ML19282B510
| ML19282B510 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 03/12/1979 |
| From: | Sjogren R Maine Yankee |
| To: | |
| Shared Package | |
| ML19282B508 | List: |
| References | |
| NUDOCS 7903150263 | |
| Download: ML19282B510 (5) | |
Text
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.I MAINE YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 79-02 FOR THE MONTH OF FEBRUARY, 1979 700315 0%~3
~*
OPERATING DATA REPORT DOCKET NO.
50-309 DATE 790312 CO.\\1PLETED BY R.
M.
Sjogren TELEPHONE
/617T V6-9011 X2281 OPERATING STATUS Maine Yankee Notes
- 1. Unit Name:
- 2. Reporting Period:
February 1979
- 3. Licensed Thermal Power (.\\lWt):
2.630 864
- 4. Nameplate Rating (Gross 31We):
825
- 5. Design Electrical Rating (Net SIWE):
850
- 6. Staximum Dependable Capacity (Gross Slwe):
810
- 7. Staximum Dependable Capacity (Net alWe):
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 51We):
864 Mk'e approximately 97%
- 10. Reasons For Restrictions. If Any:
Because of maximum allowable steam flow throuch the L. P. turbine.
This Stonth Yr.-to Date Cumulative
- 11. Hours in Reporting Period 672 1,416
- 12. Number OfIfours Reactor Was Critical 672 1.407.11 46,450.82
- 13. Reactor Reserve Shutdown 11ours 0
0 0
- 14. Hours Generator On-Line 672 1,401.68 44,924.85 0
0 0
- 15. Unit Reserve Shutdown Hours 1,631,781 3,409,140 94,523,501*
- 16. Gross Thermal Energy Generated (51WH)
- 17. Gross Electrical Energy Generated (51WH) 552,070 _ 1,152,210 31,020,020 IS. Net Electrical Energy Generated (31WH) 526,460 1.099,226 29.387,422
- 19. Unit Service Factor 100 99 81.3
- 20. Unit Asailability Factor 100 99 81.3
- 21. Unit Capacity Factor (Using SIDC Net) 96.7 95.8 69.5
- 22. Unit Capacity Factor (Using DER Net) 95 94.1 67.0 0
1.0 3.5
- 23. Unit Forced Outage Rate
- 24. Shutdowns Scheduled Oser Next 6.\\lonths (Type. Date,and Duration of Each1:
None
- 25. If Shut Down At End Of Report Period. Estimated Date of Startup:
- 26. Units In Test Status (Prior to Comraercial Operationi:
Forecast Achiesed INITIA L CRITICA LITY INITIA L ELECTRICITY CO\\l.\\tERCIAL OPER ATION Note:
- Corrected for previous error.
(9/77)
AVERAGE DAILY UNIT POWER LEVEL 50-309 DOCKET NO.
UNIT Maine Yankee DATE 790312 CO\\1PLETED BY R. M.
Siocren TELEPHONE (617) 366-9011 X2281 51 0 N Ti{ Fehrnary 1970 DAY AVEF..rGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (51We Net)
(stwe. Net) 1 818 17 pos 2
824 18 827 789 3
19 794 820 826 4
20 5
826 822 21 820 6
22 770 767 825 7
23 821 682 g
g 9
824 25 10 828 26 M4 II 828 27 634 12 828 2S 630 828 13 79 775 14 809 IS 31 826 l e, INSTRUCTIONS On this format.hst the average daily unit power lese! in.\\tWe Net for each day in the reporting month. Compute to the nearest whole megawatt.
(0!77)
DOC ET NO.
50-309 UNIT Maine Yankee DATE 790312 COMPLETED BY R. M.
Sj ogren TELEPliONE (617) 366-9011 X2281 REPORT MONT:1 February 1979 SU:t!ARY OF OPERATING EXPERIENCES At the beginning of the month the plant was operating at ~97% reactor power limited by the 864 MWe maximum load permitted on the low pressure turbine blading.
On February 3, 7, and 14 load reductions to 80% were required to locate and plug leaking condenser tubes.
On Februar 15 during routine CEA exercises, CEA #41 dropped to 155 steps.
During its retrieval, it again dropped - this time to 147 steps.
It was then withdrawn with no further problems. Additional testing, including the taking of electrical traces of the coil power programmer output, could not duplicate the problem or reveal the cause.
Again on February 19, 21 and 22 load reductions to 80% were required to locate and plug additional leaking condenser tubes.
On February 24 a scheduled load reduction to 75% was performed to allow Eddy Current testing of all condenser tubes. Tubes that indicate a wall loss of 40% or greater will be plugged.
On February 28 while still performing ECT on the condenser tubes, an additional scheduled load reduction from 75% to 55% was performed to repair a leak on the P-2A feedwater pump's seal water return line.
Additionally, after the repairs are completed on P-2A, the oil flinger-ring on P-2B will be adjusted for better performance.
At the end of the month the plant was operating at 55% power with repairs being made to the P-2A feedwater pump and ECT being performed on the condenser tubes.
,~
UNIT SilulDOWNS AND POWER REDUCTIONS DOCKET NO.
50-309 UNIT NAh1E Maine Yankee DATE 790312 REPORT A10NTl! February 1979 COMPLETED !!y R.M.
Sionren TELEPil0NE (617) 366-9011 Page 1 of 2 X2281 e.
fi C-ri 3
u>
c4 Cause & Corrective
.2 :-
E
,.5 M Licensee c%
No.
Date g
3 Ej y
,g g 5 Event gg
$3 Action to dE 5 dj C Report #
MU SU Picvent !(ccurrence
{
U e
Q L. R'.
2-3-79 F
8.33 A
1 NA IIF llIEXCil-D Condenser tube leak in the "A" water-to 80%
box-tube plugged.
L.R.
2-7-79 F
13.08 A
1 NA IIF IITEXCll-D Condenser tube leak in the "A" water-to 80%
box - 2 tubes plugged.
L.R.
2-14-79 F
15.92 A
1 NA IIF IITEXCll-D Condenser tube leaks in the "A" and to 80%
2-15-79 "D" waterboxes - 3 tubes plugged.
L.R.
2-19-79 F
10.25 A
1 NA IIF IITEXCil-D Condenser tube leak in the "D" water-to 80%
box - 1 tube plugged.
L.R.
2-21-79 F
8.00 A
1 NA IIF IITEXCll-D Condenser tube leak in the "B" water-to 80%
2-22-79 box - 1 tube plugged.
L.R.
2-22-79 F
7.28 A
1 NA flF llTEXCll-D Condenser tube leak in the "D" water-to 80%
box - 1 tube plugged.
I 2
3 4
F Fo r t ed Itcason:
Method:
Exhibit G -Instructions S. Stheduled A 1 quipment Failure (Explain) 1 -Man nat for Picparation of D. iia ll Maintenance of Test N.t.innat Scrain.
Entry Shecis for 1.icensee C Itclocling
- 3. Automatic Scrain.
Event Iteport (Lliiti i ile (NUlti'.G-D.Itegolatony Itestriction 4-Other ( Explain) 0161) li Opciator l'eaining & License Examination F-Ad mini,i s a t ive S
G ()peration.d I iror (l;xpl.on)
Exlubit i. Same Sonice C8/17) 11 (llhes (lixplain)
f 50-309 UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO.
UNIT N AM E Maine Yankee DATE 790312 REPORT MONTil February 1979 COMPLETED llY R R Nren TELEP110NE (617) 366-9011 Page 2 of 2 X2281
_f3 7,
.$ E
}
E Licensee E-r t
Cause & Corrective o
No.
Date g
3g jg5 Event g7 p.
Action to H
c5 I,
~@c Repor #
va O EU Prevent itecurrence e
f u
o L.R.
2-24-79 S
96.00 B
1 NA IIF (ITEXCH-D Eddy Current Testing of all condenser to 75%
(continuing )
(plus) tubes.
L.R.
2-28-79 S
2.00 B
1 NA 1111 PUMPXX-B Repair seal water return line leak on to 55%
(continuing )
(plus) feedwater pump P-2A and adjust oil flinger-ring on P-2B.
I 2
3 4
F: l'o r t ed Itcason:
Method:
Exhibit C. Instructions S. Scheduled A.l?quipnient Failure (Explain) 1 Manual for Picparation of Data ll. Maintenance of Test
? Manual Serain.
Entry Sheets for Licensee C.Ref ueling 3-Antomatic Scrain.
Event IteporI (Ll!!t) 17 le (NUlti'.G-D.Regulatoiy itestriction 4 Other(Explain)
OlV :
II.Opciator liaining & License lixamination I:. Aitniini tiative 5
G Operational I inor (lixplain)
Exlubit 1 Saine Source 08/17) 11 Othes (lixplain)
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