Cia peb ua siab ncaj. Xaiv AC kab EMI lim feem ntau zoo li kev xav tom qab-ib lub thawv tsim nyog los kuaj xyuas EMC ua raws. Koj pom ib qho uas haum rau lub vaj huam sib luag txiav tawm thiab phim koj qhov ntsuas tam sim no, thiab koj hu nws ib hnub. Tab sis yuav ua li cas yog tias cov lim dej no yog vim li cas koj qhov kev ntsuas ntsuas qhov ntsuas tau nrov nrov, lossis koj qhov kev tswj hwm pom muaj qhov tsis sib xws?
Ib yam li koj yuav tsis ua khub siab - raug, 0.2% voltage transducer zoo li peb HBV412 series nrog qis- qib fais fab mov, xaiv lub lim EMI yuav tsum muaj tib yam kev ua haujlwm nruj. Nws tsis yog hais txog kev xeem dhau; nws yog hais txog kev tiv thaiv kev ua tau zoo thiab ua kom ntseeg tau. Raws li suav tsis txheeb cov kev daws teeb meem, ntawm no yog 5-kauj ruam qhia kom txav mus dhau qhov kev kwv yees.
Kauj Ruam 1: Txheeb xyuas lub suab nrov - Paub koj tus yeeb ncuab (hom hom sib txawv thiab hom sib txawv)
Qhov no yog lub hauv paus. Koj yuav tsum txheeb xyuas lub suab nrov uas koj tab tom sib ntaus.
Hom suab nrov:Cov cim tsis xav tau uas tshwm sim nyob rau theem ntawm ob txoj kab hluav taws xob (L / N) txheeb ze rau hauv av. Nws feem ntau siab - zaus thiab radiates yooj yim. Xav txog nws li "lub suab tawm tsam lub ntiaj teb."
Differential hom suab nrov:Tsis xav tau cov cim ntawm cov kab thiab nruab nrab conductors. Xav txog nws li "lub suab nrov ntawm lub zog sine yoj nws tus kheej."
Vim li cas nws tseem ceeb:Lub tshuab lim sab hauv yog tsim los ua kom cov hom no sib txawv. Kev siv qhov tsis ncaj ncees lawm yog zoo li siv qhov qis - dhau lim thaum koj xav tau ib pab pawg - nres- nws yuav pab tau, tab sis nws yuav tsis daws qhov teeb meem tseem ceeb. Nug: Puas yog kuv lub suab nrov tuaj yeem los ntawm lwm qhov chaw (CM) lossis tsim los ntawm kuv tus kheej hloov hluav taws xob (DM)?
Kauj Ruam 2: Txhais cov ntaub thaiv npog - Nkag siab txog qhov poob qhov nkhaus
Qhov no yog koj lub lim qhov kev ua tau zoo spec daim ntawv. Daim Insertion Loss graph qhia ntau npaum li cas cov lim attenuates suab nrov thoob plaws zaus. Tsis txhob saib ib tus lej ntawm 10MHz xwb.
Tus Engineer's Deep Dive:Tshawb xyuas qhov nkhaus tiv thaiv koj lub suab nrov zaus. Puas yog lub suab nrov uas koj tau txheeb xyuas hauv Kauj Ruam 1 ntawm 500kHz? 5 MHz? 30 MHz? Xyuas kom lub lim muab muaj zog attenuationntawm qhov tshwj xeeb ntawd. Nco ntsoov, tus transducer qhov "qhov tseeb" spec (xws li 0.2%) yog cov lus cog tseg ntawm kev ua tau zoo thoob plaws nws ntau yam; lub lim qhov ntxig qhov poob nkhaus yog tib yam. Nws yuav tsum ua qhov twg nws suav.
Kauj Ruam 3: Sib phim lub Foundation - Tam sim no, Voltage, & Kev Ntsuas Kev Nyab Xeeb
Qhov no zoo li yooj yim tab sis yog qhov tsis ua tiav classic.
Kev ntsuas tam sim no:Nws yuav tsum tuav koj cov khoom sivtxuas ntxiv,RMS tam sim no nyob rau hauv tag nrho load, ntxiv rau qhov kev nyab xeeb. Cov lim dej tsis zoo yuav dhau los ua kom sov, degrade, thiab ua tsis tiav.
Kev ntsuas hluav taws xob:Yuav tsum tshaj koj AC kab voltage. Xav txog cov surges thiab cov kab tsis ruaj khov.
Daim ntawv pov thawj kev nyab xeeb (UL, CE, VDE, thiab lwm yam):Cov no tsis yog -negotiable. Lawv validate tus tsim rau kev ruaj ntseg cais thiab kev tsim kho-zoo ib yam li cov2500VDC, 1min rwb thaiv tsev voltagentsuam xyuas ntawm peb cov transducers, uas guarantees kev sib cais kev ncaj ncees. Nov yog koj lub hauv paus rau kev txo qis kev pheej hmoo.
Kauj Ruam 4: Pom qhov Ib puag ncig - Feem ntau -Cov Ntsiab Lus Tsis Nco Qab
Lub lim tsis tau teeb tsa hauv chav kuaj.
Kub:Nws puas yuav zaum ntawm ib sab ntawm lub tshuab hluav taws xob kub lossis hauv ib qho chaw tsis muaj cua sov sab nraum zoov? Cov khoom ua haujlwm hloov nrog qhov kub thiab txias. Peb cov transducers hais txog "tsawg drifting los ntawm qhov kub thiab txias" rau ib qho laj thawj -kev ruaj ntseg tseem ceeb. Xyuas kom koj lub lim qhov ntsuas qhov ntsuas kub npog koj qhov xwm txheej phem tshaj plaws -.
Kev txwv lub cev:Din-rail mount? Vaj huam sib luag mount? Dab tsi yog qhov sib txawv thiab qhov ntev? Lub lim zoo meej tsis muaj txiaj ntsig yog tias nws tsis haum.
Kauj Ruam 5: Npaj rau Lub Ntiaj Teb Tiag - Los Tam Sim No & Inrush
Ob qhov kev kuaj zaum kawg kom tsis txhob muaj teeb meem tshiab:
Leakage Tam sim no:Cov ntxaij lim dej muaj cov capacitors rau hauv av, uas ua rau muaj qhov xau me me tam sim no. Hauv cov khoom siv kho mob (BF / CF hom) lossis kev teeb tsa rhiab, qhov tam sim no yuav tsum qis heev. Tshaj qhov txwv tuaj yeem mus ncig RCDs lossis tsim kev nyab xeeb.
Inrush tam sim no tuav:Yog tias koj lub cuab yeej muaj qhov kub siab tam sim no (xws li lub cev muaj zog tsav), xyuas kom cov lim cov inductors tuaj yeem tswj tau qhov sib nqus surge yam tsis muaj saturating.
Kev Sib Txuas Koj Tej zaum Tsis Tau
Kev xaiv lub lim dej EMI qhia tib lub tswv yim xws li xaiv qhov ntsuas ntsuas ntsuas: ob qho tib si yog qhov cuam tshuam tseem ceeb ntawm koj cov khoom siv hluav taws xob tswj hwm thiab lub ntiaj teb hnyav, nrov nrov. Ib tug kom lub teeb liab kojntsuasyog dawb huv thiab raug; lwm tus ua kom lub zog kojpubyog huv si thiab ruaj khov. Kev cuam tshuam ntawm ob qho tib si, thiab koj qhov kev ntseeg siab thiab qhov tseeb yog qhov txaus ntshai.
Ntawm Shinhom, peb siv txoj cai no ntawmengineered kev ncaj nceeshla peb cov kab ke. Ib yam li peb cov hluav taws xob hloov hluav taws xob tau tsim rau qhov tseeb, kev sib cais, thiab kev ua haujlwm ntev hauv qhov xav tau ib puag ncig, peb txoj hauv kev rau EMI lim cov kev daws teeb meem tseem ceeb ib yam: kev ua tau zoo, kev tsim kho, thiab daim ntawv thov - tsom rau kev tsim.
Tawm tsam nrog cov ntaub ntawv tsis sib xws lossis tsis tau piav qhia? Tus neeg ua txhaum tej zaum yuav nce toj.Cia peb tham txog koj qhov kev sib tw suab nrov thiab kev teeb tsa lub zog.Peb tuaj yeem pab koj taug qab tsib kauj ruam no txhawm rau nrhiav tsis yog lub lim dej nkaus xwb, tab sis kev daws teeb meem uas sib txuas nrog koj lub siab - kev ua tau zoo.
Hu rau peb pab pawg txhawb nqa engineering ntawmsales@shinhom.comlos tham txog koj daim ntawv thov.