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Electrical Machines
In a synchronous motor hunting can be reduced to minimum possible by
any of above methods.
using a flywheel.
providing damper winding in the rotor pole faces.
designing the motor for adequate synchronizing power.
any of above methods.
using a flywheel.
providing damper winding in the rotor pole faces.
designing the motor for adequate synchronizing power.
Answer
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Related Question
Electrical Machines
In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve
quick acceleration.
high efficiency.
reduced size.
low starting torque.
quick acceleration.
high efficiency.
reduced size.
low starting torque.
Answer
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Electrical Machines
For high current and low current rating which winding is employed to DC machine?
Both lap and wave winding
Wave winding
None of above
Lap winding
Both lap and wave winding
Wave winding
None of above
Lap winding
Answer
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Electrical Machines
The core flux in transformer depends mainly on
supply voltage, frequency and load
supply voltage and frequency
supply voltage
supply voltage and load
supply voltage, frequency and load
supply voltage and frequency
supply voltage
supply voltage and load
Answer
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Electrical Machines
Skewing of cage rotors offers the following advantages
all of below.
less noise.
locking tendency is reduced.
uniform torque.
all of below.
less noise.
locking tendency is reduced.
uniform torque.
Answer
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Electrical Machines
Total core loss is also called as -------------?
Copper loss
Eddy current loss
Hysteresis loss
Magnetic loss
Copper loss
Eddy current loss
Hysteresis loss
Magnetic loss
Answer
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