I-frequency converter - noma i-variable frequency drive (VFD) - iyisisetshenziswa sikagesi esiguqula i-current enefrikhwensi eyodwa iye kweyamanje nenye ifrikhwensi. I-voltage ivamise ukufana ngaphambi nangemuva kokuguqulwa kwefrikhwensi. Ama-frequency converter ajwayele ukusetshenziselwa ukulawula isivinini samamotho asetshenziswa ukushayela amaphampu namafeni.
I-frequency converter iyisisetshenziswa sikagesi esiguqula igagasi elinefrikhwensi eyodwa libe yamanje nenye ifrikhwensi. I-voltage ivamise ukufana ngaphambi nangemuva kokuguqulwa kwefrikhwensi. Ama-frequency converter ajwayele ukusetshenziselwa ukulawula isivinini samamotho asetshenziswa ukushayela amaphampu namafeni.
Isibonelo esilandelayo sibonisa ukuthi lokhu kusebenza kanjani:
Umlandeli unikezwa amandla amanje angu-400 VAC, 50 Hz. Kule frikhwensi (50 Hz), ifeni ingagijima ngesivinini esithile. Ukuze wenze ifeni isebenze ngokushesha, isiguquli sefrikhwensi sisetshenziswa ukukhulisa imvamisa ukuya (ngokwesibonelo) ku-70 Hz. Kungenjalo, imvamisa ingaguqulelwa ku-40 Hz uma ifeni izosebenza kancane.
Awufuni ukuxhuma izinto zokusebenza emthonjeni wamandla ongalungile noma usengozini yokuvumela intuthu ukuba iphume ezintweni zakho. Futhi intuthu ifana “ne-genie ebhodleleni”, uma isiphumile ocingweni lwe-elekthronikhi, awukwazi ukuyibuyisela phakathi ……Izisetshenziswa zesigaba esikhulu nesesi-3 azikwazi ukusebenza ngamafrikhwensi angalungile njengoba imvamisa engalungile ingabangela umonakalo noma ukuguga ngaphambi kwesikhathi emishinini.
Ngakho-ke, Indlela yokuhlukanisa isiguquli semvamisa sangempela esisebenza emshinini wokuwasha izimoto okuzoba inhloso eyinhloko.
Empeleni, cishe umthengisi uthi bane-converter futhi bafaka isicelo emshinini wokuwasha izimoto. Kodwa akusona isiguquli semvamisa sangempela esingashintsha i-voltage nesivinini esihambayo somshini wokuwasha izimoto. Ngokuvamile, iyinjini encane engu-0.4 esebenza emzimbeni onyakazayo, futhi ayikwazi ukumisa amamodeli ahlukahlukene okuyi-Hi&low pressure yokufafaza amanzi kanye ne-Hi&low speed of fans. Okubi nakakhulu, uma kungesona isiguquli se-frequency, lapho umshini uqala ukusebenza, okwamanje osheshayo izikhathi ezingu-6-7 kunamanje jikelele, kuzoba lula ukubangela ukuba isekisi ilimele futhi imoshwe kagesi.
Umshini wokuwasha izimoto we-CBK usebenzisa ubuchwepheshe be-converter engu-18.5kw ukuze ushayele, futhi ngenxa yengcindezi Ephezulu & Ephansi yokufafaza kwamanzi kanye nesivinini esikhulu nesiphansi samafeni, ukusetshenziswa kukagesi kuzokongwa ngaphezu kuka-15%, okusho ukuthi umnikazi angakwazi ukumisa noma iyiphi inqubo angathanda ukuyenza. Ngakho-ke, umshini wokugeza izimoto we-CBK unganciphisa isidingo sokulungiswa kanye nezindleko eziza nawo.
Imvamisa, noma yini enenjini kuyo izodinga isiguquli semvamisa, futhi umshini wokuwasha izimoto we-CBK ungakwenza lokho.
Isikhathi sokuthumela: Sep-23-2022