I am having a little bit of confusion for some reason understanding how the phase and line voltage can be the same for a delta connected system, i understand why the current is different for the phase and line current (since there are 2 paths for the line current to go through etc and hence it is larger then the phase currents).
All i have found is pages, youtube videos etc mainly just saying it is equal to the phase voltage, nothing specifically saying why. I understand why no neutral connection is needed as well (since the sum of the voltages etc is 0).
Essentially what i am asking is how/why are the line voltages and phase voltages the same?
Is it due to the fact that they are 120 degrees out of phase? Hence say a 3 phase balanced source of 120 V was connected to a delta system, how is VRY=120V when Y is at 120V peak? If Y = +120 V peak, then wouldn't R be 0V? However it is not is it?
To get VYR to be a difference of 120 V, what does VR and VY equal?
I guess i do not get how say point R can be essentially 2 different voltages for YR and then RB.