5.1
:
: , -, , . .
[ 1] c.239; [ 2 ] c.160
:
. . , .
. , (60-500 \). , .
, . , , .
:
- , () .
- .
- .
- .
- , ( , ).
. .
( ). . ( ), . .
. .
. , .
, .
, .
, . , .
:
1. ?
2. .
|
|
3. .
4. ?
5. ?
5.2
:
. . : , , , .
[ 1] c.249; [ 2 ] c.164
:
, , . , , 2 . ,
. , : , , , , .
, . , , . , , . . , , .
, , .
:
1. ?
2. ?
3. , ?
4. ?
5. .. ?
6. ?
7. ?
5.3
:
: , . . U- .
. .
[ 1] c.270; [ 2 ] c.178
:
:
- ;
- ;
|
|
- ;
- .
, , . .
U- . - I1 1 , 2. U- - : 2 = ( ), 2 = 0,25P2, P2 = 0,5P2
:
1. , ?
2. , ?
3. ?
4. ?
5. ?
6. ?
7. ?
8. ?
9. . . ?
10. .. ..?
11. .. ?
5.4
:
. .
. .
: , , .
[ 1] c.289; [ 2 ] c.186
:
. (, , ), . , .
() , ( ). , . .
, .
:
1. ?
2. .
3. ?
4. ?
5. ?
5.5
:
. . , .
[ 1] c.302; [ 2 ] c.193
:
, , , , .
[2] . .
:
1. ?
2. .
3. ?
4. .
|
|
5. ?
6. , -?
7. ?
8. ?
5
5.1
, 1.
1
43,51, 70, 75 | 44,52, 69, 76 | 45,53, 68, 77 | 46,54, 67, 78 | 47,55, 61, 79 | 48,56, 62, 80 | 49,57, 63, 74 | 50,58, 64, 71 | 41,59, 65, 72 | 42,60, 66, 73 | |
1, 20, 25,35 | ||||||||||
2, 19, 26,36 | ||||||||||
3, 18, 27,37 | ||||||||||
4, 17, 28,38 | ||||||||||
5, 16, 29,39 | ||||||||||
6, 15, 30,40 | ||||||||||
7, 14, 21,34 | ||||||||||
8, 13, 22,33 | ||||||||||
9, 11, 23,31 | ||||||||||
10,12, 24,32 |
.
5.2
1. ().
2. ().
3. () .
4. . ? .
5. . . ?
6. .
7. , = const., ( ).
8. . .
9. . .
10. , ?
11. .
12. ?
13. 3- , ?
14. ?
15. ?
16. . .
17. (..). ? Uk ?
18. ?
19. .
20. .
|
|
21. () .
22. .
23. . .
24. . ?
25. .
26. , ( ).
27. . .
28. . , , .
29. . .
30. - . .
31. . .
32. . .
33. (). .
34. . .
35. U- . .
36. .
37. . .
38. . . .
39. φ, ψ, θ . , . , .
40. , .
5.3
41. , , : R=220 ; U=220; R=0,09 ; E=230 ; n=1500 /.
42. M2, : M=1,25; C=50; =0,015; I=30 .
43. , , - : U=220 , I=40, n=2000 /, =4, N=600, =2, =0,01
44. (C) , : =0,015 ; n=1500 /;U=220; I=20 ; R=0,09 .
45. M2 , : U=220; R=200; I=36 ; η = 90%; n=1500 /.
46. , , , : M2=10 ; η =89%; n =1500 /.
47. , : U=220; R=0,061; R = 0,2; = 50; = 0,015 ( = const).
48. =75 , U=220B.
=0.89. , , , .
49. , , Ia =2I , : Ra=0.1 , U=220 , Ea=210 .
50. , R1=0,2 , : I =30 ; C=50; =0,015 ; R=0,09.
51. S=25* U1=10 0,13 ; 0,6 . cos φ = 0,8; cos φ = 1.
52. E1;E2; , : f=50 ; w1=220; w2=40; max=0,015
53. : Po=40; P=160; U1= 230; U=5,5%; S=230; Io=1,2%. R1=R2; X1=X2. : Rm; Xm; R1; X1; R2; X2
54. ; , : U1=380; U2=36. \.
|
|
55. : S=320 , U1=10 , U2=525 . \ -11. =1.4 . Sc=360 2. = 0.9. .
56. : S=320 , U1=10 , U2=525 . \ -11. = 300 ., I0= 3%I, R1 = 0,8 Om, X1 = 1O. Xm.
57. Sc=400 2. = 0.8; f=50 ; = 1.4 . . .
58. W1= 400. Io=5 A. hc = 50c, 60 . .
59. .
Io= 4A; 1= 0.8 ; R1= 0.2 O; Rm= 2 O; Xm= 40 O. , cosφ, .
60. U2 = 0.4B. W2= 400 , 1,5 . .
61. : P =5.5 kB; U =380B; η = 82%; - Y. 2 = 0.8 η =1.05 η cosφ = 0.79 s = 2%. , Rk (2)
62. , , : W1=210, f1=50 , =0,01, n=1460 /, W2=0,5p, 1=0,93, 2=1.
63. : P =22 , η = 91%, M/ M =1,9, s = 0,04; 2p = 2. : P1, M; M.
64. P=11 M=30 . M / M=2,2. , U=0,6 U, Mc=28 .
65. , , : I=60; U=380 ; cosφ1 = 0.82; η = 90%; I/I = 7.
66. R, n=970 / n=680 / , p=3; R2=0,05 . : R2/s=(R2+R)/ s.
67. P=22; U=380 ; η=92%; cosφ=0,83 , : R1=0,09 ; R2 = 2R1.
68. (P) (P2) , : p = 2; n = 1460 /; f1 = 50 ; I2 = 30 ; R2 =0,06.
69. , :
R1= R2= 0,6 ; X1=X2=1,4 ; U=380 , Y.
70. , P1 = 23,3 ; U=380; cosφ = 0,83; R1 = 0.08 ;
I2= 32; R2= 0,05. P=0,005P1; P=70 , P=40 . Y.
71. : U=10 ; , E0 = 5120 , Xc=0.12 ; f1 = 50 ; p = 2; θ = 270. .
72. , , U1=3500; E0=4000; Xd=0.7; q=0.4; p = 2; θ =300; f1=50 .
73. P = 630 , osφ = 0,8. 12 . .
74. , : U1=10,5; I1=1020; cosφ =0,8; R1=0.08; R=130; I=130 ; dU=2,2 ; =0,8. = 4,3 ; 0,4% .
75. - , U1=10; P=63 ; cosj=0.8; X=0.9 .
76. θ = 300. .
77. : P = 500 , η = 96,5%, cosφ =0,9. U = 10.
78. = 3200 ; U = 10 ; Xq = 50 Om; Xd = 80 Om. . ?
79. (n), : p = 2, f1 = 100 .
80. () , θ = 900, 0 =5600; U = 10 ; Xd = 60 Om.
6
, , , , .
-1 ( )
1.1 : U = 220 , =210 , r=0,5 , η = 85%, n = 1500 /. 1, 2, 2.
:
1.
I =U E / ∑r = 220 210 / 0,5 = 20
∑r ≈
2.
1 = U × I = 220 × 20 = 4400
3.
2 = 1 × η = 4400 × 0.85 = 3740
4.
M2 = 9,55 × P2 / n = 9,55 × 3740 / 1500 = 23,8 *
: 1 = 4400 ; 2 = 3740 ; M2 = 23,8 *
1.2 =20 U=230 , , ∑r; (ΔU=2,5). .
:
1.
I = / U = 20 × 107230 = 87 .
2.
=U0 = U + I ∑r + ΔU = 230 + 87 × 0,12 + 2,5 = 243 .
3.
ΔU = (U0 U) / U×100 =(243 230)/230×100 = 5,65%
: ΔU = 5,65%
-2 ()
2.1 / ; U1=380 , U2=36 , S = 25 *. , , .
:
1.
U1 = U1 / √3 = 380/√3 =220
U2 = U2 = 36
2.
k = ω1 / ω2 = U1 / U2 =220 / 36 = 6,1
3. :
I1 = I2 = S / √3 × U1 = 2500 / √3 × 380 = 37,98
I2 = I2 / √3 = S / √3 × √3 × U1 = 2500 / 3 × 36 = 231,48
: U1 =220; U2 = 36; k = 6,1; I1 = 37,98 ; I2 = 231,48
2.2 I2 = 172 U2 = 400 k = 15. Bmax = 1,5 ; =5 , f=50 . S, w1 w2, Q.
:
1.
max=/(4,44fw)=5/(4,44×50×1)=0,0225
2.
Q=max/(Bmaxkc)=0.0225/(1.5×0.95)=0.0158 2
3.
w2=U2/(4,44fmax)=400/(4.44×50×0.0225)=80
4.
w1=w2k=80×15=1200
5.
S=U2×I2=400×172=68,8 *
: S=68,8 *; w1=1200 ; w2=80 ; Q=0.0158 2
-3 ( )
3.1 380 , 50 , . =180 *, η = 82 %, sφ1 = 0.80:, 2 = 6, s = 4. , 1, I1.
:
1.
n = n1(1 - s) = 1000(1 - 0,04) = 960 /.
2.
= 0,105n = 0,105 × 180 × 960 = 18 144 .
3.
P1 = / η = 18 144 / 0,82 = 22 126 .
4.
I1 = P1 / (m1U1sφ1) = 22 126/(3 × 220 × 0,8) = 41,9 .
: n = 960 /; = 18 144 ; P1 = 22 126 ; I1 = 41,9
3.2 P =10 380 , 50, . n=1455 /, I1=32 cos φ1=0,85. 10=820 I10=7,0; r1=0,25 . , =160 .
:
1.
10=m1I210r1=3× 72× 0.25=37
2. ( )
= 10- 10=820-37=783
3.
= - =383-160=223 .
4. ,
P1 = m1UI1 cos φ1=3× 220× 32× 0.85=17952
5.
∑= P1 - P =17952-15000=2952
6.
η= P / P1 =15/17,95=0,83
7. ( )
P. =∑- =2952-783=2169
8.
P. =0,005 P1 =0,005× 17952= 90
9.
P1 = m1I21r1=3× 322× 0.25=768
10.
P2 = P. - P1 - P. =2169-768-90=1311
: P1 =768 ; P2 =1311 ; = 223 P. = 90
-4 ( )
4.1 : n1 = n2 = 300 /, f1 = 50. ?
:
ω = 2π × n / 60 = 2 × 3,14 × 300 / 60 = 31,4 /
p = 2π × f1 / ω = 2 × 3,14 × 50 / 31,4 = 10
: p = 10
4.2 P =500 , 2=12, η =93,7%; I/ I=5,2, /=1,0; max/=1,9, s=5% ( ) 5%/ =1,3; . : , , , , ( s = 5%).
U = 10 50 , cosφ1 = 0,8.
1.
n1 = 60 ƒ /p = 60 × 50/6 = 500 /.
2.
P1 = P/η = 500/0,937 = 534 .
3.
I1 = P1 /(√3U1cosφ1)) = 534/(1.73 × 10 × 0.8) = 39A.
4.
I = I1 (I/I) = 39 × 5,2 = 203A.
5.
M = 9,55P/n1 = 9,55 × 500 × 10³/500 = 9550 H*.
6. ()
Mmax = M (max/) = 9550 × 1,9 = 18 145 *.
7.
M = M(M/M) = 9550 × 1,0 = 9550 H*.
8. ( 5%)
M5% = M(5%/) = 9550 × 1,3 = 12 415 *.
: n1 = 500 /; I1 = 39A; I = 203A; M = 9550 H*; Mmax = 18 145 *; M = 9550 H*; M5% = 12 415 *
1. . . . . . . 2- ., . . .: . ., 1990. 463.
2. .., .. . . . . . .: , 2000. 256.
3. .. . . .: , 1989. 672 .
4. .. . . . .: , 1975. 504 .
5. .. .. . , . .-.: , 1965, .1..383, 11. .704.
6. .. : . . . . - : . 2003.-160 .