ML20154D641

Monthly Operating Rept for Apr 1988

ML20154D641
Person / Time
Site:	Crane
Issue date:	04/30/1988
From:	Hukill H, Smyth C GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
C311-88-2067, NUDOCS 8805190272
Download: ML20154D641 (6)

Text

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OPERATIONS

SUMMARY

APRIL 1988 The unit entered April at 100% power.

The plant continued 100% power operation for the entire month.

MAJOR SAFETY RELATED MAINTENANCE During the month of April, TMI Unit 1 performed the following major maintenance on safety-related equipment:

Nuclear Service Closed - Cooling Pump NS-P-1C - Nuclear Service Closed Cooling Water Pump NS-P-lC was removed from service because of increased vibration.

The motor / pump was uncoupled and the rotating assembly was removed from the casing. All parts were cleaned and inspected.

New bearings were installed and the rotating assembly was reassembled. A new mechanical seal was installed and the rotating assembly was reinstalled in the pump casing. The i

motor / pump then was aligned and coupled.

The punp was tested satisfactorily and returned to service.

j Nuclear Service Closed - Cooling Valve NS-Y-100 - Nuclear Service Closed Cooling water Valve N5-V-10C (N5-P-lC discnarge check valve) was opened for inspection and modification during the NS-P-1C overhaul. The valve internals were removed and inspected. A mechanical stop was welded to the valve cover to eliminate excessive movement and wear of internals. The valve was reassembled and tested satisfactory during the NS-P-1C retest.

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OPERATING DATA REPORT DOCKET NO.

50-289 DATE 04-30-88 COMPLETED BY C.W. Smyth TELEPHONE (717) 948-8551 OPERATING STATUS NOTES

1. UNIT NAME:

THREE MILE ISLAND UNIT 1

2. REPORTING PERIOD:

APRIL

,1988.

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 719.

2903.

119760.

12. NUMBER OF HOURS REACTOR WAS CRITICAL 719.0 2841.4 49361.9

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 61.6 1947.7

14. HOURS GENERATOR ON-LINE 719.0 2839.4 48439.2

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 1819116 7160868 117648568

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 625079 2467220 39335441

18. NET ELECTRICAL ENERGY GENERATED (MWH) 590968 2330095 36834377

19. UNIT SERVICE FACTOR 100.0 97.8 40.4

20. UNIT AVAILABILITY FACTOR 100.0 97.8 40.4

21. UNIT CAPACITY FACTOR (USING MDC NET) 105.9 103.4 39.4

22. UNIT CAPACITY FACTOR (USING DER NET) 100.4 98.0 37.6

23. UNIT FORCED OUTAGE RATE 0.0 2.2 55.2

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH Refuelina Shutdown, June 17. 1988 for 64 Days

25. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP:

4 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-289 UNIT TMI-1 DATE 04-30-88 COMPLETED BY C.W. Smyth TELEPHONE (717) 948-8551 MONTH:

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

(MWE-NET) 1 817.

17 817.

2 818.

18 817.

3 818.

19 828.

4 809.

20 829.

5 813.

21 826.

6 815.

22 830.

7 823.

23 829.

8 821.

24 826.

9 822.

25 825.

10 832.

26 824.

11 821.

27 822.

12 822.

28 827.

13 821.

29 828.

14 821.

30 826.

15 819.

31 N/A 16 822.

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s 50-289 DOCKET NO.

UNIT SilUIDOWNS AND POWER REDUCTIONS THI-I UNIT NAME DATE U4-30-83 COMPLETED BY C.W. Smyth APRIL REPORT MOND IELEPHONE (717) 948-8551 e

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a REFUELING INFORMATION REQUEST 1.

Name of Facility:

Three Itile Island Nuclear Station, Unit 1 2.

Scheduled date for next refueling shutdown:

June 17, 1988 (7R) 3.

Scheduled date for restart following refueling: August 19, 1988 4.

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

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

Basic Refueling Report.

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 (Ref.10 CFR Section 50.59)?

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

To be determined.

5.

Scheduled date(s) for submitting proposed licensing action and supporting information: April 5,1988 (TSCR 182 Cycle 7 Reload).

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 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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GPU Nuclear Corporation G u Nuclear

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

May 16, 1988 C311 2067 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 April 1988 Enclosed please find two (2) copies of the April 1988 Monthly Operating Report for Three Mile Island Nuclear Station, Unit 1.

l Sincerely, j

. }. $2 h A.S./JJ(

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. D. Hukt 1 Vice President & Director, TMI-l HDH/SM0:spb cc:

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

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