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In a dc motor the windage loss is proportional to____.
- a)supply voltage
- b)square of the supply voltage
- c)square of the flux density
- d)square of the armature speed
Correct answer is option 'D'. Can you explain this answer?
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In a dc motor the windage loss is proportional to____.a)supply voltag...
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Windage Loss in DC Motor
Windage loss in a DC motor refers to the power loss resulting from the mechanical friction, turbulence, and air resistance generated by the movement of the rotor in the air. The windage loss is proportional to various factors, including the supply voltage, flux density, and armature speed.
Proportional to Square of Armature Speed
The windage loss in a DC motor is proportional to the square of the armature speed. This means that as the speed of the motor increases, the windage loss also increases and becomes a significant factor in determining the overall efficiency of the motor. The main reason for this is that at higher speeds, the rotor generates more turbulence and friction in the air, which results in higher power losses.
Other Factors
While the windage loss is primarily dependent on the armature speed, other factors can also influence the amount of power loss. For example, the flux density of the motor can affect the windage loss by changing the amount of air resistance that the rotor encounters. Similarly, the supply voltage can affect the windage loss by changing the amount of power that is supplied to the motor.
Conclusion
In conclusion, the windage loss in a DC motor is an important factor that can affect the overall efficiency of the motor. It is proportional to the square of the armature speed and can be influenced by other factors such as the flux density and supply voltage. By understanding these factors and minimizing the windage loss, it is possible to improve the efficiency and performance of DC motors.
Windage loss in a DC motor refers to the power loss resulting from the mechanical friction, turbulence, and air resistance generated by the movement of the rotor in the air. The windage loss is proportional to various factors, including the supply voltage, flux density, and armature speed.
Proportional to Square of Armature Speed
The windage loss in a DC motor is proportional to the square of the armature speed. This means that as the speed of the motor increases, the windage loss also increases and becomes a significant factor in determining the overall efficiency of the motor. The main reason for this is that at higher speeds, the rotor generates more turbulence and friction in the air, which results in higher power losses.
Other Factors
While the windage loss is primarily dependent on the armature speed, other factors can also influence the amount of power loss. For example, the flux density of the motor can affect the windage loss by changing the amount of air resistance that the rotor encounters. Similarly, the supply voltage can affect the windage loss by changing the amount of power that is supplied to the motor.
Conclusion
In conclusion, the windage loss in a DC motor is an important factor that can affect the overall efficiency of the motor. It is proportional to the square of the armature speed and can be influenced by other factors such as the flux density and supply voltage. By understanding these factors and minimizing the windage loss, it is possible to improve the efficiency and performance of DC motors.
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In a dc motor the windage loss is proportional to____.a)supply voltag...
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In a dc motor the windage loss is proportional to____.a)supply voltageb)square of the supply voltagec)square of the flux densityd)square of the armature speedCorrect answer is option 'D'. Can you explain this answer?
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