ML19256A857

Monthly Operating Rept for Dec 1978

ML19256A857
Person / Time
Site:	Farley
Issue date:	01/01/1979
From:	Hairston W ALABAMA POWER CO.
To:
Shared Package
ML19256A853	List: ML19256A852 ML19256A857
References
NUDOCS 7901160238
Download: ML19256A857 (4)

Text

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4 JOSEPH M.

FARLEY NUCLEAR PLANT UNIT 1 NARRATIVE

SUMMARY

OF OPERATIONS DECEMBER, 1978 In December, 1978, there were two unit shutdowns (one manual shutdown and one manually initiated reactor trip).

The unit was taken off-line on December 20 when excessive moisture was noted in the exciter.

An investigation indicated that the moisture was due to condensation possibly resulting from inadequate drainage.

The exciter area was dried out and the exciter was inspected for damage.

Subsequent investi-gation indicated that the exciter cooler temperature was also a contributing factor.

The unit was returned to power on December 23.

On December 31 the unit was manually tripped following a trip of both steam gene 7.cor feed pumps (due to a low suction pressure signal).T;te unit was returned to power on January 1, 1979.

The follcving significant safety related maintenance was performed in December.

1.

Continued work on 1C CCW pump motor rework.

2.

Reworked river water pumps 4 and 9 after vibration / bearing problems.

3.

Repaired 2C DG 1A air compressor after compressor failed to unload on auto-start; repaired 1-2A DG 1A air compressor after a check valve stuck.

4.

Repaired 1A boron injection pump seal / flange leakage.

5.

Repaired motor driven fire pump breaker after breaker failed to close.

6.

Repaired No. 1 diesel driven fire pump after indication of internal rubbing.

7.

Repaired B Train penetration room exhaust fan after fan tripped on overload.

8.

Replaced nuclear instrumentation system intermediate range detector N3C when N36 could not be compensated from the control drawer.

Source range detector N32 was replaced with it.

An N32 preamplifier was also replaced when it failed low.

7 9 01 16 0 2 3,1E

4 o

OPERATING DATA REPORT DOCKET NO. 50-348 DATE l-1-79 COMPLETED !!Y W.

G.

Flairston, III TELEP110NE (205)899-5156 OPERATING STATUS

1. Unit Name: Joser>h M. Farley Unit 1 Notes 1/ Cumulative data

2. Reporting Period:

December, 1978 since 12-1-77, date of 2652 commercial operation.

3. Licensed Thermal Power (MWt):

4. Nameplate Rating (Gross MWe):

860 8B

5. Design Electrical Rating (Net MWe):

6. Maximum Dependable Capacity (Gross MWe):

860*

7. Maximum Dependable Capacity (Net MWe):

829*

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:

N/A

9. Power Level To Which Restricted. If Any (Net MWe):

N/A

10. Reasons For Restrictions,if Any: N/A This Month Yr.-to-Dat e

~ Cur'nulative II. Ilours In Reporting Period 744 8760 9504

12. Number Of flours Reactor Was Critical 697.2 _

7700.5 8243.8

13. Reactor Reserve Shutdown flours 4'

897.4 1007.5

14. Ifours Generator On-Line i.0 7573.9 8085.7

15. Unit Reserve Shutdown llours 0

0 0

16. Gross Thermal Energy Generated (MWil) 1,787,293' 19,519,245 20,823,248

17. Gross Electrical Energy Generated (MWil) 573,348 6,252,812 6,674,198

18. Net Electrical Energy Generated (Mbil) 544,126 5,919,896 6,315,826

19. Unit Service Factor 91.5%

86.5%

85.1%

20. Unit Availability Factor 91.5%

86.5%

85.1%

21. Unit Capacity Factor iUsing MDC Net)

88. u.

81.5%

80.2%

22. Unit Capacity Factor (Using DER Net) 88.2%

81 J7.

80.2%

23. Unit Forced Outage Rare 8.5%

6.7%

8.0%

24. Shutdowns Scheduled Oser Next 6 Months (T~we. Date,and Duration of Each):

Refueling, February 1979, 7 weeks.

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

I-I~79

26. Units in Test Status (Prior to Commercial Operation):

Forecast Achieved INITI A L CRITICA LITY 8-6-77 8-9-77 8-20-77 8 -11)-77 INITIAL ELECTRICITY COMMERCIAL OPERATION 12-1-77 12-1 *The Nameplate Rating / Design E'actrical Rating will be used for the Maximum Dependable Capacity until an accurate value can be determined from operating experience.

p

y AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-348 Farley Unit 1 3.lT I-I-79 DATE W.

. Hairston, III COMPLETED BY (205)899-5156' TELEPil0NE MONTil December, 1978 DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (MSe-Net)

y w e.yer, 811 815 I

37 810 817 2

3 803 805 3

9 800 4

20 531 811 0

5 21 811 0

6 22 805 527 7

,3 g

795 808 24 801 819 9

25 809 821 10

,6 814 11 27 821 815 820 12 28 814 822 13 14 819 30 813 820 563 15 3

808 16 INSTRUCTIONS On this format.hst the average daily unit power lesel in MWe. Net for each day in the reportine month. Compute to the nearest whole megawatt.

(W77 )

Q

g p

50-348 UNIT S!!UTDf W.

• AND POWER REDUCTIONS DOCKET NO.

UNIT NAA!E Farley Unit I l

DATE l-1-79

)

REPORT MONTil December COMPLETED BY W.

G.

Hairston, III TELEPilONE (205T 899-5156 i

E e

n

? eo 5"

.2 _e g

p !! x Licensee g r, g.

Cause & Corrective N,o -

Date g

3g

,3 g 5 Event u '2 c"

Action to

$E 5

jgg Report a N0 Present Recurrence 5

i-i 44 781220 F

56.2 H

1 N/A HA Genera Unit was taken off-line as a result i

of water (condensation) in the exciter possibly caused by inadequate drain-3 age.

The exciter was dried out and inspected, and the unit was returned on-line.

A plant change request will e

i be submitted to evaluate the problem, 45 781231 F

6.8 G

2 N/A HH Valvex Unit tripped following trip or both steam generator feed pumps (SGFP). ~

I SGFP suction header isolation (instru-ment) valves were found isolated.

i{

The contained pressure apparently j

bled off resulting in the SGFP trip.

The valve position error was corrected and the unit was returned on-line.

t I

2 3

4 F: Forced Reason:

Method:

Exhibit G Instructions S: Scheduled A Equipment Failure (Explain) 1 Manual for Preparation of Data f'

B4taintenance or Test 2-Manual Scram.

Entry Sheets for Licensec C Refueling 3 Automatic Scram.

Event Report (LER) File (NURL:G-I D Regulatory Restriction 4 Other (Explain) 0161) i E Operator Training & License Examination F-Administrative 5

G-Operational Error (Explain)

Exhibit I Same Source (9/77) 11-01her (Explain) c i

i

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