Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Electronics and Communication Engineering
»
Power Electronics
A dc series motor is coupled to a load whose torque is proportional to speed. It is fed by a single phase ac supply through a full converter. When speed is 500 rpm, firing angle is 45°. It is desired to raise the speed. It will be necessary to
decrease the firing angle
increase the firing angle
either decrease or increase the firing angle depending on the required speed
decrease the load torque
Correct Answer:
decrease the firing angle
← Previous Question
Next Question→
More Questions from
Power Electronics
The power factor at the input terminals of a cyclo- converter is generally
Modified Mc Murray full bridge inverter uses
A fully controlled bridge converter feeds a highly inductive load such that the load current can be assumed to be constant. The wave shape of input current is
The application of gate signal decreases the break over voltage of on SCR.
Ripple factor RF and form factor FF are related as
In integral cycle control of ac regulator, the input power factor is equal to
A single phase fully controlled bridge converter is feeding an RLE load. Input voltage is Vm sin ωt and firing angle is a. If average current is I0, then
In a 3 phase semiconverter, the output voltage becomes discontinuous for
A static excitation system uses
In a semi converter feeding a resistive load
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments