Transformer Output & Input Amperes Calculations

Input
A primary voltage of 415 volts for a 100VA transformer will draw .21 amps...
e.g., 100 VA ÷ 480 Volts = 0.24 Amps.

Output

A secondary voltage of 240 volts for a 100VA transformer will draw .21 amps...
e.g., 100 VA ÷ 240 Volts = 0.42 Amps.

23/01/2010