I was wondering if there is a way to calculate some more information from the standard VA rating found in power transformer datasheets? This is for an EI core transformer.

Not exactly (just not to say plain "no)

Design is always a compromise, so according to designer preferences transformers can be designed in different ways, yet all be acceptable .

He might minimize iron used to save weight/size in which case he will work closer to saturation, or minimize copper, in which case he'll have higher resistive losses , or design "no strings attached" , either for HiFi or personal use, all will use different core sizes, different copper turns = different inductance.

Besides, gap influences inductance a lot, and you have an uncontrolled gap even in a regular interleaved iron EI transformer, because cut ends are rough and do not perfectly stack up.

So much so that to improve that, expensive "C" cores are wound, cut, and mating surfaces *polished* to minimize gap.

That's why best is just to measure the d*mn things, as suggested by JonSnell

Calculate inductive reactance, XL: XL = V / I so 240 = 120 / .5

Your formula is fine, but with wrong data, that's not inductive reactance, this is not a choke but a transformer, so that is the load impedance reflected to the primary.

The actual inductance

** can **be calculated by measuring primary current with secondary

**unloaded**.

In fact it's a standard test suggested in transformer design manuals.

Good design practice is to choose primary inductance high enough so at 50/60Hz transformer pasess relatively small üseless" idle current, compared to useful current to be delivered to the load.

Calculate required inductance, L: L = XL / 2 * pi * f so .636 = 240 / 2 * pi * 60

Is this close? Can winding resistance be found too?

What you had calculated first was not XL