Question

Given: On a 480/240 volt step-down transformer, the primary current is 200 amps. The approximate secondary current is ___________ amperes.

Answer 1

The approximate secondary current of the step-down transformer is 400 amperes.

Step-by-step explanation:

The approximate secondary current can be calculated using the formula:

Secondary Current = (Primary Current * Primary Voltage) / Secondary Voltage

Given that the primary current is 200 amps, the primary voltage is 480 volts, and the secondary voltage is 240 volts, we can substitute these values into the formula to find:

Secondary Current = (200 * 480) / 240 = 400 amps

Therefore, the approximate secondary current is

400 amperes

.