Tam sim no, cov tshuab hluav taws xob diesel tau siv dav hauv ntau qhov kev lag luam thiab yog cov khoom siv hluav taws xob zoo tshaj plaws rau kev muab lub zog thaub qab thaum muaj hluav taws xob tam sim lossis siv hluav taws xob niaj hnub los ntawm cov lag luam.Diesel generators kuj tau siv nyob rau hauv qee qhov chaw nyob deb nroog lossis chaw ua haujlwm.Yog li ntawd, ua ntej yuav ib lub tshuab hluav taws xob diesel, txhawm rau kom ntseeg tau tias lub tshuab hluav taws xob tuaj yeem muab hluav taws xob nrog kev ua haujlwm zoo tshaj plaws, nws yuav tsum muaj kev nkag siab meej txog kilowatts (kW), kilovolt amperes (kVA), thiab lub zog hluav taws xob (PF). Qhov sib txawv ntawm lawv yog qhov tseem ceeb:
Kilowatt (kW) yog siv los ntsuas qhov tseeb hluav taws xob muab los ntawm cov tshuab hluav taws xob, uas yog siv ncaj qha los ntawm cov khoom siv hluav taws xob thiab cov khoom siv hauv tsev.
Ntsuas pom lub zog hauv kilovolt amperes (kVA).Qhov no suav nrog lub zog siv hluav taws xob (kW), nrog rau lub zog hluav taws xob (kVAR) siv los ntawm cov khoom siv xws li lub cev muaj zog thiab hloov pauv.Lub zog reactive tsis siv, tab sis circulates ntawm lub hwj chim qhov chaw thiab lub load.
Lub zog tseem ceeb yog qhov piv ntawm lub zog ua haujlwm rau lub zog pom tseeb.Yog tias lub tsev siv 900kW thiab 1000kVA, lub zog hluav taws xob yog 0.90 lossis 90%.
Diesel generator nameplate tau ntsuas qhov tseem ceeb ntawm kW, kVA, thiab PF.Txhawm rau kom ntseeg tau tias koj tuaj yeem xaiv lub tshuab hluav taws xob uas tsim nyog tshaj plaws rau koj tus kheej, qhov kev pom zoo tshaj plaws yog kom muaj tus kws tshaj lij hluav taws xob txiav txim siab qhov loj ntawm cov teeb.
Qhov siab tshaj plaws kilowatt tso zis ntawm lub tshuab hluav taws xob yog txiav txim siab los ntawm lub cav diesel uas tsav nws.Piv txwv li, xav txog lub tshuab hluav taws xob uas tau tsav los ntawm 1000 horsepower diesel cav nrog kev ua haujlwm ntawm 95%:
1000 horsepower yog sib npaug rau 745.7 kilowatts, uas yog lub zog ncej muab rau lub tshuab hluav taws xob.
Kev ua tau zoo ntawm 95%, qhov tso zis ntau tshaj plaws ntawm 708.4kW
Ntawm qhov tod tes, qhov siab tshaj plaws kilovolt ampere nyob ntawm qhov ntsuas voltage thiab tam sim no ntawm lub tshuab hluav taws xob.Muaj ob txoj hauv kev kom overload lub generator teeb:
Yog hais tias lub load txuas nrog lub tshuab hluav taws xob ntau tshaj li qhov ntsuas kilowatts, nws yuav dhau lub cav.
Ntawm qhov tod tes, yog tias qhov load tshaj qhov ntsuas kVA, nws yuav dhau ntawm lub tshuab hluav taws xob winding.
Nws yog ib qho tseem ceeb kom nco ntsoov qhov no, txawm hais tias qhov load hauv kilowatts qis dua tus nqi ntsuas, lub tshuab hluav taws xob tuaj yeem tshaj tawm hauv kilovolt amperes.
Yog tias lub tsev siv 1000kW thiab 1100kVA, lub zog hluav taws xob yuav nce mus rau 91%, tab sis nws yuav tsis pub dhau lub peev xwm ntawm lub tshuab hluav taws xob.
Ntawm qhov tod tes, yog tias lub tshuab hluav taws xob ua haujlwm ntawm 1100kW thiab 1250kVA, lub zog hluav taws xob tsuas yog nce mus rau 88%, tab sis lub cav diesel yog overloaded.
Diesel generators tseem tuaj yeem ua dhau los ntawm kVA nkaus xwb.Yog tias cov cuab yeej ua haujlwm ntawm 950kW thiab 1300kVA (73% PF), txawm tias lub tshuab hluav taws xob tsis muaj zog, lub windings tseem yuav overloaded.
Hauv cov ntsiab lus, cov tshuab hluav taws xob diesel tuaj yeem tshaj lawv qhov ntsuas hluav taws xob yam tsis muaj teeb meem, tsuav yog kW thiab kVA tseem nyob hauv qab lawv cov nqi ntsuas.Nws tsis pom zoo kom ua haujlwm qis dua qhov ntsuas PF, vim tias kev ua haujlwm ntawm lub tshuab hluav taws xob qis qis.Thaum kawg, tshaj qhov ntsuas kW lossis kVA qhov ntsuas yuav ua rau cov khoom puas.
Yuav ua li cas cov thawj coj thiab lag luam fais fab cuam tshuam cuam tshuam rau Diesel Generators
Yog tias tsuas yog qhov kev tiv thaiv txuas nrog lub tshuab hluav taws xob thiab qhov hluav taws xob thiab qhov tam sim no raug ntsuas, lawv cov AC waveforms yuav phim thaum tso tawm ntawm cov ntsuas digital.Ob lub teeb liab hloov ntawm qhov zoo thiab qhov tsis zoo, tab sis lawv hla ob qho tib si 0V thiab 0A ib txhij.Hauv lwm lo lus, voltage thiab tam sim no nyob rau theem.
Nyob rau hauv cov ntaub ntawv no, lub hwj chim ntawm lub load yog 1.0 los yog 100%.Txawm li cas los xij, lub zog ntawm cov khoom siv feem ntau hauv cov tsev tsis yog 100%, uas txhais tau hais tias lawv qhov voltage thiab tam sim no yuav sib txawv:
Yog hais tias lub ncov AC voltage coj lub ncov tam sim no, lub load muaj ib tug lagging zog yam tseem ceeb.Cov loads nrog tus cwj pwm no yog hu ua inductive loads, uas muaj xws li hluav taws xob motors thiab transformers.
Ntawm qhov tod tes, yog tias qhov tam sim no coj qhov voltage, lub load muaj lub zog ua haujlwm.Ib qho kev thauj khoom nrog tus cwj pwm no yog hu ua lub peev xwm thauj khoom, uas suav nrog cov roj teeb, lub tsev txhab nyiaj capacitor, thiab qee cov khoom siv hluav taws xob.
Cov tuam tsev feem ntau muaj cov khoom siv inductive ntau dua li cov khoom siv hluav taws xob.Qhov no txhais tau hais tias lub zog tag nrho feem ntau yog lag luam, thiab cov tshuab hluav taws xob diesel tau tsim tshwj xeeb rau hom kev thauj khoom no.Txawm li cas los xij, yog tias lub tsev muaj ntau lub peev xwm thauj khoom, tus tswv yuav tsum tau ceev faj vim tias lub tshuab hluav taws xob hluav taws xob yuav tsis ruaj khov thaum lub zog ua haujlwm tau nce.Qhov no yuav ua rau muaj kev tiv thaiv tsis siv neeg, disconnecting lub cuab yeej ntawm lub tsev.
Post lub sij hawm: Feb-23-2024