Question 2 A transmission line of impedance (0.05 + j0.02) pu interconnects the buses of a switchyard and a bulk supply point. The receiving end apparent power is (1.0 + jo.6) pu and sending end voltage, 1/0°pu. Estimate the following: a) receiving end voltage after four iterations b) load current c) sending end apparent power
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A: The solution can be achieved as follows.
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A: Inductive reactance =2×π×f×L current =total power3×Vl×power factor sending end voltage=receiving…
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Q: 2. A balanced load of 30 MW is supplied at 132 kV, 50 Hz and 0-85 p.f. lagging by means of a…
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Q: Line parameter the value of 0.060/km 0.080/km r 12.8nF/km
A: Given data(As per question) Length of the transmission line is =50 km Resistance (r)= 0.06 Ohm/km…
Q: 2. A balanced load of 30 MW is supplied at 132 kV, 50 Hz and 0-85 p.f. lagging by means of a…
A: The answer value given with the question is incorrect. The solution can be achieved as follows.
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A: Sending end voltage= recieving end voltage+drop in line. Efficiency =power deliveredpower…
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A: A=0.9950B=36.2266Xcsh=B1-A=36.22661-0.9950=7245.32
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A: Given data, Ir=988.1 ∠-68.6°Vr=400 kVZ=50+j200 Ω By using short transmission line equations,…
Q: Question 5 (Mapped to ILO2) A three-phase transmission line, 10 km long delivers a load of 5000 kW…
A: The solution is given below
Q: j0.1 2.0+j0.5 j0.4 j0.2 1.01 3.
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Q: ) The Primary constants for a certain transmission line operating at 7.5 KHz PRIMARY CONSTANT VALUE…
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A: The solution can be achieved as follows.
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Q: 2. A balanced load of 30 MW is supplied at 132 kV, 50 Hz and 0-85 p.f. lagging by means of a…
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Q: TUTORIAL PROBLEIMS 1. Estimate the corona loss for a three-phase, 110 kV, 50 Hz, 150 km long…
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- A short 3 phase transmission line, connected to a 33kV, 50 Hz generating station at the sending end is required to supply a load of 10Megawatts at 0.8 power factor lagging, 30kV at the receiving end. If the minimum transmission line efficiency is to be limited to 96%, estimate the per phase values of resistance and inductance of the line.A three phase 60Hz, 120kV transmission line consisting of 3 conductors are placed at the corners of a triangle of sides 20, 15, and 8 meters. The radius of each line conductor is 1.5 cm. The length of the transmission line is 120 km. Assume epsilon subscript 0 equals 8.854 cross times 10 to the power of negative 12 end exponent. Determine d) Capacitance between the line (Cab) Answer for part 4 d) Capacitive reactance between the line( Xab) Answer for part 5 e) Charging Current for the 120 km Answer for part 6A three-phase transmission line is 160 km long and supplies a load of 12 MW at 0.85 powerfactor lagging at 80 kV, 50 Hz. Each conductor has a resistance of 0.275 Ω / km, an inductivereactance of 0.5625 Ω / km and a capacitance to neutral of 0.008625 µF / km. Calculate the line-to-line sending end voltage and the sending end current, using: i. The nominal T method.ii. The nominal Π method. If the sending end voltage remains constant, estimate the approximate rise in voltage at thereceiving end when the load is switched off. Hence calculate the per unit voltage regulation ofthe transmission line.
- A short 3-phase transmission line connected to a 33kV, 50 Hz generating station at the sending end is required to supply a load of 10 MW at 0.8 lagging power factor at 30 kV at the receiving end. If the minimum transmission efficiency is to be limited to 96%, estimate the per phase value of resistance and inductance of the line.Line parameters of the 50 km long 34.5 kV medium voltage distribution network supply line are under 80 kW, Coso = 0.8 reverse Load; a) Draw the equivalent circuit used in modeling the transmission line. b) Draw the phasor diagram of this transmission line. c) Calculate the per line voltage value. Note: According to the length of the line, leakage permeability and capacitance values will be neglected.In a 250 km long, interphase voltage of 154 kV, 50 Hz three-phase transmission line, the diameter of steel core aluminum conductors is 22 mm, the roughness coefficient of the conductors is 0.8, and the spacing between phases is 4 m. Average air temperature along the line is 27 degrees, air pressure is 750 mmHg. Calculate the total corona loss per phase at 1.5 times the operating voltage under these conditions (E0=21.2 kV/cm)
- A three phase, 60 Hz transposed transmission line is arranged horizontally with distances D12 = 5 ft; D23 = 5 ft; D13 = 10 ft. The outside diameter of the conductors is 0.721 inch and with GMR of 0.0243 ft. Determine the capacitance per phase of the line in microfarad per km.A balanced load of 30MW is supplied at 132 kV, 50Hz and 0.85 p.f. lagging by means of a transmission line. The series impedance of a single conductor is (20+j 52) ohms and the total phase-neutral admittance is 315 micro mho. Shunt leakage may be neglected. Using the nominal T and π approximation, calculate the line voltage at the sending end of the line. If the load is removed and the sending end voltage remains constant, find the percentage rise in the voltage at the receiving end.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 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.A Three-Phase, 131 KV, 50 Hz Transmission Line consists of 2.4 cm radius conductors spaced at 2.8 m apart in an equilateral triangular formation. If the Temperature is 42��� and Atmospheric Pressure is 74.75 cm of Hg, calculate the Critical Disruptive Voltage of the line. Take m0 = 0.83.A 3-ph, 60 Hz, 200 km long, 220 kV transmission line has per km per phase constants of resistance 0.033 Ω, inductive reactance 0.33 Ω, capacitive susceptance 3.3x10 -6 mho. The load at the receiving end of the line is 500 MW at 0.95 power factor leading and voltage has dropped to 209 kV. Using the PI model, calculate the voltage, current and power factor at the sending end. Please answer in typing format solution please only typing format Please I will like it please reply to