Delta wye transformer, voltages explanation?

Question

So I'm doing a delta wye transformer simulation in simulink, and I need some clarification about transformer voltages. Here's a image from a youtube video

We have phase voltages on primary that are 4160 V, but we also have Voltage A to ground, B to ground and C to ground which is 2400 V.

And on the secondary side when we will look for a phase shift we are going to look for a to ground, b to ground, and a to ground voltages that are 480 V.

So my question is when we have a transformer (delta-wye) for example 220kV/110kV, so primary voltage is 220kV, but what voltage is it, voltage A to ground(VAG in video) or phase A (VAB)?

Answer 1

So my question is when we have a transformer (delta-wye) for example 220kV/110kV, so primary voltage is 220kV, but what voltage is it, voltage A to ground(VAG in video) or phase A (VAB)?

The default voltage specified for a three phase system is line voltage irrespective of the type of transformer that connects to it. So, if it is specified as 11 kV then that is the RMS voltage between power lines and will only be the phase voltage if it explicitly mentions that it is a phase voltage.

We have phase voltages on primary that are 4160 V

That is a misnomer; the voltage between two power lines in a three phase system is called line voltage not phase voltage.