ML20071C934

Monthly Operating Repts for Dec 1982

ML20071C934
Person / Time
Site:	Sequoyah
Issue date:	01/11/1983
From:	Dupree D, Eddings M, Mason C TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20071C933	List: ML20071C932 ML20071C934
References
NUDOCS 8303080377
Download: ML20071C934 (13)

Text

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TENNESSEE VALLEY AUTHORITY DIVISION OF NUCLEAR POWER SEQUOYAH NUCLEAR PLANT MONTHLY OPERATING REPORT DECEMBER 1, 1982 - DECEMBER 31, 1982 UNIT 1 DOCKET NUMBER 50-327 LICENSE NUMBER DPR-77 UNIT 2 DOCKET NUMBER 50-328 LICENSE NUMBER DPR-79 Submitted By: M Power Plant Superintendent l

8303000377 830114 )

PDR ADOCK 05000327 i R pm

l 4-TABLE OF CONTENTS Operations Susumary . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 I Significant Operational Events . . . . . . . . . . . . . . . . . . . . . . 1-2 PORV's:and Safety Valves Summary . . . . . . . . . . . . . . . . . . . . . 2

-Licensee Events and Special Reports . . . . . . . . . . . . . . . . . . . 2-3

] Offsite Dose Calculation Manual Changes . . . . . . . . . . . . . . . . . 3 Operating Data Unit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 2

Unit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9 i Plant Maintenance Sununary . . . . . . . . . . . . . . . . . . . . . . . . 10-11

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Operr_tiens Summary December 1982 The following summary describes the significant operational activities for the month of December. In support of this summary, a chronological log of significant events is included in this report.

Unit 1

i. The refueling / modification outage continued during the month.

Unit 2 j Unit 2 was critical for 31.17 hours1.967593e-4 days <br />0.00472 hours <br />2.810847e-5 weeks <br />6.4685e-6 months <br />, produced 1,010 MWH (gross) resulting in an average hourly gross load of 265,789 kW during the month. There are 181.6 full power days estimated remaining until the end of cycle 1 fuel. With a capacity factor of 85 percent the target EOC exposure would be reached August 1, 1983. The capacity factor for the month was 0.12 percent.

There were no reactor scrams, no manual shutdowns, and no power reductions during December.

5 Significant Operational Events I

Unitj i

l Date Time Event 12/01/82 0001 Reactor in mode 5. The refueling /

, modification outage continues.

^

1 12/31/82 2359 Reactor in mode 5. Preparation to

, enter mode 4 in progress.

l f Unit 2 12/01/82 0001 Reactor in mode 5 as the generator i

maintenance continues.

12/26/82 0500 Reactor entered mode 4.

12/27/82 1500 Reactor entered mode 3.

12/30/82 1650 Reactor taken critical.

1950 Reactor entere?.v. ode 1.

- = , ,-,,.w ....-+,_.,,-.,----,--,-,...-re.e -- . - - , - - - ~ - - - - - - , , - - . + , = , - - .

i Signifient Op3rntitan] Evrnts Unit 2 Date Time  ; vent ' -

12/31/82 0205- Rolled turbine. 1 0243 Turbine tripped (unit not on line) due to the governor valves swinging.

0400 Reactor entered mode 2.

2012 The unit tied on line.

2359 Reactor in mode 1 at 30% power pro-ducing 290 MWe and holding das to secondary chemistry.

PORV's and Safety Valves Summary No PORV's or safety valves were challenged during the month.

Licensee Events and Special Reports The following Licensee Event Reports (LER's) were sent during December 1982, to the Assistant Director of. Nuclear Power (Operations) for reporting to the

! Nuclear Regulatory Commissien.

Unit 1 LER SUBJECT SQRO-50-327/82135 The UHI accumulator tank level switches were found out of tolerance during calibration.

SQRO-50-327/82139 The containment air locks failed their local '

leak rate tests (SI-159.1).

SQRO-50-327/82140 The containment isolation valve / penetration combined leakage rate and combined bypass leakage exceeded the acceptable limits.

Unit 2 SQRO-50-328/82132 RHR 2A-A pump was inoperable due to the failure of the discharge flow switch to actuate causing the mini flow valve not to open.

SQRO-50-328/82133 Steam generator #4 level transmitter LT-3-110 failed high due to a faulty transistor.

t r,-- _ m._. , . - ._. - , . - _ , , . _ , . _ . _ _ - , . . , _ , , , , . . ..._,,.,.r. _m _ , , , , , , , , , , . . ,, , . , . , , _ _ _

Licen'ca Evrete rnd Special Rac orto Unit 2

-LER SUBJECT SQRO-50-328/82134 RWST level channel LT-63-52 was found out of tolerance during calibration.

, SQRO-50-328/82136 Annulus inleakage was greater than allowable during the EGTS annulus draw down test (SI-264).

SQRO-50-328/82137. The UHI accumulator tank level switches were found out of tolerance during calibration.

SQRO-50-328/82138 The lower containment airlock failed the local leak rate test.

SQRO-50-328/82141 Both trains of the ESF auto actuation of the containment vent isolation failed due to slave relays K615 and K622 would not stay latched.

Special Reports There were no special reports sent during the month of December.

1 Offsite Dose Calculation Manual Changes There were no changes to the Sequoyah Nuclear Plant ODCM during December.

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l AVERAGE DAILY UNIT POWEE LEVEL DOCKET No. 50-327 UNIT one DATE December 31, 1982 COMPLETED By M. Eddings TELEPHONE (615) 751-0421 MONTH December DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (HWe-Net) 1 NA* 17 NA*

2 NA* gg NA*

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4 NA* 20 NA*

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11 NA* 27 NA*

12 NA* 28 NA*

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14 NA* 30 NA*

15 NA* 31 NA*

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INSTRUCTIONS l On this format, list the average daily unit power level in MWe-Net for- each day in the r.'. porting month. Compute to the nearest whole megawatt.

(9/77)

• Unit Down - Refueling Outage

J 50-327 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

UNIT NAME Seauovah One DATE January 7, 1983

' COMPLETED BY M. Eddings REPORT MONTH December TELEPHONE (615) 751-0421 "u a

"^ "888 he ause & Correcdve No* Date O $0 E4 "o .S !", "@ y ,5 g Event 3.g g.g Action to R %8 8 ,8 3 y Report # g3 gg Prevent Recurrence o

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3 82/09/11 S 744 C 1 Refueling / modification outage.

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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 (NUREG-D-Regulatory Restriction 4-Cont. of Existing 0161)

E-Operator Training & License Examination Outage F-Administrative 5-Reduction G-Operational Error (Explain) 9-Other 5 (9/77) H-Other (Explain) Exhibit I-Same Source

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DOCKET NO. 50-328 UNIT Two DATE January 6. 1983 COMPLETED BY David Dupree TELEPHONE (615) 751-0343 MONTH December, 1982 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0 17 0 2 0 18 0

. 3 0 19 0

4 0 20 0 5 0 21 0 6 0 22 -C 7 0 23 0 8 0 24 0 9 o 25 0 10 0 26 0 11 0 27 0 12 0 28 0 13 0 29 0 14 0 30 0 15 0 31 39 16 0 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. l i

(9/77) i i  !

UNIT SHUTDOWNS AND POWR REDUCTIONS DOCKET NOo 50-328 -

UNIT NAME Seouovah Two DATE January 6 1983 i

• COMPLETED BY David Dupree REPORT t10 NTH December TELEPHONE (615) 751-0343

% u cn N Y ec 3 Licensee g g, Cause & Corrective

o. pate o S$ 8 .o y Event o.g g,g Action to R %8 $ ,8 g y Report # gg g.g Prevent Recurrence Y5 a

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19 82/11/13 S 48 H 1 Ice weighing outage. (Surveillance testing required by Technical Specifications)..

20 82/12/03 F 692.2 B 4 Found damage fan blades in the hydrogen cooling syste .

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4 i 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 (NUREG-D-Regulatory Restriction 4-Cont. of Existing 0161)

E-Operator Training & License Examination Outage F-Administrative 5-Reduction G-Operational Error (Explain) 9-Other 5 (9/77) H-Other (Explain) Exhibit I-Same Source i

Pl".nt Maintenanen Summary i

The following significant maintenance items were completed during the ,

month of December 1982: l Mechanical Maintenance

1. Repairs were made to the Units 1 and 2 BIT valves FCV-63-25, -26, -39, and -40 to stop leakage. i Electrical Maintenance

1. Diesel generator 2B-B repairs were completed following the transformer repairs.

, 2. The hydogen ignitors were checked with an infrared thermometer.

Instrument Maintenance None reportable this period.

j Field Services Group j

Unit 0 L-1676 Installed a permanent jumper in panel 1A terminal #18D0 0-31-12437 to panel 1A, terminal #18D1.

L-1677 Put a switch in parallel with the Rusco Card Entry System 0-244-8606 printer to provide continuity when that printer is ot o service for maintenance.

L-1681 Installed the dimension phone system and made changes to 0-244-12446 the PAX system.

, L-1708 Changed the carrier detect relay from normally open to

0-301-12475 normally closed by removing the wire from relay socket l pin 7 and reconnecting to pin 4. (Environmental Monitoring System) i L-1322 Replaced the round door knob with a lever type on door l

0-410-11982 C-37 (door to control building stairwell beside SE's office).

ECN L-5685 Added an emergency light pack in each of the four relay 0-247-12197 rooms.

l

Field Snrvices Group Unit 1 L-1371 Replaced the carbon steel high pressure turbine interstage 1-7-12072 cylinder drains with type 304 stainless steel.

L-1826 Installed special instrumentation to measure local pressures 1-31-12629 in HP and LP turbines.

ECN 5429 All remaining work including system functional testing was com-pleted this month on the hydrogen mitigation system. The system is now operational.

ECN L-5786 Tack welded the upper head injection nozzles in two locations in RBI, elevation 734.

Unit 2 L-1694 Changed the white wire terniination on cable 2V6736 from R-76 2-65-12458 TB 607 terminal 4 to R-76 TB 607 terminal.

FCR-653 Installed the vessel nozzle covers (FCR-653 supercedes FCR 2-68-11955 OPP-364).

ECN 5429 (Hydrogen Mitigation System) All igniter junction boxes have been installed as well as all conduit in the dome. Work is expected to continue after Unit 2 is online.

Units 1 and 2 L-1635 Fabricated and installed a T-bar across the water box outlet l

3-27-12393 strainer section above the screens.

L-1600 Relocated the paper tape reader and punch from the programmers 3-301-12340 console to the computer cabinet in the computer rocm, elevation 685.

ECN L-5643 Installed a 3" isolation valve upstream of check valve 3-894 3-30-12343 in auxiliary feedwater pump recirculation return to condensate storage tank A.

L-5672 Cleared'TACFs and updated drawings to show capac; tor size 3-245-12503 option (100 pfd or .01 mfd) as a result of Preop Test NCS-32E, Ph. II deficiency PT-710.

L-5704 Provided a 2" x 2" access opening in bottom of all accessible 3-61-12317 ice baskets to enable addition of ice from the bottom.

L-5777 Inverted the upper sensor bellows for each cold leg accumulator 3-63-12391 level transmitters.

-11, i

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