:

..: 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

1

00

00

00

(volts)

(volts)

(watts)

(volts)

2

3