BVY-93-122, Monthly Operating Rept for Oct 1993 for Vermont Yankee Nuclear Power Station

Monthly Operating Rept for Oct 1993 for Vermont Yankee Nuclear Power Station

ML20059J651
Person / Time
Site:	Vermont Yankee
Issue date:	10/31/1993
From:	Reid D, Wallin G VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-93-122, VY-RCE-93-038, VY-RCE-93-38, NUDOCS 9311120309
Download: ML20059J651 (6)

Text

_

., o.

VERMONT YANKEE NUCLEAR POWER CORPORATION

[f

. . P.O. Box 157, Governor Hunt Road (g{/ ;j/ Vernon, Ve rnont 05354-0157

. J .g y (802) 257-7711

, \ Y ,)

November 10,1993 VY-RCE-93-038 BVY 93-122 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 t.

ATTN: Document Control Desk.

Reference:

a) License No. DPR-28 (Docket No. 50 271)

Dear Sir:

Submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of October.1993.

Very truly yours, Vermont Yankee Nuclear Power Corp.

N

\ .h A Donald A. Reid Vice President, Operations  ;

cc: USNRC, Region l I USNRC Resident inspector, VYNPS DP 0411 Rev. 5 i Page 1 of 1

,2,,,e _ , ,,,es, PDR' ADOCK 05o0027, R

$,'t 91 PDR k

t VERMONT YANKEE NUCLEAR POWER STATION MONTIILY STATISTICAL REPORT 93-10 FOR TIIE MONTII OF OCTOBER 1993 t

f DP 0411 Rev. 5 Page 1 of 1 1

't

1. OPERATING DATA REPORT DOCKET NO.50-271

. DATE 931110

. -COMPLETED BY G.A.-WALLIN TELEPHONE (802)257-7711.

QPERATING STATUS

1. Unit Name: Vermont Yankee U .2. Reporting Period: October NOTES:

3 '. Licensed Thermal Power (MWt):1593

4. Nameplate Rating (Gross MWe): 542-

5. Design Electrical Rating (Net MWe): 514 (oc) 504 (cc)

6. Maximum Dependable Capacity (Gross MWe) : 531 -

7. Maximum Dependable Capacity (Net MWe): 501-

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 7296.00 183360.00'

'12. Number Of Hours Reactor was Critical 191.77 5713.19- 149909.54

13. Reactor. Reserve Shutdown Hours 'O.00 0.00 0 .~ 0 0

14. Hours Generator On-Line 145.30 5639.70 146894.34

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. .

Gross Thermal Energy Generated (MWH) 210074.50 8811072.50 218882138'.50:

- 17 . Gross. Electrical Energy Generated 68087.00 2924718.00 72909876.00 ,

E18.' Net Electrical Energy Generated (MWH)

• 65341,QQ 2786892.00 69261767.00' l

19. Unit Service Factor 19.50 77.30 79.372 '

20-. Unit Availability Factor 19.50 77.30 79.37- i

21. Unit Capacity Factor (Using MDC Net) 17.40 75.79 74.261 ?

22. Unit Capacity Factor (Using DER Net) 17.06 74.31 72.81- ,

23. Unit Forced Outage Rate 0.00 3.98 -5.15~ j

24. Shutdowns scheduled over next'6 months (Type, Date, and Duration of' l Each: N/A  !

' 2 5. If shut.down at end of report period, estimated date of.startup:N/A  !

26. Units In Test Status (prior to commercial operation) : N/A ~  !

Forecast Achieved "

INITIAL CRITICALITY j INITIAL ELECTRICITY COMMERCIAL OPERATION j LVYDPF 0411.01  :

DP-0411 Rev. 5 -l Page-1.of 1 -

1 RT No. 13.F01.19F ,

I 6 -

i 4

l

AVERAGE DAILY UNIT POWER LEVEL q DOCKET NO. 50-271' _j

~

. UNIT : Vermont Yankee

- ,DATE- 931110 _

COMPLETED BY 'G.A -WALLIN- 3 TELEPHONE (802)257-7711" MONTH October l 1

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE. DAILY POWER LEVEL -!

(MWe-Net) (MWe-Net). [

.i

1. 0 17. 0  :.

2. 0 18. ___

0 ,

3. 0 19. 0 ,

4. 0 20. O  !

5. 0 21. 0 -->

-i

6. 0 22. 0 f

7. 0 23. O  ;

8. 0 24. O  !

9. 0 25. 7 .

10. 0 26. 193

11. 0 27. 440 .;

12. 0 28, 515-

13. 0 29, 518 -l i

14. 0 30. 514  ;

i 15 .. 0 *31. 515

16. 0 *25 hour day INSTRUCTIONS On this format, list the average daily unit power level in MWE-Net l for each day in the reporting month. Compute to the nearest whole '

megawatt.  ;

VYDPF 0411.02 l DP 0411 Rev. 5 Page 1 of 1 .,

RT No. 13.F01.1BV I

.i J

?s,---

g.

. UNIT SHUTDOWNS AND: POWER REDUCTIONS , . . . ,

~

REPORT MONTH OCTOBER DOCKET NO 50-271' .

UNIT NAME Vermont Yankee- '

DATE 931110-COMPLETED BY-G.A. Wallin TELEPHONE _(8021257-7711 1 2 3 4 5

-No. Date Type Duration Reason Method of License System Component Cause-andLCorrective (hours) Shutting Event Code Code Action to~ Prevent-Down Report # Recurrence-Reactor 93-11 931001 S 597.88 C,B 1 N/A N\A N\A Shutdown for 1993

.(Cont) Refueling / Maintenance.

outage 1

93-12 931026 S 1.82 B N/A N/A N\A N\A Turbine overspeed testing 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G- Instructions .

S: Scheduled A-Equipment Failure (Explain) 1 - Manual for Preparation of Data B-Maintenance or Test 2 - Manual Scram Entry Sheets for License C-Refueling ,'

3 - Automatic Scram Event Report (LER) File.

D-Regulatory Restriction 4- Other (Explain) (NUREG 0161)

E-Operator Training and License Examination 5 Exhibit I - Same Source.

VYDPF 0411.03 F-Administrative DP 0411.Rev. 5 G-Operational Error (Explain)

Page 1 of 1 H-(Explain) l:

f I

i

.____________________._..___.m_______ _____.-..___-__.--_..._.- . . ~ . ,

. . . - . . . . . - . . . _ , . . = , . - . . _ _;;;

.. t*

DOCKET NO. 50-271

' DATE .931110  :

COMPLETED'BY G.A. WALLIN ,

,. - TELEPHONE (802)257-7711 l REPORT MONTH October .

SUMMARY

'OF OPERATING EXPERIENCES Li

'Hiqhlichts j

Vermont' Yankee operated at 17.7% of rated thermal power'for the month.

Gross electrical generation was 68.087 MWHe.or 16.9% design electrical-capacity.

Operatino Summary j The following is a chronological description of plant operations including. I other pertinent items of interest for the month:

't At the beginning of the reporting period the plant was operating at 00.0%-

of rated thermal power.

• i

-i

-931024 At 0114 hours0.00132 days <br />0.0317 hours <br />1.884921e-4 weeks <br />4.3377e-5 months <br />, the reactor was critical.

l 931025 At'2153 hours0.0249 days <br />0.598 hours <br />0.00356 weeks <br />8.192165e-4 months <br />, the turbine-generator was phased to the grid.

931026 At 0219 hours0.00253 days <br />0.0608 hours <br />3.621032e-4 weeks <br />8.33295e-5 months <br />, the turbine-generator was removed from the grid for testing. (See Unit Shutdowns and Power Reductions) 931026 At 0408 hours0.00472 days <br />0.113 hours <br />6.746032e-4 weeks <br />1.55244e-4 months <br />, the turbine-generator was. phased to the grid-following testing and a return'to full power,was initiated.

'[

t 1

'l f

3*

At the end of the reporting period the plant was operating at 99.8% of rated thermal power. '

VYDPF 0411.04 ~!

DP 0411 Rev. 5 l Page 1 of 1 1 RT No. 13.F01.18X ,

i l

p y -