ML19332C517

Monthly Operating Repts for Oct 1989 for Calvert Cliffs Nuclear Power Plant Units 1 & 2

ML19332C517
Person / Time
Site:	Calvert Cliffs
Issue date:	10/31/1989
From:	Behnke C, Russell L BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8911280216
Download: ML19332C517 (11)

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E BALTIMORE GASAND ELECTRIC l

CHARLES CENTER P.O. BOX 1475 BALTIMORE, MARYLAND 21203 LEON B. RUSSELL L

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.c.atvt.t etm wuctsan cowtn etant conmuer November 13. 1989 l

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

Calvert Cliffs Nuclear Power Plant Unit Nos. 1 & 2; Dockets 50 317 and 50 318 M gr 1989 Oncratine Data Reports Centlemen:

The subject report.s are being sent to you as required by Technical Specification 6.9.1.6.

I Should you have any further questions regarding this matter, please contact Lloyd Wenger at (301)260 4867.

Very truly yours,

'LBR/CB/peu

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D. A. Brune, Esquire J. E. Silberg, Esquire R. A. Capra, NRC S. A.-McNeil, NRC W. T.. Russell, NRC D. F. Limroth/.1. A. Colla, Jr., NRC I

T. Magette, DNR.

W.11. Lovelace, NRC R. Cibbard, DOE J. Wheelock, INPO J. E. Baum, CE C

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l UNIT 1 OPERATING DATA REPORT COG**w**be***6*****s********************************************************

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Docket No. 50-317 November 13, 1989 Prepared by Carl Behnke Telephone:(301)260-4871 OPERATING STATUS

1. UNIT NAME Calvert Cliffs Unit 1

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2. REPORTING PERIOD.

OCTOBER 1989

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. MAXIMGM 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 monthYear-to-Date to Date

11. HOURS IN REPORTING PERIOD 745 7,296 126,973

12. NUMBER OF HOURS REACTOR WAS CRITICAL 0.0 1,806.6 94,592.3

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 3,019.4

14. HOURS GENERATOR ON LINE 0.0 1,729.1 92,448.6

15. UNIT RESERVE SHUTDONN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 0 4,227,084 232,691,250

17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 0 1,410,290 77,419,117

18. NET ELECTRICAL ENERGY GENERATED (MWH) 0 1,345,618 73,545,810

'19. UNIT SERVICE FACTOR 0.0 23.7 72.8 i

20. UNIT AVAILABILITY FACTOR 0.0 23.7 72.8

21. UNIT CAPACITY FACTOR (USING MDC NET) 0.0 22.4 70.2

22. UNIT CAPACITY FACTOR (USING DER NET) 0.0 21.8 60.5

23. UNIT FORCED OUTAGE RATE 0.0 2.9 9.5

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

N/A

• Time change

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

December 29, 1989 L

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCRET NO. 50-317 UNIT NAME Calvert Cliffs-U1 DATE November 13. 1989 COMPLETED BY Carl Behnke REPORT MONTH October 1989 TELEPHONE (301)260-4871 i

METHOD OF DURATION' SHUTTING LICENSEE SYSTEM COMPONENT CAUSE & CORRECTIVE I

2 NO.

DATE TYPE (HOURS)

REASON DOW EVENT ACTION TO 4

S REACTOR REPORT #

CODE CODE PREVENT RECURRENCE 89-13 891001 S

745 B

N/A N/A CA HEATER Continued shutdown. Completing investigation of leakage from Unit 2 Pressurizer Heater Sleeves and an Instrument Nozzle.

1. Axial through wall. cracks were identified in Unit 2 sleeves and a nozzle.

2.. Cracks were2 characterized as Primary Water Stress Corrosion Cracks initiated by high stress imposed in the material during fabrication of the pressurizer.

3. Submitted and presented an analy M.s to NRC which states thar <he material defects in Unit _ may be applicable to Unit 1, but Unit 1 can be safely operated.

1 2

0 F: Forced Reason:

Method:

Exhibit G-Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scras.

Entry Sheets for License C-Refueling 3-Automatic Scram.

Event Report (LER) File D-Regulatory Restriction 4-Other (Explain)

(NUREG-Ol61)

E-Operator Training & License Examination F-Administrative Edit it I - Ss.ne Source G-Operational Error (Explain)

H-Other (Explain)

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AVERAGE DAILY UNIT POWER LEVEL

• • • • • • • • • • v*******************

i Docket No. 50-337 Calvert Cliffs Unit No. 1 November 13, 1939 Completed by Carl Behnke Telephone: (301) 260-4871 OOTOBER 1989

• • • • • ce********

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

Day (MWe-Net) 1 0

17 0

2 0

18 0

3 0

19 0

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4 0

20 0

5 0

21 0

6 0

22 0

7 0

23 0

8 0

24 0

9 0

2S O

10 0

26 0

11 0

27 0

12 0

28 0

13 t

29 0

14 0

30 0

15 0

31 0

16 0

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DOCKET # $0-317 i

CALVERT CLIFFS - UNIT.1

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November 13, 1989 f

-StMMARY OF OPERATING EXPERIENCE October 1989

'I Unit 1'bagan the month in a maintenance shutdown pending NRC agreement with the analysis presented to NRC Staff on September 25.

This analysis stated that the

-l material defects in Unit 2 were applicable to Unit 1, but Unit I could be safely operated.

I Numerous maintenance activities, including pressurizer close out, are currently in progress.

The' unit is expected te begin heat-up in mid December for a

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start up on December 29, 1989.

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November 6, 1989 r

REFUELING INFORMATION REQUEST l

1.

Name of facility:

Calvert Cliffs Nuclear Power Plant, Unit No.1.

2.

Scheduled date for next rcfueling shutdown:

March 15, 1991 3.

Scheduled date for restart follnwing refueling: May 26, 1991 4.

Will refueling or resumption of operation thereafter require a Technical Specification change or other licenst anendment?

Resumption of operation after refueling will require changes to Technical Specifications. The changes will be such as to allow operation of the plant with a higher enriched (4.3%) reload batch and reshuffled core for Unit l's next 24 month cycle, 5.

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

November 1,.1990

( reload submittal )

6.

Important licensing considerations associated with the refueling.

1 Reload fuel will be similar to reload fuel inserted into the previous cycle except for the higher enrichment ( 4.3% ).

7.

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

(a) 217 (b) 1543 Spent fuel pon1s are common to Units 1 and 2.

8.

(a) The present licensed spent fuel pool storage capacity, and (b) the size l

of any increase in licensed storage capacity that has been requested or is l

planned, in number of fuel assemblics.

(a) 1830 (b) 2880 9.

The projected date of the last refueling that can be discharged to the Spent Feel Pool assuming the present licensed o.pacity and maintaining j

space for one full core off-load.

Spring 1993

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UNIT 2 OPERATING DATA REPORT coco ************************************************************************

Docket No. 50-318 November 13, 1989 Prepared by Carl Behnke Telephone: (301) 260-4871 OPERATING STATUS b

1. UNIT NAME Calvert Cliffs Unit 2

2. REPORTING PERIOD OCTOBER 1989

3. LICENSED THERMAL POWER (MWT) 2700

4. NAMEPLATE RATING (GROSS MWe) 918 l

5. DESIGN ELECTRICAL RATING (HET 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 i

10. REASONS FOR RESTRICTIONS n/a Cmaulative

• This monthYear-to-Date to Date

11. HOURS IN REPORTING PERIOD 745 7,296 110,328

.12. NUMBER OF HOURS REACTOR WAS CRITICAL 0.0 1,766.4 87,437.3

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1,296.6

14. HOURS GENERATOR ON LINE 0.0 1,732.1 86,228.9

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH)'

O 4,530,744 218,389,418

17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 0 1,512,000 72,294,632

18. NET ELECTRICAL ENERGY GENERATED (MWH) 0 1,448,457 69,042,571

19. UNIT SERVICE FACTOR 0.0 23.7 78.2 20.-UNIT AVAILABILITY FACTOR 0.0 23.7 78.2

21. UNIT CAPACITY FACTOR (USING MDC NET) 0.0 24.1 75.9

22. UNIT CAPACITY FACTOR (USING DER NET) 0.0 23.5 74.1

23. UNIT FORCED OUTAGE RATE 0.0 11.2 5.3-

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

N/A

• Time change

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

Spring 1990 T

UNIT SHUTDOWNS AND POW 5R REDUCTIONS DOCKET NO. 50-318 UNIT NAME Calvert Cliffs-U2 DATE November 13. 1989 COMPLETED BY Carl Behnke REPORT MONTH October 1989 TELEPHONE (3011260-4871 METHOD OF DURATION SHUTTING LICENSEE SYSTEM COMPONENT CAUSE & CORRECTIVE I

2 NO.

DATE TYPE (HOURS)

REASON DOWN EVENT ACTION TO 3

b S

REACTOR REPORT #

CODE CODE PREVENT RECURRENCE 89-11 891001 S

745 C

N/A N/A Completing investigation of leakage from Unit 2 Pressurizer Heater Sleeves and an Instrument Nozzle.89-007 CA FEATER

1. Axial through wall cracks were identified in Unit 2 sleeves and a nozzle.

2. Cracks were characterized as Primary Water Stress Corrosion Cracks initiated by high stress imposed in the material during fabrication of the pressurizer.

3. Replacement of 120 heater sleeves is in progress.

1 2

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F:

Forced Reasor.:

Method:

Exhibit G-Instructions 5:

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 D-Regulatory Restriction 4-Other (Explain)

(NUREG-0161)

E-Operator Training & License Exac.ination 5

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

H-Other (Explain)

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• e AVERAGE DAILY UNIT POWER LEVEL Docket No. 50-318 Calvert Cliffs Unit No. 2 November 13, 1989 Completed by Carl Behnke Telephone: (301) 260-4871 OCTOBER 1989

• • • • • • • • s******

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

Day (MWe-Net) 1 0

1*/

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

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-DOCKET f 50-318

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CALVEKT CLIFFS - UNIT 2

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November 13, 1989-t i

SUMMARY

OF OPERATING EXPERIENCE I.

October 1982

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- Unit 2 was shutdown for the month for the 8th cycle scheduled refueling on age.

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c i-I 13us pressurizer investigation identified cracks or crack indications in 18 of 28 I-pressurizer heater sleeves that were initially designated as leaking. All l

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cracks were axial and confined to the top 2 inches of the-sleeves. Three axial i

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cracks were identified in the leaking pressurizer instrument nozzle at the insido of pressurizer.

The cracks were characterized as Primacy Water Stress Corrosion Cracks since the material microstructure and fabrication history i

suggests a susceptibility to this form of attack.

All 120 pressurizer heater sleeves are currently being replaced.

The Unit is scheduled to return to service in the Spring of 1990.

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November 6, 1989 l

REFUELING INFORMATION REQUEST 1.

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

2.

Scheduled date for next refueling shutdown: March 20, 1989 **

kcheduled date for restart following refueling: Spring 1990 3.

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 l

Specifications. The changes will be such as to allow operation of the plant with a reload batch and reshuffled core at a higher enrichment.

5.

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

February 9, 1989

( reload submittal )

April 21, 1989

( updated reload submittal )

6.

Important licensing considerations associated with the refueling.

Reload fuel will be 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 program.

7.

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

(a) 0 (b) 1543 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) 1830 (b) 2880 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, spring 1993

• entry has changed since last reported Unit currently in refueling shut down

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