In a 3 phase semiconverter, the dc output voltage for a certain firing – McqOptions

MCQOPTIONS

1.	In a 3 phase semiconverter, the dc output voltage for a certain firing angle is 50% of the maximum possible value. The firing angle is
A.	30¬∞
B.	60¬∞
C.	90¬∞
D.	120¬∞
Answer» D. 120¬∞

Discussion

No Comment Found

Related MCQs

For 3 phase rotary converters, when power factor is unity. the ac line to dccurrent ratio is
When a thyristor turn on, the gate drive:
In a three phase half-wave cycloconverter ___________
The frequency of the ripple in the output voltage of 3-phase semiconductor depends on:
Current derating may be necessary when thyristors areoperating in
In a single phase half-wave thyristor circuit with R load & Vs=Vm sinωt,the maximum value of the load current can be given by
Least undulating current will be delivered by which mercury arc rectifier
Harmonics in 3 phase inverters can be reduced by using
In the method of phase control, the phase relationship between ___ & ___ iscontrolled by varying the firing angle
Calculate the output voltage of the Boost converter if the supply voltage is156 V and duty cycle value is .4.