What is the high side line current for the 50 kVA transformer?

To find the high side line current for a 50 kVA transformer, you first need to consider the relationship between power (in VA), voltage, and current. The formula for power is given by:

[ \text{Power (VA)} = \text{Voltage (V)} \times \text{Current (I)} ]

For a transformer, the rated power is distributed across its primary (high side) and secondary (low side) windings depending on the voltage levels. To determine the current on the high side, you would use the transformer's power rating and the voltage of the high side.

Assuming a standard high side voltage (for example, 480 V) for the calculations, you would rearrange the formula to solve for current:

[ \text{Current (I)} = \frac{\text{Power (VA)}}{\text{Voltage (V)}} ]

So for a 50 kVA transformer operating at 480 V on the high side, the calculation would look like this:

[ I = \frac{50,000 \text{ VA}}{480 \text{ V}} \approx 104.17 \text{ A} ]

However, what is critical to our scenario is understanding how