Electrical Machines
Induction Machines
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Synchronous Machines
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1
GATE EE 2022
Numerical
+1
-0

The frequencies of the stator and rotor currents flowing in the three-phase 8-pole induction motor are 40 Hz and 1 Hz, respectively. The motor speed, in rpm, is ________. (round off to nearest integer).

Your input ____
2
GATE EE 2017 Set 1
MCQ (Single Correct Answer)
+1
-0.3
A 4 pole induction machine is working as an induction generator. The generator supply frequency is 60 Hz. The rotor current frequency is 5 Hz. The mechanical speed of the rotor in RPM is
A
1350
B
1650
C
1950
D
2250
3
GATE EE 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
A 3-phase, 4-pole, 400 V, 50 Hz squirrel-cage induction motor is operating at a slip of 0.02. The speed of the rotor flux in mechanical rad/sec, sensed by a stationary observer, is closest to
A
1500
B
1470
C
157
D
154
4
GATE EE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
The direction of rotation of a single-phase capacitor run induction motor is reversed by
A
interchanging the terminals of the AC supply.
B
interchanging the terminals of the capacitor.
C
interchanging the terminals of the auxiliary winding.
D
interchanging the terminals of both the windings.
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement