ML20115C298

Monthly Operating Repts for Sept 1992 for Sequoyah Nuclear Plant,Units 1 & 2

ML20115C298
Person / Time
Site:	Sequoyah
Issue date:	09/30/1992
From:	Hollomon T, Joshua Wilson TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9210190275
Download: ML20115C298 (10)

Text

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A lenry w m vuvy Afou h.u 0%:e in, mn mm, Da >, Teu+r.sw 3737s J L. WJson vo, nenw seu,e to,ew nye October 15, 1992 U.S. Nuclear Reguintory Commission ATIN:

Document Control Desk Washington, D.C. 20555 Gentlement In the Matter of

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Docket Nos. 50-327 Tennessee Valle" Authority

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50-328 SEQUOYAll NUCLEAR PLANT (SQN) - SEPTEMBER 1992 MONIHLY OPERATING REPORT Enclosed is the September 1992 Monthly Operating Report as required by SQN Teciuiical Specification 6.9.1.10.

If you have any questions concerning this matter, please call H. A. Cooper at (615) 843-8924.

Sincerely.

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L. Wilson Euclosure ec:

See pt*,e 2 9210190275 920930

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U.S. Nuclear Regulatory Connission i

Page 2 i

October 15, 1992 4

cc (Enclosure):

INPO Records Centor Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 Mr. D. E. LaBarge, Project flanager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 Mr. Ted Marston, Director Electric Power Research Institute P.O. Box 10412 Palo Alto, California 94304 NRC Resident Inspector

- Sequoyah Nuclear Plant 2600 Igou Ferry Road Saddy-Daisy Tennessee 37379 Regicaal Administration l

U.S. Nuclear Regulatory Commisrion Office of-Inspection and Enforcement Region 11 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. B.-A.

Wilson, Project Chief U.S. Nucicar Regulatory Commission Region II 101 Marietta Street, NW, Suits 2900 l.

Atlanta, Georgia 30323 L

Mr. F. Yost, Director Research Services l-Utility Data Institute 1700 K Street, NW, Suite 400 Washington,- D.C. 20005 i;

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TENNESSEE VALI2Y AUT110RITY NUCLEAR POWER GROUP SEQUOYAII NUCIEAR FIANT MONTIILY OPERATING REPORT TO TIIE NUClfAR REGULATORY COPMISSION SITINfBEIL1992 UNIT 1 DOCEET NUMBER 50-327 1.ICENSE NUMBER DPR-77 l

l UNIT 2 l

DOCKET NUMBER 50-328 1.ICENSE NUMBER DPR-7?

- - -,-.---.- _ - ~~.

i OPERATIONAL

SUMMARY

SEPTEMBER 1992 i

LWlL1 t

Unit 1 generated 827,000 megawatthours (MWh) (grosa) electrical power during September with a capacity factor of 96.5 percent.

Unit 1 operated at near 100 percent reactor power throughout the month of September.

UNIL2 Unit 2 generated 715,760 MWh (gross) electrical power during September with a

~ i capacity factor of 83.5 percent.

Unit 2 was operating at approximately PO percent reactor power at the beginning of September and enched 100 percent reactor power level on Septernber 1 at 0600 Eastern daylight time (EDT).

On September 4, a fire on the B phase main transformer neutral bushing resulted in a rapid unit shutdown to deenergize the transformer. The main generator was removed from service at 0241 EDT.

Reactor-power was subsequently taken to approximately 1 percent.

Following the investigation of the incident, the main transformer was repaired, tested, and returned to service.

Unit 2 entered Mode 1 at 0541 EDT on September 7 and was tied online at 1225 EDT. Unit 2 reached 100 percent reactor power on September 8 at 2300 EDT.

- r Unit 2 operated at near 100 percent reactor power level through the end of September.

F.0WER-OIERATED_RELI ELVALV ES_(EDRVs LAND _SAEEIX_ VALVES _

SUMMARY

There were no challenges to PORVs or safety valves in September, i

l.

E

~

o AVEltAGE DAILY UNIT POWER LEVEL 9

DOCKET NO.

_10-327 UNIT No. __Om D*?Et

_1Q-08-92 COMI'LETED BY: Ll_ilollDmon TELEPtiONE: 16151_8h3-7118 M JNTil: SCfIEER_199L

/.VERAGE DaiLX POWER LEVEL AVERAGE DAl1Y POWER LEVEL

.a l fWe-Ned DAY (hWede.O L101 17 lila la2L 18 1l20 3

11QQ_

19 1.119 t

4 11Q5 20

_ JL19 5

"d21_ _.

21 1119 6

lQ96

• 2 1119 _

7 1050 23 1119 i

_ _ _lDhl._______ _.

24 lih 9

1112 25 L121 10 u1L 26 1121 E

11 1111 _.

27 1123 12 ll20 28 1121 13 1120 29

___ll;LL 11

[121 30 lias 15 l'.I 7 31 N/A 16

__1120 El

1. 5 i

1 %T * '

,)

g Q

AVERACE DAII.Y UNIT POWER IEVEL DOCKET NO.

_._50-318 UNIT No..__Tyo DATE:

.10-08-92 COMPLETED BY: L _ L._llo l l n m on TELEP110NE:

(615) 843-7528-MONTil: SEU521 DELL 119L AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL NY

_(FMe-Ne.t)

DAY (MWe-Nat)

-l 1

J38 17 1111 2

1L15_._

18 111B_

3 10A.4 19 1117 4

79 20 111]

5

-3D 21 1117 6

-33 22 1118 7

90 23 11; E 8

778 24 H2O 9

_1110 25 1120 10 1112.

26 1110 11 1111 27 1121 12 1114 28 ill:

13 11*5 29 1122 14 1115 30 1123 15 1116 31 N/A_

16 1115

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~

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I'q q

^

OPER\\ TING DATA REPORT

-DOCKET NO.

_50-327

..DATE _19/08/92 v-COMPLETED BY T. J. HollDepa._'

-TELEPHOP!I (615) 843-7528 l

DE.EFAlltiG 11AIUS i

l Notes l-1.

Unit Name: _$ggV2J1!LuntL0ne l

l 2.

Reporting Period: leattmt. r 1992 l

l 3.

Licensed thermal Power (HWt): J411.0 l

.. l

4. -Nameplate Rating-(Gros's HWe): _1220.6 l

~l.

5.

Design Electrical Rating (Net Mie):._Llj8.0 l

l --

6.

Maximum Dependeble Cipacity (Gross HWe): J.152.0 l

-l 7.

Maximum Dependable Capacity (Net HWe): ll2LD 1

1 8.

If C ".iges Occur in Capacity Ratings (Item Humbers 3 Through 7) Since Last Repert, Give Reascos:

9.-

Power Level To Which Restricted, If Any (Net HWe):

N/A_

10. Reasons for Restrictions, If Any:

N/A This Month Yr-to-Date Cumulative

11. Hours in Reporting Period

,120 6J75 98.640

'E

12. Number cf Hours Reactor Was Critical 720.0 5.737.b._

52.691-

13. Reactor Reserve Shutdown Hours 0

0 0

14. Hours Generator On-Line

/20.0 5.693.5 51.564.6

15. Unit Reserve Shutdown Hours 0.0 0

0

16. Gross Thermal Eneryy Generateo (HWH)

_2d44LO73.9

__lBJBL2ZL.L 168.195.756 _

- 17. Gross Electrical Energy Generated (HWH) 82L_QQQ.._,

_6.J5L.lf4

_jl 02id64

10. Het Electrical Energy Generatal (HWti) 798.756 -

_L.J29.266_ _

54.685.0D.0 19, Unit Service Factor 10D10 86 6_

52:.3._-

20. Unit Availability factor 109 0 86.6 52.3

21. Unit Capacity factor-(Using HDC Net) 98.9 83.0

- 49.'4

22. Unit Cepacity -Factor (Using DER.4et)

-95 6 Bl.i.L 48_J _

23. Un!t forced Outage. Rate 0.0 13.4

.39.3

24. Shetdowns Scheduled Over Next G Honths (Type, Date, and Duration of Each):

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

4 OPERATING DATA REPORT DOCKET NO. _50-328 DATE 10/f0/32 COMPLETED BY L_lt_112]lompt TELEPHONE 1615) 843_152B__

OfLRAlllPLSIAM l Notes l

1.

Unit Name: _ itquayAtLUrtil.lE2 l

l 2.

keporting Period: _P91Mk.tr_1332 l

l 3.

Licensed Thermal Power (tnt):.3.4thQ l

l 4.

Nameplate Rating (Gross tNe): _12Z04 l

l S.

Design Electrical Rating (Net MWe): _ll46.tQ_-

_ _, j l

6.

Maximem Dependable Capacity (Gross FNe): 1.lhL 2. ___._

l l

7.

Maximum Dependable Capacity (Het MWe): _ll2LQ L...

[

8.

If thanges Occur in Capacity Ratings (Item Humbers 3 Through 7) Sinse Last Report, Give Reasons:

9 Power Level To Which Restricted. If Any (Het tNe):

___N/A

10. Reasons for Restrictions, If Any:

N/.A This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 1RQ

.L515 90.600

12. Number of Hours Reactcr Was Critical 720A__

d. 992.tZ._

54,.006

13. Reactor Reserve Shutdown Hours 1

_,Q _

tl ___

14. Hours G<3erator Or-line h103 4 BZ h4, 5ZJ10d_

t 15, Unit Ress:cve Shutdown Hours 0. Q__

0 0

g

16. Gross Thermal Energy Generated (PMI)

_L11L167.5

__15.161.651.4

._166.08L9fL._

17. Gioss Electrical Energy Generated (MWH) _.1151160

___hd16tS33 56.294.824

. s^

10. Nat Electrical Energy Generated (tMI) 6 E 211 4.927,13D__

_5LBZLf34

19. Unit Service Factor 68 6.

73.4 58.4

20. Unit Availability Factor

__B46_ _

73.4 SLA_

21. Unit Capacity factor (Using HDC Net)

Qil_

___Q51 53.0

22. Unit Capacity factor (Using DER Net)

Ol d.__

65.3 51.8

23. Unit forced Outage Rate

___lL4_

3 9_

34.0 1

24. Shutdowns Scheduled Over Hext 6 Months (Type, Date, and Duration of Each):

25, if Shut Down At End Of Report Per..d, Estimated Date of Startup:

DOCMET N0f-32i UNIT SHUTDGe45 4:D FOWER 2 EDUCTIONS.

~~ UNIT PM:

' Cne

'~

- DATE:

10/08/92-REPORT MONTH: SEPTEM3ER 1992 COMPLETED BY:T. J. Mo11owen '

TELEPHONE:I615i SG '523-Method of Licensee l

Cause and Corrective Duration-l Shutting Down Event

Syt*==

Cerconenti Action.to,

~*

D-l 2

3 d

5 No.

Date Type (Hours) 1ReasoR Reactor Report No.

Code Code Prevent Recurrence No activities ' to report this' period.

i 2

3

'F: Frrced Reason:

Hethad:

Exhibit G-Instructions ~

5: Scheduled A-Equipment Failure (Explain)-

1-Manual.

N r Preparation of Data'-

. B-Maintenance or Test:

2-Manual-Scram

. Entry sheets 'or Licensee C-Refueling

'3-Automatic Scram Event Report (LER) File D-Regulatory Restruction 4-Continuation of Existing Outagef (HUREG-1022)-

E-Operator Training and 1.icense Examination 5-Reduction F-Admini strative 9-Other 5

G-Operational Error (Explain).

Exhibit-I-Same' Source-H-Other (Explain)

_..m._..

..E'.

o:

DOCXET NO:

50-328 UNIT Sr1UTDOWNS AND FCWER REDUCTIONS LK4IT NAME:

Two DATE:

10/08/94--

REPORT MONTH. SEPTEMBER 1992 CDM.0LETED BY:T. J. Follecen TELEPHONE:(6151 843-75a3-Method of Licensee Cause at.d Corrective Duration Shutting Down Event l System Comoonent Action to I

2 b

No.

Date Type (Hours)

Reason Reacto: 3 Report No.

Code Code Prevent Rec:trrence 7

920904 F

81.7 T

5 328/92012 243 XFMR On September 4. a fire on the l

B phase main transformer neatral bushing resulted in a rapid unit.

shutdown to deenergize the transformer. The main generator was renoved f rom service at 0241 EDT. Reactor power was subse-quently taken to approximately 1 percent. The cause of the fire.

was determined to be inadequate bolt tension at the bolted flange at the top of the primary side neutral bushing. This resulted from improper installation of the believille washer; during initial const ructi on.

The ma:n tr?ns-former was repaired, testec. 44d returned to service. Unit 2 entered Mode 1 at 0541 EDT on September 7 and was tied online at 1225 EDT. Unit 2 reached 100 per-cent reactor power on September 8 at 2300 EDT.

I: forced Reason:

Method:

Exhibit G-Instructions 2

3 F

5: Scheduled A-Equipment failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram Entry sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Resiruction 4-Continuation of Existing Oot=ge (NUREG-1022)

E-Operator Training and License Examination 5-Reduction F-Administrative 9-Other S

G-Operational Error (E plain)

Exhibit I-Same Source l

H-Other (Explain) i l

.