ML17310B281

Monthly Operating Repts for Apr 1993 for Palo Verde Nuclear Generating Station.W/940513 Ltr

ML17310B281
Person / Time
Site:	Palo Verde
Issue date:	04/30/1994
From:	Ecklund B ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
417-00227-BSE-F, 417-227-BSE-F, NUDOCS 9405180352
Download: ML17310B281 (23)

Text

ACCELERATED DISTRIBUTION DEMONSTlTION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

NOTARIZED: NO DOCKET FACIL:STN-50-528 Palo Verde Nuclear Station, Unit 1, Arizona Publi 05000528 STN-50-529 Palo Verde Nuclear Station, Unit 2, Arizona Publi 05000529 STN-50-530 Palo Verde Nuclear Station, Unit 3, Arizona Publi 05000530 AUTH. NAME AUTHOR AFFILIATION ECKLUND,B.S. Arizona Public Service Co. (formerly Arizona Nuclear Power RECXP.NAME RECIPIENT AFFILIATION

SUBJECT:

Monthly operating rept Generating Station. 513 tr. 1993 for pr Palo Verde Nuclear D

DISTRIBUTION CODE IE24D COPIES RECEIVED'LTR TITLE: Monthly Operating Report (per Tech Specs) f ENCL i SIZE

/

NOTES:STANDARDIZED PLANT 05000528 Standardized plant. 05000529 A Standardized plant. 05000530 D

RECIPIENT COPIES RECIPIENT COPIES D ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PDIV-3 PD 1 1 HOLXAN, B 1 1 TRAN,L 1 1 XNTERNAL: ACRS 10 10 AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 /BORS/OEAB 1 1 NRR/DRXL/RPEB 1 1 REG F 01 1 1 RGN4 1 1 EXTERNAL: EG&G BRYCE,J.H 1 1 NRC PDR 1 1 NSIC 1 1 D

D D

NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 22 ENCL 22

Arizona Public Service Company PALO VERDE NUCLEAR GENERATING STATION P.O. BOX 52034 ~ PHOENIX. ARIZONA 85072-2034 417-00227-BSE/F HD May 13, 1994 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-37 Washington, DC 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Units1,2, and 3 Docket Nos. STN 50-628/529/630 Monthly Operating Reports for April 1994 4' -2 Enclosed are the Monthly Operating Reports for April 1994, prepared and submitted pursuant to Specification 6.9.1.6 of Appendix A (Technical Specifications) to the PVNGS Units 1, 2, and 3 Operating Licenses. By copy of this letter, Arizona Public Service Company is also forwarding the Monthly Operating Reports to the Regional Administrator, NRC Region IV.

If you have any questions, please contact me at (602) 340-4068.

Sincerely, BSE/FHD/gez Enclosures cc: L. J. Callan (all w/enclosures)

K. E. Perkins A. H. Gutterman NRC Senior Resident Inspector INPO Records Center Utility Data Institute g napa~

q4Q5 f8o552, 94045528 PDR AOOCK,05000

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AVERAGE DAILYUNIT POWER LEVEL DOCKET NO. 54525 UNIT NAME ELHGR1 DATE Q5L 15K COMPLETED BY ~~Gktl03$ l IKQIMdm MONTH: April 1994 DAY AVERAGE DAILYPOWER LEVEL DAY AVERAGE DAILYPOWER LEVEL 1076 17 1079 1077 18 1080 1079 19 1080 1079 20 1079 1082 21 1077 1083 22 1074 1082 23 1078 1082 24 1081 1083 25 1080 10 942 26 1080 1068 27 1081 12 1081 28 1082 13 1082 29 1081 14 1079 30 1078 15 1079 31 16 1078

REFUELING INFORMATION DOCKET NO. ~25 UNIT NAME Mbl&&1 DATE 95L1QLK COMPLETED BY MMA!ill Scheduled date for next refueling shutdown.

The 5th refueling outage is tentatively scheduled for 04/02/95.

Scheduled date for restart following refueling.

06/21/95.

Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

No.

Scheduled date for submitting proposed licensing action and supporting Information.

N/A.

Important Licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, and new operating procedures.

~

N/A.

The number of fuel assemblies.

b) In the spent fuel storage pool.

'V.

Intended change in spent fuel storage capacity. ~~

Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.

2005 (18 Month reloads and full core discharge capability).

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO. SLAG UNIT NAME MHGM DATE 95L1QEC COMPLETED BY MMGklQKl 04/01 0000 Unit began the month in Mode 1, 86% RX power 04/10 1203 Commenced plant downpower due to a control rod slip (CEA 36). COLSS declared inoperable.

04/10 1249 Stopped power decrease at 62%.

04/10 1810 Commenced RX power increase to 86% from 62% at 3% per hour following restoration of CEA 36.

04/11 0355 Stabilized RX power at 86%.

04/30 2400 Ended the month in Mode 1, 86% RX power.

SHUTDOWNS AND POWER REDUCTIONS April 1994 DOCKET NO UNIT NAME DATE 95LElR4 COMPLETED BY ~~g~

IEQIHHM Outage Method of Duration Shutting Down System Component Cause and Corrective Action No. Date Type" Hours Reason2 Reactor3 LER No. Code4 Code5 to Prevent Occurrence 94-02 04/10/94 F N/A A N/A N/A N/A Reduction of RX power to 62%

due to a control rod slip.

1F Forced 2Reason. 3Method: 4Exhibit F - Instructions for Preparation S-Scheduled A-Equipment Failure(Explain) 1-Manual of the Data Entry Sheets for Licensee 8-Maintenance or Test 2-Manual Scram Event Report (LER) File (NUREG0161)

C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Continuation from Previous Month E-Operator Training & License 5-Reduction of 20% or Greater in the Exhibit H-Same Source Examination Past 24 Hours F-Administrative 9-Other-(Explain)

G-Operational Error H-Other (Explain)

NRC MONTHLYOPERATING REPORT DOCKET NO. 59-'j29 UNIT NAME DATE 95Li9lK COMPLETED BY ELRZMIUQd

1. Unit Name: Palo Verde Nuclear Generating Station, Unit 2

2. Reporting Period: April 1994

3. Licensed Thermal Power(MWt): 3800

4. Nameplate Rating (Gross MWe): 1403

5. Design Electrical Rating (Net MWe): 1270

6. Maximum Dependable Capacity (Gross MWe): 1303

7. Maximum Dependable Capacity (Net MWe): 1221

8. If Changes Occur In Capacity Ratings (Item Numbers 3 Through 7)

Since Last Report, Give Reasons: N/A

9. Power Level to Which Restricted, If Any (Net MWe): None

10. Reasons For Restrictions, If Any: N/A

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;::>Cii'r'i'jiilitive'.:~:.':,.'.:j Ha'i'irs') n",.Repi'itfii9::.P 720 2,880 66,744 12 720.0 1,120.6 45,669.1 13 Re'a'ctcir, 0.0 0.0 0.0 14 720.0 1,075.7 44,755.6 15 0.0 0.0 0.0 16 2,333,826 3,280,459 163,114,704 17 821,400 1,142,300 56,805,270 18 NitgBf 765,969 1,044,173 53,164,207 19 100 0% 37.4% 67 1%

20 iinit'::A'vaI! 100 0% 37 4% 67 1%

21 Unit'::Ca'p'i'c'ftj!'Fact'a'r'l(Usiiig'.IN9Q,'Ne't)':,::;)h<)(,.3j,".:.');:;:::::::-:'=:,-:~.'",::,":;: 87.1% 29.7% 65 2%

22 Unjt: Ca'paiity",:,Factor::,:(Usiiig',DER':,Ni:t 83 8% 28 5% 62 7o/o 23 Uriit::::.Force'd;:.0'utagh: Rati:;,'{t~)jg '::;,';:;::jjjQ.,":::-,:'i;:..;::,:::':.::::,~>jj<~ij,:-'.;".; 0.0% 2.7% 6.0%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each): Mid'le outage scheduled to begin 9/17/94 with a 40 day duration.

25. If Shutdown At End of Report Period, Estimated Date of Start-up: N/A Forecast Achieved INITIALCRITICALITY QZK ML16lK INITIALELECTRICITY 96lK COMMERCIALOPERATION 12K

AVERAGE DAILYUNIT POWER LEVEL DOCKET NO. 54529 UNIT NAME E~iR2 DATE 95L19lK COMPLETED BY MMQklllQd IHRIBSBM MONTH: April 1994 DAY AVERAGE DAILYPOWER LEVEL DAY AVERAGE DAILYPOWER LEVEL 1076 17 1073 1072 18 1075 1072 19 1074 1075 20 1072 1076 21 1069 6 1074 22 1071 1071 23 1079 1069 24 1081 1075 25 1080 10 1074 26 1080 1071 27 1080 12 1075 28 1078 13 1077 29 1077 14 1076 30 894 15 1075 '1 16 1072

t REFUELING INFORMATION DOCKET NO. $ 452R UNIT NAME MHG.R2 DATE QGQQLR4 COMPLETED BY jLh'MGkllllKl IHRIBSBM Scheduled date for next refueling shutdown.

The 5th refueling outage is scheduled for 02/01/95.

Scheduled date for restart following refueling.

04/22/95.

Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

A change ~ be required to Technical Specification 3.9.6 to raise the overload cutoff limit to accommodate the new fuel assembly modification. Also, Technical Specification Section 6.9.1.10 will be modified to add the new Inlet Flow Distribution methodology.

Scheduled date for submitting proposed licensing action and supporting information.

10/27/94.

Important Licensing considerations associated with refueling, e.gnew or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, and new operating procedures.

The fuel assembly will consist of a denser fuel pellet, Erbium burnable absorber and guardian grid. A primary temperature drop of 10' is currently planned.

a) Inrhe cere. ~

The number of fuel assemblies.

b) In the spent fuel storage pool. ~~

Licensed spent fuel storage capacity." ~29 Intended change in spent fuel storage capacity. ~Op Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.

2005 (18 Month reloads and full core discharge capability).

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO. QL529 UNIT NAME 22HGR2 DATE GOLEM COMPLETED BY EL'MQkllEKl IEKBRBH hgriL1994 04/01 0000 Unit began the month in Mode 1, 86/o RX power.

04/30 0600 Commenced RX power reduction for SG chemical hideout test.

04/30 1030 Stabilized RX power at 51 /o.

04/30 1335 Commenced increasing RX power to 85/o.

04/30 1802 Stabilized RX power at 86 lo.

04/30 2400 Ended the month in Mode 1, 86/o RX power.

SHUTDOWNS AND POWER REDUCTIONS April 1994 DOCKETNO UNIT NAME DATE 95L19LK COMPLETED BY 9 l~~g Outage Method of Duration Shutting Down System Component Cause and Corrective Action Date Type" Hours Reason2 Reactor3 LER No. Code4 Code5 to Prevent Occurrence 94-03 04/30/94 N/A N/A N/A N/A RX power reduction for SG chemical hideout test.

1F Forced 2Reason: 3Method: 4Exhibit F - Instructions for Preparation S-Scheduled A-Equipment Failure(Explain) 1-Manual of the Data Entry Sheets for Licensee B-Maintenance or Test 2-Manual Scram Event Report (LER) File (NUREG0161)

C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Continuation from Previous Month E-Operator Training 8 License 5-Reduction of 20% or Greater in the Exhibit H-Same Source Examination Past 24 Hours F-Administrative 9-Other-(Explain)

G-Operational Error H-Other (Explain)

NRC MONTHLYOPERATING REPORT DOCKET NO. tHH39 UNIT NAME MbEiR2 DATE QGQER4 COMPLETED BY

1. Unit Name: Palo Verde Nuclear Generating Station, Unit 3

2. Reporting Period: April 1994

3. LicensedThermalPower(MWt): 3800

4. Nameplate Rating (Gross MWe): 1403

5. Design Electrical Rating (Net MWe): 1270

6. MaximumDependable Capacity(Gross MWe): 1303

7. Maximum Dependable Capacity (Net MWe): 1221

8. If Changes Occur In Capacity Ratings (Item Numbers 3 Through 7)

Since Last Report, Give Reasons: N/A

9. Power Level to Which Restricted, IfAny (Net MWe): None

10. Reasons For Restrictions, If Any: N/A

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l,';:KCumUlatljj'.>%-',.':

11. HaurslnrrRiip~o'ittiijj,:Perio'd. 'r'~::I: 720 2,880 55,320 12 H'aiirs,."Reicta'r,',w'as'::,::C'rltlcaI,::".,"'j';:;~~!'":.':>'::i'.::>PI'"."I 0.0 1,848.6 40,864.5 13 R'ea'chr,:,'Res'e'ivi';8'h'utdc'iw'ii: H'ai'i'res~~!:.j!.:.-'!ll ~"li".:'.-'r'.",".!:.'::,'.:;'"N 0.0 0.0 0.0 14 Haiirs.,'6'ii'n'erarta'res;:Oiilb'I'neil:;.',j:,:'1:,""I.".."ajN:: I,',:: INyp<g g::,',::;;i 0.0 1,848.6 40,272.7

15. Uiiit'.:Referl'rd':;8fiMt 0.0 0.0 0.0 5,995,571 146,666,831 17 Gjo's's'gl'e'cd)i'a);::8'I%'erg'y';,QerIe'rate'0:'::,(lNWH)~,:".:;;.)j~~' 0 2,120,500 51,342,400

18. Met EIe'n3rtneIEn'erjy:,':;:Geiierereedi(ININH),:,";:::;:,':,::ii~p 0 1,976,048 48,274,269 19 Uriitm8e'rvlc'e;:Fictai.',g/o) ~%"'i':4</'i:::::::::~'l:::::::: '"'-"'ig%~m":"':-"'i'1. 0.0% 64.2% 72.8%

20 0.0% 64.2% 72.8%

Uiijt'C'ijiicitjj,":,Farct'ar,.'(UsingIMDQ;,:;,Net)'::I',:,'::::::::::::>0;= p.p 56.2% 71 5%

22. Uiiit::;:C'a'pacitj;::,Facfa'r,':(tjiing:,:, p.p 54 P% 68.7%

23 pp p.p 6.6%

24 Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each): 4th Refueling outage began March 19, 1994. 80 days duration.

25. If Shutdown At End of Report Period, Estimated Date of Start-up: 06/07/94 Forecast Achieved INITIALCRITICALITY QZLQZ iGL226Z INITIALELECTRICITY QZIGZ COMMERCIALOPERATION QBLCZ I-I AVERAGE DAILYUNIT POWER LEVEL i

DOCKET NO. 59-'539 UNIT NAME MHGR2 DATE 95L10LK4 COMPLETED BY fLG~R!lHEl MONTH: April 1994 DAY AVERAGE DAILYPOWER LEVEL DAY AVERAGE DAILYPOWER LEVEL 17 18 19 20 21 22 23 25 10 26 27 12 28 13 29 14 30 15 31 16

REFUELING INFORMATION DOCKET NO.

UNIT NAME

~}

MbtGR2 DATE QGL1EK4 COMPLETED BY MM&lllQd IHRIaadM Scheduled date for next refueling shutdown.

03/19/94, 4th refueling.

Scheduled date for restart following refueling.

06/07/94.

Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

At present, four Tech. Spec. changes are in process. One for increasing the radially averaged weight percent of U235 in fuel rods to 4.30w/o. The other is to change the DNBR setpoint limit from 1.24 to 1.30. These are generic Tech. Spec. changes, and will be implemented on a Unit by Unit basis, beginning with U3C5.

Also, there are two other Tech. Spec. changes that will allow U3C5 to operate at 100% power due to the steam generator issues.

Scheduled date for submitting proposed licensing action and supporting information.

The fuel enrichment change was submitted in October 1993 and the DNBR setpoint change was submitted in January 1994.

Important Licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, and new operating procedures.

U3C5 will incorporate a new higher maximum enrichment level of 4.30w/o U235 and will also utilize a new integral burnable absorber, Erbium.

The NRC granted a license amendment (No. 35) which allows the use of 80 fuel rods clad with advanced zirconium based alloys (other than Zircaloy4) in two fuel assemblies during Unit 3 Cycles 4, 5, and 6 for in-reactor

~

performance evaluation. Date of issuance was July 20, 1992.

The number of fuel assemblies.

b) In the spent fuel storage pool.

iV.

Intended change in spent fuel storage capacity.

Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.

2005 (18 Month reloads and full core discharge capability).

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO. 59-'QQ UNIT NAME ~HG.M DATE Q5L1QLK4 COMPLETED BY MME!DEKE IRUShllU hariL1996 04/01 0000 Unit began the month in Mode 6, refueling outage in progress and fuel-off load in progress.

04/02 0328 Core off-load complete, exited Mode 6.

04/30 0545 Commenced core re-load, entered Mode 6.

04/30 2400 Unit ended the month in Mode 6, refueling outage in progress and fuel re-load continuing.

SHUTDOWNS AND POWER REDUCTIONS April 1994 DOCKET NO UNIT NAME DATE Q~/i&4 COMPLETED BY ~Bg~l fEIIRhKH Outage Method of Duration Shutting Down System Component Cause and Corrective Action Date Type" Hours Reason2 Reactor3 LER No. Code4 Code5 to Prevent Occurrence 94-01 03/19/94 S 720.0 N/A N/A N/A Continuation of 4th refueling outage from previous month.

1F Forced 2Reason: 3Method: 4Exhibit F - Instructions for Preparation S-Scheduled A-Equipment Failure(Explain) 1-Manual of the Data Entry Sheets for Licensee B-Maintenance or Test 2-Manual Scram Event Report (LER) File (NUREG0161)

C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Continuation from Previous Month E-Operator Training & License 5-Reduction of 20% or Greater in the Exhibit H-Same Source Examination Past 24 Hours F-Administrative 9-Other-(Explain)

G-Operational Error H-Other (Explain)