I-frequency converter – noma i-variable frequency drive (VFD) – iyithuluzi likagesi eliguqula ugesi one-frequency eyodwa uye komunye ugesi one-frequency ehlukile. I-voltage ivame ukufana ngaphambi nangemva kokuguqulwa kwe-frequency. Ama-frequency converter avame ukusetshenziselwa ukulawula isivinini sama-motor asetshenziselwa ukushayela amaphampu nabalandeli.
I-frequency converter iyithuluzi likagesi eliguqula ugesi one-frequency eyodwa uye komunye one-frequency. I-voltage ivame ukufana ngaphambi nangemva kokuguqulwa kwe-frequency. Ama-frequency converter avame ukusetshenziselwa ukulawula isivinini sama-motor asetshenziselwa ukushayela amaphampu namafeni.
Isibonelo esilandelayo sibonisa ukuthi lokhu kusebenza kanjani:
Ifeni inikezwa ugesi ongu-400 VAC, 50 Hz. Kuleli frikhwensi (50 Hz), ifeni ingasebenza ngesivinini esithile. Ukuze ifeni isebenze ngokushesha, kusetshenziswa i-frequency converter ukwandisa ifrikhwensi ibe (isibonelo) 70 Hz. Ngaphandle kwalokho, ifrikhwensi ingaguqulwa ibe ngu-40 Hz uma ifeni izosebenza kancane.
Awufuni ukuxhuma imishini emthonjeni wamandla ongafanele noma usengozini yokuvumela intuthu ukuba iphume emishinini yakho. Futhi intuthu ifana “ne-genie ebhodleleni”, uma isiphumile kudivayisi kagesi, awukwazi ukuyibuyisela…Imishini emikhulu neyezigaba ezintathu ayikwazi ukusebenza ngemvamisa engafanele njengoba imvamisa engafanele ingabangela umonakalo noma ukuguguleka kwangaphambi kwesikhathi emishinini.
Ngakho-ke, indlela yokuhlukanisa i-frequency converter yangempela esetshenziswa emshinini wokuwasha izimoto ezoba yinjongo eyinhloko.
Empeleni, cishe abathengisi bathi bane-converter futhi bayifaka emshinini wokuwasha izimoto. Kodwa akuyona i-frequency converter yangempela engashintsha i-voltage kanye nesivinini sokuhamba komshini wokuwasha izimoto. Ngokuvamile, iyinjini encane engu-0.4 efakwa emzimbeni ohambayo, futhi ayikwazi ukusetha amamodeli ahlukahlukene afaka ingcindezi ephezulu nephansi yamanzi okufafaza kanye nesivinini esiphezulu nephansi sabalandeli. Okubi nakakhulu, uma kungeyona i-frequency converter, lapho umshini uqala ukusebenza, i-instant current iphindwe izikhathi ezingu-6-7 kunomshini ojwayelekile, kuzokwenza kube lula ukuthi i-circus yonakale futhi ugesi uchitheke.
Umshini wokuwasha izimoto we-CBK usebenzisa ubuchwepheshe bokuguqula imvamisa engu-18.5kw ukushayela, futhi ngenxa yokucindezela kwamanzi okuphezulu nokuphansi kanye nesivinini esiphezulu nokuphansi samafeni, ukusetshenziswa kukagesi kuzokongiwa ngaphezu kuka-15%, okusho ukuthi umnikazi angasetha noma iyiphi inqubo angathanda ukuyenza. Ngakho-ke, umshini wokuwasha izimoto we-CBK unganciphisa isidingo sokulungiswa kanye nezindleko ezihambisana nawo.
Ngokuvamile, noma yini enenjini kuyo izodinga i-frequency converter, futhi umshini wokuwasha izimoto we-CBK ungakwenza lokho.
Isikhathi sokuthunyelwe: Septhemba-23-2022