Text

Monthly Operating Rept for June 1991 for DC Cook Nuclear Plant Unit 1
	ML17329A078
Person / Time
Site:	Cook
Issue date:	06/30/1991
From:	Blind A, Gillett W; INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	NUDOCS 9107150379
	Download: ML17329A078 (10)
	v • d • e

ACCELERATED DIST+3UTION DEMONST1VjgON SYSTEM REGULATORY XNFORMATXON DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9107150379 DOC.DATE: 91/06/30 NOTARXZED: NO DOCKET FACXL:50-315 Donald C.

Cook Nuclear Power Plant, Unit 1, Indiana 05000315 AUTH.NAME AUTHOR AFFILIATION GILLETT,W.T.

Indiana Michigan Power Co.

(formerly Xndiana

& Michigan Ele BLIND,A.A.

Indiana Michigan Power Co.

(formerly Indiana

& Michigan Ele RECIP.NAME RECIPIENT AFFILIATXON

SUBJECT:

Monthly operating rept for June 1991 for DC Cook Nuclear Plant Unit 1.W/910703 ltr.

DISTRIBUTION CODE:

IE24D COPIES RECEIVED:LTR 0 ENCL I

SXZE:

TITLE: Monthly Operating Report (per Tech Specs)

NOTES:

D RECIPIENT ID CODE/NAME PD3-1 LA COLBURN,T.

INTERNAL: AEOD/DOA NRR/DL~P/LPEB10

~SEE~

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1 1

AEOD/DSP/TPAB NRR/DOEA/OEAB RGN3 COPIES RECIPIENT LTTR ENCL ID CODE/NAME 3

3 PD3-1 PD 1

1 COPIES LTTR ENCL 1

1 1

1 D

D EXTERNAL EG&G BRYCE 1 J ~ H NSIC 1

1 1

1 NRC PDR 1

1 D

NOTE TO ALL"RIDS" RECIPIENTS:

D D

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED:

LTTR 14 ENCL 14

indiana Michigan Power Company Cook Nuclear Plant One Cook Place Bridgman, Ml 49106 616 465 5901 July 3, 1991 ItNEMSIHA RMCIGQH PQUFM U.S. Nuclear Regulatory Commission ATTN:

Document Control Desk Washington, D.C.

20555 Gentlemen:

Pursuant to the requirements of Donald C.

Cook Nuclear Plant Unit 1 Technical Specification 6.9.1.10, the attached Monthly Operating Report for the month of June 1991 is submitted.

Respectfull lin Plant Manag Attachment c:

NRC Region III D.R.

Hahn EPRI Nuclear Safety Analysis Center R.C. Callen S.

Hamming J.G. Keppler INPO Records Center ANI Nuclear Engineering Department D.H. Williams, Jr.

E.E. Fitzpatrick J.F.

Kurgan J.J.

Markowsky D.A. Timberlake D.W. Paul T.O. Argenta S.H. Steinhart J.L. Leichner J.A.

Isom W.T. Gillett E.A. Smarrella J.C. Krieger B.A. Svensson D.F. Krause E.C.

Schimmel 9107i50379 910630

, PDR "'ADOCK 050003i5

'R FDR gEBV l(I

N.R.C.

OPERATING DATA REPORT DOCKET NO.

50-315 DATE 01-Jul-91 COMPLETED BY WT GILLETT TELEPHONE 616-465-5901 OPERATING STATUS

1. Unit Name D.

C.

Cook Unit 1

2. Reporting Period JUNE,91

3. Licensed Thermal Power (MWt) 3250 4.

Name Plate Rating (Gross MWe) 1152

5. Design Electrical Rating (Net MWe) 1030 6.

Maximum Dependable Capacity (GROSS MWe) 1056 7.

Maximum Dependable Capacity (Net MWe) 1020 notes

8. If Changes Occur in Capacity Ratings (Items no.

3 through

7) Since Last Report Give Reasons 9.

Power Level To Which Restricted. If Any (Net MWe) 10.

Reasons For Restrictions. If Any:

ll. Hours in Reporting Period 12.

No. of Hrs. Reactor Was Critical

13. Reactor Reserve Shutdown Hours 14.

Hours Generator on Line

15. Unit Reserve Shutdown Hours

16. Gross Therm.

Energy Gen.

(MWH) 17.

Gross Elect.

Energy Gen.

(MWH)

18. Net Elect.

Energy Gen.

(MWH),

19. Unit Service Factor

20. Unit Availability Factor

21. Unit Capacity Factor (MDC Net)

22. Unit Capacity Factor (DER Net)

23. Unit Forced Outage Rate 24.

Shutdowns Scheduled over Next Six None This Mo.

Yr. to Date 720.0 4343.0 720.0 3424.7 0.0 0.0 687.4 3208.5 0.0 0.0 2127171 9920282 679680 3198860 654442 3081396 95.5 73.9 95.5 73.9 89.1 69.6 88.2 68.9 4.5 3.9 Months (Type, Date,and Cumm.

144599.0 106811.7 463.0 104837.3 321.0 305349930 99330090 95514869 73.5 73.5 65.7 63.9

7.0 Duration)

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

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

Forcast INITIALCRITICALITY INITIALELECTRICITY COMMERCIAL OPERATION Achieved

AVERAGE DAILY POWER LEVEL (MWe-Net)

DOCKET NO.

50-315 UNIT ONE DATE 01-Jul-91 COMPLETED BY WT GILLETT TELEPHONE 616-465-5901 DAY MONTH AVERAGE DAILY POWER LEVEL JUNE,91 DAY AVERAGE DAILY POWER LEVEL 1

2 3

4 5

6 7

8 9

10 11 12 13 14 15 16 971 569 949 1020 1019 1022 1008 868 908 501 5

555 989 995 989 988 17 18 19 20 21 22 23 24 25 26 27 28 29 30 988 994 998 998 999 1005 1009 1007 1002 991 983 979 981 978

UNIT SIKJZDONNS AND POWER REIXJCTIONS REPORZ KITH:

June 1991 DOQKZ NO UNIT NAME:

IRTE:

CGMIPXZTED BY:

TELEEHONE PAGE:

50-315 D.C.

COOK UNIT 1 July 3, 1991 E.C. Schiamel (616) 465-5901 lof2 MEIHOD OF SHUZFING ItI:CENSEE IURATION IX%A EVEÃZ SYSTEM CGMK5ERZ CMJSE AND CORIKCZIVE ACTION KO NO.

DATE TYPE1 HOURS REASON2 REACKR3 Rzzoar No.

CoDE CoDE PRIvzm RZxxJRImCE 295 910601 S

N/A N/A zz zzzzzz Unit power was reduced to 600MNe (59% RZP) beginning 2100 hours0.0243 days 0.583 hours 0.00347 weeks 7.9905e-4 months an 910601 to acxxzmodate reduced sysbm demand. Unit power was restored to 10%

RZP at 1100 hours0.0127 days 0.306 hours 0.00182 weeks 4.1855e-4 months on 910603.

296 910608 S

N/A N/A Unit power was reduced to 75% RZP beginning 1421 hours0.0164 days 0.395 hours 0.00235 weeks 5.406905e-4 months on 910608 to remove the M'oisture Separator Reheaters DKI

'ork on the MSR's was completed and the unit was restored to 100t RZP at 1605 hours0.0186 days 0.446 hours 0.00265 weeks 6.107025e-4 months on 910609.

1 2

F:

Forced Reason:

S:

Scheduled A:

Ecuipne~ Failure (Explain) c:

Refueling D:

Regulatory Restriction E:

Operator Training and Lice'xamination F:

Administrative G:

Operational Error (Explain)

H:

Other (Explain) 3 Method:

1:

Manual 2:

Manual Scram 3:

AlztcEGtic Scram 4:

Other (Explain) 4 5

Exhibit G - Instructions Exhibit I:

Same Source for preparation of data entry sheets for Licensee Event Report (LER) File (NUHEG 0161)

1 UNIT S1iVKONNS AND EGWER REDUCZIONS REPORT MONTH:

June 1991 DOCKEZ NO:

UNIT NAME:

IKK:

CCMPXZZED BY:

T1K2%82K PAGE:

50-315 D.C.

COOK UNIT 1 July 3, 1991 E.C. Schimmel (616) 465-5901 2of2

~

METHOD OF S1iUZI!ING LICENSEE UJRATION IXMN EVENT SYSTEM COMPONENT CM3SE AND CORRECZIVE ACTION KO NO.

IRTE TYPE BXRS RFASON REACIOR3 REPORT NO.

CODE CODE PREVENT REXXERENCE 297 910610 F

32.6 N/A N/A HA GENOA.

Ihe unit was removed fram service to investigate the cause for main generator exciter field current oscillations and arcing undezneath the exciter. 'Ihe cause was identified as missing bolts on the exciter side of an myansian joint an the AC bus connecting the rectifier cabinet to the exciter stator.

9he missing bolts were installed and the unit was returned to service at 2325 haum on 910611.

100t RTP was reached on 910612.

1 2

F:

Forced Reason:

S:

Scheduled A:

Equipment Failure (Explain)

C:

Refueling D:

Hecp&atozy Restriction E:

Operator Training and License Examination F:

Administrative G:

Operational Ermr (Explain)

H:

Other (Explain) 3 Method:

1:

Manual 2:

M'anual Scram 3:

Aubxatic. Scram 4:

Other (Explain) 4 5

Exhibit G - Instructions Exhibit I:

Same Source for preparation of data entry sheets 'for Licensee Event Report (IZR) File (NUREG 0161)

DOCKET NO:

~50-315 UNIT NAME:

~D.C.

Cook Unit 1 COMPLETED BY:

E.C.

Schimmel TELEPHONE:

(616) 465-5901 DATE:

July 3, 1991 PAGE 1 of 2 MONTHLY OPERATING ACTIVITIES - June 1991 HIGHLIGHTS The unit entered the reporting period at 100% RTP. Unit power was reduced to 59% RTP beginning 2100 hours0.0243 days 0.583 hours 0.00347 weeks 7.9905e-4 months on 910601 for reduced system load demand.

The unit was restored to 100% RTP at 1100 hours0.0127 days 0.306 hours 0.00182 weeks 4.1855e-4 months on 910603. Unit power was reduced to 754 RTP beginning 1900 hours0.022 days 0.528 hours 0.00314 weeks 7.2295e-4 months on 910607 to allow for maintenance activities on the Moisture Separator Reheaters.

Unit power was restored to 100%

RTP at 1605 hours0.0186 days 0.446 hours 0.00265 weeks 6.107025e-4 months on 910609.

A unit shutdown was started at 1048 hours0.0121 days 0.291 hours 0.00173 weeks 3.98764e-4 months on 910610 to remove the unit from service for repair of a connection on the main generator excitation circuit which could not be repaired at power.

The unit was reparalleled to the system at 2325 hours0.0269 days 0.646 hours 0.00384 weeks 8.846625e-4 months on 910610 and 1004 RTP was achieved at 0042 hours4.861111e-4 days 0.0117 hours 6.944444e-5 weeks 1.5981e-5 months on 910613.

The unit exited the reporting period at 1004 RTP.

Gross electrical generation for the month of June was 679680 MWH.

DETAILS 06/01/91 2100 06/02/91 0115 2300 06/03/91 1100 06/07/91 1900 2000 06/08/91 1421 1722 06/09/91 0035 1605 Commenced unit power reduction to 600 MWe (594 RTP) at the system's request.

The unit is at 594 RTP.

Commenced unit power increase to 1004 RTP.

The unit is at 1004 RTP.

Commenced unit power reduction to 95% RTP.

Unit power is stabilized at 95% RTP for the removal of Moisture Separator Reheaters (MSR's) from service for maintenance.

Commenced unit power reduction to 754 RTP for the restoration of the MSR's.

Unit power is stabilized at 75%

RTP for MSR restoration and for system load considerations.

Commenced unit power increase to 1004 RTP.

The unit is at 1004 RTP.

DOCKET NO:

~50-315 UNIT NAME:

~D.C.

Cook Unit 1 COMPLETED BY:

E.C.

Schimmel TELEPHONE:

(616) 465-5901 DATE:

July 3, 1991 PAGE' of 2 Monthly operating activities (cont.)

06/10/91 1048 06/10/9 1

~ 1447 06/10/91 1500 06/11/91 2139 2325 06/12/9 1 084 0 0935 1725 1830 06/13/91 0042 Commenced unit power reduction to remove the unit from service to investigate the cause for generator exciter field current oscillations and electrical arcing underneath the exciter.

Removed the main generator from service.

The reactor is in Mode 2. Reactor power maintained at approximately 24 RTP.

The reactor is in Mode l.

The main generator is paralleled to the system grid. Increasing unit power to 484 RTP.

The unit is at 48%

RTP and holding for thermal power and quadrant power tilt ratio verification.

Commenced unit power increase to 75% RTP.

The unit is at 75% RTP and holding to adjust nuclear instrumentation.

Commenced unit power increase to 1004 RTP.

The unit is at 100% RTP.

DOCKET NO:

50-315 UNIT NAME:

D.C.

Cook Unit 1 COMPLETED BY:

E.C.

Schimmel TELEPHONE:

(616) 465-5901 DATE:

July 3, 1991 PAGE:

1 of 1 MAJOR SAFETY-RELATED MAINTENANCE June 1991 There were no major safety-related maintenance items during the month of June.

ML17329A078

Text

SUBJECT:

7.0 Duration)

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