G ,
F , 2
R ,
- .
(1)
- , dt
- , .
,
- ,
k , .
(1)
(2)
(3)
(4)
(4) ,
(5)
(4) ,
(6)
t = 0, θ0 = 0, (6)
(7)
(5) I1 I2
(8; 8)
(8) (8)
(9)
υ | ||
/ , , | 105 0 | |
, , | 130 0 | |
, , | 180 0 |
90 0 | 35 0 | |
75 0 | 35 0 | |
75 0 | 35 0 | |
: | ||
105 0 | 25 0 | |
130 0 | 25 0 | |
110 0 | 25 0 |
F .
I= (1)
So=S=S1=S2 .. S1=S2, r =
S1=r2 S2=h
: (80 6)2, (60 8)2 Ø = 25 50/43 , Θ= 450, , ( =0,004):
ρΘ= ρο (1+ Θ)= 1,75·10-4 (1+0,004·45)= 2,07·10-4·
I= =
2 | . /2 0 | . . R/l | I, A | Iڤ/I0 | |
80 6=480 | 0,75*10-3 | 17,2=2*(8+0,6) | ρΘ*1/S | 1,217 | |
608=480 | 0,75*10-3 | 13,6=2*(6+0,8) | ρΘ/S | 1,185 | |
*252*1/4=490,8 | 1,0*10-3 | 7,92= *2,5 | ρΘ/S | 1,0 |
.
I= ,
- , /2* , , .
, , , 25-28% 15-17% .
|
|
.
. V . = 0,2 /, V . =2 /c 10 /, 3-5 .
R .
L, Cu Fe. , R, .
f = 50 HZ
Al- 12,3
Cu- 9,4
Fe- 1,8