ML20211M969

Monthly Operating Rept for Sept 1997 for Callaway Plant,Unit 1

ML20211M969
Person / Time
Site:	Callaway
Issue date:	09/30/1997
From:	Affolter R, Holmes M UNION ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ULNRC-3660, NUDOCS 9710150210
Download: ML20211M969 (6)

Text

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• 43 October 7,1997 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop Pl 137 Washington, DC 20555 0001 ULNRC 3660 Gentlemen:

DOCKET NUMllER 50-483 CALLAWAY PLANT UNIT I FACILITY OPERATING LICENSE NPF-30 MONTillN OPERATING REPORT SEPTEMilER 1997 The enclosed Monthly Operating Report for September 1997 is submitted pursuant to Section 6.9.1.8 of the Callaway Unit 1 Technical Specifications, q

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ter Manager, Luihway Plant RDA/ Mall Enclosure 150"3 lllll1111llll(llll,Eli

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ULNRC-3660 October 7,1997 Page 2 cci Mr. Ellis W. MerschofT Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 8064 Senior Resident inspector

. Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman,MO 65077 Mr. Barry C Westreich (2 copies)

- Acting Licensing Project Manager, Callaway Plant Ollice of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop 13E16 Washington, DC 20555 2738 Manager, Electric Department Missouri Public Service Commission PO Box 360 JefTerson City, MO 65102 Mr. Thomas A. Baxter Shaw, Pittman, Potts, & Trowbridge 2300 N. Street N.W.

Washington,DC 20037

Enclosure UI.NRC-3660 October 7 1997 DOCKET NO.:

50-483 llNIT N AME:

Call.AWAY UNIT I DATE:

10'7/97 COMPLETED 11Y:

M. A. llolmes TELEPilONE:

573/676-8842 FAX:

573/676-4334 PART A - OPFR ATIONS SilMM ARY:

On 7/10/97, at 1600, power was reduced to 94.596 due to an axial offset anomaly. On 8/19'97, at 0900, power was reduced over 2 days from 94,5% to 70.5'6 due to the axial offset anomaly. The plant has operated at 70% to ensure adequate shutdown margin is maintained because of the axial offset anomaly.

The plant operated at approximately 70% for the month of September with the following excephon:

On 9/5/97, at 1600, power was reduced at 3% per hour 'Ibe plant reached 30% power at 0800 on 9/6/97 and power was held there until 0500 on 9/7/97, at which time power was restored at 396 per hour to 70%

power. The reason for the power reduction was to remove the lithium boron compound from the upper regions of the core by increasing its solubility at lower temperatures. This evolution was performed in order to find a solution to the axial offset anomaly.

PART 11 PORY AND SAFETY VAINE SilMMARY:

None,

' age 1of4

___.-____._..___._.___m i.

' Enclosure-ULNRC-3660

- October 7,1997 i

1 l_

PART C.

{'

AVERAGE DAILY UNIT POWER LEVEL i

DOCKET NO:

50-483 UNIT:

Callaway Unit 1 DATE:

10/7/97 i

COMPLETED BY:

M A,llotmes j

TELEPilONE:

573/676 8842 FAX:

573/676-4334 i

MONTil: SEPTEMBER 1997 4

3 4

i AVERAGE DAILY POWER AVERAGE DAILY POWER LEVEL LEVEL-l DAY (MWe-Neu DAY (MWe-Neu i

j 1

786 17 782 2

786 18 '

780 l

i 3

801 19 774 l

4 808 20 792 5

758 21 799 6

311 22 797 4

7 529 23 797 t

8 789 24 798

-9 784 25 796 i

I 10 791 26 792 j

11 797 27 793 l

12 793 28 794 13 791 29 792 14 785 30' 793 i

15 782 31 j

16 775

]

1 l

Page 2 of 4

. ~

Enclosure ULNRC-3660 October 7,1997 PART D OPERATING DATA REPORT DOCKET NO.:

50-483 UNIT NAME:

CALLAWAY UNIT I DATE:

10/7/97 COMPLETED BY:

M. A. Ilolmes TELEPilONE:

573/676-8842 FAX:

573/676-4334 OPERATING STATUS:

(SEPT)

(YTD)

(CUM) 1.

REPORTING PERIOD:

GROSS IlOURS IN REPORTING PERIOD:

720 6,551.0 112,020.5 2 CURRENTLY AUTilORIZED POWER LEVEL (MWt): 3565 MAX. DEPEND. CAPACITY (MWe Net): 1125 DESIGN ELECTRICAL RATING (MWe-Net): 117I POWER LEVEL TO WillCil RESTRICTED (IF ANY)(MWe-Net): 100 %

4.

REASONS FOR RESTRICTION (IF ANY):

Tills MONTil YR TO D ATE CUMULA'IIVE 5.

NUMBER OF llOURS REACTOR WAS CRITICAL 720 6,551.0 99,627.9 6.

REACTOR RESERVE SilUTDOWN llOURS 0

0 0

7.

IlOURS GENERATOR ON-LINE 720 6,551.0 98,056.4 8.

UNIT RESERVE SilUTDOWN llOURS 0

0 0

9.

GROSS TilERMAL ENERGY GENERATED 1,743,769 21,910,640 332,282,447 (MWil)

August Correction 2,268,517 20,166,871 330,538,678 10.

GROSS ELECTRICAL ENERGY GENERATED 587,074 7,479,291 113,338,207 (MWii) i1.

NET ELECTRICAL ENERGY GENERATED 550,701 7,149,321 107,863,070 (MWil) 12.

REACTOR SERVICE FACTOR 100.0 100.0 88.9 13.

REACTOR AVAILABILITY FACTOR 100.0 100.0 88.9 14.

UNIT SERVICE FACTOR 100.0 100.0 87.5 15.

UNIT AVAILABILITY FACTOR 100.0 100.0 87.5 16.

UNIT CAPACITY FACTOR (Using MDC) 68.0 97.0 85.6 17.

UNIT CAPACITY FACTOR (Using Design MWe) 65.3 93.2 82.2 18.

UNIT FORCED OUTAGE RATE 0.0 0.0 2.16

19. SilUTDOWNS SCilEDULED OVER NEXT 6 MONTilS (TYPE, DATE, AND DURATION OF EACll):

Refueling Date:

Duration:

20. IF SilUT DOWN AT END OF REPORTING PERIOD, ESTIMATE DATE OF STARTUP:

Page 3 of 4

Enclosure 1

ULNRC-3660 October 7,1997 PART E UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-483 UNIT NAME:

CALLAWAY UNIT I.

DATE:

10/7/97 COMPLETED BY:

M. A. Holmes -

TELEPIIONE-573/676-8842 FAX:

573/676-4334 REPORT MONTH: SEPTEMBER 1997 METHOD OF TYPE SHUTTING DOWN F: FORCED DURATION TIIE REACTOR OR CORRECTIVE E

DATE S: SCHEDULED (HOURS)

REASON REDUCING POWER ACTIONS / COMMENTS 3

970901 F

0 11 1

See Summary below.

SUMMARY

3. He plant operated at approximately 70% for the month of September with the following exception:

On 9/5/97, at 1600, power was reduced at 3% per hour. The plant reached 30% power at 0800 on 9/6/97 and power was held there until 0500 on 9/7/97, at which time power was restored at 3% per hour to 70% power. The reason for the power reduction was to remove the lithiuna boron compound from the upper regions of the core by increasing its solubility at lower temperatures. This evolution was performed in order to find a solution to the axial offset anomaly.

REASON METHOD A: EQUIPMENTFAILURE(EXPLAIN) 1: MANUAL IL MAINT.ORTEST 2: MANUAL SCRAM C: REFUELING 3: AUTOMATICSCRAM D: REGULATORY RESTRICTION 4: OTIIER (EXPLAIN)

E: OPERATOR TRAINING AND LICENSE EXAMINATION F: ADMINISTRATION G: OPERATIONAL ERROR (EXPLAIN)

H: OTHER(EXPLAIN)

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