# How easy it is to calculate the load of a transformer

The transformer changes the AC voltage from one level to another for power systems, appliances and chargers. But the size of the transformer has nothing to do with the voltage, it all depends on the amount of electricity it generates. Electricians and technicians refer to the equipment that powers a transformer as a load, be it machines, appliances, or electronic components. The load can be measured in amperes, watts, or volts / amperes. To calculate load, you must understand certain electrical terms and formulas. Take an inventory of all equipment that powers the transformer. List the components, lighting, fixtures, or equipment that the transformer will work with. Add the amount of current drawn by each of them, watts or volts / amperes. All equipment must have a tag or label indicating the amount of current or power consumed.

Convert power to equivalent values. Place the values ​​in two columns of the list. Label the first "current" and the second "watts" or "volts / amps". Use the formula: power equals volts times amperes, or (P = IE) t, do the conversion. Add the total amperes for the first column and the watts or volts / amps for the second column. The sums are equal to the load of the transformer, expressed by the three terms.