Ntawm tam sim no, cov roj hluav taws xob tau siv dav hauv ntau yam kev lag luam thiab cov khoom siv hluav taws xob uas nyiam muab cov hwj huam rov qab los yog siv hluav taws xob txhua hnub los ntawm cov lag luam. Cov neeg tsim hluav taws xob Diesel tseem siv tau hauv qee thaj chaw deb lossis chaw ua haujlwm. Yog li ntawd, ua ntej kev yuav khoom siv roj hluav taws xob, txhawm rau kom cov tshuab hluav taws xob muaj hluav taws xob zoo tshaj plaws ntawm Kilowatts (KVA), thiab lub zog) Qhov sib txawv ntawm lawv yog qhov tseem ceeb:
Kilowatt (KW) tau siv los ntsuas cov hluav taws xob tiag tiag muab los ntawm cov tshuab hluav taws xob, uas tau siv cov khoom siv hluav taws xob thiab cov khoom siv hauv cov tuam tsev.
Ntsuas ntsuas pom lub zog hauv cov kilovolt amperes (kva). Qhov no suav nrog lub zog muaj zog (KW), raws li cov fais fab tuag (kvar) siv los ntawm cov khoom siv xws li cov hloov pauv thiab hloov pauv. Reastre lub zog tsis tau noj, tab sis ncig ntawm lub zog thiab lub nra.
Lub zog tsim yog qhov sib piv ntawm lub zog ua rau pom meej. Yog hais tias lub tsev noj 900kW thiab 1000kva, lub zog muaj zog yog 0.90 lossis 90%.
Lub Diesel generator yog muaj cov nuj nqis ntawm KW, KVA, thiab PF. Txhawm rau kom ntseeg tau tias koj tuaj yeem xaiv cov diesel tsim hluav taws xob zoo tshaj plaws rau koj tus kheej, qhov kev qhia zoo tshaj plaws yog kom muaj cov tshuab hluav taws xob txiav txim siab qhov loj me ntawm cov teeb.
Qhov nyiaj siab tshaj plaws Kilowatt tsim tawm ntawm lub tshuab hluav taws xob yog txiav txim siab los ntawm lub cav diesel uas tsav nws. Piv txwv, xav txog lub tshuab hluav taws xob uas tau tsav los ntawm 1000 horsepower diesel cav nrog kev ua tau zoo ntawm 95%:
1000 horsepower yog sib npaug rau 745.7 kilowatts, uas yog cov ntaub qhwv lub hwj chim muab rau lub tshuab hluav taws xob.
Kev ua tau zoo ntawm 95%, qhov siab tshaj plaws tsim hluav taws xob ntawm 708.4KW
Ntawm qhov tod tes, qhov siab tshaj plaws kilovolt ampere nyob ntawm cov ntsuas hluav taws xob thiab tam sim no ntawm lub tshuab hluav taws xob. Muaj ob txoj hauv kev rau overload lub tshuab hluav taws xob:
Yog tias lub thauj khoom txuas nrog lub tshuab hluav taws xob tau ntau dua li cov kilowatts, nws yuav dhau lub cav.
Ntawm qhov tod tes, yog tias lub nra hnyav tshaj qhov ntsuas Kva, nws yuav tshaj tawm cov tshuab hluav taws xob cua.
Nws yog ib qho tseem ceeb kom qhov no nco ntsoov, raws li txawm tias lub thauj hauv kilowatts nyob hauv kilowatts nyob hauv qab tus nqi rated, lub tshuab hluav taws xob yuav muaj kev kub ntxhov hauv kilovolt.
Yog tias lub tsev noj 1000kVa, lub hwj chim ua ntej yuav nce rau 91%, tab sis nws yuav tsis dhau lub peev xwm ntawm lub tshuab hluav taws xob teeb.
Ntawm qhov tod tes, yog tias lub tshuab hluav taws xob ua haujlwm ntawm 1100kW thiab 1250kVa, lub hwj chim siv tsuas yog nce mus rau 88%, tab sis lub cav diesel yog overloaded.
Diesel cov tshuab hluav taws xob kuj tseem tuaj yeem cuam tshuam nrog tsuas yog KVA. Yog tias cov khoom siv ua haujlwm ntawm 950kW thiab 1300kva (73% PF), txawm tias lub cav diesel tsis dhau, cov windings yuav tseem overloaded.
Hauv cov ntsiab lus, cov neeg hluav taws xob diesel tuaj yeem tshaj lawv cov kev ntsuas muaj zog yam tsis muaj teeb meem, ntev npaum li KW thiab KVA nyob hauv qab lawv cov txiaj ntsig. Nws tsis pom zoo kom ua haujlwm hauv qab no qhov ntsuas hauv PF, raws li kev ua haujlwm ntawm lub tshuab hluav taws xob yog qhov tsawg. Thaum kawg, tshaj lub KW ntsuas lossis kev ntaus nqi KVA yuav ua rau cov khoom siv puas tsuaj.
Yuav ua li cas ua thiab lagg txaij lub zog cuam tshuam cuam tshuam diesel generators
Yog tias tsuas yog cuam tshuam nrog lub tshuab hluav taws xob thiab voltage thiab qhov tam sim no yog ntsuas, lawv AC WillForms yuav phim thaum ua kom pom cov twj digital. Ob lub cim qhia hloov ntawm qhov muaj txiaj ntsig thiab tsis zoo, tab sis lawv hla ob 0V thiab 0a ib txhij. Hauv lwm lo lus, voltage thiab tam sim no yog nyob rau theem.
Hauv qhov no, lub zog ntawm lub nra yog 1.0 lossis 100%. Txawm li cas los xij, lub zog siv hluav taws xob ntawm cov khoom siv feem ntau hauv cov tuam tsev tsis yog 100%, uas txhais tau tias lawv cov hluav taws xob thiab qhov tam sim no yuav ua rau lwm tus:
Yog hais tias lub ncov ac voltage ua rau lub ncov tam sim no, lub nra muaj lub peev xwm lag luam. Cov thauj khoom nrog tus cwj pwm no hu ua inductive thauj, uas suav nrog cov tshuab hluav taws xob thiab hloov hluav taws xob.
Ntawm qhov tod tes, yog tias tam sim no ua qhov hluav taws xob, lub nra muaj cov coj muaj hwj chim. Lub nra nrog tus cwj pwm no hu ua lub peev xwm capacitute, uas suav nrog cov roj teeb, cov txhab hluav taws xob muaj peev xwm, thiab cov khoom siv hluav taws xob.
Feem ntau cov tsev muaj cov khoom lag luam ntau dua li lub nra hnyav. Qhov no txhais tau hais tias tag nrho lub zog hluav taws xob feem ntau yog lagging, thiab diesel generator teeb tau tsim tshwj xeeb rau hom kev thauj khoom no. Txawm li cas los xij, yog tias lub tsev muaj ntau lub peev xwm siv tau, tus tswv yuav tsum ceev faj vim tias lub tshuab hluav taws xob tsim nyog yuav ua rau muaj peev xwm ua tau zoo li lub zog hluav taws xob. Qhov no yuav ua rau kev tiv thaiv tsis siv neeg, txuas cov cuab yeej los ntawm lub tsev.
Lub sijhawm Post: Feb-23-2024