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Category:MONTHLY OPERATING ANALYSIS REPORT
MONTHYEARML20217D6851999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for North Anna Power Station,Units 1 & 2.With ML20216E5011999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for Naps,Units 1 & 2. with ML20210S1411999-07-31031 July 1999 Monthly Operating Repts for July 1999 for North Anna Power Station.With ML20209E5641999-06-30030 June 1999 Monthly Operating Repts for June 1999 for North Anna Power Stations,Units 1 & 2.With ML20195G1901999-05-31031 May 1999 Monthly Operating Rept for May 1999 for NAPS Units 1 & 2. with ML20206Q6671999-04-30030 April 1999 Monthly Operating Repts for Apr 1999 for North Anna Power Station,Units 1 & 2.With ML20205K3041999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for North Anna Power Station,Units 1 & 2.With ML20207K5921999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for North Anna Power Station,Units 1 & 2.With ML20199C8781998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for North Anna Power Station,Units 1 & 2.With ML20197G8551998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for North Anna Power Station,Units 1 & 2.With ML20195D0571998-10-31031 October 1998 Monthly Operating Repts for Oct 1998 for North Anna Power Station,Units 1 & 2.With ML20154H4001998-09-30030 September 1998 Monthly Operating Repts for Sept 1998 for North Anna Power Station,Units 1 & 2.With ML20151W4711998-08-31031 August 1998 Monthly Operating Repts for Aug 1998 for North Anna Power Station Units 1 & 2.With ML20237A4341998-07-31031 July 1998 Monthly Operating Repts for July 1998 for North Anna Power Station,Units 1 & 2 ML20236M3381998-06-30030 June 1998 Monthly Operating Repts for June 1998 for North Anna Power Station,Units 1 & 2 ML20248M1011998-05-31031 May 1998 Monthly Operating Repts for May 1998 for North Anna Power Station,Units 1 & 2 ML20247F4441998-04-30030 April 1998 Monthly Operating Repts for Apr 1998 for North Anna Power Station,Units 1 & 2 ML20216B1891998-03-31031 March 1998 Monthly Operating Repts for Mar 1998 for North Anna Power Station,Units 1 & 2 ML20216E2561998-02-28028 February 1998 Monthly Operating Repts for Feb 1998 for North Anna Power Station,Units 1 & 2 ML20202D5811998-01-31031 January 1998 Monthly Operating Repts for Jan 1998 for North Anna Power Station,Units 1 & 2 ML20198P1351997-12-31031 December 1997 Monthly Operating Repts for Dec 1997 for North Anna Power Station,Units 1 & 2 ML20203F3531997-11-30030 November 1997 Monthly Operating Repts for Nov 1997 for North Anna Power Station,Units 1 & 2 ML20199C6871997-10-31031 October 1997 Monthly Operating Repts for Oct 1997 for North Anna Power Station,Units 1 & 2 ML20217H9201997-09-30030 September 1997 Monthly Operating Repts for Sept 1997 for North Anna Power Station,Units 1 & 2 ML20216H9141997-08-31031 August 1997 Monthly Operating Repts for Aug 1997 for North Anna Power Station,Units 1 & 2 ML20210K5501997-07-31031 July 1997 Monthly Operating Repts for Jul 1997 for North Anna Power Station,Units 1 & 2 ML20210K5581997-06-30030 June 1997 Revised Monthly Operating Rept for June 1997 for North Anna Power Station,Units 1,correcting Error Found on Shutdowns & Power Reductions Summary ML20140E5371997-05-31031 May 1997 Monthly Operating Repts for May 1997 for North Anna Power Station Units 1 & 2 ML20148B3771997-04-30030 April 1997 Monthly Operating Repts for Apr 1997 for North Anna Power Station Units 1 & 2 ML20141E2681997-04-30030 April 1997 Monthly Operating Repts for Apr 1997 for North Anna Power Station Units 1 & 2 ML20140D7551997-03-31031 March 1997 Monthly Operating Repts for North Anna Power Station,Units 1 & 2 ML20135F3111997-02-28028 February 1997 Monthly Operating Repts for Feb 1997 for North Anna Power Station,Units 1 & 2 ML20134H2961997-01-31031 January 1997 Monthly Operating Repts for Jan 1997 for North Anna Power Station Units 1 & 2 ML20133G5291996-12-31031 December 1996 Monthly Operating Repts for Dec 1996 for North Anna Power Station Units 1 & 2 ML20135E4961996-11-30030 November 1996 Monthly Operating Repts for Nov 1996 for North Anna Power Station Units 1 & 2 ML20134K5811996-10-31031 October 1996 Monthly Operating Repts for Oct 1996 for North Anna Power Station Unit 1 & 2 ML20128N1301996-09-30030 September 1996 Monthly Operating Repts for Sept 1996 for North Anna Power Station Unit 1 & 2 ML20117M0781996-08-31031 August 1996 Monthly Operating Repts for Aug 1996 for North Anna Power Station Units 1 & 2 ML20116J6431996-07-31031 July 1996 Monthly Operating Repts for Jul 1996 for North Anna Power Station Units 1 & 2 ML20115G2341996-06-30030 June 1996 Monthly Operating Repts for June 1996 for North Anna Power Station Units 1 & 2 ML20117M1811996-05-31031 May 1996 Monthly Operating Rept for May 1996 for North Anna 1 ML20117E7501996-04-30030 April 1996 Monthly Operating Rept for Apr 1996 for North Anna Power Station Units 1 & 2 ML20107C2951996-03-31031 March 1996 Monthly Operating Repts for Mar 1996 for North Anna Power Station Units 1 & 2 ML20106H0631996-02-29029 February 1996 Monthly Operating Repts for Feb 1996 for NAPS ML20097D5661996-01-31031 January 1996 Monthly Operating Repts for Jan 1996 for North Anna Power Station Units 1 & 2 ML20096C3041995-12-31031 December 1995 Monthly Operating Repts for Dec 1995 for North Anna Power Station,Units 1 & 2 ML20095D8611995-11-30030 November 1995 Monthly Operating Repts for Nov 1995 for North Anna Power Station ML20094H3601995-10-31031 October 1995 Monthly Operating Repts for Oct 1995 for North Anna Power Station ML20093D8781995-09-30030 September 1995 Monthly Operating Repts for Sept 1995 for North Anna Power Station Units 1 & 2 ML20092F5571995-08-31031 August 1995 Monthly Operating Repts for Aug 1995 for North Anna Power Station 1999-09-30
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20217N9281999-10-20020 October 1999 Special Rept:On 991003,PZR PORV Actuation Mitigated RCS low- Temp Overpressure Transient.Caused by a RCP Facilitating Sweeping of Entrained Air Out of RCS Loops.Operating Procedure 2-OP-5.1 Will Be Revised ML20217H3631999-10-14014 October 1999 Rev 0 to COLR for North Anna 2 Cycle 14 Pattern Su ML18152A2811999-10-12012 October 1999 Technical Basis for Elimination of Nozzle Inner Radius Insps (for Nozzles Other than Reactor Vessel),Technical Basis for ASME Section XI Code Case N-619. ML20212J9251999-10-0101 October 1999 Safety Evaluation Accepting Licensee Relief Request IWE-3 for Second 10-year ISI for Plant ML20217D6851999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for North Anna Power Station,Units 1 & 2.With ML20211N2611999-09-0808 September 1999 Safety Evaluation Concluding That Proposed Irradiation of Fuel Rods Beyond Current Lead Rod Burnup Limit & Clarification of Terminology with Respect to Reconstituted Fuel Assemblies Acceptable ML20211J2561999-08-31031 August 1999 Safety Evaluation Accepting Elimination of Augmented ISI Program for Pressurizer Spray Lines at North Anna Unit 2 ML20216E5011999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for Naps,Units 1 & 2. with ML20211J2421999-08-31031 August 1999 Safety Evaluation Supporting Removal of Augmented Insp Program on RCS Bypass Lines from Licensing Basis of North Anna,Units 1 & 2 ML20210T0791999-08-13013 August 1999 Safety Evaluation Concluding That Revised Withdrawal Schedules for North Anna Units 1 & 2 Satisfy Requirements of App H to 10CFR50 & Therefore Acceptable ML20210S1411999-07-31031 July 1999 Monthly Operating Repts for July 1999 for North Anna Power Station.With ML20210Q9931999-07-31031 July 1999 Rev 1 to COLR for North Anna Power Station,Unit 2 Cycle 13 Pattern Ud ML20209E5641999-06-30030 June 1999 Monthly Operating Repts for June 1999 for North Anna Power Stations,Units 1 & 2.With ML20195G1901999-05-31031 May 1999 Monthly Operating Rept for May 1999 for NAPS Units 1 & 2. with ML20206L4831999-05-10010 May 1999 SER Accepting Request to Delay Submitting Plant,Unit 1 Class 1 Piping ISI Program for Third Insp Interval Until 010430, to Permit Development of Risk Informed ISI Program for Class 1 Piping ML20206Q6671999-04-30030 April 1999 Monthly Operating Repts for Apr 1999 for North Anna Power Station,Units 1 & 2.With ML20205S0391999-04-21021 April 1999 SER Accepting Request for Relief IWE5,per 10CFR50.55a(a)(3) & Proposed Alternatives for IWE2,IWE4,IWE6 & IWL2 Authorized Per 10CFR50.55a(a)(3)(ii) ML20205K3041999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for North Anna Power Station,Units 1 & 2.With ML20207K5921999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for North Anna Power Station,Units 1 & 2.With ML20207E1731999-02-18018 February 1999 Informs Commission of Status of Preparations of IAEA Osart Mission to North Anna Nuclear Power Plant Early Next Year ML20205A0241998-12-31031 December 1998 Summary of Facility Changes,Tests & Experiments,Including Summary of SEs Implemented at Plant During 1998,per 10CFR50.59(b)(2).With ML20199C8781998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for North Anna Power Station,Units 1 & 2.With ML20198H9541998-12-0303 December 1998 Safety Evaluation Authorizing Proposed Alternative for Remainder of Second 10-yr Insp Interval for Plant ML20198J5561998-12-0303 December 1998 ISI Summary Rept for North Anna Power Station,Unit 1 1998 Refueling Outage Owner Rept for Inservice Insps ML20197G8551998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for North Anna Power Station,Units 1 & 2.With ML20196G1381998-11-0303 November 1998 Safety Evaluation Authorizing Rev to Relief Request NDE-32 for Remainder of Second 10-yr Insp Interval for Each Unit ML20195D0571998-10-31031 October 1998 Monthly Operating Repts for Oct 1998 for North Anna Power Station,Units 1 & 2.With ML20154L0691998-10-14014 October 1998 COLR for North Anna Power Station Unit 1 Cycle 14 Pattern Xy ML20155J6911998-10-0909 October 1998 Staff Response to Tasking Memorandum & Stakeholder Concerns ML20154H4001998-09-30030 September 1998 Monthly Operating Repts for Sept 1998 for North Anna Power Station,Units 1 & 2.With ML20151X8011998-09-10010 September 1998 Special Rept:On 980622,groundwater Level at Piezometer P-22 Was Again Noted to Be Above Max Water Level by 0.71 Feet. Increased Frequency of Piezometer Monitoring & Installed Addl Piezometers at Toe of Slope Along Southwest Section ML20151W4711998-08-31031 August 1998 Monthly Operating Repts for Aug 1998 for North Anna Power Station Units 1 & 2.With ML20237A4341998-07-31031 July 1998 Monthly Operating Repts for July 1998 for North Anna Power Station,Units 1 & 2 ML20236V1251998-07-14014 July 1998 ISI Summary Rept for Naps,Unit 2,1998 Refueling Outage Owners Rept of Isis ML20236K5531998-07-0707 July 1998 SER Accepting Request for Change in ISI Commitment on Protection Against Pipe Breaks Outside Containment ML20236M3381998-06-30030 June 1998 Monthly Operating Repts for June 1998 for North Anna Power Station,Units 1 & 2 ML20248M1011998-05-31031 May 1998 Monthly Operating Repts for May 1998 for North Anna Power Station,Units 1 & 2 ML20248C8831998-05-29029 May 1998 SER Accepting Alternatives Proposed by Licensee for Use of Code Case N-535,pursuant to 10CFRa(a)(3)(i) in ASME Section XI Inservice Insp Program ML20247K9281998-05-15015 May 1998 Special Rept:On 980428,letdown PCV Exhibited Slow Response When C RCP Was Started.Cause to Be Determined.Review of Operating Procedure Will Be Performed to Determine If Enhancements Are Necessary ML20216A8971998-05-0606 May 1998 Rev 0 to Cycle 13 Pattern Ud COLR for North Anna Unit 2 ML20247F4441998-04-30030 April 1998 Monthly Operating Repts for Apr 1998 for North Anna Power Station,Units 1 & 2 ML20217B5321998-04-20020 April 1998 Safety Evaluation Supporting Proposed Alternative to ASME Code for Surface Exam of Seal Welds on Threaded Caps for Plant Reactor Vessel Head Penetrations for part-length CRDMs ML20217H9611998-04-0707 April 1998 Special Rept:On 980216,groundwater Level at Piezometer P-22, Again Noted to Be Above Max Water Level by 0.41 Feet.Design Package for Installation of Addl Standpipe Piezometers at Toe of Slope Southeast Section,Developed ML20216B1891998-03-31031 March 1998 Monthly Operating Repts for Mar 1998 for North Anna Power Station,Units 1 & 2 ML20216E8801998-03-0606 March 1998 Safety Evaluation Authorizing Licensee Request for Relief from ASME Code Requirements,Paragraph IWA-2400(c) (Summer Edition W/Summer 1983 Addenda),For Upcoming Naps,Unit 1 Outage,Per 10CFR50.55a(a)(3)(ii) ML20216E2561998-02-28028 February 1998 Monthly Operating Repts for Feb 1998 for North Anna Power Station,Units 1 & 2 ML20199J6431998-02-0202 February 1998 Safety Evaluation Approving Request for Approval to Repair Flaws in Accordance W/Gl 90-05 for ASME Code Class 3 SW Piping for North Anna,Unit 1,as Submitted in ISI Relief Request NDE-46 on 971218 ML20202D5811998-01-31031 January 1998 Monthly Operating Repts for Jan 1998 for North Anna Power Station,Units 1 & 2 ML20198S7571998-01-15015 January 1998 Safety Evaluation Accepting Licensee Request for Approval to Repair Flaws IAW GL-90-05 for ASME Code Class 3 Svc Water Piping ML20198P1351997-12-31031 December 1997 Monthly Operating Repts for Dec 1997 for North Anna Power Station,Units 1 & 2 1999-09-08
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VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH oc tn ho,. YEAR m 9
I l
l
.i APPROVED:
STATION MANAGER V 8011200 300 . . .
.y - . ..
_ . ~ , , _ , - . ., 9
OPERATING DATA REPORT DOCKET NO. 50-338 DATE 11-5-80 COMPLETED BY W. A. Woodsmal1, II:
TELEPHONE (703) 894 5151 ext.
360 OPFRATING STATUS
- 1. Unit Name: North Anna Unit 1 Notes
- 2. Reporting Period: October 1980 2775
- 3. Licenwd Thermal Power (MWO:
- 4. Nameplate Rating (Gross MWe): 947
- 5. Desagn Electrical Rating (Net MWe): 907
- 6. Maximum Dependable Capacity-{ Gross MWe): 880
- 7. Maximum Dependable Capacity (Net MWe): 850
- 8. If Changes Occur in Capr. city Ratings (Items Number 3 Through 7) Since IJst Report, Give Reasons:
N/A
- 9. Power Level To Which Restricted.lf Any (Net MWe): N/A
- 10. Reasons For Restrictions.If Any: N/A This Month Yr..to.Date Cumulative I1. Hours la Reporting Period 745 7 120 91 no7
- 12. Number Of Hours Reactor Was Critical 741.9 6.435.6 16.600.8
- 13. Reactor Reserve Shutdown Hours 3.1 64.3 213.1
- 14. Hours Generator On.Line 729.1 6.223.2 16.276.4
- 15. Unit Reserve Shutdown Hours 0 0 0
- 16. Gmes Thermal Energy Generated (MWii) 1.843.946 15.889.288 42.164.?n1
- 17. Gross Electrical Energy Generated (MWH) 590,995 _
5,002,663 13.349.012
- 18. Net Electrical Energy Generated (MWH) 559,612 4.707.300 12.560.746
- 19. Unit Service Factor 97.9 85.0 77.2
- 20. Unit Availability Factor 97.9 85.0 77.2
- 21. Unit Capacity Factor (Using MDC Net) 88.4 75.7 .
70.0
- 22. Unit Capacity Factor (Using DER Net) 82.8 70.9 65.6
- 23. Unit Forced Outage Rate 2.I 8.3 6.3
- 24. Shutdowns Scheduled Over Next 6 Months (Type. Date.and Duration of Each):
Refuelina. Trit and firo nrntnetinn mndificatinne. nocomhor m , 1990; E b Meeks
- 25. If Shut Down At End Of Report Period. Estimated Date of Startup: N/A
- 26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY INITIA L ELECTRICITY COMMERCIAL OPERATION N/77 i
AVERAGE Da:LY UNIT POWER LEVEL
, DOCKET NO. 50-338 UNIT NA-1 DATE 11-5-80 COMPLETED BY W. A. Woodsmall, III TELEPHONE (703) 894-5151 ext. 360 MONTH October DAY AVERAGE DAILY POWER LEVEL ~
DAY AVERAGE DAILY ?OWER LEVEL (MWe-Net) (MWe-Net; 113 425 1 37 2 142 gg 837 3 522 39 841 4 840 20 841 5 842 21 845 6 841 845 22 7 817 23 845 8 840 24 843 9 842 25 838 10 851 26 846 13 852 27 845 12 852 844 28 13 851 29 847 14 846 838 30 15 811 841 3
16 19R INSTRUCTIONS On this format, list the average daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt.
(9/77) ,
1
DOCKET NO. 50-338 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME h Anna 1 DATE - -80 COMPLETED BY - A. G. Neufer REPORT MONTH October 1980 TELEPHONE (703) 895-5151 ext. 221 n.
, .$E 3 Y Licenwe ,E-t, Cause & Correceive No. Date g 3g R ,s5 Event ?? o '8 Action to H
$= 5 j ;f, Repori # EU U Prevent Recurrence c5 80-23 This shutdo wn wa s concluded o i Dctober 1 at 0615 when thc turbine tenerator was placed in service.
Duration th is month 6.2 hrs.
80-24 801002 F 9.7 A* 4* N/A N/A N/A Unable to operate due to 6th point heater tube failure. Ramped unit off the line, kept reactor critical.
Repaired failed tubes.
80-25 801015 N/A N/A H* N/A N/A N/A N/A Significant power reduction greater than 20% of the average daily power level.
I 2 3 4 F: Forced Reason: Method: Exhibit G-Instructions S: Scheduled A Equipment Failure (Explain) I-Manual for Preparation of Data B-Maintenance of Test 2-Manual Scram. Entry Sheets for I.icensee C Refueling 3- Automatic Scram. Event ReporI (LER) File (NilRI G-D Regulatory Restriction 4-Other ( Explain 1 0161)
E-Operator Training & Ucense Examination F-Administrative 5 G-Operational Error (Explain) Exhibis 1 - Same Source (9/77) Il Olher (Explain)
*See attached sheet
Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-338 ,
REPORT MDNTH netnhor UNIT NAME North Anna _1 YEAR 1 ann DATE 11-7-80 COMPLETED BY A. G. Neufer 80-24 (4) Reactor was kept critical and unit removed from service for repair cf leaking or failed 6th point "B" Feed Water Heater Tubes.
80-25 (H) After large or sudden power reductions the steam generator cation conductivity increases. We are required by Administrative Procedure 23 to hold reactor power at or below 30% until conductivity decreases to less than 2.00 Micrombos. We reduced the conductivity by the Feed and Bleed Method.
Load was restricted to less than 50% power to comply with Technical Specification 3.2.1 Axial Flux Distribution, due to accumulation of penality points.
4
- : -.-.-..r- .. .
OPERATING DATA REPORT DOCKET NO. 50-339 DATE 11-S-80__
COMPLETED BY W. A. Woodsmall, II TELEPHONE (703) 894-5151 g .
OPERATING STATUS NOI'5 X. Unit Name: Nnrth anna Ifni+ ? ,
- 2. Reporting Period: _DEf.C5pr 14Rn
- 3. Licensed Thermal Power (M Wt): 2776
- 4. Nameplate Rating (Gross 6We): 447
- 5. Design Electrical Rates (Net MWe): 907
- 6. Maximum Dependable Capacity (Gross MWe): 928
- 7. Maximum Dependable Capacity (Net MWe): 898
- 8. If Changes Occur in Capacity Ratings (items Number 3 Thmugh 7) Sinct '.ast Report. Give Reasons:
N/A
- 9. Power Level To Which Restricted.If Any I' Jet MWe): N/A
- 10. Reasons For Restrictions,If Any: N/A This Month Yr.-to-Date Cumulative
- 11. Hours In Reporting Period 745 1 A71 2 g72
- 12. Number Of Hours Reactor Was Critical 722.5 11415 7 1;935.7 13 Reactor Reserve Shutdown Hours 0 0 0
- 14. Hours Generator On-Line 714.3 1.228.7 1.??,1 7
- 15. Unit Reserve Shutdown Hours n n n
- 16. Grom Thermal Energy Generated (MWH) 1.6A6.717 9_1a4 nqn 9 gan nnn
- 17. Gross Electrical Energy Generated (MWH) 551,312 _. ~753'332
. '753.'332
- 18. Net Electrical Energy Generated (MWH) 522.444 70A;691 7ng 461
- 19. Unit Service Factor N/A N/A NA
- 20. Unit Availat:ility Factor N/A N/A N/4
- 21. Unit Capacity Factor (Using MDC Net) N/A N/A N/A
- 22. Unit Capacity Factor (Using DER Net) N/A N/A N/A
- 23. Unit Forced Outage Rate N/A N/A N/A
- 24. Shutdowns Scheduled Over Next 6 Months (Type. Date, and Duration of Eachl:
TMI and fire Drotection modifications! Nnvomber 1- 14Rnr ?? riave Mair tenance: April 1981: 11 days
- 25. If Shi t Down At End Of Report Period. Estimated Date of Startup: N/A
- 26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY 6/12/80 INITIAL ELECTRICITY 8/25/80 COMMERCIAL OPERATION 11/25/80 N/77 )
I I
AVERAGE DAILY UNIT POWER LEVEL
~
DOCKET NO. 50-339 UNIT NA-2 DAE 11-5-80 COMPLEED BY W. A. Woodsmall, III TELEPHONE (703)894-5151 ext. 36(
MONTH October DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL i (MWe-Net) (MWe-Net) 648 845 37 2 632 gg 862 3 525 39 268 4 646 20 125 5 461 21 58?
6 734 22 L68 7 - 749 23 868 8 414 24 856 9 393 25 868 10 521 26 871 11 832 27 567 12 869 28 852 13 859 851 29 14 801 30 858 15 864 3, 788 16 857 INSTRUCTIONS On this format, list the average daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt.
(9/77)
\
DOCKET NO. 50-339 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME -North Anna-2 DATE 11-9-80 COMPLETED BY _A. G. Neufer REPORT MOc.;n October 1980 TELEPHONE 894-5151 - X 221 "L= -
c
- 5; "E *EU Licemee Er E% Cause & Currective No. Date h jj k 3j$ Evc nt y U Action to H
f $ ggg Report it u) U g Prevent Recurrence c5 80-08 801019 F 25.2 A* 3 N/A N/A N/A Generator-Turbine / Reactor trip when 2A Station Service transformer lock out relay actuated. The relay actuated when a low side cable, on the 2A transformer, blew out. Re-paired the bad cable and returned unit to operation.
80-09 801020 F 3.5 G* 3 N/A N/A N/A Lo-Level "C" S/G while restarting the Unit, operator experience.
80-10 801031 S 2.0 B 4* N/A N/A N/A A scheduled trip occurred when the generator output breakers were opened in accordance with 2-SU-27 100% Load Reject Test.
NOTE 8(1-10 t:0NTINUES THRC UGH EN[ OF THE MONTH I 2 3 4 F: Forced Reason: Method: Exhibit G -Instructions S: Scheduled A Equipment Failure (Explain) l-Manual for Pieparation of Data B.Mainter 9ce of Test 2-Manual Scram. Entry Sheets for Licensee C-Refue' .g 3. Automatic Scram. Event Report (LER) File (NURI G-D-Regu atory Restriction 4-01her ( Explain) 016l)
E-Oper stor Training & License Examinati.m F-Administ rative 5 G-Operational Error (Explain) Exhibit I - Same Source 19/77) Il-Other (Explain)
*SEE ATTACHED SHEET
- - Page i of i UNIT SHUTDOWN AND POWER REDUCTIONS
. EXPLANATION SHEET DOCKET NO. 50-339
,' REPORT MONTH October UNIT NAME North Anna - 2 YEAR 1989 DATE 11-9-80 COMPLETED BY A. G. Neufer 80 -08 (A) At approximately 0700 a fire occurred in 2A2 4160V/480V transformer tripping 2Al-2 & 2A2-2 480V busses. Extinguished fire and lined up alternate feeds for the lost busses through existing cross ties. At 0724 the 2A station service transformer locked out tripping the turbine, reactor and generator. Investigation revealed that one of the low side cables had blown out. Checks were performed on the transformer after splicing the cable. A check of the generator voltage regulatcr was made due to the field forcing alarm and high generator voltage at the time that the 480V XFMR tripped all checks were satisfactory.
Returned unit to service.
80 -09 (G) Steam generator level controlled in manual while steam demand is increased due to turbine load increase " auto" operation not reliable until approximately 20% power.
80 -10 (4) 2-SU-27 calls for the plant to be tripped from 100% full power to check response of automatic safety systems.
1 me .
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