L-99-154, Monthly Operating Repts for Sept 199 for Bvps,Units 1 & 2. with

Monthly Operating Repts for Sept 199 for Bvps,Units 1 & 2. with

ML20217E347
Person / Time
Site:	Beaver Valley
Issue date:	09/30/1999
From:	David Jones, Ostrowski K DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-99-154, NUDOCS 9910190175
Download: ML20217E347 (6)

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Telephone (412) 393-6000 Nuclear Group - L-99-154 P.O. Box 4 Shippingport, PA 15077-0004 October 7,1999 Beaver Valley Power Station Unit 1 - Docket No. 50-334, License No. DPR-66 Unit 2 - Docket No. 50-412, License No. NPF-73 Monthly Operating Report 1

U. S. Nuclear Regulatory Commission Document Control Desk Washington,DC 20555 Gentlemen:

In accordance with NRC Generic Letter 97-02, " Revised Contents of the Monthly Operating Report", and Unit I and 2 Technical Specification 6.9.1.6, the " Monthly Operating Report" is submitted for Uni t1 and Unit 2 for the month of September 1999.

Respectfully, .

. b K. L. Ostrowski Division Vice President, Nuclear Operations Group and Plant Manager DTJ/ sip .

Enclosures l

'cc: NRC Regional Office <

, King ofPrussia, PA >

ww , The Nuclear Professionals i

9910190175 990930 PDR ADOCK 05000334 R PDR

UNIT SHUTDOWNS DOCKET NO. 50 334 UNIT NAME BVPS Unit #1 DATE October 5,1999 COMPLETED BY David T. Jones TELEPHONE (412) 393-4962 REPORT!NG PERIOD: Seotember 1999 No. Date Type Duration l Reason Methe ' 'I Cause / Corrective Actions F: Forr.ed (Hours) (1) Shuth s: scheduled Down Gj Comments 9 990906 F 61.0 A 2 A manual reactor trip was initiated due to rapid swinging of instruments associated with the Main Unit Generator. A faulty potentiometer associated with the voltage regulator circuitry in the Main Unit Generator was replaced.

10 990909 F 29.1 A 1 During the subsequent startup, the Unit was shutdown from approximately 17%

output following oscillations observed when the voltage regulator for the Main ,

Unit Generator was placed into service.

Additional investigation found that the voltage regulator logic circuitry needed to be replaced.

(1) Reeson (2) Method A - Equipment Failure (Explain) 1 Manuel B - Maintenance or Test 2 ManuelTrip/ Scram C - Refusiing 3. Automatic Trip / Scram D - Regulatory Restriction 4. Continuation E - operator Training / Ucense Examination 5 - other (Expinin)

F . Administrative G. operational Error (Explain)

H . other (Explain)

SUMMARY

The Unit began the report period operating at a nominal value of 100% output. At 1722 hours0.0199 days <br />0.478 hours <br />0.00285 weeks <br />6.55221e-4 months <br /> on 09/06/99, a manual reactor trip was initiated and Mode 3 war entered due to rapid swinging of instruments associated with the Main Unit Generator. The Unit remained in Mode 3 while a faulty potentiometer associated with the voltage regulator circuitry in the Main Unit Generator was replaced.

On 09/08/99, Mode 2 was entered at 2057 hours0.0238 days <br />0.571 hours <br />0.0034 weeks <br />7.826885e-4 months <br /> and the Reactor was taken critical at 2211 hours0.0256 days <br />0.614 hours <br />0.00366 weeks <br />8.412855e-4 months <br />.

Mode 1 was entered at 0205 hours0.00237 days <br />0.0569 hours <br />3.38955e-4 weeks <br />7.80025e-5 months <br /> and the Unit was synchronized to the electrical grid at 0621 hours0.00719 days <br />0.173 hours <br />0.00103 weeks <br />2.362905e-4 months <br /> on 09/09/99. During startup, osciliations were observed when the voltage regulator for the Main Unit Generator was placed into service. The Unit was held at approximately 17% output while further investigation of the voltage regulator continued. Testing indicated that the voltage regulator logic circuitry needed to be replaced. The Unit commenced to shutdown at 2131 hours0.0247 days <br />0.592 hours <br />0.00352 weeks <br />8.108455e-4 months <br /> on 09/09/99. The Unit was removed from the electrical grid at 2206 hours0.0255 days <br />0.613 hours <br />0.00365 weeks <br />8.39383e-4 months <br />, Mode 2 was entered at 2240 hours0.0259 days <br />0.622 hours <br />0.0037 weeks <br />8.5232e-4 months <br />, and Mode 3 was entered at 2308 hours0.0267 days <br />0.641 hours <br />0.00382 weeks <br />8.78194e-4 months <br /> on 09/09/99. Following replacement of the voltage regulator logic circuitry,' Reactor starup was commenced and the Unit entered Mode 2 at 1923 hours0.0223 days <br />0.534 hours <br />0.00318 weeks <br />7.317015e-4 months <br /> on 09/10/99.

The Reactor was taken critical at 2027 hours0.0235 days <br />0.563 hours <br />0.00335 weeks <br />7.712735e-4 months <br /> and Mode 1 was entered at 2156 hours0.025 days <br />0.599 hours <br />0.00356 weeks <br />8.20358e-4 months <br /> on 09/10/99.

The Unit was synchronized to the electrical grid at 0315 hours0.00365 days <br />0.0875 hours <br />5.208333e-4 weeks <br />1.198575e-4 months <br /> on 09/11/99 and output was escalated.

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UNIT SHUTDOWNS DOCKET NO. 50-334 UNIT NAME BVPS Unit #1 DATE October 5,1999 COMPLETED BY David T. Jones TELEPHONE (412) 393-4962 REPORTING PERIOD: September 1999

SUMMARY

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During transfer of the Bypass Feedwater Regulating Valves to the Main Feedwater Regulating Valves, i the "B" Main Feedwater Regulating Valve failed to stroke fully open. At 0825 hours0.00955 days <br />0.229 hours <br />0.00136 weeks <br />3.139125e-4 months <br /> on 09/11/99, output was held at approximately 24% to permit replacement of the actuator for the "B" Main Feedwater Regulating Valve. At 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br /> on 09/12/99, repair of the "B" Main Feedwater Regulating Valve was completed.

At 0739 hours0.00855 days <br />0.205 hours <br />0.00122 weeks <br />2.811895e-4 months <br /> on 09/12/99, the Unit commenced power escalation from approximately 24% output to approximately 75% output as requested by Duquesne Light Company (DLCO) System Operations. At 1415 hours0.0164 days <br />0.393 hours <br />0.00234 weeks <br />5.384075e-4 months <br /> on 09/12/99, output was stabilized at approximately 73% output to load follow as requested by DLCO System Operations. The Unit continued to load follow at approximately 73%

output until 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> on 09/13/99 when retum to full power was commenced. A nominal value of 100% output was achieved at 1154 hours0.0134 days <br />0.321 hours <br />0.00191 weeks <br />4.39097e-4 months <br /> on 09/13/99.

The Unit continued to operate at a nominal value of 100% output until 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br /> on 09/24/99, when a planned 10% load reduction was commenced to permit draining of the "C" waterbox for leak testing of this portion of the Main Unit Condenser. An output of approximate ly 89% was achieved at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> on 09/24/99. At 2344 hours0.0271 days <br />0.651 hours <br />0.00388 weeks <br />8.91892e-4 months <br /> on 09/24/99, an unplanned load reduction to approximately 60% output was commenced to permit seal replacement on the "B" Main Feedwater Pump. An output of approximately 59% was achieved at 0335 hours0.00388 days <br />0.0931 hours <br />5.539021e-4 weeks <br />1.274675e-4 months <br /> on 09/25/99. At 0101 hours0.00117 days <br />0.0281 hours <br />1.669974e-4 weeks <br />3.84305e-5 months <br /> on 09/27/99, repair of the "B" Main Feedwater Pump was completed. Although DLCO System Operations requested the Unit to load follow at approximately 60% output until 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br /> on 09/27/99, the Unit increased output to approximately 64% output to enable post-maintenance testing of the "B" Main Feedwater Pump. At 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br />'on 09/27/99, the Unit commenced to retum to full power. Power escalation was halted at approximately 95% output at 0935 hours0.0108 days <br />0.26 hours <br />0.00155 weeks <br />3.557675e-4 months <br /> on 09/27/99 due to temperature limitations within the Main Unit Condenser hotwell with the "C" waterbox isolated. Incremental load reductions to approximately 85% output were performed during the day in order to maintain hotwell temperatures at less than 128 degrees with the "C" waterbox isolated. Upon return c/ the "C" waterbox to service, the Unit commenced to retum to full power at 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br /> on 09/27/99. The Unit achieved a nominal value of 100% output at 0130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br /> on 09/28/99. The Unit continued to operate at a nominal value of 100% output for the remainder of the report period.

In addition to the above, the following event which also occurred during the report period is being reported as required by Technical Specification 3.1.3.2 (Note 3). At 1725 hours0.02 days <br />0.479 hours <br />0.00285 weeks <br />6.563625e-4 months <br /> on 09/09/99, the Automatic Rod Position Deviation Monitor was declared inoperable when the plant computer (IPC) failed to update properly. The limiting condition for operation as specified in Technical Specifications was met because the deviations between the indicated rod positions were verified to be within their

12. step limits by_ obtaining analog / digital rod positions at least cnce every 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. The Automatic Rod Position Deviation Monitor was retumed to service at 2130 hours0.0247 days <br />0.592 hours <br />0.00352 weeks <br />8.10465e-4 months <br /> on 09/09/99.

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OPERATING DATA REPORT j DOCKET No.: 50-334 UNIT MAME: BVPS UNIT #1 REPORT DATE: 10/05/99 COMPLETED BY: DAVID T. JONES TEL1? PHONE s (412) 393-4962 e

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.................. j la. REPORTING PERIOD: SEPTEMBER 1999 *N tes

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1. DESIGN ELECTRICAL RATING (Net W e): 835 [ [

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2. MAX. DEPENDABLE CAPACITY (Net W e): 810 [,,,,,,,,,,,,,,,,[ f l

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THIS MONTH YEAR TO DATE CUMULATIVE 3a. HOURS IN REPORTING PERIOD: 720.0 6551.0 205271.0 k

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3. NO. OF HRS. REACTOR WAS CRITICAL: 645.9 5632.9 134912.9

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4. SERVICE HOURS GENERATOR ON LINE: 629.9 5548.1 l 132579.8  ;

5. UNIT RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0 l

6. NET ELECTRICAL ENERGY GEN. (MWH): 450354.0 4315154.0 98001046.0

7. GROSS ELEC. ENERGY GEN. (MWH): 483154.0 4601484.0 l 104768259.0  ;

8. GROSS THERMAL ENERGY GEN. (MWH): 1494468.0 14124361.0 323594138.5

9. UNIT AVAILABILITY FACTOR (%): 8"/ . 5 84.7 66.1

10. UNIT CAPACITY FACTOR (MDC) (%): 77.2 81.3 61.0 l

'11. UNIT FORCED OUTAGE RATE (%): 12.5 10.0 18.0 ,

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4 UNIT SHUTDOWNS DOCKET NO. 50-412 UNIT NAME BVPS Unit #2 DATE October 5,1999 COMPLETED BY David T. Jones TELEPHONE (412) 393-4962

- REPORTING PERIOD: September 1999 No. Date . Type Duration Reasen Method of Cause / Corrective Actions

p. Forced (Hours) (1) Shutting s: scheduied Down (2) Comments NONE (1) Reason (2) Method A - Equipment Failure (Explain) 1 Manuel B Maintenance or Test 2 Manuel Trip / Screm C - Refueling 3. Automatic Trip / Scram D Reguistory Restricuan 4- Continuation E operator TraininD / License Examination 5 other(Expisin)

F Administrative

' G - operational Error (Explain)

H other(Explain)

SUMMARY

The Unit began the report period operating at a nominal value of 100% output and continued to operate at a nominal value of 100% output until 09/28/99. On 09/28/99 with unusually warm and humid atmospheric conditions present, a load reduction to approximately 99% output was commenced at 1729 hours0.02 days <br />0.48 hours <br />0.00286 weeks <br />6.578845e-4 months <br /> to stabilize Condenser hotwell conditions due to the heat transfer capability of the Cooling Tower being slightly below design. Once conditions in the Condenser hotwell had improved, the Unit was returned to a nominal value of 100%' output at 2038 hours0.0236 days <br />0.566 hours <br />0.00337 weeks <br />7.75459e-4 months <br /> on 09/28/99. The Unit continued to operate at a nominal value of 100% output for the remainder of the report period.

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, , ' OPERATING DATA REPORT DOCKET NO.: 50-412 UNIT NAME: BVPS UNIT #2 l

' REPORT DATE: 10/05/09 l COMPLETED BY: CAVID T. JONES TELEPHONE: (412) 393-4962 la. REPORTING PERIOD: SEPTEMBER 1999 l Notes

1. DESIGN ELECTRICAL RATING (Net Mwe): 836

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2. ' MAX. DEPENDABLE CAPACITY (Net Mwe): 820 [,,,,,,,,,,,,,,,,,*

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THIS MONTH YEAR TO DATE CUMULATIVE 3a. -HOURS IN REPORTING PERIOD: 720.0 6551.0 104054.0

3. NO. OF HRS.-REACTOR WAS CRITICAL: 720.0- 5288.4 82884.7 l

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4. SERVICE HOURS GENERATOR ON LINE: 720.0' 5241.9 82271.0 1

5. UNIT RESERVE SHUTDOWN HOURS: ' O.0 0.0 0.0 l

6. NET ELECTRICAL ENERGY DEN. (MWH): 596299.0 4240964.0 63641546.0 j

7. GROSS ELECT. ENERGY GEN. tetWH) : 627598.0 4479604.0 67336556.0

8. GROSS THERMAL ENERGY GEN.-(MWH):- 1904695.0 13604839,0 206109594.0

9. UNIT AVAILABILITY FACTOR (%): 100.0 80.0 79.1

10. UNIT CAPACITY FACTOR (MDC) (%): 101.0 78.9 74.3

11. UNIT FORCED OUTAGE RATE (%): 0.0- 6.2 12.0 i

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