Chosinthira ma frequency - kapena variable frequency drive (VFD) - ndi chipangizo chamagetsi chomwe chimasintha magetsi okhala ndi ma frequency amodzi kukhala magetsi okhala ndi ma frequency ena. Voltage nthawi zambiri imakhala yofanana isanayambe komanso itatha kusintha ma frequency. Ma frequency converter nthawi zambiri amagwiritsidwa ntchito powongolera liwiro la ma mota omwe amagwiritsidwa ntchito kuyendetsa mapampu ndi mafani.
Chosinthira ma frequency ndi chipangizo chamagetsi chomwe chimasintha magetsi okhala ndi ma frequency ena kukhala magetsi okhala ndi ma frequency ena. Voltage nthawi zambiri imakhala yofanana isanayambe komanso itatha kusintha ma frequency. Ma frequency converter nthawi zambiri amagwiritsidwa ntchito powongolera liwiro la mainjini omwe amagwiritsidwa ntchito kuyendetsa mapampu ndi mafani.
Chitsanzo chotsatirachi chikuwonetsa momwe izi zimagwirira ntchito:
Fani imapatsidwa mphamvu ya 400 VAC, 50 Hz. Pafupipafupi iyi (50 Hz), fan imatha kuthamanga pa liwiro linalake. Kuti fan izithamanga mofulumira, chosinthira ma frequency chimagwiritsidwa ntchito kuwonjezera ma frequency kufika (mwachitsanzo) 70 Hz. Kapenanso, ma frequency angasinthidwe kukhala 40 Hz ngati fan ikufuna kuyenda pang'onopang'ono.
Simukufuna kulumikiza zida mu gwero lolakwika lamagetsi kapena mungakhale pachiwopsezo cholola utsi kutuluka mu zida zanu. Ndipo utsiwo uli ngati "genie m'botolo", ukatuluka mu chipangizo chamagetsi, simungathe kuubwezeretsa ... Zipangizo zazikulu komanso za magawo atatu sizingagwire ntchito pamafupipafupi olakwika chifukwa mafupipafupi olakwika angayambitse kuwonongeka kapena kuwonongeka msanga pazidazo.
Chifukwa chake, momwe mungasiyanitsire chosinthira ma frequency enieni chomwe chimagwiritsidwa ntchito pa makina ochapira magalimoto chomwe chidzakhala cholinga chachikulu.
Ndipotu, pafupifupi amalonda amanena kuti ali ndi chosinthira magetsi ndipo amachiyika pa makina ochapira magalimoto. Koma si chosinthira magetsi chenicheni chomwe chingasinthe mphamvu ya magetsi ndi liwiro loyenda la makina ochapira magalimoto. Nthawi zambiri, ndi mota yaying'ono ya 0.4 yomwe imayikidwa pa thupi loyenda, ndipo singathe kukhazikitsa mitundu yosiyanasiyana yomwe ndi kupopera madzi pang'ono ndi mphamvu yochepa komanso liwiro la mafani. Choyipa kwambiri ndichakuti, ngati si chosinthira magetsi, makina akayamba kugwira ntchito, mphamvu yamagetsi nthawi yomweyo imakhala nthawi 6-7 kuposa mphamvu yamagetsi wamba, izi zimapangitsa kuti magetsi awonongeke mosavuta komanso kuti magetsi awonongeke mosavuta.
Makina ochapira magalimoto a CBK amagwiritsa ntchito ukadaulo wosinthira ma frequency a 18.5kw kuti ayendetse, ndipo chifukwa cha kupopera madzi ndi mphamvu ya High&Low komanso kuthamanga kwa mafani, kugwiritsa ntchito magetsi kudzapulumutsidwa ndi zoposa 15%, zomwe zikutanthauza kuti mwiniwake akhoza kukhazikitsa njira iliyonse yomwe angafune. Chifukwa chake, makina ochapira magalimoto a CBK amatha kuchepetsa kufunikira kokonza ndi ndalama zomwe zimadza nazo.
Kawirikawiri, chilichonse chomwe chili ndi injini chimafunika chosinthira ma frequency, ndipo makina ochapira magalimoto a CBK amatha kuchita zimenezo.
Nthawi yotumizira: Sep-23-2022