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Recent questions tagged winding
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GATE20139
A singlephase transformer has noload loss of $64$ $W$,as obtained from an opencircuit test.when a shortcircuit test is performed on it with $90$% of the rated current flowing in its both $LV$ and $HV$ winding,the measured loss is $81$ $W$.The transformer has maximum ... of the rated current. $64.0$ % of the rated current. $80.0$ % of the rated current. $88.8$ % of the rated current.
asked
Feb 12, 2017
in
Electrical Machines
by
piyag476
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1.5k
points)
gate2013ee
efficiency
winding
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2
GATE2014213
A threephase, $4$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 $1500$ $rpm$ in both the cases, then $f_1,f_2> 50Hz$ ... $f_1< 50 Hz$ and $f_2> 50 Hz$ $f_1,f_2< 50Hz$ and $f_2> f_1$ $f_1>50 Hz$ and $f_2< 50 Hz$
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.2k
points)
gate2014ee2
revolutionperminute
winding
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3
GATE2015222
The figure shows the perphase equivalent circuit of a twopole threephase induction motor operating at $50$ Hz. The “airgap” voltage, $V_{g}$ across the magnetizing inductance, is $210$ V rms, and the slip, $s$, is $0.05$. The torque (in Nm) produced by the motor is _________.
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Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.2k
points)
gate2015ee2
slipspeed
motor
winding
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4
GATE2016124
A $4$pole, lapconnected, separately excited $dc$ motor is drawing a steady current of $40$ A while running at $600$ rpm. A good approximation for the waveshape of the current in an armature conductor of the motor is given by
asked
Jan 30, 2017
in
Electrical Machines
by
makhdoom ghaya
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9.2k
points)
gate2016ee1
rotor
stator
winding
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