Hauv kev lag luam Automation thiab Kev Tswj Hluav Taws Xob Nrog rau cov muaj koob npe ntawm VFD daim ntawv thov, cov hom thiab specifications ntawm VFD tsav Cable kuj yog nce. Cov thaiv thiab cov xaim tsis sib haum yog ob hom sib txawv. Lawv txhua tus muaj lawv tus kheej cov txiaj ntsig thiab qhov tsis zoo thiab haum rau cov ntawv thov sib txawv. Yog li, nkag siab qhov sib txawv ntawm cov ntaub thaiv npog thiab tsis sib xws vfd clesles yog qhov tseem ceeb los kho cov cable tsim nyog xaiv cov cable tsim nyog.
1. Cov khoom lag luam yooj yim ntawm VFD cable
VFD tsav cable feem ntau muaj cov ntu hauv qab no:
Cwj Pwm:Cov neeg saib xyuas feem ntau yog ua los ntawm tooj liab lossis txhuas kom muab cov kev sib txuas lus uas yuav tsum muaj rau cov fais fab kis.
Rwb thaiv tsev:Cov rwb thaiv tsev txheej yog siv los cais tawm ntawm cov neeg saib xyuas sab nraud, tiv thaiv cov cable los ntawm kev ua haujlwm luv luv lossis hluav taws xob.
Shielding:Daim thaiv npog txheej yog nyob sab nraum lub rwb thaiv tsev txheej thiab yog siv los tiv thaiv kev cuam tshuam hluav taws xob hluav taws xob (EMI) los ntawm kev nkag mus los ntawm kev cuam tshuam nrog lwm cov khoom siv.
Tsho:Lub tsho sab nraud yog cov txheej txheej sab nraud ntawm cov cable, tsuas yog siv los tiv thaiv cov qauv sab hauv los ntawm kev puas tsuaj lossis ib puag ncig ntawm cov khoom lag luam thiab ib puag ncig.
2. Nta ntawm Shielded VFD cable
Qhov loj tshaj plaws ntawm daim thaiv vfd vfd cable yog tias nws muaj cov txheej txheem tiv thaiv tshwj xeeb txheej, feem ntau yog tsim ntawm hlau ntawv los yog ob tog braided tooj liab hlau. Lub luag haujlwm tseem ceeb ntawm daim thaiv npog txheej yog los tiv thaiv cov paib hluav taws xob sab nraud, thiab nws tuaj yeem ua tau zoo rau sab hauv cable thiab tiv thaiv nws los ntawm radiating rau sab nraud ib puag ncig.
1. Kev cuam tshuam hluav taws xob hauv hluav taws xob (EMI) tiv thaiv
Shielded VFD cable sib cais sab nraud sab nraud hluav taws xob hauv hluav taws xob hauv hluav taws xob (EMI) los ntawm daim thaiv npog rau kev cuam tshuam nrog kev sib cuam tshuam hluav taws xob hauv cable kis. Tshwj xeeb tshaj yog nyob rau hauv cov hwj huam kis thiab muaj cov khoom siv tshuab hluav taws xob uas cuam tshuam rau cov teeb meem hauv VFD, tab sis kuj yuav ua rau tsis muaj peev xwm ntawm cov khoom siv hluav taws xob.
Daim thaiv npog txheej yuav ua tau zoo rau kev cuam tshuam zoo tshaj plaws, txo cov kev sib cuam tshuam ntawm cov hauv paus, thiab txhim kho kev ruaj ntseg thiab kev ntseeg tau ntawm cov cuab yeej.
2. Cov teeb liab kev ncaj ncees
Lub teeb liab nruab nrab ntawm inverter thiab lub cev muaj zog yog tswj hwm los ntawm kev hloov pauv ntau zaus hloov teeb liab. Yog hais tias lub cable tsis muaj daim thaiv npog txheej, cov ntsiab lus tseem ceeb, thiab cov cim kev sib txuas lus ze thiab tiv thaiv cov teeb liab kev ua kom ncaj ncees lossis ua kom muaj kev sib txuas lus thaum kis mob.
3. Ntev cable tso tseg
Nyob rau hauv kev pw ntau dua nyob deb, daim ntaub thaiv npog tau zoo rau kev cuam tshuam nrog hluav taws xob hluav taws xob, yog li ntawd kev ua tau hluav taws xob ntawm lub cable tuaj yeem tswj tau ruaj khov zoo. Tshwj xeeb tshaj yog nyob rau hauv cov khoom siv muaj ntau yam khoom siv thiab cov khoom siv hluav taws xob, cov ntaub thaiv npog tuaj yeem cuam tshuam tau tias kev ntsuas kev ntsuas tsis cuam tshuam nrog, tsis txhob muaj teeb liab poob lossis cov teeb meem kis.
4. Kev tawm tsam suab nrov sab nraud
Electromagnetic kev daws teeb meem muaj ntau yam nyob rau hauv ib puag ncig xws li cov khoom siv fais fab, automation tswj cov tshuab, thiab kev cob qhia kev ua haujlwm. Yog tias cov ntawv sau tsis tau siv, nws yuav ua rau kev sib cuam tshuam ntawm cov khoom siv thiab cuam tshuam kev ua haujlwm. Cov thaiv cov xaim hluav taws xob tuaj yeem txo qis kev cuam tshuam ntawm cov suab nrov sab nraud thiab ua kom muaj kev ua haujlwm ib txwm ua.
5. Lub luag haujlwm ntawm av xaim thiab grounding
Cov thaiv cov txheej txheej ntawm daim thaiv cov tswv yim VFD cov xaim feem ntau yog ua kom muaj kev nyab xeeb rau kev nyab xeeb "xau" channel. Thaum muaj stray tam sim no nyob rau hauv lub cable, grounded daim thaiv npog txheej yuav tuaj yeem coj cov dej ntws mus rau hauv av kom tsis txhob muaj kev phom sij ntawm cov txheej txheem tam sim no.
3. Cov yam ntxwv ntawm cov kab lus tsis huv VFD
Kev tiv thaiv vfd tsis tseem ceeb tsis muaj daim thaiv npog txheej, cia siab rau lawv cov qauv kev ua tau zoo thiab cov qauv tsim qauv los tiv thaiv cov cawv hluav taws xob. Cov hluav taws xob tsis sib haum feem ntau yog siv nyob rau hauv ib puag ncig uas muaj tsawg dua hluav taws xob cuam tshuam lossis hauv cable nteg dua qhov kev ncua deb.
1. Tus nqi qis dua
Vim tias cov kab ke tsis muaj cov txheej txheem tiv thaiv ntxiv, lawv cov nqi tsim yog qis dua thiab lawv pheej yig dua li cov ntaub thaiv npog. Qhov no ua rau muaj cov phiaj xwm tsis tsim nyog rau qee qhov kev siv tus nqi lossis cov khoom sib kis luv luv luv luv.
2. Nyhav thiab yooj
Cov qoob loo tsis sib haum feem ntau yog cov teeb sib zog ntau dua thiab hloov tau vim tias lawv tsis muaj kev tiv thaiv txheej ntxiv. Qhov no ua rau lawv yooj yim dua los khoov thaum teeb tsa thiab yog tshwj xeeb yog tsim nyog rau cov ntawv thov uas xav tau qhov chaw tso quav thiab cov chaw sib xyaw.
3. Haum rau kev cuam tshuam hluav taws xob tsawg
Cov qoob loo tsis sib haum yog haum rau ib puag ncig uas muaj tsawg dua hluav taws xob cuam tshuam (EMI). Yog hais tias lub cable yog nteg deb ntawm qhov chaw ntawm electromagnetic cuam tshuam lossis xa cov hluav taws xob muaj peev xwm ua tau raws li kev yuav tsum tsis muaj nqi.
4. Kev luv nqi pw
Vim tias qhov tsis muaj daim thaiv npog txheej, lub teeb liab ntawm cov pob hluav taws xob tsis yooj yim los ntawm kev tso quav hluav taws xob sab nraud, tshwj xeeb tshaj yog los ntawm kev sib txuas ntev dua tuaj yeem muaj kev sib txuas. Yog li ntawd, cov cableed cables yog qhov tsim nyog rau kev muab tso cai cable kev tso cai thiab kev cuam tshuam tsawg.
5. Tsis muaj kev tiv thaiv sab nraud
Tsis zoo li cov ntaub thaiv npog npog, cov xaim tsis sib xws tau tsis muaj kev tiv thaiv sab nraud muaj suab nrov. Hauv ib puag ncig nrog kev cuam tshuam hluav taws xob muaj zog hauv hluav taws xob muaj zog, cov khoom siv tsis tau zoo yuav cuam tshuam, ua rau hluav taws xob cov khoom siv rau kev ua haujlwm tsis zoo lossis kev tsis sib luag.
4. Cov sib txawv tseem ceeb ntawm cov ntaub thaiv thiab cov kab lus tsis sib haum
1. Cov qauv sib txawv
Shielded Cable:Muaj ib txheej ntawm hlau ntawv los yog braided tooj liab hlau sab nraum cov txheej txheej ntawm cable los tiv thaiv txheej hluav taws xob kom tiv thaiv hluav taws xob.
Unshielded cable:Tsis muaj daim thaiv npog txheej, tsuas yog cov rwb thaiv tsev txheej thiab cov riam sab nraud.
2. Electromagnetic cuam tshuam (EMI)
Shielded Cable: Ua tau zoo tiv thaiv sab nraud hluav taws xob siv hluav taws xob, kom tsis txhob cuam tshuam nrog cov cim sab hauv hauv cable, thiab txo kev cuam tshuam nrog cov cuab yeej siv ib puag ncig.
Cable tsis sib haum cable: Tsis muaj kev tiv thaiv tawm tsam cov teeb meem hluav taws xob sab nraud hluav taws xob, yuav cuam tshuam nrog sab nraud, thiab nws tseem tuaj yeem cuam tshuam rau cov khoom siv ib puag ncig.
3. Siv tau ib puag ncig
Cov thaiv npog Cable: Haum rau ib puag ncig nrog kev cuam tshuam hluav taws xob muaj kev lag luam muaj kev lag luam muaj zog, ntev-deb cable pw, thiab ib puag ncig cov khoom hluav taws xob loj.
Kev tsis sib haum cable: Haum rau ib puag ncig uas muaj tsawg dua hluav taws xob kev cuam tshuam, xws li luv luv-deb tso rau hauv tsev lossis cov chaw lag luam me.
4. Nqi thiab nyhav
Shielded Cable: Tus nqi yog siab dua thiab qhov hnyav yog qhov hnyav dua, uas tsis haum rau cov ntaub ntawv nrog kev xav tau tsawg lossis nruj yuav tsum tau ua rau qhov hnyav.
Kev tsis sib haum cable: Tus nqi qis, lub teeb yuag, haum rau qee zaus nrog kev cuam tshuam nruj thiab txo qis kev cuam tshuam hluav taws xob.
5. Kev teeb tsa yuav tsum tau ua
Shielded cable: Yuav tsum muaj qhov ua tau zoo los xyuas kom paub tseeb tias cov nyhom cov nyhuv.
Kev tsis sib haum cable: Qhov yooj yim rau nruab, tab sis rau ib puag ncig nrog kev cuam tshuam hluav taws xob muaj zog, yuav tau cov kev tiv thaiv kev tiv thaiv ntau ntxiv.
5
Kev cuam tshuam ib puag ncig hluav taws xob hauv hluav taws xob hauv hluav taws xob Txwv tsis pub, unshielded cable tuaj yeem ua tau raws li qhov xav tau.
Cable txig nrug: Rau kev sib kis mus ntev, thaiv kev cable tuaj yeem tiv thaiv zoo