ML20095H374

Monthly Operating Repts for Nov 1995 for Calvert Cliffs Nuclear Power Plant Units 1 & 2

ML20095H374
Person / Time
Site:	Calvert Cliffs
Issue date:	11/30/1995
From:	Cruse C, Olsen O BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9512220308
Download: ML20095H374 (12)

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CHAut.rs 11. CuosE Baltimore Gas and Electric Company i Plant General Manager Calvert Cliffs Nuclear Power Plant

• 1650 Calvert Cliffs Parkway Calvert Cliffs Nuclear Power Plant Lusby, Maryland 20657 410 586-2200 Ext. 4101 Local 410 260-4101 Baltimore December 15,1995 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Document Control Desk

SUBJECT:

Calvert Clifli Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 November 19)5 Operatine Data Reports The subject reports are being sent to you as required by Technical Specification 6.9.1.6.

Should you have any questions, please contact Mr. Bruce Mrowca at (410) 260-3989.

Very truly yours, CHC/HOO/bjd Attachments cc: D. A. Brune, Esquire R. A. Hartfield, NRC J. E. Silberg, Esquire R.1. McLean, DNR L. B. Marsh, NRC J. H. Walter, PSC D. G. Mcdonald, Jr., NRC P. Lewis, INPO T. T. Martin, NRC K. N. Larson, ANI Resident Inspector, NRC l

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i UNIT 1 i OPERATING DATA REPORT ee************************************************************************** ,

a Docket No. 50-317 l

December 15, 1995 )

j Prepared by Herman O. Olsen  :

Telephone:(410)260-6734 )

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OPERATING STATUS 4 i

j 1. UNIT NAME Calvert Cliffs Unit 1 1 4

2. REPORTING PERIOD NOVEMBER 1995 I 3. LICENSED THERMAL POWER (MWT) 2700

4. NAMEPLATE RATING (GROSS MWe) 918 l 5. DESIGN ELECTRICAL RATING (NET MWe) 845 1 6. MAXIMUM DEPENDABLE CAP'Y (GROSS MWe) 865

, 7. MAXIMUM DEPENDABLE CAP'Y (NET MWe) 835 i 8. CHANGE IN CAPACITY RATINGS NONE

9. POWER LEVEL TO WHICH RESTRICTED N/A

10. REASONS FOR RESTRICTIONS N/A i Year- Cumulative j This month to-Date to Date i' 11. HOURS IN REPORTING PERIOD 720 8,016 180,277

12. NUMBER OF HOURS REACTOR WAS CRITICAL 611.0 7,801.4 130,682.1

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 3,019.4 L JI. HOURS GENERATO.R ON LINE 564.2 7,743.2 127,979.7

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 1,291,179 20,402,235 325,570,128

17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 423,345 6,699,128 108,069,744

18. NET ELECTRICAL ENERGY GENERATED (MWH) 398,376 6,414,593 102,908,861

19. UNIT SERVICE FACTOR 78.4 96.6 71.0

20. UNIT AVAILABILITY FACTOR 78.4 96.6 71.0 1

21. UNIT CAPACITY FACTOR (USING MDC NET) 66.3 95.8 69.1 1

22. UNIT CAPACITY FACTOR (USING DER NET) 65.5 94.7 67.6

23. UNIT FORCED OUTAGE RATE 21.6 3.4 8.5 )

24. SHUTDOWNS SCHEDULED OVER THE NEXT SIX MONTHS (TYPE, DATE AND DURATION):

Refueling 03/15/96 54 days

25. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF START-UP:

N/A

AVERAGE DAILY UNIT POWER LEVEL ce**********************************************************************

Docket No. 50-317 Calvert Cliffs Unit No. 1 December 15, 1995 Prepared by Herman O. Olsen Telephone: (410) 260-6734 NOVEMBER 1995 Average Daily Power Level Average Daily Power Level Day (MWe-Net) Day (MWe-Net) 1 855 17 -32 2 854 18 -31 3 853 19 -32 4 856 20 245 5 856 21 578 6 856 22 577 7 856 23 578 8 859 24 580 9 527 25 581 10 -33 26 580 11 -33 27 582 12 36 28 582 13 775 29 584 14 855 30 584 15 858 16 811

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-317 ,

UNIT NAME Cahert Cliffs-UI DATE D m M 15.1995 COMPLETED BY Herman O. Olsen TELEPHONE (4101 260 4 734 REPORT MONTH November 1995 . .

METHOD OF SHUITING LICENSEE CAUSE & CORRECTIVE DURATION DOWN EVENT SYSTEM COMPONENT ACTION TO NO. DATE TYPEI (HOURS) REASON 2 REACTOR 3 REPORT # CODE 4 CODES PREVE'TF RECURRENCE 95-005 110995 F 74.0 A 2 95-005 JB TC On 11/09/95 at 1501 the reactor was manually trippai due to increasing Steam C-tar lesels, aRer attempts by the operators to place the feedwater regulating vaht controller in manual failed. The digital feedwater control module output signal was not responding, having a slowly increasing signal trend u hich caused the feedwater regulating vahr to slowly open. The controller was sent to the sendor for further root cause analysis. Additional corrective actions are underway to widress other causal factors.95-006 111695 F 81.8 A 2 95-006 JK SCO On 11/16/95 at 2252 the reactor was manually tripped following a loss of one Main Feed Pump. Trouble shooting determined that oil losses from the trip mechanism and turbine thrust allourd oil pressure to drop and trip the pump before the stan&y oil pump could restore pressure. The cause for the initial oil drop has not been determined.09-007 112095 F 247.3 H 5 JK SCO On 11/20/95 at 1640 reactor power was restored to 70*/.

while trouble shooting and repairs were made to the Steam Generator Feed Pump Control system. Power remained at 70% through the end of the month.

1 F: Forced 2 Reason. 3 Method: 4 IEEE Standard 805-1984 S: Scheduled A - Equipment Failure 1 - Manual B - Maintenance or Test 2 - Manual Scram.

C - Refueling 3 - Automatic Scram 5 IEEE Standard 803A-1983 D - Regulatory Restriction 4 - Contmued E - Operator Trammg & License Exammation 5 - Reduced lead F - Administrative 9 - Other G - Operational Error H - Other

REFUELING INFORMATION REOUEST

1. Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No.1.

Scheduled date for next refueling shutdown: March 15,1996 # I 2.

3. Scheduled date for restart following refueling: May 8,1996 * #

4. Will refueling or resumption of operation thereafter require a Technical Specification change or j other license amendment?

Yes.

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a. License amendment to allow installation of a new diesel generator.

b. License amendment to reflect the new electrical distribution system configuration.  ;

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c. An amendment and exemption to allow the use of four lead fuel assemblies with advance cladding materials.

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d. License amendment to extend some instrument surveillances to allow a delayed start I of the refueling outage. l

e. License amendment to extend the requirement to do an ILRT so that the test does not have to be performed this outage.

f. License amendment to modify the MTC limits to account for additional steam generator tubes plugged.

g. License amendment which would allow the sleeving of steam generator tubes as a repair method.

5. Scheduled date(s) for submitting proposed licensing action and supporting information.

a. October 2,1995

b. November 1,1995 *

c. July 13,1995

d. October 20,1995

e. December 1995 *

f. January 1996

g. November 1995

6. Important licensing considerations associated with the refueling.

Physical modifications required to bring Calvert Cliffs in compliance with the Station Blackout rule will be completed in the 1996 Unit I refueling outage.

7. The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool.

(a) 217 (b) 1434 (Note 2)

Spent fuel pools are common to Units I and 2.

8. (a) 'Ihe present licensed spent fuel pool storage capacity, and (b) the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies.

(a) 4710(Note 1) (b) 0 5

9. The projected date of the last refueling that can be discharged to the Spent Fuel Pool assuming the present licensed capacity and maintaining space for one full core off-load.

March 2007 NOTE 1: 4710 totallicensed site storage capacity.

(1830 pool + 2880 ISFSI)

NOTE 2: 240 Spent Fuel Assemblies in the ISFSt.

l Entry has changed since last reported.  !

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1. These are the dates reported in the Business Plan, i

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. l DOCKET NO. 50-317 CALVERT CLIFFS - UNIT 1 December 15,1995 1 i

SUMMARY

OF OPERATING EXPERIENCE November 1995 l

1 The unit began the month at 100% (840 MWe).

l A #11 Steam Generator high level alarm was received and after verifying that the level was increasing, plant operators attempted to place the feedwater regulating valve controller in manual. When these efforts failed, the reactor was manually tripped at 1501 on 11/09/95. Trouble shooting and repairs were nude to l the feedwater regulating valve controller and the reactor was returned to 100% power at 0915 on 11/13/95. j The reactor was manually tripped at 2252 on 11/16/95 when #12 feedwater pump tripped. Trouble shooting identified several minor problems that together, combined to increase the pump's sensitivity to trip conditions. Adjustments were made to correct these problems. The cause for the initial drop in the trip mechanism's hydraulic oil pressure has not been determined. The unit was returned to operation at 0837

{

on 11/20/95 and limited to the maximum power level for single feedwater pump operation while evaluating I the pump's performance The unit continued to operate at 70% power (575 MWe) for the remainder of the month.

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UNIT 2 OPERATING DATA REPORT

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l Docket No. 50-318 December 15, 1995

Prepared by Herman O. Olsen 2 Telephone

(410)260-6734 OPERATING STATUS s

1. UNIT NAME Calvert Cliffs Unit 2

2. REPORTING PERIOD NOVEMBER 1995 j 3. LICENSED THERMAL POWER (MWT) 2700

4. NAMEPLATE RATING (GROSS MWe) 911 i 5. DESIGN ELECTRICAL RATING (NET MWe) 845 1 6. MAXIMUM DEPENDABLE CAP'Y (GROSS MWe) 870

! 7. MAXIMUM DEPENDABLE CAP'Y (NET MWe) 840

$ 8. CHANGE IN CAPACITY RATINGS NONE

9. POWER LEVEL TO WHICH RESTRICTED N/A i 10. REASONS FOR RESTRICTIONS N/A E

l Year- Cumulative 1 l: This month to-Date to Date 1 ------------------------------------

11. HOURS IN REPORTING PERIOD 720 8,016 163,632

12. NUMBER OF HOURS REACTOR WAS CRITICAL 720.0_ 6,461.8 120,498.8

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1,296.6

14. HOURS GENERATOR ON LINE 720.0 6,378.7 118,829.4

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 1,940,982 16,828,020 304,324,949

17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 642,244 5,508,540 100,523,849

18. NET ELECTRICAL ENERGY GENERATED (MWH) 618,184 5,268,979 96,090,589

19. UNIT SERVICE FACTOR 100.0 79.6 72.6

20. UNIT AVAILABILITY FACTOR 100.0 79.6 72.6

21. UNIT CAPACITY FACTOR (USING MDC NET) 102.2 78.3 71.1

22. UNIT CAPACITY FACTOR (USING DER NET) 101.6 77.8 69.5

23. UNIT FORCED OUTAGE RATE 0.0 2.8 5.7

24. SHUTDOWNS SCHEDULED OVER THE NEXT SIX MONTHS (TYPE, DATE AND DURATION):

N/A

25. IF UNIT IS SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF START-UP:

N/A

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. AVERAGE DAILY UNIT POWER LEVEL oc**********************************************************************

Docket No. 50-318 Calvert Cliffs Unit No. 2 December 15, 1995 Prepared by Herman O. Olsen Telephone: (410) 260-6734 NOVEMBER 1995 i l

Average Daily Power Level Average Daily Power Level Day (MWe-Net) Day (MWe-Net)

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l 1 853 17 856 l l

2 852 38 855 i 3 852 19 855 4 856 20 858 5 857 21 859 6 856 22 859 7 857 23 859 8 857 24 859 9 858 25 858 )

10 888 26 859 11 857 27 860 12 858 28 861 13 858 29 861 14 858 30 860 l l

15 858 l 16 866

t UNIT SHUTDOWNS AND POWER REDUCTIONS '

DOCKET NO. 50-318 ~

r UNIT NAME Cahest Cidfs4J2 ,

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DATE h 15.1995 COMPLEIED BY HennasO Olsen TELEPHONE (410)260 4 734 i REPORT MONTH Nevensber 1995 -

I MEH10D OF SHUITING LICENSEE CAUSE & CORRECTIVE DURATION DOWN EVENT SYSTEM COMPONENT ACIlONTO NO. DATE TYPEI GIOURS) REASON 2 REACTOR 3 REPORT # CODE 4 CODES PREVENT RECURRENCE There were no significant power redweves for this 4 nmnth. t t

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1 F: Forced 2 Reason 3 Mcthod. 4 IEEE Srmulard 805-1984 S: Scheduled A- Equipment Failure 1 - Manual  !

B - Maintenance or Test 2 - Manual Scram C - Refueling 3 - Automauc Scram. 5 IEEE Standard 803A-1983

D - Regulatory Restriction 4 - Continued E - Operator Traming & License Framinath 5 -Reduced Load F- Admnustrative 9 - Other t G - Operational Error '

H - Other l

a m _ . _ _ _ _ _ . . ______m._ _ _ . _ _ _ _ _ . _ . _ _ _ _ _ _ _ _ _ ____ _ __ _ _ - _ _ _ _ _ _ _ ____-____m _____s

9 REFUELING INFORMATION REOUEST

1. Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No. 2

2. Scheduled date for next refueling shutdown: March 14,1997 #

3. Scheduled date for restart following refueling: April 23,1997 #

4. Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

No. ,

S. Scheduled date(s) for submitting proposed licensing action and supporting information.

i None. I

6. Important licensing considerations associated with the refueling. i None.

7. He number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool. l (a) 217 (b) 1434 (Note 2)

Spent fuel pools are common to Units 1 and 2.

8. (a) The present licensed spent fuel pool storage capacity, and (b) the size of any increase in ,

licensed storage capacity that has been requested or is planned, in number of fuel assemblies. '

(a) 4710(Note 1) (b) 0

9. He projected date of the last refueling that can be discharged to the Spent Fuel Pool assuming the present licensed capacity and maintaining space for one full core off-load.

March 2007 NOTE 1: 4710 total licensed site storage capacity.

(1830 pool + 2880 ISFSI)

NOTE 2: 240 Spent Fuel Assemblies in the ISFSI. l Entry has changed since last reported.

1. These are the dates reported in the Business Plan.

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, DOCKET NO. 50-318 CALVERT CLIFFS - UNIT 2 December 15,1995

SUMMARY

OF OPERATING EXPERIENCE November 1995 The unit operated at 100% power (840 MWe) for the entire month.

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