factor (Using DER Net) 82.7 90.4 72.5

23. Unit Forced Outage Rate 12.6 6.5 1.7

24. Shutdowns Scheduled Oser Next 6 31onths (Type. Date,and Duration of Each):

None

25. If Shur Down At End Of Report Period. Estimated Date of Startup:

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

Forecast Achiesed INITIA L CRITICA LITY INITI A L ELECTRICITY CONI.\\lERCI AL OPERATION (9/77)

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-D L' NIT Yankee Rowe DATE 790312 COMPLETED BY R.M.

Sineren TELEPHONE 617-366-9011 x2281 510NT11 Februarv, 1979 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL D1We-Net)

(51We-Net )

174.8 I

174.9 17 2

174.8 jg 174.9 3

174 9 174 9 19 4

174.9 20 174.9 5

174.8 2]

174.9 174.9 6

174.8 77 174.8 7

23 174.8 31.2 8

174.8 24 9

174.8 0

25 10 174.8 26 0

11 174.9 27 0

17 174.8 0

73 13 174.8 79 34 174.8 30 15 174.8 33 16 174 9 INSTRUCTIONS On this format. list the average daily unit power lesel in 5tWe. Net for each day in the reporting month. Compute to the nearest whole megawatt.

(9177) w

/

UNIT SiluTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-29 i

UNIT N A\\lE Yankee Rowe DATE 74n119 COMPLETED ilY R.

M.

Siocren REl' ORT MON' fit Fnbro irv - 1979 TELLPilONE 617-166-9011 x2281 e-.

.[ E Licensee E -r,,

b 't, Cause & Currective No.

Date g

gg g

jg5 Eveni gy M

gii,,n g oE 5

j di C ItcPort #

LE 0 yU Prevent itecorrence O

2' 2/24/79 S

33.3 B

Auto-Repaired turbine control valve matic No. 2 servo motor.

Scram 3

2/25/79 F

80.22 A

.~anual 79-09 RB CRDRVE Control Rod No. 2 stopped withdrawal at Con-Scram 42".

Reason unknown at this time.

trol' Replace drive mechanism with spare.

Rod No. 2 Inop-erabl e 1

2 3

4 1:. 1 ori cil Itcason:

Methoil:

Exlobii G - Inst ructions S. St heilnicil A l'ipnpinent Failure (Explain) 1 Manual for Piep.iration of Data It-Mainten. nice or Test N.lannal Serain.

Entry Sheets f or 1.ieensee

~

C ltctuclini, 3 Antoinatic Scrain.

Eveni llepos t (LI It) l'ile (NUltt:G.

D Itegulatory Itcstriction 4 Other (lixplain) 0161)

l. Opciator l'iaining, & License E.xannuation it Aihnini,t alive 5

G (1pciational I e sos (l.xpl.on)

Exlot,it 1 - Sanie Sonice P8/ /7) 11 Othe s (1-' x plain )

DOCKET NO.

50-29 UNIT Yankee Rowe DATE 790312 CO.lPLETED BY R. M.

Sjogren TELEPfiONE 617-366-9011 x2281 REPORT MONTli Februarv, 1979

SUMMARY

OF OPERATING EXPERIENCES 2/24 At 0001 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> commenced a load reduction for scheduled maintenance outage.

At 0629 hours0.00728 days <br />0.175 hours <br />0.00104 weeks <br />2.393345e-4 months <br /> a reactor scram eccurred from 80 MWe.

2/25 At 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> the turbine was released to the Operations Department. At 1323 hours0.0153 days <br />0.368 hours <br />0.00219 weeks <br />5.034015e-4 months <br /> a critical approach was begun and at 1509 hours0.0175 days <br />0.419 hours <br />0.0025 weeks <br />5.741745e-4 months <br /> the reactor was critical.

At 1543 hours0.0179 days <br />0.429 hours <br />0.00255 weeks <br />5.871115e-4 months <br /> control rod No. 2 failed to move beyond 42" and group A was dropped to take the reactor subcritical.

2/26 At 0845 hours0.00978 days <br />0.235 hours <br />0.0014 weeks <br />3.215225e-4 months <br /> a plant cooldown was commenced from = 500 F to repair No. 2 control rod.

At 1940 hours0.0225 days <br />0.539 hours <br />0.00321 weeks <br />7.3817e-4 months <br /> shutdown cooling was placed in operation.

2/27 At 0245 hours0.00284 days <br />0.0681 hours <br />4.050926e-4 weeks <br />9.32225e-5 months <br /> a cooldown of the pressurizer was commenced at 0730 hours0.00845 days <br />0.203 hours <br />0.00121 weeks <br />2.77765e-4 months <br /> the plant was in mode 5.

2/28 At 2400 hours0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> the pl ant was still shutdown in operational mode 5 for No. 2 control rod repair.