A line voltage of 480 V and a line current of 225 mA are supplying a balanced, 3-ф load. If the load for each phase consists of a 1 k(2 resistor in series with a 3.7 μF capacitor: is the load Δ-or Y-...
Problem 8. Each phase of a balanced three-phase A-connected load consists of a 10mH inductor is series with the parallel combination of a 25μF capacitor and a 50Ω resistor. Assume zero line resistance and a phase voltage of 300V at 400 rad/sec. 1n Calculate the magnitude of the phase current, the line current and the total power absorbed by the load. Ip
A load consists of a 10 uF capacitor in series with a 282 N2 resistor. The voltage across the load is given by v(t)=23cos(6,384t+0.25) where the phase is in radians. What is the magnitude of the current flow in capacitor/resistor load in mA?
An AC source operating at 60-Hz with a maximum voltage of 170 V is connected in series with a resistor (R = 1.2 k Q) and capacitor (C = 2.5 μF). a) What is the maximum value of the current in the circuit? b) What is the maximum values of the potential difference across the resistor and capacitor? c) When the current is zero, what are the magnitudes of the potential difference across the resistor, capacitor and AC source? How much charge is...
1. A single-phase power system consists of a 480-V 60-Hz generator supplying a load of Zload = 4 + j3 2 through a transmission line of impedance Zline = 0.18 + 0.24 2. (a) (i) If the power system is exactly as shown in Fig. P3.1, calculate the line current voltage at the load. (ii) Calculate the transmission line losses. (b) Suppose a 1:10 step-up transformer is placed at the generator end of the transmission line and 10:1 step-down transformer...
A balanced A-connected load contains a 12.522 resistor in parallel with the series com- bination of a 10mH inductor and a 22uF capacitor in each phase. The a phase voltage is 120/40°VRMs at w = 1 rad/s. Assuming a positive phase sequence find the line AB current.
Problem #2 (60 pts). A balanced three-phase 240-V (rms, line-to-line source supplies a balanced three-phase load. If the line current IA is measured to be 15 A and is in phase with the line-to-line voltage, VBc, find the per-phase load impedance if the load is (a) Y-connected (b) A-connected. Calculate the complex ower S for each case.
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
9. A three phase balanced Y connected source is supplying three, three phase loads that are connected in parallel. First load is a y connected and has an impedance of 30+j40 ohms. The second load is absorbing a total of 150kVA at 0.5 power factor lagging. The third load is absorbing 150kVA at 0.5 power factor leading. The line to line source rms voltage is 2500V. i Find the load current in each load i) Find the total real and...
A 3-phase 4 wire symmetrical (balanced) Y-connected source with line voltage 340V (take the phase of VanVan to be 0 degrees) feeds an unbalanced three phase load formed by the impedances ZY1=14+j(14)Ω, ZY2=7+j(11)Ω and ZY3=20+j(−14)Ω connected in a Y (a.k.a. “star”, or a “tee”) configuration. Find the line currents, neutral current (current in the fourth “return” wire), and active power in each phase. (20 points) A 3-phase 4 wire symmetrical (balanced) Yconnected source with line voltage 340V (take the phase...
A balanced positive-sequence wye-connected 60-Hz three-phase source has line-to-line voltages of VL = 440 V rms. This source is connected to a balanced wye-connected load. Each phase of the load consists of a 0.5-H inductance in series with a 50-Ω resistance. Assume that the phase of Van is zero. home / study / engineering / electrical engineering / electrical engineering questions and answers / A Balanced Positive-sequence Wye-connected 60-Hz Three-phase Source Has Line-to-line Voltages ... Question: A balanced positive-sequence wye-connected...