, 10 , :
(1). .
1 2
2 3
3 4
.
. ()
U = 10,5 .
, .
: S = 250 *,
∆P.. = 3.7, U = 4,5% :
:
:
Z =
=2 =20
R = R * *
1.
R1 = 1.38 * 0.345 *()2 = 328
1 = 0,4 *0,345 * 689,06 =95
R2 = 0.64 * 0,188 * 689,06 = 82
2 = 0,4 * 0,188 * 689,06 = 51
2.
R3 = 1.38 * 0,15 * 689,06 = 142
3 = 0,4 * 0,15 * 689,06 = 41
R4 = 0.64 * 0,325 *()2 = 143
4 = 0,4 *0,325 * 689,06 =89
3.
R5 = 0.85 * 0,2* 689,06 = 117
5 = 0,4 * 0,2 * 689,06 = 55
R6= 0.45 * 0,48* 689,06 = 148
6 = 0,4 * 0,48 * 689,06 = 132
2, 3, 4, :
Z∑2 = =448
ZΣ3
ZΣ4
2, 3, 4, .
=
=
=
,
= *
=
= I ..(3)4
0,4 1.
=
.
2, 3, 4
.
[1]
=0,487
- .
=
[1]
.
1.
Zn1 = 3.3 * 0.345 = 1.1 /
Zn2 = 1.77 * 0,188 = 0.33/
2.
Zn1 = 3.3 * 0.15 = 0.4/
Zn2 = 1.77 * 0,325 = 0.5 /
3.
Zn1 = 2.9 * 0.2 = 0.5 /
Zn2 = 1.5 * 0,48 = 0.75 /
8.
.
1 , , .
|
|
|
, 1,3 100 . , 1,25 100 .
.
1.
.
I. max=
I. ≥ 1,1 * 67.5
I. ≥ 74.3
I.. ≥ 1,25 I max
I.. ≥ 84.4
:
3114/1
I= 100
I..= 85
I... = 3* I= 3*100= 300
1.
2 .
=
1.84 > 3
, -571 .
I=0.7*6.7.5=43.7
. = =1.9
>1.5 - .
2.
.
I. max =
I. ≥ 1,1 * 48.8
I. ≥ 53.7
I.. ≥ 1,25 I.max
I.. ≥ 67
:
3114/1
I= 100
I..= 70
I..= 3* I= 3*100= 300
3 .
=
1.6 > 3
- , -571 .
I=0.7*48.8=34
. = =1.8
1.8>1.5 -
3.
.
I. max =
I. ≥ 1,1 * 63.8
I. ≥ 70.2
I.. ≥ 1,25 I max
I.. ≥ 80
:
3114/1
I= 100
I..= 85
I..= 3* I= 3*100= 300
3 .
=
1.7< 3 , -571 .
I=0.7*63.8=44.7
. = =1.8
> 3 - .
