Abanye abathengi, xa bendwendwela umzi-mveliso, baphakamisa umbuzo wokuba ingaba iimveliso zemoto zinokuphinda zithotyelwe phantsi kovavanyo lwe-dielectric ukumelana nombane. Lo mbuzo ubuye wabuzwa ngabasebenzisi abaninzi beemoto.Uvavanyo lwe-Dielectric ukumelana nombane luvavanyo lokufumanisa ukusebenza kwe-insulation ye-motor windings ngexesha lokwenziwa kwemveliso, kunye novavanyo lwemveliso yomatshini. Ikhrayitheriya yokugweba isiqinisekiso kukuba i-insulation ayichithwanga phantsi kweemeko ezithile.
Ukuqinisekisa ukuba ukusebenza kwe-motor insulation kuyahlangabezana neemfuno, ukongeza ekukhetheni ucingo olufanelekileyo lwe-electromagnetic kunye nezixhobo zokugquma, iziqinisekiso zenkqubo ethembekileyo ziyafuneka. Ngokomzekelo, ukukhuselwa ngexesha lokucubungula, ukulungiswa okufanelekileyo, izixhobo zokufakelwa kakuhle, kunye neeparitha zenkqubo efanelekileyo.
Ukuthatha i-windings of high-voltage motors njengomzekelo, uninzi lwabavelisi beemoto baya kwenza i-turn-to-turn kunye ne-dielectric ukumelana novavanyo lombane kwikhoyili nganye. Ngaphambi kokufakwa, undoqo onama-windings kunye nomatshini wonke ngexesha lovavanyo lokuhlola uya kujongana ne-dielectric ukumelana novavanyo lombane. Oku kusibuyisela kumathandabuzo abathengi malunga nomba we-dielectric ukumelana.
Ukuthetha nenjongo, uvavanyo lwe-dielectric ukumelana nombane luvavanyo olutshabalalisayo olungenakuguqulwa. Kungakhathaliseki ukuba i-windings okanye iikhoyili zomntu ngamnye, akukhuthazwa ukuba kuqhutywe iimvavanyo eziphindaphindiweyo, kunye nemfuneko yokufumana iingxaki njengesiseko. Kwiimeko ezikhethekileyo apho uvavanyo oluphindaphindiweyo lufunekayo, i-voltage yokuvavanya kufuneka incitshiswe ngokweemfuno ezisemgangathweni ezifanelekileyo zokunciphisa umonakalo kwi-insulation kangangoko kunokwenzeka.
Ngokumalunga neDielectric Withstand Voltage Tester
I-dielectric ukumelana ne-voltage tester sisixhobo sokulinganisa amandla ombane we-dielectric. Inokuvavanya ngokuchanekileyo, ngokuchanekileyo, ngokukhawuleza, kwaye ngokuthembekileyo ivavanya izalathisi ezahlukeneyo zokhuseleko lombane ezinje nge-voltage yokumelana, amandla ombane wokuqhekeka, kunye nokuvuza kwangoku kwezinto ezivavanyiweyo. Ngokusebenzisa i-dielectric ukumelana ne-voltage tester, iingxaki zinokufunyanwa kwaye ukuthotyelwa kokusebenza kwe-insulation kunokumiselwa.
● Khangela ukukwazi ukugquma ukumelana nombane osebenzayo okanye umbane ogqithisileyo.
● Qwalasela umgangatho wokwenziwa kokugquma okanye ukugcinwa kwezixhobo zombane.
● Ukuphelisa umonakalo wokugquma okubangelwa yimathiriyeli ekrwada, ukusetyenzwa, okanye ukuthuthwa, kunye nokunciphisa izinga lokusilela kwangoko kweemveliso.
● Hlola ukuthotyelwa kokucoceka kombane kunye nomgama we-creepage wokugquma.
Imigaqo yokuKhetha i-Dielectric ukumelana noVavanyo lweVoltage
Eyona ndlela ilungileyo yokumisela umbane wovavanyo kukuseta ngokwemigaqo efunekayo kuvavanyo. Ngokubanzi, uvavanyo lombane lusetwa kumaxesha ama-2 ombane olinganisiweyo kunye ne-1000V. Ngokomzekelo, ukuba imveliso ine-voltage elinganisiweyo ye-380V, umbane wokuvavanya uya kuba ngu-2 x 380 + 1000 = 1760V. Ewe kunjalo, amandla ombane ovavanyo nawo anokwahluka ngokuxhomekeke kwiklasi yokugquma kwaye iintlobo ezahlukeneyo zeemveliso zineemfuno zombane ezahlukeneyo.
Kutheni kubalulekile ukujonga rhoqo ukuthembeka kwesekethe yovavanyo?
Abavavanyi be-Dielectric ukumelana nombane kumgca wemveliso basetyenziswa rhoqo kakhulu, ngakumbi izikhokelo zovavanyo kunye nezixhobo zovavanyo ezihlala zishukuma, zibenza bathande ukuqhawuka kwangaphakathi kocingo olungundoqo kunye neesekethe ezivulekileyo, ekungekho lula ukuzibona. Ukuba kukho isiphaluka esivulekileyo nakweyiphi na indawo kwi-loop, i-voltage ephezulu ephuma kwi-dielectric ukumelana ne-voltage tester ayinakusetyenziswa ngokwenene kwinto evavanyiweyo. Ezi zizathu zinokubangela ukuba i-voltage ephezulu ingasetyenziswa ngokwenyani kwinto evavanyiweyo ngexesha lokuvavanywa kokuqina kwe-dielectric, kwaye ngokwemvelo, ukuqukuqela kwangoku kwinto evavanyiweyo kuya kuba phantse zero. Ekubeni ingagqithisi umda ophezulu obekwe yi-dielectric ukumelana ne-voltage tester, isixhobo siya kunika ngokukhawuleza ukuba uvavanyo lufanelekile, luqwalasela ukuba i-insulation ifaneleke. Nangona kunjalo, idatha yovavanyo kule meko ayiyonyani. Ukuba into evavanyiweyo yenzeka ineziphene zokugquma ngeli xesha, oko kuya kukhokelela kwisigwebo esigwenxa.
Ixesha lokuposa: Jul-31-2025