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Why is the torque speed characteristics of a universal motor on ac source different from the torque speed characterisctic of the same motor on a dc source?
The torque-speed characteristics of a universal motor differ between AC and DC sources primarily due to the effects of reactance and phase differences in AC operation. When powered by AC, the inductance of the motor introduces additional impedance, which can lead to a reduction in torque at higher speeds due to increased reactance. In contrast, when powered by DC, the motor operates without these reactance effects, allowing for a more linear torque-speed curve with higher torque at lower speeds. Consequently, the performance characteristics shift significantly between the two power sources.
What does happen if tripled harmonics is given to induction motorADMISSION?
If triplen harmonics (multiples of three) are introduced to an induction motor, they can lead to increased heating, reduced efficiency, and potential torque pulsation. Triplen harmonics do not contribute to the motor's fundamental torque, which can cause additional vibrations and mechanical stress. Additionally, these harmonics can lead to distorted current waveforms, potentially affecting the motor's performance and lifespan. In severe cases, it may also result in overheating of the motor windings.
Which type of motor is used in wet grinders?
A universal motor is used to operate a food mixer.
What is torque percent in electrical motor and unit of torque?
In SI, torque is measured in newton metres (N.m). The percentage torque varies according to the design and specifications of a motor.
What is the difference between max torque and breakdown torque of a electric motor?
Max torque and breakdown toarque are the same...,.the point at which a motor will stop/stall.
Why is the torque speed characteristics of a universal motor on ac source different from the torque speed characterisctic of the same motor on a dc source?
The torque-speed characteristics of a universal motor differ between AC and DC sources primarily due to the effects of reactance and phase differences in AC operation. When powered by AC, the inductance of the motor introduces additional impedance, which can lead to a reduction in torque at higher speeds due to increased reactance. In contrast, when powered by DC, the motor operates without these reactance effects, allowing for a more linear torque-speed curve with higher torque at lower speeds. Consequently, the performance characteristics shift significantly between the two power sources.
What is cogging torque?
Cogging torque is the phenomenon where a permanent magnet motor experiences non-uniform force during rotation due to magnetic attraction between the rotor and stator teeth. This can cause vibrations, noise, and affect the smoothness of the motor operation. Design techniques such as skewing the rotor slots or using sinusoidal winding can help reduce cogging torque.
What does happen if tripled harmonics is given to induction motorADMISSION?
If triplen harmonics (multiples of three) are introduced to an induction motor, they can lead to increased heating, reduced efficiency, and potential torque pulsation. Triplen harmonics do not contribute to the motor's fundamental torque, which can cause additional vibrations and mechanical stress. Additionally, these harmonics can lead to distorted current waveforms, potentially affecting the motor's performance and lifespan. In severe cases, it may also result in overheating of the motor windings.
Which type of motor is used in wet grinders?
A universal motor is used to operate a food mixer.
How do you calculate hydraulic motor torque?
how to calculate hydraulic motor torque
Explain about construction of universal motor?
construction of universal motor
What is torque percent in electrical motor and unit of torque?
In SI, torque is measured in newton metres (N.m). The percentage torque varies according to the design and specifications of a motor.
What is the difference between max torque and breakdown torque of a electric motor?
Max torque and breakdown toarque are the same...,.the point at which a motor will stop/stall.
What is reluctance torque?
torque of synchronous motor with out feild exitation
What kind of motor is used in mixie?
universal motor
Which motor used in ac and dc?
universal motor
What is starting torque?
The torque which is produced during the starting of motor is simply called as starting torque.
