-
.
: , , , .
..
022
.
()
1
U Y/Y. , , 1: S; U1; U2; U; ( ) p. , I0 ( % I1) p0 cos 2.
: S = 63 U1 = 20 U2 = 0,4 U = 5.3 % I0 = 2.8 0 = 290 = 1280 cos = 0,8 | 1. Ii I2, U1 U2, I0 . |
2. , :
IA =IH =I UH = U
IH1= I1 =1,8
IH2 =I2 =91 A
:
Z = U/ I1=613/ 1,8=337
..
337-132 =310
..
R=R1+R2 X=X1+X2
R/2 /2
- .
3. ,
= 0; 0,25; 0,5; 0,75; 1,0; 1,25;
4. U1=const cos .
Uka, Uk .
|
|
= 0;0,25;0,5;0,75;1,0;1,25. . ∆U1=f(β).
∆U1%=0*(2*0,8+5*0, 6)=0%
∆U1%=0,25*(2*0,8+5*0, 6)=1,2%
∆U1%=0,5*(2*0,8+5*0, 6)=2,3%
∆U1%=0,75*(2*0,80+5*0, 6)=3,4%
∆U1%=1,0*(2*0,8+5*0, 6)= 4,6%
∆U1%=1,25*(2*0,8+5*0, 6)= 5,8 %
U2=f(β) U1=const cosφ=const U2 ..
U2i= U2%-∆UI%
U2=100-0=100% U2=100-1,2=98,8%
U2=100-2,3=97,7% U2=100-3,4=96,6%
U2=100-4,6=95,4% U2=100-5,8=94,2%
.1.1.2. 1.1.3
2
U=380
. , :
; I; n ; cos . I0, R1 200, 0, I, U.
: =7,5 I=15 n=1455/ =83% s =0,83 R1=0,39 I0=18.7 0=460 =871 U=53 | .(. 1.2.3; . 1.2.4.) =3000/n=3000/1460=2 1. I0 U |
2. I U
15×
3. ,
4. I U
5. R1, 750 .
6. . :
7. R2/, :
R2/= R- R1=1,9- 0,47=0,82
( 1.2.1.)
1. , . U.
2. mi / , =I/mi 200-250
=21,6 mi =108/5=21,6/
3. I0. U , ( 0) =I0/mi . h, .
=6,1/5=1,22
4. I. U, =I/mi =21,6.
5. , . h 2, . 5. , . h 2, .
|
|
6. .
I , ( ) , =I/mi=15/5=3
, , ,
I0=miOH=5*1,22= 6,1
I2=mi=2,5*5=12,5
I1=mi=5*3=15
7. , (-), , :
I1a=mi=5*2,6=13
I1p=mi=5*1,5=7,5
8. 1. :
1=3UI1cos
mp=3U1m1=3×5×220=2200 /
P1=mp=2200×2,6=5,72
9. 2. , , 0. , , - , . (n-0) , , 2=0.
2=mp.=2200*1,7=3,74
10. . . , 0. . , . 2; 3 ,
:
=
11. : cos of . of
100
cos
12. . s , 0 0Q, . Q Q . Q 100 , I/2 . I/2 ( ) s. .
13. . =2/1. 1 2 :
1= mp 2 = mp, = /.=1,7/2,6=0,6 5
∑= mp ×=2200*0,9=1980 :
md =2200*0,1=220
( , - , )
mcd=2200*0,1=220 ;
mpbc=2200*0,7=1540 .
|
|
14. . , S=1(100%), KK2, =m2,=14*7,2=100,8 , , I = mi×= 5×21,6=108
, :
15. . . 2 () q. q . qe ,
m=mm qe=14*9,8=137
2 (..). :
n , /; , ; I1- , ; 1- , ; - , %; cos - . :
2i = 0; 0,25; 0,50; 0,75; 1,00; 1,25; .
, , , 2i. , 2i , 2= b = /m. Hh. , . 2i , : (0; 0,25; 0,50; 0,75; 1,00; 1,25) Db.
ni :
ni = n1(1-Si),
Si i , ;
n1 , n1 = 60f1/p.=60×50/2=1500 /
f = 50 = 2 : 3000,1500,1000, 3000/ /. n n1 S = (2 6) %, ..
n = n1(1 S).
ni, Mi, I1i, 1i, I cos 1 2i , . 150 * 150 .
1