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 thyristor has a turn on time of 6 μs. If the anode circuit is inductive, the turn on time will be
6 μs
less than 6μs
more than 6 μs
either 6 μs or less
Correct Answer:
more than 6 μs
Explanation:
Inductive load increases the turn on time.
← Previous Question
Next Question→
More Questions from
Power Electronics
In a multiphase chopper, all choppers operate together.
The value of capacitor C for dynamic equalising circuit of series connected thyristors is determined by
An electric heater is controlled by thyristors through on-off control. If a = 0.4, the heating is
A single phase half wave rectifier is feeding a resistive load. When a = 0, dc output voltage is 127 V. When a = 30°, the dc output voltage will be about
A 3 kV circuit uses SCR of 800 V rating. If derating is 25%, the number of SCRs in series is
The terminals of a power MOSFET are called
In a 3 phase fully controlled converter the firing frequency is
In a single phase full wave regulator, the firing angles in the positive and negative half cycles are generally
The dynamic equalising circuit consists of a series combination of capacitor C and resistor RC across each thyristor. This resistance RC (along with parallel connected diode)
A dc separately excited motor has constant field current. The armature is fed from a single phase supply through a full converter. When a = 0, speed is 500 rpm. If a = 45°, the speed is likely to be
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments