ML20078H789
| ML20078H789 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 10/31/1994 |
| From: | Cruse C, Piazza F BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9411180107 | |
| Download: ML20078H789 (12) | |
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CnAntes II. CausE Baltimore Gas and Electric Company Plant General Manager Calvert Clifs Nuclear Power Plant Calvert Clifs Nuclear Power Plant 1650 Cal'ert Cliffs Parkway Lusby. Maryland 20657 410 586-2200 Ext. 4tos local 410 26&4101 Baltimore November 15,1994 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 October 1994 Operatine Data Reports 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, l/
y
/
M CilC/FP/bjd Attachments cc:
D. A. Brune, Esquire J. E. Silberg, Esquire L. B. Marsh, NRC D. G. Mcdonald, Jr., NRC T. T. Martin, NRC P. R. Wilson, NRC R. A.11artfield, NRC R. I. McLean, DNR J.11. Walter, PSC P. Lewis, INPO K. Larson, ANI
/
gj 170010 94111e0107 941031 PDR ADOCK 05000317 PDR R
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UNIT 1 OPERATING DATA REPORT co**************************************************************************
Docket No. 50-317 November 15, 1994 Prepared by Frank Piazza Telephone:(410)260-3821 OPERATING STATUS 1.
UNIT NAME Calvert Cliffs Unit 1 2.
REPORTING PERIOD OCTOBER 1994 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
- 10. REASONS FOR RESTRICTIONS N/A Year-Cumulative
- This month to-Date to Date
- 11. HOURS IN REPORTING PERIOD 745 7,296 170,797
- 12. NUMBER OF HOURS REACTOR WAS CRITICAL 745.0 4,447.7 121,416.7
- 13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 3,019.4
- 14. HOURS GENERATOR ON LINE 745.0 4,19%.1 118,772.5
- 15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
- 16. GROSS THERMAL ENERGY GENERATED (MWH) 1,996,786 10,909,035 301,223,854
- 17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 661,084 3,580,858 100,054,404
- 18. NET ELECTRICAL ENERGY GENERATED (MWH) 634,369 3,425,816 95,230,098
- 19. UNIT SERVICE FACTOR 100.0 57.5 69.5
- 20. UNIT AVAILABILITY FACTOR 100.0 57.5 69.5
- 21. UNIT CAPACITY FACTOR (USING MDC NET) 102.0 56.4 67.5
- 22. UNIT CAPACITY FACTOR (USING DER NET) 100.8 55.6 66.0
- 23. UNIT FORCED OUTAGE RATE 0.0 14.6 8.9
- 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:
N/A
UNIT SIIUTDOWNS AND POWER REDUCI'lONS DOCKET NO.
50-317 UNITNAME Calvert Cliffs-UI DATE November 15.1994 COMPLETED BY Frank Piana TELEPHONE f410) 260-3821 REPORT MONTil OctoI>er 1994 MLmIOD OF SIIUTilNG LICENSEE CAUSE & CORRECIlVE DURATION DOWN EVENT SYSTB1 COMPONENT ACIlON TU CODES PREVENT RECURRENCE 4
NO.
DATE TYPEI (IIOURS)
REASON 2 REACTOR 3 REPORT #
CODE There were no significant power reductions for this month.
1 F: Forced 2 Reren:
3 Method:
4 IEEE Standard 805-1984 S: Scheduled A - Equipment Faiic e 1 - Manual B - Maintenance or Test 2 - Manual Scram.
C-Refueling 3 - Automatic Scram.
5 IEEE Standard 803A-1983 D - Regulatory Restriction 4 - Continued
- c. Operator Training & License Examination 5 - Reduced load I'- Administrative 9 - Other G - Operational Error H - Other
AVERAGE DAILY UNIT POWER LEVEL co**********************************************************************
Docket No. 50-317 Calvert Cliffs Unit No. 1 November 15, 1994 Prepared by Frank Piazza Telephone: (410) 260-3821 OCTOBER 1994
- c*********
Average Daily Power Level Average Daily Power Level Day (MWe-Net)
Day (MWe-Net) 1 771 17 857 2
767 18 857 3
840 19 857 4
855 20 858 5
856 21 857 6
858 22 858 7
858 23 859 8
857 24 859 9
857 25 358 10 858 26 860 11 860 27 861 12 859 28 858 13 859 29 856 14 857 30 857 15 857 31 85?
16 858
DOCKET NO. 50 317 CALVERT CLIFFS - UNIT 1 November 15,1994 SUMMA.RY OF OPERATING EXPERIENCE October 1994 The unit operated the entire month at 100% power.
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November 7,1994 NFM 94-325 Page 2 of 4 REFUEL.ING INFORM ATION REOllEST 1.
Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No.1.
2.
Scheduled date fbr next refueling shutdown: March,1996.
3.
Scheduled date for restart following refueling. May,1946.
4.
Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?
None identified at this time.
5.
Scheduled date(s) for submitting proposed licensing action and supporting information.
N/A.
6.
Important licensing considerations associated with the refueling.
Physical modifications required to bring Calvert Cliffs in compliance with the Station tilackout rule will be completed in the 1996 Unit i refueling outage.
7, The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool.
(a) 217 (b) 1394 (Note 2)*
Spent fuel pools are common to Units I 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) 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:
192 Spent Fuel Assemblies in the ISFSt.*
Entry has changed since last reported.
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UNIT 2 OPERATING DATA REPORT co**************************************************************************
Docket No. 50-318 November 15, 1994 Prepared by Frank Piazza Telephone:(410)260-3821 OPERATING STATUS 1.
UNIT NAME Calvert Cliffs Unit 2 2.
REPORTING PERIOD OCTOBER 1994 3.
LICENSED THERMAL POWER (MWT) 2700 4.
NAMEPLATE RATING (GROSS MWe) 911 5.
DESIGN ELECTRICAI 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
- 11. HOURS IN REPORTING PERIOD 745 7,296 154,152
- 12. NUMBER OF HOURS REACTOR WAS CRITICAL 647.9 6,640.0 112,676.8
- 13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1,296.6
- 14. HOURS GENERATOR ON LINE 647.9 6,584.0 111,107.6
- 15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
- 16. GROSS THERMAL ENERGY GENERATED (MWH) 1,735,949 17,056,273 283,921,816
- 17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 577,369 5,656,816 93,812,685
- 18. NET ELECTRICAL ENERGY GENERATED (MWH) 554,718 5,422,824 89,665,958
- 19. UNIT SERVICE FACTOR 87.0 90.2 72.1
- 20. UNIT AVAILABILITY FACTOR 87.0 90.2 72.1
- 21. UNIT CAPACITY FACTOR (USING MDC NET) 88.6 89.0 70.5
- 22. UNIT CAPACITY FACTOR (USING DER NET) 88.1 88.0 68.8
- 23. UNIT FORCED OUTAGE RATE 13.0 7.9 5.8
- 24. SHUTDOWNS SCHEDULED OVER THE NEXT SIX MONTHS (TYPE, DATE AND DURATION):
February 18,1995
- Time change
- 25. IF UNIT IS SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF START-UP:
N/A i
)
UNIT SIIUTl> OWNS ANI) I'OWER REDULTIONS DOCKET NO.
3L_318 UNIT NAME Calvert Cliffs-U2 DATE November 15.1994 COMPLETED BY Frank Piana TELEPHONE (410) 260-3821 ItEl'ORI MONTil October 1994 METilOD OF SillTITING LICENSEE CAUSE & CORRECTIVE DURATION DOWN EVENT SYSTEh!
COMPONENT Acr!ONTO (llOURS)
REASON 2 REACTOR 3 REPORT #
CODE 4 CODES PREVENT RECURRENCE No.
DATE TYPEI 94-013 941027 F
97.1 A
3 Not Available EL IPBU Unit tripped froni 100% reactor power due to loss of ciectricalload at 2353 on 10/27S4. The cause of the trip was due to a Reactor Protection System (RPS) actuation. The Main Generator Differential or Ground relay sensed a ground from the generator A-phase to ground and input a signal to the RPS, initiating the trip actuation signal.
Initialinvestigation revealed the A-phase transition links to the Isophase Bus Duct had failed due to excessive heat caused by a high resistance condition.
A Significant Incident Finding Team (SIFF) was immediately formed and is currcntly on. going.
I 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 - Regulatoty Restriction 4 - Continued E - Operator Training & License Examination 5 - Reduced Load F-Administrative 9 - Other G - Operational Error II - Other
DOCKET NO. 50-318 CALVERT CLIFFS - UNIT 2 November 15,1994 i
SUMMARY
OF OPERATING EXPERIENCE October 1994 i
The unit began the month at 100% reactor power. On 10/26S4 at 2137 power was reduced to %%
to investigate and repair Moisture Separator Reheater (MSR) control valve failures. All four control valves failed shut on the MSRs. The problem was a failure of a temperature controller common to l
all the valves. The temperature controller was repaired and the umt was returned to 100% at 0340 on 10/27S4.
On 10/27S4 at 2353 the reactor tripped on loss of generator load. The trip was initiated by the Reactor Protection System (RP" 'ctuation signal. Initialinvestigation revealed the A phase of the Main Generator Transition Lin
.o the Isophase Bus Ducts had failed due to excessive heat caused by a high resistance condition. An investigation team was immediately formed to determine the root cause of the loss of generator load.
The unit ended the month shutdown.
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AVERAGE DAILY UNIT POWER LEVEL ac****w*****************************************************************
Docket No. 50-318 Calvert Cliffs Unit Nc. 2 November 15,1994 Prepared by Frank Piazza Telephone: (410) 260-3821 OCTOBER 1994 Average Daily Power Level Average Daily Power Level Day (MWe-Net)
Day (MWe-Net) 1 1
852 17 858 2
851 18 857 3
853 19 856 4
857 20 857 5
855 21 858 6
855 22 858 7
857 23 858 8
856 24 856 9
855 25 857 30 855 26 857 11 857 27 853 12 857 28 0
13 857 29 0
14 857 30 0
15 857 31 0
16 858
November 7,1994 NFM 94-325 Page 3 of 4 REFT 1ELING INFORMATION REOUEST 1.
Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No. 2 2.
Scheduled date for next refueling shutdown: February 18,1995.
3.
Scheduled date for restart following refueling: May 22,1995.
4.
Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?
- Yes, Revision of the Design Features Section to adopt improved Standard Technical a.
Specifications format which allows insertion of four lead fuel assemblies.
b.
License amendment to support installation of a Variable LTOP system.
c.
License amendment to extend allowed out of service times for cc,ntrol room IIVAC and emergency diesel generator to support Station illackout modifications.
5.
Scheduled date(s) for submitting proposed licensing action and supporting information.
a.
Submitted 12/08/93 b.
Submitted 05/27/94 c.
Submitted 09/23/94 6.
Important licensing considerations associated with the refueling.
An exemption from 10 CFR 50.46,10 CFR 50.44, and Appendix K to 10 CFR 50 is required to load four lead fuel assemblies. The exemption was submitted November I,1994.*
An excmption from General Design Criteria 2 of Appendix A to 10 CFR Part 50 is required to allow the removal of the missile door to Emergency Diesel Generator No. 21. The exemption is needed to upgrade the capacity of the generator. The exemption was submitted 08/04/94.
7.
The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool.
(a) 217 (b) 1394 (Note 2)*
Spent fuel pools are common to Units I and 2.
8.
(a) The present licens:xl 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 1
Nov.-mber 7,1994 NFM 94-325 Page 4 of 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 2007 NOTE 1:
4710 total licensed site storage capacity.
(1830 pool + 2880 ISFSI)
NOTE 2:
192 Spent Fuel Assemblies in the ISFSI.*
Entry has changed since last reported.
f