ML20087K395

Monthly Operating Repts for Jul 1995 for Calvert Cliffs Nuclear Power Plant

ML20087K395
Person / Time
Site:	Calvert Cliffs
Issue date:	07/31/1995
From:	Cruse C, Olsen H BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9508230267
Download: ML20087K395 (11)

Text

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Cnrus.Es II. C Use Baltimore Gas and Electric Company i Plant General Manager Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Calvert Cliifs Nuclear Power Plant Lusby, Maryland 20657 410 586-2200 Ext.4101 Local 410 260-4101 Baltimore August 15,1995 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Document Control Desk

SUBJECT:

Calvert Cliffs Nuclear Power Plant

. Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 July 1995 Operatina Data Reports l

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,

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p CHC/IlOO/bjd Attachments cc: D. A. Brune, Esquire R. A. Ilartfield, NRC J. E. Silberg, Esquire R. I. 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 P. R. Wilson, NRC i1

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9508230267 DR 950731 ADOCK 0500o327 PDR I.gI . . . . _ . . . . . . , .. . . . , . .

DOCKET h'O. 50-317 ,

CALVERT CLIFFS - UNIT I August 15,1995

SUMMARY

OF OPERATING EXPERIENCE July 1995 The unit began the month at 100% power (835 MWe).

A power reduction commenced at 1416 on 07/31/95 due to high circulating water temperatures. Power -

was reduced to approximately 55% (410 MWe) to insure adequate heat removal by the Service Water System.

The unit remained at 55% power (410 MWe) through the end of the month while investigating the abnormally high circulating water temperatures.

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UNIT S11UTDOWNS AND POWER REDUCTIONS DOCKET NO. ~ 50-317 '

UNIT NAME Cahrrt Cliffs-UI -.

DATE August 15.1995 COMPLETED BY Herman O. Olsen TELEPHONE (410) 260-6734 REPORT MONTil July 1995 j ME1110D OF l .

j SlitJITING ' LICENSEE CAUSE & CORRECTIVE DURATION DOWN EVENT SYSTEM CohTONENT ACTION TO NO- DATE TYPEI (IIOURS) REASON 2 REACTOR 3 . REPORT # CODE 4 CODES PREVENT RECURRENCE 95002 ; 073195 F 9.7 H 5 317/95-003 BI HX On 07/31/95 at 1416 power was reduced to

{ approximately 55% due to high circulating nter temperature. This reduction was required to insure

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j adequate heat removal could be performed by the Senice Water System. An investigation is on-going to determine the actions required to maintain saltwater inlet temperature below the maximum temperature

- allowed for Senice Water Sptem operability. The unit ,

remained at approximately 55% through tic end of the 'I month.

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

C - Refueling 3 - Automatic Scram. 5 =IEEE Standard 803A-1983 D - Regulatory Restriction 4 - Continued E - Operator Trammg & License Examination Reduced Load F - Administrative 9 - Other G - Operational Error H - Other i

_ . _ _ _ _ _ ..____.-._.m_,--_-_ .___...._.m...m-_.____.___m_ _. ..___._..__.________m__..___._m__ _ _ ______.____.-___m_ . _ _ _ . _ _ _ _ . _ _ _ . _ _ _ _ _ _ _ m.____.--_______m_ ___w__m_- - -w- rw-. m__ - _ m

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UNIT: 1 OPERATING DATA REPORT cc**************************************************************************

August 15, 1995 Prepared by Herman'O.-Olsen Telephone:(410)260-6734 e OPERATING STATUS

1. UNIT NAME Calvert Cliffs Unit 1

2. REPORTING' PERIOD JULY 1995

3. LICENSED THERMAL POWER (MWT) 2700  ;

4. NAMEPLATE RATING (GROSS MWe) 918

5. DESIGN ELECTRICAL _ RATING (NET MWe) 845

.6. MAXIMUM DEPENDABLE-CAP'Y (GROSS MWe) 865

7. MAXIMUM DEPENDABLE CAP'Y (NET MWe) 835

.8. CHANGE IN CAPACITY RATINGS NONE

9. POWER: LEVEL TO WHICH RESTRICTED N/A .

. :UD . REASONS FOR RESTRICTIONS N/A l Year- Cumulative This month to-Date. to Date ,

-11. HOURS IN REPORTING PERIOD 744 5,087 177,348

12. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 4,981.4 127,862.1 :

13. REACTOR RESERVE SHUTDOWN HOURS .

0.0 0.0 3,019.4 ;

14. HOURS GENERATOR ON LINE 744.0 4,970.0 125,206.5

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0 -

US . GROSS THERMAL ENERGY GENERATED (MWH) 1,995,187 13,308,637 318,476,530~

17. GROSS ELECTRICAL ENERGY' GEN'TED(MWH) 643,150 4,405,895 105,776,511

18. NET ELECTRICAL ENERGY GENERATED (MWH) 616,280 4,225,832 100,720,100

19. UNIT SERVICE FACTOR 100.0 97.7 70.6

20. UNIT AVAILABILITY FACTOR 100.0 97.7 70.6 >

21. UNIT CAPACITY FACTOR (USING MDC NET) 99.2 99.5 68.8

22. UNIT CAPACITY FACTOR (USING DER NET) 98.0 98.3 67.2

23. UNIT FORCED OUTAGE RATE 0.0 2.3 8.6

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

N/A

25. IF SHUTDOWN AT END OF REPORT PERIOD, '

ESTIMATED DATE OF START-UP:

N/A

l"lY' - ' '

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-a. A'VERAGE DAILY UNIT POWER LEVEL -

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Docket No. 50-317 Calvert Cliffs Unit No.-1  !

August 15, 1995 H

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Prepared by Herman O. Olsen Telephone: (410)-260-6734 JULY 1995 -

Average Daily Power Level Average Daily Power' Level' .

Day (MWe-Net) Day (MWe-Net) 1 842 17 832 2 839 18 830 l 3 840 19 828 4 840 20 830 ,

t 5 839 21 830 ,

6 841 22 830 7 23 839 831 8 837 24 827

• 9 836 25 829 i

10 836 26 830  !

11 836 27 829 12 836 -28 830 i

13 836 29 829 .!

14 836 30 824 .

15 835 31 670 16 833 1

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L August 15,1995 NFM 95-214 Page 2 of 3,.

i. REFUEL,1NG INFORM ATION REOUEST

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

2. Scheduled date for next refueling shutdown: March 1,1996

3. Scheduled date for restart following refueling: April 19,1996

• i' 4. Will refueling or resumption of operatica thereafter require a Technical Specification change or other license amendment?

Yes.

a. License amer Jment to reflect the new electrical distribution system configuration.

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

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

a. August 1995*

b. July 13,1995*

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. He 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) De 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. 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 total licensed site storage capacity.

(1830 pool + 2880 ISFSI)

NOTE 2: 240 Spent Fuel Assemblies in the ISFSI.

• Entry has changed since last reported.

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, UNIT 2 OPERATING DATA REPORT--

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Docket No. 50-318 ,

August-15, 1995 Prepared by Herman O. Olsen Telephone:(410)260-6734 P

OPERATING STATUS

1. UNIT NAME Calvert Cliffs Unit 2 l

~2. REPORTING PERIOD JULY 1995

3. LICENSED THERMAL POWER (MWT) 2700  ;

4. NAMEPLATE RATING (GROSS MWe) 911

5. DESIGN ELECTRICAL RATING (NET MWe) 845

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

10. REASONS FOR RESTRICTIONS N/A Year- Cumulative This month to-Date to Date .

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11. HOURS IN REPORTING PERIOD 744 5,087 160,703

12. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 3,532.8 117,569.8

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1,296.6

14. HOURS GENERATOR ON LINE 730.4 3,449.7 115,900.4

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

'16. GROSS THERMAL ENERGY GENERATED (MWH) 1,924,812 9,037,940 296,534,869

17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 616,036 2,972,787 97,988,096 i

18. NET ELECTRICAL ENERGY-GENERATED (MWH) 589,598 2,835,625 93,657,235  !

19. UNIT SERVICE FACTOR 98.2 67.8 72.1

20. UNIT AVAILABILITY FACTOR 98.2 67.8 72.1

21. UNIT CAPACITY FACTOR (USING MDC NET) 94.3 66.4 70.5

22. UNIT CAPACITY FACTOR (USING DER NET) 93.8 66.0 69.0

23. UNIT FORCED OUTAGE RATE 1.8 5.1 5.8-

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

N/A

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

N/A i

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• - AhERAGE DAILY ~ UNIT POWER LEVEL

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Docket No. 50-318 '

'Calvert Cliffs Unit No. 2' August- 15, 1995 Prepared by Herman O. Olsen Telephone: (410) 260-6734

' JULY 1995

-Average Daily Power Level Average' Daily Power Level'

. Day Day (MWe-Net) (MWe-Net) ,

1 836 17 827 2 832 18 825 I 3 832 19 826  ;

4 831 20 827 '

5 829 21 826 6 832 22 825 r i

7 832 23' 824 I 8 724 24 317 i 9 791 25 396  ;

10 832 26 818 l i

11 831 27 821  :!

12 830 28 822 13 831 29 824 f 14 831 30 820 15 830 31 817 16 828 ,

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-318

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UNIT NAME ' Cahert Clifts-U2  ;

DATE August 15.1995 COMPLETED BY Herman O. Olsen TELEPHONE (410) 260 6734

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REPORT MONTil July 1995 1

METilOD OF .

SIRTITING LICENSEE CAUSE & CORRECTIVE DURATION DOWN EVENT SYSTEM COMPONENT ACTION TO NO. DA1E TYPEI (IIOURS) REASON 2 REACTOR 3 REPORT # CODE 4 CODES PREVENT RECURRENCE 95-007 950724 F 1.5 A 5 N/A AA Z1 Commenced reducing power on 07/24/95 at 0000 to repair CEA #8 secondary position indication.

95-G S 950724 F 37.7 A 5 N/A TG FCV Power uns reduced to approximately 60% whe.n the .

Main Turbine governor vahr GV-2 failed to respond during the down power. Power ums reduced to 10Y. and the unit uns remond from the grid at 1545 to conduct repairs. Completed repairs to GV-2 and CEA #8 i

secondary position indication and paralleled to the grid on 7/25/95 at 0522.

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 - Cor mued E - Operator Training & License Examination 5 - Retuced load F - Administrative 9 - Cr.her G - Operational Error H - Other

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'DOCKETNO 50-318

- CALVERT CLIFFS - UNIT 2 August 15,1995 b

SUMMARY

OF OPERATING EXPERIENCE '

~ July 1995

. The unit began the month at 100% power (835 MWe). On 07/08/95 at 0400 power was reduced to 85%

- for waterbox cleaning. Power was returned to 100% on 07/09/95 at 1221.

On 07/24/95 at 0000 a power reduction to 30% was being perforrned to repair control element assembly.

(CEA) #8 secondary position indication. At approximately 60% the Main Turbine governor valve GV-2 was identified as not responding correctly during the down power. Trouble shooting identified that repairs to GV-2 would require removal from the grid. The power was reduced to 10% and the unit was removed from the grid at 1545. Repairs were completed and the unit was paralleled to the grid on 07/25/95 at 0522.

Power was restored to 100% on 07/26/95 at 0200 The unit ended the month at 100% power (820 MWe).

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K.{~C j August 15,1995 -

NFM 95-214 i Page 3 of 3,. -

REFUELING INFORMATION REOUEST  !

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

2. Scheduled date for next refueling shutdown: March 1,1997 ,

3. Scheduled date for restart following refueling: April 9,1997

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

No.  ;

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

None. -

6. Important licensing considerations associated with the refueling.  ;

None. q

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

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

Spent fuel pools are common to Units I and 2. ,

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

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

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 total licensed site storage capacity. .',

(1830 pool + 2880 ISFSI) l NOTE 2: 240 Spent Fuel Assemblies in the ISFSt.

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Entry has changed rince last reported. .

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