ML20235Q818

Monthly Operating Rept for June 1987

ML20235Q818
Person / Time
Site:	Crane
Issue date:	06/30/1987
From:	Hukill H, Smyth C GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
5211-87-2141, NUDOCS 8707210142
Download: ML20235Q818 (6)

Text

_

l OPERATIONS

SUMMARY

JUNE,1987 The unit entered June at 100% power with the "A" letdown cooler out of service due to tube leakage.

On June 12, 1987, a plant shutdown commenced to replace both letdown coolers.

Following a 15 day outage, the plant returned to 100%

power.on June 27,1987 at 2355 hours0.0273 days <br />0.654 hours <br />0.00389 weeks <br />8.960775e-4 months <br />. The plant continued to operate at.100%

power for the remainder of the month producing 860 MWe gross electrical generation.

MAJOR SAFETY RELATED MAINTENANCE j

1 During the month of June, the following major maintenance items were performed.

River Water Pump NR-P-1 A - Pump NR-P-1 A overhaul was completed during the month of June.

The pump was disassembled and inspected. The bowl assembly, shafts, tubes and bearings were replaced, and the pump was then reassembled.

The motor was overhauled and reinstalled / coupled to the pump.

Vibration readings were taken and the pump / motor balanced within the vibration. analysis program limits. The pump was operationally tested and returned to service.

Letdown Coolers MU-C-1 A/B - The letdown coolers, MU-C-1 A/B, were replaced because of excessive leaks between the tubes and shell.

The new coolers were inspected, flushed and had weld end preparations completed prior to moving into the Reactor Building.

Interference items in the letdown cooler room (MU-V-2A/B motor operators, electric leads to IC-V-1 A/B, etc. ) were removed, j

hangers were pinned / blocked, insulation removed and air conditioners were set i

up. The work area was shielded and welding machines set up. The old coolers

]

were cut out of the system and were removed from the Reactor Building.

The new coolers were moved into place, fit-up and welded in.

NDE was performed and the welds were found to be satisfactory.

Interference items were reinstalled, hangers were unpinned / unblocked, insulation was reinstalled and support items removed.

One of the failed coolers was cut open for failure analysis (will continue in July). All work was completed and the hydrostatic testing of the new coolers was satisfactory. All work on the new coolers is complete.

l NI-1 Cable - Signal Cable NI-l going from the Reactor Building penetration to the pre-amp was replaced along with the connectors. Also, the signal cable going from the pre-amp to the detector was replaced.

Brand-rex cable was used to replace the existing cable.

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OPERATING DATA REPORT DOCKET NO.

50-289 DATE-6-30-87 J

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COMPLETED BY C.W. Smyth TELEPHONE (717) 948-8651 OPERATING STATUS

' NOTES 1.-UNIT NAME:

THREE MILE ISLAND UNIT 1 q

2. REPORTING PERIOD:

JUNE

,1987.

J 3.' LICENSED THERMAL POWER (MWT) :

.2535.

I

4. NAMEPLATE RATING (GROSS MWE) :

871.

l

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:

l THIS MONTH YR-TO-DATE CUMMULATIVE

11. HOURS IN REPORTING PERIOD 720.

4343.

112440.

]

12. NUMBER OF HOURS REACTOR WAS CRITICAL 376.4 2029.2 42114.7 l

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1874.9 j

14. HOURS GENERATOR ON-LINE 373.9 1955.4 41201.6

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

!16. GROSS THERMAL ENERGY GENERATED (MWH) 927810.

4458964.

99386225.

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 320310.

1556711.

33075582.

1

18. NET ELECTRICAL ENERGY GENERATED (MWH) 298097.

1449169.

30919144.

)

l19. UNIT SERVICE FACTOR 51.9 45.0 36.6

.20. UNIT AVAILABILITY FACTOR 51.9 45.0 36.6 l

21. UNIT CAPACITY FACTOR (USING MDC NET) 53.4 43.0 35.2 l

22. UNIT CAPACITY FACTOR (USING DER NET) 50.6 40.7 33.6 1

1 23. UNIT FORCED OUTAGE RATE 48.1 15.3 59.1 1

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

~

NONE

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

j I

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-289 UNIT TMI-1 DATE 6-30-87 COMPLETED BY C.W. Smyth TELEPHONE (717) 948-8551 MONTH:

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

(MWE-NET) 1 812.

17

-6.

2 815.

18

-6.

3 817.

19

-6.

4 821.

20

-5.

5 824.

21

-6.

6 826.

22

-6.

l 7

821.

23

-6.

I 8

811.

24

-15.

9 815.

25

-29.

10 829.

26

-41.

11 825.

27 398.

I 12 734.

28 825.

13

-29.

29 819.

14

-13.

30 807.

15

-6.

31 N/A 16

-6.

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REFUELING INFORMATION REQUEST 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 thereafter require a technical specification change or other license amendment?

Yes (For 7R)

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

j Basic Refueling Report.

l 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 (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: 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 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).

l GPU Nuclear Corporation G7. U Muclear

eme:=48o o

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

July 15, 1987 5211-87-2141 3

1 I

U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C.

20555 1

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Dear Sir:

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

Operating License No. DPR-50 Docket No. 50-289 Monthly Operating Report i

June, 1987 l

Enclosed please find two (2) copies of the June,1987 Monthly Operating Report for Three Mile Island Nuclear Station, Unit-1, 1

Sincerely, 1

H. D.

ill Vice President & Director, TMI-l HDH:DVH:spb cc:

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

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GPU Nuclear Corporation is a subsidiary of the General Pub!ic Utilities Corporation i

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