Kev txiav txim efficiency ntawm lub transformer

Transformer - yog ib tug hluav taws xob tshuab apparatus uas yog tsim los hloov ib AC mus rau lwm nqi. Transformers hauj lwm rau alternating tam sim no. Cov kis ntawm cov cav tov muaj widest li hluav taws xob tshaj ntev ncua kev yog tsim nyog los hloov mus rau ib tug voltage ntau ntau dua li cov theem uas yuav tsum tau rau lub hwj chim kev lag luam los yog kev siv hauv tsev. Yog li, kev siv ntawm cov transformer thiaj li hwj chim tsis thaum lub sij hawm kis tau tus mob thiab yuav ua tau kom zoo. Ib tug ntawm cov tseem ceeb tshaj plaws yam ntxwv ntawm no tshuab yog lub efficiency ntawm lub transformer, piv txwv li efficiency. Tsis tas li ntawd ib qho tseem ceeb cov yam ntxwv yuav tsum tau hu ua ib tug transformation coefficient txiav txim los ntawm tus piv ntawm lub tswv yim voltage rau cov qhov tso zis.

Transformer - yog feem ntau zoo li qub ntaus ntawv. Nws muaj ib tug pa transformer (thiab lawv tuaj nyob rau hauv ob peb ntaub ntawv) ntawm cov tub ntxhais, uas yog sau los ntawm ferromagnetic phiaj, raws li zoo raws li thawj thiab windings, uas yog nyob opposite rau cov tub ntxhais. Raws li twb tau hais, muaj lub ntsiab hom transformers: nce (tso zis voltage siab tshaj tswv yim) thiab tej (cov zis voltage yog tsawg tshaj li nyob rau kev nkag). Ib qho tseem ceeb mob ntawm tus dais no yog ib tug voltage zaus.

Yuav kom txiav txim seb lub efficiency ntawm lub transformer, peb ua kom paub cov nram qab no cim:

• P1 - lub fais fais fab noj los ntawm lub transformer,
• P2 - hwj chim zis,
• PL - hwj chim tsis tau.

Nyob rau hauv cov ntaub ntawv no, raws li txoj cai ntawm kev txuag ntawm lub zog yuav siv sij hawm rau hauv daim ntawv: P1 = P2 + PL. Nrog rau cov designations yooj yim neeg cov mis transformer efficiency. Formula efficiency yuav ntawm daim ntawv no: n = P2 / P1 = (P1- PL) / P1 = 1- PL / P1. Raws li koj tau pom, nws muaj peev xwm yuav sawv cev nyob rau hauv ob peb txoj kev sib txawv. Los ntawm lub xeem kab zauv qhia tau hais tias lub efficiency ntawm lub transformer yuav ua tsis tau ntau tshaj li 1 (i.e., tsis yooj yim sua kom tau efficiency, tshaj ib puas feem pua). Qhov no yog to taub.

Qhov tseeb muab xam los ntawm cov transformer efficiency - qhov no qhov teeb meem yog nyuab tshaj li qhov nws yuav zoo li thaum xub thawj siab ib muag. Thaum tsim thiab tsim circuits thiab zuag qhia tag nrho kev tsim ntawm lub transformer los yog ib tug series ntawm ib tug tej yam ntawm transformer tsim engineers feem ntau fim tej yam teeb meem. Piv txwv li, los txo tus nqi ntawm cov transformer yog tsim nyog los txo cov ntaub ntawv uas noj. Txawm li cas los, nyob rau hauv lwm cov tes, nyob rau hauv thiaj li yuav ua tus ntaus ntawv ntau txhim khu kev qha nyob rau hauv lub lag luam, cov ndlwg ntawm cov ntaub ntawv no yuav tsum tau muab ntau zog.

Nws yog rau cov yog vim li cas contradictory nqi transformer efficiency feem ntau yog ua ib tug qauv, li no normalizing tsis. Nyob rau hauv kev txiav txim ntawm tus nqi ntawm lub efficiency ntawm lub transformer yog tsim nyog los noj mus rau hauv tus account tus nqi ntawm cov ntaub ntawv, nqi hluav taws xob thiab kis tau tus mob kab, piv txwv li, coj mus rau hauv tus account ib tug xov tooj ntawm nyiaj txiag yam. Transformer efficiency tej zaum yuav txawv nyob ntawm seb lub load, thiab qhov no zoo tshaj yuav tsum tau coj mus rau hauv tus account thaum tsim lub ntaus ntawv qauv.