- Kutheni le nto iinjini zinokutsha kakhulu ngoku kunangaphambili?
Ngenxa yophuhliso oluqhubekayo lwetekhnoloji yokufakelwa kwe-insulation, uyilo lweemotor lufuna zombini ukwanda kwemveliso kunye nokunciphisa umthamo, okwenza amandla okushisa eenjini ezintsha zibe ncinci kwaye zincinci, kunye nomthamo wokulayisha ubuthathaka kwaye ube buthathaka; kwaye ngenxa yokuphuculwa kwe-automation yemveliso, ii-motor kufuneka ziqhube rhoqo kwiindlela ezahlukeneyo ezifana nokuqala rhoqo, ukunyathela, ukujikeleza kwangaphambili kunye nokubuyisela umva, kunye nomthwalo oguquguqukayo, obeka iimfuno eziphezulu kwizixhobo zokukhusela iimoto. Ukongeza, ii-motor zinoluhlu olubanzi lwezicelo kwaye zihlala zisebenza kwiindawo ezibukhali kakhulu, ezinje ngokufuma, ubushushu obuphezulu, uthuli, ukonakala, njl.njl. Kudityaniswa nezitenxo ekulungisweni kweemoto kunye nokushiyiweyo kulawulo lwezixhobo. Zonke ezi zinto zenze ukuba iinjini zanamhlanje zonakaliswe ngokulula kunangaphambili.
- Kutheni le nto impembelelo yokukhusela yezixhobo zokukhusela zendabuko ayifanelekanga?
Izixhobo zesiNtu zokukhusela iimoto ikakhulu zii-fuses kunye ne-thermal relays. I-Fuse zezona zixhobo zokuqala nezilula zokukhusela. Enyanisweni, ii-fuses zisetyenziselwa ukukhusela iintambo zombane kunye nokunciphisa ukwanda koluhlu lweziphoso xa kwenzeka iimpazamo ezimfutshane.
Akukho nzululwazi ukucinga ukuba i-fuse inokukhusela i-motor kwisiphaluka esifutshane okanye ukugqithiswa, kunye nokukhetha i-fuse ngokuhambelana nomgangatho wangoku endaweni yokuqala yangoku ye-motor. Nangona kunjalo, kunokwenzeka ukuba bonakalise i-motor ngenxa yokusilela kwesigaba.
I-Thermal relay sesona sixhobo sisetyenziswa kakhulu sokukhusela ukugcwala kwemoto. Nangona kunjalo, i-thermal relay inomsebenzi omnye, uvakalelo oluphantsi, impazamo enkulu, kunye nozinzo olubi, oluye lwaqatshelwa uninzi lwabasebenzi bombane. Zonke ezi ziphene zenza ukhuseleko lwemoto lungathembeki. Oku kunjalo ngokwenene; nangona izixhobo ezininzi zixhotyiswe nge-thermal relays, isenzeko somonakalo wemoto ochaphazela imveliso eqhelekileyo isaxhaphakile.
- Umkhuseli wemoto ofanelekileyo?
Umkhuseli ofanelekileyo wemoto ayinguye onemisebenzi emininzi, okanye ebizwa ngokuba yeyona iphambili, kodwa eyona isebenzayo. Ngoko yintoni esebenzayo? Ukusebenza kufuneka kuhlangabezene neempawu zokuthembeka, uqoqosho, lula, njl., kwaye zibe nomlinganiselo ophezulu wexabiso lokusebenza. Ngoko yintoni enokuthenjwa?
Ukuthembeka kufuneka kuqala kuhlangabezane nokuthembeka komsebenzi, njengokugqithiswa kunye nemisebenzi yokungaphumeleli kwesigaba kufuneka ikwazi ukusebenza ngokuthembekileyo kwi-overcurrent kunye nokungaphumeleli kwesigaba kwiimeko ezahlukeneyo, iinkqubo kunye neendlela.
Okwesibini, ukuthembeka komkhuseli ngokwawo (ekubeni umkhuseli kukukhusela abanye, kufuneka abe nokuthembeka okuphezulu) kufuneka abe nokulungelelanisa, ukuzinza kunye nokuqina kwiindawo ezahlukeneyo ezinzima. Ezoqoqosho: Yamkela uyilo oluphucukileyo, ulwakhiwo olufanelekileyo, imveliso yobuchwephesha kunye nomgangatho omkhulu, ukunciphisa iindleko zemveliso, kunye nokuzisa izibonelelo zoqoqosho eziphezulu kakhulu kubasebenzisi. Ukulungeleka: Kufuneka ubuncinane ifane ne-thermal relays ngokufakela, ukusetyenziswa, ukulungiswa, i-wiring, njl., kwaye kube lula kwaye kube lula ngokusemandleni. Kungenxa yoko le nto iingcali ezifanelekileyo kudala ziqikelela ukuba ukwenza lula izixhobo zokukhusela iimoto ze-elektroniki, uyilo olungenawo umbane we-transformer (passive) kufuneka luyilwe kwaye lwamkelwe, kwaye i-semiconductors (efana ne-thyristors) kufuneka isetyenziswe endaweni ye-electromagnetic. ii actuator nabafowunelwa. Ngale ndlela, kunokwenzeka ukwenza isixhobo sokukhusela esinenani elincinci lamacandelo. Siyazi ukuba ukusebenza kuya kuzisa ukungathembeki. Omnye udinga amandla okusebenza ekusebenzeni okuqhelekileyo, kwaye enye iya kulahlekelwa amandla okusebenza xa isigaba saphukile. Oku kukuchasana okungenakukoyiswa konke konke.