Transformer EMF Calculation Calculator With EMF Formula

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