, 2016
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1. : =0; n=950 /.
=800 ∙; n=900 /.
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2. : =0; n=950 /.
=800 ∙; n=590 /.
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3. : =0; n=950 /.
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=-800 ∙; n=1100 /.
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4. : =0; n=0 /.
=-800 ∙; n=560 /.
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5. : =0; n=-950 /.
=-800 ∙; n=560 /.
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6. : =0; n=800 /.
=870 ∙; n=730 /.
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7. : =0; n=800 /.
=870 ∙; n=590 /.
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8. : =0; n=800 /.
=-870 ∙; n=900 /.
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9. : =0; n= 0 /.
=-870 ∙; n=450 /.
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10. : =0; n=-800 /.
=-870 ∙; n=450 /.
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11. : =0; n=900 /.
=700 ∙; n=850 /.
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12. : =0; n=900 /.
=700 ∙; n=650 /.
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13. : =0; n=900 /.
=-700 ∙; n=980 /.
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14. : =0; n= 0 /.
=-700 ∙; n=510 /.
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15. : =0; n=-900 /.
=-700 ∙; n=530 /.
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16. : =0; n=900 /.
=-700 ∙; n=980 /.
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17. . .
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19. .
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21. .
22. .
23. .
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24. .
25. .
26.
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28. , . .
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36.
37. , G = 20000 , D = 1,6 , GD = 90 /2, GD = 6,0 /2, GD = 450 /2, GD = 50 /2, tp = 4 , = 16, . . . h1 = h2= h=0,95, n= 735 /.
38. , G = 100000 , D = 2,0 , ... h1 = h2= 0,9, 1= 2 = 8, n = 960 /, Z1 GD =3600/2 Z2 Z3 GD =7800/2, GD = 98000 /2 tp = 10 . .. . h= 0,9.
39. . GD = 200 /2, GD = 400 /2, - GD = 800 /2. = 2, = 5. t = 5 , n = 1440 /, = 500 /2, . . . h= 0,92. .
40. Gr = 40000 . , , : 6 ../, 6,5 ∙/. GD = 420 /2. = 28; . . . h = 0,85, ... h =0,95; R =1,0. .
41. , : Gr = 10000 ; Vn = 3,6 /, n = 750 /, GD =31,4 /2 ; GD = 314 /2 , , GD = 19,6 /2, D = 500 , . . . h= 0,8; t = 10 , . . . h= 0,85.
42. 6 , , , =1,0 ; . . . h1 =h2 =h = 0,95; 1 = 2= 7; Gr = 40000, Vn = 0,5 /.
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43. , , Z2 GD = 32000 /2, Z1 GD = 4800 /2, n= 490 /, G =2,4; Gr =80000, = 10.
44. , Gr =30000, Vn = 5 /, D =2,0 , . . h =h =0,8; n = 470 /, I = 1000 ∙2, GD = 600 ∙2; t = 8 .
45. , Gr = 60000 , D = 2,0 ; . . . h =h =0,92, = 10.
46. : = 25 , V= 220 , I = 125 , n= 980 /, R = 0,148 . , , n =400 / I1 = 105 . .
47. : = 25 , V= 220 , I = 125 , n= 980 /, R = 0,148 . , , n1 = 500 /. I1 = 105 . .
48. -101 : = 100 , V = 220 , I = 508 , n= 1500 , . . . - h = 89,5%. , R = 2,48 .
49. -92 : = 75 , V = 220 , I = 361 , I = 1500 /., h =89,8%. 1=, 2 = 0,9 = 0,7 .
50. = 650 /, n = 1470 , , , GD = 120 /2, = 250 /, = 120 /. .
51. , = 105 , n =960 /, , , - GD = 2000 /2. - = 0,8, = 1,8 ..
52. , , n = 1465 /, = 1570 /, , , - = 750 /, , , - GD = 780 /2.
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53. 200 :, , , I = 4,0 //2, n = 940 / , , - .. =320/.
54. , = 100 , , , -GD =360/2, = 0,8 = 1,6 , n= 975 /.
55. , 1 = 10 , t1= 10; 2 = 12 , t2= 12, 3 = 11 , t3= 12, 4 = 13 , t2= 10, 5 = 9 , t5= 10. . n =980 /.
56. , : 1= 350 /, t1 =25, 2 = 1000 /, t2= 6 ; 3 = 300 /, t3 = 200. n =1475 /.
57. : F1 = 50000 , F2 = 35000 , F3 = 30000, t1= t2 =15, t3 = 30, t = 12 , D =0.3 , = 12,0; . . . h = 0,9, n = 485 /.
58. = 100 , n = 1470 /, V = 660 . 2 = 4; λ= 1,8. , , S, S, n0.
59. : V = 380 , = 10 , h = 0,87, sφ= 0,8, I/ I = 6, n= 1460 /, / = 1,3; λ = 2,5, = 2 . , , , , .
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- .., .. . -.: , 1987, 176 .
- .. . .: , 1970.
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