Ukukhupha i-corona kwenzeka xa intsimi yombane engalinganiyo iveliswa ngumqhubi ongagudiyo. Ejikeleze intsimi yombane engalinganiyo kwaye kufutshane ne-electrode ene-radius encinci yokugoba, xa i-voltage inyuka ukuya kwinqanaba elithile, ngenxa ye-ionization yomoya, kuya kubakho ukukhupha, kwenze i-corona.
Kwiimeko zokuveliswa kwe-corona, singafumanisa ukuba amasimi ombane angalinganiyo, ii-conductors ezingagudiyo, kunye nee-voltage eziphezulu ngokwaneleyo zezona meko zifunekayo zokuveliswa kwe-corona. Ke ngoko, i-corona iya kwenzeka ekupheleni kwee-windings zee-motor ezine-voltage ephezulu, ngakumbi kwii-motor ezine-voltage ephezulu kune-6kV, i-corona yee-stator windings iya kubonakala ngakumbi, kwaye okukhona i-voltage iphezulu, kokukhona ingxaki ye-corona iya kuba nkulu. Ke ngoko, kwii-windings zee-motor ezine-voltage ephezulu, amanyathelo onyango lwe-anti-corona athathwa ngokusebenzisa iingcingo ezikhethekileyo ze-electromagnetic kunye neeteyipu zokumelana nokusonga ngaphandle kwee-winding coils. Ngokuphathelele ingxaki ye-corona yee-motor ezine-voltage ephezulu, ukuqonda kwabantu kukwindawo efanelekileyo. Kutheni ke, i-corona ikwakho nakwii-motor ezine-variable-frequency?
Iimoto ze-variable frequency ziqhutywa zii-variable frequency drives. I-voltage output yi-variable frequency drive ayisiyo-sine wave efana neyombane kwi-industrial frequency, kodwa yi-square wave enokunyuka nokuwa okukhulu. Le pulse wave ekhethekileyo ibangela ukuba i-input voltage yemoto ibe ne-periodic peak overvoltages eziphindwe kabini kune-rated voltage. Ngenxa yesantya esikhawulezayo kakhulu sale pulse overvoltage, iya kubangela ukungalingani okukhulu kusasazo lwe-electrical field lwe-motor windings. Nangona uninzi lweemoto ze-variable frequency zii-low-voltage motors, indlela ekhethekileyo yokubonelela ngombane imisela ukungafanani kwe-electrical field kwi-windings zazo.
Ngokusekelwe kwiimpawu zenani lee-windings kunye nobude be-winding nganye kwi-motor, ii-windings zokuqala nezokugqibela ze-low-voltage high-power winding motor winding zithwala phantse yonke i-voltage amplitude, kwaye zikwayezona zichaphazeleka kakhulu kwiingxaki ze-motor winding. Ngaphezu koko, kuhlalutyo lwenkqubo yokufakela ii-winding, i-winding coil yokuqala ijongene nomonakalo omkhulu, kwaye ngaloo ndlela ijongene nengozi enkulu. Yingakho abavelisi abaninzi beemoto bebonelela ngokhuseleko olukhethekileyo kwii-windings zokuqala nezokugqibela. Kwii-motor ze-variable frequency eziguquguqukayo eziphantsi, ngenxa yamandla angalinganiyo entsimi kunye ne-voltage ebukhali ye-pulse, iziphelo ze-motor winding zineemeko ezisisiseko zokuvelisa i-corona. Ukuthintela ukuveliswa kwe-corona kwi-variable frequency motor, i-winding ye-variable frequency motor kufuneka isebenzise i-anti-corona electromagnetic wire ekhethekileyo, kwaye kufuneka kuthathwe amanyathelo okukhusela akhethekileyo kwii-windings zokuqala nezokugqibela.
Ixesha leposi: Julayi-31-2025