Dik: Vp=220V Np=220 lilitan Ns= 640 lilitan Vs= 8 ohm. Dit: Ip=?

Diket :
Np = 220
Ns = 640
Vp = 220 v
R s = 8 ohm

Dit : Arus primer

Jwb :

# Tegangan sekunder

Vs = ( Ns . Vp ) / Np
Vs = ( 640 . 220 ) / 220
Vs = 140.800 / 220
Vs = 640 volt

# Arus sekunder

Is = Vs / R s
Is = 640 / 8
Is = 80 A

# Arus primer

Ip = ( Vs . Is ) / Vp
Ip = ( 640 . 80 ) /220
Ip = 51.200 /220
Ip = 232,7 A

Jadi arus primernya 232,7 A