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Recent questions tagged revolution-per-minute
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GATE Electrical 2014 Set 2 | Question: 13
A three-phase, $4$-pole, self excited induction generator is feeding power to a load at a frequency $f_1$. If the load is partially removed, the frequency becomes $f_2$. If the speed of the generator is maintained at $1500$ $rpm$ ... $f_2> 50 Hz$ $f_1,f_2< 50Hz$ and $f_2> f_1$ $f_1>50 Hz$ and $f_2< 50 Hz$
makhdoom ghaya
asked
in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
revolution-per-minute
winding
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0
answers
2
GATE Electrical 2014 Set 1 | Question: 37
A $15\: kW, 230\: V\:dc$ shunt motor has armature circuit resistance of $0.4\: Ω$ and field circuit resistance of $230\: Ω.$ At no load and rated voltage, the motor runs at $1400$ ... , the motor draws a line current of $70\: A.$ Neglect armature reaction. The full load speed of the motor in rpm is _________.
makhdoom ghaya
asked
in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-1
eletrical-machines
armature-winding
revolution-per-minute
numerical-answers
0
votes
0
answers
3
GATE Electrical 2014 Set 1 | Question: 11
An $8$ – pole, $3$ – phase, $50\: Hz$ induction motor is operating at a speed of $700\:\text{rpm}.$ The frequency of the rotor current of the motor in $Hz$ is _________.
makhdoom ghaya
asked
in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-1
motor-winding
rotor-current
revolution-per-minute
numerical-answers
0
votes
0
answers
4
GATE Electrical 2015 Set 2 | Question: 23
A $4$-pole, separately excited, wave wound $DC$ machine with negligible armature resistance is rated for $230$ V and $5$ kW at a speed of $1200$ rpm. If the same armature coils are reconnected to form a lap winding, what is the rated voltage (in volts) and ... field circuit is left unchanged ? $230$ and $5$ $115$ and $5$ $115$ and $2.5$ $230$ and $2.5$
makhdoom ghaya
asked
in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2015-ee-2
lap-winding
armature-core
revolution-per-minute
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