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April 10, 1990 Prairie Island Technical SpecificationSection 6.7.A.3

U S Nuclear Regulatory Commission,

I Attn: Document Control DeskWashington, DC 20$$$

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PRAIRIP, ISLAND NUCLF).R GCNTMTING PLANT !,

O boektt No. SCA S? Licente N(, DPR44't

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Attacitt'. is the Monthly Operstieg Peport for March,1990 for the Prairie jInland 11uclear Generating Plant.. +

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Thomas M Parker ;

Manager !Nuclear Support Services ]

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c: Director Office of Resource ManagementRegional Administrator III, NRC i

. NRR Project Manager, NRC !!' NRC Resident Inspector

MPCAAttn: J V Perman |

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M'' s UNIT PRAIRIE ISLAND WQ.i...k '- DATE APRIL.4,-1990

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.:FROH THE REFUEL 3NG DUTAGE..W

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Nb UPERTURBAT10N TEST 4T HICH. REACTOR POWER. ALL WENT WELL.'

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$@M56M.SIGNsELECTRICAL RATING (NET MWE):4C NAMEPLATE RATING (GROSS MWE): 593 | . || $ Q.

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J76 M4XIMUM DEPENDABLE CA!'ACITY a' NET' MI6)1 S03 .1., _ .. . . . T;.$ :

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Q|12. NUMBER.0F HOURS REACTOR WAS CRITICAL: '744.0 1260.2 -120379.7-

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0.0- 5571.1< .'4

'L14.THOURS GENERATOR ON-LINE 744.0 1188.3'' T118836.6' "l i150 UNIT RESERVE SHUTDOWN' HOURS 0.0 0.0 0.01

6144:. GROSS THERMAL ENERGY' GENERATED (MWH) ~1204506 .1586225 186947679iGki7e GROSS ELECTRICAL ENERGY GENERATED-(MWH) L405570 529700 ^41322260?'''<

118. NET ELECTRICALLENERGY GENERATED (MWH)- 385730 495594'' 57548928 s

''19'JUNITTSERVICE FACTOR 100.0 55.0 83.2.

, ;20.< UNIT AVAILABILITY ~ FACTOR 100.0 55.0 . 83.26( 211 UNITLCAPACITY~ FACTOR (USING MDC NET) '103.1 45.6' ' 8 0 ~.1 :.

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L.g22.1 UNIT CAPACITY, FACTOR (USING DER NET) '97.8 43.3 '76.01 '''

$23.' UNIT FORCED OUTAGE RATE 0.0 2.8 5.9: ,

f 24d FORCED OUTAGE HOURS- 0.0 33.9: '751614.4' '

Q25." SHUTDOWNS'SCHEDULEDOVERNEXT'6 MONTHS (TYPE,DATE&'DURATIONOFEACH):.

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DOCKET NO 50-002UNIT NAME t hoIE1E_ISL6 tid lio._1

DATE 6LGIL d _1220..____COMPLETED BY DALL DUGSIeD______

TELLEPHONE 61?-300-1101-6376

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F-FORCED A-EQUIPMENT FAILURE 1 MANUAL. DRAFT IEEE STDS-SCHED B-MAINTENANCE OR TEST 2-MANUAL TRIP 005-1994(P005-D5)

C-REFUELING 3-AUTO TRIPD-REGULATORY RESTRICTION 4-CONTINUEDE-OPERATOR TRAINING & 5-REDUCED LOAD C0bE0tiENI CODE

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ON THE'8TH'O 1142 THE UNIT TRIPPED DUE TO A FAULTY RELAY ASSOCIATED'

|WITH.THE GENERATOR BUS DUCT COOLING SYSTEH. DURING THE STARTUP THE REACTOR-. ENT CRITICAL 9 2208 BUT. TRIPPED G 0120 0F THE 9TH DUE TO A BLOWN FUSEF W

/ IN THE REACTOR PROTECTION SYSTEM. ON THE'iOTH & 0215 THE REACTOR'WENT1: CRITICAL AND THE GENERATOR WAS PLACED ON-LINE 9 0928.'THE FIRST TRIP

CAUSED SOME SECONDARY SIDE RELEIFS TO LIFT AND ONE FLANGE LEAK..THESE..

PROBLEMS WERE ADDRESSED.-'

ON THE 16TH THE UNIT TRIPPED & 0921 DUE TO IMPROPERLY ATTACHING TEST-"

' EQUIPMENT TO THE. ROD CONTROL SYSTEM'S ON-LINE~ MONITORING EQUIPMENT. THIS'CAUSEDiA GROUND IN THE SYSTEM AND A TRIP WHEN THE URGENT ALARM WAS RESET.,

4' :THE REACTOR'WENT CRITICAL 0 2233.AND'THE GENERATOR WAS PLACED ON-LINE 9:'~0120 0F THE 1.7TH. NO-PROBLEMS WERE ENCOUNTERED DURING THIS~ TRIP OR.STARTUP.

0Nl.THE 20TH. 9 'i M 5 THE UNIT'S POWER WAS REDUCED TO APPROXIMATELY 500 MWE4 -(REACTOR POWER:9 9S%) DUE TO'A TUBE' LEAK IN 2iA FEEDWATER HEATER.''THE UNIT.

| REMAINED AT'THISJPOWER LEVEL.UNTIL THE'31ST-@ 1900 WHEN THE' REACTOR'WAS,

iRETURNED'TO 100% POWER. THE UNITS ELECTRICAL OUTPUT IS STILL-LOW DUE'TO'

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THE FEEDWATER HEATERS OUT OF SERVICE AND THE SPRING. BLOWDOWN RESTRICTION.~21A'FEEDWATER HEATER IS SCHEDULED FOR REPAIR ON THE WEEKEND OF APRIL 7TH.'

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COMPLETED BY DALE DUGSTADTELEPHONE 612-368-1121-4376

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OEERoIING_II6IUS*i. UNIT NAME: E801BIE_ISLOND_NO._2 ______________________

2. REPORTING PERIOD:_doECU______1220___ l NOTES: |

3. LICENSED THERMAL POWER (MWT): 1650 | |4 NAMEPLATE RATING (GROSS MWE). 593 | |

5. DESIGN ELECTRICAL RATING (NET MWE): 530 | |

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE)t 534 | l

7. MAXIMUM DEPENDADLE CAPACITY (NET MWE): 500 1_ _ _ .. _ _ _ _ _ _ _ _ _ _ _ . 18. IF. CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBER 3 THROUGH 7)

SINCE LAST REPORT GIVE REASON:__NONE_____________________________________________________________________________________..______________

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE):__NONE_..___,____ ___

,10. REASONS FOR RESTRICTIONS, IF ANY:__NONE_______________________________

IHIS_MONIU YB:IO:D6IE .CUduLGIIVE

ii. HOURS IN REPORTING PERIOD 744 2160 13391812. NUMDER OF HOURS REACTOR WAS CRITICAL 695.6 1894.2 117795.9 .

,13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1516.1 !

14. HOURS GENERATOR ON-LINE 682.1 1865.8 116633.815. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0-16. GROSS THERMAL ENERGY GENERATED (MWH) 1089263 3014737 'd424298417. GROSS ELECTRICAL ENERGY GENERATED (MWH) 358840 1005980 3974890010 NET ELECTRICAL ENERGY GENERATED (MWH) 339919 951400 56509193

'19. UNIT SERVICE FACTOR 91.7 86.4 87.1 '

20. UNIT AVAILABILITY FACTOR 91.7 86.4 87.121. UNIT CAPACITY FACTOR (USING MDC NET) 91.4 80.1 84.472.-UNIT CAPACITY FACTOR (USING DER NET) 86.2 83.1 79.623. UNIT FORCED OUTAGE RATE 8.3 13.6 3.224. FORCED OUTAGE HOURS 61.9 294.2 3840.025. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE & DURATION OF EACH)

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