ML20215F311

Monthly Operating Rept for May 1987

ML20215F311
Person / Time
Site:	Crane
Issue date:	05/31/1987
From:	Hukill H, Smyth C GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
5211-87-2120, NUDOCS 8706220329
Download: ML20215F311 (6)

Text

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OPERATIONS

SUMMARY

MAY,1987 The unit entered May at 84% reactor power limited by high OTSG (Once Through Steam Generator) levels.

On May 1,1987 at 1700 hours0.0197 days <br />0.472 hours <br />0.00281 weeks <br />6.4685e-4 months <br />, a reactor trip was initiated by tripping the Main Turbine.

This trip was performed to redistribute OTSG deposits and was a close duplicate of a planned reactor trip performed during the Cycle 5 Power Escalation Test Sequence. The trip produced lower OTSG 1evels. The next day an unplanned reactor trip occurred with the reactor at 90% power. This trip was a result of calibrating a nuclear instrument channel which had not been isolated from the ICS (Integrated Control System).

The plant successfully reached 100% power on May 3,1987 at 1100 hours0.0127 days <br />0.306 hours <br />0.00182 weeks <br />4.1855e-4 months <br />. The "A" letdown cooler was taken out of service due to tube leakage on May 13, 1987. The_ plant remained at essentially 100%

power for the remainder of the month.

MAJOR SAFETY RELATED MAINTENANCE During the month of May, the following major maintenance item was performed.

River Water Pump NR-P-1 A - Pump NR-P-1 A was removed from service for overhaul due to high vibration. A spare bowl assembly (impeller, impeller shaft, etc.)

was obtained from stores and was balanced. The motor was removed from the pump. The pump disassembly, repair and reassembly will be performed in June.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-289 UNIT TMI-1 DATE 5-31-87 COMPLETED BY C.W. Smyth TELEPHONE (717) 948-8551 MONTH:

MAY DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWE-NET)

(MWE-NET) 1 486.

17 826.

-2 379.

18 822.

3 805.

19 834.

4

839, 20 836.

5 840.

21 830.

6 834.

22 825.

7 831.

23 783.

8 833.

24 780.

9

831, 25 786.

10 821.

26 820.

11 823.

27 830.

12 825.

28 821.

13 808.

29 812.

14 837.

30 810.

15 830.

31 811.

16 836.

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OPERATING DATA REPORT l

DOCKET NO.

50-289 DATE 5-31-87 COMPLETED BY U.W. bmyth

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TELEPHONE (/1/) 946-6bb1 i

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OPERATING STATUS l

I NOTES

1. UNIT NAME:

THREE MILE ISLAND UNIT 1

2. REPORTING PERIOD:

MAY

,1987.

3. LICENSED THERMAL POWER (MWT) :

2535.

4'. NAMEPLATE RATING (GROSS MWE):

871.

5. DESIGN ELECTRICAL RATING (NET MWE) :

819.

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE) :

824.

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

776.

8.

IF CHANGES OCCUR IN (ITEMS 3-7) SINCE LAST REPORT, GIVE REASONS:

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE)

10. REASONS FOR RESTRICTIONS, IF ANY:

THIS MONTH YR-TO-DATE CUMMULATIVE

11. HOURS IN REPORTING PERIOD 744.

3623.

111720.

12. NUMBER OF HOURS REACTOR WAS CRITICAL 735.3 1652.8 41738.3

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1874.9

14. HOURS GENERATOR ON-LINE 728.8 1581.5 40827.7

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 1807556.

3531154.

98458415.

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 627383.

1236401.

32755272.

18. NET ELECTRICAL ENERGY GENERATED (MWH) 592460.

1151072.

30621047.

19. UNIT SERVICE FACTOR 98.0 43.7 36.5 i

20. UNIT AVAILABILITY FACTOR 98.0 43.7 36.5

21. UNIT CAPACITY FACTOR (USING MDC NET) 102.6 40.9 35.1

22. UNIT CAPACITY FACTOR (USING DER NET) 97.2 38.8 33.5 I

23. UNIT FORCED OUTAGE RATE 1.0 0.5 59.2

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH

25. IF SHUT DOWN AT END OF REPORT PER.".OD, ESTIMATED DATE OF STARTUP:

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REFUELING INFORMATION REQUEST l

1.

Name of Facility:

Three Mile Island Nuclear Station, Unit 1 2.

Scheduled date for next refueling shutdown:

July 1, 1988 (7R) 3.

Scheduled date for restart following refueling: September 14, 1988 (7R) 4.

Will refueling or resumption of operation thercaf ter require a technical specification change or other license amendment?

Yes (For 7R)

If answer is yes, in general, what will these be?

Basic Refueling Report.

i If answer is no, has the reload fuel design and core configuration been reviewed by your Plant Safety Review Committee to determine whether any unreviewed safety questions are associated with the core reload I

(Ref.10 CFR Section 50.59)?

If no such review has taken place, when is it scheduled?

l To be determined.

5.

Scheduled date(s) for submitting proposed licensing action and supporting information:

November 1,1987.

6.

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, new operating procedures:

None 7.

The number of fuel assemblies (a) in the core, and (b) in the spent fuel storage pool:

(a) 177 (b) 284 8.

The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is i

planned, in number of fuel assemblies:

The present licensed capacity is 752.

There are no planned increases at this time.

9.

The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity:

1991 is the last refueling discharge which allows full core off-load capacity (177 fuel assemblies).

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Middletown, Pennsylvania 17057 0191 717 944 7621 TELEX 84 2386 Writer's Direct Dial Number:

June 15, 1987 5211-87-2120 U. S. Nuclear Regulatory Commission Attn:

Document Control Desk Washington, D.C.

20555

Dear Sir:

Three Mile Island Nuclear Station, Unit I (TMI-1)

Operating License No. DPR-50 Docket No. 50-289 Monthly Operating Report May, 1987 Enclosed please find two (2) copies of the May,1987 Monthly Operating Report for Three Mile Island Nuclear Station, Unit-1.

Sincerely, H. D. Hu ill Vice President & Director, TMI-l HDH:DYH:spb cc:

W. Russell, USNRC R. Conte, USNRC Attachments 0015C

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i GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation

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