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Electrical Machines
A 3 - Φ, 6 pole, 50 Hz IM is running at a full load speed of 980 rpm. If it delivers an air gap power of 98000 Watt, calculate the rotor ohmic loss?
1920 Watt.
1800 Watt.
1960 Watt.
980 Watt.
1920 Watt.
1800 Watt.
1960 Watt.
980 Watt.
Answer
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Related Question
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The field divertor resistance for a DC series motor is of order of
100 Ω
0.1 Ω
50 Ω
10 Ω
100 Ω
0.1 Ω
50 Ω
10 Ω
Answer
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Electrical Machines
Which type of single phase induction motor is having the highest power factor at full load ?
Split phase type.
Capacitor run type.
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Shaded pole type.
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Answer
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Electrical Machines
A 4-pole generator with 16 coil has a two layer lap winding. The pole pitch is
8.
4.
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8.
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Answer
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Electrical Machines
If the field connection of a DC Shunt Motor is changed then
it will run in same direction.
it will run in same direction by slowly.
motor will not run.
it will run in opposite direction.
it will run in same direction.
it will run in same direction by slowly.
motor will not run.
it will run in opposite direction.
Answer
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Electrical Machines
If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will
increase by 5 %.
reduce by 5 %.
remain unchanged.
depend on other factors.
increase by 5 %.
reduce by 5 %.
remain unchanged.
depend on other factors.
Answer
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