A 1Ø transformer rated at 500 VA can deliver how many amps to a 120-volt load without overheating?

To determine how many amps a 1-phase transformer rated at 500 VA can deliver to a 120-volt load without overheating, you can use the formula that relates volt-amperes, voltage, and current:

[ \text{VA} = \text{Volts} \times \text{Amperes} ]

Rearranging the formula to solve for amps gives:

[ \text{Amperes} = \frac{\text{VA}}{\text{Volts}} ]

In this case, the transformer is rated at 500 VA, and the load voltage is 120 volts. Plugging these values into the formula:

[ \text{Amperes} = \frac{500 \text{ VA}}{120 \text{ V}} ]

Calculating this:

[ \text{Amperes} = \frac{500}{120} \approx 4.17 \text{ Amps} ]

This means the transformer can safely deliver approximately 4.17 amps to a 120-volt load. This is important for ensuring that the transformer operates within its rated capacity, preventing overheating and potential damage to the transformer.

Understanding this concept is essential for electrical technicians, as it involves