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- . . .

G1 74-43 3(3×185) K1 74-43 3×6 3714 G2 3(3×185) L1=60  
4.4-

:

:

S = S1 + S2 (4.26)

 

S =1000*103 =103000 (4.27)

U = Ur = 400

(4.28)

 

 

 

r1, x1-

G1 u G2; r2, x2, r3, x3 - , , , '. , ' , .

:

xl =0,17 / (4.29)

 

, rl =0,003 / (4.30)

 

ֳ :

(4.31)

 

(4.32)

 

3185 2 :

2=0,0073 /, r=0,118 /.

' ,

r2 =0,07/3=0,02 / (4.33)

l , ;

r2 = *10*10-3 =0,2*10-3 (4.34)

 

x2 =0,34/3=0,11 / (4.35)

 

x2 =*10*10-3 =1,1*10-3 O (4.36)

 

(4.37)

(4.38)

x4′ =x1′ + x2′, r4′ = r1′ + r2′,

x4′ =0,34+0,0022=0,3422 (4.39)

 

r4′ =0,07+5*10-3=0,075 (4.40)

,

(4.41)

 

(4.42)

 

z5= (4.43)

 

4 2

x6 =0,101 /, r6 =1,8 /,

x6 =0,101* 40 ∙10-3 =4,04*10-3 O (4.44)

 

r6 =1,8 ∙ 40 ∙ 10-3 =72*10-3 (4.45)

:

(4.46)

 

(4.47)

 

(4.48)

1

x′ = (4.49)

 

r′ = (4.50)

 

(4.51)

:

t = 0 I =2,5

t = 0,01 I =2,3

t = 0,05 I =2,2

t = ∞ I∞ =2,8

(4.52)

I,

(4.53)

1

1 = +

(4.54)

- , ,

- 䳿 , = 0,9;

ΔU- ;

Z- , ;

∆U = I0 ∙ Z6

∆U =2,5*0,17=0,4 (4.55)

 

(4.56)

S -

, S = 60% Pr,

0,3

(4.57)

 

(4.58)




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