A) IN Unbala nced conditiuns without Faulrs- •) Load Line current Ia, Ib , Ic •) Load Line voltages Vab, Voc, Vca :) Load power profile Pr, Qr, St, pfr

Dc circuit analysis : nodal, loop, and superfositiron a) In the Circuit given, deactivate the GV Source byusing Cny DC analysis calculate lo Cnd Vo due to the technique, 12V Sourd. b) Deactivale the DC Circuit analysis Vo 12V source and use any tech niquet calculate the to and due to the lev source. ) Calcu la le the nit lo and Vo due to both Sources.

The three-phase full-wave converter shown below is used to rectify the three phase (Y-connection) source signals. The six Thyristor are triggered in the sequence shown. Sketch for firing angle (a=90°) the output voltage (Vo), the phase current, the current for any two Thyristor in any one leg, and the load current (Ia). Then calculate (a) Thyristor average and r.m.s current. (b) Supply average and r.m.s current. (c) The normalized average output voltage. (d) The maximum output voltage. [Vdc = [1 - cos(60+ a)] Vml T If the line-to-neutral voltages are defined as 11 T, T T STA T. Load I sin od sin() ex-> Solve the question sin(with your own hands the corresponding line-to-line voltages are √31% sin (out + ) ---√(4)

Exercise 1: Resistances connected in Series-Parallel across a Sinusoidal AC Supply Calculate the following: a) Current flowing through the circuit. (Irms) b) Voltage across resistors R1, R2, R6. (Vrms) c) Current flowing through the resistors R2, R3, R4. (Irms) d) Calculate the peak to peak-peak voltage (Vpk-pk) and peak-peak current (I pk-pk) e) Calculate the time period of the waveform Consider V=4V RMS and F=2 kHz