1. The circuit shown below is a dc model of a residential power distribution circuit. Use the mesh-current method to find the branch currents /₁ - 16. 1Ω 125 V 125 V + Ans. i = 23.76 A i2 = 5.33 A ig 2 Ω = 18.43 Aig 1Ω ww i=15 A i5 = 9.77 A = 8.66 A – i 6Ω is Σ12Ω 16 324 Ω
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- Two power stations, A and B, are joined with an inter-connector having an impedance of (2.1+j6) Ω/line. They are synchronized to work at 101.4 kV. The voltage at power station A is advanced with an angle of 11° with respect to the voltage at power station B. They deliver power to their separate consumers as follow: Power station A: 400 MVA at a power factor of 0.92 lagging Power station B: 350 MVA at a power factor of 0.866 lagging instructions:round off to 2 decimal places 1.Determine the current within the interconnector (kA) and Determine the reactive power received by power station A (MVar) 2.Determine the active power received by power station B (MW) 3.Determine the active power loss within the interconnector (MW) 4.Determine the real power load of power station B (MW) and Determine the final loading of power station A (MVA) 5.Determine the final loading of power station B if its reactive power load is controlled to be reduced by 10%.the voltage drops across four series connected impedances are as follows V1 = 60sin (wt + pi/6) V2 = 100 cos (wt + pi/4) V3 = 75 sin (wt + 5pi/6) V4 = Vm sin (wt + θ) Find the values of Vm and θ if the voltage across the series is 180 sin (wt + 3pi/5) and draw the equivalent circuit diagram.Consider an LC circuit with L = 0.2 henry and C = 5x10^(-4) farad. At time t = 0, when both i (0) and q (0) are zero, the circuit is connected to a 120 cos (200t) volt alternating current generator. Find the current in the circuit at any time.
- an R-L circuit takes a current of 7amp that lags behind the 231-volt source by 35elec deg. calculate the power factor, power, impedance, resistance, and inductive reactance of the circuit.Two power stations, A and B, are joined with an inter-connector having an impedance of (2.1+j6) Ω/line. They are synchronized to work at 101.4kV. The voltage at power station A is advanced with an angle of 11° with respect to the voltage at power station B. They deliver power to their separate consumers as follow: Power station A: 400 MVA at a power factor of 0.92 laggingPower station B: 350 MVA at a power factor of 0.866 lagging Instructions :round of to 2 decimal places 1.Determine the real power load of power station B (MW) 2.Determine the final loading of power station A (MVA) 20.Determine the final loading of power station B if its reactive power load is controlledto be reduced by 10%.Two impedances Z1 = 3 + j4 and Z2 = 5 – j8.66ohms respectively are connected in parallel. If the combination is connected across a 240 V AC Source, how much is the total current? a. 44.4 A b. 42.1 A c. 40.6 A d. 39.9 A e. none of the above
- termining the impedance and current of the system, the voltage across the resistor, and the voltage across the inductor. Could you please forward the response as a print of a handwritten answer? I got these two answers earlier. Which of them would be correct Impedance Z= (1000 + j 90.836) ohm Current I= 0.219∠-5.19° A Voltage across resistor VR = 219.097∠-5.19° V Voltage across inductor VL = 165.195∠84.81° V Impedance will be Z= 1004.052 ∠ 5.12° Current will be i = 0.221 ∠ -5.19° A. Volatge across resistor will be VR = 211.9∠ -5.19° V Volatge across inductor will be VL = 165.12 ∠ 84.81°VFor the circuit below with R1 = 10Ω, R2 = 12Ω, X1 =9, A = 44, B = -16 degrees, calculate the reactive power supplied by the source to the circuit in VARS.4- In the circuit in the figure, R=8 Ohm, Rb=2 Ohm, XL=J1 Ohm, XC=J5 Ohm, V=16 < 0° V/50 Hz. (To be solved using Complex Numbers) a) IR, IXC and Ib currents b) Circuit current c) Impedance of the Circuit d) Calculate the Power Coefficient of the Circuit.
- An R-L-C circuit consists of a 55.4 ohm resistor, a 0.17 henry inductor, and an 82.8 uF capacitor. If the potential drop across the resistor is 72 volts, calculate: (a) the total voltage; (b) the total real, reactive and apparent powers; and (c) the overall power factor.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.circuit theory please I need the answer through 25 min, I do not have time more than 25 min Question 3) if a=166, b=27, c=3 and d=35, then find Zin for the above circuit. a. Zin = 996,00 + j213,14 ohm b. Zin = 664,00 + j267,14 ohm c. Zin = 863,20 + j186,14 ohm d. Zin = 1328,00 + j321,14 ohm e. Zin = 1660,00 + j294,14 ohm f. Zin = 1660,00 + j429,14 ohm g. Zin = 1460,80 + j280,64 ohm h. Zin = 1195,20 + j483,14 ohm