what is the equation for kva capacity for a 3-phase transformer?

The equation for calculating the kVA capacity of a 3-phase transformer is given by:
[ text{kVA} = frac{sqrt{3} times V times I}{1000} ]
Where ( V ) is the line-to-line voltage in volts, and ( I ) is the current in amperes. This formula accounts for the three-phase nature of the transformer, utilizing the square root of three to convert the product of voltage and current into kilovolt-amperes (kVA).