- , . 1000 ( 380/220, 220/127 660/380). : , ..
( ) , . , ..
.
- , 2 .
- 10.
I=100·K·P/ ··sφ·η, (3.67)
I , ;
- ; = 5..7
- , .; = 2,2 .
- , ; = 380.
cosφ - , cosφ = 0,8.
η :
η=0,81
I = 0,4·I = 0,4·3,61= 1,44
I = 6[6]
, , I
I I (3.68)
I - , .;
- ; = 3
I - , .I = 6 .
I = U/((Z/3)+Z)), . (3.69)
U- , .; U=220
Z - , .; ZT=4,62 . [7, .204]
Zn - , .
Zn = Z0·L, (3.70)
Z0 - 1. , /.;
Z0 = 2,113 / [7, . .1.2. .498]
L - , .; .
Zn = 2,113·0,163=0,34.
I= 220 / (4,62 / 3) + 0,34 =117 .
117 >3 ·6=18
, .
, . . , . . [12. .110]
( 91) 40 .
: , , , , .