Question
a.
line commutation
b.
forced commutation
c.
either (a) or (b)
d.
none of the above
Posted under Electronics and Communication Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. The commutation method in an inverter, is
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. Inverters find applications in
View solution
Q. When a thyristor is conducting, the voltage drop across it is about
View solution
Q. The use of free wheeling diode in controlled rectifier improves the waveshape of load current.
View solution
Q. As the firing of a thyristor is delayed, the output voltage of a controlled rectifier decreases.
View solution
Q. In a certain inverter circuit each thyristor carries 26.67 A for 60°, 13.33 A for 120° and zero A for 180° of the cycle. The rms current of thyristor is
View solution
Q. The factor η for a UJT is about
View solution
Q. In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap is
View solution
Q. The cut in voltages for germanium and silicon diodes respectively as
View solution
Q. Assertion (A): A GTO can be turned on and turned off by gate pulses
Reason (R): A GTO can be turned off by negative gate pulse.
View solution
Q. In a full bridge single phase inverter feeding RLC load
View solution
Q. It is possible to use a freewheeling diode in
View solution
Q. Assertion (A): When the anode current of an SCR starts increasing during turn on process, the anode cathode voltage drop starts decreasing.
Reason (R): During turn on the reverse biased junction in SCR breaksdown.
View solution
Q. An SCR is triggered at 80° in the positive half cycle, only. The rms anode current is 25 A. If the firing angle is changed to 160°, the rms current is likely to be
View solution
Q. The output wave of a cycloconverter consists of a number of segments derived from the input wave.
View solution
Q. A class A chopper has an input voltage of 200 V. Ton = 1.5 ms and Toff = 4.5 ms. The duty cycle, average output voltage and ripple factor respectively are
View solution
Q. A TRIAC can be turned on :
View solution
Q. In a half bridge inverter the gate pulses of the two thyristors have a phase displacement of
View solution
Q. A fully controlled bridge converter can operate in quadrants
View solution
Q. A class E chopper
View solution
Q. A cycloconverter uses
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
