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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 2024
MCQ (More than One Correct Answer)
+2
-0

Which of the following options is/are correct for the Automatic Generation Control (AGC) and Automatic Voltage Regulator (AVR) installed with synchronous generators?

A

AGC response has a local effect on frequency while AVR response has a global effect on voltage.

B

AGC response has a global effect on frequency while AVR response has a local effect on voltage.

C

AGC regulates the field current of the synchronous generator while AVR regulates the generator’s mechanical power input.

D

AGC regulates the generator’s mechanical power input while AVR regulates the field current of the synchronous generator.

2
GATE EE 2023
Numerical
+2
-0

A three-phase synchronous motor with synchronous impedance of 0.1+j0.3 per unit per phase has a static stability limit of 2.5 per unit. The corresponding excitation voltage in per unit is _________ (Round off to 2 decimal places).

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3
GATE EE 2022
Numerical
+2
-0

A star-connected 3-phase, 400 V, 50 kVA, 50 Hz synchronous motor has a synchronous reactance of 1 ohm per phase with negligible armature resistance. The shaft load on the motor is 10 kW while the power factor is 0.8 leading. The loss in the motor is 2 kW. The magnitude of the per phase excitation emf of the motor, in volts, is ________. (round off to nearest integer).

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4
GATE EE 2017 Set 2
Numerical
+2
-0
Two generating units rated $$300$$ $$MW$$ and $$400$$ $$MW$$ have governor speed regulation of $$6\% $$ and $$4\% $$ respectively from no load to full load. Both the generating units are operating in parallel to share a load of $$600$$ $$MW.$$ Assuming free governor action, the load shared by the larger unit is _______ $$MW.$$
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Questions Asked from Marks 2
GATE EE 2024 (2) GATE EE 2023 (1) GATE EE 2022 (1) GATE EE 2017 Set 2 (3) GATE EE 2017 Set 1 (1) GATE EE 2016 Set 1 (1) GATE EE 2015 Set 2 (1) GATE EE 2014 Set 2 (3) GATE EE 2014 Set 3 (1) GATE EE 2014 Set 1 (1) GATE EE 2011 (1) GATE EE 2010 (2) GATE EE 2009 (1) GATE EE 2008 (2) GATE EE 2007 (2) GATE EE 2006 (3) GATE EE 2005 (2) GATE EE 2004 (6) GATE EE 2003 (1) GATE EE 2002 (1) GATE EE 2001 (1) GATE EE 2000 (1) GATE EE 1999 (1) GATE EE 1998 (1) GATE EE 1997 (1) GATE EE 1993 (3)
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