3.
4.
1. .
:
Q1 = K1K3K5K7Q0, ;
Q2 = (1-1) 234567Q0 / (hd), .
:
1 ,
2 , -
3 ,
4 ,
5 , : 1, 0,23, 0,08;
6 , , (N) ():
<1 6 =1,
>1 K6 = N0,8 N<T;
K6 = T0,8 N>T;
7 , .
Q0 () , .
1, 2, 3 7 2. :
1 =0.18; 2 = 0.025; 3 = 0.04; 7 = 1. ( t= +20C).
V = 1 / 4 = 1 (.3).
5 = 1.
6 , ( N =2.5 .) (), :
= (hd) / K2K4K7;
: h ; ( ) h=0,05 ;
d , d =0,681 /.. (. 2)
= 0.050,681/0.02511=1.362 =82 = 122.
> 1 N> T 6 = 0,8 = 1.3620,8 = 1.28.
Q1 = 0.180.0411100 = 0.72 ;
Q2 = (1-0.18) 0.0250.04111.281100/(0.050.681) = 3.1 .
2. .
(1) (2) .1. [1].
, :
Q1 = 0.72 V =1/ 1 = 3.85
Q2 = 3 V =1/ 2 = 9.18
:
= II + 0.5I
:
I = max (1, 2) = 2 = 9,18 ;
II = min(1, 2) = 1 = 3,85 .
= 9.18+0.53.85 = 11.1 .
, :
= NV
:
N , ; ( N=2.5)
V , /; ( V = 1 / , V=5/ (.5).
|
|
|
: = 52.5=12.5 .
:
= [, ]= .[11,1,12,5]=11,1
: =11,1
3.
min= 1 max=12 :
t.min = Xmin / V=1/5=0.2=12;
t.max = Xmax / V=12/5=2,4=224.
4.
.. . (.1) = 1 22,
.. == 122
5.
SB 2 =R2j0 / 3600
=11,1 
0=1800, :
0,5\ φ=360 , 1\ φ =180 , 2\ φ=90, 2\ φ =45
1. , .
2. :
- , , I , 50% ;
- , ,
III- , (2500 ) 40000 .
3. .
5. .
8=0,081, =11,1 N=2,5 . :
2
