What is the Kva power load for a system voltage of 240 with a balanced current load of 150 amps and a power factor of 80%?

To calculate the Kva power load for a system voltage of 240 volts with a balanced current load of 150 amps and a power factor of 80%, you can use the formula for apparent power (Kva), which is:

Kva = (Voltage × Current) / 1000

First, you convert the current in amps to kilowatts by multiplying the current (in amps) by the voltage (in volts) and dividing by 1000 to convert from watts to kilowatts. Next, when considering the power factor, you account for how effectively the current is being converted into useful work.

Here’s how to do it step by step:

1. Calculate the apparent power (Kva) without factoring in the power factor:

Kva = (240 volts × 150 amps) / 1000 = 36 Kva

2. Now, since there's a power factor of 80%, you need to divide the apparent power by the power factor:

To find the real power (Kw), which is what the power factor affects, you multiply the Kva by the power factor:

Kw = Kva × Power Factor = 36 Kva × 0.80 = 28.8 Kw