Text

Monthly Operating Rept for April 1992 for North Anna Power Station
	ML20096E075
Person / Time
Site:	North Anna
Issue date:	04/30/1992
From:	Kane G, Stewart W; VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	92-333, NUDOCS 9205190051
	Download: ML20096E075 (14)
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E, YIltOINIA F,LECTitIC ANI) POWEll COMI'ANY

. Ricianoun,Vistuts A 202(11 May 14, 1992 LU; S. Nuclear Regulatory Commission Serial No.92-333 Attention: Document Control Desk' NL&P/JMJ:Jmj Washington, D.C. 20555 Docket Nos.

50-338 50-339 License Nos. NPF-4 N PF Gentlemen:

. VIRGINIA ~ ELECTRIC - AND ' POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2

- MONTHLY - OPER ATING REPORT Enclosed is the Monthly Operating Report for North Anna Power Station Units 1 and 2 forthe month of Apri 1992.

-Very truly yours, h, Q(Y h;.k.

f)>

hG W. L. dtewart Senior Vice President - Nuclear Enclosures cc:

U.S. Nuclear Regulatory Commission 101'Marietta Street, NW Suite 2900 -

Atlanta, GA ' 30323 Mr. M. S.- Lesser -

NRC Senior Resident inspector North Anna Power Staton i

'.9205190051 920430 g

'PDR--ADOCK 05o00339 R: '

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-VIRGINIA POWER COMPANY NORT3 ANNA POWER ~ STATION-MONTHLY-OPERATING REPORT 4

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' MONTH:D April _

YEAR 1992___

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.r l-OPERATING DATA REPOR1 i

DOCKET NO.:

50 338 DATE: May 4, 1992 CONTACT: G. E. Kane PHONE: (703) 894 2101 OPERATING STATUS 1.

Uni t Name s................................N or th Anna 1 2.

Report i ng Per i odt......................... Apr i l 1992 3.

Licensed Thermal Power (MWt).............

2,748 4.

Nameplats Rating (Crosa We).............

047 5.

Design Elec+rical Rating (Net MWe):.......

907 6.

Maximum Dependable Capacity (Gross We):..

894 7.

Maxisun Dependable Capacity (Ntt MWe):....

848

.6. 'If changes occur in Capacity Ratings (Items No. 3 thru 7) since test report, give reasons:_N/A 9.

Power levet to tahtch rr.*tricted, if any (Net WQ: _N/A

10. Reasons for restrictic:,, f any:

N/A This Month T t-D Cunulative e

11.'IMurs In Reporting Period................................

719.0 2,903.0 121,475.0

12. Number of Wours React or was Cr i t i ca l.....................

719.0 1,361.3 88,049.8

13. Reactor Reserve Shutdown Hours...........................

0.0 36.3 6,758.0

10. Yours Generator 0n Line..................................

719.0 1,344.2 85,115.7

15. Uni t R es erve shut down Hours..............................

0.0 0.0 0.0

~ 16. Cross Thermel Energy Gene ra t ed (MWH ).....,.............. 1,961,347.8 3,529,434.7 226,482,207.1

~

17. Eross Electrical Energy Cenerated (NWH)..................

650,184.0 1,167,258.0 74,425,105.0

18. Net Electrical Energy Generated (MWH)....................

617,921.0 1,107,470.0 70,462,087.0

19. Unit service Factor.....................................

100.0%

46.3%

70.1%

20. Unit Availability Factor......................

100.0%

46.3%

70.11

-21. Unit capacity Factor (using MDC Net).....................

101.3%

42.6%

64.8%

' 22. Uni t capac i ty F ac t or (us i ng DER N et ).....................

94.8%

42.1%

64.0%

23. F orced Out a ge R a t e.......................................

0.0%

12.1%

20. shutdowns scheduled _0ver Next 6 Months (Type, Date, and Duration of Each)_None 5

25. If shutdown at end of Report Period, estimated time of Start @:

N/A

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

g Forecast Achieved

' INITIAL CRITICALITY INIU 4L ELEC*RICITY

' COMMERCIAL OPERATION I

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AVERAGE DAILY UNIT POWER LEVEL Docket No.:

50-338 Units NA-1 Dates May 4.

1992 Contacts

_ G.

E. Yang Phonet (703) 894-2101 MONTH:

April 1992 DAY AVERAGE DAILY POWER.

DAY AVERAGE DAILY LEVEL LEVEL (MWe-Net)

LEVEL (MWe-Net) 1 863 17 868 2

864 18 868 3

864 19 864 4

864 20 865 5

865 21 864 6

864-22 864 7-864 23 865

-8 864 24 865 9

864 25 866 10 832 26-867 11 814 27 867 12 816 28 868 13 825 29 867 14 864 30 868 15 866 le 867 Instructions:

On this. format, list the average daily unit power level in MWe-Net for cach day in the reporting month.

Compute to the nearest

-whole megatratt.

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--___---------___---_O

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET FO.:

50-338-UNIT NAME:

NA-1.

c DATE: May 4,.1992 REPORT MONTH: April 1992.

CONTACT:

G.

E. Kane PHONE: {703)'894-2101

-1 2.

3-4 5

No.

Date Type' Duration Reason Method of Licensee -System Component Caase & Corrective (hrs)

' Shutting Event

Code, Code Action to-Down Reactor Report #

Prevent Recurrence

'No entry this month.

1: Type 2: Reason

.(explain) 1= Manual Exhibit F - Instructions 3: Method 4:

F=Ferced A== Equipment Failure S= Scheduled B= Maintenance or Test-2= Manual Scram for preparation'of Data C= Refueling-3= Automatic Scram Entry Sheets for Licensee D= Regulatory Restriction 4cContinuations Event Report (LER) File E= Operator Training & License Examination 5= Load Reduction (NUREG-0161)

F= Administrative 94ther G= Operational Error 5:

H=Other.(explain)

Exhibit H - Same Source

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UNIT BRUTDOWN-AND POWER REDUCTIONS-Explanation Sheet d

Docket No,'

50-338=

Report Month Acril' Unit Names NA-1

' lear s: 1992

'Date.May 4, 1992

Contact:

'G.

E.

Kano

~

- *No entry this month.:

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1 NORTH ANNA POWER STATION UNIT NO.

1 MONTH:

April

SUMMARY

_'F OPERATING EXPERIENCE Page 1 of 1 Listed below in chronological sequence is a

summary of operating experiences for this month which required load reductions or re.sulted in significant non-load related incidents.

Date Time Drta April 01, 1992 0000 Began month with unit at 95% power, 907MWe.

April 10, 1992 0835 Commenced unit ramp-down to 880MWe for TVFT.

0955 Commenced TVFT.

1030 TVFT completed satist'actorily.

Maintaining unit at approximately 90%

power for Ma iri Condenser waterbox inspections.

April 13, 1992 1826 Commenced unit ramp-up to 93% power for calorimetric.

1920 Calorimetric completed stafisfactorily.

Commenced unit ramp-up to full power.

2054 Unit stable at 95% power, 912MWe.

April 30, 1992 2400 Ended mont14 with unit at 95% power, 909MWo.

,=

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y OPERATING DAtt. REPORT DOCKET NO.

50 339 DATE: May 4, 1992 CONTACT: G. E. Kane PHONE: (703) 894 7101 OPERATING STATUS 1.

Uni t N am, s................................ N o r th Anna 2 2.

R epor t i ng Peri od :......................... Apr i l 1992 3.-Licensed Thermal Power (MWt).............

2893 4 Nameplate Rating g M v MWe)............

947 5.

Design Electrical Rating (Net r.We):.......

907 6.

Maxinun Dependable capacity (Gross MWe',:..

957 7.. Maxinun Dependsble Capacity (Net MWe)....

909 8.

If changes occur in Capacity Ratings (Items No. 3 tnru 7) since last report, give reasors:

N/A 9.

Power level to which restricted, if any (Net MWe): _ N/A

'.0. Reasons for restrictions, if any:

N/A This Month Y t-D Cunulative

11. Hours in Reporting Period................................

719.0 2,903.0 99,743.0

12. N eber of Houri Reactor was Critical.....................

158.8 1,505.9 81,241.8

13. Reactor Reserve Shutdown Hours...........................

68.4 108.8 6,166.2

14. Hours Generator 0n-Line........................

129.5 1,460.7 80,235.1

15. Unit Reserve Shutdown Hours..............................

0.0 0.0 0.0

16. Gr?ss Thermal m.wrgy Generated (MWH).....................

253,114.4 3,685,055.5 215,502,188.6 as Electrical Energy Generated (MWH)..................

F1M.e 1,202,358.0 70,582.4.84.0 17.

18. N e t E l ec t r i ed 5%rgy Genera t ed (MWW)............

75,894.0 1,137,622.0 67,637,355.0

19. Unit Service Factor......................................

18.0%

50.3%

80.4%

20. Unit Availpbility Factor.................................

18.0%

50.3%

80.4%

21. Uni t Capaci ty Factor (us ing MDC Net ).....................

11.6%

43.1%

75.3%

22. Unit Capacity Factor (usIng DER Net).....................

11.6%

43.24 74.8%

23. Forced Outage Rate...................

0.0%

1.8%

5.9%

2$. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duratf or, of Each):_N/A

25. hf Shutdown at end of Repoit Perlod, es;imated time of Startup:

_ _ _h/ A 26.~ Units in Tsat Status (Prior to Comercial Operation):

Forecast Achies INITIAL CRITICALITY INITIAL ELECTRICITY CCMMERCIAL OPERATION

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AVERAGE DAILY' UNIT-POWER LEVEL

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Docket No.t 50-339 Unit NA-2 Dates May 4.

1992

Contact:

G.

E.

Kane Phones (703) 894-2101 q.'

' MONTHS, ADril"1992-T:

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DAY-

-AVERAGE. DAILY' POWER DAY AVERAGE DAILY-LEVEL f

' LEVEL'(MWe-Net)

LEVEL -- (MWe-Nat) :

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'O 17 0

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~2-0 18 0

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'3-0-

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0 20 0

15.-

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6 0~

22 0

r7-0 23 0

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24 0

1

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-25 76 71 0 '

O 26 203--

' 118

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0

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27 425

~

28 690

'D. -

13 O'

29 866 214-0

=30 902

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-Instructions 8-

.On-this. format, listLthe-average daily unit power level in MWe-

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- Nat: for each day in the reporting ~ montF.

Compur.e to the nearest

whole.regawatt.

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UNIT SHUTDOWNS AND POWER REDUCTIONS

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DOCKET NO.:

50-339 UNIT NAME:

NA-2 DATE: May'4, 1992 REPORT MONTH: April 1992 CONTACT:

E. Kane s

PHONE: (703) 894-2101 1

2 3

4 5

do.

Date Type Duration' Reason Method of Licensee System Component Cause & Corrective (itrs)

Shutting Event Code Code Action to Down Reactor Report /

Prevent Recurrence 92-03 920226 S

589.5 C

4 N/A N/A N/A Refueling in progress.

S/G maintenance and inspections ongoing.

1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) 1= Manual Exhibit F - Instructions S= Scheduled B=Maintenanc

^'- Test 2= Manual Scram for preparation of Data C= Refueling 3= Automatic Scram Entry Sheets for Licensee D= Regulatory Restriction 4= Continuations Event Report (LER) File E= Operator Training,& License Examination 5= Load Reduction (NUREG-0161)

F= Administrative 9=Other G= Operational Error 5:

H=Other (explain)

Exhibit H - Same Source

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-UNITISHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.t

-S0-339 _

o

. Report Month April-Unit Names NA-2 l'

-Year

__J 122_.

Date May 4, 1992 Contacts G.

E.'Kane

~ f92-03 February 26,-1992' Main ~; Generator taken off-line at 1413 hours0.0164 days 0.393 hours 0.00234 weeks 5.376465e-4 months in

preparation for: refueling outage. Unit entered Mode 3-at 1501"he s.

y February'27, 1992:

[~

Unit entered' Mode 4'at 0449 hours0.0052 days 0.125 hours 7.423942e-4 weeks 1.708445e-4 months .

Unit entered Mode-5

'at-1930-hours.

~. March 07, J992-

-Unit entered Mode 6 at'0522-~nours.

March-14,.1992 Reactor defueled at 0640 hours0.00741 days 0.178 hours 0.00106 weeks 2.4352e-4 months .

-March /23,;;-1992'

. Reactor fuel-: on-load commenced at 0633 ' hours.

1 Marchl 2 6,-- 1992 -

Reactor fuelLon-load: completed:-at 0413 hours0.00478 days 0.115 hours 6.828704e-4 weeks 1.571465e-4 months .

April!01,l1992-

-Unit, entered - Mod.e 5 at 0920 - hours.

Pressurizer = power-

-operated relief valve, PCV-2455C, lifted and reseated in 1 response to Reactor Coolant System.NDT Overpressurization

. signal at 1119 hours0.013 days 0.311 hours 0.00185 weeks 4.257795e-4 months . -The RCJ was in'a solid' condition with no PCPs runnincr.

-April 20,.1992-Unit: entered Mode 4:at 1253 hours0.0145 days 0.348 hours 0.00207 weeks 4.767665e-4 months .

April'21,~1992

-. Unit ~. entered.' Mode.3 at 0320 hours0.0037 days 0.0889 hours 5.291005e-4 weeks 1.2176e-4 months .. Unit entered Mode P.

at 2352 hours0.0272 days 0.653 hours 0.00389 weeks 8.94936e-4 months .

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UN1T SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:

50-339 April 22, 1992 Entared T.S.

Actiori Jtatement 3.1.3.2 at 1540 hours0.0178 days 0.428 hours 0.00255 weeks 5.8597e-4 months due-to IRPI K-8 failing low.

Determined rod K-8 is dropped at 1715

hours, and entered r'oropriate abnormal procedure.

Commenced reactor sht..swn at 2030 hours0.0235 days 0.564 hours 0.00336 weeks 7.72415e-4 months .

Unit entered Mode 3 at 203i hours.

April 23, 1992 Unit entered Mode 4 at 0408 hours0.00472 days 0.113 hours 6.746032e-4 weeks 1.55244e-4 months .

Unit entered Mode 5 at 0820 hours0.00949 days 0.228 hours 0.00136 weeks 3.1201e-4 months .

April 24, 1992 Unit entered Mode 4 at 0816 hours0.00944 days 0.227 hours 0.00135 weeks 3.10488e-4 months .

Unit entered Mode 3 at 1818 hours0.021 days 0.505 hours 0.00301 weeks 6.91749e-4 months .

April 25, 1992 Unit entered Mode 2 at 0551 hours0.00638 days 0.153 hours 9.11045e-4 weeks 2.096555e-4 months .

Unit entered Mode 1 at 1240 hours0.0144 days 0.344 hours 0.00205 weeks 4.7182e-4 months .

Main Generator placed on line at 1325 hours0.0153 days 0.368 hours 0.00219 weeks 5.041625e-4 months and experienced turbine trip due to antimotoring alarm at 1326 hours0.0153 days 0.368 hours 0.00219 weeks 5.04543e-4 months .

Main Generator placed on-line at 1431 hours0.0166 days 0.398 hours 0.00237 weeks 5.444955e-4 months .

Unit stable at 30% power for Chemistry hold at 1753 hours0.0203 days 0.487 hours 0.0029 weeks 6.670165e-4 months .

April 27, 1992 Cleared Chemistry hold and commenced unit ramp-up at 0530 hours0.00613 days 0.147 hours 8.763227e-4 weeks 2.01665e-4 months .

1 April 30, 1992 Unit stabla at 99% pcwer, 947MWe, with all turbine valves full open at 2200 hours0.0255 days 0.611 hours 0.00364 weeks 8.371e-4 months .

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NORTH ANNA POWER-STATIOd-s

- UFiT-NO. -

-2

.l MOMTH:

ADril.

S'UMMARY OF OPERATING EXPERIENCE Page 1 of_2 Listed below in chronological sequence.is a

summary of operating experiences for-this month which-required load reductions or resu.'ted:in significant non-lcad related incidents.

Date Time Data April 01, 1992 0000 Began month with unit in Mode 6.

0970 Unit ent'r'd Mode 5.-

-April 14, 1992 1119 Pressurizer - power operated relief valve,-

PCV-2455C, lifted and reseated in response _to Reactor Coolant

_ System

-NDT Overpressurization signal.

The RCS was in a solid condition with no RCPs running.

-April'20, 1992 1253 Unit entered Mode 4.

April 21, 1992 0320 Unit entered Mode 3.

2352 Unit entered Mode 2.

April:22, 1992 1540 Entered T.S.

Action Statement 3.1.3.2 due to IRPI K-8 failing low.

1715 Investigation determined rod K-8 is dropped.

_ Entered-appropriate abnormal operating procedure.-

2030 Commenced reactor shutdown.-

2031 Unit entered-Mode 3 in preparation for repairs to rod control for K-8.

AprilD23, 1992 0408

' Unit-entered Mode 4.=

r-0820 Unit entered Mode 5.-

L

-April 24, 1992 0816-Unit entered Mode 4 following repair of rod control for K-8.

1818

' Unit entered Mode 3.

April 25, 1992 0551 Unit enterad Mode 2.

1045 Placed Main Turbine on-line -and L

experienced turbine trip due to-low L

oil pressure when 2-TM-P-1 was secured.

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NORTH ANNA POWER STATION UNIT NO.:

2 MONTH:.

_ April

SUMMARY

OF OPERATING EXPERIENCE Page 2 of 2 April 25, 1992 1133 Placed Main Turbine on-line and (continued) experienced turbine trip due to low oil pressure when 2-TM-P-1 was secured.

1240 Unit entered Mode 1.

1325 Main generator placed on-line.

1326 Experienced turbine trip due to antimotoring alarm.

1431 Main generator placed on-line at a higher load rate.

1753 Unit stable at approximately 30%

power for Chemistry hold.

April 27, 1992 0530 Cleared Chemistry hold.

Commenced unit ramp-up at 4%/ hour.

April 29, 1992 0352 Unit stable at 98% power per delta T indication.

A

-1549

" e.lta T and Tavg adjustments in progress.

1751 Commenced unit ramp-up to full power after adjustments.

April 30, 1992 2200 Unit stable at 99% power, 947MWe, with all turbine valves full open.

2400 Ended month with unit at 99% power, 949MWe.

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ML20096E075

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