Kev hloov pauv kV rau V yog dab tsi? Transformer Voltage piav qhia yooj yim

Nyem rau daim duab kom paub ntau ntxiv.

Yog tias koj tau ua haujlwm nyob ib puag ncig transformers, substations, lossis cov tshuab hluav taws xob muaj zog, koj tau pom qhov ntsuas hluav taws xob tau sau rau hauv ob qho tib si.kV uathiabV. Thaum xub thawj siab ib muag, nws zoo nkaus li yooj yim txaus. Tab sis hauv cov tshuab hluav taws xob tiag tiag, kev sib raug zoo ntawm "kV rau V" yog ntau dua li tsuas yog txav tus lej lej ib ncig. Nws ncaj qha cuam tshuam li cas transformers tsim, ntsia, thiab siv txhua hnub.

Hauv kev tsim hluav taws xob engineering, transformers yog cov cuab yeej ua kom loj - ntsuas qhov hloov pauv tau. Yog tsis muaj lawv, daim phiaj hluav taws xob niaj hnub ua ncaj ncees yuav tsis ua haujlwm li lawv niaj hnub no.

Yog li cia peb rhuav nws hauv qhov ua tau zoo, yooj yim -kom- nkag siab txoj hauv kev.

Lo lus "kV rau V" tsuas yog hais txog kev hloov kilovolts (kV) rau hauv volts (V).

Ib kilovolt sib npaug 1,000 volts.

Nov yog qhov kev sib raug zoo hauv paus:

1 kV=1000 V

Yog li:

Zoo nkauj ncaj, txoj cai? Txawm li cas los xij, cov kev hloov pauv no tseem ceeb heev thaum xaiv cov transformers, rwb thaiv tsev, switchgear, thiab cable ratings.

Thiab yuam kev ntawm no? Yog lawm, lawv tuaj yeem tau txais tus nqi nrawm.

Hauv cov tsev nyob, peb feem ntau tham txog qhov voltage hauv volts. Piv txwv li:

120V hauv qee lub tebchaws

230V lossis 240V lwm yam

Tab sis ib zaug voltage theem ua loj, engineers hloov mus rau kilovolts vim hais tias cov zauv yooj yim nyeem thiab tswj.

Xav txog kev sau 132,000 volts ntawm txhua daim ntawv kos duab thiab khoom siv. Siv 132kV tsuas yog huv thiab siv tau ntau dua.

Transformers feem ntau ua haujlwm hauv cov kab no:

Yog li thaum tib neeg tshawb nrhiav "kV rau V," lawv feem ntau sim nkag siab txog qhov ntsuas qhov ntsuas hluav taws xob lossis hluav taws xob hloov hluav taws xob.

Lub transformer ua haujlwm los ntawm electromagnetic induction. Suab technical, tab sis lub tswvyim yog tiag tiag elegant.

Lub transformer muaj ob windings:

Thawj winding

Secondary winding

Thaum alternating tam sim no ntws los ntawm thawj sab, nws tsim ib tug magnetic teb nyob rau hauv lub transformer core. Qhov magnetic teb ces induces voltage nyob rau hauv lub thib ob winding.

Qhov voltage hloov nyob ntawm qhov sib piv.

Feem ntau, kev hloov pauv feem ntau txhais tau hais tias muaj zog dua.

Ib kauj ruam -down transformer yuav hloov:

11kV rau 415V

33kV rau 400V

132kV rau 11kV

Lub caij no, ib kauj ruam - nce transformer ua qhov sib txawv thiab nce voltage rau kev xa mus.

Nov yog qhov uas tib neeg qee zaum saib dhau: kev xa hluav taws xob ntawm qhov hluav taws xob siab dua txo qhov tam sim no.

Thiab qis tam sim no txhais tau tias qis dua kev sib kis.

Qhov ntawd yog ib qho ntawm cov laj thawj tseem ceeb ntawm cov tuam txhab hluav taws xob siv hluav taws xob siab -voltage transformers txhua qhov chaw thoob plaws kab sib chaws.

Piv txwv li, hluav taws xob tsim tawm ntawm lub tshuab hluav taws xob yuav pib nyob ib puag ncig:

11kv ua

13,8kv 1

15kv ua

Tom qab ntawd transformers nce mus rau:

1 32kv

220 kV ua

400 kV ua

ntev - kis tau tus mob.

Ze rau cov tsev thiab kev lag luam, lwm cov transformers nce qhov voltage rov qab mus rau qib siv tau.

Nws yog zoo li ib tug voltage relay haiv neeg tshwm sim tsis tu ncua nyob rau hauv tag nrho cov hluav taws xob network.

Qee qhov kev hloov pauv hluav taws xob tshwm sim dhau los hauv kev lag luam thiab kev siv hluav taws xob.

Nov yog ob peb yam piv txwv:

Cov kev ntsuas transformer no tau ua tib zoo xaiv raws li qhov xav tau ntawm kev thauj khoom, kev tsim qauv, thiab cov qauv kab sib chaws hauv zos.

Tsis yog txhua lub teb chaws siv cov qib voltage tib yam nkaus, uas tuaj yeem cuam tshuam cov neeg tuaj tshiab me ntsis.

Thaum koj pib cuam tshuam nrog nruab nrab lossis siab voltage transformers, rwb thaiv tsev dheev dhau los ua qhov loj heev.

Thaum tsis tshua muaj hluav taws xob, cov txheej txheem rwb thaiv tsev feem ntau txaus. Tab sis siab -voltage transformers xav tau ntau zog dielectric tiv thaiv.

Yog vim li cas ntau lub zog transformers siv:

Mineral insulating roj

Pressboard rwb thaiv tsev

Epoxy resin systems

SF6-insulated switchgear hauv qee qhov kev teeb tsa

Txawm tias qhov tsis zoo ntawm cov rwb thaiv tsev me me tuaj yeem ua rau arcing, overheating, los yog kev puas tsuaj rau transformer.

Thiab ncaj ncees, kho cov transformers loj yog tsis pheej yig los yog ceev.

Transformer nameplates feem ntau qhia qhov ntsuas hluav taws xob hauv ob qho tib si kV thiab V.

Piv txwv li:

Tus kws tshaj lij yuav tsum nkag siab meej txog "kV rau V" kev sib raug zoo ua ntej kev teeb tsa lossis kev sim pib.

Kev sib xyaw ntawm 11kV thiab 11V pom tseeb suab tsis yooj yim sua, tab sis qhov kev xav tsis raug txog cov chav kawm voltage tshwm sim hauv cov haujlwm tiag tiag.

Tshwj xeeb tshaj yog thaum cov ntaub ntawv rushed. Qhov twg, hmoov tsis, tshwm sim ntau dua li cov neeg lees paub.

Cov kab lus "kV rau V" yuav zoo li ib qho yooj yim hluav taws xob hloov dua siab tshiab, tab sis nyob rau hauv transformer systems, nws sawv cev rau ib yam dab tsi loj dua. Nws txuas hluav taws xob tsim hluav taws xob, kev sib kis, kev xa tawm, thiab kev siv hluav taws xob niaj hnub rau hauv ib qho kev sib txuas txuas ntxiv.

Transformers ua rau cov kev hloov hluav taws xob no ua tau zoo thiab ua tau zoo. Txawm hais tias nws tab tom nqis 220kV nqis rau hauv lub nroog daim phiaj lossis hloov 11kV rau hauv lub tsev siv tau, cov txheej txheem yog qhov tseem ceeb rau cov txheej txheem niaj hnub no.

Thiab thaum koj pib ua hauj lwm nrog transformers tsis tu ncua, koj paub zoo nkauj sai heev tias kev nkag siab voltage tsis yog txoj kev xav xwb. Nws yog ib feem ntawm txoj haujlwm txhua hnub.

Hu rau tam sim no