i, 3_22 M 42 V 12 5 3452 57V M. www.tr (Solution: ₁=5A 25V " Find the values of currents 1₁, 12, 13 i,, Role? 13 752 www. i₂=-8A, ≤65 70v using 13 = 2A) ил Cramer's
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- please help me dont copy from google In a 250 km long, interphase voltage of 154 kV, 50 Hz three-phase transmission line, the diameter of the steel core aluminum conductors is 22 mm, the roughness coefficient of the conductors is 0.8, and the spacing between the phases is 4 m. Average air temperature along the line is 27 degrees, air pressure is 750 mm Hg. Calculate the total corona loss per phase at 1.5 times the operating voltage under these conditions (E0=21.2 kV/cm)A single phase, 50Hz transmission line connected between two buses having line resistance of 3Ω, inductive reactance of 0.2 Henry. Both the ends of transmission lines are connected with series capacitors of 400microfarads each for series compensation. Then series impedance of the line is a.(3-j31) Ω b.(3-j59.6) Ω c.(3+j31)Ω d.(3+j59.6) Ω 2- Fast decoupled algorithm is not as accurate as the exact Newton Raphson algorithm for Variable number of iteration Fixed number of iteration Variable time per iteration Fixed time per iterationA load line of infinite length is located at y = 3, z = 5; if ρL = 30nC / m. FindE at a) the origin, b) A (0,6,1); c) B (5,6,1).ANS .: - 47.6 ay - 79.3 az N / m; 64.7 ay - 86.3 az N / m; 64.7 ay - 86.3 az N / m
- please help solve part c , d and e A 350-km 450-kV, 60-Hz three-phase uncompensated line has a series reactance x=0.34 Ω/km and shunt admittance y=j 6.5 x 10 -6 S/km (positive-sequence). Calculate,(a) Characteristic impedance Zc(b) (γl)(c) The exact ABCD parameters of the line. (d) The wavelength λ in km.(e) The SIL in MW.An energy transmission line with a length of 130 km transmits 150MVA of power at 380 kV voltage. The conductors used have a conductivity of 35 [m / mm mm²] and a diameter of 28.11mm. The final temperature reached by this transmission line is 66 degrees. (NOTE = temperature coefficient of conductor a20deg = 0.00403deg ^ -1) Approximately how many kWatts is the total loss in the three-phase line at 20 degrees?Question 3) A 350-km 450-kV, 60-Hz three-phase uncompensated line has a series reactance x = 0.34 Q2/km and shunt admittance y=j 6.5 * 10 ^ - 6 S/km (positive-sequence). Calculate, (a) Characteristic impedance Zc (b) (yl) (c) The exact ABCD parameters of the line. (d) The wavelength X in km. (e) The SIL in MW.
- 60 Hz three-phase transmission line, Each single phase transmission line consists of two hard-drawn aluminium conductors with a radius of 2 cm spaced 1.2m apart. It delivers 150 MW at 220 KV at the receiving end with a power factor of 0.88 lagging. If the transmission line is 30 Km long and the temperature of the conductors is 20 C. Ignore the skin effect and consider the resistivity of Aluminium is (2.83 x 10-8), and permeability of free space, u= 4pi*10-7 N/A2 and permeability of it is= 8.85x10-12 F/m. - Find total series impedance. - Find total shunt admittance. - Find the voltage at the sending end using long-line equation.TOPIC: Transmission Lines, Power Systems, and Powerplants:INSTRUCTIONS:- Answer in this format: Given, Illustration, Required Conversion, Solution, Final Answer.- Step-by-step solution, do not skip even simple calculations to avoid confusion.- If answered in written form, make sure it is readable.PROBLEM:The per-phase constants of a 345-kV, three-phase, 150-km-long transmission line are resistance = 0.112/km, inductance-1.1 mH/km, and capacitance = 0.02 uF/km. The line supplies a 180-MW load at 0.9 power factor lagging. Using the nominal-m circuit, determine the sending-end voltage in kV. 351.2 349.3 348.7 350.8Calculate the total operating cost of a lossless system for a total load of 2000 MW. Thefuel-cost curves for two generators are given as,c(P) = 700 +18P, +0.06(P)?c2(P2) = 900+ 22P2 + -0.03 (P2)a) 122887.88 $/hrb) 153872.65 $/hrc) 124196.22 $/hrd) 138622.16 $/hr
- 1/In the Transmission Line Simulator, the Transmission Line is connected in Nominal-Pi Circuit. Select one: True Falsehe parameters of the 500km long transmission line are impedance z = 0.1 + j * 0.4ohm / km and admintance Y = j * 4.2 Siemens / km. At the end of the line, 988.1A current is drawn under 400kV voltage between phases. The angle of the current is -68.6 degrees. In which option the characteristic impedance value of the long transmission line is given correctly. a) 400 + j * 0 b) 441,23-j * 25,7520 c) 0 + j * 400 d) 401,23-j * 250 e) 310,97-j * 38,282A 30 mile, 3-phase transmission line delivers 8,000 kW at 33 kV, p.f. 0.8 lagging. The resistance and reactance of single conductor are 0.6 ohm and 0.72 ohm respectively per mile. Find the voltage at the sending end in kV.