12. : P 2 = 630 ; U = 6000 ; cosφ = 0,9 (). - = 16. ; : * d = 1,2 * q = 0,7. - I * f = 1,7. . - = f (θ). - . .
43
1. - : Z = 24; p = 2; a = 4; y = 0,85t.
57
2. 189 . I f = 3,5 . ( ) δ = 1 . - B δ f m .
7. - I * = 1 : H = 80 U = 13,8 ; cosφ = 0,85; ; *σ = 0,16; F * a f = 1,58. .
Ff , | 24240 | 43890 | 50900 | 68140 | 89750 | 114800 |
Ef , | 4620 | 7970 | 8767 | 9644 | 10600 | 11160 |
9. - : U = 9093 I = 6968 ; f 1 = 50 ; cosφ = 0,9; η = 98,2 %. 2 = 84. -: p = 793 ; p f = 643 ; - p = 368 .
10. -: = 200 ; U = 15,75 ; cosφ = 0,85. I * f = 2,6. , - * = * d = 2,28. - . - , - , -. .
12. *2 = 0,65 I * f = 1,1. . - * = * d = 1,9. . , θ. -
, , -, . .
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44
1. - : Z = 54; p = 1; a = 1; y = 0,7t.
2. - : = 2; w 1= 35; k 1 = 0,951, k 1 = 0,954. I = 108 .
7. 3, 4, 5 6 F * f = 0,75 F * f H .
9. - : S = 188,2 ·; U = 13,8 ; cosφ = 0,85; f 1 = 50 . . = 0,512·10 6 . p = 314 .
10. - I * f = 1. : S = 125 ·; U = 10,5 ; cosφ = 0,8; f 1 = 50 . , * = * d = 2,15. . , - . .
12. , : U = 6000 ; I = 71,9 ; cosφ = 0,9. = 12. : () = 22,7 ; () = 19 .
45
1. - : Z = 24; p = 1; a = 2; y = 0,6t.
2. Ff 1m B δ f 1m -. wf = 108; - If = 500 ; γ = 0,727; δ = 34 ; k δ = 1,12. .
7. : = 171 ; U = 15,75 ; cosφ = 0,9. - F * f H = 1,74. Δ U . , .
F * f | 0 | 0,5 | 1,0 | 1,5 | 2,0 |
E * f | 0 | 0,55 | 1,0 | 1,21 | 1,27 |
9. : U = 13,8 I = 8179 ; f 1 = 50 ; cosφ = 0,9. Σ = 3888 . .
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10. , : S = 133,33 ·; U = 13,8 ; cosφ = 0,8.
; - : * d = 0,54; * q = 0,36. - I * f = 1,32. . .
12. - *2 = 0,9. * = * d = 1,72. - I * f = 2,1. . - 1,5 . , θ. , , . - .
46
1. - : Z = 60; p = 5; a = 1; y = 0,8t.
2. . f = 1,38 . f 1 = 50 . ; w 1 = 28. k 1 = 0,965; k 1 = 0,96.
7. (...) (...) . : = 250 ; U = 20 ; cosφ = 0,85. . I * = 1.
Ff , A | 39600 | 79250 | 90300 | 119000 | 158500 | 192000 | 238000 |
Ef , B | 6120 | 11550 | 12950 | 13880 | 14700 | 15150 | 15500 |
U, B | 0 | 3240 | 9020 | 11550 | 12830 |
9. : S = 31,25 ×; U = 10,5 ; cosφ = 0,8; η = 97,7 %. If =476 ; Uf = 164 ; η f = 0,92. : = 183 ; = 44,2 .
10. = 12 U = 6,3 . cosφ = 0,8. , * = * d = 2,09. I * f = 2,54 * = 0,6. . 1,4 . .
12. ( ) k = 1,9. : 2 = 17,5 ; f 1 = 50 ; cosφ = 0,9. 16 . 2 2 = 0,446×10 6 . , .
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47
1. - : Z = 36; p = 2; a = 2; y = 0,85t.
2. f = 2,84 f = 10,4 f 1 = 50 . k 1 = 0,958 k 1 = 0,965. .
7. : = 25 ; U = 10,5 ; cosφ = 0,8. . - : σ = 0,423 ; a d = 3,88 . .
F * f | 0 | 0,5 | 1,0 | 1,5 | 2,0 |
E * f | 0 | 0,53 | 1,0 | 1,22 | 1,28 |
9. 1 = 1,612×10 6 . f 1 = 50 cosφ = 0,9. () = 3034 ; () = 3473 . . cosφ k = 0; 0,25; 0,5; 0,75; 1,0; 1,25 η = f (k ).
10. S = 3,125 · - U = 3,15 f 1 = 50 . , * = * d = 1,77. I * f = I * f . . = 1. 1 = 8×10 3 . , θ. , . .
12. : U = 6 ; I = 562 ; η = 95,2 % 2 = 5000 . .
48
1. - : Z = 48; p = 4; a = 2; y = 0,8t.
2. - W = 62,8 /. - f 1 = 50 . .
7. (...) (...) . : S = 133,33 ·; - U = 13,8 ; cosφ = 0,9. - . I * f = I * f I * f = 1,83.
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I * f | 0,5 | 0,93 | 1,0 | 1,5 | 2,0 | 2,14 | 2,63 |
E * f | 0,54 | 0,95 | 1,0 | 1,22 | 1,3 | 1,31 | 1,35 |
U * | 0 | 0,07 | 0,62 | 0,94 | 1,0 | 1,1 |
9. - : U = 15,75 - I = 21560 ; cosφ = 0,85; η = 97,9 %. = 64, - f 1= 50 . : - p = 3076 ; p = 1945 ; p = 2769 ; p = 650 .
10. - : S H = 29,55 ·; U = 6,3 ; cosφ = 0,9. , * d = 1,0; * q = 0,68. - , - . - .
12. - U = 10 P 2 = 8000 . η = 95,9 % cosφ = 0,9. - = 9. ; - , , - .
49
1. - : Z = 36; p = 2; a = 4; y = 0,85t.
2. - S = 15 ·; - U = 6,3 ; f 1 = 50 ; - p = 1; ; - w 1 = 14; k 1 = 0,917. - .
7. - - . I * f = 0,5 - I = 2880 . : P = 78 , I =3840 ; cosφ = 0,85. - . - .
I * f | 0 | 0,5 | 1,0 | 1,5 | 2,0 |
E * f | 0 | 0,54 | 1,0 | 1,21 | 1,27 |
9. : U = 10,5 I = 1440 ; cosφ = 0,8; f 1 = 50 . p = 24. - . - r =0,0213 . I f = 858 ; - r f = 0,193 ; - η f = 0,85. : p = 138,5 ; -
p = 88,3 ; p = 62,8 . - , ; - .
10. . - : x * d = 1,37; x * q = 0,92. - P *1 = 0,33. (I f = 0). , , -, . - .
12. : - P 2 = 5000 ; U = 10 ; η = 95 %; cosφ = 0,9. - .
50
1. - : Z = 60; p = 1; a = 1; y = 0,8t.
2. - : = 2; - z 1 = 54; y = 22; - w 1 = 18; I = 3200 A. δ= 80 ; k δ = 1,07. .
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7. - I * = 0,65. : = 135 ; U = 13,8 ; cosφ = 0,9. . : x σ = 0,166 x ad = 0,916 . - .
9. - : S = 62,5 ×; cosφ = 0,8; f 1 = 50 . - S p = 843 .
10. - : = 4 ; U = 3,15 ; cosφ = 0,8. ; * = * d = 1,92. - . - . .
12. m / = 1,9. - 2 = 6300 . f 1 =50 . 20 . , , 2,5 . , - .
1
.
. 50 .
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2 |
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U , |
cosφ |
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