ECE :: Power Electronics
-
A 3 phase fully controlled bridge converter is fed by a 3 phase system having phase voltage v = Vm sin ωt. The firing angle is a. The dc output voltage is
-
Which of these commutation methods uses an external pulse for commutation?
-
In a single phase full wave regulator feeding an R-L load, the power factor angle of load is θ. The range of control of firing angle a is
-
A separately excited dc motor is run from a dc source through a chopper. At 600 rpm and rated torque, the duty cycle of chopper is 0.8. At 600 rpm and half the rated torque, the duty cycle is likely to be
-
In a 3 phase bridge inverter with 180° mode of operation the numbers of thyristors conducting at one time are
-
A single phase full converter can operate in
-
In a 3 phase semiconverter, the freewheeling diode comes into operation only if firing angle
-
In the circuit of figure, the load current when thyristor is off
-
A full bridge inverter is fed by a battery of 30 V. The rms value of output voltage is
Whatsapp
Facebook
