Two impedances, Z = 0.8+ j5.6 ohm and Z2 = 8-j16 ohm, and a single- phase...
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Two impedances, Z = 0.8+ j5.6 ohm and Z2 = 8-j16 ohm, and a single- phase motor are connected in parallel across a 200-V rms, 60-Hz supply as shown in Figure 8. The motor draws 5 KVA at 0.8 power factor lagging. (a) Find the complex powers S, S for the two impedances, and S3 for the motor. (b) Determine the total power taken from the supply, the supply current, and the overall power factor. (c) A capacitor is connected in parallel with the loads. Find the kvar and the ca- pacitance in F to improve the overall power factor to unity. What is the new line current? Two impedances, Z = 0.8+ j5.6 ohm and Z2 = 8-j16 ohm, and a single- phase motor are connected in parallel across a 200-V rms, 60-Hz supply as shown in Figure 8. The motor draws 5 KVA at 0.8 power factor lagging. (a) Find the complex powers S, S for the two impedances, and S3 for the motor. (b) Determine the total power taken from the supply, the supply current, and the overall power factor. (c) A capacitor is connected in parallel with the loads. Find the kvar and the ca- pacitance in F to improve the overall power factor to unity. What is the new line current?
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