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What losses occur in the teeth of dc generator?
- a)To reduce hysteresis loss
- b)To reduce eddy current loss
- c)To reduce eddy current as well as hysteresis losses
- d)To achieve high permeability
Correct answer is option 'C'. Can you explain this answer?
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What losses occur in the teeth of dc generator?a)To reduce hysteresis ...
Copper Losses or Electrical Losses in DC Machine or Winding Loss. The copper losses are the winding losses taking place during the current flowing through the winding. These losses occur due to the resistance in the winding. In DC machine, there are only two winding, armature and field winding As we know “Energy neither can be created nor it can be destroyed, it can only be transferred from one form to another”. In DC machine, mechanical energy is converted into the electrical energy. During this process, the total input power is not transformed into output power.The copper losses are the winding losses taking place during the current flowing through the winding. These losses occur due to the resistance in the winding. In DC machine, there are only two winding, armature and field winding.To reduce eddy current as well as hysteresis losses
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What losses occur in the teeth of dc generator?a)To reduce hysteresis ...
Losses in Teeth of DC Generator
The teeth in a DC generator are designed to carry magnetic flux. However, due to the presence of magnetic flux, some losses occur in the teeth of DC generator. These losses include hysteresis loss and eddy current loss.
Hysteresis Loss
Hysteresis loss occurs due to the reversal of magnetic flux in the teeth of the DC generator. The reversal of magnetic flux causes the magnetization and demagnetization of the iron core repeatedly. This leads to the loss of energy in the form of heat. The hysteresis loss can be reduced by using high-quality steel for the teeth and by reducing the frequency of the magnetic reversals.
Eddy Current Loss
Eddy current loss occurs due to the circulation of eddy currents in the teeth of the DC generator. The eddy currents are induced in the teeth due to the changing magnetic field. This leads to the loss of energy in the form of heat. The eddy current loss can be reduced by using laminated steel for the teeth.
Reducing Hysteresis and Eddy Current Losses
The losses in the teeth of the DC generator can be reduced by using laminated steel for the teeth. Laminated steel reduces both hysteresis and eddy current losses. The laminated steel is made up of several thin sheets of steel. These sheets are insulated from each other by a layer of varnish or paper. The insulation between the layers of steel prevents the circulation of eddy currents. The thin sheets of steel reduce the hysteresis loss by reducing the distance traveled by the magnetic flux.
High Permeability
High permeability is not a solution to reduce losses in the teeth of the DC generator. High permeability increases the magnetic flux in the teeth, which can increase the hysteresis and eddy current losses. Therefore, using laminated steel is a better solution to reduce losses in the teeth of the DC generator.
The teeth in a DC generator are designed to carry magnetic flux. However, due to the presence of magnetic flux, some losses occur in the teeth of DC generator. These losses include hysteresis loss and eddy current loss.
Hysteresis Loss
Hysteresis loss occurs due to the reversal of magnetic flux in the teeth of the DC generator. The reversal of magnetic flux causes the magnetization and demagnetization of the iron core repeatedly. This leads to the loss of energy in the form of heat. The hysteresis loss can be reduced by using high-quality steel for the teeth and by reducing the frequency of the magnetic reversals.
Eddy Current Loss
Eddy current loss occurs due to the circulation of eddy currents in the teeth of the DC generator. The eddy currents are induced in the teeth due to the changing magnetic field. This leads to the loss of energy in the form of heat. The eddy current loss can be reduced by using laminated steel for the teeth.
Reducing Hysteresis and Eddy Current Losses
The losses in the teeth of the DC generator can be reduced by using laminated steel for the teeth. Laminated steel reduces both hysteresis and eddy current losses. The laminated steel is made up of several thin sheets of steel. These sheets are insulated from each other by a layer of varnish or paper. The insulation between the layers of steel prevents the circulation of eddy currents. The thin sheets of steel reduce the hysteresis loss by reducing the distance traveled by the magnetic flux.
High Permeability
High permeability is not a solution to reduce losses in the teeth of the DC generator. High permeability increases the magnetic flux in the teeth, which can increase the hysteresis and eddy current losses. Therefore, using laminated steel is a better solution to reduce losses in the teeth of the DC generator.
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Community Answer
What losses occur in the teeth of dc generator?a)To reduce hysteresis ...
A data for calculation of voltage in DC machine is givein as
flux=300Wb
N=100
1/100 second
flux=300Wb
N=100
1/100 second
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What losses occur in the teeth of dc generator?a)To reduce hysteresis lossb)To reduce eddy current lossc)To reduce eddy current as well as hysteresis lossesd)To achieve high permeabilityCorrect answer is option 'C'. Can you explain this answer?
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What losses occur in the teeth of dc generator?a)To reduce hysteresis lossb)To reduce eddy current lossc)To reduce eddy current as well as hysteresis lossesd)To achieve high permeabilityCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about What losses occur in the teeth of dc generator?a)To reduce hysteresis lossb)To reduce eddy current lossc)To reduce eddy current as well as hysteresis lossesd)To achieve high permeabilityCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What losses occur in the teeth of dc generator?a)To reduce hysteresis lossb)To reduce eddy current lossc)To reduce eddy current as well as hysteresis lossesd)To achieve high permeabilityCorrect answer is option 'C'. Can you explain this answer?.
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