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Electrical Machines
Induction Machines
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D.C Machines
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Synchronous Machines
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Transformers
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1
GATE EE 1998
MCQ (Single Correct Answer)
+1
-0.3
A synchronous generator connected to an infinite bus is overexcited. Considering only the reactive power, from the point of view of the system, the machine acts as
A
a capacitor
B
an inductor
C
a resistor
D
None of the above
2
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
During hunting of synchronous motor
A
negative phase sequence currents are generated
B
harmonics are developed in the armature circuit
C
damper bar develops torque
D
field excitation increases
3
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
In Figure. The characteristic that corresponds to the variation of synchronous reactance of synchronous motor with field current is GATE EE 1996 Electrical Machines - Synchronous Machines Question 8 English
A
curve $${\rm I}$$
B
curve $${\rm I}$$$${\rm I}$$
C
curve $${\rm I}$$$${\rm I}$$$${\rm I}$$
D
curve $${\rm IV}$$
4
GATE EE 1995
MCQ (Single Correct Answer)
+1
-0.3
A synchronous motor on load draws a current at a leading power factor angle $$\phi$$. If the internal power factor angle – which is the phase angle between the excitation e.m.f. and the current in the time phasor diagram is $$\psi$$, then the air gap excitation m.m.f lags the armature m.m.f by
A
$$\psi$$
B
$$\frac{\mathrm\pi}2+\psi$$
C
$$\frac{\mathrm\pi}2-\psi$$
D
$$\psi+\phi$$
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Questions Asked from Marks 1
GATE EE 2025 (2) GATE EE 2018 (1) GATE EE 2017 Set 1 (1) GATE EE 2017 Set 2 (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
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