[Q3] : Three-phase bridge rectifier supply's a resistive load with dc power of 200kW; the ammeter reading
is 60Arms current, at supply frequency 50Hz.
Determine:
1 -the average and rms load voltage and current;
2-the diode parameters, efficiency and TUF;
3 -the circuit inductance caused average voltage
reduction with 4% of the average value;
4- find the average net voltage when phase C
failed, and plot the output voltage for this case.
5- Now the voltage of C phase is restored but D2 failed.... determine the percentage de voltage reduction.
Solution:
6- Now for fully restored system, derive a Fourier series for harmonic decomposition and build plot the
relationship between Vmn=f (harmonic order).
[Q3] : Three-phase bridge rectifier supply's a resistive load with dc power of 200 kW; the ammeter reading is 60 A rms current, at supply frequency 50 Hz . Determine: 1-the average and rms load voltage and current; 2-the diode parameters, efficiency and TUF: 3-the circuit inductance caused average voltage reduction with 4% of the average value; 4- find the average net voltage when phase C failed, and plot the output voltage for this case
5- Now the voltage of C phase is restored but D2 failed.... determine the percentage dc voltage reduction.
Solution:
6- Now for fully restored system , derive a Fourier series for harmonic decomposition and build plot the relationship between Vmn-f(harmonic order).