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Txhua yam khoom siv hluav taws xob, suav nrog cov khoom siv lub cev muaj zog, tau teev nws qhov ntsuas hluav taws xob rau kev ua haujlwm ib txwm muaj, thiab txhua qhov kev sib txawv ntawm qhov hluav taws xob yuav ua rau muaj qhov tsis zoo rau kev ua haujlwm ntawm cov khoom siv hluav taws xob.
Rau cov cuab yeej siv high-end, cov cuab yeej tiv thaiv tsim nyog tau txais yuav.Thaum lub hwj chim mov voltage yog txawv txav, lub hwj chim mov raug txiav tawm rau kev tiv thaiv.Rau cov cuab yeej meej heev, qhov hluav taws xob tsis tu ncua yog siv rau kev hloov kho.Txawm li cas los xij, qhov ua tau ntawm cov khoom siv lub cev muaj zog, tshwj xeeb tshaj yog cov khoom siv lub cev muaj zog, siv cov khoom siv hluav taws xob tas li yog qhov me me, thiab muaj ntau qhov kev tiv thaiv hluav taws xob.
Rau ib-theem motors, tsuas muaj ob qhov xwm txheej: high voltage thiab low voltage, thaum rau peb-theem motors, muaj teeb meem ntawm qhov voltage tshuav.Qhov ncaj qha cuam tshuam ntawm peb qhov sib txawv voltage no yog qhov nce tam sim no lossis qhov tsis txaus ntseeg tam sim no.
Raws li cov txheej txheem ntawm lub cev muaj zog, qhov sib txawv ntawm qhov sib txawv ntawm qhov ntsuas hluav taws xob ntawm lub cev muaj zog tsis tuaj yeem tshaj 10%, thiab lub zog ntawm lub cev muaj zog yog ncaj qha proportional rau square ntawm lub davhlau ya nyob twg voltage ntawm lub cev muaj zog.Thaum qhov hluav taws xob siab dhau lawm, lub cev muaj zog hauv lub cev yuav nyob rau hauv lub xeev ntawm kev sib nqus saturation, thiab qhov nce ntawm cov stator tam sim no yuav ua rau muaj cua sov loj ntawm winding, txawm tias qhov teeb meem zoo ntawm winding burning.Txawm li cas los xij, nyob rau hauv cov ntaub ntawv ntawm qhov tsis tshua muaj hluav taws xob, tej zaum yuav muaj qee qhov teeb meem hauv kev pib lub cev muaj zog, tshwj xeeb tshaj yog rau lub cev muaj zog khiav ntawm kev thauj khoom.Yuav kom ua tau raws li qhov yuav tsum tau ua ntawm lub cev muaj zog khiav ntawm kev thauj khoom, qhov tam sim no kuj yuav tsum tau nce ntxiv, thiab qhov tshwm sim ntawm qhov nce tam sim no kuj yuav yog qhov cua sov lossis txawm tias kub hnyiab ntawm winding, tshwj xeeb tshaj yog rau kev ua haujlwm ntev-voltage, uas yog qhov hnyav dua.
Unbalanced voltage ntawm peb-theem lub cev muaj zog yog ib qho teeb meem ntawm kev siv fais fab.Thaum lub voltage tsis sib npaug, nws yuav inevitably ua rau unbalanced motor tam sim no.Qhov cuam tshuam tsis zoo ntawm qhov tsis sib npaug ntawm qhov hluav taws xob tsis sib haum ua rau muaj qhov sib nqus hauv huab cua sib txawv ntawm lub cev muaj zog rov qab mus rau rotor kev sib hloov.Qhov me me tsis zoo ib ntus ntawm qhov hluav taws xob yuav ua rau tam sim no ntws los ntawm winding ntau dua li qhov tam sim no thaum qhov hluav taws xob sib npaug.Qhov zaus ntawm qhov tam sim no ntws los ntawm lub rotor bar yog yuav luag ob npaug ntawm qhov ntsuas zaus, yog li tam sim no squeezing nyhuv nyob rau hauv lub rotor bar ua rau poob ntxiv tus nqi ntawm lub rotor winding ntau loj dua li ntawm stator winding.Qhov kub nce ntawm stator winding yog siab dua li ntawm lub stator khiav hauv qhov hluav taws xob sib npaug.
Thaum qhov hluav taws xob tsis sib npaug, qhov xauv-rotor torque, qhov tsawg kawg nkaus torque thiab siab tshaj plaws torque ntawm lub cev muaj zog yuav txo qis.Yog hais tias qhov voltage imbalance loj heev, lub cev muaj zog yuav tsis ua hauj lwm ib txwm.
Thaum lub cev muaj zog khiav ntawm tag nrho cov load nyob rau hauv unbalanced voltage, vim hais tias tus nqi qis nce nrog qhov nce ntxiv ntawm qhov poob ntawm lub rotor, qhov ceev yuav txo me ntsis rau lub sijhawm no.Nrog rau qhov nce ntawm qhov voltage (tam sim no) tsis txaus, lub suab nrov thiab kev vibration ntawm lub cev muaj zog tuaj yeem nce ntxiv.Kev vibration tuaj yeem ua rau lub cev muaj zog lossis tag nrho lub cev tsav.
Txhawm rau txhawm rau txheeb xyuas qhov ua rau lub cev muaj zog tsis sib xws, nws yuav ua tau los ntawm kev siv hluav taws xob ntsuas hluav taws xob los yog hloov tam sim no.Cov khoom siv feem ntau yog nruab nrog cov cuab yeej ntsuas hluav taws xob, uas tuaj yeem txheeb xyuas los ntawm cov ntaub ntawv sib piv.Rau cov uas tsis muaj kev soj ntsuam cov cuab yeej, kev tshawb nrhiav tsis tu ncua lossis ntsuas tam sim no yuav tsum tau txais.Rau lub cev muaj zog uas tuaj yeem tig mus rau pem hauv ntej thiab rov qab, koj tuaj yeem hloov pauv ob-theem fais fab mov kab thiab saib xyuas qhov kev hloov pauv tam sim no, thaum ntsuas qhov ntsuas hluav taws xob ncaj qha.Tom qab tshem tawm qhov teeb meem ntawm qhov tsis sib xws, nws yuav muaj teeb meem zoo xws li tig-rau-tig thiab theem-rau-theem.