It is possible for the invention to be embodied in an induction motor of {TAIL ~ a wound rotor type}, or be combined with the switching of Y Δ connections of the stator windings in order to achieve the diversification of {HEAD ~ torque characteristics} 
It is possible for the invention to be embodied in an induction motor of { TAIL ~ a wound rotor type } , or be combined with the switching of Y Δ connections of the stator windings in order to achieve the diversification of { HEAD ~ torque characteristics }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD