NL-88-1113, Monthly Operating Plant Status Rept for Sept 1988 for Rancho Seco

Monthly Operating Plant Status Rept for Sept 1988 for Rancho Seco

ML20204E775
Person / Time
Site:	Rancho Seco
Issue date:	09/30/1988
From:	Crunk S, Mueller M SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NL-88-1113, NUDOCS 8810210448
Download: ML20204E775 (7)

Text

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SEPTEMBER 196.8 SlM4ARY OF PLANT OPERATIONS Rancho Seco operated at the 80% power level until ascension to the 92% level which was reached at 0940 hours0.0109 days <br />0.261 hours <br />0.00155 weeks <br />3.5767e-4 months <br /> on September 17. A decrease in powcr to the 65% level began at 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br /> on September 30 and was reached at 2030 hours0.0235 days <br />0.564 hours <br />0.00336 weeks <br />7.72415e-4 months <br />.

This planned reduction in power was to perform maintenance on a Main Feedwater Pump.

4 PERSONNEL CHANGES REQUIRING REPORT There was one management change in September 1988 which requires reporting pursuant to Technical Specification Figure 6.2-2. Mr. Dennis Yows is Manager, Environmental Protection.

! Mr. Yows was involved in the areas of emergency planning and radiation 1 protection during the last 10 years while working for the Arizona Nuclear

. Power Project and Hestinghouse. He was previously employed as Manager, Emergency Planning and Fire Protection, Palo Verde Nuclear Generating Station where he had over 5 years experience in management in emergency planning. Mr. ,

Yows has a B.S. in Hildlife Biology from California State University Humboldt.

SlM1ARY OF CHANGES IN ACCORDANCE WITH 10 CFR 50.59 There were no documentation packages completed for facility changes, procedure changes, tests or experiments during September 1988.

MAJOR SAFETY RELATED MAINTENANCE, TESTS AND MODIFICATIONS NOT REQUIRING DETAILED SAFETY ANALYSES r

1. Mr.intenance was performed on the "A" TDI Diesel Generator, Hakeup Pump, "A" Decay Heat Pump, "B" Auxiliary Feedwater Pump, "B" Regenerant Holdup Tank, and the Nuclear Service Hater System. Vibration testing and monitoring was conducted on the "B" TOI Diesel Generator. Maintenance was i also conducted on the Bruce GM Diesels and the Control Room HVAC. i 1

2. ECN A-4194, Revision 0, installed an isolation valve in the Turbine Lube i Oi.i System to allow the Auxiliary 011 Centrifuge to operate on the feedwater Pump Turbine Sump and the Hain Lube Oil Centrifuge to operate on either Lube Oil Storage Tank without overfilling the Feed Pump Turbine Sump.

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3. ECN A-4577 Revision 0, added 10-inch extensions to the rails on the spent fuel side A and B upender structures to improve operation / reliability of the fuel transfer system.

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4. ECN A-5780, Revision 0, documents the addition of two Black Box Hodel 596 Error Controllers to the existing 9600 BPS modem link between the Rancho Seco plant computer and the Emergency Offsite facility HIDAS terminal.

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5. ECN R-3026, Revision 0, extended the existing heat trace and insulation applied to the RCS Leak Detection Radiation Monitor skid and return line to prevent condensation in the sample lines.

6. ECN R-1991, Revision 0, completed piping and support modifications associated with the TDI Diesels. ,

7. ECN R-2728 Revision 1, added sealant injection assemblies to the void l region between RCP gasket sealing surfaces and the pump bowl and stuffing  ;

box.

8. ECN R-3031A, Revision 0, replaced aftercooler E-901A union connections with flanges to comply with the HE pipe class requiremerts. l t

9. ECN R-3238, Revision 0, modified the connection to FIT-12002 in

• accordance with the vendor manual. .

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' i REFUELING INFORMATION REQUEST

1. Name of Facility Rancho Seco Unit 1

'2. Scheduled date for next refueling shutdown: July 1. 1989 4

3. Scheduled date for restart following refueling: August 29. 1989 ...

4. Technical Specification change or other license amendment required: l i  !

a) Change to Rod Index vs Power Level Curve (TS 3.5.2) (

b) Change to Core Imbalance vs Power Level Curve (TS 3.5.2) c) Tilt Limits (TS 3.5.2)

5. Scheduled date(s) for submitting proposed licensing action: January 15. 1989__

6. Important Itcensing considerations associated with refueling: N/A  !

7. Number of fuel assemblies: I r

i a) In the core: 177 i i

. b) In the Spent Fuel Pool: 316 ,

f i l 8. Present licensed spent fuel capacity: 1080 i

9. Projected date of the last refueling that can be discharged to l the Spent Fuel Pool: December 3. 2001 i i

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j AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-312 UNIT Rancho Seco Unit 1 i

DATE 9/30/88 COMPLETED BY __ Marla Mueller TELEPH(,HE (916) 452-3211 MONTH Sectember 1988

, DAY AVERAGE DAILY P0HER LEVEL DAY AVERAGE DAILY POWER LEVEL (We-Net) (We-Net) l l 1 623 17 745 L i

2 713 18 819  !

3 710 19 817 4 709 20 817

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5 710 21 817  ;

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i 6 716 22 820 l 1

7 716 23 827  :

8 715 24 822 .

9 724 25 824 .

j 10 722 26 828  :

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11 721 27 819

) 721 28 819 1 12  ;

I 13 723 29 824

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4 14 722 30 662  :

1 15 718 31 l ,_

j 16 723 ,

INSTRUCTIONS On this format. list the average daily unit power Ivvel in MWe-Net for each day in the reporting month. Capute to the nearest whole megawatt.

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- . . 4 OPERATING DATA REPORT DOCKET NO. 50-312 DATE 9/30/88 l

COMPLETED BY 'Marla Mueller l l TELEPHONE (916) 452-3211  !

OPERATING STATUS f

1. Unit Name: Rancho Seco Unit 1 Notes:

2. Reporting Period: September 1988  :

3. Licensed Thermal Power (MHt): 2.772 l

4. Nameplate Rating (Gross M e): .2fz3._  !

5. Design E'iectrical Rating (Net MHe): 918  !

6. Maximum Dependable Capacity (Gross MHe): 917  ;

i 7. Maximum Dependable Capacity'(Net MHe): 873 i I 8. If changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, ,

I Give Reasons: N/A ._

l 9. Power Level to Which Restricted. If Any (Net MHe): N/A l l

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

This Month Yr-to-Date Cumulative ,

11. Hours in Reporting Period 720 6.575 _ 117.919.__  !

12. Number of Hours Reactor Was Critical Z&Q_ 4,002.0 58,J E 0 f

13. Reactor Reserve Shutdown Hours 0 0 10.300J

14. Hours Generator On-Line 720.0 3.734.7 54J)S8. 5  :

15. Unit Reserve Shutdown Hours 0 0 1.21022__.

16. Gross Thermal Eergy Generated (MHH) 1.717.443 . S.014.155 1 E 875.843  !

17. Gross Flectrical Energy Generated (MHH) 531.520- 1.963.571 _43.486.768 _ i

18. Net Electrical Energy Generated (MHH) 547.642 _ 1.741.541 z 39.973.5f]  !

[ 19. Unit Service Factor 100L 56.8%= - 4519 L  !

l 20. Unit Availability Factor 100L 56.AL 46.9 L  !

21. Unit Capacity Factor Nsing MDC Net) 87.1L 30,3L 38.8% - 1

22. Unit Capacity Factor (Using DER Net) 82.9% 28.8L 35JL l

23. Unit Forced Outage Rate OL 36.5% _ 43.1%--  :

24. Shutdowns Scheduled Over Next 6 Honths (Type, Date, and Duration of Each)*

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35. If Shut Down At End Of Re' port Period, Estimated Date of Startup: N/A

26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved l INITIAL CRITICALITY N/A- N/A INITIAL ELECTRICITY *:l A _El]L__

COMMERCIAL OPERATION N/A __N/A l

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DOCKETNO. 50-31?

• UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Rancho seen DATE Santenhor V) 1933 COMPLETED BY M %t ur REPORT MONTH .4nt nA r 1933 TELEPHONE (916) 452-3211

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• • Cause A Corredive

- j? 'i *Ii Licensee 5% Action to

.W Ibic [ 3? f 3s& Event g1 vi0 O Prevent Re:verensc

- y6 2 j;f3 g Report a g ,_

9 38-09-30 S 6.0 B 1 N/A N/A N/A Perform maintenance on Main Feedwater Pump 3 4 t 2 Method: Exhibit C. insuuctions f F.=6cd Reason:

for Preparation of Data S Sthedules A-Equipment Failure (Explain) 1 Manual 244ammal Scrun.

Entry Sheets for Licensee B Maintenance ci Test C-RefacLag . 3-Aetematic Scrasa. Event Repos ILE R) File INUREG-D-Regdatory Restridion 44ther (Emplain) 01611 EOperator Training a Ucense Exansnation F-Administrative $

Coperational Esrur (Emplain) Exhibis 1 Same Sourec s em s flothes (Eupt2in)

Osuun SACRAMENTO MUNICIPAL UT1UTY CnSTRICT C P. O. Box 15830, Sacramento CA 95852 1830,(910) 452 3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA NL 88-1113 CCT 17 T388 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Hashington, DC 2055a Docket No. 50-312 Rancho Seco Nuclear Generating Station License No. OPR-54 OPERATING PLANT STATUS REPORT Attention: George Knighton Enclosed is the September 1988 Honthly Operating Plant Status Report for the Rancho Seco Nuclear Generating Station. The District submits this report pursuant to Technical Specification 6.9.3.

Sincerely.

tp9 . Crunk

[Ha ger Nuclear Licensing Enc 1 (5) cc: J. B. Martin, NRC, Halnut Creek INPO R. Twilley, Jr.

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RANCHO SECO NUCIEAR otNERATINo STATION O 1444o Ten Cities Road, Herald. CA 95038 9799;12o9: 333 2935