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A balanced, positive-sequence, Y-connected voltage source with Ean-277Vr is applied to a balanced-A load with Za-30+jd0)Ω...
A balanced Y-connected load with a phase impedance of 10 + j 4 Ω is supplied by a balanced, positive sequence Δ-connected voltage source having Vab 208∠0o V. Given that the line impedance is 0.8 + j 0.3 Ω per phase. (i) Construct a single-phase equivalent circuit of the three-phase system. (ii) Calculate the phase currents of the load. (iii) Calculate the line voltages at the load.
A balanced Y-connected voltage source with ? = 480 + ?0 ?, is applied to a?? balanced Δ – connected load ?Δ = 45 ∠ 40°Ω. The impedance between the source and the load is ?? = 1 ∠ 86° Ω. Calculate the per-unit current and actual current in phase “a” of the line using ? = 15 ??? and ? = 480 ?
A balanced Ý-source with positive phase sequence (V,-200 ej4% yms) is connected to a balanced Y-load with Za (25 +j5)2. 45° 3. Sketch the circuit, labeling all values. Find the three line currents and line voltages a. b.
Sketch the 3-phase systems, and show your calculations: Problem (a): A positive-sequence balanced thrcc-phase wyc-connected source supplics powcr to a balanced wyc-connected load. The line voltage is 100 V. The line impedance is 2 ? per phase, and the load impedance is 50 +j30 ? per phase. Determine the load voltages if V an-00. Problem (b): A positive-sequence balanced three-phase wye-connected source supplies power to a balanced wye-connected load. The magnitude of the line voltages is 208 V rms. If...
Q1.A balanced 3-Phase Y-connected generator with positive sequence has an impedance of 0.2 + 0.5j ф and an intemal voltage of 120 V/d. The generator feeds a balanced 3- Phase Y-connected load having an impedance of 39 + 28j Ωφ. The impedance of the line connecting the generator to the load is 0.8 + 1Sj Ωφ. The a-phase internal voltage of the generator is specified as the reference phasor a) Construct the a-phase equivalent circuit of the system b) Calculate...
1. The phase voltage at the terminals of a balanced three-phase Y-connected load has an amplitude of 120V. The load has an impedance of 39 + j28Ω per phase. It is fed from a line having an impedance of 0.8 + j1.5 Ω per phase. The Y-connected source at the sending end of the line has an internal impedance of 0.2 + j0.5 Ω per phase. Calculate: a) The three line currents b) The three-phase voltages at the load c) ...
I. A balanced three-phase positive sequence wye-connected 60Hz source voltage has line-neutral voltage of V, 1000 V. It is connected to a three- phase wye connected load whose impedance is z 50+j37.7 2 a. Find line currents ia ib, ic and line-line voltages Vab, Vbo Vac b. Find the total complex power delivered to the load. c. Find delta-connected capacitor bank needed to bring the PF to 0.95 (lagging) of system. d. Re-calculate currents la, ib, io with Case c....
I. A balanced three-phase positive sequence wye-connected 60Hz source voltage has line-neutral voltage of V, 1000 V. It is connected to a three- phase wye connected load whose impedance is z 50+j37.7 2 a. Find line currents ia ib, ic and line-line voltages Vab, Vbo Vac b. Find the total complex power delivered to the load. c. Find delta-connected capacitor bank needed to bring the PF to 0.95 (lagging) of system. d. Re-calculate currents la, ib, io with Case c....
5 points uestion # Part-l Figure 4 shows a Δ-A configuration of a Δ-connected 3-phase source supplying power to a Δ- connected 3-phase load. The following parameters are known Source Voltage Source Impedance Load Impedance Feeder Impedance y, = 180.0-v (rms) z, = 0.15 +/0.45 Ω Z1-0.1 +/0.2 Ω lA Vp AB ZA Zi ICA Feeder Lines 3-Phase Source Balanced Load Figure 4 a. Compute the line currents IA IB, and lc. (5 points) b. Find the load currents IAB,...
A Δ-connected source supplies power to a Y-connected load in a three-phase balanced system. Given that the line impedance is (1 + j1) Ω per phase while the load impedance is (6 + j4) Ω per phase, find the magnitude of the line voltage at the load. Assume the source phase voltage Vab= 208 ∠0° V rms. The magnitude of the line voltage at the load is _______ Vrms.