ML20065R873

Monthly Operating Repts for Diablo Canyon Units 1 & 2 for Nov 1990.W/901212 Ltr

ML20065R873
Person / Time
Site:	Diablo Canyon
Issue date:	11/30/1990
From:	Dahan P, Joyce T PACIFIC GAS & ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9012190206
Download: ML20065R873 (10)

Text

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. Pacific Gas and Electric Company Diab lo Canyon Pot,er Plant P O Ba4 56 Aala Btsh. C A 93424 B05!541766

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December 12, 1990

' U.S. Nuclear Regulatory Commission

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Attn: Document Control Desk Washington, DC 20555 RE: Docket No. 50-275 and 50-323 License No. OPR-80 and DPR-82 Monthly Operating Report for November 1990 Gentlemen:

Enclosed are the completed monthly operating report forms for Diablo Canyon Units 1 and 2 for November 1990. This report is submitted in accordance with Section 6.9.1.7 of the Units 1 and 2 Technical Specifications.

Sincerly,

, , DT JDT:pgd Enclosures cc Mr. John B. Martin, Regional Administrator Region V - USNRC l

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. .. 1 MONTHLY NARRATIVE REPORT l 0F OPERATION AND MAJOR MAINTENANCE EXPERIENCE ,

I This report describes'the operating and major maintenance experience for the the month of November 1990. 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 (TS).

Narrative of Daily Significant Plant Events q On-November 1, 1990:' Unit 1 started the month at 100% power and Unit 2 started the month at 54% power due to the leak repair of the CVCS letdown line.

-On November 3, 1990: Unit 1 ramped down to 50% power for condenser i cleaning.

On November 4, 1990: Units 1 and 2 returned to 100% power.

On November 10, 1990: Unit 2 ramped down to 50%' power for condenser cleaning.

j On November 11, 1990: Unit 2 returned to 100% power.

On November 17, 1990: Unit _2 ramped down to 50% power-to scrape and clean' the circulating water pump 2-2 discharge 1 tunnel.-

I On November 18, 1990: Unit 2 returned to 100% power. .

On November 24,'1990:' Unit I ramped down to 50% power for condenser i cleaning.

On November 25, 1990: Unit 1 returned to 100% power.

On. November 30, 1990: Units 1 and Unit 2 ended the month at:100% power.

-Summary of Plant Operating Characteristics. Power Reductions and Unit Shutdowns ]

Unit 1 operated this month with a unit availability factor of 100.0% and  ;

.a unit capacity factor of 97.28%. Unit 1 reduced. power twice-this month L .for condenser cleaning. .

Unit 2-operated this month with a unit availability factor of 100.0% and i

-a; unit capacity factor of.89.7%. Unit.2 reduced power twice this month lfor cleaning of the condenser and of the circulating water pump.2-2' discharge tunnel. -

Summary-of Significant Safety Related Maintenance

' o- .No significant safety-related maintenance occurred for Unit 1.

- o- Completed = minor leak repair on Unit 2 CVCS letdown line.

4~ aations of Steam Generator Safety Valves or' Pressurizer Power Operated Relief Valves None.-

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l OPERATING DATA REPORT DOCKET NO 50-275 DATE 12/01/90 COMPLETED BY T. C. Joyce TELEPHONE (805)545-4139 OPERATING STATUS

1. Unit Name: Diablo Canyon Unit 1

2. Reporting PerTod: November 1990

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): 1124

7. Maximum Dependable Capacity (Net MWe): 1073.4

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 (Het MWe): N/A

10. Reasons for Restrictions, If Any: N/A This Month Year to Date Curaulative

11. Hours in Reporting Period 720.0 8016.0 48814.3

12. Number Of' Hours Reactor Was Critical 720.0 7904.0 40516.8

13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

14. Hours Generator On-Line 720.0 7840.7 39773.4

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 2364987 25396634 123469962

17. Gross Electrical Energy Generated 789000 8563900 41587332

18. Het Electrical Energy Generated 751419 8147396 39413959

19. Unit Service Factor 100.0 97.8 81.5

20. Unit Availability Factor 100.0 97.8 81.5

21. Unit Capacity Factor (Using MDC Net) 9/.2 94.7 '/ 5.2

22. Unit Capacity Factor (Using DER Net) 96.1 93.6 74.3

23. Unit forced Outage Rate 0.0 2.2 3.7

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

Refueling, February 1991, 60 days

25. If Shut Down At End Of Report Period, Estimated Date of Startup: N/A

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r OPERATING DATA REPORT-DOCKET N0. 50-323 DATE 12/01/90- 1 COMPLETED BY T. C. Joyce  ;

TELEPHONE (805)S45-4139 l 4 , OPERATING STATUS

1. Unit Name: Dia01o Canyon Unit 2 '

L2. Reporting Period: 7 ovember 1990 l

-3. ' Licensed Thermal Power (MWt): 3411

4. . Nameplate Rating (Gross MWe): 1164 -

5. ' Design Electrical Rating- (Net MWe): 1119 ,

E6. : Maximum Dependable Capacity Gross MWe): 1137  :

7. Maximum Dependable ~ Capacity NetMWe): 1087 l 8.:-'If changes occur.inicapacity ratings (Items Number 3 through 7) since last report, give reasons:- . .i N/A s ,

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' 9 .' Power Level To Which Restricted, If Any (Net MWe):- N/A

'10. Reasons For Restrictions, If Any: N/A This Month Year to Date Cumulative Lil. Hours'in Reporting Period .. . .

720.0 8016.0 41373.0 12.: Number OfvHours' Reactor Was Critical 720.0- 6688.9 33932.0

'13. -Reactor Reserve Shutdown Hours' O.0 0.0 0.0 t

14; JHours Generator On-Line 720.0 6541.1 33189.0- ,

k -15. Unit Reserve' Shutdown Hours 00 0.0- 0.0 l 116. , Gross Thermal Energy. Generated . 2242075- 21322446 107242399

'17. -Gross! Electrical.EnergyLGenerated 737200 -7099300 35724399

18) : Net Electrical: Energy Generated 702126 6758681= ~ 33869309.

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19. . Unit: Service Factor 100.0 81.6 80.2

% -20. ' Unit Availability factor 100.0 81.6- 80.2  ;

21. -Unit, Capacity Factor using MDC Net 89.7- 77.6 75.5 22 3l Unit Capacity Factor- Using DER Net 87.2 75.4 73.2' 23.3 Unit Forced Outage-Rate . .

-0.0 0.3 6.0 j

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

None, d

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25. If Shut Down At End=0f Report-Period, Estimated Date of Startup:' N/A h

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AVERAGE DAILY UNIT POWER LEVEL l

DOCKET NO. 50-275

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UNIT 1 DATE 12/01/90 COMPLETED BY T. C. J0YCE TELEPHONE (805)S45-4139 MONTH NOVEMBER 1990 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1 1056 16 1064 2 1056 17 1060 3 999 18 1060 4 809 19 1056 5 1064 20 1060 6 1069 21 1060 7 1064 22 1060 8 1068 23 1056 9 1065 24 1015 10 1065 25 878 11 1060 26 1068 12 1065 27 1065 13 1060 28 1060 14- 1060 29 1060 15 1064 30 1064 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.

The average monthly electrical power level for NOV. 1990 = 1043 MWe-Net I

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-323 UNIT 2 DATE '12/01/90 COMPLETED BY T. C. J0YCE TELEPHONE (805)S45-4139, MONTH: NOVEMBER 1990 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL 1 478 16 1054 2 568 17 491 3 600 le 550 4 838 19 1009 5 1079 20 1083 6 1088 21 1087 7 1088 22 1084 8 1088 23 1084 9 1083 24 1087 10 1067 25 1083 11 899 26 1084 12 1088 27 1084 13 1088 28 1088 14 1084 29 1084 15 1084 30 1084 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.

The average monthly electrical power level for NOV.1990 = 975 MWe-Net

UNIT, SHUTDOWNS AND POWER REDUCTIONS Page :1.of 1 DOCKET NO.- 50-275-UNIT.NAME- Diablo Canyon-Unit 1: .

DATE- 12/01/90- ,

COMPLETED BY P.G. DAHAN TELEPHONE. (805) 545-4054:

REPORT-MONTH NOVEMBER-1990 L Method of . Licensee; System Component: LCause & Corrective-1- Duration 2 3 Event. 4- .-5 Action to ,

No.:Date Type (Hours) Reason ~ Shutdown Report # ' Code- Code ' Prevent Recurrence-

1. 901103 SL 0 -B 5 N/A- SD. COND Unit I ramp down to 50% power for '

i condenser cleaning.

2. 901124 S' 0- .B- 5 N/A lSD COND~ Unit I ramp down to 50% power for ..

condenser cleaning.-

1 2 3 4 Type: . Reason: Method:- Exhibit G - Instructions ,

l F-Forced .A-Equipment Failure (Explain). 1-Manual .. for Preparation of Data S-Scheduled B-Maintenance orLTest 2-Manual Scram Entry Sheets for Licensee  ;

C-Refueling . .. .

3-Automatic. Scram Event Report (LER). File l D-Regulatory Restriction 4-Continuation from (NUREG-1022) l 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 i i i

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UNIT SHUTDOWNS AND POWER REDUCTIONS 50-323 Page 1 of 1 DOCKET NO.

UNIT NAME Diablo Canyon Unit 2 DATE 12/01/90 COMPLETED BY P.G. DAHAN j TELEPHONE (805) 545 4054 l REPORT MONTH NOVEMBER 1990 l l

Method of Licensee System Component Cause & Corrective 3 Event 4 5 Action to ,

1 Duration 2 Prevent Recurrence i Type (Hours) Reason Shutdown Report i Code Code No. Date SG COND Unit 2 ramped down to 50% power 901110 S 0 B 5 N/A for condenser cleaning.

1 SI p Unit 2 ramped down to 50% pcwer 901117 S 0 8 5 N/A to scrape and clean the circula--

2 ulating water pump discharge tunnel.

3 4 1 2 Method: Exhibit G - Instructions Type: Reason:

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

E-Operator Training & License Examination previous month 5-Power reduction 5 F-Administrative 6,7,8-N/A Exhibit I - Same Source G-Operational Error (Explain)

H-Other (Explain) 9-Other

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DATE: 12/01/90 REFUELING INFORMATION REQUEST

1. Name of facility: Diablo Canyon Unit 1

2. - Scheduled date for next refueling shutdown: February 1991 (estimated)

3. Scheduled date for restart following refueling: April 1991 (estimated) 4 Will refueling or resumption of operation thereafter require a technical specification change or other license amendment? If answer is yes, what, in general, will there be? If answer is no, has the reload fuel design and core configuration been reviewed by your Plant Safety Review Committee to determine whether any unreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)? If no such review has taken place, when is it scheduled?

No. The PSRC is scheduled to review the cycle 5 core reloid in February 1991 (estimated).

5. Scheduled date(s) for submitting proposed licensing action and supporting information:

N/A

6. Important licensing considerations associated with refueling, e.g.,

new or different fuel design or supplier, unreviewed design or performance analysis methods, significant-changes in fuel design, new operating procedures:

1. LAR requesting implementation of power-dependant Reactor Coolant 1 lystem flow rate limits wili be submitted in December 1990.

2. LAR requesting revision of surveillance requirements for Flow Balancing of the ECCS subsystems associated with the centrifugical and safety injection pumps will be submitted in December 1990.

7. The number of fuel assemblies (a) in the core and (b) in the spent l

fuel storage pool:

(a) 193 (b) 200

8. The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or l

is planned, in number of fuel assemblies:

1 Present 1324 Increase size by 0

9. The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity:

Date: 2012 (Loss of full core off-load capability)

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DATE:12/01/9v REFUEllHG INFORMATION REQUEST

1. Name of facility: Diablo Canyon Unit 2

2. Scheduled date for next refueling shutdown: September 1991(estimatedl

3. Scheduled date for restart following refueling: December 1991 (estimated)

4. Will refueling or resumption of operation thereafter require a technical specification change or other license amendment? If answer is yes, what, in general, will there be? If answer is no, has the reload fuel design and core configuration been reviewed by your Plant Safety Review Committee to determine whether any unreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)? If no such review has taken place, when is it scheduled?

No. The PSRC is scheduled to review the cycle 5 core reload in September 1991 (estimated).

5. Scheduled date(s) for submitting proposed licensing action and supporting information:

N/A

6. Important licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design nr performance analysis methods, significant changes in fuel design, new operating procedures:

1. LAR requesting implementation of power-dependant Reactor Coolant System flow rate limits will be submitted in December 1990.

2. LAR requesting revision of surveilTance requirements for Flow Balancing of the ECCS subsystems associated with the centrifugical and safety injection pumps will be submitted in December 1990.

7. The number of fuel assemblies (a} in the core and (b) in the spent fuel storage pool:

(a) 193 (b) 224

8. The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies:

Present 1324 Increase size by 0

9. The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity:

Date: 2012 (Loss of full core off-load capability) l

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