ULNRC-03266, Monthly Operating Rept for Aug 1995 for Callaway Plant Unit 1

Monthly Operating Rept for Aug 1995 for Callaway Plant Unit 1

ML20092G087
Person / Time
Site:	Callaway
Issue date:	08/31/1995
From:	Affolter R, Holmes M UNION ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ULNRC-03266, ULNRC-3266, NUDOCS 9509190105
Download: ML20092G087 (7)

Text

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.\ Calisway Pbnt Post Office Box 620

' l2 fu! ton, Missouri 65251 I .

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3 U.S. Nuclear Regulatory Commission l Document Control Desk 2 Washington,DC 20555 ULNRC-03266

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Gentlemen:

DOCKET NUMBER 50-483 CALLAWAY PLANT UitT I FACILITY OPERATING LICENSE NPF-30 MONTHLY OPERATING REPORT AUGUST 1995 The enclosed Monthly Operating Report for August 1995 is submitted pursuant to Section 6.9.1.8 of the Callaway Unit 1 Technical Specifications.

R. D. Affolter Manager, Callaway Plant Enclosure cc: Distribution attached 9509190103 950831 " p' PDR ADOCK 05000483

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cc [listribution for ULNRC-03266 with. enclosures

- Mr. Hub Miller Regional Administrator U.S. Nuclear Regulatory Commission Region III 801 Warrenville Road Lisle, IL 60532-4351 Mr. L. R. Wharton (2 copies)

Licensing Project Manager Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 13-E-21 Washington, D.C. 20555 Mr. M. J. Farber Chief, Reactor Projects Section III A U.S. Nuclear Regulatory Commission Region III 801 Warrerwille Road Lisle, IL 60532-4351 Manager, Electric Department

. Missouri Public Service Commission

P. O. Box 360 L Jefferson City, MO 65102 4 Mr. Thomas A. Baxter Shaw, Pittman, Potts & Trowbridge

! 2300 N. Street N.W.

L Washington, D.C. 20037

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NRC Resident Inspector e

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f DOCKET NO.: 50-483 UNIT NAME: CAllAWAY UNIT I DATE: 9/12/95 COMPLETED BY: M. A. Holmes .

TELEPHONE: 314/676-8842 FAX: 314/676-8562 PART A - OPERATIONS

SUMMARY

The plant operated at approximately 98.5% for the month of August due to steam generator low pressure limitations following chemical cleaning with the following exceptions:

On 8/5/95 at 0600, power was reduced to 97.8% for the performance ofInstrument and Control (I&C) surveillr.nces.

On 8/8/95 at 1700, power was reduced to 97.7% for the performance ofI&C surveillances.

On 8/10/95 at 1800, power was reduced to 97.4 to repair a Loop 2 Overtemperature Delta Temperature (OTDT) channel.

On 8/13/95 at 0550, power was reduced to 97.0% for the performance ofI&C surveillances.

On 8/14/95 at 1400, power was reduced to 97.6% for the performance ofI&C surveillances.

On 8/16/95 at 0943, a turbine trip / reactor trip occurred as a result of a loss of condenser vacuum caused by tripping of the 'A' Circulating Water Pump from a failed field excitation rheostat and the automatic opening of the steam dumps in response to the resultant turbine i runback (LER 95-005).

On 8/21/95 at 0200, power was reduced to 87.8% to investigate and repair the 'A'

Circulating Water Pump Discharge Valve that would not fully open.

On 8/25/95 at 0600, power was reduced to 97.5% for the performance ofI&C surveillances.

PART B - PORV AND SAFETY VALVE

SUMMARY

None.

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PART C AVERAGE DAILY UNIT POWER LEVEL DOCKET NO: 50-483 UNIT: Callaway Unit 1 DATE: 9/12/95 COMPLETED BY: M. A. Holmes TELEPHONE: 314/676-8842 FAX: 314/676-8562 MONTII: AUGUST 1995 AVERAGE DAILY POWER AVERAGE DAILY POWER LEVEL LEVEL DAY (MWe-Net) DAY (MWe-Net) 1 1.132 17 827 2 1.133 18 1.107 3 1.129 19 1.105 4 1.131 20 1.127 5 1.128 21 1.119 I 6 1.130 22 1.126 7 1.130 23 1.127 8 1.120 24 1.131 9 1.111 25 1.123 10 1.119 26 1.123 11 1.122 27 1.123 12 1.107 28 1.122 13 1.106 29 1.123 14 1.115 30 1.121 15 1.118 31 1.134 16 %8 Page 2 of 4 ,

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'. PART D

^ OPERATING DATA REPORT

. DOCKET NO.: 50-483 UNIT NAME: CALLAWAY UNIT 1 DATE: 9/12/95 COMPLETED BY: M. A. Holmes TELEPHONE: 314/676-8842 FAX: 314/676-8562 OPERATING STATUS: i (AUG) (YTD) (CUM)

1. REPORTING PERIOD:

AUG 1995 GROSS HOURS IN REPORTING PERIOD: 744 5,831 93,756.5 l 2 CURRENTLY AUTilORIZED POWER LEVEL (MWt): 3565 MAX. DEPEND. CAPACITY (MWe-Net): 1125 DESIGN ELECTRICAL RATING (MWe-Net): 1171 i I

3. POWER LEVEL TO WHICH RESTRICTED (IF ANY) (MWe-Net): 100 % )

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4. . REASONS FOR RESTRICTION (IF ANY) I l

THIS MONTH YR TO DATE CUMULATIVE i l

5. NUMBER OF HOURS REACTOR WAS CRITICAL 729.1 4,708.6 82,415.3

6. REACTOR RESERVE SHUTDOWN HOURS 0 0 0

7. HOURS GENERATOR ON-LINE 726.1 4,649.6 80,931.4

8. UNIT RESERVE SHUTDOWN HOURS 0 0 0

9. GROSS THERMAL ENERGY GENERATED 2,529,270 15,940,195 273,496,958 (MWH)

10. GROSS ELECTRICAL ENERGY GENERATED 849,451 5,410,377 93,262,145 (MWH)

11. NET ELECTRICAL ENERGY GENERATED 808,135 5,146,498 88,717,040 (MWH)

12. REACTOR SERVICE FACTOR 98.0 80.8 87.9

13. REACTOR AVAILABILITY FACTOR 98.0 80.8 87.9

14. UNIT SERVICE FACTOR 97.6 79.7 86.3

15. UNIT AVAILABILITY FACTOR 97.6 79.7 86.3

16. UNIT CAPACITY FACTOR (Using MDC)  %.6 78.5 84.1

17. UNIT CAPACITY FACTOR (Using Design MWe) 92.8 75.4 80.8

18. UNIT FORCED OUTAGE RATE 2.41 0.71 2.16

19. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH):

Refueling Date: 10/05/ %

Duration: 42 days

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

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PART E UNIT SHUTDOWNS AND POWER REDUCTIONS ,

DOCKET NO.: 50-483 UNIT NAME: CALLAWAY UNIT 1 (

DATE: 9/12/95 COMPLETED BY: M. A. Holmes TELEPHONE: 314/676-8842 FAX- 314/676-8562 REPORT MONTH: AUGUST 1995 METHOD OF TYPE SHUTTING DOWN F: FORCED DURATION THE REACTOR OR CORRECTIVE NO. DATE S: SCHEDULED (HOURS) REASON REDUCING POWER ACTIONS / COMMENTS 5 950816 F 17.9 A 3 SEE

SUMMARY

BELOW.

SUMMARY

On 8/16/95 at 0943, a turbine trip / reactor trip occurred as a result of a loss ofcondenser vacuum caused by tripping of the 'A' Circulating Water Pump from a failed field excitation theostat and the automatic opening of the steam dumps in response to the resultant turbine runback (LER 95-005).

REASON METHOD A: EQUIPMENTFAILURE(EXPLAIN) 1: MANUAL l B. MAINT. OR TEST 2: MANUAL SCRAM C: REFUELING 3: AUTOMATIC SCRAM D: REGULATORY RESTRICTION 4: OTHER(EXPLAIN)

E: OFERATORTRAINING AND LICENSE EXAMINATION F: ?.9 MINISTRATION j G: OPERATIONALERROR(EXPLAIN)

H: OTHER(EXPLAIN) -

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