McqMate
Sign In
Hamberger menu
McqMate
Sign in
Sign up
Home
Forum
Search
Ask a Question
Sign In
McqMate Copyright © 2025
→
Electrical Engineering
→
Power Electronics
→
In a phase controlled 3 phase ac voltage...
Q.
In a phase controlled 3 phase ac voltage controller, the harmonic present is
A.
2
B.
3
C.
5
D.
7
Answer» B. 3
3.5k
0
Do you find this helpful?
23
View all MCQs in
Power Electronics
Discussion
No comments yet
Login to comment
Related MCQs
A single-phase voltage controller, using one SCR in anti parallel with a diode, feeds a load R and Vs = 230 V. For a firing angel of 90° for the SCR, the PMMC voltage connected across R would read
A single phase voltage controller has input of 230 V and a load of 15 Ω resistive. For 6 cycles on and 4 cycles off, determine the average value of SCR current.
A single phase fully controlled bridge rectifier is fed by a source having inductance. The output voltage during overlap period is
In a 3 phase full wave regulator feeding a star connected resistance load the input voltage is 400 V line to line. The firing angle is 160°. The line to line output voltage would be
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
Under harmonic free load voltages, the 3 phase VSI
In the method of phase control, the phase relationship between ___ & ___ is controlled by varying the firing angle
A 3 phase induction motor is fed by a 3 phase ac regulator to change the stator voltage. The variation in speed will be more if
The load voltage of a chopper can be controlled by varying the
In a fully controlled bridge converter feeding a resistive load the waveshapes of output voltage and output current