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Alternating-current circuit
Transformer
voltage on primary winding
U
1
=
V
x
nV
μV
mV
V
kV
MV
current in primary winding
I
1
=
A
x
pA
nA
μA
mA
A
kA
voltage on secondary winding
U
2
=
V
x
nV
μV
mV
V
kV
MV
current in secondary winding
I
2
=
A
x
pA
nA
μA
mA
A
kA
1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"