My question is , is it possible to connect star connected motor in delta configuration keeping the voltage same ? if yes in what case ?
Yes, it is possible and I'm sure it has been done. The question, I presume, is can you do it without damage.
- Read the motor winding max voltage from the rating plate.
- Read the phase to phase voltage.
- If (1) > (2) then yes.
- If (1) < (2) then no.