ThreePhase Rectifiers Questions and Answers
Power Electronics Objective Questions & Answers
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A 3phase bridge rectifier charges a 240V battery. The rectifier is given a 3phase 230 V supply. The current limiting resistance in series with the battery is 8 Ω.
Find the power delivered to the battery (Pdc).
Find the power delivered to the battery (Pdc).
Correct!
Wrong!

From the diode rectifier circuit shown below, with phase sequence RYB, diodes D3 & D5 conduct when
Correct!
Wrong!

A 3phase bridge rectifier, has the average output voltage as 286.48 V. Find the maximum value of line voltage
Correct!
Wrong!

A stepdown deltastar transformer, with perphase turns ratio of 5 is fed from a 3phase 1100 V source. The secondary of this transformer is connected through a 3pulse type rectifier, which is feeding an R load.
The power delivered to the load is 6839.3 Watts.
The maximum value of the load current is √2 x 22 A.
Fin, the rms value of output voltage Vo (rms)
The power delivered to the load is 6839.3 Watts.
The maximum value of the load current is √2 x 22 A.
Fin, the rms value of output voltage Vo (rms)
Correct!
Wrong!

A stepdown deltastar transformer, with perphase turns ratio of 5 is fed from a 3phase 1100 V, 50 Hz source. The secondary of this transformer is connected through a 3pulse type rectifier, which is feeding feeding an R load. Find the average value of output voltage.
Correct!
Wrong!

For a 3phase 6pulse diode rectifier, has Vml as the maximum line voltage value on R load. The peak current through each diode is
Correct!
Wrong!

The circuit shown below is that of a
Correct!
Wrong!

A 3phase 6pulse diode rectifier is shown below with phase sequence RYB. The negative group of diodes (D4, D5, D6) conduct in sequence (from ωt = 0°)
Correct!
Wrong!

A 3phase bridge rectifier charges a 240 V battery. The rectifier is given a 3phase, 230 V supply. The current limiting resistance in series with the battery is of 8 Ω. Find the average value of battery charging current.
Correct!
Wrong!

From the diode rectifier circuit shown below, with phase sequence RYB, from ωt = 150° to 270°
Correct!
Wrong!
