ML20086B821

Monthly Operating Repts for Oct 1991 for Calvert Cliffs Nuclear Power Plant,Units 1 & 2

ML20086B821
Person / Time
Site:	Calvert Cliffs
Issue date:	10/31/1991
From:	Denton R, Shanley L BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9111210058
Download: ML20086B821 (11)

Text

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B ALTIMORE I GAS AND

( ELECTRIC CHARLES CENTER e P.O. BOX 1475

• BALTIMORE. MARYLAND 21203-1475 H E DENTON GENEF4At MANAGEH cal. VERT CLIFFS November 13,1991 U. S. Nuclear Regulatory Commission Washington, DC 20555 NITENTION: Document Control Desk

SUBJECT:

Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 October 1991 Operatine Data Reports Gentlemen:

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 Mr. Bruce Mrowca at (410) 260 3989.

M yours,

/o N c u

RED /LBS/bjd Attachments cc: D. A. Brune, Esquire J. E. Silberg, Esquire R. A. Capra, NRC D. G. Mcdonald, Jr., NRC T. T. Martin, NRC A. G. Howe, NRC R. I. McLean, DNR J. II. Walter, PSC R. A. Hartfield, NRC J. Wheelock, INPO o gogs24 *'

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UNIT =1 OPERATING DATA REPORT o**o************************************************************************-

Docket No. 50-317 November 13, 1991 '

Prepared by. Leo Shanley Telephone:(410)260-6744 OPERATING STATUS 1.. UNIT 1NAME Calvert Cliffs Unit 1 2.-REPORTING PERIOD OCTOBER 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 MWo) 860 7.fMAXIMUM 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 ill.. HOURS-IN REPORTING PERIOD 745 7,296 144,493

12. NUMBER 10F HOURS REACTOR WAS-CRITICAL 711.5 5,412.5 101,929.3

13. REACTOR. RESERVE' SHUTDOWN HOURS 0.0 0.0 3,019.4 114._ HOURS GENERATOR ON LINE 701.8 5,374.0 99,663.8

15. UNIT RESERVE SHUTDOWN ~ HOURS 0.0 0.0 0.0

16. GROSS' THERMAL ENERGY GENERATED (MWH) 1,804,452 13,975,042.251,005,756 17.1 GROSS-ELECTRICAL ENERGY GEN'TED(MWH) 590,088 4,606,131- 83,436,898

'18. NET, ELECTRICAL ENERGY. GENERATED (MWH) _564,570 4,411,616 79,301,793-

'19. UNIT SERVICE FACTOR 94.2 73.7 69.0

20. UNITLAVAILABILITY FACTOR 94.2 73.7 69.0.

21. UNIT CAPACITY FACTOR (USING MDC NET) 91.9 73.3 66.5-

-22. UNIT CAPACITY FACTOR-(USING DER NET) 89.7 71.6 65.0

23. UNIT FORCED OUTAGE RATE 5.8 11.4 9.5

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

Refuel / Test,: March 6, 1992_for;77 days 225.[IF SHUTDOWN AT-END OF1 REPORT PERIOD, ESTIMATED'DATE OF START-UP:

N/A

UNIT SIIUTDOWNS AND POWER REDUCTIONS -

DOCKET NO. 50-317 UNITNAME Cahrrt ClifTwU1 DATE November 13,1991' '

COMPLETED BY Leo Shanley TELEPHONE (410126fL6744 REPORT MONTII October 1991 METilOD OF SiltTITING LICENSEE CAUSE & CORRECHVE DURATION DOWN EVENT SYSTEM COMPONENT ACTION TO NO. DAlli TYPEI (IIOURS) REASON 2 REACTOR 3 REPORT # CODE4 CODES PRLNENT RECURRENCE 91-08 911001 F 43.2 A 3 91-003 CH XXXXXX 1) Reactor Trip due to low Steam Generator (SG) water level

2) A loose fuse (due to a bent fuse clip) in the power supply to 12 Feed Regulating Valve dP controller and 12 SG Feed Pump turbine speed controller caused a rapid . [

reduction in ft.ed flow, resulting in low '

SG levels. i

3) Surveyed other fuse holders for similar problems. Training win be amended to include instruction on proper fuse installation and  ;

remc val  :

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1 F: Forced 2 Reason: 3 Method: 4 Exhibit F- Instructions S: Scheduled A-Equipment Failure 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram- Entry Sheets for License C-Refueling 3-Automatic Scrant Event Report (LER) File D-Regulatory Restriction 4 Continued (NUREG-0161)  ;

E-Operator Training & License Examination 5-Reduced Lead ,

F-Administrative 9-Other 5 Exhibit H - Same Source G-Operational Error e H-Other

AVERAGE DAILY UNIT POWER LEVEL Docket No. 50-317 Calvert Cliffs Unit No. 1 November 13, 1991 Completed by Leo Shanley Telephone: (410) 260-6744 OCTOBER 1991 Average Daily Power Level Average Daily Power Level Day (MWo-Net) Day (irde-Net) 1 328 17 854 2 0 18 853 3 97 19 849 4 373 20 851 5 756 21 851 6 781 22 853 7 838 23 853 8 839 24 853 9 818 25 852 10 842 26 853 11 832 27 852 12 802 28 853 13 849 29 854 14 849 30 853 15 849 31 852 16 851

DOCKET 150-317 CALVERT CLIFFS. UNIT 1 November 13,1991 -

SUMMARY

OF OPERATING EXPERIENCE October 1991 The unit began the month at 93% power (760 MWe) awaiting repairs to 13A Waterbox Inlet MOV.

An automatic reactor trip occurred at IM8 on October 1 due to low Steam Generator (SG) water levels.12 Feed Regulating Vahe differential pressure controller and 12 SG Feed Pump turbine speed controller lost power resulting in a rapid reduction in feed flow. The reactor was taken critical at 2020 on October 2 and the generator was paralleled to the grid at 0600 on October 3. Power was held at 30% (150 MWe) until 1030 on October 4 to correct SG Chemistry and troubleshoot problems with #2 and #4 Main Turbine Control Valves.

The unit reached 93% (740 MWe) at 2145 on October 4. Power was held there until 1715 on ,

October 6 to repair leaking tubes in 13A Main Condenser.100% power (830 MWe) was achieved at 1840.

Power was reduced to %% from 2130 to 2358 on October 8 for Nuclear Instrument (NI) calibrations.

Power was reduced to 95% (805 MWe) from 0640 on October 9 to 0200 on October 10 due to oscillations in Channel D Delta-T Power indication.

Power was reduced to 9&c (810 MWe) from 2147 to 2350 on October 10 for NI calibrations.

l-Power was reduced to 93% (775 MWe) from 1945 on October 11 to 2000 on October 12 due to a tube leak in 11B Main Condenser.

Power was reduced to 97% (825 MWe) at 2200 on October 31 for Moderator Temperature

CoefGeient Testing.

i The unit ended the month at 97% power (825 MWe).

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November 7, 1991 REFUEL.lHG llEQEMATION REQt)fSl

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 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.

December 15, 1991. *

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 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 Pool assuming the present licensed capacity and maintaining space for one full core of f-load.

March 1992.

• Entry has changed since it was last reported.

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UNIT.2 OPERATING DATA REPORT coce************************************************************************  ;

Docket No. 50-318 November 13, 1991 Prepared by. Leo Shanley Telephone:(410)260-6744 OPERATING STATUS

1. UNIT NAME Calvert Cliffs Unit 2

2. REPORTING PERIOD OCTOBER 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 l

8. CHANGE-IN CAPACITY RATINGS none H

9. POWER-LEVEL TO WHICH RESTRICTED n/a

10. REASONS-FOR RESTRICTIONS n/a l

Cumulative This month Year-to-Date to Date )

11. HOURS'IN REPORTING PERIOD 745 7,296 127,848

12. NUMBER OF HOURS REACTOR WAS CRITICAL 438.0 3,736.5 91,173.8 13.-REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1,296.6 L 14. HOURS GENERATOR-ON LINE 436.8 3,610.7 89,839.6 L 15.; UNIT RESERVE-SHUTDOWN' HOURS ..

0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED-(MWH) 1,151,705 9,313',778 227,703,196

17. GROSS ELECTRICAL-ENERGY GEN'TED(MWH)- -379,947 2,994,374 75,279,006 j

18. NET ELECTRICAL ENERGY GENERATED (MWH) 363,698 2,862,627 71,905,198 i l

19. UNIT SERVICE FACTOR 58.6 4 9.5~ 70.3 l H20. UNIT AVAILABILITY FACTOR 58.6. 49.5 70.3

21. UNIT. CAPACITY FACTOR (USING MDC NET) 59.2 47.6 68.2

22. UNIT CAPACITY FACTOR (USING DER NET) '57.8 46.4. 66.6 r 23. UNIT FORCED OUTAGE RATE 0.0 11.6 5.6 l 124.JSHUTDOWNS; SCHEDULED OVER THE NEXT-SIX MONTHS:(TYPE, DATE~AND DURATION):-

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

November 22, 1991 I

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UNIT SIIUTHOWNS AND POWER REDUCTIONS DOCKETNO. 50-318 UNITNAME Calvert Cliffs-U2 DATE November 13.1991 COMPLETED BY Leo Shantev TELEPHONE (410)260 4744 REPORTMONTII October 1991 MEHIOD OF S'tIUTHNG UCENSEE CAUSE & CORRECEVE DURATION DOWN EVENT SYSTEM COMPONENT ACHONTO NO. DATE TYPEI (llOURS) REASON 2 REACIlOR3 REPORT # CODE 4 CODE 5 PRLTrETRECURRENCE 91-13 911019 S 308.2 B 1 N/A Unit shutdown for scheduled testing and maintenance.

t 1 F: Forced 2 Reason: 3 Method: 4 Exhibit F-Instructions S: Scheduled A-Equipment Failure 1-Manual for Preparation of Data B-Maintenance orTest 2-Manual Scram. Entry Sheets for Ucense C-Refueling 3-Automatic Scram. Event Report y_ER) File D-Regulatory Restriction 4-Continued (NUREG-0161)

E-Operator Training & Ucense Examination ' 5-Reduced Load F-Administrative 9-Other 5 Exhibit H -Same Source G-Operational Error H-Other

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

Docket No. 50-318 Calvert Cliffs Unit No. 2 Novereber 13, 1991 Completed by Ieo Shanley Telephone: (410) 260-6744 OCTOBER 1991 Average Daily Power Level Average Daily Power Level Day (MWe-Net) Day (MWe-Net) 1 838 17 851 2 800 18 840 3 839 19 47 4 840 20 0 5 840 21 0 6 841 22 0 7 844 23 0 8 843 24 0 9 844 25 0 10 843 26 0 11 842 27 0 12 844 28 0 13 823 29 0 14 845 30 0 15 845 31 0 16 847

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DOCKET #50-318 CALVERT CLIFIS - UNIT 2 November 13,1991

SUMMARY

OF OPERATING EXPERIENCE October 1991 The unit began the month at 100% power (835 MWe).

Power was reduced to 80% (645 MWe) from 0840 to 1400 on October 2 due to an oil leak on a Low Pressure Turbine Intercept Valve operator.

Power was reduced to 90% (740 MWe) from 16(X) to 2130 on October 13 due to a loss of the plant computer.

Power reduction for the scheduled Fall Surveillance Outage was commenced at 2115 on October 18.

The generator was removed from the grid at (M49 on October 19 and the reactor was shutdown at 0600.

The unit ended the month in cold shutdown (Mrxic 5).

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

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November 7, 1991 BiftJEllNR___lMDBMATION RQUESI 1, Name of facility: Calvert Cliffs Nuclear Power Plant. Unit No. 2,

2. Scheduled date for next refueling shutdown: March 5, 1993.

3. . Scheduled date for restart following refueling: May 17, 1993.

4. . Will refueling or resumption of operation thereaf ter ' require a Technical -

Specification change or other license amendment?

.Not identified at this time.

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

November 17, 1992.

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 capacity, and-(b) the sizeLof any increase in licensed storage capacity that has been

requested: or is planned, in number of fuel assemblies, i

-(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.

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