ML17306B037

Monthly Operating Repts for Sept 1992 for PVNGS Units 1,2 & 3

ML17306B037
Person / Time
Site:	Palo Verde
Issue date:	09/30/1992
From:	Ecklund B, James M. Levine ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
254-02207-JML-B, 254-2207-JML-B, NUDOCS 9210150391
Download: ML17306B037 (31)

Text

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ACCESSIQN %BR:9210150391 DOC.DATE: 92/09/30 NOTARIZED: NO DOCKET ¹ 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.E.

Arizona..Public Service Co. (formerly Arizona Nuclear Power LEVINE,J.M.

Arizona: Public Service Co. (formerly Arizona Nuclear Power R

RECIP.NAME RECIPIENT AFFILIATION I

SUBJECT:

Monthly operate.ng repts for Sept 1992 for PVNGS units 1,2 6

3.W/921013 ltr..

DISTRIBUTION CODE:

ZEZ4D.

COPIES RECEIVED:LTR ENCL

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SIZE:

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TITLE: Monthly Operating Report (per Tech Specs)

NOTES:STANDARDIZED PLANT Standardized plant.

Standardized plant.

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05000528 05000529 A

05000530 D

RECIPIENT ID CODE/NAME PD5 LA TRAMMELLi C COPIES LTTR ENCL 3

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1 RECIPIENT ID CODE/NAME PD5 PD COPIES LTTR ENCL 1

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NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK.

ROOM PI-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

S TOTAL NUMBER OF COPIES REQUIRED:

LTTR 24 ENCL 24

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Arizona Public Service Company PALO VERDE NUCLEAR GENERATING STATION P.O. BOX 52034

~

PHOENIX, ARIZONA85072-2034 JAMES M. LEVINE VICE PAESIDENT NUCLEAR PAODUCTION 254-02207-JML/BSE October 13, 1992 U. S. Nuclear Regulatory Commission ATlN: Document Control Desk Mail Station P1-37 Washington, DC 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Units 1, 2, and 3 Docket Nos. STN 50-528/529/530 Monthly Operating Reports for September 1992 File: 92-024-404 92-056-026 Enclosed are the Monthly Operating Reports for September

1992, prepared and submitted pursuant to Specification 6.9.1.6 of Appendix A (Technical Specifications) to the PVNGS Units 1, 2, and 3 Operating Ucenses.

By copy of this letter, Arizona Public Service Company is also forwarding the Monthly Operating Reports to the Regional Administrator, NRC Region V.

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

Sincerely, JMUBSE/gez Enclosures CC:

(all w/enclosures)

J. B. Martin A. C. Gehr A. H. Gutterman NRC Senior Resident Inspector INPO Records Center Utility Data Institute 9210150391 920930 PDRI ADOCK 05000528 R

PDR

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NRC MONTHLY OPERATING REPORT DOCKET NO.

50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY B S

Ecklund OPERATING STATUS 1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

Unit Name:

Palo Verde Nuclear Generatin Station Unit 1 Reporting Period:

Se tember 1992 Licensed Thermal Power (MWt):

3800 Nameplate Rating (Gross MWe):

1403 Design Electrical Rating (Net MWe):

~12 0 Maximum Dependable Capacity (Gross MWe): 1303 Maximum Dependable Capacity (Net MWe):

1221 If Changes Occur In Capacity Ratings (Item Numbers 3 Through 7)

Since Last Report, Give Reasons:

N A Power Level to Which Restricted, If Any (Net MWe):

None Reasons For Restrictions, If Any:

N A 0+~ a'>i@8$ <8$@<NN%><?<N;KxN45a."?XK~r,,"CSN'%RE%"'rj~<-"x<ax%$M<Na>;x>::>:!a.".'r.<<+

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720 669.6 0.0 669.6 0.0 2,545,283 881,400 831,757 93.0a 93.0s 94.6S 91.0%

7.0%

6,576 3,972.0 0.0 3,888.2 0.0 13,993,045 4,828,000 4,525,533 59.1a 59.la 56.4a 54.2s 7.7%

58,512 33,031.1 0.0 32,210.3 0.0 117,857,301 40,876,700 38,350,325 55.0s 55.0%

53.7%

51.6s 18.9a

! yy 25'fShutdown At End of Report Period, Estimated Date of Start-up:

10 2 92 INITIALCRITICALITY INITIALELECTRICITY COMMERCIAL OPERATION Forecast

~05 85 06 85 11 85 Achieved 05/525 85 06 10 85 01 28 86 1-

AVERAGE DAILYUNIT POWER LEVEL DOCKET NO.

50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY B.

S. Ecklund MONTH:

September 1992 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1252 17 1243 1251 18 1245 1251 19 1231 125 20 123 1253 21 1237 1252 22 1239 1250 23 1240 1250 24 1244 1250 25 1245 10 1252 26 1249 1251 27 1250 12 1246 28 1117 13 1244 29 1244 30 15 1242 16 1240

~ t

REFUELING INFORMATION DOCKET NO.

50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY B S

Ecklund Scheduled date for next'efueling shutdown.

09/15/93, 4th refueling Scheduled date for restart following refueling.

12/04/93 Vill refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

The need for a Technical Specification change or other license amendment has not yet been determined.

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.

a)

In the core.

241 b)

In the spent fuel storage pool.

26 Licensed spent fuel storage capacity.

1329 Intended change in spent fuel storage capacity.

None Pro]ected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.

2004 (18 Month reloads and full core discharge capability).

3

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.

50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY B S

Ecklund Se tember 1992 09/01 0000 Unit began the month in Mode 1; 1008 Reactor Power.

09/28 2137 Entered Mode 3 when turbine tripped due to the partial actuation of subsynchronous auxiliary relay.

The reactor tripped approximately 17 seconds later on high pressurizer pressure.

The partial actuation of the subsynchronous auxiliary relay was caused by touching an AC soldering iron to the energized 125VDC alarm circuit during performance of corrective maintenance.

09/30 2400 Ended the month in Mode 3.

4

SHUTDOWNS AND POWER REDUCTIONS September 1992 DOCKET NO 50-528 UNIT NAME PVNGS-1 DATE COMPLETED BY B. S. Ecktund No.

Outage Method of Duration Shutting System Date Type Hours Reason Down Reactor LER No.

Code Cause and Corrective Component Action to Code~

Prevent Recurrence 92-03 09/28/92 F

50.4 H

N/A N/A N/A RX trip on high pressurizer pressure following turbine trip due to actuation of subsynchronous relay.

See previous page for explanation.

~F-Forced S-Scheduled

~Reason:

A-Equipment Failure(Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & License Examination F-Administrative G-Operational Error H-Other (Explain)

~Method:

1-Manual, 2-Manual Scram 3-Automatic Scram 4-Continuation from Previous Month 5-Reduction of 20$ or Greater in the Past 24 Hours 9-Other-(Explain)

~Exhibit F-Instructions for Preparation of the Data Entry Sheets for Licensee Event Report (LER) File (NUREG 0161)

~Exhibit H-Same Source 5

1

AVERAGE DAILYUNIT POWER LEVEL DOCKET NO.

50-529 DATE COMPLETED BY B.

S Ecklund MONTH:

September 1992 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1245 17 1058 1245 18 1152 1 46 19 1231 1 46 20 1235 124 21 1090 1246 22 1158 124 23 1241 1245 1243 1245 1242 10 1 43 26 1243 1 4 27 1246 12 1240 28 1243 13 123 29 1237 14 1236 30 1238 15 1235 16 1222

REFUELING INFORMATION DOCKET NO.

50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY B S

Ecklund Scheduled date for next refueling shutdown.

03/19/93, 4th refueling Scheduled date for restart following refueling.

06/07/93 Vill refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

i Yes.

A change to the moderator temperature coefficient curve in the Technical Specification is anticipated as a result of the next refueling.

Additionally, the modification to the fuel pellet design (refer to Item 5) will increase the maximum total weight of the fuel rod.

Scheduled date for submitting proposed licensing action and supporting information.

12/21/92 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.

Minor modifications to the fuel pellet design (dimensional and density changes) will be incorporated into the Unit 2, Cycle 5 reload.

The number of fuel assemblies.

a)

In the core.

241 b)

In the spent fuel storage pool.

288 Licensed spent fuel storage capacity.

1329 Intended change in spent fuel storage capacity.

None Pro]ected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.

2004 (18 Month reloads and full core discharge capability).

8

t t

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.

50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY B.

S Ecklund Se tember 1992 09/01 09/16 09/16 0000 2315 2355 Unit began the month in Mode 1; 100$

RX power.

Commenced reactor power reduction due to COLSS being inoperable.

Reactor power at 78$.

09/17 09/17 09/17 09/17 09/17 09/18 09/18 09/18 0535 0822 1454 1747 1957 0013 0751 1030 Commenced power increase to 100%.

Stopped reactor power increase at 86% for Heater Drain Pump B oil change.

Reactor power returned to 100%.

Commenced reactor power reduction due to COLSS being inoperable.

Stopped reactor power reduction at 78%.

Commenced reactor power ascension to 85%.

Commenced reactor power ascension to 100%.

Reactor power at 100%.

09/21 1124 Commenced reactor power reduction to 78%

due to COLSS being inoperable.

09/21 09/22 09/22 09/30 1204 0500 0823 2400 Stopped power reduction at 78%.

Commenced reactor power ascension to 100%.

Reactor power at 100$.

Ended the month in Mode 1, 100% reactor power.

9

~ ~

SHUTDOWNS AND POWER REDUCTIONS September 1992 DOCKET NO 50-529 UNIT NAME PVNGS-2 DATE COMPLETED BY B.

S Ecktund No.

Outage Method of Duration Shutting System Date Type Hours Reason Down Reactor LER No.

Code Component Code Cause and Corrective Action to Prevent Recurrence 92-05 09/16/92 F

N/A N/A N/A N/A RX power reduced to 78% due to loss of COLSS.

92-06 09/17/92 F

N/A N/A N/A N/A RX power reduced to 78% due to loss of COLSS.

92-07 09/21/92 F

N/A N/A N/A N/A RX power reduced to 78% due to loss of COLSS.

~F-Forced S-Scheduled

~Reason:

A-Equipment Failure(Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & License Examination F-Administrative G-Operational Error H-Other (Explain)

~Method:

1-Manual 2-Manual Scram 3-Automatic Scram 4-Continuation from Previous Month 5-Reduction of 20% or Greater in the Past 24 Hours 9-Other-(Explain) 4Exhibit F-Instructions for Preparation of the Data Entry Sheets for Licensee Event Report (LER) File (NUREG 0161)

~Exhibit H-Same Source h

~ +

AVERAGE DAILYUNIT POWER LEVEL DOCKET NO.

50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY B S

Ecklund MONTH:

September 1992 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1188 17 986 18 952 1125 19 1123 20 1112 21 101 22 1086 23 1083 24 1081 25 10 10 5

26 1059 27 12 1044 28 13 1033 29 1027 30 15 1014 16 994

REFUELING INFORMATION DOCKET NO.

50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY B S

Ecklund aMl 1 ~

2.

Scheduled date for next refueling shutdown.

The third refueling outage began on September 19, 1992.

Scheduled date for restart following refueling.

12/08/92 3.

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

4, There are no Technical Specification changes associated with this reload.

Scheduled date for submitting proposed licensing action and supporting information.

N/A 5.

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.

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

and 6 for in-reactor performance evaluation.

Date of issuance was July 20, 1992.

6.

The number of fuel assemblies.

a)

In the core.

241

• b)

In the spent fuel storage pool.

192

• 7.

Licensed spent fuel storage capacity.

1329 Intended change in spent fuel storage capacity.

None 8.

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).

• The figures in 6,a and 6.b reflect fuel assembly locations at the beginning of the month.

At the end of the month, the reactor was in the process of being defueled in accordance with the PVNGS refueling procedure.

13

0 t

l t

I

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.

50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY B.

S Ecklund Se tember 1992 09/01 09/Ol 09/18 09/19 09/19 09/20 09/25 09/30 0000 0100 2100 0056 2001 0454 1043 2400 Unit began the month in Mode 1; 1008 RX power.

Commenced end of fuel cycle power coast down.

Commenced power reduction to 20% from 81% to trip reactor for the refueling outage.

Tripped reactor from 23% reactor power.

Entered Mode 3.

Unit entered Mode 4.

Unit entered Mode 5.

Unit entered Mode 6.

Ended the month in Mode 6.

14-

SHUTDOWNS AND POWER REDUCTIONS September 1992 DOCKET NO 50-530 UNIT NAME PVNGS-3 DATE COMPLETED BY B.

S. Ecklund No.

Outage Method of Duration Shutting System Date Type Hours Reason Down Reactor LER No.

Code Cause and Corrective Component Action to Code~

Prevent Recurrence 92-06 09/19/92 S

287.1 N/A N/A N/A RX manually tripped as unit entered

-third refueling outage.

~F-Forced S-Scheduled

~Reason:

~Method:

A-Equipment Failure(Explain) 1-Manual B-Maintenance or Test 2-Manual Scram C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Continuation from E-Operator Training & License Previous Month Examination 5-Reduction of 20$ or F-Administrative Greater in the Past G-Operational Error 24 Hours H-Other (Explain) 9-Other-(Explain)

'Exhibit F-Instructions for Preparation of the Data Entry Sheets for Licensee Event Report (LER) File (NUREG 0161)

~Exhibit H-Same Source 15