Marka ay timaaddo isku xidhka sahayda korantada ee 3-waji ah, laba hab oo caadi ah ayaa ah xidhiidhka xiddiga (ama wye) iyo xidhiidhka delta. Labada habba waxay leeyihiin faa'iidooyin iyo adeegsi u gaar ah, markaa waa muhiim in la fahmo faraqa u dhexeeya. Mid ka mid ah aasaaska injineernimada korantada waa fahamka sida nidaamyada 3-waji ay isugu xiran yihiin: Xiddigta (Y) ama Delta (Δ). Labadaba si weyn ayaa loo isticmaalaa, laakiin siyaabo kala duwan.
Xidhiidhka Xiddigta (Y).
- Dhexdhexaad waa la heli karaa → waxa uu keeni karaa 3- culaysyo weji iyo hal waji ah.
- Voltaga laynka=√3 × danab wajiga (koronta khadka sare).
- Caadi ahaan loo isticmaalo gudbinta fogaan - sababtoo ah waxay yaraynaysaa shuruudaha dahaarka.
{{0} Bilawga hadda waa ka hooseeya → u fiican in lagu bilaabo matoorada culus ee xidigta ka hor inta aanad u wareegin delta.
Isku xirka Delta (Δ).
- Ma jiro bar dhexdhexaad ah (kaliya 3 silig).
- Voltage khadka=Voltaga wejiga (socodka hadda socda oo sarreeya).
- Wuxuu bixiyaa hir bilawga sare → inta badan loo isticmaalo qaybinta iyo socodsiinta matoorrada culus.
- In ka sii adag, way sii socon kartaa xataa haddii hal waji hoos u dhaco (open delta).
Xeerka suulka:
Xiddiga → Ugu Wanaagsan gudbinta & isku dhafan (3-waji + hal-waji) culeysyo
Delta → Waxa ugu fiican qaybinta & socodsiinta mashiinada 3-waji ee culus.
Xidhiidhka xiddigta ayaa caadi ahaan loo adeegsadaa hababka ay culayska si siman ugu qaybsan yihiin saddexda weji. Qaabeyntani waxay ku habboon tahay nidaamyada leh culeysyo iska caabin ah oo isku dhafan. Dhanka kale, isku xirka delta ayaa loo door bidaa nidaamyada leh inta badan culeyska korantada - ama codsiyada halka loo baahan yahay koronto xariiq sare.