Cov hluas-theem transformer. Lub hom phiaj, qauv thiab lub ntsiab yam ntxwv

Muaj yog ib tug laus dag lub koom haum. Nyob rau cov nqe lus nug ntawm tus kws qhia ntawv "yuav ua li cas ib leeg-theem transformer" buzzing me nyuam kawm ntawv nyob rau hauv teb: "Oo-oo-oo!". Suab qhov no yeej tshwm sim, nws yog vim lub fact tias thaum koj tsiv mus nyob rau induction teb tshwm sim lub magnetic striction nyhuv, ua rau cov phaj rau co sib nqus Circuit Court.

Cov hluas-theem transformer rau generating ib tug alternating voltage rau lub load yam nqi tsis tau ib tug peb-theem fais fab mov.

Txhua transformer muaj ob theem pib Cheebtsam: cov tub ntxhais thiab Coils lawv yog tsis tsawg tshaj ob tug. Lub hauv paus ntsiab lus ntawm cov lag luam yog yooj yim. Raws li ib tug tshwm sim ntawm kis hluav taws xob tam sim no los ntawm ib tug neeg xyuas pib nyob rau hauv cov thawj winding, lub qhov ntxias electromotive quab yuam (EMF). Cov tub ntxhais muaj ferromagnetic phiaj, i.e. txhawb cov ntaub ntawv uas ntxiv dag zog rau lub magnetic teb (hluav taws xob steel tshwj xeeb qib).

Lub magnitude ntawm lub EMF txiav txim los ntawm cov mis:

E = 4,44 x F x f x ω

qhov twg:

F - lub amplitude ntawm lub magnetic flux;

f - zaus ntawm qhov tam sim no;

ω - lub xov tooj ntawm koj lem nyob rau hauv lub winding.

Lub permissible load peev xwm, uas "drags" ib leeg-theem transformer, yog muab los ntawm seem nyob ntawm tej, uas yog lub qhov txhab coils thiab sib nqus Circuit Court Q, nyob rau hauv particular permeability ferromagnetic μ. Qhov ntev ntawm cov tub ntxhais thiab tus xov tooj ntawm windings yog qhov kev kawm ntawm xam, uas yog feem ntau cov kev kawm ntawm cov hoob kawm kev ua hauj lwm nyob rau hauv cov kev universities.

Nyob rau hauv txhua rooj plaub, qhov ntau haib ib leeg-theem voltage transformer, qhov ntau impressive lawv loj. Nyob rau lawv lub cev feem ntau muaj ib daim ntawv lo nrog ib daim ntawv teev txog kev tsis (pub tam sim no tawm tswv yim thiab tso zis voltages). Txawm li cas los, qhov no yog tsis ib txwm rooj plaub.

Nyob rau hauv kev xyaum, muaj ntau repairers yog feem ntau ntsib qhov yuav tsum tau los hloov lub hlawv-tawm tib-theem voltage transformer. Nyob rau hauv thiaj li yuav xyuas kom meej tus ntsuam yuav tsum tau soj ntsuam tus yam ntxwv ntawm tus ntaus ntawv, npaj los hloov.

Tus thawj tshaj plaws ua yog los mus txiav txim lub tswv yim winding. Thaum kauj ruam-down transformers nws muaj tus loj tshaj kuj.

Ces, xa nws mus rau hauv ib tug network, nws tseem tau mus ntsuas cov zis voltage ntawm kaw. Qhov ratio ntawm cov tswv yim thiab tso zis emf yog lub transformation coefficient K. Nws kuj yog sib npaug zos fractions Rin N. / N O., I.e. tus xov tooj ntawm koj lem nyob rau hauv lub windings.

Tom qab ntawd, raws li cov load yuav kev cob cog rua haib nce mus nce los kuj (resistor) thiab tshem tawm cov tam sim no-voltage yam ntxwv los ntawm defining lub nyob tam sim no. Raws li cov load tsub kom cov qhov tso zis voltage maj txo.

Transformers yog tsis tsuas lub hwj chim, tab sis kuj cov kev ntsuas. Nyob rau hauv tus neeg mob thaum nws yog tsim nyog los txhais ib tug tseem ceeb npaum li cas tam sim no nyob rau hauv ib tug Circuit Court siv ib tug ammeter. Nws muaj sequentially, thiab yuav tsum tau muaj ib tug uas tsis muaj kuj nyob rau hauv ua ke nrog nrog ib tug loj tus ntoo khaub lig-section hlau nyob rau hauv lub nqus deflection system. Xws li ib tug ntaus ntawv yuav kim heev thiab loj heev, ces siv ib theem tam sim no transformers uas tshem tawm proportionally txo tus nqi, thiab pub rau lawv mus rau lub pa serial ammeters. Xam amperage yog yooj yim, nws tseem tsuas mus thov tej yam zoo rau lub cev.