- Vim li cas cov motors feem ntau yuav hlawv tam sim no dua li yav dhau los?
Vim yog kev txhim kho txuas ntxiv ntawm kev siv tshuab rwb thaiv tsev, kev tsim cov motors yuav tsum tau nce cov zis thiab txo qhov ntim, ua rau lub thermal muaj peev xwm ntawm cov motors tshiab me me, thiab lub peev xwm overload tsis muaj zog thiab tsis muaj zog; thiab vim yog kev txhim kho ntawm kev tsim khoom automation, lub cev muaj zog yuav tsum tau khiav ntau zaus hauv ntau hom xws li pib nquag, nres, tig mus rau pem hauv ntej thiab rov qab, thiab cov khoom sib txawv, uas tso cov kev xav tau ntau dua ntawm cov khoom siv tiv thaiv lub cev muaj zog. Tsis tas li ntawd, cov motors muaj ntau yam kev siv thiab feem ntau ua haujlwm nyob rau hauv ib puag ncig hnyav heev, xws li cov av noo, kub kub, plua plav, corrosive, thiab lwm yam. Ua ke nrog cov kev tsis sib xws hauv kev kho lub cev muaj zog thiab kev ua tsis tiav hauv kev tswj cov khoom siv. Tag nrho cov no tau ua rau niaj hnub no lub cev muaj zog ua kom yooj yim dua li yav dhau los.
- Vim li cas qhov kev tiv thaiv ntawm cov khoom siv tiv thaiv ib txwm tsis zoo?
Cov khoom siv tiv thaiv lub cev muaj zog yog cov fuses thiab thermal relays. Fuses yog cov khoom siv tiv thaiv ntxov tshaj plaws thiab yooj yim tshaj plaws. Qhov tseeb, fuses feem ntau yog siv los tiv thaiv cov kab hluav taws xob thiab txo qhov kev nthuav dav ntawm qhov txhaum thaum muaj kev ua txhaum luv luv.
Nws yog unscientific xav tias lub fuse tuaj yeem tiv thaiv lub cev muaj zog los ntawm luv luv Circuit Court lossis overload, thiab xaiv lub fuse raws li qhov ntsuas tam sim no es tsis txhob pib tam sim no ntawm lub cev muaj zog. Txawm li cas los xij, nws yuav ua rau lub cev puas tsuaj ntau dua vim yog theem tsis ua haujlwm.
Thermal relay yog qhov siv ntau tshaj plaws ntawm lub cev muaj zog tiv thaiv kev tiv thaiv. Txawm li cas los xij, cov thermal relay muaj ib qho kev ua haujlwm, tsis tshua muaj kev nkag siab, qhov yuam kev loj, thiab kev ruaj ntseg tsis zoo, uas tau lees paub los ntawm feem ntau ntawm cov neeg ua haujlwm hluav taws xob. Tag nrho cov teeb meem no ua rau lub cev muaj zog tiv thaiv tsis muaj kev ntseeg siab. Qhov no yog qhov tseeb; Txawm hais tias muaj ntau yam khoom siv tau nruab nrog thermal relays, qhov tshwm sim ntawm lub cev muaj zog puas tsuaj cuam tshuam rau kev tsim khoom ib txwm muaj.
- Zoo tagnrho lub cev muaj zog tiv thaiv?
Qhov zoo tshaj plaws lub cev muaj zog tiv thaiv tsis yog ib qho uas muaj lub luag haujlwm tshaj plaws, los yog lub npe hu ua siab tshaj, tab sis qhov ua tau zoo tshaj plaws. Yog li dab tsi yog cov tswv yim? Practicality yuav tsum ua tau raws li cov ntsiab lus ntawm kev ntseeg siab, kev lag luam, kev yooj yim, thiab lwm yam, thiab muaj qhov ua tau zoo-tus nqi piv. Yog li dab tsi yog kev ntseeg siab?
Kev ntseeg siab yuav tsum ua ntej kom tau raws li qhov kev ntseeg siab ntawm kev ua haujlwm, xws li overcurrent thiab theem tsis ua haujlwm yuav tsum muaj peev xwm ua tau zoo rau kev ua haujlwm overcurrent thiab theem tsis ua haujlwm hauv ntau lub sijhawm, txheej txheem, thiab cov txheej txheem.
Qhov thib ob, kev ntseeg siab ntawm tus neeg tiv thaiv nws tus kheej (vim tias tus tiv thaiv yog los tiv thaiv lwm tus, nws yuav tsum muaj kev ntseeg siab) yuav tsum muaj kev hloov pauv, kev ruaj ntseg thiab ua haujlwm ntev rau ntau qhov chaw hnyav. Kev lag luam: txais kev tsim qauv zoo, tsim nyog qauv, kev tshaj lij thiab kev tsim khoom loj, txo cov nqi khoom, thiab nqa cov txiaj ntsig kev lag luam siab heev rau cov neeg siv. Kev yooj yim: Nws yuav tsum yog yam tsawg kawg uas zoo ib yam li thermal relays nyob rau hauv cov nqe lus ntawm installation, siv, kho, thaiv, thiab lwm yam., thiab ua kom yooj yim thiab yooj yim li sai tau. Nws yog qhov tseeb vim tias qhov no cov kws tshaj lij tau kwv yees ntev ntev tias txhawm rau ua kom yooj yim hauv hluav taws xob tiv thaiv cov cuab yeej siv hluav taws xob, cov qauv tsim tsis muaj hluav taws xob hloov hluav taws xob (passive) yuav tsum tau tsim thiab siv, thiab cov khoom siv hluav taws xob (xws li thyristors) yuav tsum tau siv los ntawm electromagnetic. actuators nrog kev sib cuag. Nyob rau hauv txoj kev no, nws yog ib qho ua tau los tsim cov cuab yeej tiv thaiv uas muaj tsawg kawg ntawm cov khoom. Peb paub tias active yuav inevitably coj unreliability. Ib qho xav tau kev ua haujlwm lub zog rau kev ua haujlwm ib txwm, thiab lwm qhov yuav poob lub zog ua haujlwm thaum lub sijhawm tawg. Qhov no yog qhov kev tsis sib haum xeeb uas tsis tuaj yeem kov yeej txhua.