The minimum calculated size of a transformer when sizing at 125% of an existing load of 79.2 kVA is what?

To determine the minimum calculated size of a transformer when sizing at 125% of an existing load of 79.2 kVA, the calculation involves multiplying the existing load by 1.25.

Starting with the load of 79.2 kVA, when you calculate 125% of this load, you multiply:

79.2 kVA × 1.25 = 99 kVA.

This value represents the minimum transformer capacity needed to accommodate the existing load plus an additional margin to ensure that the transformer can handle potential future increases in load or demand without exceeding its capacity.

Selecting 99 kVA ensures that the transformer is adequately sized for the current load situation, contributes to system reliability, and prevents issues related to overloading.