Zhejiang Hertz Electric Co., Ltd

Zhejiang Hertz Electric Co., Ltd., nrhiav tau nyob rau hauv 2014, yog high-tech enterprise specializing nyob rau hauv txoj kev loj hlob, tsim, muag, thiab tom qab-muag kev pab cuam, pab nruab nrab thiab high-end khoom manufacturers thiab industrial automation system integrators. Kev cia siab rau cov khoom siv ua haujlwm zoo thiab cov txheej txheem kev sim nruj, peb yuav muab cov neeg siv khoom nrog cov khoom xws li cov khoom siv hluav taws xob tsawg thiab nruab nrab voltage inverters, soft starters thiab servo tswj systems thiab cov kev daws teeb meem hauv kev lag luam. Lub tuam txhab txhawb nqa lub tswv yim ntawm "muab cov neeg siv khoom zoo tshaj plaws thiab cov kev pabcuam" los pab txhua tus neeg siv khoom. Tam sim no, nws tsuas yog siv rau metallurgy, tshuaj lom neeg kev lag luam, ntawv ua, tshuab thiab lwm yam lag luam.

Vim Li Cas Xaiv Peb

Pab neeg tshaj lij

Peb pab pawg kws tshaj lij muaj ntau xyoo dhau los hauv kev lag luam, thiab peb muab peb cov neeg siv khoom nrog kev txhawb nqa tsim nyog thiab cov lus qhia.

Cov khoom zoo

Peb cov khoom yog tsim los rau cov qauv siab tshaj plaws siv cov ntaub ntawv zoo tshaj plaws xwb. Peb xyuas kom meej tias peb cov khoom muaj kev ntseeg siab, muaj kev nyab xeeb thiab kav ntev.

24H online kev pabcuam

400 tus xov tooj kub kub qhib 24 teev nyob rau ib hnub. Fax, email, QQ, thiab xov tooj yog txhua yam thiab ntau txoj kev los txais cov neeg siv khoom teeb meem. Technical cov neeg ua haujlwm yog 24 teev hauv ib hnub los teb cov teeb meem ntawm cov neeg siv khoom.

Kev daws teeb meem ib zaug

Muab kev txhawb nqa hauv tag nrho cov txheej txheem ntawm kev tshuaj xyuas, kev teeb tsa, kev ua haujlwm, kev lees paub, kev lees paub kev ua haujlwm, kev ua haujlwm, kev saib xyuas thiab lwm yam kev coj ua kev qhia thiab kev cob qhia txog kev cog lus cov khoom raws sijhawm.

VFD rau Motors

Peb Lub Variable Frequency Drive (VFD), tsim los rau kev tswj xyuas lub cev muaj zog, yog ntau yam kev daws teeb meem txhawm rau txhim kho kev siv hluav taws xob thiab kev ua haujlwm.

Inverter Tsav

Lub inverter tsav ua kom muaj kev tswj xyuas meej ntawm lub cev muaj zog, ua rau txo qis kev siv hluav taws xob thiab txo nqi kev khiav hauj lwm, ua rau nws xaiv ib puag ncig zoo rau kev lag luam.

Zaus Tsav Rau Peb Theem Tsav

Cov khoom siv zoo thiab cov tshuab ua ntej. Muaj nuj nqi muaj zog, tsis tu ncua sib txawv ntawm kev sib kis. Cov tsos mob tsis tu ncua, me me thiab zoo nkauj. Kev ua haujlwm yooj yim thiab intuitive digital zaub.

Ib Theem VFD Drive

Hom VFD no feem ntau siv nyob rau hauv thaj chaw thiab chaw lag luam me, vim nws haum rau cov motors uas ua haujlwm ntawm 120V lub zog thiab tsis tas yuav muaj cov khoom siv hluav taws xob siab.

1.5KW TSI

Peb muab txhua ntu 220V thiab peb ntu 220V tawm tswv yim. Thaum siv rau ib theem, txhua ntu tuaj yeem siv los ua ib qho khoom seem.

2.2KW TSI

Kev siv cov cuab yeej hloov pauv zaus, rub lub tshuab cua txias ntawm lub tub yees twj tso kua mis, twj tso kua mis dej txias, kiv cua yog lub zog txuag hluav taws xob zoo heev.

3.7KW TSI

3.7KW Variable zaus tsav. Qhov no yog 24V 150W brushless DC iav lub cev muaj zog nrog flange ntawm 90x90mm. Lub built-in 10: 1 keyway ncej yog lub kaum sab xis gearbox coj ceev thiab torque mus rau 300.

5.5KW TSI

5.5KW Variable zaus tsav. Qhov no yog 24V 150W brushless DC iav Tsav nrog flange ntawm 90x90mm. Lub built-in 5: 1 spur gearbox nqa ceev thiab torque rau 600rpm thiab 1.95Nm (276.14.

VFD Control Tsav

Frequency converter yog lub tshuab AC lub zog uas hloov hluav taws xob muab rau ntau zaus. Thaum xyoo 1980s, Tuam Tshoj pib siv lub tshuab hloov pauv zaus.

Dab tsi yog VFD Rau Motors

Ib qho kev sib txawv zaus tsav (VFD) rau cov motors yog ib hom kev tswj lub cev muaj zog uas tsav lub tshuab hluav taws xob los ntawm kev sib txawv ntawm qhov zaus thiab qhov hluav taws xob ntawm nws lub hwj chim mov. VFD kuj muaj peev xwm tswj tau qhov nce thiab nqis ntawm lub cev muaj zog thaum pib lossis nres, feem. Raws li daim ntawv thov lub cev muaj zog qhov xav tau hloov pauv, VFD tuaj yeem yooj yim tig los yog nqis lub cev muaj zog kom tau raws li qhov yuav tsum tau ua.

Cov txiaj ntsig ntawm VFD Rau Cov Tsav Tsheb

Txo cov kab hluav taws xob cuam tshuam
Pib lub AC lub cev muaj zog hla txoj kab, thiab qhov kev thov tom ntej rau 300-600 % lub cev muaj zog puv-load tam sim no, tso dej ntws loj rau ntawm lub zog faib hluav taws xob txuas nrog lub cev muaj zog. Thaum cov khoom siv hluav taws xob poob qis, nyob ntawm qhov loj ntawm lub cev muaj zog thiab lub peev xwm ntawm cov khoom xa tawm, qhov hluav taws xob sags tuaj yeem ua rau cov khoom siv rhiab txuas rau tib qhov kev faib tawm mus rau offline vim qhov tsis tshua muaj hluav taws xob. Siv VFD tshem tawm qhov voltage sag, txij li thaum lub cev muaj zog pib ntawm xoom voltage thiab ramped.

Lower Power Demand on Start
Yog hais tias lub hwj chim yog proportional rau tam sim no-lub sij hawm-voltage, ces lub hwj chim xav tau los pib lub AC lub cev muaj zog hla txoj kab yog ho siab dua nrog VFD. Qhov no yuav muaj tseeb tsuas yog thaum pib. Thaum cov neeg siv khoom lag luam pib lawv lub cev muaj zog thaum lub sijhawm siv hluav taws xob siab tshaj plaws, nws tsis yog qhov tsis yooj yim rau cov neeg siv khoom raug stung nrog cov nqi hluav taws xob thaum lub sij hawm ncov. Cov kev xav tau no yuav tsis yog qhov teeb meem nrog VFD'S.

Adjustable khiav ceev
Tsis zoo li cov tsoos nres-thiab-mus lub cev muaj zog, kev siv VFD ua rau kev ua kom zoo dua qub, los ntawm kev hloov pauv hauv cov txheej txheem. Qhov no tso cai rau pib ntawm qhov txo qis, thiab tso cai rau kev hloov kho tej thaj chaw deb ntawm kev ceev los ntawm programmable maub los lossis tus tswj txheej txheem. Tswj, nyob rau hauv ib qho kev txiav txim siab, yog ib txwm ib tug loj nyiaj ntxiv rau ntau lawm.

Adjustable Torque Limit
Kev siv VFD tuaj yeem tiv thaiv cov tshuab los ntawm kev puas tsuaj thiab tiv thaiv cov txheej txheem lossis cov khoom lag luam (vim tias tus nqi ntawm lub zog siv tau tuaj yeem tswj tau raug). Yog tias tsuas yog AC lub cev muaj zog txuas nrog, lub cev muaj zog yuav txuas ntxiv mus kom txog thaum lub cev muaj zog lub tshuab hluav taws xob qhib (vim yog qhov tam sim no ntau dhau los ntawm qhov hnyav). Lub VFD, nyob rau hauv lem, tuaj yeem teem caij kom txwv tus nqi ntawm lub zog (AMP / CURRENT), yog li lub AC lub cev muaj zog tsis dhau qhov kev txwv no.

VFD Rau Cov Tsav Tsheb Ua Haujlwm Li Cas?

VFD's yog siv los tswj ac motors. Lub VFD qhov input voltage (ac fais fab mov) yog txo los ntawm VFD transformer, rectified thiab lim rau hauv dc voltage. Lub VFD ces hloov lub dc voltage mus rau adjustable zaus ac tso zis voltage uas phim qhov ceev ntawm lub cev muaj zog yuav tsum tau tswj. Kev tswj ceev ceev yog ua tiav los ntawm kev sib txawv ntawm VFD tso zis zaus.
VFDs tuaj yeem tsim tau txog li 1000 pulses ib kiv puag ncig ntawm ac lub cev muaj zog lub rotor, thiab VFD's muab ntau smoother ceev kev cai piv rau v / f tswj qhov twg av / f converter yog siv los tswj qhov voltage mus rau hauv lub ac lub cev muaj zog kom nws torque ntais ntawv load kev xav tau. VFD's kuj tso cai rau v / f converter yuav tsum tau bypassed kom nws muaj peev xwm tiv thaiv motors los ntawm overload tej yam kev mob, v / f converters tsis muab lub peev xwm no.

Hom Motors twg tuaj yeem siv nrog VFD Rau Cov Tsav Tsheb?

Dc lub cev muaj zog:Dc motors are still in production although the number of active manufacturers has decreased considerably, specifically those that are still manufacturing large dc motors (>1 MW).

Ac asynchronous squirrel tawb lub cev muaj zog:Hom lub cev muaj zog no yog lub cev muaj zog tshaj plaws hauv cov txheej txheem kev lag luam nrog cov tsav tsheb sib txawv.

Ac asynchronous qhov txhab rotor lub cev muaj zog:Hom lub cev muaj zog no yog ib txwm siv nyob rau hauv kev sib txawv zaus tsav thaum lub load xav tau lub siab pib torque thiab lub zog ntawm lub hwj huam mov network tsis txaus kom tso cai rau Direct On-Line (DOL) pib. Kev ua haujlwm nrawm nrawm yog tau los ntawm kev sib txawv ntawm qhov ua haujlwm zoo hauv lub rotor circuit.

Ac synchronous lub cev muaj zog nrog cov hlau nplaum ruaj khov excitation:Hom lub cev muaj zog no yog tsim tshwj xeeb rau kev ua haujlwm nrog lub zog sib txawv. Synchronous motors yog siv feem ntau nyob rau hauv high-power ranges kom txo tau cov nqi los ntawm kev txo qhov tam sim no ntsuam xyuas ntawm qhov sib txawv zaus tsav thiab vim tsis muaj squirrel tawb induction motors.

Thaum twg koj yuav tsum nruab ib VFD rau Motors?

Koj yuav tsum xav txog kev txhim kho VFD's thaum koj xav tau tshaj tawm ntawm koj lub cev muaj zog. Piv txwv li, VFD's feem ntau siv rau cov laus ac motors vim tias lawv tau txais kev ua tau zoo ntawm VFD ntau dua li lawv tau ua nrog cov khoom qub. VFDs kuj tau teeb tsa thaum nws tsim nyog los ua kom tiav cov txheej txheem ac lossis txhim kho nws txoj cai ceev.

Hauv kev lag luam VFD's raug ntsia rau ntau yam laj thawj. VFDs tso cai rau cov neeg siv xaiv qhov ceev uas lawv xav kom lawv lub cev muaj zog khiav ntawm, thiab VFD kuj tso cai rau cov neeg tsim khoom los txhim kho lub zog vim tias VFD tuaj yeem phim lub cev muaj zog nrog qhov zoo tshaj plaws hluav taws xob zaus.

Nrog rau tag nrho cov no, VFD's tswj tib lub ac zaus raws li cov khoom siv hluav taws xob, uas txhais tau tias nws tsis tas yuav hloov los ntawm 50 lossis 60 Hertz zaus mus rau VFD cov zis zaus los ntawm inverter. Yog li, VFD txo qis kev siv hluav taws xob thiab pab cov txheej txheem tsim khoom txhim kho lub zog ua haujlwm.

Qee tus VFD tseem tuaj yeem cais cov hluav taws xob sib txuas yog li yog tias ib lub network muaj teeb meem, VFD tuaj yeem txiav nws ntawm lwm cov tes hauj lwm thiab tiv thaiv lawv. Los ntawm kev ua cov tuam txhab VFD no kuj pab cov tuam txhab ua kom muaj kev nyab xeeb.

Tej yam yuav tsum tau xav txog thaum xaiv VFD Rau Cov Tsav Tsheb

Installation Ib puag ncig
Ib qho ntawm thawj yam uas yuav tsum xav txog yog qhov chaw ua haujlwm ib puag ncig uas koj yuav nruab lub tsav. Yog tias koj xaiv qhov tsav tsis raug rau koj ib puag ncig, koj yuav tsis tau txais txiaj ntsig ntau tshaj plaws. Koj yuav tsum xav txog seb koj npaj yuav siv nws sab hauv lossis sab nraud. Rau ib puag ncig sab hauv tsev, xav txog cov av noo, qhov kub thiab txias. Yog tias koj tab tom ua haujlwm nrog cov tshuaj hnyav lossis nyob rau hauv qhov kub siab, koj yuav xav saib VFD haum rau cov cheeb tsam no. Rau sab nraum zoov VFD, koj yuav xav xav txog dab tsi lub ntsiab tsav yuav raug rau thiab seb nws yuav nyob rau hauv lub hnub ncaj qha.

Motor Rated Tam sim no, Voltage thiab zaus
Nws tsis txaus kom phim qhov sib txawv zaus tsav mus rau lub cev muaj zog lub zog ntsuas. Koj yuav tsum tau xav txog lub cev muaj zog specs thiab ntsuam xyuas, tshwj xeeb tshaj yog tam sim no, voltage thiab zaus. Cov yam ntxwv no pab txiav txim seb tus tsav puas tuaj yeem ua haujlwm siab dua thiab qis dua. Los ntawm kev xyuas kom meej tias koj muaj VFD zoo sib xws rau cov motors, koj yuav muaj peev xwm khiav koj cov motors ntawm qhov ua tau zoo. Txhawm rau kom muaj kev ua tau zoo, koj yuav tsum xyuas kom meej tias VFD cov qhab nia phim koj lub peev xwm muab hluav taws xob.

Torque Requirements
Cov motors sib txawv yuav muaj qhov xav tau torque ntxiv. Qee tus muaj ntau yam kev xav tau raws li seb lawv tab tom pib, qeeb lossis khiav ntawm lub peev xwm siab tshaj. Koj yuav tsum nrhiav VFD uas muab lub zog tsawg kawg ntawm lub ncov khiav ceev ntawm lub cev muaj zog.

Hom Tsav
Tsis yog txhua lub cev muaj zog ua haujlwm zoo nrog tag nrho VFD, thiab qee lub cav yuav tsis xav tau ib qho. Feem ntau cov induction motors yuav ua haujlwm nrog VFD. VFDs yog qhov yuav tsum tau muaj cov hlau nplaum ruaj khov synchronous motors (PMSMs), vim tias cov motors tsis tuaj yeem pib ntawm nws tus kheej. Qee VFDs tau tsim nrog PMSMs hauv siab thiab muaj cov yam ntxwv tshwj xeeb los txhim kho lawv txoj haujlwm.

Lub luag hauj lwm Cycle
Xav txog lub luag haujlwm lub voj voog ntawm koj lub cev muaj zog. Nws puas muaj ib qho kev khiav ceev, los yog nws txawv ntawm qhov qis thiab hnyav-duty cycles. Qee qhov VFDs tsis muaj peev xwm tswj xyuas cov khoom hnyav rau lub sijhawm ntev. Lwm tus tsis ua haujlwm zoo nrog lub teeb ua haujlwm txuas ntxiv. Qee qhov VFDs yog tsim los rau cov motors uas muaj lub sijhawm ntev dua ntawm lub teeb ua haujlwm lossis tsis ua haujlwm. Nco ntsoov xaiv qhov ntsuas hluav taws xob uas phim koj lub voj voog ua haujlwm.

Txoj Cai Ceev
Nyob ntawm koj hom lub cev muaj zog, kev tswj ceev yuav yog qhov tseem ceeb. Koj yuav tsum xav txog seb koj puas xav tau lub tsav uas tuaj yeem tswj tau qhov nrawm nrawm lossis yog tias muaj qee qhov kev hloov pauv tau tso cai. Koj tseem yuav xav txiav txim siab seb VFDs txawv li cas rau kev hloov pauv ceev. Qee qhov yog tsim los nrog kev hloov pauv hauv siab thiab tuaj yeem tswj tau ntau yam zoo.

Hom kev thov
Thaum kawg, koj yuav tsum xav txog hom kev thov. Txhua lub cev muaj zog thiab kev teeb tsa yog qhov tshwj xeeb, thiab qee qhov muaj cov cai tshwj xeeb uas VFD yuav tsum suav rau. Koj yuav tsum txiav txim siab seb hom load koj lub cev muaj zog yuav tsim. Rau cov uas nquag ua haujlwm hnyav, koj yuav tsum tau saib VFD muaj peev xwm tuav lub luag haujlwm hnyav.

Daim ntawv thov ntawm VFD rau Motors

01/

HVAC Systems
VFDs feem ntau siv nyob rau hauv HVAC systems los tswj kev ceev ntawm cov kiv cua thiab cov twj tso kua mis. Los ntawm kev tswj lub cev muaj zog ceev, VFDs tuaj yeem txhim kho lub zog siv hluav taws xob, ua rau cov nqi hluav taws xob qis dua.

02/

Kev kho dej thiab dej khib nyiab
VFDs yog siv nyob rau hauv cov dej thiab cov dej khib nyiab kho cov nroj tsuag los tswj kev ceev ntawm cov twj thiab tshuab tshuab. Los ntawm kev tswj lub cev muaj zog ceev, VFDs tuaj yeem txhim kho lub zog siv hluav taws xob thiab txo cov nqi kho.

03/

Kev tsim khoom
VFDs yog siv rau hauv kev tsim khoom los tswj kev ceev ntawm conveyor siv, mixers, thiab lwm yam khoom siv. Los ntawm kev tswj lub cev muaj zog ceev, VFDs tuaj yeem txhim kho kev tsim khoom thiab txo cov nqi kho.

04/

Ua liaj ua teb
VFDs yog siv hauv kev ua liaj ua teb los tswj kev ceev ntawm cov twj tso kua dej thiab lwm yam khoom siv. Los ntawm kev tswj lub cev muaj zog ceev, VFDs tuaj yeem ua kom zoo dua kev siv hluav taws xob thiab txo cov nqi kho.

Cheebtsam ntawm VFD Rau Cov Tsav Tsheb

Rectifier

Lub rectifier converts AC zog los ntawm daim phiaj hluav taws xob mus rau DC (direct tam sim no) lub zog. Qhov no feem ntau yog ua los ntawm diodes.

DC Bus

Lub tsheb npav DC ua raws li qhov tsis muaj, khaws cia lub zog hloov pauv DC rau siv los ntawm inverter.

Inverter

Lub inverter yog ib feem tseem ceeb uas hloov lub zog DC los ntawm lub tsheb npav DC rov qab rau hauv AC zog nrog qhov sib txawv thiab qhov voltage. Nws siv insulated gate bipolar transistors (IGBTs) los yog lwm yam fais fab hloov khoom siv los tswj cov zis.

Controller/Processor

Tus maub los lossis processor yog lub hlwb ntawm VFD. Nws saib xyuas cov khoom xa tuaj, ua cov ntaub ntawv, thiab kho cov zis zaus thiab qhov hluav taws xob raws li kev tswj hwm lub cev muaj zog.

Tus neeg teb xov tooj interface

VFDs feem ntau suav nrog kev sib txuas rau cov neeg siv los teeb tsa, saib xyuas kev ua haujlwm, thiab tswj lub tsav. Qhov no tuaj yeem yog lub keyboard, zaub, lossis ntau dua sophisticated human-machine interface (HMI).

Cov cuab yeej tawm tswv yim

Cov sensors xws li encoders lossis tachometers muab cov lus teb rau tus maub los txog qhov tseeb ceev thiab txoj haujlwm ntawm lub cev muaj zog. Cov ntaub ntawv no yog siv los kho cov zis ntawm VFD kom tswj tau qhov xav tau ceev.

Braking System

Qee qhov VFDs suav nrog lub tshuab braking los pab nres ceev ceev lossis qeeb lub cev muaj zog. Qhov no tuaj yeem yog regenerative braking lossis dynamic braking, nyob ntawm tus qauv tsim.

Txias System

VFDs tsim hluav taws xob thaum lub sijhawm ua haujlwm, thiab lub tshuab ua kom txias yog qhov tseem ceeb rau dissipate cov cua sov no thiab tiv thaiv cov khoom los ntawm overheating. Qhov no tuaj yeem suav nrog cov kiv cua, cov dab dej kub, lossis lwm yam kev ua kom txias.

EMI lim

Electromagnetic cuam tshuam (EMI) cov ntxaij lim dej yog siv los txo cov suab nrov electromagnetic uas tsim los ntawm VFD thiab tiv thaiv nws los ntawm kev cuam tshuam rau lwm yam khoom siv hluav taws xob.

Kev tiv thaiv nta

VFDs feem ntau suav nrog kev tiv thaiv xws li kev tiv thaiv overcurrent, tiv thaiv overvoltage, thiab lwm yam kev tiv thaiv kev nyab xeeb los tiv thaiv tus tsav thiab cov khoom siv txuas nrog.

Yuav Ua Li Cas Tswj VFD Rau Cov Tsav Tsheb

Kev tshuaj xyuas tsis tu ncua

Kev tshuaj xyuas tsis tu ncua ntawm VFD rau lub cev muaj zog yog qhov tseem ceeb los txheeb xyuas thiab daws txhua yam teeb meem ua ntej lawv dhau los ua teeb meem loj. Tshawb xyuas VFDs rau cov cim qhia ntawm overheating, xoob kev sib txuas, thiab cov khoom puas lossis hnav.

Tiv thaiv kev txij nkawm

Tsim thiab ua raws li kev tiv thaiv kev tiv thaiv rau VFD rau lub cev muaj zog, uas suav nrog kev tu ib txwm, lubrication, thiab hloov cov khoom hnav lossis puas. Qhov no pab txhawm rau txuas lub neej ntawm VFD thiab tiv thaiv kev ua tsis tiav.

Siv txoj cai VFD rau txoj haujlwm

Xyuas kom meej tias VFD rau lub cev muaj zog yog qhov loj thiab ntsuas rau lub cev muaj zog thiab daim ntawv thov nws yog tswj. Kev siv VFD tsis ncaj ncees lawm rau lub cev muaj zog tuaj yeem ua rau nws tsis ua haujlwm ntxov lossis ua haujlwm tsis zoo.

Khaws VFDs kom huv si thiab txias

Cov av, plua plav, thiab lwm yam kab mob tuaj yeem ua rau VFD rau lub cev muaj zog thiab ua tsis tiav. Khaws lub VFD rau cov motors huv si thiab xyuas kom meej tias lawv muaj qhov cua kom zoo kom dissipate cua sov.

Tsis tu ncua calibration

Tsis tu ncua calibration ntawm VFD rau motors yog qhov tseem ceeb los xyuas kom meej lawv txuas ntxiv raug thiab kev ntseeg tau. Ua raws li cov chaw tsim khoom cov lus qhia rau calibration.

Peb lub Hoobkas

Zhejiang Hertz Electric Co., Ltd. raws li lub zog hluav taws xob thev naus laus zis, kev tsav lub cev muaj zog thiab kev tswj hwm thev naus laus zis, thiab tso siab rau cov khoom siv ntau lawm thiab cov txheej txheem kev sim nruj, peb muab cov neeg siv khoom nrog tsawg-voltage thiab nruab nrab-voltage zaus converters, soft starters thiab servo tswj. systems thiab lwm yam kev lag luam daws teeb meem.

Daim ntawv pov thawj

FAQ

Q: Puas muaj VFD rau lub cev muaj zog tuaj yeem ntsia tau rau ntawm lub cev muaj zog?

A: Lub VFD rau lub cev muaj zog yog qhov sib txawv ntawm qhov ceev thiab nws tuaj yeem siv rau feem ntau ac motors. Txawm li cas los xij, muaj qee hom ac motors uas VFD tsis tuaj yeem siv rau. VFDs tsis tuaj yeem siv rau ntawm cov motors uas xav tau siab pib torque. VFD's kuj tsis tuaj yeem siv los khiav induction motors lossis ac induction motors vim tias VFD tsim cov khoom siv hluav taws xob sib txawv uas tsis sib txawv. Lub VFD tsuas tuaj yeem tswj tau synchronous ac motors, thiab VFD yuav tsum tsis txhob siv ntawm dc motors.

Q: Kuv puas tuaj yeem siv VFD rau cov motors ntawm ib-theem lub cev muaj zog?

A: Feem ntau cov tuam txhab VFD pom zoo kom VFD siv rau peb-theem motors. VFDs kuj tuaj yeem siv rau ntawm ib-theem motors, tab sis VFD tsis yog qhov kev xaiv zoo tshaj plaws thaum nws los txog rau kev tswj ceev ntawm ib-theem ac lub cev muaj zog. VFDs tuaj yeem ua haujlwm nrog cov khoom siv ib zaug yog tias lawv muaj kev tiv thaiv zoo.

Q: Puas yog VFD rau lub cev muaj zog hloov lub tshuab hluav taws xob?

A: Feem ntau VFD cov tuam txhab pom zoo kom VFDs yuav tsum tau nruab ze ntawm lub cev muaj zog kom tau txais kev tswj hwm zoo dua. VFD rau lub cev muaj zog feem ntau siv thaum nws tsim nyog cais ac lub cev muaj zog pib kom yog tias ib qho pib ua tsis tiav, VFDf yuav tsis cuam tshuam rau tag nrho lwm lub cev muaj zog ntawm tib lub zog faib hluav taws xob.

Q: Dab tsi yog VFD rau motors zoo?

A: VFD rau motors muaj ntau yam zoo dua v/f tswj lub cev muaj zog ceev tswj, cov txiaj ntsig ntawm vfd muaj xws li: smoother motor speed regulation, tsawg yuag, txo nqi thiab kev nyab xeeb zoo dua.

Q: Muaj pes tsawg lub cav muaj peev xwm 1 VFD rau kev tswj lub cev muaj zog?

A: Ib qho kev sib txawv ntawm lub zog tsav (VFD) tuaj yeem tswj 2 lossis 3 lub cev muaj zog ntawm ib lub sijhawm, ntau lub cev muaj zog tswj feem ntau ua tiav vim kev xav txog nyiaj txiag. Thaum nyob rau hauv cov piv txwv hauv qab no, ib tug txias ntauwd nrog 4 sib npaug zos motors yog tswj los ntawm ib tug kuj sib txawv zaus tsav.

Q: Puas yog nws tso cai rau kev txiav tawm ntawm VFD tsav thiab lub cev muaj zog?

A: Kev txiav tawm tuaj yeem siv nruab nrab ntawm tus tsav thiab lub cev muaj zog. Qhov no yog kev xyaum ua kom paub tseeb tias lub zog tsis ncav cuag lub cev muaj zog thaum lub sijhawm tu thiab lwm lub sijhawm tsis ua haujlwm. Nco ntsoov tias lub disconnect yuav tsum tsis txhob qhib los yog kaw thaum lub VFD khiav (tso tawm voltage los ntawm T1, T2, T3).

Q: Koj ua li cas rau VFD rau lub cev muaj zog?

A: Qhov ntsuas qhov ntsuas hluav taws xob ntawm VFD yuav tsum sib phim lub cev muaj zog / lub chaw siv hluav taws xob (xws li hauv Asmeskas, chav kawm 230 V lossis 460V chav kawm; hauv Canada, 230V, 460V, lossis 575V). Qhov kev ntsuas tam sim no (hauv amperes) ntawm VFD yuav tsum sib npaug los yog siab dua lub cev muaj zog qhov ntsuas tam sim no.

Q: Thaum twg koj yuav tsum tsis txhob siv VFD rau motors?

A: Koj lub cev muaj zog tsis tu ncua nrog xoom txwv ntawm qhov tso zis: Yog tias koj lub cev muaj zog tshwm sim los ntawm kev khiav ntawm qhov nrawm nrog tsis muaj throttling lossis damping, siv VFD yuav tsis txuag koj lub zog - nws yuav ua rau muaj kev phom sij ntau dua li qhov zoo. raws li koj yuav poob ib co efficiency.

Q: Dab tsi yog qhov ua yuam kev hauv VFD rau cov motors?

A: Overheating, tso saib teeb meem, teeb meem tswj lub cev muaj zog, kev sib txuas lus yuam kev, teeb meem kev siv hluav taws xob, teeb meem hauv av, kev ua haujlwm yuam kev, lub cev muaj zog tsis ua hauj lwm, kev cuam tshuam hluav taws xob, thiab cov khoom siv hluav taws xob tsis raug / tso tawm yog txhua yam teeb meem uas tuaj yeem cuam tshuam rau VFD kev ua tau zoo.

Q: Koj puas tuaj yeem overspeed lub cev muaj zog nrog VFD?

A: Nrog rau kev siv Variable Frequency Drives (VFD), lub cev muaj zog tuaj yeem khiav ntawm siab tshaj 60 Hz, hu ua overspeed mob, feem ntau yog tsav ncaj qha kiv cua phab ntsa / plenum kiv cua (ib NIH DRM 6.2. 4.2, qhov siab tshaj plaws kev khiav hauj lwm ceev yog 90 Hz).

Q: Dab tsi yog qhov lifespan ntawm VFD rau motors?

A: Qhov nruab nrab, kev tswj xyuas zoo VFD rau lub cev muaj zog yuav tsum nyob nruab nrab ntawm 15 thiab 20 xyoo. Txawm li cas los xij, nws tseem ceeb heev uas yuav tsum nco ntsoov tias qee chav yuav ua tsis tau ua ntej lossis ntev dua nyob ntawm qhov xwm txheej.

Q: Koj puas tuaj yeem thim rov qab lub cev muaj zog nrog VFD?

A: Thaum koj qhib lub cev muaj zog, nws yuav khiav rov qab. Nws yog feem ntau yooj yim los hloov cov kev taw qhia ntawm kev sib hloov nrog VFD nws tus kheej. Feem ntau VFD muaj qhov yooj yim toggle hais kom ua rau pem hauv ntej thiab thim rov qab. Hmoov tsis zoo, thaum lub cev muaj zog raug kaw thiab rov pib dua tom qab, nws yuav rov pib dua rov qab.

Q: Koj qhia li cas yog tias lub cev muaj zog tuaj yeem siv nrog VFD rau cov motors?

A: Xyuas kom meej tias koj lub cev muaj zog winding rwb thaiv tsev yog Class F lossis siab dua los pab tiv thaiv koj lub cev muaj zog. Xwb, nyob ntawm koj lub chaw tsim khoom lub cev muaj zog, daim ntawv teev npe yuav qhia tias "Inverter Duty" rau cov motors sib xws nrog VFDs.

Q: VFD loj npaum li cas rau 10 hp lub cev muaj zog?

A: Ua ntej, nrhiav FLA ntawm koj lub cev muaj zog, uas feem ntau yog 28 amps rau 10 HP lub cev muaj zog. Muab cov FLA los ntawm ob los xyuas kom meej tias VFD tuaj yeem tswj lub cev muaj zog pib thiab khiav haujlwm. Rau 10 HP lub cev muaj zog nrog 28 FLA, koj xav tau VFD ntsuas tsawg kawg yog 56 amps. Qhov no feem ntau txhais tau tias xaiv VFD nyob ib ncig ntawm 20 HP.

Q: Kuv puas tuaj yeem siv VFD loj dua rau lub cev muaj zog ntawm lub cev muaj zog?

A: VFDs raug xaiv los ntawm voltage, theem, thiab horsepower (HP). Tom ntej no, nws yog ib qho tseem ceeb uas yuav tau siv FLA (tag nrho load amps) ntawm lub cev muaj zog kom ua tiav qhov loj ntawm VFD. Thaum xaiv qhov no, ob peb lwm yam kev xav yuav tsum tau muab tso rau hauv. Ib qho loj VFD tuaj yeem siv rau lub cev muaj zog HP.

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