ML20045H639
| ML20045H639 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 06/30/1993 |
| From: | Cruse C, Piazza F BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9307210075 | |
| Download: ML20045H639 (11) | |
Text
,-
BALTIMORE z,.
GAS AND ELECTRIC 1
CALVERT CLIFFS NUCLEAR POWER PLANT 1650 CALVERT CLIFFS PARKWAY
- LUSBY, MARYLAND 20657-4702 CHARLES H. CRUSE PLANT GENERAL MANAGER CALVE RT CLIFFS July 13,1993 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 June 1993 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,
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D. A. Brune, Esquire J. E. Silberg, Esquire R. A. Capra, NRC D. G. Mcdonald, Jr., NRC T. T. Martin, NRC P. R. Wilson, NRC R. I. McIxan, DNR J. H. Walter, PSC R. A. Hartfield, NRC P. Lewis, INPO K.12rson, ANI W
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UNIT 1 OPERATING DATA REPORT
- a*************************************************************
Docket No. 50-317 July.13-1993 Prepared by Frank Piazza Telephone: (410)260-3821 OPERATING STATUS
- 1. UNIT NAME Calvert Cliffs Unit 1 2.
REPORTING PERIOD JUNE 1993 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 720 4,3431 159,084-
- 12. NUMBER OF HOURS REACTOR WAS CRITICAL 579.0 4,202.0
_112,552.0
- 13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0
-3,019.4
- 14. HOURS GENERATOR ON LINE 559.5 4,182.5 110,161.4
- 15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0-0.0
- 16. GROSS THERMAL ENERGY GENERATED (MWH) 1,479,117 11,217,991.278,496,842
- 17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 488,044 3,770,439 92,597,973
- 18. NET ELECTRICAL ENERGY GENERATED (MWH) 464,053 3,617,633 88,087,019
- 19. UNIT SERVICE FACTOR 77.7 96.3 69.2
- 20. UNIT AVAILABILITY FACTOR 77.7 96.3 69.2
.21. UNIT CAPACITY FACTOR (USING MDC NET) 78.1 101.0
.67.1
- 22. UNIT CAPACITY FACTOR (USING DER NET) 76.3 98.6 65.5
- 23. UNIT FORCED OUTAGE RATE 22.3 3.7 9.0
- 24. SHUTDOWNS SCHEDULED OVER THE NEXT SIX-MONTHS (TYPE, DATE AND DURATION):
N/A
- 25. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE-OF START-UP:
N/A
UNIT SillTfDOWNS AND POWER REDUCTIONS DOCKET NO.
50-317 ~
UNITNAME Cahrrt Cliffs-U1 1
DATE July 13.1993 COMPLETED BY Frank Pia 77a TELEPHONE f410) 260-3321 REPORT MONTil JUNE 1993 i
MEnIOD OF SilUTIlNG LICENSEE CAUSE & CORRECllVE D U R K il O N DOWN EVENT SYSTEM COMPONENT ACTION TO (llOURS)
REASON 2 REACTOR 3 REPORT #
CODE 4 CODES PREVENT RECURRENCE NO.
DNITi TYlEl 93-01 9 m610 F
2&3 A
2 317S 3003 FK 94 Unit manually tripped because of anticipated loss of offsite power. A flashover relay located in the switchyard actuated due to suspected induced vibrations. The loss of one of two 500 KV feeders resulted in a partial loss of offsite power with concurrent automatic trip of Unit 2. Unit 2 was in Mode 3 in a shutdown condition during the event.
l Hardware and training modifications are being considered as corrective measures.
93-02 930611 F
23.0 G
3 317N3001 JB HX Unit automatically tripped from 16"r reactor power due to a low pressure feedwater heater high level trip signal. The signal was generated because the FWH high level dump valve handswitch was left closed dt' ring startup. Startup procedures changes have beet, made to include opening the FWH high level dump vahr.
93-03 930624 F
109.2 B
1 N/A BK FCU Maintenance outage to clean containment air coolers. Air cooler air flow decreased due to a buildup of boric acid powder. The powder was restricting air flow through the coolers.The air coolers were cleaned and the unit was returned to service.
1 F: Forced 2 Reason:
3 Method:
. S: Scheduled A-Equipment Failure 1 - Manual B - Maintenanec or Test 2 - Manual Scram.
C - Refueling 3 - Automatic Scram.
5 IEEE Standard 803A-1983 D - Regulatory Restriction 4 - Continued E - Operator Training & License Examination 5 - Reduced Load F-Administrative 9 - Other G - Operational Error II-Other
AVERAGE DAILY UNIT POWER LEVEL
.oc**********************************************************************
Docket No. 50-317 Calvert Cliffs Unit No. 1 July 13, 1993 Prepared by Frank Piazza Telephone: (410) 260-3821 JUNE 1993 Average Daily Power Level Average Daily Power Level Day (MWe-Net)
Day (MWe-Net) 1 859 17 857 2
d56 18 854 3
855 19 854 4
854 20 853 5
853 21 852 6
846 22 849 7
848 23 834 8
846 24 0
9 846 25 0
10 279 26 0
11 0
27 0
12 289 28 142 13 850 29 841 14 852 30 839 15 858 16 858
}
DOCKET NO. 50-317 CALVERT CLIFFS - UNIT 1 July 13,1993
SUMMARY
OF OPERATING EXPERIENCE JUNE 1993 -
The unit began the month at 100% (850 MWe).
The unit was manually tripped at 0828 on June 10,1993 because of an anticipated loss of offsite power. Suspected induced vibrations of a switchyard flashover relay actuated opening the breakers which isolated the 500 KV bus and resulted in a partial loss of offsite power. Corrective actions include training and hardware improvements.
On June 11,1993 at 1259 during a plant startup, the Reactor was automatically tripped due to a Low Pressure Feedwater heater Iligh Level trip signal. Cause of the trip was due to FWH high level dump valve handswitch being left in the closed position during startup. Proper valve lineup was restored and the unit was paralleled to the grid at 1159 on June 12,1993.
The unit was taken off the grid for a maintenance outage at 0211 on June 24,1993. This maintenance outage was initiated to cler.n the Containment Air Coolers. Air flow past the coolers was reduced due to a buildup of boric acid powder restricting cooling air flow which impacted the coolers ability to maintain cooling air ilow in containment. Following cleaning of the containment coolers the unit was paralleled to the grid at 1521 on June 28,1993 and ended the month at 100% (840 MWe).
P
4 June 30, 1993 REFUELING INFORMATION REQUESI 1.
Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No.1.
2.
Scheduled date for next refueling shutdown:
February 4, 1994.
3.
Scheduled date for restart following refueling:
None identified at this time.
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.
December 1993 for UIC12.
6.
Important licensing considerations associated with the refueling.
i 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) 1498.*
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) 4710. (NOTE 1)
(b)
O.
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 lead.
March 2014
- Entry has changed since last reported.
NOTE 1: 4710 total licensed site storage capacity.
(1830 pool + 2880 Ispsi)
i C00*************************************************************************
l
'UMIT 2 OPERATING DATA REPORT o*o*************************************************************************
Docket No. 50-318 July 13, 1993 Prepared by Frank Piazza Telephone: (410)260-3821 i
OPERATING STATUS
- 1. UNIT NAME Calvert Cliffs Unit 2 2.
REPORTING PERIOD JUNE 1993 3.
LICENSED THERMAL POWER (MWT) 2700 4.
NAMEPLATE RATING (GROSS MWe) 911 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 720 4,343 142,439
- 12. NUMBER OF HOURS REACTOR WAS CRITICAL 451.8 1,655.4 101,619.8
- 13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1,296.6
- 14. HOURS GENERATOR ON LINE 368.5 1,570.2 100,152.0
- 15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
- 16. GROS 9 THERMAL ENERGY GENERATED (MWH) 800,569 4,022,693 255,167,485
- 17. GROSS ELECTRICAL ENERGY GEN'TED(MWH) 257,901 1,330,548 84,289,326
- 18. NET ELECTRICAL ENERGY GENERATED (MWH) 236,239 1,264,911 80,533,340
- 19. UNIT SERVICE FACTOR 51.2 36.2 70.3
- 20. UNIT AVAILABILITY FACTOR 51.2 36.2 70.3
- 21. UNIT' CAPACITY FACTOR (USING MDC NET) 39.8 35.3 68.5
- 22. UNIT CAPACITY FACTOR (USING DER NET) 38.8 34.5 66.9
- 23. UNIT FORCED OUTAGE RATE 11.4 2.9 5.9
- 24. SHUTDOWNS SCHEDULED OVER THE NEXT SIX MONTHS (TYPE, DATE AND DURATION):
N/A
- 25. IF UNIT IS SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF START-UP:
N/A 1
UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO.
SiL313 UNIT NAME Calvert Cliffs-U2 DATE July 13.1993 COMPLETED BY Frank Piarra TELEPHONE (410) 260-M21 REPORT MONTIl June 1993 MLTIIOD OF SillTITING LICENSEE CAUSE & CORRECllVE DURATION DOWN EVENT SYST11M COMPONENT ACTION 1D (IIOURS)
REASON 2 REACIDR3 REPORT #
CODE 4 CODES PREVENT RECURRENCE NO.
DAT11 TYPEI 93-01 930220 S
299.9 C
1 N/A N/A N/A Unit shutdown for planned Refueling Outage.
93-02 930613 S
43 B
9 N/A JJ 12 Unit removed from grid for Main Turbine overspeed trip test.
t 93-03 930625 F
17 3 B
9 N/A AB FT Maintenance outage to repair Icak on the differential pressure transmitter and to install balance weight on the main turbine to reduce vibrations.
93-04 930625 F
30.0 H
3 31& 93003 JB LC During the maintenance outage and while disconnected from tim grid the reactor tripped at 2.7% reactor power on 21 Steam Generator low icvel duc to feedwater control oscillations. The startup was initiated successfully using manual control of the feed water control system.
l i
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1 F: Forced 2 Reason:
3 Method:
S: Schedule <
A-Equipment Failure 1 - Manual B - Maintenance or Test 2 - Manual Scram.
C-Refueling 3 - Automatic Scram.
5 IEEE Standard 803A-1983 D - Regulatory Restriction 4 - Continued i
E - Operator Training & License Examination 5 - Reduced Load F-Administrative 9 - Other G - Operational Error H - Other
AVERAGE DAILY UNIT POWER LEVEL co**********************************************************************
j Docket No. 50-318
)
Calvert Cliffs Unit No. 2 July 13, 1993 Prepared by Frank Piazza Telephone: (410) 260-3821 JUNE 1993 Average Daily Power Level Average Daily Power Level Day (MWe-Net)
Day (MWe-Net) 1 0
17 695 2
0 18 730 3
0 19 743 l
4 0
20 819 5
0 21 825 g
6 0
22 844 7
0 23 844 8
0 24 836 9
0 25 2
10 0
26 0
11 0
27 377 i
.J 12 0
28 822 l
13 31 29 842 14 157 30 842 15 233 16 510
= _ _ - _ _ _ _ _ - - - _ _ --__
. 3 I
9 DOCKET NO. 50-318 CALVERT CLIFFS - UNIT 2 July 13,1993
SUMMARY
OF OPERATING EXPERIENCE JUNE 1993 The unit began the month shutdown in continuation of the planned refueling outage.
On June 10,1993, during the refueling outage, the unit experienced a trip due to low coolant flow.
The reason for the trip was due to the actuation of a flashover relay in the switchyard isolating the 500 KV bus. The loss of the bus resulted in the loss of the reactor coolant pumps and subsequent reactor coolant flow. The switchyard was returned to its pre-event condition ending the event.
Other corrective actions such as training and procedure changes are being investigated.
The unit was paralleled to the grid on June 13.1993 at 1151 ending the refueling outage.
A maintenance outage started on June 25,1993 to repair a leak on a reactor cooling system -
differential pressure transmitter and to install a balance weight to reduce main turbine vibration.'
During the outage the reactor tripped at 2.7% reactor power due to 21 Steam Generator low level indication due to feedwater flow oscillations (LER # 318/93003). The operators took manual control of the feedwater control but were not able to control the level before the trip. The startup was initiated successfully on June 26.1993 using manual control of the feedwater control system.
The unit ended the month at 100% power, i
l 2
y v
w
I June 30, 1993 I
REFUELING INFORMATION REQUEST 1.
Name of facility: Calvert Cliffs Nuclear Power Plant, Unit No. 2 2.
Scheduled date for next refueling shutdown:
March 3, 1995.*
3.
Scheduled date for restart following refueling: May 17, 1995.*
4.
Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?
Unknown.*
5.
Scheduled date(s) for submitting proposed licensing action and supporting information.
Unknown.*
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) 1498.*
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) 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 2016.
l
- Entry has changed since last report.
J NOTE 1: 4710 total licensed site storage capacity.
(1830 pool + 2880 ISFSI)