( ), . 5.
, .
(, ).
, , t 0. , , - .. , , .
:
Ud = 50 B;
Id = 80 A;
t 0 = 60 0 .
.
. .
.
4.5.1. :
)
Rd =
)
Pd = Ud Id = 50 ∙ 80 = 4 .
4.5.2. ,
R = Rd ν = 0.625 ∙ 0.037 = 0.023 ,
ν = 0.037, (.2).
4.5.3.
4.5.4.
0 , 0 = 0.5;
% - , (.6).
4.5.5. U 0 = 1 ,
U = 2 U 0 = 2 B
4.5.6.
4.5.7.
Ud xx = Ud +
4.5.8. ...
2 =
4.5.9. :
)
Ia =
)
U m = 2 m =
4.5.10. . . 5. , 50 6 /.
5
t 0 = 40 0 U, / | Ino, | ||||
10 | 25 | 50 | 200 | 320 | |
- | - | - | - | ||
- | - | - | - | ||
- | - | - | - | ||
- | - | - |
, 5 , ( l = 1800). , 400. .
|
|
4.5.11. , .7, l = 120 0 .
, , 60, I, 45 .
, ,
In > Ia.
4.5.12. .
U m = 57.8 B
1
U m = 100 .
, . 6.
6
Id , | Ud, | |||||
. 7.
7
t,0 | |
50 .
5.
.8.
( R 1, R 2, R, R 1, 2, 3); Si; ; , (KU, KI, KP); (R, R).