A 3-phase, 50 Hz, 30 km long overhead line supplies 425 kW at 22 kV, 0.9 p.f. lagging. The line resistance is 5 Q per phase and line inductance is 10 mH per phase. Calculate the Reactance of the Line, Current flowing through the transmission line, Sending end voltage, Voltage regulation and Efficiency of transmission.
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Q: A 3-phase, 50 Hz, 45 km long overhead line supplies 525 kW at 11 kV, 0.8 p.f. lagging. The line…
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Q: A single phase transmission line is delivering 440 kVA load at 10 kV. Its resistance is 4.5 Q and…
A: Note: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…
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A: Given values are - PL=12kWcosϕ=0.8R=5ohmX=10ohmVL=440∠0oV
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Q: supplies 500 kW at 22 kV, 0.6 p.f. lagging. The line resistance is 5.5 Q per phase and line…
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Q: (Q) A 10 mile transmission line with an impedance of (0.122+j0.849) Ω per mile is delivering 230A…
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A: As per the guidelines of Bartley we supposed to answer first three subpart only .
Q: A single phase, 50 Hz, overhead transmission line supplies 1200 kW at 24 kV, 0.8 p.f. lagging. The…
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Q: (b) A 3-phase transmission line has a resistance per phase of 50 and an inductive reactance of 150…
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Q: A 400 km long, 50 Hz transmission line having series resistance and inductance of 0.12/km and…
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Q: A 60 Hz, three-phase transmission line is 100 miles long. It has a total series impedance of {35 +…
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Q: Problem 2: An overhead three phase transmission line delivers 5000 kW at 22kV at 0.8 pf lagging. The…
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Q: A 3-phase, 60 Hz, 50 km long overhead line supplies 575 kW at 11 kV, 0.8 p.f. lagging. The line…
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Q: A 3-phase, 60 Hz, 50 km long overhead line supplies 525 kW at 11 kV, 0.7 p.f. lagging. The line…
A: Note: We are authorized to answer three subparts at a time, since you have not mentioned which part…
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- Consider the 500 kV, three phase bundled conductor line as shown in the figure below. Find the line to neutral capacitance. 0.5 m 30 mm (0) (O to Ine 15 m 15 mA three-phase transposed line is composed of one ACSR Bobolink conductor per phase with a horizontal spacing of 11 meters as shown in the figure. phase with a horizontal spacing of 11 meters as shown in the figure. The conductors have a diameter of 3.625 cm and a RMG of 1.439 cm. Calculate the inductance and capacitance to the neutral of the line.(a) A three phase transposed transmission tower comprises of three-bundled conductor and double-circuit configured in vertical position as shown in Figure 2. Each sub-conductor in each circuit and each phase is an ACSR type, size 477,000 cmil and stranding 26/7. Given the GMR of each sub-conductor is 0.8809 cm and diameter is 2.1793 cm, analyze: i. Inductance in mH/km ii. Capacitance in µF/km 0.75m 7.5m b' 4m 4m 45cm Figure 2
- In a short paragraph, explain the need to use bundled phase conductors in HV, EHV, and UHV 3-phase power transmission lines.A three-phase symmetrical double circuit line is arranged in a horizontal plane as shown in figure below. Calculate and derive an expression for the transposed line for the inductance. Assume balanced equally distributed loads3-phase single circuit bundled conductor line with two sub-conductors per phase has horizontalspacing with 6.1 m between the centre lines of adjacent phases. The distance between the subconductorsof each phase is 30.5 cm and each sub-conductor has a diameter of 2.54 cm. Find theinductance per phase per km. [0.988 mh]
- 2. A three-phase 60-hz transmission line has its conductors arranged in a triangular formation so that two of the distances between conductors are 20 ft and the third is 40 ft. The conductors are ACSR Rook. Determine the capacitance to neutral in microfarads per mile and the capacitive reactance to neutral in ohm-miles. If the line is 115 mi long, find the capacitance to neutral and capacitive reactance of the line.In a three phase overhead system , each line is suspended by a string of three insulators. The voltages across top unit and the middle unit are 8KV and 11KV respectively. Calculate a) ratio of shunt capacitance to self capacitance b) line voltage c) string efficiency.There are conductor x (number of conductors = 3) and conductor y (number ofconductors = 2’) for a 50 Hz single phase two-conductor line as shown in Figure below. The linelength is 20 miles. a. Calculate GMRx, GMRy and GMD b. Calculate Lx, Ly and total L in H/m. c. Calculate XL in /m per circuit.
- 8:13 O O all 83 moodle.nct.edu.om/mod/q 2 P Flag question In a three phase overhead system , each line is suspended by a string of three insulator. The voltages across top unit and the middle unit are 8kV and 23kV respectively. Calculate a) Ratio of shunt capacitance to self capacitance b) Line voltage c) String efficiency. Ratio of shunt capacitance to self capacitance (K) Voltage across the the line insulator (V3) Phase Voltage (Vphase) Line voltage (VL) String Efficiency + IIA 60 Hz, three-phase, transposed transmission line, is designed with three bobolink conductors per phase, in horizontal arrangement as shown in the figure below. Distance between consecutive phases is D = 6.2 m and distance among bundle conductors is h =0.5m. Each conductor has a radius of 18 mm and a GMR of 14.39mm. The per phase resistance is 1.677x10-5 2/m. r= 18 mm GMR= 14.39 mm a b h D D The per phase shunt admittance assuming zero conductance in µO/km is: О a., 5.4347 O b. j5.3316 О с /4.2266 O d. j4.0973 O e. 59630.2922 + j10.9770A three – phase, 13 – kV transmission line delivers 8 MVA of load. The per – phase impedance of the line is (0.01 + j0.05) pu, referred to a 13 – kV, 8 – MVA base. What is the voltage drop across the line?