ML18153B038

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Monthly Operating Repts for July 1994 for Surry Power Station Units 1 & 2.W/940810 Ltr
ML18153B038
Person / Time
Site: Surry  Dominion icon.png
Issue date: 07/31/1994
From: Mason D, Ohanlon J, Olsen C
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
94-462, NUDOCS 9408190196
Download: ML18153B038 (17)
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Text

e e VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 August 10, 1994 U. S. Nuclear Regulatory Commission Serial No.94-462 Attention: Document Control Desk NO/RPC:vlh Washington, D. C. 20555 Docket Nos. 50-280 50-281 License Nos. DPR-32 DPR-37 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 MONTHLY OPERATING REPORT Enclosed is the Monthly Operating Report for Surry Power Station Units 1 and 2 for the month of July 1994.

Very truly yours,

<;)w~Y~

fames P. O'Hanlon Senior Vice President - Nuclear Enclosure cc: U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, N. W.

Suite 2900 Atlanta, Georgia 30323 Mr. M. W. Branch NRC Senior Resident Inspector Surry Power Station 9408190196 940731 PDR ADOCK 05000280 R PDR

e VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION MONTHLY OPERATING REPORT REPORT No. 94-07 Approved:

?riManager

41urry Monthly Operating Report No. 94-07 Page 2of 16 TABLE OF CONTENTS Section Page Operating Data Report - Unit No. 1 ..............................*..........................................................................3 Operating Data Report - Unit No. 2 ......................................................................................................... 4 Unit Shutdowns and Power Reductions - Unit No. 1.................................................................................... 5 Unit Shutdowns and Power Reductions - Unit No. 2 .................................................................................... 6 Average Daily Unit Power Level - Unit No. 1.............................................................................................. 7 Average Daily Unit Power Level - Unit No. 2 .............................................................................................. 8 Summary of Operating Experience - Unit No. 1 ......................................................................................... 9 Summary of Operating Experience - Unit No. 2 ......................................................................................... 9 Facility Changes That Did Not Require NRC Approval. .............................................................................. 1O Procedure or Method of Operation Changes That Did Not Require NRC Approval ........................................... 12 Tests and Experiments That Did Not Require NRC Approval ...................................................................... 13 Chemistry Report ............................................................................................................................. 14 Fuel Handling - Unit No. 1 ................................................................................................................... 15 Fuel Handling - Unit No. 2 ................................................................................................................... 15 Description of Periodic Test(s) Which Were Not Completed Within the Time Limits Specified in Technical Specifications ................................................................................................... 16

eurry Monthly Operating Report No. 94-07 Page 3 of 16 OPERATING DATA REPORT Docket No.: 50-280 Date: 08-02-94 Completed By: D. Mason Telephone: (804) 365-2459

1. Unit Name: .................................................. . Surry Unit 1
2. Reporting Period: ......................................... . July, 1994
3. Licensed Thermal Power (MWt): ...................... . 2441
4. Nameplate Rating (Gross MWe): ...................... . 847.5
5. Design Electrical Rating (Net MWe): ................. . 788
6. Maximum Dependable Capacity (Gross MWe): ... . 820
7. Maximum Dependable Capacity (Net MWe): ....... . 781
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:
9. Power Level To Which Restricted, If Any (Net MWe):
10. Reasons For Restrictions, If Any:

This Month YTD Cumulative

11. Hours In Reporting Period ......................... . 744.0 5087.0 189407.0
12. Number of Hours Reactor Was Critical ......... . 744.0 3585.7 127392.9
13. Reactor Reserve Shutdown Hours .............. . 0 0 3774.5
14. Hours Generator On-Line .......................... . 744.0 3548.5 125227.5
15. Unit Reserve Shutdown Hours.................... . 0 0 3736.2
16. Gross Thermal Energy Generated (MWH) ..... . 1815928.2 8067530.7 291235275.8
17. Gross Electrical Energy Generated (MWH) ... . 596590.0 2687640.0 95227188.0
18. Net Electrical Energy Generated (MWH) ....... . 573964.0 2583168.0 90410269.0
19. Unit Service Factor .................................. . 100.0% 69.8% 66.1%
20. Unit Availability Factor.............................. . 100.0% 69.8% 68.1%
21. Unit Capacity Factor (Using MDC Net) .......... . 98.8% 65.0% 61.5%
22. Unit Capacity Factor (Using DER Net) .......... . 97.9% 64.4% 60.6%
23. Unit Forced Outage Rate ........................... . 0.0% 0.7% 17.0%
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

None

25. If Shut Down at End of Report Period, Estimated Date of Start-up:
26. Unit In Test Status (Prior to Commercial Operation):

FORECAST ACHIEVED INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

.urry Monthly Operating Report No. 94-07 Page 4of 16 OPERATING DATA REPORT Docket No.: 50-281 Date: 08-02-94 Completed By: D. Mason Telephone: (804) 365-2459

1. Unit Name: .................................................. . Surry Unit 2
2. Reporting Period: ......................................... . July, 1994
3. Licensed Thermal Power (MWt): ...................... . 2441
4. Nameplate Rating (Gross MWe): ...................... . 847.5
5. Design Electrical Rating (Net MWe): ................. . 788
6. Maximum Dependable Capacity (Gross MWe): ... . 820
7. Maximum Dependable Capacity (Net MWe): ....... . 781
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:
9. Power Level To Which Restricted, If Any (Net MWe):
10. Reasons For Restrictions, If Any:

This Month YID Cumulative

11. Hours In Reporting Period .......................... 744.0 5087.0 186287.0
12. Number of Hours Reactor Was Critical .......... 744.0 4588.2 124664.5
13. Reactor Reserve Shutdown Hours ............... 0 0 328.1
14. Hours Generator On-Line ........................... 744.0 4578.5 122794.1
15. Unit Reserve Shutdown Hours ..................... 0 0 0
16. Gross Thermal Energy Generated (MWH) ...... 1815518.1 10646074.6 286321817.0
17. Gross Electrical Energy Generated (MWH) .... 594345.0 3547050.0 93492674.0
18. Net Electrical Energy Generated (MWH) ........ 572150.0 3416030.0 88748100.0
19. Unit Service Factor ................................... 100.0% 90.0% 65.9%
20. Unit Availability Factor............................... 100.0% 90.0% 65.9%
21. Unit Capacity Factor (Using MDC Net)........... 98.5% 86.0% 61.1%
22. Unit Capacity Factor (Using DER Net) ........... 97.6% 85.2% 60.5%
23. Unit Forced Outage Rate ............................ 0% 0% 13.7%
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

None

25. If Shut Down at End of Report Period, Estimated Date of Start-up:
26. Unit In Test Status (Prior to Commercial Operation):

FORECAST ACHIEVED INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

aurry Monthly Operating Report No. 94-07 Page Sot 16 UNIT SHUTDOWN AND POWER REDUCTION (EQUAL To OR GREATER THAN 20%)

REPORT MONTH: July, 1994 Docket No.: 50-280 Unit Name: Surry Unit 1 Date: 08-03-94 Completed by: Craig Olsen Telephone: (804) 365-2155 (1) (2) (3) (4) (5)

Method Duration of LER System Component Cause & Corrective Action to Date Type Hours Reason Shutting No. Code Code Prevent Recurrence Down Rx None During the Reporting Period (1) (2) (3)

F: Forced REASON: METHOD:

S: Scheduled A - Equipment Failure (Explain) 1 - Manual B Maintenance or Test 2 - Manual Scram.

C Refueling 3 - Automatic Scram.

D Regulatory Restriction 4 - Other (Explain)

E Operator Training & Licensing Examination F Administrative G Operational Error (Explain)

(4) (5)

Exhibit G - Instructions for Preparation of Data Entry Sheets Exhibit 1 - Same Source.

for Licensee Event Report (LER) File (NU REG 0161)

.urry Monthly Operating Report No. 94-07 Page 6 of 16 UNIT SHUTDOWN AND POWER REDUCTION (EQUAL To OR GREATER THAN 20%)

REPORT MONTH: July, 1994 Docket No.: 50-281 Unit Name: Surry Unit 2 Date: 08-03-94 Completed by: Craig Olsen Telephone: (804) 365-2155 (1) (2) (3) (4) (5)

Method Duration of LER System Component Cause & Corrective Action to Date Type Hours Reason Shutting No. Code Code Prevent Recurrence Down Rx None During the Reporting Period (1) (2) (3)

F: Forced REASON: METHOD:

S: Scheduled A - . Equipment Failure (Explain) 1 - Manual B Maintenance or Test 2 - Manual Scram.

C Refueling 3 - Automatic Scram.

D Regulatory Restriction 4 - Other (Explain)

E Operator Training & Licensing Examination F Administrative G Operational Error (Explain)

(4) (5)

Exhibit G - Instructions for Preparation of Data Entry Sheets Exhibit 1 - Same Source.

for Licensee Event Report (LER) File (NUREG 0161)

.urry Monthly Operating Report No. 94-07 Page ?of 16 AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-280 Unit Name: Surry Unit 1 Date: 08-02-94 Completed by: Pat Kessler Telephone: 365-2790 MONTH: July, 1994 Average Daily Power Level Average Daily Power Level Day (MWe- Net) Day (MWe-Net) 1 779 17 767 2 777 18 767 3 776 19 769 4 776 20 768 5 772 21 768 6 770 22 770 7 772 23 772 8 770 24 771 9 770 25 771 10 770 26 773 11 771 27 772 12 772 28 772 13 772 29 774 14 770 30 773 15 770 31 773 16 769 INSTRUCTIONS On this format, list the average daily unit power level in MWe - Net for each day in the reporting month. Compute to the nearest whole megawatt.

.urry Monthly Operating Report No. 94-07 Page 8 of 16 AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-281 Unit Name: Surry Unit 2 Date: 08-02-94 Completed by: Pat l(essler Telephone: 365-2790 MONTH: July, 1994 Average Daily Power Level Average Daily Power Level Day (MWe- Net) Day (MWe- Net) 1 777 17 767 2 776 18 766 3 775 19 767 4 775 20 766 5 774 21 760 6 769 22 767 7 772 23 768 8 767 24 768 9 771 25 767 10 770 26 768 11 771 27 766 12 772 28 764 13 770 29 768 14 770 30 769 15 769 31 766 16 768 INSTRUCTIONS On this format, list the average daily unit power level in MWe - Net for each day in the reporting month. Compute to the nearest whole megawatt.

aurry Monthly Operating Report No. 94-07 Page 9 of 16

SUMMARY

OF OPERATING EXPERIENCE MONTH/YEAR: July, 1994 The following chronological sequence by unit is a summary of operating experiences for this month which required load reductions or resulted in significant non-load related incidents.

UNIT ONE:

07/01/94 0000 The reporting period began with the unit operating at 100% power, 815 MWe 07/31/94 2400 The reporting period ended with the unit operating at 100% power, 820 MWe UNIT Two:

07/01/94 0000 The reporting period began with the unit operating at 100% power, 815 MWe 07/31/94 2400 The reporting period ended with the unit operating at 100% power, 815 MWe

.urry Monthly Operating Report No. 94-07 Page 10 of 16 FACILITY CHANGES THAT DID NOT REQUIRE NRC APPROVAL MONTH/YEAR: July, 1994 TM S1-94-33 Temporary Modification 07-08-94 (Safety Evaluation No.94-137)

Temporary Modification (TM) S1-94-33 installed a mechanical jumper from the Unit 2 Fish Screens (FS) System at the Low Level Intake Structure to the Unit 1 FS System spray to provide an alternate water supply while Unit 1 repairs are being implemented. The FS System uses a low pressure spray of water to efficiently remove fish from the traveling screens at the circulating water pumps.

The Unit 2 FS System pump is capable of supplying an adequate flow to both units. The TM did not negatively impact the operation of the FS System. No safety-related functions or accidents analyses were affected and the margin of safety, as defined by the Technical Specifications, was not reduced. Therefore, an unreviewed safety question does not exist.

WO 294429/01 Work Order 07-08-94 (Safety Evaluation No.94-136)

Work Order 294429/01 performed an on-line temporary leak-seal repair of Unit 2 steam generator blowdown valve, 2-BD-3. The repair was implemented in accordance with Mechanical Corrective Maintenance procedure O-MCM-1918-01, "On-Line Leak Repairs."

The subject valve, which is normally closed, was sealed in the closed position. The leak-seal repair did not affect the structural integrity of the valve or the operation of blowdown system. Therefore, an unreviewed safety question does not exist.

WO 294755/01 Work Order 07-14-94 (Safety Evaluation No.94-140)

Work Order 294755/01 performed an on-line temporary leak-seal repair of Unit 2 steam generator blowdown valve, 2-BD-52. The repair was implemented in accordance with Mechanical Corrective Maintenance procedure O-MCM-1918-01, "On-Line leak Repairs."

The subject valve, which is normally closed, was sealed in the closed position. The leak-seal repair did not affect the structural integrity of the valve or the operation of blowdown system. Therefore, an unreviewed safety question does not exist.

TM S2-94-08, Revision 2 Temporary Modification 07-20-94 (Safety Evaluation No.94-135)

Temporary Modification (TM) S2-94-08, Revision 2 implemented the injection of ethanolamine (ETA) on a trial basis to help control secondary system pH and corrosion.

The TM involves only a change to secondary system water treatment and is expected to result in reduced corrosion. A review of secondary system materials confirmed their compatibility with ETA. The change does not impact the steam generator thermal hydraulic analyses, operating parameters, design transients, or analyses of postulated accident conditions. Therefore, an unreviewed safety question does not exist.

aurry Monthly Operating Report No. 94-07 Page 11 of 16 FACILITY CHANGES THAT DID NOT REQUIRE NRC APPROVAL MONTH/YEAR: July, 1994 TM S2-94-12 Temporary Modification 07-25-94 (Safety Evaluation No.94-143)

Temporary Modification (TM) S2-94-12 bypassed failed switchyard circuit breaker 53102 to restore the 500 KV switchyard to its original (less breaker 53102) ring bus configuration until the next Unit 2 refueling outage.

The TM does not negatively impact the operation of safety-related systems or prevent systems from performing accident mitigation functions. The margin of safety, as defined by the Technical Specifications, was not reduced. Therefore, an unreviewed safety question does not exist.

.urry Monthly Operating Report No. 94-07 Page 12 of 16 PROCEDURE OR METHOD OF OPERATION CHANGES THAT DID NOT REQUIRE NRC APPROVAL MONTHNEAR: July, 1994 1[2]-EPT-1804-01 Electrical Periodic Test Procedures 07-13-94 1[2]-EPT-1804-02 (Safety Evaluation No.94-139) 1[2]-EPT-1804-03 1[2]-EPT-1804-04 Electrical Periodic Test Procedures, 1[2]-EPT-1804-01, "Bus 1A[2A] Undervoltage Protective Relay Testing", 1[2]-EPT-1804-02, "Bus 18[28] Undervoltage Protective Relay Testing", 1[2]-EPT-1804-03, "Bus 1C[2C] Undervoltage Protective Relay Testing", and 1[2]-EPT-1804-04, "KF Underfrequency Protective Relay Testing for Bus 1A[2A], 18[28],

and 1C[2C]", were developed to provide instructions for lifting electrical leads and installing electrical jumpers to facilitate testing of the normal station service bus undervoltage and underfrequency protective relays.

These upgraded procedures will be performed with the applicable unit at cold shutdown.

The performance of the subject procedures will not affect the operation of safety-related systems and will not reduce the margin of safety, as defined by the Technical Specifications. Therefore, an unreviewed safety question does not exist.

1[2]-0PT-CT-1 02 Operations Periodic Test Procedures 07-27-94 (Safety Evaluation No.94-145)

Operations Periodic Test Procedures, 1[2]-0PT-CT-102, "Preparation, Alignment, and Restoration for Type A Test", were revised to provide instructions for the installation of temporary modifications to defeat Hi Hi Consequence Limiting Safeguards (CLS) and Emergency Safeguards Safety Injection (SI) (Hi CLS only) circuitry trains "A" and "8" to prevent an inadvertent engineered safeguards features actuation during the performance of containment integrated leak rate testing, performed pursuant to 10 CFR 50, Appendix J.

The procedures will be performed with the applicable unit at cold shutdown, when the SI/CLS automatic actuation is not required. Double verification is required to ensure the affected equipment and controls are returned to their normal configuration following the testing. Therefore, an unreviewed safety question does not exist.

.urry Monthly Operating Report No. 94-07 Page 13 of 16 TESTS AND EXPERIMENTS THAT DID NOT REQUIRE NRC APPROVAL MONTH/YEAR: July, 1994 None During the Reporting Period

.urry Monthly Operating Report No. 94-07 Page 14 of 16 CHEMISTRY REPORT MONTH/YEAR: July, 1994 Unit No. 1 Unit No. 2 Primarv Coolant Analvsis Max. Min. Avg. Max. Min. Avg.

Gross Radioactivity, µCi/ml 3.22E-1 2.29E-1 2.73E-1 2.02E-1 9.27E-2 1.41 E-1 Suspended Solids, ppm <0.1 <0.1 ,:;;,0.1 <0.1 <0.1 <0.1 Gross Tritium, µCi/ml 3.12E-1 3.02E-1 3.05E-1 1.89E-1 8.37E-2 1.40E-1 1131, uCi/ml 4.22E-4 2.95E-4 3.61E-4 1.63E-4 7.18E-5 1.30E-4 113111133 0.07 0.06 0.06 0.10 0.06 0.08 Hvdrogen, cc/kg 41.9 30.5 36.4 45.8 27.6 36.0 Lithium, com 2.32 2.08 2.18 2.34 2.07 2.20 Boron - 10, com* 198.5 185.2 191.6 119.8 99.6 109.1 Oxygen, (DO), ppm ,:;;,0.005 ,:;;,0.005 ,:;;,0.005 .s_0.005 .s_0.005 ,:;;,0.005 Chloride, ppm <0.050 0.003 0.006 <0.050 ,:;;,0.001 0.004 pH at 25 degree Celsius 6.78 6.48 6.68 7.12 6.80 6.97

None

-urry Monthly Operating Report No. 94-07 Page 15 of 16 FUEL HANDLING UNITS 1 & 2 MONTH/YEAR: July, 1994 New or Spent Number of New or Spent Fuel Shipment Date Stored or Assemblies Assembly ANSI Initial Fuel Shipping Number Received per Shipment Number Number Enrichment Cask Activity No Fuel Received or Stored During the Reporting Period.

-Surry Monthly Operating Report No. 94-07 Page 16 of 16 DESCRIPTION OF PERIODIC TEST(S) WHICH WERE NOT COMPLETED WITHIN! THE TIME LIMITS SPECIFIED IN TECHNICAL SPECIFICATIONS MONTH/YEAR: July, 1994 None During the Reporting Period.

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