ML20041G484

Monthly Operating Rept for Feb 1982

ML20041G484
Person / Time
Site:	Rancho Seco
Issue date:	02/28/1982
From:	Colombo R SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML20041G479	List: ML20041G478 ML20041G484
References
NUDOCS 8203220363
Download: ML20041G484 (6)

Text

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SUR NY OF PLANT OPERATIONS 2-01 Reactor at 37% full power and increasing power.

005' rminated power increase at 38% full power due to loss of auto control on main feed pump Bailey controllers.

0715 Started increasing power.

0914 Unit at 100% full power.

2-05 0655 "B" main feed pump trip. Plant ran back to approximately 75% full power.

0736 Started increasing power.

1251 Unit at 100% full power.

2-17 0010 Reducing power at request of load dispatcher.

0230 Unit at 60% full power.

0430 Increasing power at request of load dispatcher.

1749 Unit at 100% full power.

2200 Reducing power at request of load dispatcher.

2338 Unit at 60% full power at request of load dispatcher.

2-18 1600 Unit at 58% full power at request of load dispatcher.

2-28 2359 Unit at 57% full power at request of load dispatcher.

_ PERSONNEL CHANGES REQUIRING REPORTING No personnel changes that require reporting in accordance with Technical Specifications Figure 6.2-2 were made in February,1982.

SUMMARY

OF CHANGES IN ACCORDANCE WITH 10 CFR 50.59(b)

No changes in accordance with 10 CFR 50.59(b) were made during the month of February,1982.

MAJOR ITEMS OF SAFETY RELATED MAINTENANCE 1.

Cleaned and lubricated trip mechanism of "A" a-c CRD breaker.

2.

Replaced corroded bonnet bolts on Demineralized Reactor Coolant Storage Tank.

3.

Placed RPS Channel C Pressure Test Module in test and checked input vs. computer output.

4.

Changed out oil in "B" HPI pump auxiliary lube oil pump.

5.

Repaired "B" Decay Heat Suction line anchors.

6.

Repaired SFAS logic test module.

7.

Replaced pressure guage on electrical penetration #50.

The following items were too late to include in the January Report:

8.

Repaired snubber 1SW-23823 on Seal Injection and Makeup System.

9.

Repaired snubber ISW-10' on Reactor Coolant System.

8203220363 820312 PDR ADOCK 05000312 R

PDR

MAJOR ITEMS OF SAFETY RELATED MAINTENANCE (Continued) 10.

Repaired snubber ISW-21028 on Reactor Coolant System.

11.

Repaired snubber ISW-21007-7 on Seal Injection and Makeup System.

12.

Repaired snubber ISW-21025-9 on Reactor Coolant System.

~

i REFUELING INFORMATION REQUEST h

i i

1.

Name of Facility:

Rancho Seco Unit 1 i

2.

Scheduled date for next refueling shutdown:

September 1982 i

3.

Scheduled date for restart following refueling:

March 1983 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)'

5.

Scheduled date(s) for submitting proposed licensing action:

July 1982 6.

Important licensing considerations associated with refueling:

None 7.

Number of fuel assemblies:

a) In the core:

177 b)

In the Spent Fuel Pool:

196 8.

Present licensed spent fuel capacity:

579 9.'

Projected date of the last refueling that can be discharged to the Spent Fuel Poo'l:

1987

1 i

s I

i OPERATING DATA REPORT DOCKET NO. 50-312 DATE 82-02-28 COMPLETED BY R. Colombo TELEPHONE (916) 457-3211 OPERATING STATUS

1. Unit Name:

Rancho Seco Unit 1 Notes

2. Reporting Period:

February 1982

3. Licensed Thermal Power 13thtn 2772

4. Nameplate Ratin;IGrms 31WeI:

963

5. Desian Electrical R: tin;(Net Albe):

9IO

6. Sf aximum Dependable Capacity e Gross 31We):

917

7. Sinimum Dependable Capacity qNet Sthe):

873

8. If Changes Occur in Capacity Ratings (Items Number 3 Throu;h 7) Since Last Report.Gise Reasons:

N/A

9. Power Lesel To which Restricted,if Any (Net 31We):

N/A

10. Reasons For Restrictions.lf Any:

N/A This 3!onth Yr.-to-Date Cumulative II. Hours in Reporting Period 672 1.416 60.217

12. NamSer Of liours Reactor Was Critical 672 1,408.6 36,645.2

13. Reactor Reserse Shutdown liours 0

0 6,458.6

14. flours G: aerator On-Line 672 1,360.7 35,131.1

15. Unit Resene Shutdown liours 0

0 1,210.2

16. Gross Thermal Energy Generated 131Wil) 1,537,034 3,412,455 89,307,567

17. Gross Electrical Ener;> Generated i\\lWil, 517.517 1,145,400 29,906,829

18. Net E!cetrica! Ener;y Generated 131Will 488.606 1.083.693 28,246,810

19. Unit Senice Factor 100%

96.0%

58.3%

20. Unit Asai: ability Factor 100%

96.0%

60.4%

21. Unit Capacity Factor (Usin; All'C Net) 83.3%

87.7%

53.7%

22. Unit Capacit3 Factor iUsing 1)ER Net) 79.2%

83.4%

51.1%

23. Unit forced Outa;c Rate 0%

1.0%

30.2%

24. Shutdowns ScheJuled Oser Next 6.i! oaths i T)pe. Date.and Duration of Each 6:

N/A

25. If Shut Dawn At End Of Report Periad. Estinufed Date of Startup:

N/A

26. Unit,in Test Status Prior to Com:nereal O.cration):

Fu eeast Achiesed i

INITI\\L CRf Tit \\LITY N/A N/A INITIAL ELEC TRICITi N/A N/A CO\\lstERCI \\L OPLR \\ TION N/A N/A IW77)

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-312 Rancho Seco Unit 1 3.lT DATE 82-02-28 COMPLETED BY R. Colombo (916) 452-3211 TELEPHONE MONTH February 1982 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) q uwe.Negi 759 824 37 507 2

898 18 511 3

896 39 898 508 4

29 869 505 5

21 508 6

901 22 509 7

902 23 507 8

899 24 9

898 25 510 509 10 899 26 901 506 2,

900 505 12 23 899 13 29 895 14 30 15 894 3

16 845 INSTRUCTIONS On this format, list the aver. ige daily unit power lesel in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

(4/77)

50-312 DOCKET NO.

UNIT SHUTIK)WNS AND POWER REDUCTIONS Rancho Seco Unit 1 UNIT N AME DATE 82-02-28 COMPLETED BY R. Colombo REPORT MONTil February 1982 TELEPHONE (916) 452-3211 w.

E E

5g

}

E3 Licensee E-t,

{n.

Cause & Corrective

}j$

j Event 3?

g3 No.

Dare i

3g Action to U

Prevent Recurrence y:

5 jgg Report =

to O H

g 6

4 82-02-01 F

0 A

4 N/A IF INSTRU Loss of auto control on main feed pump Bailey Controllers. Automatic runback power reduction.

5 82-02-05 F

0 A

4 N/A CH PUMPXX "B" Main Feed Pump trip. Automatic runback power reduction.

6 82-02-16 S

0 F

1 N/A ZZ ZZZZZZ Load dispatcher requested power cutback.

I 2

3 4

F: Forced Reason:

Method:

Exhibit G. Instructions S: Scheduled A Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenarce of Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3 Automatic Scram.

Event Report (Ll!R) File (NUREG-D-Regulatory Restriction 4 Other (Explain) 0161)

E-Operator Training & License Examination F-Administrative 5

G-Operational Estor (Explain)

Exhibit I - Same Source (9/77)

Il-Ot her ( Explain)