Okwangoku, inani elikhulu leenjini ze-AC ze-asynchronous zisetyenziswa kumashishini oshishino kunye nemigodi, uninzi lwawo olusebenzisa indlela yokuqala ngqo.Ukuqala ngokuthe ngqo yeyona ndlela ilula yokuqala, ukuqala i-motor ngemela okanye i-contactor eqhagamshelwe ngokuthe ngqo kwigridi yamandla.Inzuzo yokuqalisa ngokuthe ngqo kukuba izixhobo zokuqalisa zilula kwaye isantya sokuqala sikhawuleza, kodwa umonakalo wokuqalisa ngokuthe ngqo mkhulu: (1) impembelelo yegridi yamandla: Ukugqithisa ukuqala ngoku (akukho mthwalo oqala ngoku ukuya kuma-4 ukuya kumaxesha angama-7). umsinga olinganisiweyo, oqala ngomthwalo ukuya kuthi ga kwi-8 ukuya kumaxesha ali-10 okanye ngaphezulu), uya kubangela ukuhla kwamandla ombane wegridi, kuchaphazele ukusebenza okuqhelekileyo kwezinye izixhobo zombane, kunokubangela isenzo sokukhusela umbane, okukhokelela ekukhubekeni okuyingozi kwezixhobo.Kwangaxeshanye, isiqalo esikhulu kakhulu sangoku siya kwenza ubushushu bemoto, ngaloo ndlela kukhawuleziswe ukuguga kwe-insulation, okuchaphazela ubomi bemoto;(2) impembelelo yomatshini: i-torque yempembelelo egqithisileyo idla ngokubangela ukuba i-motor rotor cage bar, isiphelo sentsimbi yokwaphuka kunye ne-stator end winding insulation wear, okukhokelela ekuqhekekeni, ukugqwetheka kweshaft, ukudityaniswa, ukonakaliswa kwegiya kunye nokukrazuka kwebhanti;(3) Impembelelo kumatshini wokuvelisa: uxinzelelo utshintsho olukhawulezileyo kwinkqubo yokuqala luhlala lubangela umonakalo kumbhobho wenkqubo yempompo kunye nevalve, ukunciphisa ubomi benkonzo;Ichaphazela ukuchaneka kothumelo kunye nolawulo lwenkqubo eqhelekileyo.Zonke ezi zibeka isoyikiso ekusebenzeni okukhuselekileyo nokuthembekileyo kwezixhobo, kodwa kwakhona kubangela ukulahlekelwa kwamandla okuqala ngokugqithisileyo, ngakumbi xa ukuqala rhoqo kunye nokuyeka kuninzi ngakumbi.
Ukuze sisombulule ezi ngxaki zingentla, siphuhlise iamandla ombane aphezulu isiqalisi esithambileyo semoto.Isigaba ngasinye senziwe ngoluhlu lwamacandelo e-thyristor adibeneyo, kwaye i-voltage kwicala le-stator ye-motor inyuka ngokucothayo ngexesha lokuqalisa ukufezekisa injongo yokunciphisa umbane.Umsebenzi ogqibeleleyo wokukhusela i-motor uqinisekisa ukuba i-motor inokukhuselwa ngexesha xa iphoso elifana nokungabikho kwesigaba, ukungalingani kwesigaba samanje, ukugqithisa kunye nokungabikho kombane kwenzeka ngexesha lokuqala.
Ukusebenzisa imotor soft starterukulawula ukuqala kwemoto kunokusombulula ngempumelelo ezi ngxaki zingasentla ezibangelwa kukuqalisa ngokuthe ngqo.
Ixesha lokuposa: Nov-11-2023