### Transformer EMF calculator:

Enter the frequency, flux and number of conductors, then press the calculate button.

### Transformer EMF Calculation:

EMF is nothing but a voltage which built at the transformer terminal when you apply voltage at another winding. EMF E_{(V)} in volts is equal to the 4.44 times of product of frequency F_{(Hz)} in Hertz, maximum flux ϕ_{m} in Weber and the number of conductor N in number.

EMF equation can be written as,

E_{(V)} = 4.44 x F_{(Hz)} x ϕ_{(Weber)} x N_{(Number)}

Also while calculating primary EMF E_{(P-V)} in Volts we should take the primary number of turns as well as while calculating secondary EMF E_{(S-V)} in Volts we need to take the secondary number of conductors.

E_{(P-V)} = 4.44 x F_{(Hz)} x ϕ_{(Weber)} x N_{(P-Number)}

Secondary EMF E_{(S-V)} in volts will be

E_{(S-V)} = 4.44 x F_{(Hz)} x ϕ_{(Weber)} x N_{(S-Number)}

**Example:**

Calculate the secondary EMF in volts across a transformer which is having 450 conductors, 50Hz, 0.11 Web flux produced.

E_{(V)} = 4.44 x 50 x 450 x 0.11

Voltage across the transformer terminal will be 10989 Volts

Approximately 11kV