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Power Electronics
Choppers and Commutation Techniques
Marks 1Marks 2Marks 5
Single and Three Phase Rectifier
Marks 1Marks 2Marks 5
Power Semiconductor Devices
Marks 1Marks 2
Ac Voltage Controllers
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Inverters
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1
GATE EE 2001
MCQ (Single Correct Answer)
+2
-0.6
A half-wave thyristor converter supplies a purely inductive load, as shown in figure. If the triggering angle of the thyristor is $${120^ \circ }$$, the extinction angle will be GATE EE 2001 Power Electronics - Single and Three Phase Rectifier Question 41 English
A
$${240^ \circ }$$
B
$${180^ \circ }$$
C
$${200^ \circ }$$
D
$${120^ \circ }$$
2
GATE EE 1998
MCQ (Single Correct Answer)
+2
-0.6
A $$3$$-phsae, fully controlled, converter is feeding power into a $$d.c.$$ load at a constant current of $$150A.$$ The $$r.m.s$$ current through each thyristor of the converter is
A
$$50A$$
B
$$100A$$
C
$${{150\sqrt 2 } \over {\sqrt 3 }}$$
D
$${{150} \over {\sqrt 3 }}$$
3
GATE EE 1998
MCQ (Single Correct Answer)
+2
-0.6
When the firing angle $$\alpha $$ of a single phase, fully controlled rectifier feeding constant $$d.c.$$ current into a load is $${30^ \circ }$$ , the displacement power factor of the rectifier is
A
$$1$$
B
$$0.5$$
C
$${1 \over {\sqrt 3 }}$$
D
$${{\sqrt 3 } \over 2}$$
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Questions Asked from Marks 2
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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