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5 points uestion # Part-l Figure 4 shows a Δ-A configuration of a Δ-connected 3-phase source supp...
Q2. A three-phase unbalanced delta-connected load containing impedances Z1, Z2 and resistor R3 is connected to...
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 unbalanced delta-connected load is connected a three-phase 380 V, 50 Hz power source with phase sequence ABC as shown in figure Q2. The impedance of the loads Z1, Z2, and Z3 are 30 + j25 Ω, 25 + j10 Ω , 15 - j35 Ω respectively. By taking the phase
(a) the line voltages VAB, VBC, VCA; (3 marks)
(b) the phase currents Iab, Ibc and Ica of the load; (6 marks)
(c) the line currents IAa, IBb and ICc; (6 marks)
(d) the total real power PT dissipation of the load; (2 marks)
(e) the total reactive power QT of the load; (2 marks)
(f) the apparent power drawn by the load; and (2 marks)
(g) the overall power factor of the system. (2 marks)
5. For the Balanced 3-Phase delta () to delta (D) system below: Solve for the line to neutral vol...
5. For the Balanced 3-Phase delta () to delta (D) system below: Solve for the line to neutral voltages at the source (Van, Vbn, and Vcn), express your results in polar notation b. Draw the equivalent "one line diagram c. Solve for the line currents (laA, IbB, and IcC), express your results in polar notation d. Solve for the Delta currents IAB, IBC, and ICA, express your results in polar notation e. Solve for the line to neutral at the...
a) Find the magnitude of the line current IaA (A rms) b) Find the phase of...
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...
A Δ-connected source supplies power to a Y-connected load in a three-phase balanced system. Given that...
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.
Consider a 3-phase inverter with a delta-connected load operating from a 150 V DC input voltage....
Consider a 3-phase inverter with a delta-connected load operating from a 150 V DC input voltage. The AC load consists of 3 identical impedances with R = 6 Ω and L = 30 mH and a frequency of 60 hz. a. Determine the RMS line voltage VAB. b. Obtain mathematical expressions for each phase of the load currents, IAB, IBC, and ICA.
4. (20 points) The three-phase Y-connected power supply has a line-to-neutral voltage KIN of 1.220° KV....
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 a-phase voltage of an ideal balanced three-phase Y-connected source is Van-13.2kV<0° and the frequency is...
The a-phase voltage of an ideal balanced three-phase Y-connected source is Van-13.2kV<0° and the frequency is 60Hertz. The source is connected to a A-connected 3-phase balanced load of 100+j750 per phase. The lines are considered perfect. The phase sequence of the source is abc Use the a-phase sequence as a reference. a) Draw the 3-phase circuit b) Give Van, Voor and V, Derive VAB and derive Vec,and VcA c) Calculate lAB and derive Isc and IcA d) Calculate the total...
Q1.A balanced 3-Phase Y-connected generator with positive sequence has an impedance of 0.2 + 0.5j ф...
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...
A balanced Y-connected load with a phase impedance of 10 + j 4 Ω is supplied...
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.
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...
5. For the Balanced 3-Phase delta () to delta (D) system below: Solve for the line to neutral voltages at the source (Van, Vbn, and Vcn), express your results in polar notation b. Draw the equivalent "one line diagram c. Solve for the line currents (laA, IbB, and IcC), express your results in polar notation d. Solve for the Delta currents IAB, IBC, and ICA, express your results in polar notation e. Solve for the line to neutral at the...
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 a-phase voltage of an ideal balanced three-phase Y-connected source is Van-13.2kV<0° and the frequency is 60Hertz. The source is connected to a A-connected 3-phase balanced load of 100+j750 per phase. The lines are considered perfect. The phase sequence of the source is abc Use the a-phase sequence as a reference. a) Draw the 3-phase circuit b) Give Van, Voor and V, Derive VAB and derive Vec,and VcA c) Calculate lAB and derive Isc and IcA d) Calculate the total...
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...
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