I = f (I) U = const cosφ = const . 4-38.
.
. 4-38. .
, , s φ = const .
, : x σ, xd ( ), xq. I U cos φ.
, : U, I, cos φ. () () (. 4-39):
;
, ,
I .0 , . . 4-39 . 4-2.
. 4-39. () () ( . 4-40 4-41).
, . 4-2, . , .
4-2
( )
0,50 | 1,0 | 1,50 | 2,0 | 2,5 | 3,0 | 3,5 | |||
0,58 | 1,0 | 1,21 | 1,33 | 1,4 | 1,46 | 1,51 | - | ||
0,53 | 1,0 | 1,23 | 1,30 | - |
:
4-40 4-41, U *=1, I *=1 cosj=0,8.
. 4-40. :
25000 (31250 ); 6300 ; 2870 ; cosj = 0,8; 3000 /; = 0,00225; = 0,11; = 1,86 ( xq); = 1,75 ( = 2,36; = 1,39).
. 4-41. :
30000 ; 13 800 ; 1 260 ; cos φ =0,8; 75 /; = 0,005; = 0,11; = 0,81: = 0,70; = 0,49; = 0,38 ( = 1,67, = l,25).
. 4-39 , .. . .. .
.. j, . 4-41, :