I have attached schematic for reference. I have doubt related to calculating and printing some data.
I have 3 phase 4 wire system
if i give 3 phase with 4 wire i could able to read analog channel from A0/A1/A2/ and convert them to display line voltage
Now i wanted to measure like this
condition 1 : Where i could use separate line R,Y,B in this case Line to Neutral ,Line to line voltage should display vline=Sqrt(3)*Vphase voltage
Condition 2:Assume Rphase being shorted to yphase/bphase where y/b phase connection are removed. Rphase only supplying voltage to y/b phase in this phase angle will be 0 degree instead of 120deg. Now how can i measure such away that Line to neutral will be showing 230v but line to line will be showing 0V since phase angle is zero
Is there any common ckt that uses 3 phase 3 wire and 3phase 4 wire
any simple algorithm to measure voltage when setup changed?/