Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
For a synchronous motor, the maximum value of torque developed at an angle of
0 degree
45 degree
90 degree
180 degree
90 degree
For a synchronous motor, the maximum torque developed occurs at an angle of 90 degrees between the rotor and the stator magnetic field. This is where the alignments are optimal for maximum torque production.
For a synchronous motor, the maximum torque developed occurs at an angle of 90 degrees between the rotor and the stator magnetic field. This is where the alignments are optimal for maximum torque production.
TmaxтАЛ=╧ЙPтАЛ тАФ Maximum Torque produced
╬╕=90┬░ тАФ Angle for maximum torque
The synchronous motor operates based on the interaction between the rotating magnetic field produced by the stator and the rotor. When the rotor's field aligns at 90 degrees with the stator's magnetic field, the torque is maximized due to the highest magnetic pull experienced at this orientation.
The maximum torque in synchronous motors is achieved at a rotor angle of 90 degrees.
At this angle, the magnetic forces are perfectly aligned for optimal torque generation.
High efficiency under full load conditions.
Constant speed operation.
Requires synchronous speed to develop torque.
Not self-starting.
Used in applications requiring high precision and constant speed.
Common in industrial drives and pumps.
The maximum torque is critical for ensuring effective operation of the synchronous motor.
Option A is incorrect because at 0 degrees, the torque is zero; Option B yields a lower torque; Option D does not correspond to the operational efficiency of the motor.
C is correct тАФ maximum torque occurs at 90 degrees due to optimal magnetic interaction between rotor and stator.
Understanding the phase relationship between magnetic fields is crucial for solving synchronous motor problems in exams.