, ,
I = (E - U)/ΣR.
> U, I , (.). , . . .
U = E - I ΣR
< U, I . , . . n. (.)
U = E + I ΣR,
I , .
,
U∙I = E∙I + I2∙ΣR,
U∙I , I2∙ΣR , E∙I .
E∙I = = ∙ω
U∙I = ∙ω + I2∙ΣR,
, ω = 2πn/60 .
, . . , U∙I. , , , I.
.
n = Ea/(ce∙)
n = (U - I∙ΣR)/(ce∙),
.
.
.
( ) , ; , , " ".
.
:
1) , ;
2) , ;
3) , .
, . . , , .
, ( , )
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Ia = U/ ΣR,
ΣR ( ). ΣR , .
10 U = 110 , I = 108 ΣR = 0,08 . , ,
Ia = U/ ΣR = 110/0.08 = 1375, ,
. . 13 .
. r, ,
Ia = U/(ΣR + r),
. , , .
. ; ... Ea. " ", ; " ", , ... , , . -... ... . X. . . .
Ia = (U Ea)/(ΣR + r)
... , , . . . , ...
, ,
Ia = (U Ea)/ΣR
.
.
I ΣR 5 10% U, I = U /ΣR = (10 ÷ 20)I, . ( ), ΣR .
. n = 0 I = U/(ΣR + r). r - ,
I = (1,4 ÷ 1,8) I, I = (2 ÷ 2,5) I.
.
(. ), r ; m. R. , I . , I = (U E)/(ΣRa + r). min , m. 5 min.
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, , 6, 5, 4, 3 2 (. . ) 1. . = 0,5 (m + min) = const, . (.). , ( m - min). .
I (. ), . . . = - , .