Text

Monthly Operating Rept for Jul 1981
	ML20039G264
Person / Time
Site:	Beaver Valley
Issue date:	08/04/1981
From:	Timko D; DUQUESNE LIGHT CO.
To:	;
Shared Package
ML20039G263	List: ML20039G262; ML20039G264;
References
	NUDOCS 8201150442
	Download: ML20039G264 (6)
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OPERATING DATA REPORT DOCKET NO. 50-134 DATE

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1 COMPLETED BY D. R.

Tinko TELEPil0NE..L..? -^M-9308 OPERATING STA1US

1. Unit Namer Beaver Valley Power Station, Unit #1 N05 I'

2. Ripotting Period:

3. Licensed The inai Power (MW ):

2660 4

923

4. Nameplate Rating (Gross MWe):

852

5. Design Electrical Rating (Net MWe):

845

6. Sfaxinurt Depencable Capacity (Gross MWe):

810

7. Muimum Dependable Capacity (Net MWe):

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

9. Power Level to which Restricted. If Any (Net MWe):

None

10. Reasons For Restuctions.If Any:.

N/A

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This Month Yr to.Date Cumulative 744 5,087 4 fi,031 II. Hours In Reporting Period 417.4 3,024.el 17.551.28

12. Numbe: Of Hours Reactor was Critical 0

0 4.482.8

13. Reactor Reserve Sh*:tdown Hours

14. Houn Generater On.Line 415.57 2,968. 91 t.

16.676.16

15. Unit Reserve Shutdown Hour:,

0 o

.o l,000, 0 6. O')

_7.322,017.4/ 35,429.910.62

16. Gross Tnerreal Energy Generated (MWH) 2,361,600 10.988,940 L

17. Gross Electrical Energy Generated (MWH)

- 18. Net Electrical Energy Generated (MWH) 317.551 2,176,347 10,037,852 t

55.y 58.4

.$ / 3

19. Unit Serse Factor 33.

8.4 37.5 l

20. Unit Availability Factor

21. Unit Capacity Factor SUsing MDC Net) 52.7 52.8 30.1

22. Unit Capacity Factor (U ing DER Net) 50.1 50.2 28.6 41.6

23. Unit Forced Outage Rate 44 l 45.2 l

24. Shutdowns Scheduled Over Next 6 Months (Type. Date.and Duration of Eacht:

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p r. f n e l i n o Ouraoe/Januarv 2/13 Weeks

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

26. Units In Test Status (Prior to Commercial Operationi:

Forecast Achieved INITIA L CRITICA LITY N/A N/A INITIAL ELECTRICITY N/A N/A COMMERCIAL OPERATION N/A N/A (9/77)

R201150442 810810 PDR ADOCX 05000334 R

PDR

5,

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AVERAGE DAILY UNIT POWER LEVEL

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50-334

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DOCKET NO.

UNIT BVPS Unic #1 8/4/81 r

DATE D. R. Ticko COMPLETED BY TELEPHONE 412-643-5308 J -' ' '

July, 1981 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

, l' (MWe-Net)

(MVe-Net) 788

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0 g7 g

791

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0 2

18 3

19 783 0

4 20 775 0

5 21 787 o

6 22 779 0

7 23

^ 774 0

8 24 774 0

9 25 0

782 10 26 791 0

Il 27 787 0

,=

12 28 774 0

13 29 783 0

14 30 15 31 16

':-779 INSTRUCTIONS On this forrnat. list the average d.riy unit power leselin Mn'e. Net for each day in the reporting inonth.Connpute to the nearest whole megawait.

(4,I771 y

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i UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-334 UNIT NAME BVPS. Unit #1 i-DATE.

" # ' 1 REPORT MONTH July,1981 COMPLETED BY D.

R. Timko TELEPHONE' 412-643-5308 l

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.5 E 3

jYh Licensee

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Cause A Correceive Da's k

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4 2i5 Event 37

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Assi.m to j0 3:

E jig Report *.

40 Prevens Recurrence 6

i 7

810719 F

328.43 A

3 CB Vessel The plant was being taken off line to repair a blown rupture disk on thi i

pressurizer relief tank. When transferring f rom ~inain feed valves to bypass feed regulating valves, at 15% power, slow response of B bypass. feed regulating valve resultec.

in'a high steam generator level reactor trip. Replaced blown rupture disk.

b 4

1 2

3 4

F: Forced Reason:

Method:

Exhibit G. instructions S: Schedu?cd A Equipment Failure (Explain)

' l-Manual for Pseparaiom ol' Data 8 Maintenance cites 2 Manual Sesaan.

Entr> Shecis for Licensee C. Refueling-

. 3-Automatic Scram.

Event Repose Ill:RI File (NUREG D-Regulatory Restriction 4 Other IExplain) 01611-110pection Training & License Examination F Admmisstative i

G-OWrational Es tor IExplain t Estubis I Same' Source -

l't/77)

Il-Other (thplain i

i' DUQUESNE' LIGHT.CUNTANY' Beaver Valley' Power Station y

NARRATIVE

SUMMARY

OF MONTHLi OPERATING EXPERIENCE - JULY,-1981 j

July 1 Station in Operational Mode 1 at nominal full power. At 1125 hours0.013 days 0.313 hours 0.00186 weeks 4.280625e-4 months through on July 16, one of the two rupture discs on the Pressurizer Relief l

July 16 Tank (PRT) ruptured due to problems maintaining level and pressure within the tank.

July 17 Station in Operational Mode l'at nominal full power. At 0139 hours0.00161 days 0.0386 hours 2.29828e-4 weeks 5.28895e-5 months , a reactor trip occurred due to high water 1cvel in the IB steam

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generator after the IB feedwater bypass flow regulating valve control-system did not adjust the feedwater flow quickly enough to stablize

-l the water level. At 0815 hours0.00943 days 0.226 hours 0.00135 weeks 3.101075e-4 months , boration of the Reactor Coolant System-(RCS) to the cold shutdown boron concentration was begun. At 1053 hours0.0122 days 0.293 hours 0.00174 weeks 4.006665e-4 months , 1

began cooldown of the RCS to 500F (pressure approximately 1800 PSIG) to permit replacement of. the PRT rupture disc. These. conditions were reached at 1249 hours0.0145 days 0.347 hours 0.00207 weeks 4.752445e-4 months and a maintenance team entered the containment i

to replace the PRT rupture disc. The installation of the rupture disc and the adjustment to the valve packing for Pressurizer Power-Operated l

Relief Valve (PORV) block valve [MOV-RC-535] were completed by 0030 i

hours on July 18.

Heat-up of the RCS was initiated at 0215 hours0.00249 days 0.0597 hours 3.554894e-4 weeks 8.18075e-5 months . At 1318 hours0.0153 days 0.366 hours 0.00218 weeks 5.01499e-4 months , the 1A containment air recirculation fan tripped due to high vibration warnings and the containment internal temperature began increasing. By 1600 hours0.0185 days 0.444 hours 0.00265 weeks 6.088e-4 months ,-the temperature was approaching the maximum allowable temperature and'cooldown of the RCS to Mode 5 conditions was connenced.

July 19 Station in Operational Mode 3 with the RCS pressure and temperature at approximately 1600 PSIG and 470F. The Station entered Mode 4 at 0300 hours0.00347 days 0.0833 hours 4.960317e-4 weeks 1.1415e-4 months and Mode 5 an 1533 hours0.0177 days 0.426 hours 0.00253 weeks 5.833065e-4 months . Containment vacuum was broken at 1559 hours0.018 days 0.433 hours 0.00258 weeks 5.931995e-4 months .

p July 20 Station in Operational Mode 5 with the RCS pressuie and temperature th rough at approximately 60 PSIG and 170F. Maintenance crews were repairing July 28 the IB containment air -recirculation fan and moving the damaged motor l

from the 1A fan from the containment to the controlled area machine l

shop. Repairs to the IB fan'were completed by mid-afternoon on July 21.

l Final repairs and reassembly of the safety injection to the 1C RCS cold leg line check valve [SI-25] were completed at 0045 hours5.208333e-4 days 0.0125 hours 7.440476e-5 weeks 1.71225e-5 months on July 22 and station start-up was begun. At 1730 hours0.02 days 0.481 hours 0.00286 weeks 6.58265e-4 months , with the station in operational Mode 5 e.nd start-up in progress, the station manegement-l received a report indicating potential problems with the pilot operator l

system of the main pressurizer relief valves.

Immediate action to l

inspect the valves was initiated and minor modifications were performed.

l In addition, repairs were made to two pressurizer power-operated relief valves prior to start-up.

At 1436 hours0.0166 days 0.399 hours 0.00237 weeks 5.46398e-4 months on July 28, operations personnel began drawing the containment' vacuum and, at 1700 hours0.0197 days 0.472 hours 0.00281 weeks 6.4685e-4 months , began l

pressurizing the RCS.

I July 29 Station in Operational Mode 5 with the reactor coolant system pressure and temperature at approximately 326 PSIG and 158F. A reactor coolant pump (RCP) was started and RCS heat-up to Mode 4 was commenced. The station entered Mode 4 at 0516 ours and Mode 3 at 1917 hours0.0222 days 0.533 hours 0.00317 weeks 7.294185e-4 months with RCS I

heat-up to 547F in progress.

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. l DUQUESNE LIGHT COMPANY Beaver Valley Power Station NARRATIVE SLSDiARY OF MONfHLY OPERKf1NG EXPERIENCE - JULY, 1981 (continued)

July 30 Station in Operational Mode 5 with the reactor coolant system pressure and temperature at coolant system pressure and temperature at approximately 1400 PSIG and 460F with start-up in progress.

RCS temperature of 547 F was reached at 0330 hours0.00382 days 0.0917 hours 5.456349e-4 weeks 1.25565e-4 months and reactor coolant boron dilution from cold shutdown to start-up boron concentration was begun at 0645 hours0.00747 days 0.179 hours 0.00107 weeks 2.454225e-4 months .

The reactor was critical at 1615 hours0.0187 days 0.449 hours 0.00267 weeks 6.145075e-4 months , the main unit generator was synchronized at 1805 hours0.0209 days 0.501 hours 0.00298 weeks 6.868025e-4 months and the station reached 100% power level at 2200 hours0.0255 days 0.611 hours 0.00364 weeks 8.371e-4 months .

July 31 Station in Operational Mode 1 at nominal full power.

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DUQUESNE LIGHT COMPANY Beaver Valley Power Station MAJOR SAFETY-RELATED MAINTENANCE - July, 1981 1.

Replaced one of two rupture discs on the pressurizer relief tank.

2.

Repaired electric-pneumatic transducer for pressurizer spray valve [PCV-KC-455A].

3.

Replaced valve packing on pressurizer power-operated relief valves

[PCV-RC-455C and 455D).

4.

Replaced valve trim in pressurizer power-operated relief valve block valves [MOV-RC-535 and 537].

5.

Replaced the fan blade of the 1B containment air recirculation fan.

6.

Modified pressurizer pilot-operated relief valves [RV-RC-551A, 551B and 551C] to insure proper pressure sensing to the pilot operator system.

7.

Replaced the inboard seals on the IB main feedwater pump.

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ML20039G264

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