26
1. - : Z = 42; p = 1; a = 1; y = 0,65t.
2. . - f = 2,21 . - f 1 = 50 . ; - w 1 = 8; k 1 = 0,93. , I = 3660 .
7. (...) (...) : S H = 134 . ; U = 11 . . a d I * f = I * f I * f = 1,8.
I * f | 0,5 | 0,94 | 1,0 | 1,5 | 2,0 | 2,14 | 2,6 |
E * f | 0,53 | 0,96 | 1,0 | 1,22 | 1,3 | 1,31 | 1,35 |
U * | 0,06 | 0,61 | 0,94 | 1,0 | 1,1 |
9. : - U = 7,97 ; I = 5228 A; cosφ = 0,8; f 1 = 50 . : - ( ) p = 376,7 ; - f = 337,1 ; p = 243,5 ; = 439,2 . - ; - 1 1 . .
10. : = 115 ; U = 11 . - : * d = 0,86; -
* q = 0,54. .
12. 2 = 1,273·10 4 . : U = 6000 ; η = 93 %; f 1 = 50 ; cosφ = 0,9. = 8. ; -, ; , - .
27
1. - : Z = 48; p = 2; a = 1; y = 0,8t.
2. - . -: S = 40 ×; U = 6,3 ; f 1 = 50 . , , If = 178 . - . w 1 = 8; k 1= 0,93. wf = 128. (...) f = f (Ff); .
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F * f | 0,5 | 1,0 | 1,62 | 2,1 | 2,7 |
F * f | 0,58 | 1,0 | 1,21 | 1,33 | 1,4 |
7. - : σ = 0,12 ; - a d = 1,72 . 2.
9. , - : f 1 = 50 ; S = 253 ×; η = 98,3 %; - cosφ = 0,85. p = 22.
10. - - cosφ = 0,85. * = * d = 2,62. , - - . - .
12. : 2 = 630 ; f 1 = 50 . m / = 1,7. = 6. , - , 1,8 . , - .
28
1. - : Z = 24; p = 2; a = 1; y = 0,8t.
2. f 1 = 50 - = 25. - - .
7. (...) (...) . : - P H = 250 ; U H = 20 ; cosφ = 0,85. - . * ( *σ).
Ff, A | |||||||
Ef, B | |||||||
U, B |
9. -: U H = 11547 ; I = 16980 .
r = 1,48410 3 . 1 = 1,61210 6 . If = 3611 A Uf = 451 ; η f = 0,95. - : p = 966 ; p = 692 ; p = 1760 .
10. : S H = 1111 ·; U H = 24 ; - cosφ = 0,9. ; - * = * d = 2,9. - P *1 = 0,7. I * f = 2,2. . - . -, . - .
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12. -: U H = 10 ; I H = 670 ; η = 95,8 % - P 2H = 10000 . - , - .
29
1. - : Z = 48; 2 p = 4; a = 2; y = 0,75t.
2. - . f = 2,81 . f 1 = 50 . ; ; - 2 p = 2; a 1 = 1. z 1 = 42; 1 = 17. .
7. , - 3, 4, I * = 0,8. .
9. - 1 = 25,257×10 6 . : f 1 = 50 ; - U = 15,75 ; cosφ = 0,9. . 84 . : p = 793; p = 493 ; pf = 643 ; p = 837 ; p = 368 . , , .
10. - U * = 1 - cosφ = 0,85. I* f H = 3,05. - * = * d = 2,51. - , - -. θ .
12. : U = 6000; I = 440,4; cosφ = 0,9. : p = 52 ; - p = 67,5 . - k = 0; 0,25; 0,5; 0,75; 1,0; 1,25. .
30
1. - : Z = 42; p = 1; a = 2; y = 0,65t.
2. - - : f 1 = 50 ; w 1= 14; p = 1; k 1= 0,956; k 1= 0,956; I H= 4200 .
7. (...) (...) F * a f I * = 0,5. : S H= 125 · - U = 10,5 ; .
Ff, | |||||||
Ef, | |||||||
U, |
9. : - S H= 31,25 ·; U = 10,5 ; cosφ = 0,8; f 1= 50 . . - : p = 143 ; - p = 129 ; pf = 72 ; p = 208 ; p = 37 . - 1 , -. - cosφ k = 0; 0,25; 0,5; 0,75; 1,0; 1,25.
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10. - I * f = 1,5. - : S H = 888 ·; U = 24 ; cosφ = 0,9; f 1= 50 . , - * C= * d = 2,44. - . - , - -. .
12. 2 : U = 10 ; I = 829,6 ; cosφ = 0,9. (-) p = 180 ; () - p = 237 . = 14.
31
1. - : Z = 30; p = 1; a = 1; y = 0,7t.
2. - W = 78,5 /. - f 1 = 50 . () .
7. - I = f (Ff) - : *σ = 0,11 - * a d = 1,73. : P = 100 ; - U = 13,8 ; cosφ = 0,8. . .
Ff, | ||||||||
Ef, |
9. = 40 M 1 = 22,855·10 6 . η = 98,05 % - cosφ = 0,9. f 1 = 50 . : - p = 847 ; p = 653 . - .
10. - : P = 176 ; U = 13,8 ; I = 8170 . , -: * d = 0,61; * q = 0,53. . - .
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12. - P *2 = 0,9. I * f = 2,1. * d = 1,5. . - U * = U * = 1 - . -
, , - . , . , P 2, - .
32
1. - : Z = 60; p = 5; a = 2; y = 0,85t.
2. Ff 1m B δ f 1m - = 1. δ = 55 ; k δ = 1,11. - γ = 0,67; wf = 112. If = 725 . .
7. 3, 4, 5 6 F*f H .
9. : S H = 31,18 ·; U = 10,5 ; f 1 = 50 ; cosφ = 0,85. = 20 . M H = 1,699×10 6 . = 126 . .
10. - = 63 U = 10,5 f 1 = 50 . ; * d = 2,31. I * f = 1,4. .
M 1 = 0,15×10 6 . , . , , . .
12. M 2 = 10 4 . : I = 37 ; U = 6000 ; cosφ = 0,9. 2 = 20. , , .
33
1. - : Z = 24; p = 2; a = 2; y = 0,8t.
2. : = 1; - z 1 = 42; y 1 = 17; a 1 = 1. I = 2400 . - δ = 55 ; k δ = 1,11. - .
7. (...) I * = 1. : S H = 264,7 · U = 15,75 ; ; * a d = 0,86 * d = 1,07. . ... , If = 720 .
I * f | 0,5 | 1,0 | 1,5 | 2,0 | |
E * f | 0,54 | 1,0 | 1,22 | 1,28 |
9. : U = 15,75 ; I = 21600 ; cosφ = 0,85; f 1 = 50 . 64 . Σ = 10,725 .
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10. - . -: = 26,5 ; U = 10,5 ; I = 1715 . - . - : * d = 1,2; * q = 0,75. I * f = 1,74. .
12. - m / = 1,65. : 2 = 2000 ; f 1 = 50 ; cosφ = 0,9. M 2 = 1,273·10 4 . 2 . , . , , . , .
34
1. - : Z = 36; p = 2; a = 2; y = 0,8t.
2. f = f (Ff) - . : - U = 13,8 ; f 1 = 50 ; w 1 = 14; - k 1 = 0,913; . - .
Ff , A | 2,42·10 4 | 4,39·10 4 | 5,09·10 4 | 6,81·10 4 | 8,98·10 4 |
f , | 1,618 | 2,81 | 3,068 | 3,38 | 3,71 |
7. - I * = 1. S H = 100 ·. 2, -.
F * f | 1,8 | 2,26 | 3,0 | 3,36 | 4,16 |
U * | 0,5 | 1,0 | 1,1 | 1,2 |
9. - : S H = 7,5 ·; U = 6,73; cosφ = 0,8; η = 97,44 %; f 1 = 50 . . : = 47,3 ; = 13,4 . If = 243 ; rf = 0,42 ; η f = 89 %.
10. . : - * d = 1,21; * q = 0,84. *1 = 0,5. (I * f = 0). , .