Conversion Calculators

Impedance into a Transformer-Coupled Load

Enter the rated primary volts of the transformer and the short-circuit volts into the calculator to determine the transformer impedance percentage.

When referring to the impedance of a transformer, it is the equivalent impedance that is meant. The percentage impedance of a transformer is the volt drop on full load due to the winding resistance and leakage reactance expressed as a percentage of the rated voltage.

It is also the percentage of the normal terminal voltage required to circulate full-load current under short-circuit conditions. For this calculator, enter the rated primary volts of the transformer and the short-circuit volts to determine the transformer impedance percentage.

Impedance into a
Transformer-Coupled Load

Load Impedance (Z)

ohms

Transformer Turn Ratio (Tr)
( Tr to 1 step down)

            

Load Presented to Amplifier (R)

ohms

 

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