3-phase transformers inowanzova ne6 windings- 3 yekutanga uye 3 yechipiri. Iyo yekutanga uye yechipiri windings inogona kubatanidzwa mune akasiyana masisitimu kuti asangane nezvinodiwa zvakasiyana. Mumashandisirwo akajairwa, iwo ma windings anowanzo kubatanidzwa mune imwe yeaviri akakurumbira masisitimu: Delta kana Wye.
DELTA CONNECTION
Mukubatana kwe delta, kune zvikamu zvitatu uye hapana kwazvakarerekera. Iyo inobuda delta yekubatanidza inogona kupa 3-chikamu mutoro chete. Iyo line voltage (VL) yakaenzana nekupa voltage. Phase current (IAB = IBC = ICA) yakaenzana neMutsetse wazvino (IA = IB = IC) wakakamurwa ne√3 (1.73). Kana yechipiri chetransformer chakabatana kune hombe, isina kuenzana mutoro, iyo delta yekutanga inopa iri nani yazvino chiyero kune yekuisa simba sosi.
WYE CONNECTION
Mukubatana kwewye, kune 3-phase uye isina kwazvakarerekera (N) - waya ina zvachose. Kubuda kwewye connection kunoita kuti transformer ipe 3-phase voltage (phase-to-phase), pamwe chete nemagetsi ekutakura kwechikamu chimwe chete, iyo inonzi voltage pakati pechikamu chipi nechipi uye kusarerekera. Nzvimbo isina kwayakarerekera inogona zvakare kudzikwa kuti ipe imwe chengetedzo kana ichidikanwa: VL-L = √3 x VL-N.
DELTA / WYE (D/Y)
D/y Zvakanakira
Iyo yekutanga delta uye yechipiri wye (D/y) kumisikidzwa inomira kunze kwekugona kwayo kuendesa matatu-waya yakaenzana mutoro kune-simba rinogadzira utility, inogadzirisa akasiyana maapplication zvisina musono. Ichi chigadziriso chinowanzo sarudzwa kuti chipe magetsi kune ekutengesa, maindasitiri, uye akakwira-density nzvimbo dzekugara.
Iyi setup inokwanisa kupa ese matatu-chikamu uye imwe-chikamu mitoro uye inogona kugadzira yakajairika inobuda isina kwayakarerekera kana sosi ikashaikwa. Iyo inonyatso kudzvinyirira ruzha (harmonics) kubva kumutsara kuenda kune yechipiri divi.
D/y Zvakaipa
Kana coil imwe chete kubva pamatatu ikatadza kana kuremara, inogona kukanganisa kushanda kweboka rose, uye 30-degree phase shift pakati pepuraimari nesecondary windings inogona kukonzera ripple yakakura mumaseketi eDC.
Nguva yekutumira: Aug-20-2024