ML20100Q276

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Monthly Operating Repts for Nov 1984
ML20100Q276
Person / Time
Site: Dresden  
Issue date: 11/30/1984
From: Schroeder B, Scott D
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
84-1346, NUDOCS 8412170061
Download: ML20100Q276 (18)
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{{#Wiki_filter:[a OPERATING DATA REPORT DOCKET NO. 050-237 DATE Deceinber 4, 1984 COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 OPERATING STATUS NOTES 1. Unit Name: Dresden II 2. Reporting Period: uny mhor_ 19g4 3 Licensed Thermal Power (NWt): 2,527 4. Nameplate Rating (Gross NWe): 828 5. Design Electrical Rating (Net MWe): 794 6. Maximum Dependable Capacity (Gross MWe): 812 7 Maximum Dependable Capacity (Net MWe): 772 8. If Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons: N/A 9 Power Level to Which Restricted, if Any (Net MWe): n/A 10. Reasons For Restrictions, if Any: N/A This Month Yr-to-Date Curcula t!ve. II. Hours in Reporting Period 720 8040 127.560 12. Number of Hours Reactor Was Critical 0 6511.4 98.735.9 13. Reactor Reserve Shutdown Hours 0 0 0

14. ' Hours Generator On-Line o

A ant A o?_1no.7 15. Unit Reserve Shutdown Hours o n n 16. Gross Thermal Energy Generated (MWH) 0 14,643,422 191,338,058 17. Gross Electrical Energy Generated (MWH) 0 4,701,587 61,203,786 18. Net Electrical Energy Generated (MWH) -5239 4.463.118 57.581.384 19 Unit Service Factor 0 79.65 76.29 20. Unit Availability Factor 0 79.65 76.29 21. Unit Capacity Factor (Using MDC Net) 0 71.91 58.75 22. Unit Capacity Factor (Using DER Net) 0 69.91 57.12 23. Unit Forced Outage Rate 0 4.33 11.22 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): N/A 25. If Shut Down At; End Of Report Period, Estimated Date of Startup: Mid-January. 1985 %k k 0 R gMili

D ',' i . OPERATING DATA REPORT DOCKET NO. 050-249 \\ ' DATE December 4. 1984 1 COMPLETED By B. A. Schroeder m TELEPHONE inie) 927_7979 OPERATING STATUS' NOTES 1' Unit Name: Dresden III '2. / Reporting-Period: Nov==Ner. 1984 3. Licensed Thermal Power (MWt): 2.527 4. Nameplate Rating (Gross MWe): R7A 5. Design Electrical Rating (Net MWe): 794 6. Maximum Dependable capacity (Gross MWe): 812 ',-7. Maximum Dependable Capactty (Net MWe):( 773 8. If Changes occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons: N/A 9 Power Level to Which Restricted, if Any (Net MWe): N/A 10. Reasons For Restrictions, if Any: N/A-This Month Yr-to-Date Cumul.ative. 11. Hours in Reporting Period 720 a.040 117.145 12. Number of Hours Reactor Was Critical mn _ s 2.tAA.9 as.9a9.9 13 Reactor. Reserve Shutdown Hours a 0 0 14. Hours Generator On-Line 684.2 2567.1 82.428.1 15 Unit Reserve Shutdown Hours 0 0 o 16. Gross Thermal Energy Generated (MWH) 1.593.012 5.324.722 165.285.820 17 Gross Electrical Energy Generated (MWH) 517.812 1.658.821 53,611,740 18. Net Electrical Energy Generated (MWH) AoA_ nit

1. s so.406 50.730.990 19 Unit Service Factor 95.63 31.93 70.36 i

, 20. Unit AvallabliIty Factor 95.03 31.93 70.36 21. Unit Capacity Factor (Using MDC Net) an ot 24.95 56.08

22.. Unit Capactty Factor (UsIng DER Net) na_ss 24.29 54.60 23..

Unit Forced Outage Rate 4.9s 17.60 12.83 24. Shutdowns Scheduled Over Next 6 Months (Type Date, and Duration of Each):- -N/A

25. Lif Shut Down A't End of Report Period, Estimated Date of Startup:

N/A ~ t 1

DOCKET Noe 050-237 UNIT NAME Dresden II UNIT SHUTDOWNS AND POWER REDUCTIONS DATE December 4. 1984 COMPLETED BY B. A. Schroeder - TELEPHONE (815) 942-2920 REPORT MONTH NOVEMBER, 1984 I l METHOD OF LICENSEE CAUSE & CORRECTIVE NO. DATE TYPEI DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONEITT ACTION TO (HOURS) DOWN REACTOR 3 REPORT # CODE 4 CODES PREVENT RECURRENCE i 5 84 05 S 720 C 1 Refueling outage 'a l l l l 1 2 3 4 F: Forced Reason: Pkthod: Exhibit G-Instructions for l S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data l B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report ( ) File D-Regulatory Restriction 4-Other (Explain) (NUREC-Ol61) I E-Operator Training & License Examination F-Administrative G-Operational Error O g H-Other (Explain) t

~ DOCKET NO. 050-249 UNIT NAME Dresden III UNIT SHUTDOWNS AND POWER REDUCTIONS DATE December 4. 1984 COMPLETED BY B. A. Schroeder -. TELEPHONE (815) 942-2920 REPORT MONTH NOVEMBER, 1984 METHOD OF LICENSEE CAUSE & CORRECTIVE NO. DATE TYPEI DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS) DOWN REACTOR 3 REPORT # CODE 4 CODES PREVENT RECURRENCE 10 84 2s, F 19.5 A 3 Low condenser vacuum l 1 2 3 4 F: Forced Reason: Method: Exhibit G-Instructions for S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report ( ) File D-Regulatory Restriction 4-Other (Explain) (NUREG-0161) E-Operator Training & License Examination F-Administrative G-Operational Error H-Other (Explatn)

+ ,f AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-237' UNIT Dresden II DATE December 4, 1984 COMPLETED BY B. A. Schroeder TELEPHONE a i s /oA ?-202n _ MONTH November, 1984 DAY ' AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) v 1 0 17 0 2-0 18 0 3 0 19 0 4 0 20 0 Q 'S O 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 o 29 0 14 0 30 0 15 0 31 16 0 -O

4 ~ ,s. m ~ q ~ AVERAGE' DAILY UNIT POWER LEVEL s, i ' DOCKET NO. 50-249 UNIT Dresden III DATE-December 4. 1984 ~ COMPLETED BY B. A. Schroeder TELEPHONE 815/942-2920 MONTH November. 1984 l DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL x (MWe-Net) -(MWe-Net) 1 0 17 746 2 181 18 712 -{ ~ 3 464 19 725 4-4 630 20 724 / .'O' 5 ~ 6 769 22 755

i

.h 7 790 23 752 i 8 758 24 744 9 759 25 710 10 718 26 726 11: 775 27 723 12 768 28 725 13 782 29 820 14 774 30 767 .3 3 '15 '768 31 1 16 759 i O I i-e )

,e - ,z, DRESDEN UNIT' 2-SAFETY RELATED MAINTENANCE - NOVEMBER,*.1984

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.y MALFUNCTION HATURE OF LER OR OUTAGE: [ EQUIPMENT MAINTENANCE NUMBER CAUSE' RESULT ' CORRECTIVE ACTION ' Tast Cruge Preventive W.R. #36830 N/A N/A Replaced and calibrated gauge. ' APRM 6, LPRM. Preventive W.R. 36367 N/Al N/A Ran Plateau and. repaired as necessary. 8-17-(D) LPRM-16-41A Preventive W.R. #35644 .N/A N/A Ran plateau and repaired as necessary. (41) N/A N/A Found problem in LPRM and replaced dard LPRM 24-57 ~ Preventive W.R. #36936 Level C and' calibrated. Core Spray 50# Preventive W.R. #37380 N/A 'N/A Replaced pressure switch with new'one. Lcw Harder Pressure Switet EPN #2-1467B HPCI Turbine Preventive W.R. #32387 N/A N/A Repaired trap with repair kit. Replaced Exhsust Drain gasket. ' Pet. Thermal Trep, EPN '#2-2301-1 x Yarwry, EPN Preventive W.R. #31873 N/A N/A Repacked 263-58A' valve on left side. l#263-58A , SRM 21 EPN Preventive W.R. #36785. N/A 'N/A Cleaned connector. ,#2-750-2 L l ACAD Lead-Preventive W.R. #37169 N/A N/A Investigated ACAD control switch problem'- ~' Unicad Control not responding. Tested and recalibrated. ! Switch No problems noted m

m. DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE - NOVEMBER, 1984 NATURE OF LER OR OUTAGE MALFUNCTION. EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Suppression Preventive W.R. #37796 N/A N/A Verified indicated temperature readings Pool Trmp. with actual temperature. Readjusted Monitor System recorder as needed for proper temperature readings. H2 Monitoring Preventive W.R. #36292 N/A N/A Recalibrated H2 monitor per vendor manual. - . System Required on a periodic interval. APRM #2 Preventive W.R. #37570 N/A N/A Investigated APRM problem. Repaired flow bias reference board. Calibrated and tested. SRM 22 Ind. 5 Preventive W.R. #36738 N/A N/A Corrected a " static" problem and re-Penel calibrated instrument, j i i j 4-I

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - NOVEMBER, 1984 ~ NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION HFA R21ay Corrective W.R. #35326 N/A N/A Checked rolay c'ontacts and fuses. Relay replaced by W.R. #36973 IRM Pre-amps Preventive W.R. #35771 N/A N/A IRM pre-amp cabinet investigated. Repairs and corrective actions will be completed by Modification #M12-3-84-51. H rt Exchanger Preventive W.R. #36711 N/A N/A Investigated valve closure problem. Found Dirchrrge limit switches in wrong position. Velva Readjusted. 3-1501-3A A0-3-1601-58 Preventive W.R. #36538 N/A N/A Investigated air leak - none found. LPRM 40-33 Preventive W.R. #37777 N/A N/A Investigated abnormally high TIP trace Level B (6) reading. Per Formed DIS 700-15 to verify accuracy. LPRM Upscale Preventive W.R. #37154 N/A M/A Reset alarms. and Downscale Trip LPRM 32-09B Preventive W.R. #34390 N/A N/A Changed LPRM indicating lamp. SRM 24, EPN Preventive W.R. #37534 N/A N/A Repaired connector and completed DIS 700-3

  1. RM3-750-lD for SRM #24. Works fine.

Accumulator Preventive W.R. #37244 N/A N/A Changed accumulator. 58-35 N/A N/A Adjusted packing. Accumulator Preventive W.R. #33976 14 - 27 ( 0-7) LPRM 32-41B Preventive W.R. #34557 N/A N/A Replaced LPRM board - tested all alarms.

DRESDEN UNIT 3 SAFETY RELATED MAINTFNANCE - NOVEMBER, 1984 NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Accumulator Preventive W.R. #33977 N/A N/A Adjusted packing. 10-23 (C-6) Ycrwry Level Preventive W.R. #38041 N/A N/A Replaced the bleed plug on right side. Switch LIS-Checked for leaks and found none. 263-72D IRM Chrnnel 18 Preventive W.R. #34572 N/A N/A Connected mode under the reactor. Detector tested ok. HPCI Oil Preventive W.R. #37889 N/A N/A Cleaned oil filter and installed new 0-ring. Filtcr Replaced filter. I PRM Downscale, Preventive W.R. #37469 N/A N/A Replaced bulb in back panel and tested. EPN #08-33A Works fine. APRM Channel 1 Preventive W.R. #36837 N/A N/A Replaced K5 relay. Auxilirry Ralry K5 Accumulator Preventive W.R. (37243 N/A N/A Changed accumulator. 42-19 HPCI Oil Filter Preventive W.R. #37835 N/A N/A Cleaned filter elements and changed High dp O-ring. CRD Accumulatoi Preventive W.R. #31082 N/A N/A Adjusted packing and lubed stem with 18-43 Position N-5000. Ell 127 Valve Syrtem II APRM Preventive W.R. #37463 N/A N/A Replaced joy stick. Byprs: Switch Die:cl Genera-Preventive W.R. #38673 N/A N/A Replaced motor and coupling. tor Continuous Lub Oil Pump

DRESDEN UNIT 3 [AFETY RELATED_ MAINTENANCE - NOVEMBER, 1984 ~ ~ MALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION

  1. 3 Dicel Preventive W.R. #38040 N/A N/A Performed quarterly inspection during Generrtor September, 1984.

3A Core Spray Preventive W.R. #33395 N/A N/A Repaired conduit and inspected wires. PP Motor ATWS System Preventive W.R. #29611 N/A N/A Replaced terminal blocks. Junction Box ACAD/ CAM Preventive W.R. #29615 N/A N/A Replaced terminal blocks. U-3 Rx/ Turbine Preventive W.R. #36484 N/A N/A Adjusted magnets. Building Inter-lock Bus 34-1 Under-Preventive W.R. #30708 N/A N/A Removed, replaced relays, and wired. voltegt Trip Auxilicry Relcys, EPN

  1. 127B34-IX 1 cnd X2 MO 3-1501-19A Preventive W.R. #33235 N/A N/A Replaced bulb.

Velva Annunciator Preventive W.R. #37892 N/A N/A Investigated remote level indication for H-7 on 903-8, improper level indication. Replaced a EPN #LSL3-5141-defective reset switch and calibrated 17 level indication. HPCI 10 Valve, Preventive W.R. #34648 N/A N/A Disassembled valve to repair body to bonnet EPN #2301-10 leak. Repacked valve stem with new packing.

ms DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - NOVEMBER, 1983 NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION APRM Channel 6 Preventive W.R. #34541 N/A N/A Investigated APRM alarm problem when reset switch is activated. No abnormality found. N/A ' N/A Investigated # 1 bypass control problem. U-3 #1 Bypass Preventive W.R. #37311 Valve, EPN Readjusted

  1. 3-5641-12A and 12B 1501-3A Valve Preventive W.R. #38198 N/A N/A Investigated abnormal flow indication.

Recalibrated flow indication instrumen-tation and valve control tested. s LPRM 40-25C Preventive W.R. #37775 N/A N/A Investigated LPRM Hi Hi alarm problem. Channel 1 Performed plateau check. Recalibrated and tested. Itolation Con-Preventive W.R. #38784 N/A N/A Repaired broken connector, recalibrated ienrer Vent A and tested radiation monitor. Director Indi-cctor LSH 3-2369 U-3 Preventive W.R. #34875 N/A N/A Investigated HPCI drain pot level alarm HPCI Drain Pot problem. Disassembled and repaired drain Turbine pot. Calibrated and tested for proper operation. Temporary De-Preventive W.R. #30609 N/A N/A Disconnected electric feed to "D" drywell contemination cooler. Wired feeder to decontamination Fe*d Recircula-equipment for reactor vessel / piping decon tion Piping project. i

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - NOVEMBER, 1984 MALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION U-3 125 VDC Preventive W.R. #32291 N/A N/A Investigated 100 volt ground on 125 VDC s System - 100 bus. Repaired defective alarm wire on Volt Grd on 3A recirculation pump. CRT #30 which is for Panel 902-24 Annun-cintor f

DRESDEN UNIT' 2/3 SAFETY RELATED MAINTENANCE - NOVEMBER, 1984~ ~ NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION RPIS Relay Preventive W.R. #30967 N/A N/A Checked spare RPIS relay cards.for Cards proper operation.- Returned to Stores as spare parts. 4 e 9 e A

e r ne

SUMMARY

OF OPERATING EXPERIENCE UNIT TWO NOVEMBER, 1984 1, 11-01 to.Il-30 Refueling outage activities continued throughout the" entire period. The unit is presently scheduled to start-up sometime during mid-January, 1985. Major work includes: --Local Leak Rate Tests [ - Scram Discharge Volume Modification - Reactor Vessel and Piping Decon - Replacement of all LPCI Relays - Exxon Fuel Inspection - ISI Weld Inspection - CRD and Control Rod Blade Work - Jet Pump and Vessel Internal Inspection t S l l r L. f 4 i l _ %- g.

.4

SUMMARY

OF OPERATING EXPERIENCE' UNIT THREE NOVEMBER, 1984 ' 11-01 to 11-30 Unit 3 was shutdown at the beginning of this period - due to a reactor s' cram that occurred on 10/26/84 (caused by low condenser vacuum). The unit was brought ~ on-line again at111:50 a.m. of the 2nd and operated the remainder of the month (with normal power reductions for weekend surveillances) reaching a' power level of 820 MWe with a capacity factor of 86.4% and an availability of 95.02%. t e W., 4 4 _f

UNIQUE REPORTING REQUIREMENTS Mt.IN STEAM RELIEF VALVE OPERATIONS Relief valve operations during the reporting period are summarized in the following table. The table. includes information as to which relief valve was actuated, how it was actuated, and the circumstances resulting in its actuation. Valves Description Unit Date Actuated Actuations Conditionc of Events 2 11-01-84 to 11-30-84 None 3 None 4-- l h' ( t i. f l l' I 6 2--

Commonwe:.ith Edison Dresden NucleIr Power Stati:n R.R #1 Morris, Illinois 60450 Telephone 815/942-2920 December 4, 1984 i i DJS LTR: 84-1346 Director, Office of Inspection and Enforcement United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk

Dear Sir:

Enclosed, please find Dresden Station's operating data for last month. This information is supplied to your office per the instruc-tions set forth in Regulatory Guide 1.16. Sincerely, 6 i / D. J. Scott l Station Superintendent i Dresden Nuclear Power Station l l DJS: BAS:hjb i l l Enclosure cc: Region III, Regulatory Operations, U.S. NRC Chief, Division Nuclear Safety, State of IL l U.S. NRC, Document Management Branch t l Nuclear Licensing Administrator l Nuc. Sta. Div. Vice Pres. Manager, Tech. Serv. Nuc. Sta. Tech. Staff AE On-Site NRC Inspector l Sta. Nuc. Eng. Dept. l Comptroller's Office PIP Coordinator INPO Records Center File /llRC Op. Data File / Numerical O f? ' <II I i 1 ., _}}

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