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Example 14: Calculate the phase current and line current for three-phase Y-A connected shown in if...
connected 3-phase load consisting of three identical impedances Z=
48ے36.870 W.
3-Phase System Using MATLAB/Simulink Analysis of Y-Y connected balanced 3-phase circuit using Matlab A 2400-V rms balanced 3-phase 60-Hz supply is applied to a balanced Y-connected 3-phase load consisting of three identical impedances Z- 4836.870 W. The circuit diagram is shown in Fig. 3. Taking the phase to neutral voltage Van as reference. Calculate 1) The phase &line voltage Van, Vab 2) The phase current for any phase- line...
Q2. A three-phase unbalanced delta-connected load containing impedances Z1, Z2 and resistor R3 is connected to a three-phase power source of 380 V, 50 Hz in positive sequence A-B-C as shown in figure Q2. It is known that line current Ic is 54 292° A. The power consumption of load R3 is 18050 W. The impedance of Zi is 20 -70° 2. By taking VAB as reference, calculate B BB/ Z2 TBC figure Q2 (a) the line voltage VAB, VBC...
A three-phase system is shown in the figure below, with line-to-line voltage of 220 V rms, with ABC phase sequence, and with phase reference VAB shown in the phase diagram. The load is a balanced delta connection, with branch impedances Z = 30 - 40 ohms. Determine the magnitude of the phase current IAB (Select the one best answer from the choices given below.) L ail HA Oo oo a. 2.5 A b.4.4 A c.5.5 A O d.7.3 A e....
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....
Please show how this transformers problem is done. Thanks!
Problem 3ph [10 pts]: Y-connected source: A Y-connected balanced three-phase source is feeding a balanced three-phase load (it doesn't matter whether the load is Y or Delta connected). The voltage and current of the source are: van (t) - 340 sin (377t + 0.5236) ia(t) 100sin (377t 0.87266) Calculate the following: (a) The rms phase voltage (Van, magnitude and phase). (b) The rms line-to-line voltage (Vab, magnitude and phase) (c) The...
(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...
a) Find the magnitude of the line current IaA (A rms)
b) Find the phase of the line current IaA. (Phase deg)
c) Find the magnitude of VAB the line-to-line load voltage (V
rms)
d) Find the phase of VAB (deg)
e) Find the magnitude of the load phase current IAB (A rms)
f) Find the phase of IAB (deg)
g) Find the total power delivered to the load (kW)
h) Find the power lost in the line. (kW)
A...
4. (20 points) The three-phase Y-connected power supply has a line-to-neutral voltage KIN of 1.220° KV. A balanced-A load consisting of impedance Z1-20 30 Ω per phase is in parallel with a balanced-Y load having phase impedance of Z2 = 15245° Ω. Identical line impedances of Z1 = 3L15。Ω are in each of the three lines connecting the combined loads to the phase supply (a) Draw the per-phase equivalent circuit; (b) Find the line-to-line voltage Vab (magnitude and angle) at...
The following three-phase, balanced loads are connected across a three-phase, Y-connected 60 Hz source with a line-to-line voltage of 480 V. The loads are described below: • Load 1: ∆-connected, total three-phase apparent power is 30 kVA at 0.95 power factor lagging. • Load 2: ∆-connected, total three-phase active power is 20 kW at 0.7 power factor lagging. • Load 3: Y-connected, phase current is 30 A, and power factor is 0.9 pf leading. (a) Calculate the total complex power...