ML20066G349

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Monthly Operating Repts for Dec 1990 for Calvert Cliffs Units 1 & 2
ML20066G349
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 12/31/1990
From: Denton R, Shanley L
BALTIMORE GAS & ELECTRIC CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9101280014
Download: ML20066G349 (12)
v • d • e


Text

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. D ALTIMORE GAS AND e ELECTRIC l

CHARLES CENTER e P.O. BOX 1475

  • BALTIMORE, MARYLAND 21203 1475 A E.DENTON 1 omnatumorn January 11, 1991 CALVIfit CLIFFS l i

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 December 1990 Oh sting D.ata Reports Centlemen:

The subject reports are being sent to you as required by Technical Specification 6.9.1,6.

! Should you have any further questions regarding this matter, please contact Bruce Mrowca at (301) 260-3989.

1 yours, e nw RED /LBS/reu Attachments cc: D. A. Brune, Esquire J. E. Silberg, Esquire R. A. Capra, NRC D. G. Mcdonald, Jr. , NRC T. T. Martin, NRC R. I. McLean, DNR R. Hartfield, NRC l J. Wheelock, INPO Resident Inspecwi . NRC 9101280014 901231 PDR R

ADOCK 05000317 PDR f)b

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.U. S. Nuclear Regulatory Commission .

January 11, 1991

. Pago 2 of 2 bec: J. A. Tiernan/A. J. Slusark C. H. Cruse P. E. Katz R. P. Heibel T. N. Pritchett M. J. Hiernicki W. A. Thornton M. C. Gavrilas E. I. Bauereis R. B. Pond, Jr.

S. R. Buxbaum. Jr.

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

L. B. Russell J. R. Lemons R. M. Douglass R. F. Ash W. R. Corcoran R. E. Denton R. C. DeYoung C. P. Johnson J. J. Connolly J. H. Walter G L. Bell M. L. Stone E. K. Bewley J . E. Ringsdorf, Jr.

J . F. Lohr P. C. Chabot/B. B. Mrowca P. A. File /K. J. Allor I. A. Liberatore/C. Behnke B. S. Montgomery D. Song G. L. Adams (2 copice)

A. B. Anuj e G. L. Detter G. J. Falibota L, D. Graber D. V. Graf L. S. Larragoite P. A. Pieringer J. E. Baum Technical Librarian i File l

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UNIT 1 x tATING DATA REPORT coo ************************. , ,4.*********************a*********************

Docket No. 50-317 January 11, 1991 Prepared by Leo Shanley Telephone:(301)260-6744 OPERATING

..... ....... ... STA.TUS

1. UNIT NAME Calvert Cliffs Unit 1
3. REPORTING PERIOD DECEMBER 1990
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 Ycar-to-Date to Date
11. HOURS IN REPORTING PERIOD 744 8,760 137,197
12. NUMBER OF HOURS REACTOR WAS CRITICAL 271.7 1,924.5 96,516.8
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 3,019.4
14. HOURS GENERATOR ON LINE 260.6 1,841.2 94,289.8
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
16. GROSS THERMAL ENERGY GENERATED (MWH) 667,565 4,339,464 237,030,714
17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 220,862 1,411,650 78,830,767
18. NET ELECTRICAL ENERGY GENERATED (MWH) 210,771 1,344,367 74,890,177
19. UNIT SERVICE FACTOR 35.0 '21.0 68.7
20. UNIT AVAILABILITY FACTOR 35.0 23.0 68.7
21. UNIT CAPACITY FACTOR (USING MDC NET) 34.3 UJ . 6 66.2
22. UNIT CAPACITY FACTOR (USING DER NET) 33.5 18-2 64.6
23. UNIT FORCED OUTAGE RATE 0.0 1.8 9.4
24. SHUTDOWNS SCHEDULED OVER THE NEXT SIX MONTHS (TYPE, DATE AND DURATION):

Maintenance / Test: March 9, 1991 for 44 days

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

N/A l

i l

i IIT SilDTDOUNS AND POWER REDUCTIONS DOCKET No. 50-317 UNIT NAME Calverr Cliffs-UI I DATE January 11. 1991 ,.

COMPLETED BY Leo Shanlev '

REPORT MONTH December 1990 TELEPHONE (301)260-6744

] MET 110D OF DURATION SHUTTING LICENSEE SYSTEM COMPONENT CAUSE & CORRECTIVE NO. DATE TYPEl (HOURS) REASON 2 DOWN EVENT ACTION TO  ;

, REACTOR 3 REPORT # CODE 4 CODES PREVENT RECURRENCE 1

90-15 901201 S 483.4 B 1 N/A SF PIPEXX 1) Unit was shutdown to investigate and repair nitrogen leaks from 11B and 12B Safety  ;

Injection Tanks (SIT).

2) Source of leaks were found to t be cracked welds on relief l valve piping on top of each of  ;

the SITS. It was determined >

that the cracks were caused by e excessive vibration and cyclic 4

stress on the welded joints.

3) Corrected problems by replacing i i pipes on top of S1Ts and {

relocating relief valves.

I i

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l ,

t 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G-Instructions  !

l

.S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data  !

B-Maintenance or Test 2-Manual Scram. Entry Sheets for License C-Refueling 3-Automatic Scram. Event Report (LER) File i D-Regulatory Restriction 4-Other (Explain) (NUREG-0161)

E-Operator-Training & License Examination F-Administrative 5 Exhibit I - Same Source  !

G-Operational Error (Explain) i  !

a

i AVERAGE DAILY UNIT POWER LEVEL . . l l

                                                                                                                                                • i Docket No. 50-317 Calvert Cliffs Unit No. l' January 11, 1991.

Completed by Leo Shanley,  !

Telephone (301)-260-6744 .

DECEMBER- 1990 l

1 Average Daily Power Level. Average Daily Power Level I Day (MWe-Net) Day ._( MWe-Not).

1 2 17 0 1 2 0 18 0 3 0 19 0 4 0 -20 0 5 0 21 260 6 0 22 783-7 0 23- 858 8 0 24 858 ,

9 0 25 857  ;

10 0 26 859 11 0 27 861-t.

12 0 28 861 13 0 29 861 ~

14 0 30 861

-15 0 31 862

-16 0 l

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DOCKET # $0 317 CALVERT CLIFFS - UNIT 1 January 11, 1991

SUMMARY

OF OPERATING EXPERIENCE December 1990 The unit began the month at 43% power (320 MWe) in the process of lowering power in preparation for a maintenance outage to investigate and repair Safety Injection Tank (SIT) nitrogen leaks and add oil to 12B Reactor Coolant Pump (RCP).

The generator was removed from the grid on 1 December at 0402 ar.d the reactor was shutdown at 0604.

The nitrogen leaks from 11B and 12B SITS were repaired.

1 The oil leak on 12B RCP was discovered to be a leaky flange joint on the pump's lubrication system. The flangt was tightened and oil was added.

Reacter Coolant System heatup was commenced on 18 December. The reactor was critical at 2221 on 20 December and the generator was paralleled with the grid at 0725 on 21 December.

85% Power (710 MWe) was reached at 2210 on 21 December and was held there until 1045 on 22 December for Reactor Protection System testing. 100%

(850 MWe) power was achieved at 1505.

The unit ended the mor.th at 100% power (860 MWe).

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January 8, 1991 6

1. Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No.1,
2. Scheduled date for next refueling shutdown: March 6, 1992
3. Scheduled 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 anticipated changes will effect consistency between the tentatively approved 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.

August 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 common to Units 1 and 2.

8. (a) The present licensed spent fuel pool storage ca>acity, and (b) the size of any increase in licensed storage capacity t1at 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 Pool assuming the present licensed capacity and maintaining i space for one full core off-load.

l l March 1994.

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l UNIT 2 OPERATING DATA REPORT oco********************************************************+****************

Docket No. 50-318 January 11, 1991 Prepared by Leo Shanley Telephone:(301)260-6744 OPERATING STATUS

1. UNIT NAME Calvert Cliffs Unit 2 ,
3. REPORTING PERIOD DECEMBER 1990
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 WHYCH RESTRICTED n/a
10. REASONS FOR RESTRICTICMS n/a Cumulative This month Year-to-Date to Date
11. HOURS IN REPORTING PERIOD 744 8,760 120,552
12. NUMBER OF HOURS REACTOR WAS CRITICAL 0.0 0.0 87,437.3
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1,296.6
14. HOURS GENERATOR ON LINE 0.0 0.0 86,228.9 l 15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0 l 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 71.5
20. UNIT AVAILABILITY FACTOR 0.0- 0.0 7;.5
21. UNIT CAPACITY FACTOR (USING MDC NET) 0.0 0.0 69.4
22. UNIT-CAPACITY FACTOR (USING DER NET) 0.0 0.0 67.8
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 SHUTDOWN AT END OF REPORT PERIOD,

, 2STIMATED DATE OF START-UP:

l February 23, 1991

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

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET Wo. 50-318 UNIT EUAME Calvert Cliffs-U2 DATE January 11. 1991 -

COMPLETED BY Leo Shanlev .

REPORT MONTH December 1990 TELEPHONE (3011760-6744 METHOD OF DURATION SHUTTING LICENSEE SYSTEM COMPONENT CAUSE 6 CORRECTIVE 1 2 ACTION TO NO. DATE TYPE (HOURS) REASON DOWN EVENT REACTOR 3 REPORT f CODE' CODE S PREVENT RECURRENCE 90-12 901201 S 744 C N/A N/A Continued shutdown for 8th Cycle Refueling Outage.

h 1 2 3 0 F: Forced Reason: Method: Exhibit G-Instructions S: Scheduled A-Equipment Failure (Explain). 1-Manual for Prepacation of Data 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 (e xplain) (NUREG-0161) ,

E-Operator Training & License Examination 5

F-Administrative Exhibit I - Same Source G-Operational Error (Explain)

H-Other (Explain)

AVERAGE DAILY UNIT POWER LEVEL oco*********************************************************************

Docket No. 50-318 Calvert Cliffs Unit No. 2 January 11, 1991 Completed by Leo Shanley Telephone: (301) 260-6744 DECEMBER 1990 Average Daily Power Level Average Daily Power Level Day (MWe-Net) 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 29 0 14 0 30 0 15 0 31 0 16 0

l DOCKET # 50 318 CALVERT CLIFFS - UNIT 2 January 11, 1991

SUMMARY

OF OPERATING EXPERIENCE December 1990 The unit began the month in a continued shutdown for the 8th Cycle Refueling l Outage.  ;

l Work was completed on the Salt Vater System.

The following major outage work continued in preparation for plant heatup and reactor startup:

1) Reactor Vessel reassembly.
2) Integrated Leak Rate Test preparations.
3) Modifications to Auxiliary Feedwater Steam Supply Bypass Valves.
4) Repairs to 23 High Pressure Safety Injection Motor.

The unit is scheduled to return to service on February 23, 1991.

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January 8, 1991 REFUELING INFORMATION RE0 VEST

1. Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No. 2.
2. Scheduled date for next refueling shutdown: March 20, 1989 **
3. Scheduled date for restart following refueling: February 23, 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 be similat 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 program.

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

(a) 217 (b) 1326 Spent fuel pools are common to Units 1 and 2.

8. (a) The present licensed spent fuel pon1 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) 1830 (b) 2880 4 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 1994.

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

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