ML20070K699

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Monthly Operating Repts for Feb 1991 for Calvert Cliffs Nuclear Power Plant Units 1 & 2
ML20070K699
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 02/28/1991
From: Denton R, Shanley L
BALTIMORE GAS & ELECTRIC CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9103190101
Download: ML20070K699 (12)
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BALTIMORE i GAS AND l ELECTRIC CHARLES CENTER e P.O. BOX 1475

A E DENTON atutne. uxsActn March 12, 1991 C AiVi ni CLIF F S l

U.S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Document Control Desk

SUBJECT:

Calvert Cliffs Nuclear Power Plant Unit Nos. 1 6 2; Dockets 50-317 and 50-318 February 1991 Operatint Data Reports Centlemen:

The subject reports are being sent to you as requited by Technical Specification 6.9.1.6, should you have any further questions regarding this matter...please contact Bruce Mrowca at (301) 260-3989.

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  • uly yours,

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reb / F/reu A t tachmr.it s cc: D. A. Brune, Esqulre J. E. S11 berg, Esquire R. A. Capra, NRC D. C . Mcdonald , J r . , NRC T. T. Martin, NRC R. I . McLean, DNR R. Hartfield, NRC J. Wheelock, INPO J. H. Walter Resident Inspector, NRC 9103190101 910228 PDR ADOCK C5000317 R POR kl

. U..S. Nuclear Regulatory Commission Marci,: .2, 1991

, Page 2 of 2 bec: J . A. Tiernan/A. J . Slusark C. H. Cruse P. E. Katz

, R. P. Heibel T. N. Pritchett M. J. Micrnicki V. A. Thornton M. Gavrilas E. I. Bauereis R. B. Pond, J r .

S . R. Buxbaun. J r .

C. C. Lawrence, III A. R. Thornton.

L. B. Russell J. R. Lemons R. M. Douglass R. F. Ash W. R. Corcoran t

R, E. Denton l R. C. DeYoung C. P. Johnson 1 J.. Connolly F s. Munno R. E, Nagel l

E. K. Bewley J . E. Ringsdorf, J r.

J, F, Lohr P. G. Chabot/B, B. Mrowca P. A. File /K. J. Allor I. A. Liberatore/C.'Behnk) l Bo. Montgomery D. Song G. L. Adams B. Watkins A. B. Anuj e G. L. Detter G. J. Falibota l L. P. Graber D. V. Graf L. O. Wenger P. A. Pieringer J. E, Baum R. C. Johnson (2) '

R. C. L. Olsen

]. Tecnnical Librarian File i

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UNIT 1 OPERATING DATA REPORT oco******************************************************v******************

uccket No. 50-317 arch 12, 1991 Trepared by Leo Shanley 1

'. 11ephone: (301) 260-6744 OPERATING STATUS I

1. UNIT NAME Calvert Cliffs Ut:it 1
2. REPORTING PERIOD FEBRUARY 1991
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) 860
7. MAXIMUM DEPENDABLE CAP'Y (NET MWe) 825
8. CHANGE IN CAPACITY RATINGS none
9. POWER LEVEL TO WHICH RESTRICTED n/a
10. REASONS FOR RESTRICTIONS n/a Cumulative This month Year-to-Date- to Date
11. HOURS IN REPORTING PERIOD 672 1,416 138,613
12. NUMBER OF HOURS REACTOR WAS CRITICAL 283.7 1,027.7 97,544.5
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 3,019.4
14. HOURS GENERATOR ON LINE 262.9 1,006.9 95,296.7
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 .0.0
16. GROSS THERMAL ENERGY GENERATED (MWH) 682,267 2,498,016 239,528,730
17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 226,121 828,495 79,659,262
18. NET ELECTRICAL ENERGY GENERATED (MWH) 215,812 791,526 175,681,705 l 19. UNIT SERVICE FACTOR 39.1 71.1 68.8
20. UNIT AVAILABILITY FACTOR 39.1 71.1 68.8
21. UNIT CAPACITY FACTOR (USING MDC NET) 38.9 .67.8 66.2
22. UNIT CAPACITY FACTOR (USING DER NET) 38.0 66.2 .64.6
23. UNIT FORCED OUTAGE RATE 6G.9 28.9 9.7
24. SHUTDOWNS SCHEDULED OVER THE NEXT 1

SIX MONTHS (TYPE, DATE AND DURATION):

Maintenance / Test, May 4, 1991 for 58 days

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

N/A i

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UNIT SHUTDOWNS AED POWER REDUCTIONS DOCKET NO. 50 117 ,

j UNIT NAME Calvert Cliffs-U1 DATE March 12. 1991 .

i COMPLETED BY Leo Shanley I j REPORT MONTH Februarv ICL TELEPHONE (301)250-6744 I t

J l METHOD OF e DURATION ,

SHUTTING LICENSEE SYSTEM COMPONENT CAUSE & 0%ECTIVE  !

1 NO. DATE TYPEl (HOURS) REASON 4 DOWN EVENT ACTION TO REACTOR 3 REPORT # CODE4 CODES PREVENT RECL1tRENCE i t

1 j 91-02 910202 F 409.1 B 1 N/A SF PIPEXX 1). Unit was shutdown to inspect

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and, if necessary, clean out ,

j containment sump recirculation j suction piping. Debris had been found in the same piping

  • i on Unit 2 and there was a j concern that there was debris in Unit 1.
2) Inspected and cleaned piping. ,

Performed operability l evaluation.  !

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3) Flan is to revise operating ,

procedures to require

installation et a sump cover

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when shutdown to prevent debris [

l fro: entering remp.  !

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, 1 F: Forced 2 Reason: 3 Method: 4 Exhibit C-Instructions 3

S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram. Entry Sheets for License ,

j C-Refueling 3- Autornatic Scram. Event Report (LER) File j D-Regulatory Restriction 4-Other (Explain) (NUREG-0161)

, E-Operator Training & License Examination l

F-Administrative 5 Exhibit I - Same S urce G-Operational Error (Explain) 4 H-Other (Explain) 1 i i- ___ =_. _ _ .

_ __ . . _ _ = _ . _ !

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  • AVERAGE DAILY Ul4IT POWER LEVEL
                                                                                                • +***********************

Docket 11o. 50-317 Calvort Cliffs Unit lio. 1 March 12, 1991 Completed by Leo Shanley Telephone: (301) 260-6744 FEBRUARY 1991 Averago Daily Power Lovel Average Daily Power Level Day (MWo-lict) Day (MWo-lict)

, 1 854 17 0 2 28 18 0 3 0 19 383 4 0 20 856 5 0 21 859 6 0 22 858 7 0 23 859 8 0 24 859 9 0 25 859 10 0 26 859 11 0 27 859 12 0 28 859 13 0 14 0 15 0 16 0 w

D DOCKET y 50 317 CALVERT CLIFFS UNIT 1 March 12, 1991

SUMMARY

OF OPERATING EXPERIENCE February 1991 The unit begar. 1.he month at 100% power (860 MWe).

At 2145 on 1 February, a power reduction was commenced in preparation for an j unplanned maintenance outage. The outage was needed to inspect and, if

) necessary, clean the containment sump recirculation suction piping. This issue surfaced after debris was found in the same piping on Unit 2.

j The generator was removed from the grid on 2 February at 0345 and the reactor was shutdown at 04$2. Inspection and cleanin6 of the containment sump recirculation lines were completed.- llowever, the outage was extended due to:

1. Work required to repair 12B Safety injection Tcnk (S7T) Outlet
Check Valve.
2. Modifications required to the containment pressure transmitter tubing and supports. Prior to modification, the tubing was subject to damage in the event of a seismic transient.

The reactor was taken critical at 0910 on 18 February and the generator was paralleled with the grid at 0454 on 19 February efter repairing leaks on the Main Turbine Control Valve hydraulic system. -100% power was achieved at 2340 on 19 February.

The unit ended the month at 100% power (855 MWe).

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1 March 7, 1991 REFUELING INFORMATION REQUEST

1. Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No.1.
2. Scheduled date for next refueling shutdown: March 6, 1992.

A. Seteduled date for restart following refueling: May 17, 1992.

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

Resumption of operation after refueling will require changes to Technical Specifications. The antic' pated changes will effect consistency between the Unit 2 Cycle 9 Tech specs and the Tech Specs for Unit 1 Cycle 11.

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

November 1, 1991. ( reload submittal )

6. Important licensing considerations associated with the refueling.

None identified at this time.

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

(a) 217. (b) 1326.

Spent fuel pools are comon to Units 1 and 2.

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

(a) 1830. (b) 2880.

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

March 1992.

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UNIT 2 OPERATING DATA REPORT aco*************************************************************************

Docket No. 50-318 March 12, 1991 Prepared by Leo Shanley Telephones (301)260-6744 OPERAT.ING

..... .......... STATUS

1. UNIT NAME Calvert Cliffs Unit 2
2. REPORTING PERIOD FEBRUARY 1991
3. LICENSED THERMAL POWER (MWT) 2700
4. NAMEPLATE RATING (GROSS MWo) 918
5. DESIGN ELECTRICAL RATING (NET MWe) 845
6. MAXIMUM DEPENDABLE CAP'Y (GROSS MWe) 860
7. MAXIMUM DEPENDABLE CAP'Y (NET MWe) 825 .
8. CHANGE IN OAPACITY RATINGS none
9. POWER LEVEL TO WHICH RESTRICTED n/a
10. REASONS FOR RESTRICTIONS n/a Cumulative This month Year-to-Dato to Dato
11. HOURS IN REPORTING PERIOD 672 1,416 121,968
12. NUMBER OF HOURS REACTOR WAS CRITICAL 0.0 0.0 87,437.3
13. REACTOR RESERVE SHUTDOWN HOURS .0 0.0 1,296.6
14. HOURS GENERATOR ON LINE 0.0 0.0 86,228.9
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
16. GROSS THERMAL ENERGY GENERATED (MWH) 0 0 218,389,418
17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 0 0 72,284,632
18. NET ELECTRICAL ENERGY GENERATED (MWH) 0 0 69,042,571
19. UNIT SERVICE FACTOR 0.0 0.0 70.7

( 20. UNIT AVAILABILITY FACTOR 0.0 0.0 70.7 l

21. UNIT CAPACITY FACTOR (USING MDC NET) 0.0 0.0 68.6
22. UNIT CAPACITY FACTOR (USING DER NET) 0.0 0.0 67.0
23. UNIT FORCED OUTAGE RATE 0.0 0.0 5.3
24. SHUTDOWNS SCHEDULED OVER THE NEXT SIX MONTHS (TYPE, DATE AND DURATION):

N/A

25. IF UNIT IS SMUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF START-UPt March 27, 1991 i

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UNIT SHUTDOVF-1 AND POWER REDUCTIONS DOCKET NO. 50-318 __

l UNIT NAME Calvert C11ff -U2

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DATE March 12. 1391 COMPLETED BY Leo Sharthy ,

REPORT MONTH February 1941 TELEPHONE (3011260-6744 4

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METHOD OF DURATION SHUTTING LICENSEE SYSTEM COMPONENT CAUSE & COPRECTIVE NO. DATE TYPE 1

(HOURS) REASON2 DOWN EVENT ACTION TO O

REACTOR 3 REPORT # CODE CODE S PREVENT RECURRENCE 91-02 910201 .S 672 C N/A N/A Continued shutdown for 8th Cycle Refueling Outage. ,

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Forced Reason: Method: Exhibit C-Instructions

!. Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data i B-Maintenance or Test 2-Manual Scram. Entry Sheets for License C-Refueling 3-Automatic Scram. Event Report (LER) File D-Regulatory Restriction 4-Other (Explain) (NUREG-0161)

E-Operator Training & License Examination 5 Exhit,it I - Same Source F-Administrative G-Operational Error-(Explain)-

H-Other (Explain) i 2

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. j AVERAGE DAILY UNIT POWER LEVEL 00**********************************************************************

Docket No. 50-318 Calvert Cliffs Unit No. 2 March 12, 1991 Completed by Leo Shanley Telephones (301) 260-6744 FEBRUARY 1991 Averago D311y Power Level Average Daily Power Lovel Day (MWe-Not) Day (MWo-Net) 1 0 17 0 2 0 18 0 3 0 19 0 4 0 20 0 5 0 21 0 6 0 22 0 7 0 23 0 8 0 24 0 9 0 25 0 10 0 26 0 11 0 27 0 12 0 28 0 13 0 14 0 l

15 0 i 16 0 l

- . . . _ _ _ _ . ~ . _ . _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ . . _ . . _ _ . _ . . _ _ _ _ . _ . . _ _ _ _ _ . _ _ _ _ _ . _ _ . _ . . . . . _ _ . . . _ _ . _ . _ _ _ . _ . . _

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, DOCKET # 50 318 -

1 CALVERT CLIFFS UNIT 2 March 12, 1991 i

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SUMMARY

OF OPERATING EXPERIENCE i February 1991 i

The unit began the rnonth in a coitinued shutdown for the 8th Cycle Refueling.

l Outage.

The pressurizer bubble was drawn on 10 February.

Secondary vacumn was established on 25 February, 5 Maintenance and Surveillance Test Procedures continued in preparation for '

plant heatup and reactor startup.

3 The unit is scheduled to return to service on March 27,-1993,.

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March 7. 1991 REFUELING INFORMATION RE0 VEST

1. Name of facility: Calvert Cliffs Nuclear Power Plant Unit No. 2.
2. Scheduled date for next refueling shutdown: Parch 20, 1989.**
3. Scheduled date for restart following refueling: March 27, 1991 *
4. Will refueling or resumption of operation thereafter require-a Technical Specification change or other license amendment?

Unit reload license and necessary technical specification changes are approved. The Unit is in an extended refueling shutdown to support system maintenance.

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

supporting information.

Unit reload license has been approved. The Unit is in an extended refueling shutdown to support system maintenance.

6. Important licensing considerations associated with the refueling.

Reload fuel will bo similar to reload fuel inserted into the previous cycle except for the 4.3% enrichment, debris resistant fuel design, and four fuel assemblies containing an alternative burnable absorber.

Changes will be made to the on line incore monitoring erogram.

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

(a) 217. (b) 1326.

Spent fuel pools are comon to Units 1 and 2.

8. (a) The present licensed spent fuel pool storage ca)acity, and size of any increase in licensed storage capacity t1at has been(b) the requested or is planned, in number of fuel assemblies-(a) 1830. (b) 2880.
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 1992.

UNIT CURRENTLY IN REFUELING SHUT DOWN ENTRY HAS CHANGED SINCE LAST REPORTED 3 I

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