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XX=18, R1=36, Load B is in second picture Load C is load B from the second...
A balanced Y connected load with a phase impedance of 40+j25Ω is supplied by a balanced, positive sequence ∆-connected source with a line voltage of 210V. Calculate the phase currents. Use Vab as a reference.
1, Two balanced three-phase loads are in parallel. Load 1 draws 10 kW at 0.8 PF lagging Load 2 draws 20 kVA at 0.6 PF leading a. b. The loads are supplied by a balanced three-phase 480 Vu source. (a) Draw the power triangle for the combined load. (b) Determine PF of the combined load. (c) Determine the magnitude of the line current from the source. (d) Y-connected inductors are now installed in parallel with the combined load. What value...
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.
(4b) Two parallel three-phase loads are connected to a three-phase A connected source through a line. The line voltage VAB at the two loads is 200 230° V. One load is configured in Y and absorbs three-phase real power 40KW with a 0.9 leading power factor, and the other load s configured in A with ZA = 12+j150 per phase. Please calculate (a) The line currents (11pts) (b) The power factor at the combined load (3pts) (c) The phase currents...
ELE2601/101/3/2019 QUESTION 4 A 400 V three-phase, 50 Hz system, ABC sequence supplies the following loads: A star-connected load with the following phase impedances: A delta-connected load of equal phase impedances: Use VAB as reference and determine the following quantities: 4.1 The magnitude and angle of the currents drawn by the star-connected load (IAN; lBN; ICN). 4.1.1 The magnitude and angle of the phase (IAB; lBc; ICa) and line (lA; ls; Ic) currents drawn by the delta-connected load. 4.1.2 (12)...
3- Two balanced Y-connected loads in parallel, one drawing 25 kW at 0.6 power factor lagging and the other drawing 15 kVA at 0.8 power factor leading, are supplied by a balanced, three-phase, 480-volt source. (a) Draw the power triangle for each load and for the combined load. (b) Determine the power factor of the combined load and state whether lagging or leading. (c) Determine the magnitude of the line current from the source. (d) ∆- connected capacitors are now...
2. Two balanced three-phase loads are connected in parallel. One load with per phase impedance 21 ?, is connected in delta, and the other load has per phase impedance 15 2 and is connected in wye. Ignore the line impedance. If the line voltage is a 208230° Vrms, determine (a) the phase voltage for phase-a, ) the line current Ia*, (c) the phase currents in the delta load (d) the complex power of the load and the power factor.
Problem 7 Three three-phase wye-connected loads are in parallel across a three-phase supply. The first load draws a current of 10 A at pf- 0.93 (leading), and the second and third loads (each) draw a current of 20 A at pf= 0.85 (lagging). Suppose the line-to-line voltage is 240 V. Compute the following: a) The transmission line current b) The load power factor c) The complex power supplied by the source Problem 7 Three three-phase wye-connected loads are in parallel...
2. The line voltage VAB at the terminals of a balanced three-phase A-connected load is 4000<0° V. The line current is laA is 60.200 A. Determine the following; a. all the load currents (if the sequence is positive (abcabec.... (3 pts) b. all the load currents (if the sequence is negative (acbacb..... (3 pts) c. per-phase impedance of the load (3 pts)
A balanced Y -connected load having an impedance of 92+j21Ω/ϕ is connected in parallel with a balanced Δ -connected load having an impedance of 150∠ 0 ∘ Ω/ϕ . The paralleled loads are fed from a line having an impedance of j1Ω/ϕ . The magnitude of the line-to-line voltage of the Δ -load is 8150 V . A. Calculate the magnitude of the current in the line feeding the loads. B. Calculate the magnitude of the phase current in the...