Induction meter: txhais, tsim, hom thiab hom, specifications, ntaus ntawv, nuances ntawm kev ua haujlwm thiab daim ntawv thov

Cov txheej txheem:

Induction meter: txhais, tsim, hom thiab hom, specifications, ntaus ntawv, nuances ntawm kev ua haujlwm thiab daim ntawv thov
Induction meter: txhais, tsim, hom thiab hom, specifications, ntaus ntawv, nuances ntawm kev ua haujlwm thiab daim ntawv thov

Video: Induction meter: txhais, tsim, hom thiab hom, specifications, ntaus ntawv, nuances ntawm kev ua haujlwm thiab daim ntawv thov

Video: Induction meter: txhais, tsim, hom thiab hom, specifications, ntaus ntawv, nuances ntawm kev ua haujlwm thiab daim ntawv thov
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Cov ntsuas hluav taws xob yog cov ntsuas hluav taws xob nrov tshaj plaws hauv tsev neeg spectrum. Lawv yog siv nyob rau hauv txhua lub tsev raws li ib tug txhais tau tias ntawm kev tswj tus nqi ntawm cov hluav taws xob noj. Lwm qhov yog tias kev ua haujlwm ntawm kev tsim qauv yuav txawv. Cov tsoos thiab tseem muaj ntau hom ntawm cov cuab yeej no suav nrog lub ntsuas hluav taws xob induction, uas tseem muab rau ntau hom kev siv thiab kev ua haujlwm.

Txhais ntawm induction meters

Hluav taws xob induction meter
Hluav taws xob induction meter

Zoo li txhua lub ntsuas hluav taws xob, cov qauv induction muab rau kev nkag mus ntawm tam sim no los ntawm lawv cov conductors nrog kev sib txuas ntawm cov ntsuas ntsuas ntsuas. Lawv txawv ntawm qhov muaj peev xwm, qhov loj me, qhov siab tshaj plaws load, thiab lwm yam. Ua ntej ntawm tag nrho cov, induction counterhluav taws xob yog cov cuab yeej siv tshuab uas muab nrog rau kev suav cov tshuab. Ntxiv dua thiab, technically, nws "khoom" tuaj yeem muaj qhov sib txawv, tab sis cov ntsiab lus tseem ceeb tau coj los ntawm txoj cai electromagnetic ntawm kev ua haujlwm, uas tso cai rau koj los kho tus cwj pwm ntawm eddy tam sim no hla ib qho chaw sib nqus.

Cov cuab yeej cuab tam thiab lub hauv paus ntawm kev ua haujlwm ntawm cov cuab yeej

Lub hauv paus ntawm lub cuab yeej yog tsim los ntawm ob lub ntsiab lus - coils rau kev pabcuam voltage thiab tam sim no. Thawj yog kev cob cog rua nyob rau hauv parallel, thiab lub thib ob yog kev cob cog rua nyob rau hauv series. Ua ke lawv tsim tej yam kev mob rau electromagnetic flows, nyob rau hauv ib puag ncig ntawm uas, nyob rau hauv lub hauv paus ntsiab lus, nws yuav ua tau kom kho nrog rau kev ntsuas ntawm qhov tsim nyog parameters ntawm lub network. Kev ntsuas ncaj qha yog ua los ntawm kev siv nyiaj ntawm aluminium disk. Los ntawm txoj kev los ntawm ib tug cab los yog iav tsav, lub caij no yog mated nrog ib tug suav ntaus ntawv, muab tso rau hauv kev txiav txim. Thaum lub sijhawm ua haujlwm, qhov kev siv ntawm kev sib hloov disk yuav raug txiav txim los ntawm kev siv lub zog. Cov cuab yeej niaj hnub ntawm induction meter kuj tseem muaj qhov txawv ntawm qhov muaj cov khoom siv hluav taws xob uas ua rau nws tuaj yeem tso npe rau kev nyeem ntawv, kev tswj cov chaw taws teeb ntawm tus kheej ntsuas qhov ntsuas thiab txo qhov loj ntawm lub vaj huam sib luag nrog cov lus qhia ntawm kev noj. Tab sis txawm nyob rau hauv cov ntaub ntawv no, lub hauv paus ntsiab lus ntawm electromagnetic ntsuas los ntawm inducing coils yog khaws cia.

Induction ntsuas ntsuas
Induction ntsuas ntsuas

Creating a counter

thawj lub ntsuas hluav taws xob tau tshwm sim thaum kawg ntawm lub xyoo pua 19th, thaum Italian engineers nrhiav kev sib raug zoo ntawm ntau theem ntawm AC teb.tam sim no thiab hlau nplaum. Hauv kev tsim cov qauv yooj yim, cov khoom siv rotor tau siv zoo li lub tog raj kheej thiab tib lub disk. Nws tau teeb tsa los ntawm kev hloov hluav taws xob yam ntxwv. Cov kauj ruam tom ntej yog kev txhim kho ntawm tag nrho-fledged ntsia hlau mechanism, tab sis kom deb li deb tsis muaj voltage tswj cov ntsiab lus. Qhov tseeb, nyob rau theem no, cov hauv paus ntsiab lus ntawm kev ua haujlwm thiab cov cuab yeej cuab tam ntawm lub ntsuas hluav taws xob niaj hnub nrog tus kheej induction coils thiab lub cev hlau tig. Nyob rau hauv lub neej yav tom ntej, tus qauv tsim tau ntxiv nrog cov nres electromagnets, uas ua rau nws muaj peev xwm nthuav qhov kev ntsuas ntau yam nrog lub npe cyclometric. Tag nrho lub xyoo pua 20th yog cov txheej txheem ntawm optimizing rooj plaub, uas coj tsis tau tsuas yog mus rau optimization ntawm qhov ntev ntawm cov cuab yeej, tab sis kuj mus rau ib tug nce nyob rau hauv kev ntseeg siab ntawm lub ntsiab ntawm cov suav mechanism. Cov qauv tau dhau los ua qhov kub thiab txias, av noo thiab lub cev muaj zog. Qhov tseeb ntawm kev nyeem ntawv kuj tau nce ntxiv, uas yog qhov tshwj xeeb tshaj yog pom nyob rau hauv cov khoom siv tshiab tshiab nrog kev ua haujlwm tshiab thiab kev tswj hwm txoj hauv kev.

Thawj induction meters
Thawj induction meters

Induction meter classifications

Ua ntej ntawm tag nrho, ib qho yuav tsum paub qhov txawv ntawm ib leeg thiab peb-theem qauv. Thawj yog hais txog cov cuab yeej ntsuas hauv tsev uas npaj rau kev siv hauv tsev. Lawv yog powered los ntawm ib theem thiab muaj 4 terminals. Koj tuaj yeem txuas cov cuab yeej zoo li no mus rau lub zog loj loj. Raws li peb-theem induction meters, lawv muaj kev ntseeg siab dua thiab muab faib ua pawg nyob ntawm cov kev ua haujlwm. Yog li ntawd,Muaj cov qauv siv hauv tsev, hauv cov chaw tsim khoom thiab hauv cov chaw pej xeem. Ntxiv mus, nyob rau hauv lub domestic sphere lawv feem ntau yog siv yog ib tug haib zog noj infrastructure yog npaj nrog kev sib txuas ntawm cov khoom tsim tau xws li vuam tshuab, compressor chaw nres tsheb, twj tso kua mis, thiab lwm yam.

Electronic induction ntsuas
Electronic induction ntsuas

Tsis pub dhau tsev neeg ntawm induction metering li, twb tau hais txog cov tshuab thiab hluav taws xob hom qauv kuj txawv. Mechanics muaj nws qhov zoo cuam tshuam nrog qis zog dependence thiab kev ntseeg tau ntawm cov qauv. Electronics, nyob rau hauv lem, ua rau nws muaj peev xwm sib txawv qhov kev siv ntawm lub zog, uas yog yooj yim thaum siv hluav taws xob ntawm ob peb tariffs nyob ntawm tus neeg siv.

Instrument Specifications

Voltage yog tus yam ntxwv tseem ceeb ntawm cov ntsuas hluav taws xob. Cov txheej txheem sib txawv ntawm 220 txog 240 V, uas sib haum rau cov peev txheej ntawm cov qauv ib-theem. Nyob rau hauv cov ntaub ntawv ntawm peb-theem meters, peb yuav tham txog 380-400 V. Qhov siab tshaj plaws tam sim no load kuj coj mus rau hauv tus account nyob rau hauv kev xaiv ntawm ib tug induction ntaus ntawv. Tus nqi nominal yuav tsum tshaj tus nqi tam sim no uas lub tshuab pib tso cai. Piv txwv li, yog siv 25-30 A transformer, ces nws yog advisable rau nruab ib lub induction meter ntawm tsawg kawg yog 40 A. Nyob rau hauv tsev neeg, qhov siab tshaj plaws ntsuas rau tus yam ntxwv no tsis tshua muaj tshaj 100 A.

Rau ib lub tsev ntiav, muaj peev xwm txwv koj tus kheej kom yuav tus qauv rau 40-60 A. Nws kuj tseem yuav pab tau.xyuam xim rau cov chav kawm raug. Nyob rau hauv txoj cai, cov kev cai tsis tso cai rau kev khiav hauj lwm ntawm metering li nrog ib tug coefficient ntawm ntau tshaj 2.0. Qhov kev xaiv zoo tshaj plaws yog yuav khoom siv nrog chav kawm raug ntawm 1.0. Qhov no yog qhov tseem ceeb tsis yog vim tau txais cov ntaub ntawv raug ntau dua ntawm kev siv hluav taws xob, tab sis kuj yog rau kev saib xyuas kev ua haujlwm ntawm lub tsev lossis kev lag luam hluav taws xob.

Meter ua haujlwm

Kev ua haujlwm ntawm induction meter
Kev ua haujlwm ntawm induction meter

Tom qab xaiv tus qauv tsim nyog, ib qho chaw raug xaiv los nruab lub cuab yeej. Nws yog ntshaw kom tiv thaiv los ntawm lub cev, thermal thiab electromagnetic sab nraud influences. Mounting feem ntau yog ua los ntawm DIN rail thiab tag nrho cov khoom siv kho vajtse. Lub tsheb ciav hlau yog muab los ntawm ib qho thaiv nrog cov terminals, uas tuaj yeem cais los yog ua-hauv. Nyob rau hauv txhua rooj plaub, dhau los ntawm nws, cov cuab yeej tau koom ua ke rau hauv daim phiaj hluav taws xob hauv zos. Kev sib txuas yog tsim los ntawm cov neeg ua haujlwm ntawm lub tuam txhab muab hluav taws xob, uas tseem yuav tshawb xyuas cov xwm txheej ntawm lub cuab yeej.

Lub nuances ntawm kev ua haujlwm ntawm induction meters

Txhim kho induction meter
Txhim kho induction meter

Thaum lub sijhawm ua haujlwm ntawm kev ntsuas cov cuab yeej ntawm hom no, cov yam ntxwv hauv qab no ntawm kev ua haujlwm yuav tsum tau ua hauv siab:

  • Thaum qis qis hauv lub network, nws muaj peev xwm ua tau tias qhov tseeb yuav txo qis qis dua tus qauv, yog li nws raug pom zoo los saib xyuas qhov tsis sib xws ntawm tib qhov hluav taws xob siv lub stabilizer.
  • Yog tias tsis muaj kev tiv thaiv kev tiv thaiv, kev ua haujlwm ntawm lub ntsuas hluav taws xob tuaj yeem kho lub cev. Kho xws lirooj plaub, cov cuab yeej raug kaw. Los ntawm txoj kev, cov qauv hluav taws xob induction ntsuas tau tiv thaiv txhua yam ntawm "twisting" programmatically.
  • Kev ruaj ntseg siab. Txawm hais tias muaj kev puas tsuaj rau kev tswj hwm lub zog sab hauv, nws tseem tuaj yeem rov ua haujlwm tag nrho los ntawm kev hloov cov khoom ua tsis tiav.

Lub neej yav tom ntej ntawm induction metering thev naus laus zis

Txawm hais tias kev coj ncaj ncees ntawm kev coj ncaj ncees ntawm cov ntsiab lus ntawm electromagnetic accounting, cov tuam txhab tsis tso tseg ntu no, muab cov khoom siv nrog cov haujlwm tshiab. Kev cia siab rau kev txhim kho ntawm lub ntsuas hluav taws xob induction feem ntau cuam tshuam nrog cov txheej txheem digital rau kev ua thiab xa cov ntaub ntawv. Twb tau niaj hnub no muaj cov qauv nrog GSM-sensors, uas tag nrho txuag tus neeg siv los ntawm kev sau cov ntaub ntawv analogues. Qhov ntau ntawm cov haujlwm tseem ceeb tseem nthuav dav. Cov txheej no nthuav dav nrog lub peev xwm los sau npe zaus, qhov hluav taws xob thiab cov ntsuas microclimatic sab nraud.

Zoo kawg

Kev siv ntawm induction meter
Kev siv ntawm induction meter

Induction ntsuas cov cuab yeej niaj hnub no tau siv dav tsis yog hauv thaj chaw hauv tsev thiab kev lag luam, tab sis kuj hauv kev lag luam. Thiab qhov no siv tau rau ob theem peb thiab ib-theem induction meters nrog hluav taws xob "khoom". Xws li kev xaiv yog txiav txim siab los ntawm cov kev xav tau siab rau kev ntseeg siab thiab kev ntseeg siab ntawm lub zog ua haujlwm. Txawm li cas los xij, tseem muaj teeb meem nrog kev siv cov khoom siv induction. Cov yam tsis zoo cuam tshuam txog qhov raug qis dua, kev nkag siab zoo rau lub network loads thiab kev tiv thaiv tsis zoo.hluav taws xob tub sab.

Pom zoo: