3-phase transformers na-enwekarị opekata mpe 6 windings- 3 praịmarị na 3 sekọnd. Enwere ike ijikọ windings nke mbụ na nke abụọ na nhazi dị iche iche iji mezuo ihe dị iche iche. Na ngwa nkịtị, a na-ejikọkarị windings n'otu n'ime nhazi abụọ a ma ama: Delta ma ọ bụ Wye.
Njikọ DELTA
Na njikọ delta, enwere usoro atọ na enweghị nnọpụiche. Njikọ delta mmepụta nwere ike ịnye naanị ibu nke nkeji atọ. The akara voltaji (VL) hà nhata voltaji ọkọnọ. Usoro nke ugbu a (IAB = IBC = ICA) ruru Line current (IA = IB = IC) kewara √3 (1.73). Mgbe ejikọtara sekọndịrị nke transformer na ibu na-enweghị nha nha, delta primary na-enye nguzozi kachasị mma ugbu a maka isi iyi ike ntinye.
Njikọ WYE
Na njikọ wye, enwere 3-phases na a na-anọpụ iche (N) - wires anọ na mkpokọta. Mpụta nke njikọ wye na-enyere onye ntụgharị aka inye voltaji 3-phase (phase-to-phase), yana voltaji maka ibu otu akụkụ, ya bụ voltaji n'etiti oge ọ bụla na nnọpụiche. Enwere ike ịgbado ebe na-anọpụ iche iji nyekwuo nchekwa mgbe achọrọ ya: VL-L = √3 x VL-N.
DELTA/WYE (D/Y)
Uru D/y
Nhazi delta na nke abụọ na nke abụọ (D/y) pụtara maka ike ya iji nyefee ibu nha nha nha atọ na ike na-emepụta ike, na-anabata ngwa dị iche iche n'enweghị nsogbu. A na-ahọrọ nhazi a ugboro ugboro maka ịnye ike na mpaghara azụmahịa, ụlọ ọrụ mmepụta ihe, na nnukwu ebe obibi.
Nhazi a nwere ike ịnye ma 3-phase na ibu otu nkeji ma nwee ike ịmepụta mmepụta na-anọpụ iche mgbe isi mmalite adịghị. Ọ na-egbochi mkpọtụ (harmonics) nke ọma site na ahịrị gaa n'akụkụ nke abụọ.
D/y adịghị ike
Ọ bụrụ na otu n'ime coils atọ emejọọ ma ọ bụ nwee nkwarụ, ọ nwere ike imebi ọrụ nke otu ahụ niile, na ngbanwe usoro ogo 30 n'etiti windings nke mbụ na nke abụọ nwere ike ibute nnukwu mgbaka na sekit DC.
Oge nzipu: Ọgọst-20-2024