Total: 100marks General Directions: Answer as Directed Q1. The peak I/P line voltage for 3 phase...

Total: 100marks

General Directions: Answer as Directed

Q1. The peak I/P line voltage for 3 phase bridge rectifier is 400V with a resistive load of 30 ohm. Calculate the followings;

O/P rms voltage
O/P load current
The 6^th and 12^th harmonic order
Draw the I/P and O/P waveforms for the circuit

Q2 A three phase full-wave controlled rectifier supply a highly inductive load with R=10Ω. The supply is a 3-phase Y-connected with 208v r.m.s.

Calculate:

The load current when the Tyhyristors firing angle α=40⁰.
The power drawn from the supply
If the current value kept at (a) and α is changed to 135⁰, calculate the power returned to the supply

Expert Solution

Manojponduru answered 11 months ago

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