NL-88-587, Monthly Operating Rept for Apr 1988

Monthly Operating Rept for Apr 1988

ML20154E093
Person / Time
Site:	Rancho Seco
Issue date:	04/30/1988
From:	Crunk S SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NL-88-587, NUDOCS 8805200090
Download: ML20154E093 (7)

Text

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! AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-312 UNIT Rancho Seco Unit 1 L DATE 4/30/88-COMPLETED BY S. Crunk TELEPHONE (916) 452-3211 MONTH Acril 1988

. DAY AVERAGE DAILY P0HER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MHe-Net) 1 0 17 232 2 0 18 233 l

3 0 19 231

]

4 0 20 214 3

5 0 21 229 4 6 0 22 260 7 0 23 235

8 0 24 234 9 0 25 235 10 0 26 225 l 11 0 27 229

) 232 12 58 .__ 28

} 13 70 29 234 i 14 191 30 237 l

l 15 233 _ 31 l

16 230 i

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

]F2 't 8805200090 880430

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OPERATING DATA REPORT DOCKET NO. 50-312 DATE 4/30188 COMPLETED BY .

S. Crunk TELEPHONE (916) 452-321_1 OPERATING STATUS

1. Unit Name: Rancho Seco Unit 1 Notes:

2. Reporting Period: Acril 1988

3. Licensed Thermal Power (MHt): 2.772__

4. Nameplate Rating (Gross HHe): 963

5. Design Electrical Rating (Net HHe): 918

6. Maximum Dependable Capacity (Gross HHe): 917

7. Maximum Dependable Capacity (Net MHe): 873

8. If changes Occur in Capt. city Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons: __

N/A.

9. Power Level to Hhich Restricted If Any (Net KHe): N/A

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

11. Hours in Reporting Period 7.19 2.901___ 114.287

12. Number of Hours Reactor Was Critical 688.1 691.6 55.013.6

13. Reactor Reserve Shutdown Hours 0 0 10.30012_

14. Hours Generator On-Line 449.8- 449.8__ 594813.6_

15. Unit Reserve Shutdown Hours 0 0 1.210,2_

16. Gross Thermal Energy Generated (HHH) 377.080_ 377.080 12L 21B J68 _

17. Gross Electrical Energy Generated (MHH) 112.743 112,743_ _41.535,940

18. Het Electrical Energy Generated (HHH) 85.894 45 551._ _3L22L595

19. Unit Service Factor 62.6% 15.5% 44.5%

20. Unit Availability Factor 62.6% 15.5% 45.5%

21. Unit Capacity Factor (Using HDC Net) 13.7%_ 1.8%_ 38.4%

22. Unit Capacity Factor (Using DER Net) 13.01_ 1.7%- 36.5%

23. Unit Forced Outage Rate 0% 82.9%_ 44.6%

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

As cart of the power ascension testing orogram. two reat. tor trigt_htye been glanned.

Reactor trio at 25% cover olateau Hav 5-11. 1988. Reactor trio at 80% power olateau itheduled Seattmher 24. 1988 for 4 days.

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

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

DOCKETNO. 50-312 UNIT SHUTDOWNS AND POWER ilEDUCTIONS ancin Seco UNIT DATE NAME [pri 30. 1988 I

Apri1 1988 COMPLETED BY 5. L. Grunk REPORT MONTil TELEPHONE (916) 452-3211 1

, !E 3 y

Y Licensee 53, h*., Cause & Curreciive Action to No Date g r3 g .255 Dent :T O

$E 5 jij Report # <N 0

[Q Prevent Recurrence 8

2 88-03-3b S 30.9 E 4 N/A -

N/A N/A Operator training and testing prior to power generation (Reactor brought critical 17 times in April for training) 3 88-04-11 S 8.4 8 1 N/A N/A N/A The turbine was tripped as part of-the power ascension testing program.

I 2 3 4 f F.u6cd Reason: Methed: Exhibit C Instructions S St heduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance of Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling .3 Automatic Scram. Event Report (LE R) File t NUREG-D-Regulatory Resiriction 44ther (Explain) 0161)

E-Operator Training & Ucense Examination F-Administrative 5 G-Operational Error (Explain) Exhibit I . Same Source r81771 Il-Other (Explain)

APRIL 1988

SUMMARY

OF PLANT OPERATIONS As part of the power ascension test program, the Operations Department practiced reactor startups and shutdowns during the first two days of April.

Reactor power was increased to 3 percent on April 3 and to 10 percent on April

10. Rancho Seco began producing electricity at 2148 hours0.0249 days <br />0.597 hours <br />0.00355 weeks <br />8.17314e-4 months <br /> on April 11, 1988.

The plant was taken off line on April 12 for further testing. Reactor power was increased to 15 percent on April 12 and at 1625 hours0.0188 days <br />0.451 hours <br />0.00269 weeks <br />6.183125e-4 months <br /> the plant was put back on line. Reactor power was increased to 25 percent on April 13 and to 30 percent on April 14. The plant remained at approximately 30 percent power through the end of April.

PERSONNEL CHANGES REQUIRING REPORT One management position change requires reporting pursuant to Technical Specification Figure 6.2-2. James R. Shetler was named Director, Plant Support.

Mr. Shetler has over 16 years experience in the nuclear power industry, including management responsibility for system operability investigations, modification testing, system functional testing, materials management, cost control, and data management. He has been responsible for scheduling and integration of routine maintenance and outage activities and has extensive refueling outage coordination and management experience. Mr. Shetler held progressively responsible positions in systems design engineering, plant test and operating procedure development, and plant startup test engineering. He received a bachelor of science degree in Chemical Engineering from Clarkson College of Technology and has worked for Babcock & Hilcox and the Sacramento Municipal Utility District.

SU MARY OF CHANGES IN ACCORDANCE HITH 10 CFR 50.59 There were no documentation packages completed for facility changes, procedure t changes, tests or experiments during April 1988.

MAJOR SAFETY-RELATED MAINTENANCE, TESTS AND HODIFICATIONS NOT REQUIRING DETAILED SAFETY ANALYSES

1. Auxiliary Feedwater System hot functional testing, power range calibration, pressure testing of a safety features valve, maintenance run of the Terry turbine, fine-tuning of the Integrated Control System, Main Feedwater Ps.p testing, turbine overspeed testing, and PASS testing were

completed during April. Maintenance work was performed on the Auxiliary i Boilers.

2. ECN R-2815, Revision 0, installed a closure spring and blade-lock assembly for the NSEB HVAC fire damper because the damper did not close completely I during a surveillance test.

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'3 . ECN R-0238, Revision 3, replaced and relocated corroded acid addition components of the Secondary Chemical Addition System (SCA).

4. ECN R-2955, Revision 0, modified supports on the G100A TDI diesel starting air system.

5. ECN R-2957A upgraded the four turbocharger support bolts on the G100A TDI diesel engine.

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REFUELItG INFORMATION REQUEST

1. Name of Facility Rancho Seco Unit 1

2. Scheduled date for next refueling shutdown: March 1. 1989

3. Scheduled date for restart following refueling: June 27. 1989

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: January 15. 1983_

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 data of the last refueling that can be discharged to the Spent Fuel Pool: December 3. 2001 l

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kSMUDSACRAMENTO MUNICIPAL UTILITY DISTRICT C P. O. Box 15830, Sacramento CA 95852-1830,(916) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA NL 88-587 MM 1 0 1333 U. S. Nuclear Regulatory Commission 4 Attn: Document Control Desk Hashington, DC 20555 Docket No. 50-312 Rancho Seco Nuclear Generating Station License No. DPR-54 OPERATING PLANT STATUS REPORT

Dear Sirs:

Enclosed is the April 1988 Monthly Operating Plant Status Report for the Rancho Seco Nuclear Genercting Station. The District submits this report pursuant to Technical Specification 6.9.3.

Sincrely, tev . Crunk Manager, Nuclear Licensing Encl (5) cc: J. B. Hartin, NRC, Halnut Creek F. J. Miraglia, NRR, Rockville G. Kalman, NRC, Rockville INP0 R. Twilley, Jr.

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