ML20138C180

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Monthly Operating Rept for Sept 1985
ML20138C180
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 09/30/1985
From: Kanick B, Sisk D, Thornberry R
PACIFIC GAS & ELECTRIC CO.
To:
NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8512120492
Download: ML20138C180 (8)
v • d • e


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. . OPERATING DATA REPORT DOCKET NO. 50-275 DATE 10/01/85 COMPLETED BY Bob Kanick TELEPHONE (805)595-7351 OPERATING STATUS

1. Unit Name: Diablo Canyon Unit 1
2. Reporting Period: September 1985
3. Licensed Thernri Power (MWt): 3338
4. Nameplate Rating (Gross MWe): 1137 e
5. . Design Electrical Rating (Net MWe): 1086
6. Maximum Dependable Capacity (Gross MWe): 1125**
7. Maximum Dependable Capacity (Net MWe): 1073**
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:

N/A

9. Power Level To Which Restricted, If Any (Net MWe): N/A
10. Reasons For Restrictions, If Any: None This Month Yr-to-Date Cumulative
11. Hours In Reporting Period 720.0 3525.3 3525.3*

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12. Number Of Hours Reactor Was Critical 720.0 3469.0 3469.0*
13. Reactor Reserve Shutduwn Hours 0.0 0.0 0.0
14. Hours Generator On-Line 720.0 3454.5 3454.5*
15. Unit Reserve Shutdown Hours 0.0 0.0 0.0
16. Gross Thennal Energy Generated (MWH) 2374552. 10948280 10948280
17. Gross Electrical Energy Generated (MWH) 789100 3656032 3656032
18. Net Electrical Energy Generated (MWH) 752734 3478272 3478272

'19. Unit Service Factor 100.0 98.0 98.0

20. Unit Availability Factor 100.0 98.0 98.0
21. Unit Capacity Factor (Using MDC Pet) 97.4 92.0 92.0
22. Unit Capacity Factor (Using DER Net) 96.3 90.9 90.9
23. Unit Forced Outage Rate 0.0 2.0 2.0

'24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

25. If Shut Down At End Of Report Period, Est. Date of Start-up: N/A
26. Units In Test Status (Prior to Connercial Operation): N/A

, , , i

  • 'As of comercial operation on 5-7-85 at 0243.
    • These values are predictions - actual values are to be determined by operating experience during the first year of councrcial. operation.

8512120492 DR 850930 ADCCK 05000275 PDR DC0455 -136- /}

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. OPERATING DATA REPORT DOCKET N0. 50-323 DATE 10/01/85 COMPLETED BY Bob Kanick TELEPHONE (805)595-7351 OPERATING STATUS

1. Unit Name: Diablo Canyon Unit 2
2. Reporting Period: September 1985
3. Licensed Thermal Power (MWt): 3411
4. Nameplate Rating (Gross MWe): 1164
5. Design Electrical Rating (Net MWe): 1119
6. Maximum Dependable Capacity (Gross MWe): 1145***
7. Maximum Dependable Capacity (Net MWe): 1093***
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:

N/A

9. Power Level To Which Restricted, If Any (Net MWe): N/A
10. Reasons For Restrictions, If Any: None This Month Yr-to-Date Cumulative
11. Hours In Reporting Period 720.0 3672* 3672*
12. Number Of Hours Reactor Was Critical 0.0 206.3_ 206 7
13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0
14. Hours Generator On-Line 0.0 0.0 0.0*
15. Unit Reserve Shutdown Hours 0.0 0.0 0.0
16. Gross Thermal Energy Generated (MWH) 0.0 5047 5047*
17. Gross Electrical Energy Generated (MWH) 0.0 0 0*
18. Net Electrical Energy Generated (MWH) -4, C - 54,565 - 54,565*
19. Unit Service Factor N/A**
20. Unit Availability Factor N/A**
21. Unit Capacity Factor (Using MDC Wet) N/A**
22. Unit Capacity Factor (Using DER Net) N/A**
23. Unit Forced Outage Rate N/A**
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

N/A

25. If Shut Down At End Of Report Period, Est. Date of Start-up: October,1985
26. Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY July 1985 August 1985 INITIAL ELECTRICITY October 1985 COMMERCIAL OPERATION January 1986

  • Cumulative totals started on the April 26, 1985 (Date of effectiveness of Low Power License).
    • These sections not applicable until comencement of commercial operation.
      • These values are predictions - actual values are to be determined by operating experience during the first year of comercial operation.

DC0455 -137-

. AVERAGE DAILY UNIT POWER LEVEL DOCKET N0. 50-275 UNIT Diablo Canyon Unit 1 DATE 10/01/85 COMPLETED BY Bob Kanick TELEPHONE (805)595-7351 MONTH September 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY FGER LEVEL (MWE-NET) (MdE-NET) 1 1041 17 1062 2 1066 18 1062 3 1066 19 1058 4 1061 20 1058 5 1053 21 1062 6 921 22 1045 7 810 23 1062 8 1061 24 1062 9 1058 25 1062 10 1057 26 1062 11 1062 27 1058 12 1058 28 1058 13 1061 29 1057 14 1062 30 1058 15 1041 16 1058 INSTRUCTI0fG 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.

DC0455 -138-

. AVERAGE DAILY UNIT POWER LEVEL DOCKET N0. 50-323 UNIT Diablo Canyon Unit 2 DATE 10/01/85 COMPLETED BY Bob Kanick TELEPHONE (805)595-7351 MONTH September 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (tHE-NET) (ISE-NET) 1 -17 17 -5 2 -14 18 -5 3 -14 19 -5 4 -10 20 -5 5 -5 21 -3 6 -4 22 -3 7 -4 23 -5 8 -4 24 -5 9 -5 25 -5 10 -5 26 -5 11 -5 27 -5 12 -5 28 -5 13 -5 29 -4 14 -4 30 -5 15 -2 16 -5 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.

DC0455 -139-

l UNIT SHUTDOWNS AND POWER REDUCTIONS -

PAGE 1 0F 1 DOCKET NO. 50-275 UNIT NAME Diablo Canyon IJnit 1 .

DATE 10/03/85 COMPLETED BY D.P. SISK ,

REPORT MONTH SEPTEMBER 1985 TELEPHONE (805)595-7351 Licensee Cause & Corrective Duration System Component 2 Methodof Event Action to No. Date Type l (Hours) Reason Shutdown Report # Code Code Prevent Recurrence No shutdowns occurred during the month of September.

'r 1 2 3 4 F: Forced Reason: Method: Exhibit G - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling 3-Automatic Scram. Event Report (LER) File D-Regulatory Restriction 4-Continuation from (NUREG-1022)

E-Operator Training & License Examination previous month.

l F-Administrative 5-Power reduction 5 G-Operational Error (Explain) 6,7,8-N/A Exhibit I - Same Source H-Other(Explain) 9-Other l

DC0455 -140-l . . . . - . - . . .

UNIT SfUIDOWNS AND POWER REDUCTIONS PAGE 1 0F 1 DOCKET N0. 50-323 -

UNIT NAME Diablo Canyon Unit 2 DATE 10/03/85 COMPLETED BY D.P. SISK

  • REPORT MONTH SEPTEMBER 1985 TELEPHONE (805)595-7351 Licensee System Compon nt Cause & Corrective Duration 2 Methodof Event Action to No. Date Type l (Hours) Reason Shutdown Report # Code Code Prevent Recurrence This report is not applicable until initial electrical production.

1 2 3 4 F: Forced Reason: Method: Exhibit G - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling 3-Automatic Scram. Event Report (LER) File D-Regulatory Restriction 4-Continuation from (NUREG-1022)

E-Operator Training & License Examination previous month.

F-Administrative 5-Power reduction 5 G-Operational Error (Explain) 6,7,8-N/A Exhibit I - Same Source H-Other (Explain) 9-0ther DC0455 -141-

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PACIFIC GAS AND E LE C T RIC C O M PANY pgg . DIABLO CANYON POWER PLANT I PO. Box 56 Avila Beach. Cahfomia 93424 * (805) 595-7351 R.C. THORNBERRY PLANT MANA3ER October 7, 1985 Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, DC 20555 RE: Docket No. 50-275 and 50-323 License No. DPR-80 and DPR-82 Monthly Operating Report for September,1985 Gentlemen:

Enclosed are the completed monthly operating report forms for Diablo Canyon Units 1 and 2 for September,1985. This report is submitted in accordance with Section 6.9.1.7 of the Units 1 and 2 Technical Specifications.

Sincerely, f0f ROBERT C. THORNBERRY RCT:lah Enclosures cc Mr. John B. Martin, Regional Administrator Region V - USNRC

.j, DC0044 1 L

MONTHLY NARRATfVE REPORT 0F OPERATION

. AND MAJOR MAINTENANCE EXPERIENCE This report describes the operating and major maintenance experience for the month of September,1985. This narrative report was prepared by the plant staff and is submitted in accordance with Section 6.9.1.7 of the Units 1 and 2 Technical Specifications.

On September 6,1985 Unit I reduced power to 35% to repair a condenser tube leak.

On September 13, 1985 Unit 2 experienced a spurious containment ventilation isolation.

On September 19, 1985 An Unusual Event was declared due to a Tsunami Warning.

Unit 1 operated this month with a unit availability factor of 100% and a unit capacity factor 97.4%. Unit 2 was in cold shutdown for the entire month due to a motor failure on Reactor Coolant Pump 2-4 on August 31, 1985.

There were no major safety related maintenance activities performed for Unit I this month. For Unit 2, the stator for Reactor Coolant Pump 2-4 was rewound and vacuum pressure impregnated (VPI). In addition, to reduce the probability of a similar failure, the stators for for Reactor Coolant Pumps 2-1 and 2-2 were vacuum pressure impregnated. Reactor Coolant Pump 2-3 had previously been rewound and vacuum pressure impregnated after a failure while it was installed in Unit 1. All three motors have been reinstalled and will be operable early in October.

No challenges to the PORVs or Steam Generator Safety Valves have been made.

No changes have been made in the Environmental Radiological Monitoring procedure, the Offsite Dose Calculation procedure, or in any radioactive waste treatment system.

DC0455 -135-

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