Electric motors yog indispensable hwj chim qhov khoom siv nyob rau hauv manufacturing kev lag luam. Vim li cas lub cev muaj zog hlawv? Yog vim li cas? Koj yuav pom tias muaj ntau qhov xwm txheej thaum lub sijhawm tsim khoom uas yuav ua rau lub cev muaj zog hlawv!
Txhawm rau txheeb xyuas qhov ua rau, peb tuaj yeem pib ua ntej los ntawm lub hauv paus ntawm kev ua haujlwm tsis zoo. Koj puas tuaj yeem paub yog tias cov bearings lossis coils ntawm lub cev muaj zog raug hlawv? Yog hais tias lub kauj yog burnt tawm, nws qhia tau hais tias nws yog tshwm sim los ntawm hluav taws xob txhaum; Yog hais tias tus kabmob kub hnyiab tawm, nws qhia tau hais tias kev ua haujlwm tsis ua haujlwm thiab cov khoom siv tsis zoo ntawm lub cev muaj zog. Feem ntau tshwm sim los ntawm overcurrent, qee zaum vim qhov tsis ruaj tsis khov, siab lossis tsis tshua muaj hluav taws xob, lub kauj yuav luv luv thiab hlawv lub cev muaj zog. Txhawm rau tshem tawm qhov ua tau no, nws tuaj yeem tshawb xyuas seb qhov kev khiav hauj lwm voltage txawv ntau dhau los ntawm qhov ntsuas hluav taws xob. Yog tias muaj, nws yog qhov txhaum uas tshwm sim los ntawm qhov tsis ruaj tsis khov; Yog tsis yog, nws yog tshwm sim los ntawm qhov tsis ruaj khov tam sim no.
Qhov luv luv ntawm lub cev muaj zog tam sim no feem ntau tuaj yeem muab faib ua plaub qhov xwm txheej:
1. Lub tshuab tsis ua haujlwm ntawm lub twj tso kua mis ua rau lub cev muaj zog dhau, uas ua rau cov khoom siv hluav taws xob ntau dhau thiab hlawv ntawm lub kauj.
2. Muaj teeb meem nrog cov cua kub dissipation ntawm lub cev muaj zog.
3. Qhov chaw ua haujlwm ntawm lub cev muaj zog yog ntub.
4. Kev ua haujlwm ntau dhau ntawm cov khoom siv, kev ua haujlwm ntev tshaj li qhov ntsuas tam sim no. Nyob rau hauv lub neej txhua hnub, qhov pib tam sim no ntawm lub tshuab hluav taws xob yog 3-5 zaus ntawm qhov ntsuas tam sim no, yog li nws yog qhov tsim nyog kom tsis txhob pib cov khoom siv nrog lub load lossis tag nrho cov load.
Overload thiab theem poob yog ob qho txhaum cai hauv cov motors. Hauv qab no yog ib qho kev ntsuam xyuas:
Qhov ua rau overload feem ntau yog vim lub cev muaj zog khiav mus ntev nrog overcurrent, overheating, nquag pib lossis braking, thaiv qhov tsis raug, thiab lwm yam. Nws cov yam ntxwv yog tias tag nrho cov windings tig dub, qhov kawg ties hloov xim thiab ua nkig los yog tawg.
Yog vim li cas rau theem poob yog feem ntau yog vim lub hwj chim mov theem poob los yog unclosed contactor contactor nyob rau hauv Circuit Court, ua rau disconnected los yog xoob kev twb kev txuas cov ntsiab lus, los yog oxidized contact txoj hauj lwm. Nws tus yam ntxwv yog tias ib los yog ob theem ntawm lub winding yog tag nrho blackened, thiab lub kauj yog symmetrically thiab tsis tu ncua puas.
Thaum lub cev muaj zog txuas los ntawm daim duab peb sab kub hnyiab tawm ntawm ib-theem winding, thiab lub cev muaj zog txuas nrog lub hnub qub Y hlawv tawm ob-theem winding. Yog li ntawd, yog hais tias lub cev muaj zog burns tawm vim theem poob, yuav muaj unburned windings; Yog hais tias lub cev muaj zog hlawv tawm vim overload, tag nrho peb-theem windings yuav puas rau hauv av rwb thaiv tsev.
Yog li ntawd, lub cev muaj zog faults yuav muab faib ua ob pawg: mechanical faults thiab hluav taws xob faults. Yog hais tias lub cev muaj zog tsuas yog kub hnyiab tawm vim kev siv tshuab tsis ua haujlwm, tus neeg muag khoom lub cev yuav tsum tau hloov ncaj qha; Yog tias nws yog hluav taws xob txhaum cai, txoj hauv kev zoo tshaj plaws yog txhawm rau txhim kho lub cev muaj zog tiv thaiv ua ntej txhawm rau tiv thaiv kev tiv thaiv thiab tsis txhob tshwm sim yav tom ntej.