Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Which of the following losses, in a synchrono...
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Which of the following losses, in a synchronous motor, does not vary with load?
- a)Windage loss
- b)Copper losses
- c)Any of the above
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Which of the following losses, in a synchronous motor, does not vary w...
Answer:
In a synchronous motor, there are several losses that occur during its operation. These losses include windage losses and copper losses. However, out of these losses, windage loss does not vary with load.
1. Windage Loss:
Windage loss refers to the power loss that occurs due to the mechanical friction between the rotating parts of the motor and the air. It is caused by the movement of air around the rotor and stator. This loss is primarily dependent on the speed of the motor rather than the load. Therefore, windage loss remains constant regardless of the load on the motor.
2. Copper Losses:
Copper losses are the power losses that occur in the motor windings due to the resistance of the copper wires. These losses are caused by the flow of current through the stator and rotor windings. Copper losses are dependent on the square of the current flowing through the windings and therefore vary with the load on the motor. As the load increases, the current in the windings also increases, leading to higher copper losses.
Conclusion:
Based on the above explanation, we can conclude that windage losses do not vary with load in a synchronous motor. This is because windage losses are primarily dependent on the speed of the motor, which remains relatively constant regardless of the load. On the other hand, copper losses vary with the load as they are directly proportional to the square of the current flowing through the windings.
In a synchronous motor, there are several losses that occur during its operation. These losses include windage losses and copper losses. However, out of these losses, windage loss does not vary with load.
1. Windage Loss:
Windage loss refers to the power loss that occurs due to the mechanical friction between the rotating parts of the motor and the air. It is caused by the movement of air around the rotor and stator. This loss is primarily dependent on the speed of the motor rather than the load. Therefore, windage loss remains constant regardless of the load on the motor.
2. Copper Losses:
Copper losses are the power losses that occur in the motor windings due to the resistance of the copper wires. These losses are caused by the flow of current through the stator and rotor windings. Copper losses are dependent on the square of the current flowing through the windings and therefore vary with the load on the motor. As the load increases, the current in the windings also increases, leading to higher copper losses.
Conclusion:
Based on the above explanation, we can conclude that windage losses do not vary with load in a synchronous motor. This is because windage losses are primarily dependent on the speed of the motor, which remains relatively constant regardless of the load. On the other hand, copper losses vary with the load as they are directly proportional to the square of the current flowing through the windings.
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Which of the following losses, in a synchronous motor, does not vary with load?a)Windage lossb)Copper lossesc)Any of the aboved)None of the aboveCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Which of the following losses, in a synchronous motor, does not vary with load?a)Windage lossb)Copper lossesc)Any of the aboved)None of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following losses, in a synchronous motor, does not vary with load?a)Windage lossb)Copper lossesc)Any of the aboved)None of the aboveCorrect answer is option 'A'. Can you explain this answer?.
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