2. The line voltage VAB at the terminals of a balanced three-phase A-connected load is 4000<0°...
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....
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) ...
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.
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 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.
A balanced three phase load connected Y has impedance in each phase . A balanced three phase source 4000 V connected to the load through three phase line with identical impedance equals to . Find : a) Phase voltage to neutral source b) Current at line c) Line-to-line voltage of the load d) Apparent Power sent by 3 phase source 2+4j We were unable to transcribe this image
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...
A three-phase balanced wye connected source with a line voltage of 400v supplies a balanced delta connected load with the impedance of each phase ?∆ = 60∠450Ω. The impedance of the threephase line connecting the source and the load is ?l = 2∠300Ω/phase. Calculate the line current and phase current magnitudes of the load. Also find real and reactive power at the terminals (abc) of the load and at the terminals (ABC) of the source.
A balanced Δ-connected load has an impedance of 216−j288Ω/ϕ. The load is fed through a line having an impedance of 3+j5Ω/ϕ. The phase voltage at the terminals of the load is 7.0 kV . The phase sequence is negative. Use VAB as the reference. Calculate the line voltage Vab, Vbc, and Vca at the sending end of the line. Please show how you put it in the calculator.. I think that is where I keep getting errors.