Yuav ua li cas yog lub hwj chim los ntawm lub qhov hluav taws xob, yog hais tias lub transformer yog xam tau tias yog zoo tagnrho?
Yuav ua li cas yog lub hwj chim tawm ntawm lub qhov hluav taws xob, yog hais tias lub transformer yog xav tias zoo tagnrho? Qhov no yog vim qhov zoo tagnrho transformer tsis muaj hluav taws xob poob, piv txwv li nws tsis muaj lub zog poob thiab lub zog tawm tswv yim yog sib npaug ntawm cov zis hluav taws xob.
Cov yam ntxwv ntawm qhov zoo tagnrho transformer yog:
1. tsis muaj zog poob: ib qho zoo tagnrho transformer tsis siv lub zog thiab tag nrho cov input zog yog pauv mus rau cov zis.
2. qhov piv ntawm input thiab output voltages yog sib npaug rau qhov piv ntawm lem: V_in / V_tawm=N_primary / N{{5} }secondary, qhov twg V_in thiab V_ tawm yog cov input thiab output voltages, thiab N_primary thiab N_secondary yog tus naj npawb ntawm cov thawj thiab lwm yam coils feem.
3. Qhov sib piv ntawm cov tswv yim thiab cov zis tam sim no sib npaug rau qhov kev hloov pauv ntawm tus lej hloov: I_in / I_ tawm=N_secondary / N{ {5}}thawj, qhov twg kuv_in thiab kuv_ tawm yog cov input thiab output tam sim no, feem.
Txij li thaum tsis muaj hluav taws xob poob hauv qhov zoo tshaj plaws transformer, lub hwj chim rub los ntawm lub qhov hluav taws xob hluav taws xob (lub zog hluav taws xob) yog sib npaug rau lub hwj chim noj ntawm lub load (tso zis hluav taws xob). Qhov no tuaj yeem qhia tau los ntawm kev sib npaug hauv qab no:
P_hauv=P_ tawm
Qhov twg P_in yog lub zog input thiab P_ tawm yog lub zog tso zis.
Yog hais tias lub zog ntawm lub load thiab qhov sib piv ntawm lub transformer paub, lub zog input tuaj yeem xam. Piv txwv li, yog tias lub zog load yog P_load thiab qhov sib piv yog N_primary / N_secondary, ces lub zog input P_in tuaj yeem xam los ntawm cov qauv hauv qab no:
P_hauv=P_load * (V_in / V_load)^2
Qhov twg V_in yog qhov input voltage thiab V_load yog qhov load voltage. Qhov no yog vim hais tias qhov piv ntawm cov input thiab output voltages ntawm ib tug zoo tagnrho transformer yog sib npaug zos rau qhov ratio ntawm cov lem, thiab lub hwj chim yog proportional rau lub square ntawm lub voltage.
Nco ntsoov tias qhov kev sib tham saum toj no yog nyob ntawm qhov kev xav ntawm qhov zoo tagnrho transformer. Hauv kev xyaum, muaj qee lub zog poob los ntawm lub tshuab hloov pauv, yog li lub zog rub tawm ntawm lub qhov hluav taws xob feem ntau yuav ntau dua li lub zog siv ntawm lub load.
Txuas nrog peb:
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