Li-transformer tsa mekhahlelo e 3 hangata li na le bonyane li-winding tse 6- tse 3 tsa mantlha le tse 3 tsa bobeli. Maqhubu a mantlha le a bobeli a ka hokahanngoa ka litlhophiso tse fapaneng ho fihlela litlhoko tse fapaneng. Lits'ebetsong tse tloaelehileng, li-winding hangata li hokahanngoa ho e 'ngoe ea litlhophiso tse peli tse tsebahalang: Delta kapa Wye.
DELTA KHOPO
Khokahanong ea delta, ho na le mekhahlelo e meraro mme ha ho na lehlakore. Khokahano ea delta e hlahisoang e ka fana ka mojaro oa mekhahlelo e 3 feela. Mohala oa motlakase (VL) o lekana le motlakase oa phepelo. Mokhahlelo oa hajoale (IAB = IBC = ICA) o lekana le Mola oa hajoale (IA = IB = IC) o arotsoe ka √3 (1.73). Ha karolo ea bobeli ea transformer e hokahane le mojaro o moholo, o sa leka-lekanang, karolo ea mantlha ea delta e fana ka tekanyo e betere ea hajoale bakeng sa mohloli oa matla a kenang.
WYE KHOPO
Ka khokahanyo ea wye, ho na le mekhahlelo ea 3 le ho se nke lehlakore (N) - lithapo tse 'nè ka kakaretso. Phallo ea khokahanyo ea wye e nolofalletsa transformer ho fana ka motlakase oa 3-phase (phase-to-phase), hammoho le motlakase bakeng sa meroalo e le 'ngoe, e leng motlakase pakeng tsa mohato leha e le ofe le ho se nke lehlakore. Ntlha ea ho se nke lehlakore e ka boela ea thehoa ho fana ka tšireletso e eketsehileng ha ho hlokahala: VL-L = √3 x VL-N.
DELTA / WYE (D/Y)
D/y Melemo
Tlhophiso ea mantlha ea delta le ea bobeli ea wye (D/y) e hlahella ka lebaka la bokhoni ba eona ba ho fana ka mojaro o leka-lekaneng oa lithapo tse tharo setsing sa ho fehla matla, se amohelang lits'ebetso tse fapaneng ntle le moroallo. Tokiso ena hangata e khethoa bakeng sa ho fana ka matla ho likhoebo, indasteri, le libaka tsa bolulo tse nang le batho ba bangata.
Setupo sena se khona ho fana ka meroalo ea 3-mohato o le mong 'me e ka etsa hore ho be le sephetho se tloaelehileng ha mohloli o haella. E thibela ka katleho lerata (harmonics) ho tloha moleng ho ea lehlakoreng la bobeli.
D/y Mefokolo
Haeba khoele e le 'ngoe ho tse tharo e fosahetse kapa ea holofala, e ka beha ts'ebetso ea sehlopha sohle kotsing, 'me phetoho ea likhato tse 30 lipakeng tsa mapheo a mantlha le a bobeli a ka baka ho ripeha ho hoholo ho li-circuits tsa DC.
Nako ea poso: Aug-20-2024