Question 2Electricity & Electronics - Assistant Engineer
70% to passWhat is the characteristic of a wound-rotor induction motor, with a high resistance inserted in series with the rotor winding at startup?
The correct answer is D) relatively high starting torque and low stator current. When a wound-rotor induction motor has a high resistance inserted in series with the rotor winding at startup, it results in a high starting torque and low stator current. The high resistance in the rotor circuit limits the rotor current, which in turn increases the torque developed by the motor. This high resistance also reduces the stator current drawn by the motor during the starting process, as the rotor impedance is effectively increased. The other options are incorrect because they do not accurately describe the characteristics of a wound-rotor induction motor with a high resistance in the rotor circuit at startup. A low starting torque and low stator current (option A) or a low starting torque and high stator current (option B) would not be the correct behavior. A high starting torque and high stator current (option C) is also incorrect, as the high resistance in the rotor circuit limits the stator current.
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