2. Three industrial loads are supplied by a single-phase ac power supply with the parameters Vs = 23040° V (rms), w = 31

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2 Three Industrial Loads Are Supplied By A Single Phase Ac Power Supply With The Parameters Vs 23040 V Rms W 31 1 (101.06 KiB) Viewed 40 times

2. Three industrial loads are supplied by a single-phase ac power supply with the parameters Vs = 23040° V (rms), w = 314.15 rad/s. The equivalent circuit is shown in Figure 2 and the loads' parameters are Load 1: R₁ = 100 Load 2: R₂jXc = (2-j6) Load 3: jXL = j20 Is Vs XL Figure 2 (a) Calculate the current Is. [4 marks] (b) Calculate the active and reactive power provided by the source. [6 marks] (c) Calculate the power factor at the source. [2 marks] (d) Provide a modification of the circuit shown in Figure 2 to achieve unity power factor at the source. Justify your answer with a short explanation and calculate the value of the circuit element(s) for the modified circuit. [5 marks] (e) Repeat the calculation in Part (d), assuming that the power factor should be corrected to 0.95 (lagging). [8 marks] R₁ ww R₂ Xc www