60. What is the characteristic of a wound-rotor induction motor, with a high resistance inserted in series with the rotor winding at startup?

Inserting high resistance into the rotor circuit of a wound-rotor induction motor at startup results in high starting torque and reduced stator current. This is because increased rotor resistance improves the rotor power factor, lowering the stator current drawn from the line while maximizing starting torque when rotor resistance approximates rotor reactance. This method is employed for heavy-duty starting applications requiring high torque with limited line current.