Obliczenia Fizyka.docx

1)Wyznaczanie przekładni transformatora:

I               U1=16,25 [V], U2=2,225 [V]

II              U1=16,50 [V], U2=2,259 [V]

III              U1=17,23 [V], U2=2,360 [V]

IV              U1=17,90 [V], U2=2,451 [V]

V              U1=18,78 [V], U2=2,572 [V]

VI              U1=19,25 [V], U2=2,637 [V]

VII              U1=20,17 [V], U2=2,762 [V]

Przekładnia transformatora:

k=U2/U1

k1=2,225V/16,25V=0,1369

k2=2,259V/16,50V=0,1369

k3=2,360V/17,23V=0,1370

k4=2,451V/17,90V=0,1369

k5=2,572V/18,78V=0,1370

k6=2,637V/19,25V=0,1370

k7=2,762V/20,17V=0,1369

wartość średnia k

kśr=k1+k2+k3+k4+k5+k6+k7/7

kśr=0,1369+0,1369+0,1370+0,1369+0,1370+0,1370+0,1369/7=0,1369

2)Wyznaczanie sprawności transformatora:

P=U*I [W]              ƞ=U2*I2/U1*I1= P2/P1

I              U1=16,37V , I1=13,93mA

              P1=16,37V *13,93mA=228,034mW

              U2=2,095V, I2=86,9mA

              P2=2,095V *86,9mA=182,056mW

              Ƞ=182,056/228,034=0,80=80%

II              U1=16,54V, I1=10,91mA

              P1=16,54V*10,91mA=180,451mW

              U2=2,155 V, I2=63,5mA

              P2=2,155V*63,5mA=136,842mW

              Ƞ=136,842/180,451=0,76= 76%

III              U1=16,61V, I1=8,52mA

              P1=16,61V*8,52mA=141,517mW

              U2=2,194V, I2=44,7mA

              P2=2,194V*44,7mA=98,072mW

              Ƞ=98,072/141,517=0,69=69%

IV              U1=16,68V, I1=7,13mA

              P1=16,68V*7,13mA=118,928mW

              U2=2,228V, I2=33,39mA

              P2=2,228V*33,39mA=74,393mW

              Ƞ=74,393/118,928=0,63=63%

V              U1=16,74V, I1=6,22mA

              P1= 16,74V*6,22mA=104,123mW

              U2=2,250V, I2=25,38mA

              P2=2,250V*25,38mA=57,105mW

              Ƞ=57,105/104,123=0,55=55%

VI              U1=16,80V, I1=5,60mA

              P1=16,80V*5,60mA=94,08mW

              U2= 2,264V, I2=19,63mA

              P2=2,264V*19,63mA=44,442mW

              Ƞ=44,442/94,08=0,47=47%

VII              U1=16,84V, I1=5,01mA

              P1=16,84V*5,01mA=84,36mW

              U2=2,280V, I2=13,75mA

              P2=2,280V*13,75mA=31,35mW

              Ƞ=31,35/84,36=0,37=37%

VIII              U1=16,90V, I1=4,65mA

              P1=16,90V*4,65mA=78,585mW

              U2=2,294V, I2=9,80mA

              P2=2,294V*9,80mA=22,481mW

              Ƞ=22,481/78,585=0,29=29%

IX              U1=16,92V, I1=4,40mA

              P1=16,92V*4,40mA=74,448mW

              U2=2,301V, I2=6,92mA

              P2=2,301V*6,92mA=15,923mW

              Ƞ=15,923/74,448=0,21=21%

X              U1=16,94V, I1=4,18mA

              P1=16,94V*4,18mA=70,809mW

              U2=2,310V, I2=4,20mA

              P2=2,310V*4,20mA=9,702mW

              Ƞ=9,702/70,809=0,14=14%

XI              U1=16,97V, I1=4,03mA

              P1=16,97V*4,03mA=68,389mW

              U2=2,316V, I2=2,18mA

              P2=2,316V*2,18mA=5,049mW

              Ƞ=5,049/68,389=0,07=7%

XII              U1=16,99V, I1=3,96mA

              P­­1=16,99V*3,96mA=67,280mW

              U2=2,321V, I2=1,11mA

              P2=2,321V*1,11mA=2,576mW

              Ƞ=2,576/67,280=0,4=4%