ML20115C702

Monthly Operating Rept for Feb 1985

ML20115C702
Person / Time
Site:	Diablo Canyon
Issue date:	02/28/1985
From:	Kanick B, Thornberry R PACIFIC GAS & ELECTRIC CO.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8504180510
Download: ML20115C702 (6)

Text

'

( ~.. --

.c m ,

OPERATING DATA EPORT-DOCKET NO.~ 50-275

-DATE 03/06/85-COMPLETED BY Bob Kanick TELEPHONE -(805)595-7351 0PERATING STATUS'

1;: Unit-Name: Diablo Canyon Unit;1~

.2. -Reporting Period: February 1985

3; Licensed Thermal Power _(MWt): 3338 L4. Nameplate Rating-(Gross MWe): 1170-

5. < Design Electrical Rating (Net MWe): 1084 6._ Maximum _ Dependable Capacity (Gross MWe): 1134

7. Maximum Dependable Capacity (Net MWe): 1084 18.; If, Changes.0ccur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give-Reasons:

L9. : Power Level To_ Which' Restricted, If Any (Net MWe):

N.A.

10 1: Reasons For Restrictions- If Any: None -

This Month Yr-to-Date Cumulative

11. Hours 'In Reporting -Period .

672.0 1416.0. 2638.0*- '

12. Number Of Hours Reactor Was Critical 401.8- 481.5 1448.8*- .

13. . Reactor Reserve Shutdown Hours 0.0 -0.0 0.0 14, } Hours Generator On-Line 269.8 321.8 1135.8*  ;

il5.1 Unit' Reserve Shutdown Hours 0.0 0.0 0.0

" 116. Gross Thermal: Energy' Generated (MWH) 497207 581958 1530255*

117. . Gross Electrical Energy Generated (MWH) -150000 174800 -437400*-

-18.. Net Electrical Energy Generated (MWH)

- 124925 137860 341865*

19. . Unit Service Factor N/A**

20. . Unit Availability Factor N/A**

21. _ . Unit ' Capacity. Factor ~(Using MDC . Net) 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): *

'100 Percent Outage - Maintenance and Startup Testing - March 29, 1985 - 1 month (25. ~ If Shut Down At End Of Report Period, Est. Date of Startup: N/A 26.. Units'In Test. Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY April 1984 April-1984-t . INITIAL ELECTRICITY November 1984 Nov. 1984 i COMERCIAL OPERATION March 1985

~* Cumulative totals started on the November 11, 1984 (Hour and:date of

initial electric power generation).

L ** These sections :not applicable until comencement of commercial operation.

I '

DC0044L'4 8 R

.504180510

- - oo850228 m 5 pag; 4

j g1

, i. ., .,.~.a._,.,,,,.._._._......-..._..~..___...-..-.,_~..._._.._..__._..

. :c AVERAGE DAILY UNIT. POWER LEVEL

~l DOCKET'NO. L50-275 UNIT Diablo Canyon Unit 1 DATE 03/06/85 COMPLETED BY Bob Kanick TELEPHONE- (805)595-7351

-MONTH- February 1985'

. DAY' AVERAGE DAILY POWER LE'EL- DAY AVERAGE DAILY POWER LEVEL

-(lWE-NET) (fWE-NET)

.1 -39 17 +57

'2 -37 18 ' 19 3 -38 19 -20 4 +129- 20 -17' 5- -46 21- -18 6 +302 22 -18 7 +464 23 -20 8 +81 24 -34 9 +56~ 25- -41 10' +643 26 +79 11 +796 27 .+680 12- +792 28 +804 13- +1 14 -29 15 -+291 16 +407 INSTRUCTIONS

0n 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.

DC0044 5

UNIT 5HUTDOWNS- AND POWER PEDUCTIONs PAGE 1 0F 2 DOCKET N0. 50-275 UNIT NAME Diablo Cany n Unit 1 ..

DATE- 03/06/85 -

COMPLETED BY. D.P. SISK REPORT MONTH FEBRUARY, 1985 TELEPHONE (805)S95-7351  :

Licensee System Compon nt Cause & Corrective-Duration 2 Methodof Event Action to No-. Date Type l (Hours) Reason Shutdown Report # Code Code Prevent Recurrence 1 1-5 S 74.4 8 4 N/A TB GEN Two week maintenance outage extended to' clean up main lube.

011 system.

2 2 S 31.8 8 1 N/A TB GEN Main Generator Torsional Vibration Test.

3 2-8 F 30.8 B 1 N/A SB PSF Shutdown to repair steam leak on Moisture Separator Reheater (MSR) 1-1A.

4 2-13 F 41.1 H 3 85-009 SB PIT Radio frequency interference from a portable transmitter caused a spurious steam line delta pressure safety injection.

To prevent recurrence, all areas known to contain Engineered Safety Features actuation instruments that were not already posted, have been posted with notices forbidding radio transmissions in the area.

Operational procedure OP K-9E, Handie-Talkie Operation, has been revised to include the additional posted areas.

1 2 3 4 F: Forced. Rearon: . 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 DC0044 6

~

UNIT SHUTDOWS AIO POWER REDUCTIONS- . ..~

PAGE 2 0F 2 DOCKET NO.. 50-275 -

. . UNIT.NAME Diablo Canynn Unit I- ,.

DATE' 03/06/85 -

COMPLETED BY.- D.P. SISK .-

TELEPHONE- (805)595-7351

. REPORT MONTH. FEBRUARY, 1985-Licensee. Systen Component cause.8 Corrective Duration Action to i

y 2 Methodof Event.

4 5 No. Date Type (Hours) Reason Shutdown Report-#. Code Code Prevent Recurrence-5 2-17 F 224.1 A- 2 85-011L SJ P Reactor was manually tripped in- ,

response to the automatic shut-

, down of main feedwater pumps (FWP) 1-1 and 1-2. The FWP.

f shutdowns were in response-to thrust bearing wear detection system signals indicating excessive wear. Due to.a lack of transient thrust data, the-l wear indicator setpoints were too conservative. .The manu-facturer (Westinghouse) was

contacted for recommendations

to prevent recurrence. New I setpoints recommended by ,

j Westinghouse have been incor-L porated in the thrust bearing 4

wear . detection system. . '

1

1 2 3 4 l 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) i 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 DC0044 7

g, '.-

MONTHLY NARRATIVE REPORT OF OPERATION AND MAJOR. MAINTENANCE EXPERIENCE This report describes the operating and major maintenance experience for the month of February, 1985. This narrative report was prepared by the plant staff and is submitted in accordance with Section 6.9.1.10 of the Plant Technical Specifications.

On February 4, 1985 and again on February 5, 1985, Unit 1 experienced an ESF actuation - automatic transfer of control room ventilation system from Mode 1 (normal operation) to Mode 4 (pressurization mode).

On February 8, 1985, Unit I was shut down to repair.a steam leak on Moisture Separator Reheater (MSR) 1-1A.

On February 13,1985, Unit 1 experienced a safety injection.

On February 17, 1985, Unit I was manually tripped.

Main lube oil system was flushed and returned to operability. A steam leak on Moisture Separator Reheater (MSR) 1-1A was repaired. The seals were replaced in the Main Generator hydrogen coolers. Repairs were made to motor terminations-in Containment Fan Cooler Units 1-3 and 1-4. The thrust bearing trip setpoints on

-the Main Feedwater Pump turbines were adjusted to prevent future inadvertant trips.

No challenges to the P0RVs or Steam Generator Safety Valves have been made.

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

l i

DC0044 3

, \

9 PACIFIC OAS AND E LE C T RIC C O M PANY pgg ,, DIABLO CANYON POWER PLANT i PO. Box 56 Avila Beach, Califomia 93424 - (805) 595-7351 R.C. THORNBERRY PLANT MANAGER March 6, 1985

-Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, DC 20555 RE: Docket No. 50-275 License No. DPR-80 Monthly Operating Report for February,1985 Gentlemen:

Enclosed are the completed monthly operating report forms for Diablo Canyon Unit 1 for February,1985. This report is submitted in accordance with Section 6.9.1.10'of our Technical Specifications.

Sincerely, DS $ f R. C. THORNBERRY RCT:jhr Enclosures cc _ Mr. John B. Martin, Regional Administrator

~

Region V - USNRC DC0044 1 I

'll