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Electrical Machines
In normal dc machines operating at full-load conditions, the most powerful electromagnet is
interpole and compensating windings together
field winding
interpole winding
armature winding
interpole and compensating windings together
field winding
interpole winding
armature winding
Answer
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Related Question
Electrical Machines
A 10 kW, 230 V, dc shunt machine has four terminals brought out through four leads. For this machine
both the windings have thick leads
armature winding has thick leads whereas field winding has thin leads
armature winding has thin leads whereas field winding has thick leads
both the windings have thin leads
both the windings have thick leads
armature winding has thick leads whereas field winding has thin leads
armature winding has thin leads whereas field winding has thick leads
both the windings have thin leads
Answer
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Electrical Machines
Hunting in a synchronous cannot be due to
variable frequency.
windage friction.
variable load.
variable supply voltage.
variable frequency.
windage friction.
variable load.
variable supply voltage.
Answer
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Electrical Machines
In synchronous generator, inverted V curve is drawn between
field current on X-axis and power factor on Y-axis
field current on Y-axis and power factor on X-axis
field current on X-axis and armature current on Y-axis
field current on Y-axis and armature current on X-axis
field current on X-axis and power factor on Y-axis
field current on Y-axis and power factor on X-axis
field current on X-axis and armature current on Y-axis
field current on Y-axis and armature current on X-axis
Answer
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Electrical Machines
A DC generator can be considered as
prime mover.
rectifier.
power pump.
rotating amplifier.
prime mover.
rectifier.
power pump.
rotating amplifier.
Answer
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Electrical Machines
The interpoles in dc machines have a tapering shape in order to
reduce the saturation in the interpole
reduce the overall weight
economise on the material required for interpoles and their windings
increase the acceleration of commutation
reduce the saturation in the interpole
reduce the overall weight
economise on the material required for interpoles and their windings
increase the acceleration of commutation
Answer
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