Daim ntawv thov ntawm ATSE-Automatic hloov pauv tuaj yeem daws qhov teeb meem sib tshooj ntawm cov kab nruab nrab

Tsis siv neeg hloov pauv hloov (ATSE)tuaj yeem daws qhov teeb meem sib tshooj ntawm cov kab nruab nrab.Yog li cas peb txhais li cas los ntawm nruab nrab kab sib tshooj?

Daim duab 1: Xav tias qhov voltage ntawm lubDC zogmov yog 220V, thiab tus nqi kuj ntawm peb load resistors R yog 10 Ohms.Cia peb xam qhov voltage hla lub load resistor Ra:

Rau resistor Ra, peb muaj:

Daim ntawv ceeb toom tias muaj peb qhov dej ntws los ntawm kev tawm tsam Ra, ib qho tawm ntawmfais fab movEa thiab rov qab mus rau qhov tsis zoo ntawm lub hwj huam mov los ntawm LINE N. Lwm qhov ob tawm ntawm Ea thiab rov qab mus rau qhov tsis zoo ntawm lub davhlau ya nyob twg ntawm Eb lossis Ec.Tab sis vim hais tias lub zog hluav taws xob ntawm ob qhov chaw hauv lub voj voog no sib npaug thiab sib npaug, qhov tam sim no yog xoom.
Lwm qhov uas xav tau kev saib xyuas tshwj xeeb yog qhov voltage ntawm N point yog 0V.
Cia peb saib daim duab 2 dua: N hauv daim duab tawg ua ob lub ntsiab lus, N thiab N '.Dab tsi yog qhov voltage hla tus resistor Ra?Nws yog ib qho yooj yim los qhia tias qhov voltage hla Ra yog 0V.
Ntawm chav kawm, qhov chaw ntawm no yog: peb lub hwj chim mov tsis nyob rau hauv Circuit Court yog kiag li zoo ib yam, thiab cov kuj tsis zoo ib yam nkaus, thiab txawm lub parameters ntawm cov hlau, uas yog cov kab kuj, kuj zoo ib yam.
Hauv kab tiag tiag, cov kev ntsuas no yuav tsis zoo ib yam, yog li Ra yuav muaj qhov tsis tshua muaj hluav taws xob.Cia peb hu nws N' voltage.

Cia peb saib daim duab hauv qab no:

Raws li peb tuaj yeem pom, cov khoom siv hluav taws xob hauv FIG.3 thiab 4, fig.1 and FIG.2 yog hloov los ntawm DC mus rau peb-theem AC, thiab theem voltage yog 220V, yog li cov kab hluav taws xob yog 380V, thiab theem sib txawv ntawm peb theem yog 120 degrees.
Dab tsi yog qhov voltage hla tus resistor Ra hauv daim duab 3?
Txij li lub hom phiaj ntawm qhov kev tshaj tawm no tsuas yog qhia txog qhov teeb meem, tsis yog ua kom muaj nuj nqis ntawm lub voj voog.Peb yuav tsis tau ua qhov xam qhov tseeb.
Tab sis peb tuaj yeem paub tseeb tias, rau FIG.3, qhov hluav taws xob thoob plaws lub resistor Ra kuj yog kwv yees li ntawm 217.8V thiab qhov hluav taws xob interphase yog xoom.
Hauv FIG.4, peb pom tias n-kab tawg rau hauv N thiab N ', yog li dab tsi tshwm sim rau qhov hluav taws xob ntawm qhov taw tes N '?
Cov lus teb yog tib yam rau DC.Yog hais tias lub Circuit Court yog kiag li symmetrical, Un' sib npaug 0V;Yog tias qhov ntsuas tsis sib xws tsis sib xws, Un 'tsis sib npaug 0V.
Nyob rau hauv lub tswv yim Circuit Court, tshwj xeeb tshaj yog nyob rau hauv lub teeb pom kev zoo, peb-theem AC yog asymmetric, yog li tam sim no ntws los ntawm N kab los yog PEN kab (zero kab).Thaum N kab lossis PEN kab tawg, qhov hluav taws xob tom qab qhov tawg taw tes nce.Hauv qhov xwm txheej hnyav, nws nce mus rau theem voltage, uas yog 220V.

Cia peb saibATSE:

Saib hauv qab no:

Hauv daim duab no peb pom ob txoj kab nkag, qhovATSE, thiab tau kawg lub teeb load.Ntawm no, txawm li cas los xij, tus naj npawb ntawm cov teeb ntawm peb theem sib txawv, nrog rau theem A yog qhov hnyav tshaj plaws.
Cia peb xav txog qhov ntawdATSEtam sim no kaw lub voj T1 ntawm sab laug, thiab tam sim no kev ua haujlwm yog mus ntawm T1 mus rau T2.
Yog hais tias, thaum lub sij hawm hloov dua siab tshiab, 1N kab raug txiav tawm thawj zaug thiab peb theem raug txiav tawm tom qab, ces thaum lub sij hawm hloov dua siab tshiab, peb tuaj yeem paub tam sim ntawd los ntawm cov kev paub saum toj no hais tias qhov nruab nrab ntawm cov kab hluav taws xob ntawm cov load yuav nce lossis poob.Yog tias qhov hluav taws xob ntawm lub teeb dhau ntawm theem voltage ntau dhau, lub teeb yuav hlawv tawm thaum lub sij hawm hloov dua siab tshiab.
Qhov ntawd yog qhov sib tshooj ntawm cov kab nruab nrab tuaj.

Qhov kev daws teeb meem yog dab tsi?

ATSEnrog nruab nrab kab sib tshooj muaj nuj nqi, thaum nws hloov mus rau, ua ntej xyuas kom meej tias peb-theem voltage yog switched ua ntej, thiab ces N kab yog switched rau thaum kawg;Thaum nws qhib, ua ntej xyuas kom qhib N kab, thiab tom qab ntawd tig rau peb-theem voltage.Txawm li cas los xij, ATSE tuaj yeem sib tshooj N kab ntawm ob txoj kev tam sim ntawd.Qhov no yog qhov nruab nrab kab sib tshooj ua haujlwm.