2. Calculate the phase and line currents in the three-phase circuit given below, where Va = 202 40° V, Vb = 202 -120° V, and Vc = 202 < 120° V. a A Vc b Va 30 Ω J1002 C Vb 30 Ω j10Q www ell www C B wweee 30 Ω j10Q
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- Determine the line currents in the three-phase circuit of the figure given below, where Van = 450 / 0° V, Vbn=450 Z-120° V, and Vcn=450 120° V. Please report your answer so the magnitude is positive and all angles are in the range of negative 180 degrees to positive 180 degrees. Vcn Van a n Vbn Ia Ih I 6-j8Q2 A 6-j8Q2 N 6-j8Q2Given the following phase currents: Ia= 3.5+j3.5; Ib=-j3; and Ic+-2.6+j1.5. Determine the negative sequence current for phase A. A. 0.313+j0.678 B. -0.313 -j0.678 C. -0.313+j0.678 D. 0.313-j0.678A balanced load is connected in star across a 3 phasec415V 50Hz supply. The load consists of a coil of resistance 25 ohms and inducrance 0.5 henry in paeallel with a purw resistance of 28 ohms and a pure capaciror of 60microfarads capacitance ,in each branch. Calculate a. The line currents? Need full working and answer has to be 9.3A Formola for inductance XL= 2×3.142FL FORMOLA FOR CAPACITOR XC= 1/2×3.142×FC
- In the 3-phase circuit in the figure, f = 2000 Hz. Find line and phase voltages and currents for the load.(in amplitude and phase).a) Find the load current IABb) Find the line voltage Vbcc) Calculate the total complex power on the loads.The phase b voltage and the phase b current of a balance three-phase system are V = 220 sin (wt + 210°) and I = 10 sin (wt-180°). * A. 5256.44 W B. 5514.38 W C. 5715.76 W D. 6049.22 W
- A balanced load is connected in star across a 3 phasec415V 50Hz supply. The load consists of a coil of resistance 25 ohms and inducrance 0.5 henry in paeallel with a purw resistance of 28 ohms and a pure capaciror of 60microfarads capacitance ,in each branch. Calculate a. The line currents The answer has to be 9.3A1. Calculate the line currents for phase a, b and c.2. Calculate the line to neutral voltages at the load for phase A, B and C.3. Draw the phasor diagram of the source phase voltages and currents.From the given circuit, take V₁ = 240, Z₁ = 20-j3 ohms. Find the phase currents and line currents. Determine also the total complex power from the source. A LAB VL/120⁰ V V₁/0° V 15 L VL-120° V ZL B IBC ZL 21 W ICA C
- The instantaneous power absorbed by the load in a single-phase ac circuit, for a general R LC load under sinusoidal-steady-state excitation. is (a) Nonzero constant (b) Zero (c) Containing double-frequency componentsIn a balanced system, the phasor sum of the line-to-line voltages and the phasor sum of the line-to-neutral voltages are always equal to zero. (a) False (b) TrueThe power factor for an inductive circuit (R-L load), in which the current lags the voltage, is said to be (a) Lagging (b) Leading (c) Zero