Ukukhethwa nokugcinwa kwezixhumi ze-AC

I. Ukukhethwa kwezixhumi ze-AC
Imingcele elinganiselwe ye-contactor inqunywa ngokuyinhloko ngokuya nge-voltage, yamanje, amandla, imvamisa kanye nohlelo lokusebenza lwemishini eshajiwe.
(1) I-voltage yekhoyili ye-contactor ngokuvamile ikhethwa ngokuvumelana ne-voltage elinganiselwe yolayini wokulawula. Uma kucatshangelwa ukuphepha komugqa wokulawula, kuvame ukukhethwa ngokuya nge-voltage ephansi, engenza umugqa ube lula futhi wenze lula i-wiring.
(2) Ukukhethwa kwamanje okukaliwe kwesixhumi se-AC kufanele kucatshangelwe uhlobo lomthwalo, indawo yokusetshenziswa kanye nesikhathi sokusebenza esiqhubekayo. Isilinganiso samanje se-contactor sibhekisela kumthamo omkhulu ovunyelwe we-contactor ngaphansi kokusebenza kwesikhathi eside, nobude be-8 h, futhi ifakwe ebhodini lokulawula elivulekile. Uma isimo sokupholisa singesihle, isilinganiso samanje se-contactor sikhethwa ngo-110% ~ 120% wesilinganiso samanje somthwalo. Kumamotho asebenza isikhathi eside, ngenxa yokuthi ifilimu ye-oxide ebusweni bomuntu othintana naye ayinalo ithuba lokusulwa, ukumelana nokuxhumana kuyanda, futhi ukushisa kokuxhumana kudlula izinga lokushisa elivumelekile. Ekukhetheni kwangempela, isilinganiso samanje se-contactor singancishiswa ngo-30%.
(3) Imvamisa yokusebenza komthwalo nesimo sokusebenza sinomthelela omkhulu ekukhethweni komthamo we-AC contactor. Uma umthamo wokusebenza womthwalo udlula imvamisa yokusebenza elinganiselwe, amandla okuxhumana othintana naye azokhuliswa ngokufanelekile. Ngemithwalo evame ukuqala futhi enqanyuliwe, umthamo wokuxhumana we-contactor kufanele ukhuliswe ngokufanele ukuze kuncishiswe ukugqwala kokuxhumana futhi kunwetshwe impilo yesevisi.
2. Ukuhlaziywa kwephutha okuvamile nokugcinwa kwe-AC contactor ene-voltage ephansi
Izixhumi ze-AC zingaphuka njalo phakathi nomsebenzi futhi zingagqoka othintana nabo ngesikhathi sokusetshenziswa. Ngesikhathi esifanayo, ngezinye izikhathi ukusetshenziswa okungalungile, noma ukusetshenziswa endaweni enzima kakhulu, kuzonciphisa ukuphila koxhumana naye, okubangela ukwehluleka, ngakho-ke, ekusetshenzisweni, kodwa futhi ukukhetha ngokuvumelana nesimo sangempela, futhi ekusetshenzisweni kufanele. zigcinwe ngesikhathi, ukugwema ukulahlekelwa okukhulu ngemva kokwehluleka. Ngokuvamile, amaphutha avamile othintana nabo be-AC amaphutha othintana nabo, amaphutha ekhoyili namanye amaphutha emishini kagesi.
(1) Xhumana ne-welding ye-melt
Enqubweni yokumunca ukuthintana okuguquguqukayo nokumile, ukumelana nokuxhumana kwendawo yokuxhumana kukhulu ngokuqhathaniswa, okubangela indawo yokuxhumana ngemva kokuncibilika nokushisela ndawonye, ​​akukwazi ukunqanyulwa, okubizwa ngokuthi i-contact melt welding. Lesi simo ngokuvamile senzeka lapho imvamisa yokusebenza iphezulu kakhulu noma isetshenziswa ngokweqile, isifunda esifushane somthwalo, ingcindezi yentwasahlobo yokuxhumana incane kakhulu, ukumelana nomshini wejamu, njll. Uma lezi zimo zenzeka, zingasuswa ngokufaka i-contactor efanele noma ukunciphisa ukulayisha, ukuqeda amaphutha we-short-circuit, ukufaka esikhundleni othintana naye, ukulungisa ingcindezi yangaphezulu kothintana naye, futhi kubangele isici se-jam.
(2) Amaphuzu okuxhumana ukuze ushise noma ushise
Kusho ukuthi ukushisa kwekhalori kothintana naye osebenzayo kudlula izinga lokushisa elilinganiselwe. Lesi simo ngokuvamile sibangelwa izimo ezilandelayo: ingcindezi yasentwasahlobo incane kakhulu, ukuthintana nowoyela, izinga lokushisa lemvelo liphezulu kakhulu, ukuthintana nesistimu yokusebenza yesikhathi eside, ukusebenza kwamanje kukhulu kakhulu, okuholela ekuxhumaneni. umthamo wokunqamula awanele. Ingaxazululwa ngokulungisa ingcindezi yasentwasahlobo yokuxhumana, ukuhlanza indawo yokuxhumana, i-contactor, nokushintsha i-contactor ngomthamo omkhulu.
(3) Ikhoyili ishiselwa ngokweqile futhi iyasha
Isimo esijwayelekile sibangelwa i-coil interturn short circuit, noma lapho ukusetshenziswa kwamapharamitha kanye nokusetshenziswa kwangempela kwamapharamitha kungqubuzana, njenge-voltage elinganiselwe kanye ne-voltage yangempela yokusebenza ingahlangani. Kukhona futhi ithuba le-iron core mechanical block, kulokhu, ukususa iphutha le-block.
(4) I-contactor ayivaliwe ngemva kokunika amandla
Ngokuvamile, ungabheka ukuthi ikhoyili iphukile yini kuqala. Esimeni sokuhluleka kwamandla, i-multimeter ingasetshenziswa ukukala ukuthi ikhoyili ingaphakathi kwebanga elishiwo.
(5) Ukuntuleka kokumunca
Uma i-voltage yokunikezwa kwamandla iphansi kakhulu noma ishintshashintsha kakhulu, noma i-voltage elinganiselwe yekhoyili ngokwayo inkulu kune-voltage yesifunda sokulawula sangempela, ukumuncwa kwe-contactor nakho ngeke kwanele. I-voltage ingashintshwa ukuze ihambisane ne-voltage elinganiselwe yangempela ye-contactor. Ngesikhathi esifanayo, uma ingxenye ephathekayo ye-contactor ivinjiwe, okubangela ukutsheka komgogodla, okungase futhi kuholele ekunceleni okunganele, ingxenye enamathele ingasuswa futhi ilungise isikhundla somongo. Ngaphezu kwalokho, ukusabela force entwasahlobo likhulu kakhulu, kodwa futhi kungase kuholele ukuncela obanele, isidingo ulungise ukusabela force entwasahlobo.
(6) Oxhumana nabo abakwazi ukusethwa kabusha
Okokuqala, ungabheka ukuthi othintana nabo abanganyakazi nabamile bahlanganiswe ndawonye. Uma lokhu kwenzeka, ngokuvamile ungalulama ngokushintsha abathintwayo, futhi ubheke ukuthi kukhona yini okubhajwe ezingxenyeni ezinyakazayo.
Isitatimende: lesi sihloko okuqukethwe nezithombe ezivela kunethiwekhi, ukwephulwa komthetho, sicela uthinte ukuze ususe.