Exp. (A) Determine the sequence components of the voltages Va = 180 L00 V an V=150L108°V and V = 200L245ºV. Exp. (B) In a three phase system, la₁ = 90 L30° A and Ib2 = 40L90°A and = Ico : 20L-40° A. Find the line currents.
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- 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 componentsGiven 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-j0.678The 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
- = = Impedances Z₂ and z3 in parallel are in series with an impedance z₁ across a 100V,50Hz AC supply. Z₁ (6.25 +j1.25)ohms, Z₂ = (5 + j0)ohms and Z3 (5 - jxc)ohms. Determine the value of capacitance Xc said that the total current of the circuit will be in phase with the total voltage. What is then the circuit current and power?How to solve for a (+) Phase Sequence and (-) Phase Sequence? Give an example and explain the steps.A 30-0 resistor, a 15-02 inductive reactance, and a 12-02 capacitive reactance are connected in parallel across a 120-V 60-Hz line. Find (a) the phasor branch currents, (b) total current and phase angle, (c) impedance, and (d) power drawn by the circuit.
- Impedances Z2 and Z3 in parallel are in series with impedance Z1 across a 100 V, 50 Hz ac supply. Z1 =6.25 + j1.25 ohm; Z2 = 5+ j0 ohm and Z3 = 5-jXc ohm. Determine the value of capacitance of Xc such that the total curent of the circuit will be in phase with the total voltage. When is then the circuit current and power.2. Two transformes A and B of ratings 5uokVA and 25okVA. Supplying a load kVA of 750 ato.8Pf lagging. open circunt valtajes are 400V and 410v respectively. Trusfarmn A has 1/ nsistance and 5/ ractance and traugformer B hay 1.$, mesistona and 41 reactance. Find (^) Crossacarent in the seandaries on no.load.ib) the load shared by euch transfarmer Their areabout Three-phase Circuits
- Need asap pls help. Solve for the voltages across and currents through each component. Show the complete solution and explain. The total power should be zero..Three impedances, Z1 =10020.Q, Z2 =63.2518.43.2 and Z3 =1002-90•Q are connected in star. Convert the star to an equivalent delta connection. And draw the star network and also the equivalent of delta connectionThe one-line diagram of a three-phase power system is shown in the above figure. The line impedances are in per- unit on a 100-MVA base, and the line admittances are neglected. Use Gauss-Seidel method in Matlab to analyze the system the tolerance of error is 10-3. Then anwser the questions as follows. V, = 1.05200 0.01+ j0.025 300 + j200 MVA 0.015 + j0.035 150 MW 200 +j150 MVA 0.01+ j0.03 |V = 1.03 The admittance matrix (Y_bus)? 0.02 + jo.04 0.0125 + jo.03 2.