ML20206B003
| ML20206B003 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 10/31/1988 |
| From: | Murphy W, Wallin G VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| VYV-88-227, NUDOCS 8811150312 | |
| Download: ML20206B003 (6) | |
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VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 88-10 FOR THE MONTH OF OCTOBER,-1988 l
DP 0411 Rev. 2 Page 1.of 1
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8811150312 881031 PDR ADOCK 05000271 R
OPERATING DATA REPORT DOCKET NO.
50-271 DATE 881110 COMPLETED BY G.A. Wallin__
TELEPHONE (802)257-7711 OPERATING STATUS 1.
Unit Names Vermont Yankee NOTES:
2.
Reporting Period October 3.
Licensed Thermal Power (MWt):
1593 4.
Nameplate Rating (Gross MWe):
540 5.
Design Electrical Rating (Net MWe): 514(oc) 504(cc) 6.
Maximum Dependable Capacity (Gross MWe): 535 7.
Maximum Dependable Capacity (Net MWe):
504 8.
If changes occur in capacity ratings (Items Number 3 through 7)since last report, give reasons:
N/A 9.
Power level to which restricted, if any(Net MWe):
N/A 10.
Reasons for restrictions, if any:
N/A This Month Yr-to-Date Cumulative 11.
Hours In Reporting Period 745.00 7320.00 12.
Number Of Hours Reactor was Critical 745.00 6940.32 111785.68 13.
Reactor Reserve Shutdown Hours 0.00 0.00 0.00 14.
Hours Generator On-Line 745.00 6870.15 109139.42 15.
Unit Reservo Shutdown Hours 0.00 0.00 0.00 16.
Gross Thermal Energy Generated (MWH)1157299.50 10692072.50 130432784.00 17.
Gross Electrical Energy Generated
_387522.00 3556383.00 53396227.00 18.
Net Electrical Energy Generated (MWH)367973.00 3379313.00 50674400.00 19.
Unit Service Factor 100.00 93.85 77.27 20.
Unit Availability ractor 100.00 93.85 77.27 21.
Unit Capacity Factor (Using MDC Net) 98.00 91.60 71.19_
22.
Unit Capacity ractor(Using DER Net) 96.09 89.82 69.80 23.
Unit Forced Outage Rate 0.00 3.72 6.16 24.
Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each): 1989 Refueling Outage scheduled to begin on February 11, 1989 and conclude on April 8, 1989.
25.
Il shut down at end of report period, estimated date of startup: N/A 26.
Units In Test Status (prior to commercial operation): N/A rotecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION VYDPr 0411.01 DP 0411 Rev. 2 Pag @ 1 of 1 RT No. 13.rO1.19F k
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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT. Vermont Yankee DATE 881110 t
COMPLETED BY G.A.
Wallin TELEPHONE (802)257-7711 I
MONT!!
October DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL i
(MWe-Net)
(MWe-Net) l 1.
487 17.
518 2.
486 18.
517 3.
476 19.
517 4.
476 20.
517 L
5.
496 21.
517 6.
496 22.
518 l
7.
497 23.
510 l
8.
496 24.
518 9.
465 25.
518 10, 493 26.
518 11.
492 27.
518 I
12.
494 28.
517 13, 494 29.
343 t
14.
495 30.
427 (25 hr. dey) f 15.
517 31.
499 f
16.
500 INSTRUCTIONS:
On this format, list the average daily unit power level in MWe-Net
}
for each day in the reporting month.
Compute to the nearest whole l
cagawatt.
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VYDPF 0411.02 j
DP 0411 Rev. 2 l
Page 1 of 1 RT No. 13.F01.18V I
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-l UNIT $ NUIDOWN S AND POWER REDUCTIONS DOCEET NO $0-271 SEFORT MONTN OCTOBLR UNIT NAME vermont Yankee DATE 881110 COMPLETED BY G.A.
Waitaa TELEFNORE tt02B257-77A1 1
2 Method of L& cense System Compement Cause and Correcttve No.
Date Type Duratica Possen Shutting Dewa Eweat Cede Code ACtica te (heurst Reacter 1
Report 9 4
S Prevent Recurrence
$4-19 441609 5
0.99 N
4 N/A RB CONROD Red pattera adjustseat.
Fever Reduction
~~
84-20 441029 s
0.06 s,s*
4 N/A 28 COBROD Single Red Scree testtag; Centre 1 Feuer Red and Turbine Sypass valve Seducties testing; weekly Turbine surveillance and a Red Patters Enchange.
88-20 881929 5
0.00 3
4 N/A CS IIIIKE "A"
and
- B*
recirculation NG sets Power removed from service for brush Reducties wear replacement.
1 F
Forced 2 Renees:
3 Nothodz 4 Eskibit G-Instructions 52 scheduled A-Equipseat Failure (Emplais) 1-Namuel for Freparation of Data 3-Neistenance er Test 2-Namuel Scres Entry Sheets for Licensee C-Refueling
- 3. Automatic Scram Event Report (LER) File D-Begulatory Bestricties 4-Other (Esplais)
(NWREG 0161)
E-Operator Training and License Esemination F-Administrative S Eskibit I - Same Source VYDFF 0411.03 G-Operatiosa! Error (Esplais)
DF 0411 sew. 2
- N-(Esplata) - Centrol Red Pattern Eachange Page 1 of 1 27 No. 13.F01.18W
DOCKET NO. 50-271 UNIT Verrent Yrnkno DATT; 883110 COMPLETED DY G.A. Wallin TELEPHONE (802)257-7711 REPORT MONTH October
SUMMARY
OF OPERATING EXPERIENCES Highlights Varmont Yankee operated at 97.5% of rated thermal power for the month.
Gross electrical generation was 387,522 MWHe or 96.3% design electrical capacity.
Op3 rating Summary tha following is a chronological description of plant operations including ether pertinent items of interest for tae mont.h At the b. ginning of the reporting period the plant was operating at 99.9%
of rated thermal power.
881009 At 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br />, began a power reduction to 77% to perform a control rod pattern adjustment.
(See Unit Shutdowns and Power Reductions) 881009 At 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br />, began a return to full power following the control rod pattern adjustment.
881015 At 0027 hours3.125e-4 days <br />0.0075 hours <br />4.464286e-5 weeks <br />1.02735e-5 months <br />, the cooling towerr. were secured and the plant returned to an open cycle mode of operation.
881029 At 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br />, initiated a power reduction to minimum recirculation flow to perform scheduled maintenance, surveillance testing, single rod scram testing and a rod pattern exchange.
881029 At 0730 hours0.00845 days <br />0.203 hours <br />0.00121 weeks <br />2.77765e-4 months <br />, initiated control rod exercising, turbine surveillance and bypass valve testing.
(See Unit Shutdowns and Power Reductions) 881029 At 0810 hours0.00938 days <br />0.225 hours <br />0.00134 weeks <br />3.08205e-4 months <br />, completed control rod exercising, turbine surveillance and bypass valve testing.
881029 At 0835 hours0.00966 days <br />0.232 hours <br />0.00138 weeks <br />3.177175e-4 months <br />, commenced Main Steam Isolation valve testing.
(See Unit Shutdowns and Power Reductions) 881029 At 0840 hours0.00972 days <br />0.233 hours <br />0.00139 weeks <br />3.1962e-4 months <br />, completed Main Steam Isolation valve resting.
881029 At 0845 hours0.00978 days <br />0.235 hours <br />0.0014 weeks <br />3.215225e-4 months <br />, secured the "A"
recirculation pump for MG set brush replacement.
(See Unit Shutdowns and Power 3. eductions)
Immediately following the. pump being secured, observed fifteen to eighteen percent powe oscl11ations which were dampened by increasing the operable loop pump speed.
881029 At 0947 hours0.011 days <br />0.263 hours <br />0.00157 weeks <br />3.603335e-4 months <br />, initiated single rod scram testing.
(See Unit Shutdowns and Power Reductions) 881029 At 1154 hours0.0134 days <br />0.321 hours <br />0.00191 weeks <br />4.39097e-4 months <br />, started the "A"
recirculation pump following MG set brush replacement..
881029 At 1209 hours0.014 days <br />0.336 hours <br />0.002 weeks <br />4.600245e-4 months <br />, sacured the "B" recirculation pump for MG set brush replacement.
(See Unit Shutdowns and Power Reductions) 881029 At 1445 hours0.0167 days <br />0.401 hours <br />0.00239 weeks <br />5.498225e-4 months <br />, started the "B"
recirculation pump following MG set brush replacement.
881029 At 1752 hours0.0203 days <br />0.487 hours <br />0.0029 weeks <br />6.66636e-4 months <br />, completed single rod scram testing and initiated a rod pattern exchange.
(See Unit Shutdowns and Power Reductions) 881029 At 1905 hours0.022 days <br />0.529 hours <br />0.00315 weeks <br />7.248525e-4 months <br />, completed the rod pattern exchange and a return to full power was initiated.
At the end of the reporting period the plant was operating at 96.2% of rated thermal power and ramping back to full power.
VYDPF 0411.04 DP 0411 Rev. 2
o VERMONT YANKEE NUCLEAR POWER CORPOR ATION P. O. BOX 157 GOVERNOR !!UNT ROAD VERNON, VERMONT 05354 November 10, 1988 VYV 88-227 f
i U.S.
Nuclear Hegulatory Commission ATTN: Document Control Desk washington, D.C.
20555 Dear Sirt 3
submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of October, 1988.
very truly yours, VERMONT YANKEE NUCLEAR POWER CORP.
/Yg f
h l
Warren P. Murphy l
Vice President an Manager of Operations l
cc:
1J USNRC l
l Pegion I i
475 Allendale Road i
King of Prussia, PA 19406 I
l DP 0411 Rev. 2 i
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