Kw to kva

[tallgirl]

For the most part, what the NEC cares about is amperes and leaves the voltage to FERC. VA is mostly about nominal voltages. The NEC doesn't get all freaky if the utility is running the voltage at the upper limit, making the VA a little high.

 

[Speedskater]

Sounds about right, especially the comment about some loads being resistive, and some being reactive, and some loads are just real turds and will consume more amps if the voltage is lower, which isn't how resistive loads work.

That would be Switch Mode Power Supplies (SMPS).
They don't much care what the input voltage is. If the line voltage drops, their input current increases, so that their output power remains the same.
Something like a negative resistive load.
They can drive some generators, UPS and regenerative sources nuts. As each tries to control the line voltage.

 

[kwired]

I'm at a loss as to what he thinks 220.5 is saying as far as converting kW to kVA as well. Most the 220 calculations are based on VA though which makes sense because these calculations are for determining the load that will be used for selecting conductors or overcurrent protective devices. If there is a power factor involved the "apparent power" (VA) is what will be seen by the conductors and the overcurrent devices