In a capacitor start single-phase motor, when capacitor is replaced by a resistance
A. torque will increase
B. the motor will consume less power
C. motor will run in reverse direction
D. motor will continue to run in same direction
Answer: Option D
Solution (By Examveda Team)
In a capacitor start single-phase motor, when the capacitor is replaced by a resistance, the motor will continue to run in the same direction.The capacitor in a single-phase motor is used to create a phase shift for starting torque.
If replaced by a resistance, the phase shift required for starting will not be achieved, resulting in lower starting torque.
However, once the motor is running, it will continue to operate in the same direction as before.
The motor's performance might be less efficient, but the direction of rotation will remain unchanged.
This Question Belongs to Electrical Engineering >> Single Phase Induction Motors
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Comments (3)
A. the starting winding is connected through a centrifugal switch
B. the running winding is connected through a centrifugal switch
C. both starting and running windings are connected through a centrifugal switch
D. centrifugal switch is used to control supply voltage
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A. secondary winding surrounds the primary winding
B. primary winding surrounds the secondary winding
C. both are usual arrangements
D. none of the above
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A. Gradually varying load
B. Non-reversing, no-load start
C. Reversing, light start
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A. Shaded pole motor
B. Hysteresis motor
C. Two value capacitor motor
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Explanation: In conclusion, when the capacitor in a capacitor start single-phase motor is replaced by a resistance, the torque produced by the motor will decrease, the power consumption of the motor will increase, and the motor will continue to run in the same direction.
Why?
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