ML20137G290

Monthly Operating Rept for Jul 1985

ML20137G290
Person / Time
Site:	Rancho Seco
Issue date:	07/31/1985
From:	Colombo R, Reinaldo Rodriguez SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
RJR-85-402, NUDOCS 8508270256
Download: ML20137G290 (6)

Text

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4 JULY 1985

SUMMARY

OF PLANT OPERATIONS

.The plant has been in cold shutdown for plant modification for the entire month

'of July.

PERSONNEL CHANGES REQUIRING REPORT None SUfEARY OF CHANGES IN ACCORDANCE WITH 10 CFR 50.59(b)

None MAJOR ITEMS OF SAFETY RELATED MAINTENANCE

1. Existing high point vent piping and fittings from lines 20564-1" CA and 20555-1" CA were removed to prepare for the installation of new components.

The pipe spools were prefabricated and valves RCS-017, RCS-013, RCS-015, RCS-021, RCS-019 and RCS-060 were prepped for reinstallation.

2. DHS-060, the LPI to pressurizer spray isolation val ~ve, was disassembled and visually inspected to determine source of leakage. The body to bonnet gasket and packing were replaced.

3. During the performance of a surveillance procedure, auxiliary feedwater pump P-318 packing became excessively hot after a short operating period. Inboard and outboard stuffing boxes were repacked and the surveillance procedure was again unsuccessfully run. The pump was dismantled for rotor inspection.

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REFUELING INFORMATION REQUEST

1. Name of Facility Rancho Seco Unit 1

2. Scheduled date for next refueling shutdown: Sept 15, 1986

3. Scheduled date for restart following refueling: Jan 15.1987 1

4. Technical Specification change or other license amendment required:

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)  !

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5. Scheduled date(s) for submitting proposed licensing action: April 9. 1986 1

6. Important licensing considerations associated with refueling: N/A

7. Number of fuel assemblies:

a) In the core: 177 b) In the Spent Fuel Pool: 316

8. Present licensed spent fuel capacity: 1080

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

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-312 UNIT Rancho Seco Unit 1 DATE 07-31-85 COMPLETED 8Y R. Colombo TELEPHONE (916) 452-3211 MONTH July 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0 17 0 2 0 18 0 3 0 19 0 4 0 20 0 5 0 21 0 6 0 22 0 7 0 23 0 8 0 24 0 9 0 25 0 10 0 26 0 11 0 27 0 12 0 28 0 13 0 29 0 l 14 0 30 0 l

15 0 31 0 16 0 0

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

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OPERATING DATA REPORT DOCKET NO. 50-312 i DATE 07/31/85 COMPLETED 8Y R. Colombo l

TELEPHONE (916) 452-3211 j OPERATING STATUS NOTE:

1. Unit Name: Rancho Seco Unit 1

2. Reporting Period: July 1985

3. Licensed Thermal Power (MWt): 2.772 '

4. Nameplate Rating (Gross NWe): 963

'5. Design Electrical Rating (Net MWe): 918

6. Maximum Dependable Capacity (Gross MWe): 917 ,

7. Maximum Dependable Capacity (Net MWe): 873 l

8. If changes Occur in Capacity Ratings (Items Number 3 Through 7) Since last Report, j Give Reasons: N/A i

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

10. Reasons For Restrictions, If Any: N/A l This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 744 5.087 90.192

12. Number of Hours Reactor Was Critical 0 1.718.5_ 53.165.9

13. Reactor Reserve Shutdown Hours 0 1'".6 10.300.4

14. Hours Generator On-Line 0 1.618.2 49.281.7

15. Unit Reserve Shutdown Hours 0 0 1.210.2

16. Gross Thermal Energy Generated (MWH) 0 4.066.973 125.677.241

17. Gross Electrical Energy Generated (MWH) 0 1.366.847 40.798.810

18. Net Electrical Energy Generated (MWH) 0 1.289.988 37.881.184

19. Unit Service Factor 0.0% 31.81% 54.64%

20. Unit Availability Factor 0.0% 31.81% 55.98%

21. Unit Capacity Factor (Using MDC Net) 0.0% 29.05% 48.11%

22. Unit Capacity Factor (Using DER Net) 0.0% 27.62% 45.75%

23. Unit Forced Outage Rate 0.0% *8.8% *29.4%

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

N/A

25. If Shut Down At End Of Report Period Estimated Date of Startup:

• August 31. 1985

26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY N/A N/A COMMERCIAL OPERATION N/A N/A

• Corrected from June 1985 Monthly Report.

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DOCKET NO. 50-312 UNITSilUTDOWNS AND POWER REDUCTIONS UNIT NAME Rancho Seco Unit 1 DATE 7/31/85

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COMPLETED itY R. Colombo REPORTMONTil . JULY 1985 TELEl'IlONE (916) 452-3211 e.

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- EO "E **U Licensee Ew E*1, Cause & Corrective No. Date h j$ $ )':ch Event (i hO Action to H

f5 5 3 g c:

<- f, Report # in O u

o Prevent Recunence O

5 7/1/85 S 744 C 1 N/A ZZ ZZZZZZ Shutdown for Refueling I 2 3 -

4 F: Forced Reason: Method: Exhibit G -Instructions S: Scheduled A-Ik luipment Failure (Explain) 1-Manual for Preparation of Data ll M.iintenans.c of Test 2-Manual Scram. Entry Sheets for I.icensee C Refueling 3-Automatic Scram. Event Report (LliR) File (NUREG-D-Reit,ulatory itestriction 4-Other (Explain) 0161)

E.Operatin Training & License Examination F Ailministrative 5 G-Operational Error (Explain) Exhibit I - 5.iine Source (9/77) ll-Other(Explain)

esuu.SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street, P.O. Box 15830, Sacramento CA 95852-1830.(916) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA RJR 85-402 August 16, 1995 DIRECTOR OFFICE OF INSPECTION AND ENFORCEMENT U S NUCLEAR REGULATORY COMMISSION WASHINGTON DC 20555 OPERATING PLANT STATUS REPORT DOCKET N0.59-312 S A 310 Enclosed is the July 1985 Monthly Plant Status Report for Rancho Seco Unit

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hi R J RODRIGUEZ:

MANAGER, ASSISTANT NUCLEAR GENE (

ENC 5 cc: I & E Washington (9)

Region V MIPC (2)

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l RANCHO SECO NUCLEAR GENERATING STATION O 1444o Twin Cities Road, Herald, CA 95638-9799;(209) 333-2935