(t)=Um sin(ωt + φ) , f =50 . , . .
:
| - | Um, | φ, | R1, | R2, | L1, | L2, | C1, | C1, |
| 127,2 | 190,8 | 39,8 | 53,0 |
:
1) ;
2) ;
3) ;
4) ;
5) , .
:
:
ω = 2πf;
XL1 = ωL1 = 2∙3,14∙50∙0,1272 = 39,941 ;
XL2 = ωL2 = 2∙3,14∙50∙0,1908 = 59,911 ;
;
;
. .
, :
= j ∙ X1 = j ∙80,018 = 80,018∙ e j ∙ 90 ;
= R1 + j ∙ XL1 = 40 + j ∙39,941 = 56,53∙ e j ∙ 44,96 ;
= R2 + j (XL2 XC2 )= 60 + j ∙(59,911 60,089) = 60 j ∙0,178 = 60∙ e j ∙ 0,17 ;
, :
.
:
B;
, :
;
B;
A;
;
:
i = Imsin (ωt+φi), Im ( , 
),
φi ( ).
i = 3,074∙ sin (314 t + 156,8) = 4,347∙ sin (314 t + 156,8) A;
:
,
, P = 274,01 ; Q. = 639,32 ;
:
;
:
274,01 ≈ 274,005 ≈
639,32 ≈ 640 Q ≈ Q
, , , . , .
, 
:
UAB = I1XC1 =3,074∙80,018=245,975,
,
UBC = I2R1 = 1,714∙40 = 68,56 ,
,
UCF = I2XL1 = 1,714∙39,941=68,459 ,
,
UBD = I3XC2 = 1,615∙60,089=97,044 ,
,
UDK = I3R2 =1,615∙60 = 96,9 ,
,
UKF = I3XL2 = 1,615∙59,911 = 96,756 ,
,
,
,
|
|
|
,
.
, (+1) , . , , 
A (+1) 156,8◦ l2.
, . , :
;
90;
90.
. , φ = 0. . B . UAB A 90˚ I. UAB B. UBC c I2. UBC UCF 90˚ I2. .
2- 
, , F A, . :
;
8. .
.
:
;
;
, ;
;
.
, , .
