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Hot questions in Electrical Machines
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GATE201623
The following figure shows the connection of an ideal transformer with primary to secondary turns ratio of $1:100$. The applied primary voltage is $100 V$ (rms), $50 Hz, AC$. The rms value of the current $I$, in ampere, is _________.
asked
Jan 30, 2017
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Electrical Machines
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makhdoom ghaya
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9.3k
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gate2016ee2
isolation
windings
turnratio
numericalanswers
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2
GATE2016222
The direction of rotation of a singlephase capacitor run induction motor is reversed by Interchanging the terminals of the AC supply. Interchanging the terminals of the capacitor. Interchanging the terminals of the auxiliary winding. Interchanging the terminals of both the windings.
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Jan 30, 2017
in
Electrical Machines
by
makhdoom ghaya
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9.3k
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gate2016ee2
pitchfactor
coilspan
statorslots
fluxperpole
0
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0
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3
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
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Jan 30, 2017
in
Electrical Machines
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makhdoom ghaya
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9.3k
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gate2016ee1
rotor
stator
winding
0
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0
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4
GATE2016116
In a constant $V/f$ induction motor drive, the slip at the maximum torque Is directly proportional to the synchronous speed. Remains constant with respect to the synchronous speed. Has an inverse relation with the synchronous speed. Has no relation with the synchronous speed.
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Jan 30, 2017
in
Electrical Machines
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makhdoom ghaya
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9.3k
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gate2016ee1
slipspeed
synchronousspeed
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