Question 3Electricity/Electronics - Assistant Engineer70% to pass
As shown in the illustrated wound-rotor induction motor, what statement is true concerning motor lead connections? Illustration EL-0148
AI Explanation
The correct answer is C.
The "M1, M2, and M3" motor leads are connected to the rotor windings via slip rings and brushes, while the "T1, T2, and T3" motor leads are directly connected to the stator windings. This is the typical configuration for a wound-rotor induction motor, where the rotor windings are accessed through slip rings to allow for external resistance or voltage control to be applied, while the stator windings are directly connected to the power supply.
The other options are incorrect because they do not accurately describe the connections shown in the illustrated wound-rotor induction motor. It is important to understand the correct lead connections in order to properly operate and maintain this type of motor.
Related Questions
#1 A degree of control over the speed of a slip ring induction motor can be obtained by what means? #2 What is the characteristic of a wound-rotor induction motor, with a high resistance inserted in series with the rotor winding at startup? #4 What type of AC motor would use a rheostat in the rotor circuit to vary the speed of the motor? #5 Which of the following physical characteristics does a three-phase wound-rotor induction motor possess that a squirrel-cage induction motor does not? #6 As part of a routine maintenance program for deck machinery motor controllers, what should be done?