electrotechnology report
description
Transcript of electrotechnology report
:
..: 5581: 1/ : 27/4/2009 6 6 , . .
. , (- ), . . , , . , , . . , , 110 volts, 220 volts 380 volts, ( 3 ).
. Watts Volts Volts Volts Volts
14301,862262131313,02
2679*2,962262052120,72
10314,52224,619232,631,64
*: 7 Ohm. . : 1)226-213=12, 2)226-205=21, 3)224,6-192=32,6.
. : 1)1,86*7=13,02, 2)2,96*7=20,72, 3)4,52*7=31,64. , . ( , 0,02), . 12 . 0, . 5 , . , 1,5mm2 10 .
, , , . , :
(kwatts)0,37
Cos0,93
(volts)230
(A)3
*: cos
:
voltsA
watts. (). (. )
2211,242130,750,9319,35%
228,91,422170,680,9326,88%
*:
:
[(0,93-0,75)/0,93]*100%=19,35%
[(0,93-0,68)/0,93]*100%=26,88%
. , , .
380 Volts 50 Hz, 380 volts, 0,85 0,8 kwatts.
4 A2,5 mm2
4 A2,5 mm2
110 volts, 220 volts 380 volts 5%, 50%, 95%. I = V / R, .
5%
110 volts220 volts380 volts
1,15 * 103 0,96 * 103 0,75 * 103
m96229507
50%
110 volts220 volts380 volts
2,3 * 1031,77 * 1031,45 * 103
m48124262
95%
110 volts220 volts380 volts
3,8 * 1033 * 1032,21 * 103
m2973172
25 mA , 29 mA, 110 volts .
*: 110 volts , 220 volts 380 volts . :17. , (, .). . , , . , .
18. I=P/V, V=220volts, P I . : =2*(100/220)+2*(150/220) => =2,27 . , 0,75mm2 , . 1,5mm2 10 .
19. , . , .
20. , , . 21. , . , , . 4: =6,7 2,5mm2 10. 10: =15,6 , 2,5mm2 20 ( -). 30: =45 , 10mm2 50 . : =1,25*45 + 15,6 + 6,7=78,55 . 35mm2 100 .22. () . 23. , . , , , .
24. , . _1302472796.xls2
1313.02
2120.72
32.631.64
(volts)
(volts)
(watts)
(volts)
1
(volts) (volts)
4301313.02
6792120.72
103132.631.64
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00
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(volts)
(watts)
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