, . . 1. S=1000 * = S / S * =1000 / 550 = 1,818.. *= L S / U2 * = 0,2 4 10,52 / 10,52 = 0,8.. X=U/100* U2/S=5,5/100*10,52/0,63=9,625 2. I(3) -1= U /=10,52 / 0,2=52500 I(3) -1= U /++ =10,52 / 0,22+0,2+ =140 I(3) -1= U /++ =10,52 / 0,2+9,625+ =292 |
1.
:
) . 4.
I=I(3). - (=1,1-1,3);
I= I(3).=1.3292=321,2
) ,
I. = S./ √3 U. =63000/√310,5=34,68
I= I. =334,68=104,4 =3-5, -40.
2.
, ..
1.
I. = 0,7I.= 0,7273=191
I = I../=1,12,5191/0,85=618
( = 1,1);
(= 2,5);
( = 0,85).
2.
= I(2) -2/ I = 21700/618=35,1> 1,5
1.
I= I./,
( = 1,05);
( = 0,85)
I= 1,05273/0,85=337
2.
= I(2) -2/ I = 21700/337 = 64,3
. . 6,3 , .
. . .
|
|
1000
, | U, | I, | I/I | cosj | h | |
-2500-2 | 6,2 | 0,9 | 0,92 |
5000 .. .
1.
I= I,
I/I = 6,2; I. = 166 ; n = 100/5 = 20
I = 6,2 166= 1029,2 ;
(= 1,8 -40).
I= I = 1,8 1029,2=1852,56A
2.
I = I/n
(= 1,73 ..);
I = 1,73 1852,56/20 = 160,2
3.
= I(2) -3/ I = 12000/1852,56= 6,4
I= I/, = 1,05; = 0,85
I= 1,05 166/0,85 = 205
U = (0,6-0,7) U
U = 0,7 10= 7
: I 10 2000 I 5 2000 . .
5 . , - , . - -51 -1. , -40, . -1, -51 , , , (N) , , .
I³I= I,
( = 1,2);
, ( = 2,5);
I .
I = I + I,
I
( , .. S < 3 ;
I ,
;
I = I.
I = I l m,
I 1 (I = 1,33 /);
l (l = 2 );
m (m = 2).
I = 1,33 2 2 = 5,32 ;
|
|
I = 1,2 2,5 5,32= 15,96>5A