1
GATE EE 2014 Set 1
Numerical
+1
-0
A star connected 400 V, 50 Hz, 4 pole synchronous machine gave the following open circuit
and short circuit test results:
Open circuit test: VOC = 400 V (rms, line–to–line) at field current, If = 2.3 A
Short circuit test: ISC = 10 A(rms, phase) at field current, If =1.5 A
The value of per phase synchronous impedance in Ω at rated voltage is __________.
Open circuit test: VOC = 400 V (rms, line–to–line) at field current, If = 2.3 A
Short circuit test: ISC = 10 A(rms, phase) at field current, If =1.5 A
The value of per phase synchronous impedance in Ω at rated voltage is __________.
Your input ____
2
GATE EE 2011
MCQ (Single Correct Answer)
+1
-0.3
A three-phase, salient pole synchronous motor is connected to an infinite bus. It
is operated at no load a normal excitation. The field excitation of the motor is
first reduced to zero and then increased in reverse direction gradually. Then the
armature current
3
GATE EE 2008
MCQ (Single Correct Answer)
+1
-0.3
Distributed winding and short chording employed in AC machines will result in
4
GATE EE 2008
MCQ (Single Correct Answer)
+1
-0.3
In a stepper motor, the detent torque means
Questions Asked from Synchronous Machines (Marks 1)
Number in Brackets after Paper Indicates No. of Questions
GATE EE 2018 (1)
GATE EE 2017 Set 2 (1)
GATE EE 2017 Set 1 (1)
GATE EE 2014 Set 3 (1)
GATE EE 2014 Set 1 (1)
GATE EE 2011 (1)
GATE EE 2008 (2)
GATE EE 2007 (1)
GATE EE 2006 (1)
GATE EE 2005 (1)
GATE EE 2004 (2)
GATE EE 2003 (2)
GATE EE 2001 (3)
GATE EE 2000 (1)
GATE EE 1999 (1)
GATE EE 1998 (1)
GATE EE 1996 (2)
GATE EE 1995 (1)
GATE EE 1992 (2)
GATE EE Subjects
Electric Circuits
Electromagnetic Fields
Signals and Systems
Electrical Machines
Engineering Mathematics
General Aptitude
Power System Analysis
Electrical and Electronics Measurement
Analog Electronics
Control Systems
Power Electronics