1 Powerfeedbackcommissioning measureWord格式.docx
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Verified:
Approved:
QingdaoHuafengWeiyeElectricPowerTechnology
Engineeringco.,Ltd.
Oct2010
1.Commissioningpurpose
ThismeasureisspeciallymadetoensuretheauxiliarypowerfeedbackofOgungasturbinecombinedcyclepowerplantgosmoothlyandsafety.
2.Commissioningbasis
2.1“Qualityinspectionandevaluationcriteriaofpowerprojectadjustingandtestrunning”(Powerindustrialdepartmentin1996edition).
2.2“StartupandAcceptanceRegulationsforpowerplantfundamentalconstruction”(PowerindustrydepartmentMarch1996)
2.3Manufacturertechnicalspecificationsanddrawings.
2.4NigeriaOgungasturbinecombinedcyclepowerplantconstructiondrawingelectricpart.
3.Powersupplyrange
AuxiliarypowerfeedbackisscheduledatNovember6th2010.Thispowersupplyrangeisdecidedaccordingtotheauxiliarypowerfeedbackneeds.
a.330kVIbus-bar,IIbus-bar
b.#0Startup/backuptransformer
c.6.6KVbackupsectionbus-bar
d.6.6KVworksectionbus-bar,ⅠsectionandⅡsection
e.commontransformerA,#1unitlowervoltageauxiliarytransformerAand#1unitlowervoltageauxiliarytransformerB.
f.400VcommonsectionPC40A,400VcommonsectionPC40B,400VworksectionPC41Aand400VworksectionPC41B,circulationwatersectionA、B,chemicalwatersectionA.
4.Organizationandworkdivision
4.1Projectorganization
Auxiliarypowerfeedbackistobecompletedthroughthecooperationofcommissioningdepartment,erectiondepartmentandoperationcompany.
4.2Projectworkdivision
Commissioningdepartmentistakingfullcharge,responsiblefortheworkofpowerfeedbackleadwork,measurementanddatacollection.Erectiondepartmentisinchargeofthewholeprocesssupervising,measurementandfaulteliminationwork.Operationcompanyinchargeof330KV,6.6KVand400Voperationandrelevantpartsmeasuringandequipmentsuperviseandmaintenance.
Beforepowersupply,commissioningdepartmentorganizeacheckgroupincludingeachconcerningcompaniestogiveafullcheckofeachpowersupplyequipments.Specialpersonnelwillbeappointedtowatchovertheequipmentsduringthepowersupplyprocess,anyproblemhappenedshouldreporttothegeneralcommanderintime.
5.Toolsandinstruments
Insulatedgloves,insulatedshoes,universalmeter,phasesequencemeter,phaseanglemeter,2500Vmegger(theabovetoolsandinstrumentsshouldallbetestedqualified,andthequalificationcertificatewithinvalidterm),talkerandwarningboard,etc.
6.Necessaryconditionsforpowersupply
6.1Alltheconcerningprimaryandsecondaryequipmentsinpowersupplyrangeareerected,finishedcommission,checkedandacceptedqualified,readyforthepowersupplyaccordingtotheregulationsandanti-failuremeasuresreleasedbyinternationalofnationalministries.(switchyardsupervisorycontrolling,protection,surveyingandmeasuringsystemcommissioningcompleted;
startupstandbytransformercontrolling,forced-aircooling,surveying,measuringandprotectingsystemcommissioningcompleted;
auxiliarypowersupplyDCSrelevantcommissioningcompleted;
6kV,lowvoltagetransformerand400Vpowersupplysystemcommissioningcompleted;
allthecurrentandvoltagemetersincorrectoperation.)
6.2Alltherelevantprimaryandsecondaryequipmentsareclearlyandcorrectlynumberedwithcautionsign.
6.3Primaryandsecondaryequipmentsinpowersupplyrangeareinnormalinsulatingoperation.CTiscircuitwithoutshortcircuitandPTiscircuitwithoutopencircuit.
6.4Alltheequipmentsinpowersupplyrangearesurveyingandmeasuringincorrectloopandputthemintooperation.
6.5Alltheequipmentsinpowersupplyrangeputintooperationwithsettingcorrectprotectionsetpoint.
6.6Alltheworksconcerningtheprimaryandsecondaryequipmentsusedinthispowersupplyarecompleted;
theconstructionpersonnelwithdrawformthesite.
6.7Allthepowersupplyareaareclearandclean,roadsclear,withsufficientillumination,necessaryfireequipmentsareequippedaccordingtotheregulations.
6.8Communicationequipmentscompleteandsufficient,ensuringfreecommunication.Clearlyworkdivisionandunifiedcommand.
7.Powersupplyprocedure
7.1strike330kVIbus-bar
7.1.1Checkallthegroundingbladesandisolationswitchesconnectedwith330kVIbusbarareinopenposition,localcontrolpowersupplyairswitchareatopenposition.
7.1.2CheckIbusbarPTlocalterminalboxvoltagecircuithasnoshortcircuitandthrowsinsecondaryvoltageairswitch.
7.1.3Check3301circuitlocalcontrolboxACandDCmainsairswitchthrowincorrectoperationandcontrollinghandleatthedistanceposition.
7.1.4Check3301circuitbreakermonitorpanelsecondarypowersupplyairswitch,installedpressedboardandcontroloptionswitchthrowincorrect.
7.1.5Check3301circuitbreakerprotectivepaneldevicepowersupplyairswitch8Karethrowincorrect.
Set“overcurrentIsectionprotection”setpointas0.2A/0Sand“chargingprotection”setpointas0.2Atemporarily.
Put“8LP4throwinchargingprotection”and“8LP6throwinovercurrentprotection”intofunctionpressedboard.
Throwin“8LP1tripping1coil”and“8LP2tripping2coil”trippingpressedboard.
7.1.6Checkbusbarandcommonmonitorpanelsecondarypowersupplyairswitch,installedpressedboardandcontroloptionswitchthrowincorrect.
7.1.7Check2phaseIdifferentialprotectionA、Bpanelpowersupplyairswitchwerealreadythrownin.
Throwin“1LP1throwinbusbardifferentialprotection”、“1LP2throwincircuitbreakerfailureandstarttripping”functionbaffle.
Quitallthetrippingoutputbaffles.
7.1.8Connectwith1phaseoperators;
quitallthetrippingoutputbafflesof1phaseIdifferentialprotectionAandBpanel.
7.1.9KeepwatchonallIbusbargroundingblade,isolatorand3301circuitbreakeronNCS,andmakesuretheyareincorrectconditionandhavenoabnormalsignals.
7.1.10Throwin33011,33012isolatingswitchmotivepowerandcontrolpowersupply.Throwin3301circuitbreakerprotectivepaneloperationboxpowersupply.
7.1.11Close33011isolatingswitchand33012isolatingswitchonNCSinorder,checkisolatingswitchesareswitchedin.
7.1.12Close3301circuitbreakeronNCS,strikeIbusbus-bar.Monitoringandrecordingthestrikecurrentofbusbar.(InAppendix)
7.1.13Monitor330kVIbusbarAphasevoltageisnormal,andarrangemeasurerstoinspectandrecordatallthelocalmeasuringpoint.(InAppendix)
7.1.14Checkandconfirmboth1phaseand2phaserelevantIdifferentialprotectionA,Bpanelshavenodifferentialprotectionactionandhavenoobviousdifferentialcurrent.
7.1.15Afterthistime’sstrikingnormal,open3301circuitbreaker.Strikeitforthesecondtimeafter10minutes,andmaintainbusbarhaspowerforanother5minutes,andstrikeitforthethirdtimeafter10minutes,thendonotopen3301circuitbreakerafterhavingthethirdtimesstrike,thestrikingtestfortheIbusbarisover,
7.1.16Recover3301circuitbreaker“overcurrentIsectionprotect”,“chargingprotect”originsetpoint,quit“8LP4throwinchargingprotect”functionpressedboard.
Throwinphase2IbusbardifferentialprotectionA、Bpanel“1LP4trip3301circuitbreaker”trippingpressedboard.
Recoverphase1IbusbardifferentialprotectionA、Bpaneltheorigintrippingcircuitpressedboard.
7.2Strike330kVIIbusbar
7.2.1Checkallthegroundingbladesandisolationswitchesconnectedwith330kVIIbusbarareinopenposition,localcontrolpowersupplyairswitchatopenposition.
7.2.2CheckIIbusbarPTlocalterminalboxvoltagecircuithasnoshortcircuitandthrowinsecondaryvoltageairswitch.
7.2.3Check3302circuitlocalcontrolboxalternating-currentandDCmainsairswitchthrowincorrectoperationandcontrollinghandleatthedistanceposition.
7.2.4Check3302circuitbreakermonitorpanelsecondarypowersupplyairswitch,installedpressedboardandcontroloptionswitchthrowincorrect.
7.2.5Check3302circuitbreakerprotectivepaneldevicepowersupplyairswitch8Karethrowincorrect.
7.2.6Checkphase2IIdifferentialprotectionA、Bpanelpowersupplyairswitchwerealreadythrownin.
Throwin“1LP1throwinbusbardifferentialprotection”and“1LP2throwincircuitbreakerfailureandstarttripping”functionbaffle.
7.2.7Connectwith1phaseoperators,quitallthetrippingoutputbafflesofphase1IbusbardifferentialprotectionAandBpanel.
7.2.8KeepwatchonallIIbusbargroundingblade,isolatorand3302circuitbreakeronNCS,andmakesuretheyareincorrectconditionandhavenoabnormalsignals.
7.2.9Throwin33021,33022isolatingswitchmotivepowerandcontrolpowersupply.Throwin3302circuitbreakerprotectivepaneloperationboxpowersupply.
7.2.10Close33021isolatingswitchand33022isolatingswitchonNCSinorder,checkisolatingswitchesareswitchedin.
7.2.11Close3302circuitbreakeronNCS,strikeIbusbus-bar.Monitoringandrecordingthestrikecurrentofbusbar.
7.2.12Monitoring330kVIIbusbarAphasevoltageisnormal,andarrangemeasurerstoinspectandrecordatallthelocalmeasuringpoint.
7.2.13