Given the complex numbers
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EBK POWER SYSTEM ANALYSIS AND DESIGN
- Determine: re, Zi, Zo, Av (use appropriate approximation)arrow_forwardA twin lead transmission line is embedded in a dielectric material with 3.2 relative permittivity. Its wires are separated by 2cm and their diameters are both 3mm. Compute for its characteristic impedance.arrow_forwardMany have witnessed the use of an electrical megaphone for amplification of speech to a crowd. A model of a microphone and speaker and the circuit model are shown. Find v(t) for vs = 10sin(100t)u(t), which could represent a person whistling or singing a pure tone. Answer: (1.55 e−0.6t−1.55 cos100t + 0.279 sin100t)Varrow_forward
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- A 50 km communication line has the following parameters: series resistance (R) = 21.4 W/km series inductance (L) = 1.0 mH/km shunt capacitance (C) = 0.062 mF/km shunt conductance (G) = 0.868 mS/km The frequency is 796 Hz and the line is terminated to avoid reflection. If the power at the receiving end is to be –20 dB (6mW reference) and the sending end voltage is 362 V, determine the power at the sending end.arrow_forwardA capacitor having reactance of 5.0 per unit is connected between the reference node and bus 2 of the circuit below. The original [Zbus] is also given. The original emf corresponding to bus 2 is V2 = 0.9534 angle -20.1803° per unit. Find 1. Draw Thevenin equivalent circuit at bus 2. 2. Calculate current drawn by the capacitor. 3. Calculate new Zbus after adding new capacitor.arrow_forwardThe +ve Y – axis (Semi – infinite line w.r.t. origin) carries a filamentary current of 4A in the -ay direction. Find H at (i) A (2,3,0) (ii) B (3,12,-4)arrow_forward
- Given the following pairs of voltages and currents, indicate whether the element involved is a capacitor, an inductor, or a resistor, and determine the values of C, L or R where ω= 157 rad/s a. v = 2000 sin ωt ; i = 5 cos ωt b. v = 80 sin(157t + 150°); i = 2 sin( 157t + 60°) c. v = 35 sin(ωt − 20°); i = 7 cos( ?? − 110°)arrow_forwardI have already answer but can please help to understand calculations..i will give vote A 240 kV, 3-phase, 50 Hz, 400 km transmission line has a capacitance to earth of 0.04 µF/km per phase. Calculate the inductance and kVA rating of the Peterson coil used for earthing the above system.arrow_forwardKindly provide a CLEAR and COMPLETE solution for the given problem.#2arrow_forward
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