ML17037B742: Difference between revisions
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{{#Wiki_filter: | {{#Wiki_filter:NIAGARAMOHAWKPOWERCORPORATION NINEMILEPOINTNUCLEARSTATIONUNIT¹1Narrative of0eratinExerienceAugust1978Theunitoperatedat80;8~ocapacityfactorwithanavailability of95.9~oforthemonth.Themonthbeganwithunitderatedto94~~CoreThermalPowerduetoscramreactivity considerations; theunitwasat94~apoweronAugust1.ControlRodwithdrawals wereusedtomaintainpower/flow positionof94~~CTPwhenat0110onAugust3areactorscramoccurredduetohighfluxbecauseofaproblemencountered whiletestingMSIV's.Thescramwasattributed toeitheroperatorerrororahung-uprelayinthetestcircuit.Manytestswereconducted butnomalfunctions couldbefound.Aplantstart-upwascommenced at1345withreactorcriticalat1650andonthelineat0655onAugust4.Continued startupandloadincreases reaching450MWeby2230.Thefollowing dayafterawaitingXebuild-up, reducedloadto375MWeforsettingfinalrodpattern.Loadwassub-sequently increased to430MWeby1710,andloadincreases atthepre-conditioning rateof3MWe/hrwereinitiated. | ||
',4 eSIt' | OnMondayAugust7,stationoutputwasapproximately 540MWewithpreconditioning rampratestillineffect.Completed anLPRMcalibration onAugust8,andreachedpreconditioned envelopeto1711MWtonthe9thofAugust;alsostartedpowerrodwithdrawals tomaintain94~oCTP(553MWe).Reducedloadto500MWeat2230on11thofAugustinordertore-placesealson¹11motordrivenfeedwater pump.Loadrecovered to540MWEat2230thefollowing dayuponcompletion ofpumpwork,andoutputof554MWeattainedat0800onthe13thofAugust.Unitoperatedatapproximately 94'oCTPbyrodwithdrawal until2200onthe19thwhenareduction to450MWeviareactorrecirculation flowoccurredinordertowithdrawshallowcontrolrods.Preconditioning from461MWewasinitiated andstationoutputof537MWewasreachedat0540onAugust21.UnitoperatedatthispowerleveluntilAugust27whenacoastdownto92~oCTPwasinitiated, tomeetnewpower/flow limitations basedonscramreactivity considerations. | ||
However,afurtherreductions toapproximately 80>~powerwasrequiredwhen¹11ReactorRecirculating Pumphadtobetakenoutofserviceat1735duetoapumpcoolerleak.Theplantwasderatedto84'oCTPfromthe27ththroughtheendofthemonth,andoutputwasatapproximately 485MWeduringthisperiod. | |||
',4 eSIt'C0SREGULATORY INFORNATION DISTRIBUTION SYSTEN<RIBS)DISTRIBUTION FORINCONINGNATERIAL~80-220'%CYANIC'l@Hkwk (wRNOTARIZED: | |||
NOEKE'kSD".0NI/i7)78 MCTYPE:IETTERCOPIESRECEIVED | |||
==SUBJECT:== | ==SUBJECT:== | ||
LTRiENCLiORWARDING SUBJECTFACILITY' NONTHLYOPERATING REPTFORTHENONTI"IOFJULY'978.~iWHW/L8'r~1DISTRIINITIAL:DISTRIBUTION OFTHISNATERIALISASFOLLOWS++<+444~+<<<+<<<++ | |||
ANNUAL'ENI-ANNUAL 5NONTHLYOPERATING RPTS.<QLSTAGE)<DISTRIBUTION CODEA008>FORACTION:INTERNAL: | |||
BRCHIEFORBN3BC+>M/6ENCLREGFILE)~M/ENCL I-LE+4Q/2ENCLHANAUER~H~M/ENCL ADFOR8YSouPROJ'~pyM/ENCLREACTORSAFETYBR++M/ENCL EEB~~W/ENCL EFFLUFNTTRFATSYS><>M/ENCL NRCPDR++M/ENCL NIPC+<H/2 ENCLDIRECTORDOR>4M/ENCL ENGINFERING BR+%M/ENCL PLANTSYSTEMSBR>4M/ENCL COREPERFORNANCE BR+~M/ENCL EXTERNAL: | |||
LPDR'SOSMEGOiNY<F~M/ENCL NATLLABANL~~uM/ENCL TERA~~@l/ENCL NSIC+%M/ENCL ACRSCATB<~~Wr15ENCLDISTRIBUTION: | |||
LTR4iENCL4iSIZE:iP+4Ph0HHHHF8H( | |||
3HI+HFHHFHPHFHFHF+N | |||
)t8f8F8'.8f40fdl+dl68HFgf-Hat CONTROLNBR:782i90036 THEEND8f%8f.%%%%%%%%%%%%%%%%%%% | |||
k%%%%%%%%%c 01 ItVÃIl&SABBgppgG@gqnyg NWP-0185NIAGARAMOHAWKPOWERCORPORATION/300 ERIEBOULEVARD WEST,SYRACUSE, N.Y.13202/TELEPHONE (315)474-1511Auguek7,1978NJLe~/L0(geeo)hfanagemeet'nfo/Im~n andPaog/IamCo~oLU~edS~e5NucLea/LReguLatocg CommLwmnOlae&ngkon, V.C.20555RE:'Dock&No.50-2208PR-63Gentlemen: | |||
Sub~edhe/L~h~XheRepoMo)Ope/c~ng$~&cbandS~oI0nExpetu.ence | |||
$o/L3'uLI/1978)o/LWeN~eh4LePokeryNucLea/LS~onU~ill.ALeoLneLudedks aNa/vIative RepoMo(OpingExpetu,ence (o/LShemort'h.Ve/Ly~I/you/L6,xc:Sme~/L,O(g.e,eos78E(10eop~e5)NRCRegin'iOlI/~e(1copy)ThomasE.Lempge5Gene/IaLSupetu'.etendeet-NueLea/LGene/cation R.R.SchneLde/L VLcePae5&eet-ELe~ePrcodu~on (s782190036 f}} | |||
Revision as of 23:24, 29 June 2018
| ML17037B742 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 08/07/1978 |
| From: | Lempges T E, Schneider R R Niagara Mohawk Power Corp |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML17037B742 (6) | |
Text
NIAGARAMOHAWKPOWERCORPORATION NINEMILEPOINTNUCLEARSTATIONUNIT¹1Narrative of0eratinExerienceAugust1978Theunitoperatedat80;8~ocapacityfactorwithanavailability of95.9~oforthemonth.Themonthbeganwithunitderatedto94~~CoreThermalPowerduetoscramreactivity considerations; theunitwasat94~apoweronAugust1.ControlRodwithdrawals wereusedtomaintainpower/flow positionof94~~CTPwhenat0110onAugust3areactorscramoccurredduetohighfluxbecauseofaproblemencountered whiletestingMSIV's.Thescramwasattributed toeitheroperatorerrororahung-uprelayinthetestcircuit.Manytestswereconducted butnomalfunctions couldbefound.Aplantstart-upwascommenced at1345withreactorcriticalat1650andonthelineat0655onAugust4.Continued startupandloadincreases reaching450MWeby2230.Thefollowing dayafterawaitingXebuild-up, reducedloadto375MWeforsettingfinalrodpattern.Loadwassub-sequently increased to430MWeby1710,andloadincreases atthepre-conditioning rateof3MWe/hrwereinitiated.
OnMondayAugust7,stationoutputwasapproximately 540MWewithpreconditioning rampratestillineffect.Completed anLPRMcalibration onAugust8,andreachedpreconditioned envelopeto1711MWtonthe9thofAugust;alsostartedpowerrodwithdrawals tomaintain94~oCTP(553MWe).Reducedloadto500MWeat2230on11thofAugustinordertore-placesealson¹11motordrivenfeedwater pump.Loadrecovered to540MWEat2230thefollowing dayuponcompletion ofpumpwork,andoutputof554MWeattainedat0800onthe13thofAugust.Unitoperatedatapproximately 94'oCTPbyrodwithdrawal until2200onthe19thwhenareduction to450MWeviareactorrecirculation flowoccurredinordertowithdrawshallowcontrolrods.Preconditioning from461MWewasinitiated andstationoutputof537MWewasreachedat0540onAugust21.UnitoperatedatthispowerleveluntilAugust27whenacoastdownto92~oCTPwasinitiated, tomeetnewpower/flow limitations basedonscramreactivity considerations.
However,afurtherreductions toapproximately 80>~powerwasrequiredwhen¹11ReactorRecirculating Pumphadtobetakenoutofserviceat1735duetoapumpcoolerleak.Theplantwasderatedto84'oCTPfromthe27ththroughtheendofthemonth,andoutputwasatapproximately 485MWeduringthisperiod.
',4 eSIt'C0SREGULATORY INFORNATION DISTRIBUTION SYSTEN<RIBS)DISTRIBUTION FORINCONINGNATERIAL~80-220'%CYANIC'l@Hkwk (wRNOTARIZED:
NOEKE'kSD".0NI/i7)78 MCTYPE:IETTERCOPIESRECEIVED
SUBJECT:
LTRiENCLiORWARDING SUBJECTFACILITY' NONTHLYOPERATING REPTFORTHENONTI"IOFJULY'978.~iWHW/L8'r~1DISTRIINITIAL:DISTRIBUTION OFTHISNATERIALISASFOLLOWS++<+444~+<<<+<<<++
ANNUAL'ENI-ANNUAL 5NONTHLYOPERATING RPTS.<QLSTAGE)<DISTRIBUTION CODEA008>FORACTION:INTERNAL:
BRCHIEFORBN3BC+>M/6ENCLREGFILE)~M/ENCL I-LE+4Q/2ENCLHANAUER~H~M/ENCL ADFOR8YSouPROJ'~pyM/ENCLREACTORSAFETYBR++M/ENCL EEB~~W/ENCL EFFLUFNTTRFATSYS><>M/ENCL NRCPDR++M/ENCL NIPC+<H/2 ENCLDIRECTORDOR>4M/ENCL ENGINFERING BR+%M/ENCL PLANTSYSTEMSBR>4M/ENCL COREPERFORNANCE BR+~M/ENCL EXTERNAL:
LPDR'SOSMEGOiNY<F~M/ENCL NATLLABANL~~uM/ENCL TERA~~@l/ENCL NSIC+%M/ENCL ACRSCATB<~~Wr15ENCLDISTRIBUTION:
LTR4iENCL4iSIZE:iP+4Ph0HHHHF8H(
3HI+HFHHFHPHFHFHF+N
)t8f8F8'.8f40fdl+dl68HFgf-Hat CONTROLNBR:782i90036 THEEND8f%8f.%%%%%%%%%%%%%%%%%%%
k%%%%%%%%%c 01 ItVÃIl&SABBgppgG@gqnyg NWP-0185NIAGARAMOHAWKPOWERCORPORATION/300 ERIEBOULEVARD WEST,SYRACUSE, N.Y.13202/TELEPHONE (315)474-1511Auguek7,1978NJLe~/L0(geeo)hfanagemeet'nfo/Im~n andPaog/IamCo~oLU~edS~e5NucLea/LReguLatocg CommLwmnOlae&ngkon, V.C.20555RE:'Dock&No.50-2208PR-63Gentlemen:
Sub~edhe/L~h~XheRepoMo)Ope/c~ng$~&cbandS~oI0nExpetu.ence
$o/L3'uLI/1978)o/LWeN~eh4LePokeryNucLea/LS~onU~ill.ALeoLneLudedks aNa/vIative RepoMo(OpingExpetu,ence (o/LShemort'h.Ve/Ly~I/you/L6,xc:Sme~/L,O(g.e,eos78E(10eop~e5)NRCRegin'iOlI/~e(1copy)ThomasE.Lempge5Gene/IaLSupetu'.etendeet-NueLea/LGene/cation R.R.SchneLde/L VLcePae5&eet-ELe~ePrcodu~on (s782190036 f