ML20073F557

Monthly Operating Repts for Feb 1983

ML20073F557
Person / Time
Site:	Sequoyah
Issue date:	03/15/1983
From:	Eddings M TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20073F487	List: ML20073F483 ML20073F557
References
NUDOCS 8304150506
Download: ML20073F557 (17)

Text

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1 TENNESSEE VALLEY AUTHORITY DIVISION OF NUCLEAR POWER SEQUOYAH NUCLEAR PLANT MONTHLY OPERATING REPORT FEBRUARY 1, 1983 - FEBRUARY 28, 1983 I

UNIT 1 I DOCKET NUMBER 50-327

LICENSE NUMBER DPR-77 -

UNIT 2 DOCKET NUMBER 50-328 LICENSE NUMBER DPR-79 Submitted By: ~

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Power Planti Superintendent c

8304150506 830315 PDR ADOCK 05000327 R PDR

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TABLE OF CONTENTS 5

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.t j Operations Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 i Significant Operational Events . ... .. . .. . .. ... .. . . . . . 1-3 ,

I l PORV's and Safety Valves Summary . .. . ... .. . . . . . .. . . . . . 3 ,

Licensee Events and Special Reports . . .. . . . . ... .... . . . . 3-4  ;

Offsite Dose Calculation Manual Changes ... .. . .. . . .. ... . . 5 l Operating Data ,

l Unit 1 . . .. .. .. . .. .. ... . . . . . . . . .. ... . . 6-8 t

Unit 2 .. . .... .. . ... .... . . . . .. ... .. . . . 9-11

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1 Plant Maintenance Summary .. . . .. . . . . . . . . . . ... ... . . 12-15 l 4 ,

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Oparctions Summary February, 1983 The following summary describes the significant operational activities for the month of February. In support of this summary, a chronological log of significant events is included in this report.

Unit 1 Unit I was critical for 672.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />, produced 761,560 MWH (gross),

resulting in an average hourly gross load of 1,133,274 kW during the month.

There are 255.60 full power days estimated remaining until the end of cycle 2 fuel. With a capacity factor of 85 percent, the target EOC exposure would be reached December 27, 1983. The capacity factor for the month was 97.4 percent.

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

Unit 2 Unit 2 was critical for 672.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />, produced 779,270 MWH (gross),

resulting in an average hourly gross load of 1,159,628 kW during the month.

There are 127.61 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 July 29, 1983. The capacity factor fer the month was 99.7 percent.

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

Significant Operational Events Unit 1 Date Time Event 02/01/83 0001 Reactor in mode 1 at 100% power pro-ducing 1170 MWe.

2100 Began power reduction for maintenance on #3B heater drain tank (HDT) pump.

02/02/83 0005 Reactor at 57% power. Repairs con-tinued on #3B HDT pump and the control oil orifices on 1A MFPT.

l 0422 Began power ascension.

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l Significant Oparational Events Unit 1 (Continued)

Date Time Event 02/02/83 0545 Reactor at 75% power.

0547 1A MFPT blowing oil, reducing power to 55% to remove the turbine from service.

0555 1A MFPT removed from service.

1158 Began power ascension.

1430 Reactor at 75% power and holding for maintenance to #3B HDT pump.

1555 #3B HDT pump returned to service.

1700 Began power ascension.

2350 Reactor at 100% power, producing 1170 MWe.

02/26/83 0040 Began reducing power to bring the unit off-line to repair a ruptured MSR low pressure drain line to #2 feedwater heater and repair the limit switches on the ice con-denser doors.

0632 Reactor at 30% power and holding.

1140 Began power ascension.

02/27/83 1405 Reactor at 100% power.

02/28/83 2359 Reactor in mode 1 at 100% power, producing 1170 MWe.

Unit 2 02/01/83 0001 Reactor in mode 1 at 98% power, producing 1170 MWe. No. 3 governor valve fully closed.

02/09/83 0826 Began reducing load for SI-90.102.

1010 Reactor at 93% power and holding.

1200 Began power ascension.

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Significant Operational Events Unit 2 (Continued)

Date Time Event 02/09/83 1300 Reactor at 98% power, producing 1174 MWe.

02/28/83 2359 Reactor in mode 1 at 98% power, producing 1175 MWe. No. 3 governor valve fully closed.

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 Eebruary 1983, to the Assistant Director of Nuclear Power (Operations) for reporting to the Nuclear Regulatory Commission.

Unit 1 LER SUBJECT SQRO-50-327/83002 While performing SI-196, the UHI level switches LS-87-21 and -22 were found out of tolerance.

SQRO-50-327/83003 Train A of the ERCW effluent line rad monitor RM-90-133/140 was declared inoperable due to high background noise.

SQR0-50-327/83005 The steam driven auxiliary feedwater pump failed to reach rated speed.

SQRO-50-327/83007 Auxiliary feedwater level control valve 1-LCV-3-164 failed and was declared inoperable when pressure switch 1-PS-3-164 failed with the contacts in the closed position.

SQRO-50-327/83009 The 480V shutdown board voltage was reduced to 410V during the performance of Special Test Instruction 82-06 under degraded voltage cautions. This caused the rod position indication system to be inoperable.

Licensee Events and Special Reports j (Continued)

Unit 1 LER SUBJECT 1

i SQR0-50-327/83010 Diesel generator IA-A tripped during the performace of SI-7 on a high water jacket temperature when ERCW valve 1-FCV-67-66 failed to open.

SQR0-50-327/83011 Pressure switch 1-PS-3-121A was found in the alarm state because the contacts would not reset on the dual snap model 604 pressure switches.

SQRO-50-327/83012 The feedwater channel was declared inoperable when the sense lines to channel 1-FT-3-35A were found crossed.

, SQR0-50-327/83014 The hydrogen recombiner kilowatt meter was

reading off scale high due to aging of the j- active filter (Halmor model LZF1-271105).

SQRO-50-327/83019 Rod position indicator for rod D-14 of shut-down bank A was declared inoperable due to an open circuit in the primary cable.

Unit 2 SQRO-50-328/83004 The boron concentration in the refueling water storage tank was below the 2000 ppm limit i

during the performance of SI-51.

SQRO-50-328/83006 The main feedwater flow channel 2-FT-3-90A failed high and was declared inoperable due to a frozen sense line.

SQRO-50-328/83008 Pressurizer pressure channel 2-PS-68-334 was found out of tolerance during SI-90.32.

SQRO-50-328/83013 During the performance of SI-196, four level switches (UHI) were found out of tolerance.

SQRO-50-328/83014 The containment sump level channel 2-LT-63-176 2

was declared inoperable due to air bubbles in the oil filled reference sense line from the bellows.

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Special Reports There were no special reports transmitted during the month of February.

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'Offsite Dose Calculation Mrnual Chxngts There were no changes.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-327 UNIT one DATE March 1, 1983 COMPLETED BY  !!. Eddings TELEPHONE (615) 751-0343 MONTli FEBRUARY 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 1112 1124 37 2 761 ig 1164 3 1122 1125 39 4 1119 20 1128 5 1165 1126 21 6 1126 1126 22 7 1126 1122 23 8 1123 24 1125 9- 1044 25 1126 10 1125 26 662 11 1112 27 1124 12 1124 1119 28 .

13 1122 29 NA 14 1124 30 NA 15 1126 31 NA 16 1127 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.

(9/77)

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-327 UNIT NAME sequoyah one DATE March _1. , 1983 COMPLETED BY "'""P REPORT MONTil FEBRUARY TELEPIIONE (015) 251-0343 W

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_ gg "e c yt Licensee y Cause & Corrective No. Date & C8 g 'g O 2 Event gQ

[$ Action to g 2C

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g ~y* Report ! g'g g, '8 Prevent Recurrence x e .= c >, c ao c rmg m g c ,

10 83/02/01 F B 5 Maintenance on 3B heater drain tank pump and A-main feedpump turbine.

11 83/02/26 F B 5 Maintenance on #2 main steam reheater drain line and ice condenser door limit switch.

I 2 3 4 F: Forced Reason: Method:

S: Scheduled Exhibit G-Instructions 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 AVERAGE DAILY UNIT POWER LEVEL '

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DOCKET NO. 50-328 UNIT

• DATE March 9, 1983  ;

COMPLETED BY David Dupree TELEPHONE (615) 870-5432 MONTI! FEBRUARY, 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE EAILY POWER LEVEL (MWe-Net) (MWe-Net) 1106 1

g7 1124 2 1117 18 1124 3 1119 19 1124 4 1118 20 1125 5 1117 21 1124 6 1118 22 1110 7 1120 23 1115 8 1118 24 1115 9 1080 25 1120 10 1122 26 1122 11 1120 27 1121 -

12 1124 28 1122 13 1124 29 NA 14 1129 30 NA 15 1120 31 NA 16 1125 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.

(9/77)

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-328 UNIT NAME Sequoyah Two DATE March 9, 1983 COMPLETED BY David Dupree REPORT MONTIl FEBRUARY TELEPHONE (615) 870-6543 6

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[ gl  % c yy Licensee y Cause & Corrective No. Date 8, O$ Event y

@ ~j t2 [% @Q Action to Ej g y* Report # M? 2.] Prevent Recurrence 5" NN5 N" $"

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No Outages or Reductions, i

1 2 3 4 F: Forced Reason: Method:

S: Scheduled A-Equipment Failure (Explain) Exhibit G-Instructions 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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CfEPATING DATA PIPORT IOCKET NO. 50-327 DATE MRCH 91983

} COMPLETED BY M.G. EDDIES TELEPHONE (6151870-6543 OPEPATING STATUS

1. UNIT NAME: EE0VOYAH NJCLEAR FtANT, LHIT 1 NOTES:

2. FEFORT PERIOD: FEERt%RY 1933

3. LICENSED TEPML FtHER(MWT): 3411.0

4. N(MEftATE PATING (C#)SS MWE): 1220.6

5. IESIGN ELECTRICAL PAflHG (NET MWE): 1148.0

6. MAXIMUM DEFENDAhl C/MCITY (CFOSS SE): 1163.0

7. MXIMUM LEPENDABLE CfPACITY (NET MWE): 1128.0

8. IF CMNGES OCCUR IN CAPACITY RATINGS (!TEMS NUMBERS 3 THPOUGH 7)SINCE LAST FIPORT. GIVE REASONS:

9. POWER LEVEL TO WHICH FiSTRICTED.!F ANYDET MWE):

10. PIASONS FOR RESTRICT!0NSilF ANY:

THIS MCHTH YR.-10-DATE CUMLLATIVE

!!. HOURS IN FIPCRTING PERIOD 672.06 1416.00 145%.00

12. ittEER OF HOURS REACTOR WAS CRI11 CAL 672.00 939.95 8525.65

!? PEACTOR RESER E SHIJTDOHN H0lkS 0.00 0.00 0.00

. . HOURS CINEPATOR OPH.INE 672.00 913.30 825L80

15. UNIT ESERVE SHUTDOWN H"0RS 0.00 0.00 0.00

16. GROSS THERML EKERGf GENEPATED (MWH) 2227808.65 2816893.82 260W 635.82

17. GROSS ELLCTRICAL ENERGY CEN. (MWH) 761560.00 951610.00 8709146.00

18. ET ELECTRICAL ENERGY GEEFATED O'WH) 736304.00 915411.00 8349415.00

19. UNIT SETWICE FACTOR 100.00 64.50 56.42

20. UNIT AVAILABILITY FACTOR 100.00 64.50 56.42

' 21. lNii CAP / CITY FACTOR (USING MDC NET) 97.15 57.19 So.i2 .

22. LNIT CAPTCITY FACTOR (USING IER ET) 95.46 56.19 49.84

23. UNIT FORCED OUTAGE PATE 0.00 4.03 1A.43

24. SHUTDOWNS SCEDULED DVER NEXT 6 MONTHS (TYPE. DATE. AND DUFATICN E EACH):

25. IF SHUTDOWN AT END OF REPORT PERIOD, EST!MTED DATE E STARTUP:

N01E THAT THE THE YR.-TO-DATE AND Clt9JLAIIVE W1UES MVE LEEN LFtoRD.

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C'ERATING DATA REPORT DOCKET NO. 50-328 DATE MARCH 9, 1933 CC'MPLETED BY D.C.DUFEEE TELEFHCtE (615)S704543 OPEFATif6 STATiti

1. UNIT NAr'E: SEQUOYAH TELE /8 PLIST, LNIT 2 h0TES:

2. FiPC97 FER100: FEBRUtaY 1933

3. LICEPEED THEFht POWER (NT): 3411.0

4. NAT? TATE RATING (0ROSS thE): 1220.6

5. DES 10fl ELECTRICIL FATING (tET FWE): 1143.0

6. MAXIMUM DEPEtE6 ELE C/Pf4ITY (GROSS PWE): 1163.0

7. PA11Mlti DEFENDfdtE CAPACITY (tET NE): 112?.0

9. IF CPlWOES OCCUR IN CAPACITY PATINGS(liEM3 NjelERS 3 TH:.000H 7)SINCE LAST FiPORT, GIVE FEASONS: --

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9. PCkER LEVEL TO WHICH PESTR!CIED,!F ANY(NET NE):__., _

10. PIA 50N3 FOR RE5!RICTICNS,1F (6Y: _____

THIS MONTH YR.-TO-DATE Ct9t1ATIVE

11. H0lE5 IN REK9 TING PERIOD 672.00 1416.00 6553.(9

12. NUME9 0F H0lfs RE/CIC9 WAS CRITICAL 672. C*> 1403.22 5291.92

13. fitCTOR RESERVE EHUIDOWN Hole 0.(9 0.00 0.00

14. HOURS COEFAT09 UN-LINE 672.0i 1365'.40 5175.15 1 15. UNIT F15ERVE 5HUIDCSN M6 0.00 0.00 0.00 i 16. GROSS THEWL ENEFGY GEtEFATED (Mt.H) 2240492.64 4444150.03 165?3740.89

17. OK6S ELECTRIC /L ENEEGY LEN. (MWH) 779270.00 1533180.00 5615030.00

19. FET ELECTRICil EFERGY OENERATED tr,ui! 753690.00 1478847.00 5405137.60

19. LHIT StTWICE FACTOR 100.00 96.64 70.97

20. LNIT AVAILABILITY Ff4 TOR 100.00 C6.64 78.97

21. UNIT UFACITY FACTOR (U51NG MDC NET) 99.43 92.59 73.12

' .LNii C/PACITY F/4TCRfUSING ffR NET) 97.70 90.?7 71.55

23. LN!T F0 FLED OUT/CE RATE 0.00 3.36 13.67 TL NS SfHEDULED CMR PSXT 6 MONTH 3 (TYFE. MTE

24. SH"L" fueling outage to start approxima. f!O EGATICN tely August 1, Cf EACH):

i - 7983. ---

25. IF 5 HUT [0uN AT END OF EEPORT FERibh. ESTIMATED DATE UF ST4<!L9:

ttJIE THAT THE THE )R.-TO-DATE AND COMULAllVE VALUES PME EEEN UPDA!ED.

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i Plant Maintentnce Summary The following significant maintenance items were completed during the month of February 1983:

Mechanical Maintenance

1. Replaced the pump and tubing on radiation monitor 1-REM-90-104,

2. Installed latch bar extensions on air lock doors.

3. Performed a biannual inspection on diesel generator 2A-A.

4. Replaced drain paper over drains in the ice condenser.

5. Used a freeze plug to repair a leak on 2-VLV-62-518.

6. Plugged (40) tubes in the component cooling heat exchanger "B".

Electrical Maintenance

1. Continued installation of Dimension 2000 phone system.

2. Inspected and rebuilt 6.9 kV shtdn. bd. breakers under the direction of a factory representative.

3. Checked oil levels on all Unit 1 RCP motors during brief 30% power reduction.

4. Made repairs to control circuit of 1-FCV-67-66 which had failed to open during a D/G start attempt.

5. Began a systematic walk down and inspection of the E-field wiring and made necessary repairs.

6. Continued repairs on paging system to fulfill INPO commitment.

7. Replaced motor on steam generator blow down pump on Unit 2 and replaced bearing on Unit 1 motor.

8. Made repairs and modifications to Unit 1 and Unit 2 Amertap equipment per manufacturers recommendations.

9. Inspected PZR heater control banks for proper operation and correct minor corrections.

Instrument Maintenance

1. Added oil and reverified the sensor bellows fill system for Unit 2 containment sump transmitters, LT-63-176 and LT-63-177. The fill systems for the containment sump transmitters were changed from water systems to silicon oil sytems on both units by Westinghouse in June of 1982. These were the first failures of the new systems.

Instrument Mtintentnce (Continued)

2. During the month, recalibrated Unit I and Unit 2 UHI level switches.

These have had a history of being out-of-calibration and the monthly calibration surveillance is the result of a LER commitment. Two of the four switches were found out of tolerance on Unit I and three of the four switches were found out of tolerance on Unit 2. A new cali-bration procedure was used and the switches returned to service. A Tech Spec change request was submitted to relax the tolerance on the setpoint. The switches will be recalibrated again next month.

3. Performed functional test on Unit I and Unit 2 reactor trip breakers in accordance with NRC special bulletin #83-01. No problems were encountered.

4. Upgraded the Unit 1 ice condenser recorder by replacing with a newer model. The old recorder was unreliable, required high maintenance, and spare parts were obsolete.

5. With Unit I at approximately 65%, RPI D-14 failed low. Investigation indicated an open circuit on the primay side of the detector. DC voltage was applied to the detector and circuit continuity was reestab-lished. The problem has not reoccurred.

6. Completed installation of a trickle fill system for Unit I hotwell level controls. Unit 2 system was installed during the ice weighing outage in May 1982.

Field Services Group

1. ECN 5510--Containment Personnel Airlock Penetrations (Units 1 and 2)

All field work has been completed for this modification except post-modification testing of the airlock door limit switches.

2. ECNs 2780/5200--Post-Accident Sampling Facility (Units 1 and 2)

The installation of conduit and junction boxes is continuing. Tubing is being installed in the annulus of Unit 1. This tubing is to obtain samples from the reactor coolant system, containment sump, and containment air. Some concrete chipping was required to make room for the containment air sampling panels. Protective coating has been applied to inaccessible areas where these panels will be located. Sleeves were i stalled for the llVAC ductwork and prefab-rication of ductwork is continuing.

3. ECN 5429--Containment Hydrogen Mitigation System (Unit 2)

All igniter junction boxes have been installed as well as all conduit in the dome. Cable pulling in the dome is continuing and is nearing completion. Completion of igniter terminations to the point where pre-op can perform their part of the post modification test is in progress and will be completed by the next reporting period.

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Field Services Group (Continued) i

4. ECN 5009--ERCW Piping Changeout (Units 1 and 2)

Prefabrication of piping is ' continuing for the Unit 2 penetration room coolers 2A2 and 2B2. The installation of the prefab piping will be put in at the next outage.

5. ECN 5422--Replacement of Dampers with Upgraded Ones

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Replacement of dampers on the heating,-ventilating, and air conditioning (llVAC) system is continuing to be worked. Prefabrication of three-dampers is continuing to be worked during this reporting period. These dampers will be installed in the spreader room of the control building i

when manpower is available.

6. ECN 5417--Diesel Generator Air Start System Dryers This modification adds air dryers between the air compressor and the air receiver tanks for each diesel generator engine air start system in order to remove water from the air being supplied to the air start motors. During this reporting period, the hangers were modified for 1

the air start system and the flex hoses were' installed. The functional-and leak tests were completed and the system was turned over to opera-tions. This completes this ECN.

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7. ECN 5451--Diesel Generator Engine Lube Oil System

This modification to the diesel generator engine lube oil systems adds j an auxiliary ac lube oil pump and a standby de motor-driven lube oil

pump in order to prevent bearing damage during multiple hot restarts.

4 Electrical connection of all de motor-driven lube oil pumps and associ-

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ated pressure switches is' completed. Remaining work to be done is the functional testing of these pumps and pressure switches.

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8. ECN 5106--Reactor Vessel Level Indication System (Units 1 and 2) j Conduit and hanger installation in the auxiliary building is nearing

completion. Conduit installation will begin in the' annulus of Unit 1 j in the near future. Cable pulling will take place in the near future. ,

i 1 9. ECN 5580--Plant Emergency Evacuation System Sirens 3

j Conduit, conduit hangers, junction boxes, and transformers have been

installed during this reporting period. All but one siren has been installed. Cable pulling is 95 percent complete and termination of i cables will begin in the next reporting period.

'10. ECN 2456--Seismically Qualify H, Lines In Auxiliary Building To j Maintain Pressure Boundary During An SEE IJ No. 338 (Units I and 2)

This ECN entails replacing existing deadload-type pipe supports. To date, 14 supports are complete (including painting) out of a total of -

approximately 60.

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. Field Services Group (Continued)

11. ECN 5198--Locate and Design A Technical Support Center The existing lighting was relocated in the main technical support center and corridors and the installation of conduit for the new lighting is in progress. During this period, HVAC ductwork was prefabricated but was not installed. Hanger work is in progress to install the fire protection sprinkler system.

12. ECN 5460--Reroute Auxiliary Feedwater Pump Seal Water Plant (Units 1 and 2)

During this reporting period, the installation of hangers and drain lines for reroute of seal leakage from the auxiliary feedwater pumps were completed for Unit 2. Hangers and drain lines are being installed for Unit 1.

13. ECN 5726--Reroute Feedwater Flow Sense Lines (Units 1 and 2)

Painting of Unit 2 hangers continued. No other work was performed during this period.

14. ECN 5119--Radiation Monitors For Containment Isolation Waste Disposal System (Unit 1)

Installation of conduit and cable pulling has begun on this ECN .

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