Q1: For the symmetric directional coupler shown below, if the directivity is infinite and the forward attenuation is C=20 dB, find the transmitted power from the source (Pt)and ( p x). 1 mW B2 NPt Th E 2mW B1 200 mW C=20 dB Px ΖΙ
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- The VSWR on an 50-Ohm transmission line is 5. The distance between successive voltageminima is 80 cm while the distance from the load to the first minimum is 30 cm. What are thereflection coefficient and load impedanceThe 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 componentsi need the answer quickly
- Answer the question for all2. A three-phase transmission line has parameters Xc-6 k 2, R-3.25 2 and X₁-25 92, and delivers 300 MW to a load with both ends of the line at 230 kV. Draw a pi equivalent per-phase circuit of the line. On a per-phase basis, calculate the active power delivered to the load, the reactive power of the line and the active power delivered by the source. Based on these calculations can the equivalent circuit be simplified further?I turned the voltage value of the AC source into Vrms and got magnitude 16.97 & angle 10.Then calculated the impedance of Load A to be [ -9.28 - j23.4 ]. From that, I calculated the complex power of load B to be [ -2.42 + j6.33 ] my power factor calculation I am using inverse tan ( Q/P) , where Q i got -1.91 & P to be 5.559, which I got from my total complex power. If that helps. But I am calculating a negative power factor, so i am curious where I went wrong, Thank you!
- 4/ Which parameter is neglected or ignored in Short Transmission Lines? A. SHUNT CAPACITANCE ONLY B. SERIES CONDUCTANCE AND SHUNT CAPACITANCE C. SHUNT CONDUCTANCE AND SHUNT CAPACITANCE D. SHUNT CONDUCTANCE ONLYQuest- A single phase 50 Hz, system supplies an inductive load of 5000 kw at power factor 0.8 lag through a line 25 km. Resistance of the line is 0.0195 2/km and inductance = 0.36 mH/km, receiving end voltage is 10 kV. A capacitor is connected across the load to get the voltage regulation of 10%. Ratio of transmission line loss with and without shunt capacitor isThe load flow data for the sample power system are given below. The voltage magnitude at bus 2 is to be maintained at 1.04 p.u.Determine the set of load flow equations at the end of first iteration by using N-R method. Impedance for sample system Bus Code Impedances line charging admittance 1-2 0.08 + j0.24 0.0 1-3 0.02 + j0.06 0.0 2-3 0.06 + j0.18 0.0 Schedule of generation and loads: Bus Code Assured Voltages Generation Load…
- answer it i will rateA three phase system with Dab Dbc one conductor per phase as shown in the figure. The conductors are stranded and spaced as shown, (Dab=Dbc=4m). The outside diameter of the phase conductor is 2cm. The GMR of the phase conductor is 0.7788 cm. The value of inductance per phase is: Select one: O a. (1.2445 * 10A-3) mH/km O b. (1.1559 * 10^-6) H/m O c. (1.4562 * 10A-6) H/m O d. (1.2945 * 10A-6) H/m O e. (1.2445 * 10A-6) H/m