ML17310B216

Monthly Operating Repts for Mar 1994 for PVNGS Units 1,2 & 3

ML17310B216
Person / Time
Site:	Palo Verde
Issue date:	03/31/1994
From:	Ecklund B ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17310B215	List: ML17310B214 ML17310B216
References
NUDOCS 9404180395
Download: ML17310B216 (17)

Text

I NRC MONTHLYOPERATiNG REPORT t

DOCKET NO. 52525 UNIT NAME DATE 22~

MOD COMPLETED BY MMG!~

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

2. Reporting Period: March 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, IfAny (Net MWe): None

10. Reasons For Restrictions, If Any: N/A 744 2,160 71,640 744.0 2,160.0 44,117.4

13. Rea'star,::Re's'e'rv'e:::,,8hiitdaw'ri";:.'Haiirs':,'::.::,::,',:i 0.0 0.0 0.0

14. Hai'i'rs,:0'e'iie rata 744.0 2,160.0 43,159.9

15. UiiIt':Reserve':;Shiitdo'w j,HS6 0.0 0.0 0.0

.'eigg.'.Ir.'.qg;;:::::<.:........'.......!::~m@e;: ':::::!.::!PF::.~!<4~~."-'-':i""%tP~"4@8MY4)

16. 6rissjTh'i:rmiI';Kiiergy",'Ge'i'ierate'di/MNlH)<j:.:;.!':.Impga;;:.,'7.

2,397,621 6,969,924 156,000,472 6'ra'ss.:Ele'ctjicat,::Ei)erg'.:,'Geii'excited:.::(lNWH): 838,000 2,449,800 54,104,400

18. Net::;Efeckri~'~l:::,,E'rI'erg j. 784,102 2,294,736 50,753,097

19. Uriit::.'8 100.0% 100 0% 60.2%

100.0% 100 0% 60.2%

21. U'nit".Cap)'i".ibj.';:F,'acta'i':,;(0'iin'g'!I 86.3% 87 0% 58.0%

22. UIIIt:::::.C'i'pa'citjj'.Fjctai.'.(U'sliig':,0 83 0% 83 7% 55 8%

23. U'rii,t f ore'e.'d:::; 0.0% 0.0% 15.1%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each): N/A

25. If Shutdown At End of Report Period, Estimated Date of Start-up: N/A Forecast Achieved INITIALCRITICALITY Q5I25LK 95'QLLi INITIALELECTRICITY COMMERCIAL OPERATION 12K 94Oe<aO395 qjpiia 5OOO528 PgR AgQCK 05

AVERAGE DAILYUNIT POWER LEVEL DOCKET NO. QL529 UNIT NAME LVHG.R1 DATE MLQGLK COMPLETED BY MMQklLlQ5l MONTH: March 1994 DAY AVERAGE DAILYPOWER LEVEL DAY AVERAGE DAILYPOWER LEVEL 1083 17 1073 1083 18 1075 1083 19 1072 1079 20 1072 622 21 1072 988 22 1075 1077 23 1078 1077 24 1078 1077 25 1078 10 1078 26 1075 1079 27 1074 12 1079 28 1074 13 1078 29 1074 14 1076 30 1071 15 1075 31 1076 16 1074

REFUELING INFORMATION DOCKET NO.59-529 UNIT NAME ~59~

DATE HLQEK COMPLETED BY 9 'MQkllKLC laRIRMW 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?

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.

Licensed spent fuel storage capacity.

Intended change in spent fuel storage capacity. ~!le 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. ~25 UNIT NAME DATE EL~

MQEK COMPLETED BY 9 l~GklLIQC 03/01 0000 Unit began the month in Mode 1, 86 RX power.

03/04 2300 Commenced power decrease to 50% for steam generator cleanup and extraction drain pump "A" maintenance.

03/05 0659 Stabilized RX power at 51%.

03/06 0030 Began power increase from = 51% to 86%.

03/06 0915 Stabilized RX power at 86%.

03/31 2400 Unit ended the month in Mode 1, 86% RX power.

SHUTDOWNS AND POWER REDUCTIONS March 1994 DOCKET NO $ 4526 UNIT NAME ~VGS='L DATE g4I(~I/

COMPLETED BY ~BF~~I ilP2MtSR 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 94-01 03/04/94 34.3 N/A N/A N/A Reduction of RX power to 51%

for steam generator cleanup and extraction drain pump "A" maintenance.

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. ~29 UNIT NAME MHGR2 DATE MlQBLR4 COMPLETED BY EUMQklUQSf 1 Unit Name: Palo Verde Nuclear Generating Station, Unit 2 2 Reporting Period: March 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

[g<'TliiefMeiifh!!;:;:,':::,::kl;:.',:::Yi",:;:fee O'efe",:."..">p~ ;,':".,:;:::,:CMm)itatlvem~::,"::;.,":j 744 2,160 66,024 232.0 400.6 44,949.1 13.

14 Ha'ure',;,,'0'e'i'i'e'ratar misQii-.,'87.1 geaota'r,;;pe'S'erv8,.S fl,uga~,::Ha3eram!Y:;;:":":(::>;'4-~:m4p:~:"g:"-:>

Unit:Ri'sepia'::8h'utjaw'n';:Ha'urs~):

0.0 0.0 355.7 0.0 0.0 44,035.6 0.0 0.0 15 16 Gro'ss:.',Ther'mat,:EiiirjySe'n'i rated<(MWH);;::"::,:,::j(g~ 411,841 946,633 160,780,878

17. GereassEte'r'tihaJ'6iii r'gey'6'enerate'dl/MNH)";:,".,';':~!;.::':~":,:::LP:,':: 134,000 320,900 55,983,870 18 Neetf6f'e'c'trtcat,:::Eries 109,153 278,205 52,398,239 jy,::6i'i'ierated..'(NINH):,'-,'.::j!:'-:,~",,;:;:">:"",..'.'nit":8ervlc'O',:.Facfcir:('lo)':.':,:':!i~)i::-,':!;,::!:':::,;::,.:::::!!:::,"::;:~

19 25 1% 16.5% 66.7%

20 25 1% 16 5% 66.7%

12.0 10 5% 65 0%

22. Ujjlt:::;Capi'citjjFaota'i;."(Usln6:;GER.:Net).':;:::.';:::;::;:::;:fj;g-~:,:::.,':!:; 11.6% 10 1o/o 62.5%

23. UiiIt,':Farci.'d~'0'uta ji:::.Rat 13 7% 6.1%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date and Duration of Each): NIA

25. If Shutdown At End of Report Period, Estimated Date of Start-up: NIA Forecast Achieved INITIALCRITICALITY 93lK MLNQ5 INITIALELECTRICITY Q6LK COMMERCIAL OP ERATION 12K AVERAGE DAILYUNIT POWER LEVEL DOCKET NO.59-529 UNIT NAME EEKiR2 DATE QdQELR4 COMPLETED BY MMQ!5KKf MONTH: March 1994 DAY AVERAGE DAILYPOWER LEVEL DAY AVERAGE DAILYPOWER LEVEL 17 18 19 20 21 22 23 125 24 239 25 186 10 26 27 400 12 28 140 13 29 1064 14 30 1071 15 31 1076 16

REFUELING INFORMATION DOCKET NO. ~29 UNIT NAME DATE ALGER COMPLETED BY MM&lQ05l coerce 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 mgy. 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.

10/13/94.

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

~

The number of fuel assemblies.

et In the core.

b) In the spent fuel storage pool. ~5 Licensed spent fuel storage capacity. ~29 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).

l

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH t DOCKET NO. I 9-'j29 UNIT NAME EL5GR2 DATE QCQGLK COMPLETED BY EL5~klQEi 51gKltL1996 03/01 0000 Unit began the month in Mode 5, mid-cycle outage in progress.

03/15 2013 Entered Mode 4.

03/19 1519 Entered Mode 5.

03/21 1546 RX critical. Entered Mode 2.

03/22 0000 Entered Mode 1.

03/22 2309 Synchronized main turbine/generator to the grid.

03/23 0310 Commenced plant power increase from 13/o to 18/o.

03/23 0350 RX power at 20/o. Downcomer swap over did not occur. Commenced RX power reduction to 14'/o.

03/24 0400 At 17/o plant power swap over of SG01 Feedwater Control System occurred. RX power stabilized at 17/o.

03/23 0440 Commenced plant power reduction to 13/o to investigate problem with Feedwater Control System.

03/23 0525 Stabilized RX power at ~ 13'/o.

03/23 1530 Commenced raising RX power to 18.5'/o after repairing a broken wire in the Feedwater Control System cabinet.

03/23 =1800 Stabilized RX power at 18.5/o.

03/23 2135 Commenced increasing RX power to 29.5'/o.

03/24 0445 Stabilized RX power at 29. /o /o.

03/25 1802 Commenced RX power reduction to 20/o for RX shutdown due to RCP 1A oil leakage from a loose fitting.

03/25 1815 Manually tripped RX from the Control Room. Entered Mode 3.

03/26 0853 Commenced RX start-up after the fitting on RCP 1A was tightened.

03/26 1028 RX critical. Entered Mode 2.

03/26 1222 Entered Mode 1.

03/26 1530 EHC PMG +24V power supply drifted low. Plant management decided to replace the power supply before continuing with startup.

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH (Con't)

March 1994 03/26 1714 Commenced power reduction to 8/o.

03/26 1800 Stabilized RX power at 8'/o.

03/26 2357 Synchronized main turbine/generator to the power grid. Commenced power ascension to 85/o RX power at 3/o per hour. Stopped power ascension as necessary to perform operational surveillance testing and high rate SG blowdown.

03/28 1134 RX power stabilized at 85/o.

03/30 1020 Commenced RX power increase to 86/o.

03/30 1057 Stabilized RX power at 86/o.

03/31 2400 Unit ended the month in Mode 1, 86/o RX power.

-9a-

SHUTDOWNS AND POWER REDUCTIONS March 1994 DOCKET NO ~~9 UNIT NAME MbK&2 DATE +~/9 COMPLETED BY kg~in IRRRCHM 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 94-01 01/08/94 527.2 N/A N/A N/A Continuation of planned mid-cycle from previous month.

94-02 03/25/94 29.7 N/A N/A N/A Manually tripped RX to repair oil leakage from a loose fitting on RCP 1A.

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 5Exhibit H-Same Source Examination Past 24 Hours F-Administrative 9-Other-(Explain)

G-Operational Error H-Other (Explain)

NRC MONTHLYOPERATING REPORT DOCKET NO. ¹HQ UNIT NAME LVHRR2 DATE MLQ9lk4 COMPLETED BY ~MRS!LED IERIBSBM 1 Unit Name: Palo Verde Nuclear Generating Station, Unit 3 2 Reporting Period: March 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, Any: If N/A

.;:.,:>@This,':le'iith'::-:;:::,::,:.::,: @j,;:::Yfj':,tojPite':.',,'~@ Ni";::::;::::,Qimulat))i,',.-.',,-:;:

744 2,160 54,600 12 432.6 1,848.6 40,864.5 13 0.0 0.0 0.0 14 H'aii'is:.'.'0'eii'era'torw'i~,o)'i-::f.:I'i';:::::,jinni,."::::;:QIji~($

ji:::,':::;:,,':,:. 432.6 1,848.6 40,272.7 15 0.0 0.0 0.0 16 Gross';.'.Th'e'r'maf Eijergj,::,8'eiie'ra'ted;(NIWHPPP:,.;::.,",.ii.,':;(j~i.,.;":;. ~(i. 1,411,156 5,995,571 146,666,831 17 '8ro'ss.:"F,4'i'."t'iii',""'et!Kfe 499,000 2,120,500 51,342,400 18 462,290 1,976,048 48,274,269 19 UiiIt4ervirk:Fetor'('i':)':: '

::::@""::::":-""'-"'::::::'<<:~:.""""" 58.1% 85.6% 73.8%

20 58 1 85.6% 73 8%

21 "~@'0'ri'lt.:C 50.9% 74 9% 72.4%

22 48 9% 72.0% 69 6%

23 Untt':.F~rj'id-;;Oiit'ij'e!Rate:,'{/~)~.;,::,':.<..,'~;,; p.p pp 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 QZSZ Kl25$Z INITIALELECTRICITY QZLGZ COMMERCIALOPERATION QKQ7 AVERAGE DAILYUNIT POWER LEVEL DOCKET NO.59-539 UNIT NAME ELbLGR2 DATE QdLQGLK4 COMPLETED BY MMQRlUQSt MONTH: March 1994 DAY AVERAGE DAILYPOWER LEVEL DAY AVERAGE DAILYPOWER LEVEL 1088 17 1083 1085 1045 1089 19 1090 20 1084 21 1085 22 1086 23 1090 24 1085 25 10 1086 26 1088 27 12 1090 28 13 1090 29 14 1087 30 15 1087 31 16 1084

REFUELING INFORMATION DOCKET NO UNIT NAME 5~

2289M DATE MLQUlk4.

COMPLETED BY jL~hMQklLESl eeorere 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.gnew 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 Zlrcaloy<) in two fuel assemblies during Unit 3 Cycles 4, 5, and 6 for in-reactor performance evaluation. Date of issuance was July 20, 1992.

e) tn the core. ~

The number of fuel assemblies.

b) In the spent fuel storage pool.

Licensed spent fuel storage capacity.

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).

t

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH t

DOCKET NO.

UNIT NAME 5~

LVHGR2 DATE MLQGLK COMPLETED BY ~~I5IUM 03/01 0000 Unit began the month in Mode 1, 86% RX power.

03/18 2123 Commenced downpower in preparation for commencement of 4th refueling outage.

03/19 0034 Manually tripped RX with power at 21%. Entered Mode 3.

03/1 9 1303 Entered Mode 4.

03/20 0449 Entered Mode 5.

03/26 1505 Entered mode 6. The RX vessel head detensioned.

03/31 2400 Unit ended the month in Mode 6, with the 4th refueling outage in progress and fuel off-load in progress.

March 1994 DOCKET NO SL5K UNIT NAME PVNQ5-3.

DATE ~04I 8/94 COMPLETED BY ~B. EckI 0 Outage Method of Duration Shutting Down System Component Cause and Corrective Action No. Date Type" Hours Reason2 Reactor3 LER No. Code Code5 to Prevent Occurrence 94-01 03/19/94 S 311.4 C 2 N/A N/A N/A RX manually tripped to begin the fourth refueling outage.

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)