L-99-126, Monthly Operating Repts for Jul 1999 for Beaver Valley Power Station,Units 1 & 2.With

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Monthly Operating Repts for Jul 1999 for Beaver Valley Power Station,Units 1 & 2.With
ML20210N536
Person / Time
Site: Beaver Valley
Issue date: 07/31/1999
From: David Jones, Ostrowski K
DUQUESNE LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-99-126, NUDOCS 9908110139
Download: ML20210N536 (7)
v • d • e


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'Af Telephone (412) 393-6000 Nu ewB G,roup L-99-126 Shippingport. PA 15077-0004 August 6,1999 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 U. S. Nuclear Regulatory Conunission 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 Unit I and Unit 2 for the month of July 1999.

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

Enclosures

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cc: NRC Regional Office King of Prussia, PA

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The Nuclear Professionals X . . .-mm 9908110139 990731 PDR ADOCK 05000334 R PDR

UNIT SHUTDOWNS DOCKET NO. 50-334 l UNIT NAME BVPS Unit #1 l , , DATE August 4,1999 i COMPLETED BY David T. Jones TELEPHONE (412) 393-4962 REPORTING PERIOD: July 1999 No. Date Type Duration Reason Method of Cause / Corrective Actions F: Forced (Hours) (1) Shutting s: scheduled Down (2) Comments l NONE 1

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(1) Reneen (2) Method A Equipment Failure (Expimin) 1. Manuel B - Maintenance or Test 2. Manuel Trip / Screm l C Refueling 3 Automatic Trip / Scram o Regulatory Restriction 4 - Contmustion E operator Training i Ucense Enemination 5. other (Expimin)

F - Administrative G - operational Error (Emplem)

H other(Empimin)

SUMMARY

The Unit began the report period operating at a nominal value of 100% output. At 1843 hours0.0213 days <br />0.512 hours <br />0.00305 weeks <br />7.012615e-4 months <br /> on 07/13/99, output was reduced by approximately 1% to prevent high Tavg alarms pending completion of calibration of the median Delta-T/Tavg temperature loops. Following completion of calibration of the median Delta-T/Tavg temperature loops, output was retumed to a nominal value of 100% at 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> on 07/14/99.

The Unit continued to operate at a nominal value of 100% output until 07/31/99. With unusually warm and humid atmospheric conditions present, incremental load reductions to approximately 98% output were commenced at 1640 hours0.019 days <br />0.456 hours <br />0.00271 weeks <br />6.2402e-4 months <br /> to stabilize Condenser hotwell conditions due to the heat transfer capability of the Coolmg Tower being slightly below design. Once conditions in the Condenser hotwell had improved, the Unit was retumed to a nominal value of 100% output st 0217 hours0.00251 days <br />0.0603 hours <br />3.587963e-4 weeks <br />8.25685e-5 months <br /> on 08/01/99.

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4 OPERATING DATA REPORT DOCKET NO.: 50-334 UNIT NAME: BVPS UNIT 61 REPORT DATE: 08/05/99 COMPLETED BY: DAVID T. JONES TELEPHONE: (412) 393-4962

~ 1a. REPORTING PERIOD: JULY 1999

  • Notes *
1. DESIGN ELECTRICAL RATING (Net Mwe): 835 [ [
2. MAX. DEPENDABLE CAPACITY (Net Mwe): 810 [,,,,,,,,,,,,,,,,[

THIS MONTH YEAR TO DATE CUMULATIVE 3a. HOURS IN REPORTING PERIOD: 744.0 5087.0 203807.0

3. NO. Or HRS. REACTOR WAS CRITICAL: 744.0 4243.0 133523.0
4. SERVICE HOURS GENERATOR ON LINE: 744.0 4174.2 131205.9
5. UNIT RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0
6. NET ELECTRICAL ENERGY GEN. (MWH): 601300.0 3261100.0 96946992.0
7. GROSS ELECT. ENERGY GEN. (MWH): 637710.0 3478340.0 103645115.0
8. GROSS THE1U4AL ENERGY GEN. (MWH): 1967597.0 10671282.0 320141059.5
9. UNIT AVAILABILITY FACTOR (%): 100.0 82.1 65.9
10. UNIT CAPACITY FACTOR (MDC) (%): 99.8 79.1 60.7
11. UNIT FORCED OUTAGE RATE (%): 0.0 11.2 18.1 l 1

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UNIT SHUTDOWNS DOCKET NO. 50 412 UNIT NAME BVPS Unit e2 i DATE August 4,1999 COMPLETED BY David T. Jones TELEPHONE (412) 393 4962 i REPORTING PERIOD: Julv 1999 l

l l No. Date Type Duration Reason Method of Cause / Corrective Actions j p.Foroed (Hours) (1) Shutting s: scheduled Down (2) Comments 7 990718 F 141.2 A 1 The Unit was shutdown to cold shutdown  !

due to inoperability of the 2 2 Emergency .

Diesel Generator following a loss of the Emergency 4KV Bus *DF* (see the

" Summary" below for additional details).

The cause for the failure was attributed to a faulty control relay in the voltage regulator on the 2 2 EDG, which was replaced.

8 990723 F 43.4 B 4 The Unit remained shutdown to complete .

cleaning of the Service Water System side of the fouled 21 Emergency Diesel Generator Heat Exchanger caused by accumulation of dead zebra mussels following a clamicide (toxic kill) injection.

9 990725 F 49.4 H 4 The Unit remained shutdown to complete startup activities following resolution of items 7 and 8 above.

(1) Resean _

(2) Method A Equipment Feliure(Eglein) 1 Manuel B MaintenanceorTest 2. Manuel Trip / Scram C . Refuelin0 3 Automatic Trip / Screm D - Regulatory Restriellen 4.Continuehon E . operator Training / unente Eenmmellon 5. other (Explain)

F . Administraeve o operationalErver(Eglein)

H . other (Egloir)

SUMMARY

The Unit began the report period operating at a nominal value of 100% output. On 07/03/99 with unusually- warm and humid atmospheric conditions present, incremental load reductions to approximately 92% output were commenced at 1330 hours0.0154 days <br />0.369 hours <br />0.0022 weeks <br />5.06065e-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 retumed to a nominal value of 100% output at 0608 hours0.00704 days <br />0.169 hours <br />0.00101 weeks <br />2.31344e-4 months <br /> on 07/04/99 With unusually warm and humid atmospheric conditions still present during the month, additional incremental load reductions were made on the following dates and times:

UNIT SHUTDOWNS DOCKET No. 50-412 UNIT NAME BVPS Unit #2 DATE August 4,1999 COMPLETED BY David T. Jones TELEPHONE (412) 393-4962 REPORTING PERIOD: July 1999 l

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SUMMARY

(continued):

Date & Time Started Min. Outout Achieved Date & Time Retumed to 100%

07/04/99 at 1023 hours0.0118 days <br />0.284 hours <br />0.00169 weeks <br />3.892515e-4 months <br /> 90 % 07/05/99 at 0616 hours0.00713 days <br />0.171 hours <br />0.00102 weeks <br />2.34388e-4 months <br /> 07/05/99 at 0920 hours0.0106 days <br />0.256 hours <br />0.00152 weeks <br />3.5006e-4 months <br /> 93% 07/06/99 at 0209 hours0.00242 days <br />0.0581 hours <br />3.455688e-4 weeks <br />7.95245e-5 months <br /> 07/06/99 at 1235 hours0.0143 days <br />0.343 hours <br />0.00204 weeks <br />4.699175e-4 months <br /> 97% 07/06/99 at 2133 hours0.0247 days <br />0.593 hours <br />0.00353 weeks <br />8.116065e-4 months <br /> 07/09/99 at 1545 hours0.0179 days <br />0.429 hours <br />0.00255 weeks <br />5.878725e-4 months <br /> 94 % 07/09/99 at 2056 hours0.0238 days <br />0.571 hours <br />0.0034 weeks <br />7.82308e-4 months <br /> The Unit continued to operate at a nominal value of 100% output until 07/16/99. With unusually warm and humid atmospheric conditions present, incrementalload reductions to approximately 93% output were commenced at 1516 hours0.0175 days <br />0.421 hours <br />0.00251 weeks <br />5.76838e-4 months <br /> to stabilize Condenser hotwell conditions due to the heat transfer '

capability of the Cooling Tower being slightly below design. At 1912 hours0.0221 days <br />0.531 hours <br />0.00316 weeks <br />7.27516e-4 months <br /> on 07/16/99 with the Unit at approximately 93% output, a power reduction was commenced due to loss of the Train "B" Emergency 4KV Bus "DF" which occurred at 1729 hours0.02 days <br />0.48 hours <br />0.00286 weeks <br />6.578845e-4 months <br /> during testing of the 2-2 Emergency Diesel Generator (EDG) earlier in the day. The shutdown was halted at approximately 65% output on 07/16/99 at 2218 hours0.0257 days <br />0.616 hours <br />0.00367 weeks <br />8.43949e-4 months <br /> following restoration of the Emergency "DF" Bus. With the cause of the loss of the Emergency "DF" Bus still unknown and the 2-2 EDG still inoperable, the Unit commenced to shutdown to cold shutdown at 2021 hours0.0234 days <br />0.561 hours <br />0.00334 weeks <br />7.689905e-4 months <br /> on 07/17/99. The Unit was removed from the electrical grid at 0113 hours0.00131 days <br />0.0314 hours <br />1.868386e-4 weeks <br />4.29965e-5 months <br /> on 07/18/99. Mode 2 was entered at 0140 hours0.00162 days <br />0.0389 hours <br />2.314815e-4 weeks <br />5.327e-5 months <br />, Mode 3 was entered at 0206 hours0.00238 days <br />0.0572 hours <br />3.406085e-4 weeks <br />7.8383e-5 months <br />, Mode 4 was entered at 1030 hours0.0119 days <br />0.286 hours <br />0.0017 weeks <br />3.91915e-4 months <br />, and Mode 5 was entered at 1723 hours0.0199 days <br />0.479 hours <br />0.00285 weeks <br />6.556015e-4 months <br /> on 07/18/99.

On 07/23/99 at 2225 hours0.0258 days <br />0.618 hours <br />0.00368 weeks <br />8.466125e-4 months <br />, the 2-2 EDG was declared operable following resolution of the cause for the loss of the Emergency "DF" Bus. However, additional outage time was needed to complete cleaning of the Service Water System side of the fouled 2-1 EDG Heat Exchanger. This was completed at 1746 hours0.0202 days <br />0.485 hours <br />0.00289 weeks <br />6.64353e-4 months <br /> on 07/25/99. The Unit commenced to heat-up for plant startup. Mode 4 was entered at 1206 hours0.014 days <br />0.335 hours <br />0.00199 weeks <br />4.58883e-4 months <br /> and Mode 3 was entered at 1938 hours0.0224 days <br />0.538 hours <br />0.0032 weeks <br />7.37409e-4 months <br /> on 07/26/99. Mode 2 was entered at 1255 hours0.0145 days <br />0.349 hours <br />0.00208 weeks <br />4.775275e-4 months <br />, the Reactor was taken critical at 1353 hou.% Mode 1 was entered at 1444 hours0.0167 days <br />0.401 hours <br />0.00239 weeks <br />5.49442e-4 months <br />, and the Unit was synchronized to the electncal grid at 1912 hours0.0221 days <br />0.531 hours <br />0.00316 weeks <br />7.27516e-4 months <br /> on 07/27/99. Output was then escalated towards 100%.

With unusually warm and humid atmospheric conditions present, the escalation to full power was halted at approximately 99% output, and incremental load reductions to approximately 96% output were commenced at 1733 hours0.0201 days <br />0.481 hours <br />0.00287 weeks <br />6.594065e-4 months <br /> on 07/28/99. This was done 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 retumed to approximately 99% output at 0205 hours0.00237 days <br />0.0569 hours <br />3.38955e-4 weeks <br />7.80025e-5 months <br /> on 07/29/99. The Unit remained at approximately 99% output until 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br /> on 07/29/99 when output was retumed to a nomenal value of 100%. This was done at the request of Duquesne Light System Operations for load following.

UNIT SHUTDOWNS DOCKET NO. 50-412 UNIT NAME BVPS Unit #2

  • ' DATE Auodst 4,1999 COMPLETED BY David T. Jones

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TELEPHONE (412) 393-4962 REPORTING PERIOD: July 1999

SUMMARY

(continued):

With unusually warm and humid atmospheric conditions still present, incremental load reductions to approximately 97.5% output were commenced at 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br /> on 07/29/99 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 retumed to a nominal value of 100% output at 0107 hours0.00124 days <br />0.0297 hours <br />1.76918e-4 weeks <br />4.07135e-5 months <br /> on 07/30/99. With unusually warm and humid atmospheric conditions still present, incremental load reductions to approximately 90% output were commenced at 1020 hours0.0118 days <br />0.283 hours <br />0.00169 weeks <br />3.8811e-4 months <br /> on 07/30/99 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, output was escalated to approximately 95% at 0009 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> on 07/31/99. Escalation of output was halted at approximately 95% to permit post-maintenance testing of the "C" Atmospheric Steam Dump Valve.

Testing was completed and the load restriction was removed at 1705 hours0.0197 days <br />0.474 hours <br />0.00282 weeks <br />6.487525e-4 months <br /> on 07/31/99.

Coincidentally with output at approximately 95% and unusually warm and humid atmospheric conditions still pretent, incrementalload reductions to approximately 83% output were commenced at 1202 hours0.0139 days <br />0.334 hours <br />0.00199 weeks <br />4.57361e-4 months <br /> on 07/31/99 to stabilize Condenser hotwell conditiotis 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 retumed to a nominal value of 100% output at 0323 hours0.00374 days <br />0.0897 hours <br />5.340608e-4 weeks <br />1.229015e-4 months <br /> on 08/01/99.

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OPERATING DATA REPORT j . -

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DOCKET NO.: 50-412 UNIT MAME: BVPS UNIT 42 (

REPORT DATE: 08/05/99 I j CONPLETED BY DAVID T. JONES TELEPHONE: (412) 393-4962 l'

l' la. REPORTING PERIOD: JULY 1999

  • Notes
  • 1 DESIGN ELECTRICAL RATING (Not Mwe): 836 *

[

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

l THIS MONTH YEAR TO DATE CUMtJ,ATIVE l 3a. HOURS IN REPORTING PERIOD: 744.0 5087.0 *J2590.0

'3. NO. OF HRS. REACTOR WAS CRITICAL: 516.2 3824.4 81420.7

4. SERVICE HOURS GENERATOR ON LINE: 510.0 3777.9 80807.0
5. UCIT RESERVE SHUTDOWN HOURS: 0.0 0.0 0.0
6. NET ELECTRICAL ENERGY GEN. (MWH): 384124.0 3031173.0 62431755.0
7. GROS $ ELECT.-ENERGY GEN. (MWH): 410618,0 3206124.0 66063076.0
8. GROSS THERMAL ENERGY GEN. (MWH): 1271085.0 9731891.0 202236646.0 I
9. UNIT AVAILABILITY FACTOR (%): 68.5 74.3 78.8
10. UNIT CAPACITY FACTOR (MDC) (%): 63.0 72.7 73.9
11. UNIT FORCED OUTAGE RATE (%): 31.5 8.4 12.2 l

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