, 120. , 120.
:
eA=Emsinωt
eB=Emsin(ωt-120)
e=Emsin(ωt-240)
: E
A=Eej0, EB=Ee-j120, E=Ee-j240., .
.
, , ; x, y, z.
(), , .
, .
.
, . (- - - - -)
, , .
, , .
, (
Z1, Z2, Z3 ) 120, 0.IN=IAej0+IBe-j120+ICej120=0
.
, .. 0.
.
U
, U, U . I=I.
:
U
AB=UA-UBUBC=UB-UC
UAC=UA-UC
.
, UAB=U, UB=U
. 
I
=I .
U
=UAB=UBC=UACZA=ZB=ZC
: , , , , .
:
1. :
U
=U/
2. :
3 :
4 :
,
5 :
,
6 :
7 :
8 :
9 :
, 1,27 , 80 , 60 . , , , , , .
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