ML20141F912

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Monthly Operating Repts for Oct 1985
ML20141F912
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 10/31/1985
From: Kanick B, Thornberry R
PACIFIC GAS & ELECTRIC CO.
To:
NRC
References
DC0044-1, DC0455, DC44-1, DC455, NUDOCS 8601090593
Download: ML20141F912 (8)
v • d • e


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, MONTHLY NARRATIVE REPORT 0F OPERATION AND MAJOR MAINTENANCE EXPERIENCE This report describes the operating and major maintenance experience for the month of October,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 October 7, 1985 Reactor Coolant Pump 2-4 rewind complete On October 14, 1985 Unit I reduced power to clean waterbox On October 16, 1985 Received a Level V Notice of Violation as part of NRC Inspection Reports 50-275/85-32 and 50-323/85-29 involving an unauthorized entry into a class 1 material storage area On October 20,1985 Unit 2 on power grid for first time (initial electricity)

On October 21,1985 Unit 2 separated from grid for generator testing On October 22,1985 Unit 2 was paralleled to the grid On October 22,1985 Unit 2 experienced a reactor trip On October 23, 1985 Unit 2 was paralleled to the grid On October 24,1985 Unit 2 experienced a reactor trip On October 25, 1985 Unit 2 paralleled to the grid On October 25,1985 Unit 1 experienced a reactor trip On October 26, 1985 Unit I was paralleled to the grid On October 28, 1985 Unit I reduced power for maintenance On October 30,1985 Unit 1 off grid for maintenance On October 31, 1985 Unit 2 experienced a turbine trip Unit 1 operated this month with a unit availability factor of 91.3% and a unit capacity factor of 84%. At the start of the month, Unit 2 was in cold shutdown to repair Reactor Coolant Pump 2-4 for the first week of October. On October 8, startup testing was resumed.

There were no major safety related maintenance activities performed for Unit 1 or Unit 2 in the month of October,1985. Reactor Coolant Pump 2-4 was rewound and vacuum pressure impregnated.

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 m radioactive waste treatment system.

8601090593 PDR 851031 ADOCK 05000275 PDR DC0455 -105-

.-_ .. . - - - . . . _ - - . . _~ - ,

OPERATING DATA REPORT i DOCKET N0. 50-275 i DATE 11/12/85

COMPLETED BY Bob Kanick TELEPHONE (805)595-7351 i  !

OPERATING STATUS

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

N/A 4

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 .

-745.0 4270.3 4270.3*

12. Number Of Hours Reactor Was' Critical 703.5 4172.5 4172.5*

4

13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0
14. Hours Generator On-Line 680.0 4134.5 4134.5*
15. Unit Reserve Shutdown Hours 0.0 0.0 0.0
16. Gross Thermal Energy Generated (MWH) 2163216 13111500 13111500
17. Gross Electrical Energy Generated (MWH) 709800 7 365832- 4365832
18. Net Electrical Energy Generated (MWH) 671259 4149531 4149531
19. Unit Service Factor _ 91.3 96.8 96.8
-20. Unit-Availability Factor 91.3 96.8 96.8 r
21. Unit Capacity Factor (Using MDC Net) 84.0 90.6 90.6
22. Unit Capacity Factor (Using DER Net) 83.0- 89.5 89.5
23. Unit Forced Outage Rate 8.7 3.2 - 3.2
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

1

-25. If' Shut Down At End Of Report Period, Est. Date of Start-up: November 8, 1985 4

26. Units In Test' Status (Prior to Commercial Operation): N/A

'* As of _ commercial operation on 5-7-85 at 0243. -

    • These values are predictions - actual values are to be determined by operating.

s experience-during the first year of commercial operation.

DC0455 -

-106- ,

l-

. _ . . , . _ , . . - . ~. _ , . , _ _ ~. - . . ~ _ - . _ . - _ - . . . . _ . - _ _

OPERATING DATA REPORT DOCKET N0. 50-323 DATE 11/12/85 COMPLETED BY Bob Kanick TELEPHONE (805)595-7351 OP$ RATING STATUS

1. Unit Name: Diablo Canyon Unit 2 2 .- Reporting Period: October 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, i 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 ,

1 11. Hours In Reporting Period . 745.0- 4417* 4417*

12. Number Of Hours Reactor Was Critical 536.3 742.5 742.5*

!- 13. Reactor Reserve Shutdown -Hours 0.0 0.0 0.0

14. Hours Generator On-Line 215.3 215.3 215.3*
15. Unit Reserve Shutdown Hours 0.0 0.0 0.0 ,

! 16. Gross Thermal Energy Generated (MWH) 229128 234175* 234175* *

17. Gross Electrical Energy Generated (MWH) 50900 50900 -50900*
18. Net Electrical Energy Generated (MWH) 24260 - 30,305 30,305*

l 19. Unit Service. Factor . -N/A**

i

20. Unit Availability Factor. N/A**

' 21. UnitCapacityFactor(UsingMDCNet) N/A**  !

i ~22. Unit-Capacity Factor (Using DER Net) N/A**  ;

1 23. Unit Forced Outage Rate N/A**  !

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

j N/A

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

~

Forecast Achieved  ;

-INITIAL CRITICALITY July 1985 August 1985 <

, INITIAL ELECTRICITY October 1985 October 1985 -

COPMERCIAL OPERATION January 1986 1

  • Cumulative totals started on the April 26,1985 -(Date of effectiveness of Low Power

? License).

    • These sections not applicable until commencement of commercial operation.

i *** These values are predictions - actual values are to be determined by operating experience. during the first year of commercial operation. '

DC0455 -107- I

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._,~,.,..,,,u,_, - _ , . _ , . . , , _ , . , _ ,

. 1 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-275 UNIT Diablo Canyon Unit 1 t

DATE 11/04/85 COMPLETED BY Bob Kanick TELEPHONE (805)S95-7351 t

l MONTH October 1985

, DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

(MWE-NET) (MWE-NET)

-1 1054 17 1061 2 1062 18 1052 3 1058 19 1049  ;

-4 1062 20 1027 5 1058 21 1047 6 1041 22 1047 7- 1050 23 1048 8 1066 24 1052 9 1062 25 565 10 1046 26 61 ,

11 1054 27 967 12 875 .28 732 I 13 966 29 683 -

i 14 938 30 236 l

! 15 955 31 -49  ;

16 1044  ;

l-

- INSTRUCTIONS i

On this fornat, list the average daily unit power level in MWe-Net for each day in the

~

! reporting month. Compute to the nearest whole megawatt. l t

DC0455 -108- ,

l

, ,.,# _ ..,_ -- - _. , - , , - . , , _ . _ ,.,,_....-_,.m-, ,-._-y- , ,,, . , , , . . ,

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AVERAGE DAILY UNIT POWER LEVEL DOCKET N0. 50-323 UNIT Diablo Canyon Unit 2 DATE 11/04/85 COMPLETED BY Bob Kanick TELEPHONE (805)595-7351 MONTH October 1985 l

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (NE-ltT) (lWE-IRT) 1 -5 17 -35 2 -5 18 -37 3 -10 19 -37 4 -24 20 43 5 -40 21 27 6 -42 22 54 7 -39 23 130 8 -37 24 ~97 9 25 63 10 -38 26 225 11 -38 27 233 12 -38 28 210 13 -37 29 202 14 -38 30 222 15 -27 31 98 ~

16 -28 INSTRUCTIONS i

0'n 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 . 109-

UNIT SHbTDOWNS Al0 POWER REDUCTIONS.

PAGE 1 0F.,1. DOCKET NO. 50-275:

c 7

' UNIT NAME Diablo Canyon Unit 1 i DATE 11/08/85-i- COMPLETED BY- D.P. SISK-l REPORT MONTH ~ 0CTOBER 1985  : TELEPHONE (805)S95-7351 Licensee System Component Cause & Corrective '

L Duration 2 Methodof Event. Action.to No. Da te . Ty m 1 (Hours) Reason Shutdown Report #- Code Code Prevent Recurrence 1 ,10/25/85  : 27.5- A 3 85-033 ED 94 Failure of comparator module caused a relay that indicates reactor coolant pump breaker position to momentarily drop out and cause a reactor trip.'. ,

signal. The comparator module failed due to.a failed capacitor. No action

was deemed appropriate to prevent' '

l < failures of a commercial grade l component. .;

2 110/30/85: S 37.5 A 1 - NA ' SG TBG Unit was shutdown to clear up. steam +

generator and condensate water chemistry after a main condensor '

tube leak.

'l 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-Other ,

1 DC0455 -110-

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UNITSHUTDOWN[S p [E og gT g g

~

3

$3 Uo canyon unit 2 '

DATE 11/12/85 COMPLETED BY D.P. SISK REP)RT MONTH OCTOBER 1985 TELEPHONE (805)595-7351 Licensee System Component ause & Corrective y Duration 2 Methodoj Event 4 5 Action to No. Date Type (Hours) Reason Shutdown Report # Code Code Prevent Recurrence 1 10/21 S 14.1 B 1 NA NA NA Generator Testing 2 10/22 F 15.9 G 3 85-009 NA NA Station test technician inadvertently actuated the current test block of the main generator differential relay causing a turbine / reactor trip. This event was caused by a personnel error.

3 10/24 F 25.7 F 3 85-010 NA NA The reactor trip was caused by the inability of the steam generator automatic level control system to compensate for changes in the condensate booster pump lineup. To prevent recurrence, applicable operating procedures are being revised to include guidelines for the operation of condensate booster pumps during unusual plant conditions or testing affecting the condensate or feedwater systems.

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-0ther (Explain) 9-0ther DC0455 -111-

/.

.. +

PACIFIC GAS AND E LE C T RIC C O M PANY

. DIABLO CANYON POWER PLANT T PO. Box 56 Avila Beach, Cahfornia 93424 *(805) 595-7351 llgggglll R.C. THORNBERRY PLANT MANAGER November 14, 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 October,1985 Gentlemen:

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

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

't 9 ,

DC0044 1

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