What is the formula to find total kVA on a wye-wye bank?

The formula for calculating the total kVA on a wye-wye bank is based on the relationship between line-to-line voltage and line-to-neutral voltage, as well as the nature of three-phase systems. In a three-phase system, the total kVA can be derived using the formula that incorporates the line-to-line voltage and the average current, accounting for the conversion factor for three-phase power, which is approximately 1.73 (the square root of 3).

By using the line-to-line voltage in combination with the average current and multiplying by the square root of 3, this formula accounts for the total power capacity being delivered across three phases. Dividing by 1000 converts the result to kilovolt-amperes (kVA), which is the standard unit for measuring apparent power in electrical systems.

In this case, since the wye configuration involves a direct relationship between the phases, employing the correct voltage (line-to-line) and current allows for an accurate representation of total power capacity in the system. Therefore, this formula effectively encapsulates the necessary calculations to determine total kVA in a wye-wye bank setup.