Hey guys,
as the thread title says the question is if a given motor wound in STAR can do more torque as same motor wound in DELTA.
Of course if we adjust the phase current by factor 1,73 and all other things left aside, like harmonics, circulating currents etc.
Just raw torque from zero (0) RPM with adjusted phase current.
I would like to discuss about that because i have a motor with changable winding connection, and i noticed that it can do way more torque in STAR @ 200A vs DELTA @ >400A, which i cannot explain by myself since at around 350A (200A x 1,73) they should be on par, and at 400A the DELTA-wound motor should do more torque, but it doesn't
One reason could be that if we apply current between two phases, then in STAR two of the three windings see the full current and the other winding zero, while in DELTA one winding sees 2/3 of the current and the other two 1/3.
Any ideas?
as the thread title says the question is if a given motor wound in STAR can do more torque as same motor wound in DELTA.
Of course if we adjust the phase current by factor 1,73 and all other things left aside, like harmonics, circulating currents etc.
Just raw torque from zero (0) RPM with adjusted phase current.
I would like to discuss about that because i have a motor with changable winding connection, and i noticed that it can do way more torque in STAR @ 200A vs DELTA @ >400A, which i cannot explain by myself since at around 350A (200A x 1,73) they should be on par, and at 400A the DELTA-wound motor should do more torque, but it doesn't
One reason could be that if we apply current between two phases, then in STAR two of the three windings see the full current and the other winding zero, while in DELTA one winding sees 2/3 of the current and the other two 1/3.
Any ideas?