I-Shaft current yingxaki eqhelekileyo nengaphephekiyo kwiimoto ezine-voltage ephezulu kunye neemoto ezine-variable-frequency. I-Shaft current inokubangela umonakalo omkhulu kwinkqubo ye-bearing yemoto. Ngenxa yesi sizathu, abavelisi abaninzi beemoto basebenzisa iinkqubo ze-insulating bearing okanye amanyathelo okudlula ukuze baphephe iingxaki ze-shaft current. Ukuveliswa kwe-shaft current kungenxa yokuhamba kwe-magnetic flux etshintsha-tshintsha ngexesha kwisekethe eyenziwe yi-shaft yemoto, ii-bearing, kunye negumbi le-bearing, ebangela i-shaft voltage kwi-shaft kwaye ivelise i-current xa isekethe ivuliwe. Yinto ebonakalayo ene-voltage ephantsi, i-high-current ebangela umonakalo omkhulu kwinkqubo ye-bearing yemoto kwaye iya kutshabalalisa ii-bearing ngexesha elifutshane ngenxa yokukhukuliseka kwe-electro. I-motor core punching yishiti efana nefeni eneendawo ezibekwe kunye nesiseko. I-split core yemoto enkulu kunye ne-eccentricity ye-rotor zizinto ezibalulekileyo ekuveliseni i-shaft current. Ke ngoko, i-shaft current iba yingxaki ephambili kwiimoto ezinkulu.
Ukuze kuthintelwe ingxaki yamandla ombane we-shaft, kufuneka kuthathwe amanyathelo afunekayo ekukhetheni nasekuyilweni kwamacandelo kunye nezinto ukuze kususwe ngokwethiyori izinto ezivelisa amandla ombane we-shaft. Inani lee-seams S kumjikelezo lilawulwa kwaye lilungiswa bubudlelwane phakathi kwe-S kunye ne-major common divisor t yenani lee-motor pole pairs. Xa i-S/t ilinani elilinganayo, iimeko zokuvelisa amandla ombane we-shaft azifezekiswa, kwaye ngokwemvelo akuyi kubakho amandla ombane we-shaft; xa i-S/t ilinani elingaqhelekanga, kunokwenzeka ukuba amandla ombane we-shaft aveliswe, kwaye amandla ombane we-shaft aveliswe. Nokuba olu hlobo lwemoto yimoto ye-industrial frequency, kuya kubakho iingxaki zamandla ombane we-shaft. Ke ngoko, kwiimoto ezinkulu, amanyathelo okuphepha amandla ombane we-shaft aqhele ukuthathwa.
Ukongeza, ii-harmonics eziphezulu zeemoto ezitshintshatshintshayo nazo zezinye zezizathu ze-shaft current. Nokuba inamandla kangakanani na i-variable frequency motor, kunokubakho i-shaft current, ngoko ke iimoto ezininzi ezitshintshatshintshayo zamandla amancinci ziya kusebenzisa ii-insulated bearings, ngelixa uninzi lweemoto ezinamandla aphezulu ziya kusebenzisa ii-insulated end covers, okanye zithathe amanyathelo okukhusela kwindawo ye-shaft bearing; ukuqinisekisa ukuhambelana kweemoto ezitshintshatshintshayo kunye neenxalenye zemoto eziqhelekileyo ze-industrial frequency, abanye abavelisi baya kuthatha amanyathelo okudlula kwindawo ye-bearing cover.
Ixesha lokuthumela: Agasti-20-2024