Curioustab

Home » Electronics and Communication Engineering » Power Electronics

In a 3 phase semiconverter, the firing frequency is

equal to line frequency
3 times the line frequency
6 times the line frequency
12 times the line frequency

Correct Answer: 3 times the line frequency

Explanation:

Since the circuit has 3 thyristors, firing frequency is three times the line frequency.

← Previous Question Next Question→

More Questions from Power Electronics

A single phase fully controlled bridge rectifier is fed by a source having inductance. The output voltage during overlap period is
A thyristor has its gate current zero. To start conduction the forward voltage must exceed
In the below figure the rms voltage across each half of secondary is 200 V. The peak inverse voltage across each of thyristor is
In a dual converter both converters work as rectifiers.
The waveshape of output voltage of half bridge inverter is
In an SCR, the anode current consists of
In a single phase full wave ac regulator, the firing angles in the two half cycles
In a single phase dual converter, a1, and a2 are firing angles of the two converters. Then
A dc chopper V = 500 V feeds an electric fraction dc series motor. The chopping frequency is 400 Hz. The series inductance required to limit the maximum current swing to 10 A is
Between which points does UJT exhibit negative resistance characteristics

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion