Qhov txawv ntawm qhov sib txawv ntawm qhov pib thiab pib mos

Variable zaus tsav (VFD) pibthiabpib muag muagyog ob qho tib si pib txoj hauv kev rau lub tshuab hluav taws xob, tsim los daws qhov teeb meem ntawm kev cuam tshuam tam sim no ntau dhau ntawm daim phiaj hluav taws xob thiab cov cuab yeej siv tshuab thaum siab - fais fab motors pib ncaj qha. Qhov sib txawv tseem ceeb yog tias VFD pib tso cai rau kev hloov ceev, thaum pib muag tsis tau.

1. Lub hauv paus ntsiab lus sib txawv
Hloov pauv zaus pib (VFD)
Lub hauv paus ntsiab lus: Ua tiav qhov torque tsis tu ncua lossis kev tswj hwm lub zog tsis tu ncua los ntawm kev hloov pauv cov khoom siv hluav taws xob thiab qhov hluav taws xob mus rau lub cev muaj zog stator.
Qhov tshwm sim: Precisely tswj lub cev muaj zog ceev los ntawm 0Hz mus rau lub rated zaus, ua tiav qhov tseeb "stepless ceev tswj."
Soft Start (Soft Start)
Lub hauv paus ntsiab lus: Kev hloov pauv tsuas yog lub zog muab hluav taws xob rau lub cev muaj zog stator los ntawm kev sib txawv ntawm lub kaum sab xis ntawm silicon tswj thyristor.
Qhov tshwm sim: Lub cev muaj zog hloov pauv nrog qhov voltage, tab sis kev tswj ceev ceev tsis tuaj yeem ua tau; nws tsuas mitigates qhov pib ceev nce.

2. Kev tswj ceev sib txawv muaj peev xwm

Hloov pauv zaus pib (VFD):Tso cai rau tag nrho - kev tswj ceev ceev. Nws tsis yog tsuas yog rau kev pib, tab sis tseem ceeb tshaj, rau kev tswj tsis tau nrawm thaum lub sijhawm ua haujlwm. Lub cev muaj zog ua haujlwm ceev tuaj yeem hloov kho txhua lub sijhawm raws li cov txheej txheem yuav tsum tau ua kom ruaj khov ntev - lub sijhawm ua haujlwm.

Soft Starter:Tswj tsis tau ceev. Thaum pib ua tiav, lub cev muaj zog ua haujlwm ntawm nws qhov ntsuas nrawm thiab lub zog zaus ntawm lub tshuab hluav taws xob bypass, thiab lub tshuab hluav taws xob tsis ua haujlwm lawm.

3. Cov yam ntxwv sib txawv

Variable Frequency Starter:Ib txwm outputs ib tug ntshiab sine yoj fais fab mov nrog txawv voltage thiab zaus.

Soft Starter:Tam sim no: Cov zis voltage thiab zaus hloov thaum pib; voltage nce thaum zaus nyob tas li. Ib zaug hauv kev ua haujlwm bypass, cov zis yog nyob ntawm lub zog zaus.

4. Muaj ntau hom kev thauj khoom sib txawv

Variable Frequency Starter:Haum rau cov ntawv thov uas xav tau kev tswj ceev lossis hnyav -load pib.

Piv txwv li: kiv cua, twj tso kua mis, conveyor siv, extruders, elevators, thiab lifting machinery.

Soft Starter:Tsim nyog rau daim ntawv thov uas tsis tas yuav tsum tau tswj ceev tab sis yuav tsum tau txo cov neeg kho tshuab poob siab los yog txwv daim phiaj voltage poob.

Loj loj hauv nruab nrab cua txias twj tso kua mis, kiv cua loj, crushers, thiab siv conveyors.

5. Qhov sib txawv ntawm cov qauv thiab tus nqi

Hloov pauv zaus pib (VFD):Tus nqi siab dua, feem ntau yog 2-3 zaug lossis ntau tshaj qhov pib muag muag. Ib txwm muaj hluav taws xob hluav taws xob poob ntawm kwv yees li 3-5% thaum ua haujlwm.

Soft Starter:Tus nqi qis dua thiab cov qauv yooj yim dua. Ua haujlwm ntawm kev hla dhau, ua rau tsis muaj kev poob ntxiv.

6. Bypass Contactor

Variable Frequency Starter:Feem ntau tsis xav tau ib tug bypass contactor. Tam sim no ib txwm dhau los ntawm VFD module.

Soft Starter:Feem ntau yuav tsum tau ib tug bypass contactor. Tom qab pib, tam sim no ncaj qha nkag mus rau lub cev muaj zog los ntawm tus contactor; cov thyristors tsis ua haujlwm rau cov cua sov dissipation thiab txuag hluav taws xob.