1
GATE EE 2022
Numerical
+1
-0.33
A 3-phase, 415 V, 50 Hz induction motor draws 5 times the rated current at rated voltage at starting. It is required to bring down the starting current from the supply to 2 times of the rated current using a 3-phase autotransformer. If the magnetizing impedance of the induction motor and no load current of the autotransformer is neglected, then the transformation ratio of the autotransformer is given by ________. (round off to two decimal places).
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
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
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
Questions Asked from Induction Machines (Marks 1)
Number in Brackets after Paper Indicates No. of Questions
GATE EE 2022 (3)
GATE EE 2017 Set 1 (1)
GATE EE 2017 Set 2 (1)
GATE EE 2016 Set 2 (1)
GATE EE 2016 Set 1 (1)
GATE EE 2015 Set 2 (1)
GATE EE 2014 Set 1 (1)
GATE EE 2014 Set 3 (2)
GATE EE 2014 Set 2 (2)
GATE EE 2013 (1)
GATE EE 2012 (1)
GATE EE 2010 (1)
GATE EE 2005 (2)
GATE EE 2004 (3)
GATE EE 2003 (2)
GATE EE 2002 (1)
GATE EE 1999 (2)
GATE EE 1998 (1)
GATE EE 1997 (1)
GATE EE 1996 (5)
GATE EE 1995 (1)
GATE EE 1994 (1)
GATE EE 1993 (1)
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