Thaum lub cev muaj zog tam sim no yog siab, nws feem ntau ua kom zoo li muaj cua sov hnyav heev. Cov ntsiab lus 7 hauv qab no tseem ceeb piav qhia cov laj thawj rau lub cev muaj zog tam sim no. Cia peb kawm txog lawv.
1. Khoom Siv Hluav Taws Xob
Muaj ntau cov laj thawj rau lub cev muaj zog rau overheat nyob rau hauv cov nqe lus ntawm fais fab tuag:
1. Lub zog hluav taws xob voltage yog siab dhau
Thaum lub zog hluav taws xob voltage yog dhau lawm, sab nraud hluav taws xob yuam, sib nqus flux, thiab sib nqus flux ntom ntawm lub cev muaj zog raws li. Vim tias qhov tseeb tias qhov ntau ntawm cov hlau poob yog sib xws rau cov xwm txheej ntawm kev sib nqus flucetic, ua rau kom muaj kev cuam tshuam ntawm cov hlau txheem. Thiab kev nce hauv kev sib nqus flux ua rau ib qho kev nce siab tam sim no, ua rau muaj kev nce tooj liab hauv lub pob zeb plooj thiab overheating ntawm winding. Yog li ntawd, thaum lub zog hluav taws xob voltage tshaj qhov ntsuas hluav taws xob ntawm lub cev muaj zog, nws yuav ua rau lub cev muaj zog rau overheat.
2. Lub zog muab hluav taws xob hluav taws xob tsawg dhau
When the power supply voltage is too low, if the electromagnetic torque of the motor remains constant, the magnetic flux will decrease, the rotor current will increase accordingly, and the load power component in the stator current will increase, causing an increase in copper loss in the winding and overheating of the stator and rotor windings.
3. Asymmetric fais fab khoom siv hluav taws xob
Thaum ib theem ntawm cov hluav taws xob tawg, ib theem ntawm lub fuse yog hlawv, nws yuav ua rau muaj ib theem hloov mus rau overheat thiab txawm hlawv vim yog qhov siab tam sim no. Yog li ntawd, fuses feem ntau tsis haum rau kev tiv thaiv peb-} page motors.
4. Unbalanced peb {-}} paim fais fab mov
Thaum peb {- theem hluav taws xob tsis sib xws, nws yuav ua rau peb lub cev muaj zog los tsis tu ncua ntawm lub cev muaj zog, ua rau cua tshuab cua kom dhau.
Raws li tuaj yeem pom los ntawm cov lus saum toj no, thaum lub cev muaj zog, lub zog hluav taws xob yuav tsum tau txiav txim siab ua ntej (cov pa muag, servo tsav kuj tuaj yeem suav hais tias yog hluav taws xob muab). Tom qab paub tseeb tias tsis muaj teeb meem nrog lub zog muab, xav txog lwm yam.
2 Load Cov Teeb Meem
Muaj ntau qhov laj thawj rau lub cev muaj zog ntawm kev thauj khoom:
1. Overload lag luam ntawm Electric Tsav
Thaum cov khoom siv tsis sib phim thiab lub zog ntawm lub cev muaj zog ntau dua li lub zog muaj zog ntawm lub tsheb ntev dhau los (piv txwv li ib lub tsheb me me), uas yuav ua rau lub cev muaj zog rau kev ua haujlwm tshaj. Thaum kho lub cev muaj zog overheated, nws yog qhov tsim nyog los txiav txim siab seb lub zog thauj khoom sib tw tiv thaiv cov dig muag thiab tsis pom kev.
2. Cov neeg ua haujlwm thauj khoom raug cab tsis yog ua haujlwm zoo
Txawm hais tias cov khoom siv tau sib phim, cov neeg kho tshuab thauj nws tau cab nws tsis ua haujlwm zoo. Thaum lub sijhawm ua haujlwm, lub thauj khoom txawv heev, thiab lub cev muaj zog muaj dhau thiab tsim cua sov.
3. Lub tshuab rub me ntsis yog malfunctioning
Thaum lub dragged Machinery tsis zoo, tig inflexibly los yog tau daig, nws yuav dhau lub cev muaj zog thiab ua rau lub cev muaj zog winding rau overheat. Yog li ntawd, thaum kho lub cev muaj zog overheating, lub zog thauj khoom tsis tuaj yeem tsis quav ntsej.
3 Teeb meem nrog lub cev muaj zog nws tus kheej
1. Open Circuit Court ntawm Lub Cev Muaj Zog Winding
Thaum ib theem ntawm lub cev muaj zog winding yog tawg lossis ib ceg ntawm lub parallel ceg tawg, nws yuav ua rau peb lub cev tsis txaus ntseeg thiab ua rau lub cev muaj zog rau overheat.
2. Luv Circuit Court ntawm lub cev muaj zog winding
Thaum lub voj voog luv luv tshwm sim hauv lub cev muaj zog winding, luv {0} {Circuit tam sim no yog ntau dua li cov kev ua haujlwm tooj liab tam sim no yog ntau dua li cov kev ua haujlwm tooj liab, ua rau nws overheat lossis txawm hlawv tawm.
3. Yuam kev nyob rau hauv lub hnub qub lub kaum lub cev muaj zog
Thaum lub cev tsis sib txuas yog misconnected rau lub hnub qub puab, lub cev muaj zog tseem tau hla dhau ntawm lub zog hluav taws xob, txawm ua rau lub cev muaj zog nres nws tus kheej. Yog tias lub sijhawm nres tsheb yog ntev dua thiab lub zog tsis txiav, cov cua yuav tsis tsuas yog overheat loj, tab sis kuj hlawv tawm. Thaum lub hnub qub lub cev muaj zog ua haujlwm rau hauv ib pawg duab peb sab, nws yuav ua rau muaj ob lub cev ua ke kom sov siab, nws yuav hlawv tawm cov cua daj cua dub.
4. Tsis ncaj ncees lawm kev sib txuas ntawm lub cev muaj zog chev
When a coil, coil group or phase winding group is connected in reverse, it will cause serious imbalance of three-phase current and cause overheating of the winding.
5. Kev siv kho tshuab tsis ua haujlwm ntawm hluav taws xob lub cev muaj zog
Thaum muaj lub cev muaj zog yog khoov, ua haujlwm sib sau ua ke, lossis cov kabmob muaj teeb meem, nws yuav ua rau lub cev muaj zog tam sim no, tooj liab kev sib txhuam, ua rau lub cev muaj zog rau overheat.
4 Qhov cua thiab cua sov dissipation teeb meem
1. Qhov kub thiab txias dhau lawm, ua rau cov pa hauv cov cua kub ua kom siab.
2. Muaj cov khib nyiab thaiv cov pa tawm, ua rau muaj huab cua tsis zoo thiab ua rau muaj huab cua tsis muaj pa.
3. Hmoov av ntau dhau hauv lub cev muaj zog cuam tshuam rau cua kub.
4. Tus kiv cua yog puas lossis nruab rov qab, ua rau tsis muaj cua lossis cov cua qis.
5. Ua tsis tiav cua tshuab los yog cua deflector sab hauv lub cev muaj zog txiav txim siab nyob rau hauv lub cev muaj zog tsis muaj ib qho huab cua.
5 kho cov teeb meem tsav
Qhov pib tam sim no ntawm lub cev muaj zog tshaj li 66%, thiab nquag muaj zog ua haujlwm kuj tseem tuaj yeem ua rau lub cev muaj zog.
6 series tiv thaiv qhov teeb meem
Lub miskas ntawm lub qhov txhab tsav thiab resistor, raws li cov haujlwm nquag ua haujlwm ntawm lub cev muaj zog, kuj tseem tuaj yeem ua rau siab tam sim no thiab kub dhau ntawm lub cev muaj zog.
7 lub cev muaj zog co teeb meem
Ntau dua kev co ntawm lub cev muaj zog tseem tuaj yeem ua rau muaj lub cev muaj zog tam sim no. Vim li cas thiab kev daws teeb meem:
1. Rotor Unbalance - leveling tshuav nyiaj
2. Unbalanced pulley lossis khoov hlua ...- kos thiab raug
3. Lub cev muaj zog thiab cov ris nra hnyav tsis tau raws li -}} Kos thiab kho tus axis ntawm chav tsev
4. Tsis muaj kev teeb tsa hluav taws xob ntawm lub cev muaj zog hluav taws xob - check installation thiab taw screws
5. Tam sim no overload -} txo cov load