- ,
- R1; R2,
- Ax;
- (0-1);
- V (0-600);
- .
1. .
2. U1 . U2 , , .
3. , .2. . 1.
1
U1 | U2 | I | U=U1-U2 | P1 | P2 | P=1-2 | ||
% | ||||||||
1 | ||||||||
2 | ||||||||
3 |
4. , .
5. P = f (I), P = f (I), = f (I).
6. .
______________________________________________________
.
- ?
_____________________ ______________
- ?
____________________________
_______
__________ ___________ (_________________)
9. 9 .
, .
.
.
i = I ∙ Sin ωt u = U ∙ Sin ωt
U = U /√2 I = I /√2
( ) P = UI = I2R ()
R = P/I2
, , .
↑ω
,
I = U/r.
.
i = I ∙ Sin ωt u = U ∙ Cos ωt
XL = ω∙L
QL=UI=I2∙ω∙L ()
, , , ().
|
|
, , , , φ = π/2.
:
I = U/XL = U/ωL.
.
- ;
- Zk;
- W;
- (0-1);
- V(0-600);
- .
1. :
2. ( ). , , . 1.
1
. | |||||||||||
U | I | P | Z | R | XL | L | cos φ | UR | UL | Q | S |
3. . 1. ( : Z=U/I; R=P/I2; XL=√(Z2-R2); L=XL/ω, ω=2πf (f=50 ); cos φ =R/Z; UR=U∙cos φ; UL=√(U2-UR2); Q = UL ∙ I; S =U ∙ I).
4. . ( ). ( 10 = 1 ), , , 90. . , , , .
5. . , , .
______________________________________________________
_________
_________
_________
_____________________________________________
__________ ___________ (_________________)
10. 10 .
:
.
.
1. , .
2. .
3. .
|
|
4. .
5. 2.
6. ( ).
.
1. I = 10 .
2. P = 600 .
3. f = 50 .
4. (U) 1 .
1
U; |
.
: I = 10 , P = 600 , f = 50 , U = 100 .
1.
Z = U / I = 100 / 10 = 10 .
2. .
R = P / I2 = 600 / 100 = 6 .
3. .
4. .
L = X / (2πf) = 8 / (2π ∙ 50) = 0,025 .
5. .
S = U I = 100 10 = 1000 .
6.
7. .
φ = arctg(X / R) = arctg(8 / 6) = 53