ML19281A553

Monthly Operating Rept for Feb 1979

ML19281A553
Person / Time
Site:	Farley
Issue date:	03/01/1979
From:	Hairston W ALABAMA POWER CO.
To:
Shared Package
ML19281A552	List: ML19281A551 ML19281A553
References
NUDOCS 7903210147
Download: ML19281A553 (8)

Text

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JOSEPH M. FARLEY NUCLEAh PLANT UNIT 1 NARRATIVE

SUMMARY

OF OPERATIONS FEBRUARY, 1979 In February, 1979, there were four unit shutdowns (all automatically initiated) and four power reductions. The unit tripped February 14 due to a voltuge drop in the vital AC system induced by a short circuit at the SSPS cabinet while trouble shooting. This caused an indicated loss of flow in lA RCS loop. During power ascention, delta-flux exceeded its band causing an accumulation of >60 penalty points which limited reactor power to 50%. Afte2 the delta-flux penalty points above 60 were cleared, reactor power was limited to 90% due to 3B and 4B feedwater heaters being isolated. Feedwater heater 4B had definite tube leakage.

The unit tripped February 16 due to a loss of main generator excitation. The door to the main generator potential transformer cabinet was opened to check for moisture, causing the potential transformers to disconnect, resulting in a loss of excitation. Signs were posted notifying plant personnel not to open the main generator potential transformer cabinet with tne main generator in service. During startup, the unit tripped twice due to lA Steam Generator low-low level, once due to initiating steam dump operation with insufficient feed flow makeup from auxiliary feed water and once due to manual operation of the feed regulating valves.

During power ascention, delta-flux exceeded its band causing an accumulation of >60 penalty points which limited reactor power to 50%. After the delta-flux penalty points above 60 were cleared, reactor power was limited to 90% due to 3B and 4B feedwater heaters being isolated. Feedwater heater 4B tube leaks were repaired and the unit returned to 100% power on February 22.

The following significant safety-related maintenance was performed in February:

1. Repaired oil leak on 1B Reactor Makeup Water Pump

2. Replaced mechanical seal on lA BIT recirculating pump

3. Repaired seat leakage on RHR drain valves

4. Replaced rupture discs on Waste and Recycle evaporators

5. Replaced concentrates pump on Waste and Recycle evaporators

6. Replaced master key test switch in BlJ, BlH, BlG and B1F Diesel sequencers 7903210147

7. Gverhauled 1D service air compressor. Commenced overhaul of 1B service air comnressor

8. Pulled 1A Service Water pump for overhaul

9. Completed testing on Service Water pond level switch.

OPERATING DATA REPORT DOCKET NO. 50-348 DATE 3/1/79 C051PLETED fly W.G. Ilairston III TELEPllONE ('>0sT 899-5156 OPERATING STATUS

1. Unit Name: J seph M. Farley, Unit 1 Notes 1/Cummulative data

2. Reporting Period: February. 1979 since 12/1.77, date of

.652 Commercia] Operation.

3. Licensed Thennal Power (.\lWI):

4. Nameplate Rating (Grow N1We): 860 .

5. Design Electrical R:. ting (Net 31We): 829

6. Blaximum Dependable Capacity (Gross S!We): 860*

7. Maximum Dependable Capacity (Net S!We): 829*

8. If Changes Occur in Capacity Ratings (items Number 3 Through 7)Since Last Report. Gise Reasons:

N/A

'i. Power Lesel To Which Restricted,1f Any (Net alwe): N/A

40. Reasori For Restrictions,if Any: N/A This Month Yr.-to Date 'Cumulatise

11. Ilours In Reporting Period 672 1416 10920

12. Number Of flours Reactor Was Critical 661.4 1346.3 9590.1

13. Reactor Resene Shutdown flours 10.6 69.7 1077.2

14. Ilours Generator On-Line 655.8 1324.2 9409.9

15. Unit Reserve Shutdown Hours 16. Gross Thermal Energy Generated (MWil) 1.616.052.5 3.I74,435.1 23,997,683.1

17. Gross Electrical Energy Generatea (MWil) 516,8,,Jil. . 1.015.960 7.303.252 IS. Net Electrical Energy Generated (MWil) 484.350 959.958 7.275,784

19. Unit Senice Factor 97.6 93.5 86.2

20. Unit Availability Factor 97.6 93.5 86.2

21. Unit Capacity factor (Using MDC Net) 87.8 81.8 80.4

22. Unit Capacity Factor (Using DER Net) 87.8 81.8 80.4

23. Unit Forced Outage Rate 2.4 6.5 7.2

24. Shutdowns Scheduled Oser Next 6 Months (Ty pe. Date,and Duration of Each):

Refueling Outage, March 1979, approximately 10 weeks

25. If Shut Down At End Of Repmt Period. Estim red Date of Startup: N/A

26. Units in Test Status (Prior to Commercial Operation): Forecast Achiesed INITI A L CRITICA LITY 8/6/77 8/9/7l INITI A L ELEC TRICITY 8/70/77 8/18/77 COMMERCIAL OPER ATION 12/1/77 _12/1/77

• The Nameplate Rating / Design Electrical Rating will be used for the maximum Dependable Capacity until an accurate value can be determined from operating experience. N77 I

tVERAGE DAILY UNil POhER LEVEL DOCKET NO. 50-348 UNIT I DATE 3/1/79 CO\1PLET ED llY E G. Hairston, III TELEPilONE (205)899-5156 510NTil February DAY AVER AGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (51We-Net ) i s!We. Net)

I 805 37 166 2 819 33 639 3 819 39 713 819 716 4 0 5 _ 817 21 711 6 813 22 752 7 815 23 770 g 819 793

, 9 818 25 789 10 820 26 ., 779

816 770 37 12 815 756 23 815 ---

13 29 34 623 30

~~~

15 342 ---

462 INSTRUCTIONS On this format, hst the aserage daily umt power lesel m N1We 'et for each day in the reportine month. Compute to the nearest whole megawatt.

(0 /77 )

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DOCKET NO. 50-348 UNIT S!!UTDOWNS AND POWER REDUCTIONS UNIT NA3f E F,el ev Uni e 1 DATE 1/1/70

.r' 111 REPORT hf 0NTil vari,,v,.

COh!PLETED DY(W. G. Hairston.

TELEPHONE 205)899-5156 e.

e c. ~= w 5 c No" Date E. !0 75U.p y e Event g,7

• Cause & Corrective Action to g 3.2 " Report a in u g.

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oO i Di l Prevent Recurrence c5 08 790214 F 3 H 3 N/A IA Instru Unit trip caused by a voltage drop in the Vital AC System induced by a short circuit at the SSPS cabinet while trouble shootJng. This caused an indicated loss of flow in lA RCS loop. The unit was returned on line.

09 790214 F 32.7 F N/A N/A ZZ ZZ Unit was limited to 50% Rx power due to exceeding the delta-flux band during startup. (Accummulated > 60 penalty points.)

10 790216 F 14.7 A N/A N/A CH XX Unit was limited to 90% Rx power due

, to 3B and 4B feedwater heaters being isolated. 4B feedwater heater has definite tube leakage.

I 2 3 4

' F: Forced Reason: hiethod: Exhibit G-Instructions S: Scheduled A Equipment l'ailure(Explain) 1-htanual -

for Preparation of Data B htaintenance of Test 2 h!anual Scrarn. Entry Sheets for 1.icensee C-Refueling 3 Automatic Scram. Event Report (LER) File (NUREG-D Regulatory Restriction 4-Other (Explain) 0161)

E-Operator Training & License Examination

. F AdministratP., 5 G. Operational Error (Explain) Exhibit I Same Source (9/77) Il Other (Explain)

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DOCKET NO. 50-348 UNIT SilOTDOWNS AND P )WER REDUCTIONS UNIT NAME Farlev Unir 1 DATE 3/1/74

. W. b. Hairston, III COMPLETED BY REPORT MONTil Februarv TELEPilONE (20s)so9-s15s "t_

., ,$g };; . Licensee E-r, o Cause & Corrective No. Date g 2s5 H

3g fE s gig Event Report a M

mO Q g

Action to Prevent Recurrence 6

11 790216 F 2.5 G 3 N/A EB Transf Unit trip caused by loss of main generator excitation. Opening the door to the potential transformer compartment for the main generator exciter disconnected the potential transformers resulting in a loss of excitation. ?lant personnel were inspecting th? PT compartment for signs of moisture. Plant personnel were informed not to open the PT cabinet doors with the main generator in service. Warning notices have been posted.

12 790216 F 1.7 G. 3 N/A CC llT EXCll Unit trip caused by low 1A S/G 1evel due to initiating steam dump operation with'ihsufficient feed flow makeup from Aux. feed. Re-emphasize the i 2 3 4

' F: Forced Iteason: Method: Exhibit G. instructions S: Scheduled / quipment Failure (Explain) 1 Manual for Preparation or Data

'alntenance of Test 2 Manual Scram. Entry Sheets for I.icensee

, aefueling 3 Automatic Scram. Esent Report (LERI File (NUREG-D. Regulatory Restriction 4 Other (Explain) 0161)

E Operator Train & License Examination

. F-Administrative 5 G-Operational Error (Explain) Exhibit I . Same Source (9/77) Il-Other (Explain)

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DOCKET NO. 50-348 UNIT S!!UTDOWNS AND POWER REDUCTIONS UNIT NAME Farlev Unit 1 DATE 3/1/79

.' Hairston,III REPORT MONTil Februarv COMPLETED TELEPIIONE 20M BY(W. G.

899-siss e.

E E

- EO 4 ~ EE Licensee E-r Eg Cause & Corrective No. Date $

H j$

f~ s

$ $jd 2 =

Event Report a N

v) V h oO Action to Prevent Recurrence a 53  ! u b

Cont. 12 importance of switching to the Main

. Feed pumps prior to increasing power above 5%

13 790217 F 9 G 3 N/A CC IIT EXCII Unit trip caused by 1A S/G low-low level with the feed regulating valves in manual. Additional experience in operating the main feedwater system in manual during start-up for some operators is needed. Unit returned on line.

14 790217 F 16.3 F N/A N/A ZZ ZZ Unit was limited to 50% Rx power due

. to exceeding the delta-flux band during startup. (Accummulated > 60 penalty points.)

I 2 3 4

' F: Forced fxh; bit G. Instructions Reason: Method:

S: Scheduled A Equipment Failure (Explain) 1 Manual for Preraration of Data

• D4ta ntenance or Test 2 Manual Scram. Entry Sheets for 1.icensee C Itefuel!ng 3 Automatic Scram. Event Iteport (LElli Fde (NUllEG.

D Regulatory Restriction 4 Other (Explain) 0161)

E-Operator Training & License Examination F-Administrative 5 G-Operational Error (Explain) Exhibit I . Same Source (9/77) Il Other (Explain)

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• DOCKET NO. 50-148 UNITSilUTDOWNS AND POWER REDUCTIONS UNIT NAME Farlev Unit 1 DATE 1/1/70

. s' COMPLETED BYW C 9,1 v e nn TT1 REPORT MONTil Februarv TELEPflONE(205 M99-5156 m

-_ E E

, .E ? };; hY5 Licensee ,E r, ja. Cause & Corrective No. Date g 3g 2gs Event p g"g Action to H

$5 5 ggg Report a mu g Present Recurrence d

15 790218 F 102.3 A N/A N/A CH XX Unit was limited to 90% Rx power due to 3B and 4B feedwater heaters being isolated. 4B feedwater heater leak was repaired and unit returned to 100% power.

I 2 3 4 8

F: Forced Iteason: Method: Exhibit G Instructions S: Scheduled A liguipment Failure (Explain) l Manual for Preparation of Data B Maintenance or Test 248'nual Scram. Entry Sheets for 1.icensec C Itefueling 3 Automatic Scram. Event Repori(LLR1 File (NUllEG-D-Regulatory Restriction 4-Other (Explain) 0161)

E Operator Training & License Examination

, F-Administrative 5 G-Operational Error (Explain) Exhibit I Same Source (9/77) Il-Other (Explain)

.