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Q4. Find the distance over which a load of 15 MW at a p.f. of 0.75...
A 3-phase 60 Hz 50 km transmission line delivers 20 MW of power to a load...
A 3-phase 60 Hz 50 km transmission line delivers 20 MW of power to a load at 69 kV and a power factor of 0.8 lagging. The line has the following parameters r = 0.1112/km L = 1.11 mH/km C = negligible Determine: The line impedance. (4 Marks) The "receiving end" phase voltage and current (7 Marks) The "sending end" voltage and current (10 Marks) The voltage regulation. (4 Marks)
A 3-ph, 50 Hz overhead transmission line 100 km long delivers 20 MW at 0.9 p.f...
A 3-ph, 50 Hz overhead transmission line 100 km long delivers 20 MW at 0.9 p.f lagging and at 110 kV. The resistance and reactance per phase per km are (0.2) Ω and (j0.4) Ω respectively, while capacitive admittance per phase per km is (j2.5 * 10-6) siemen. Using nominal T circuit, Find: 1- Constants A, B, C, and D. 2- Sending end voltage. 3- Sending end current 4- Sending end power factor 5- Voltage regulation of this T.L. 6-...
Show the solution for the following problem 1. A short, 230 kV transmission line has an...
Show the solution for the following problem 1. A short, 230 kV transmission line has an impedance of 5 cis 78 ohms. The load at the receiving end is 100 MW at 230 kV, 85% lagging power factor. What is the voltage at the sending end? a. 235.43 kV b. 226.3 kV c. 231.78 kV d. 238.21 kV 2. A 66 kv medium length transmission line delivers a load of 10 MW at 66 kv and 80% lagging P.F. the...
Example 22 A three-phase, 60-Hz, completely transposed 345-kV, 200-km line has two 795,000-cmil (403-mm2) 26/2 ACSR conductors per bundle and the following positive-sequence line constants: z 0.03...
Example 22 A three-phase, 60-Hz, completely transposed 345-kV, 200-km line has two 795,000-cmil (403-mm2) 26/2 ACSR conductors per bundle and the following positive-sequence line constants: z 0.032 + 10.35 /km y j4.2 x 10-6 S/km Full load at the receiving end of the line is 700 MW at 0.99 p.f. leading and at 95% of rated voltage. Assuming a medium-length line, determine the following: a. ABCD parameters of the nominal π circuit b. Sending-end voltage Vs, current Is, and real...
A short 3-phase, 33-kV power transmission line delivers a load of 7-MW at a power factor...
A short 3-phase, 33-kV power transmission line delivers a load of 7-MW at a power factor of 0.85 lagging and 33-kV. If the series impedance of the line is 20+j30 Ohms/phase, calculate The ABCD constants (parameters) The sending end voltage The load angle The voltage regulation The transmission efficiency
Solve all questions and submit through blackboard by March 26, 2020 Q. 1 (i) Classify short,...
Solve all questions and submit through blackboard by March 26, 2020 Q. 1 (i) Classify short, medium and long transmission lines based on distance (km). (ii) Classify transmission lines (low, medium, high, extra high) based on voltage levels (kV). (iii) What is commonly used conductor material for overhead transmission lines. Why Aluminum and copper materials are not used for conductors of transmission lines. Q. 2: A 3-phase, 230 kV transmission line having a length of 50 km is composed of...
please,I need the solution within 15 min Question 3 b: /Mark 17] (CLO 3 and 4)....
please,I need the solution within 15 min
Question 3 b: /Mark 17] (CLO 3 and 4). A 236 kV, three-phase medium transmission line is 211 km long. The line has a per phase series resistance R = 0.041 N, inductive reactance XL =j 0.3012, per kilo-meter for both, and shunt capacitive reactance X = 211.8 k2-km. Using the medium line model (nt- model) of transmission line to calculate: a- The transmission line A, B, C, and D constants. (Mark 3)...
A375-kV 60Hz three-phase 500 miles long transmission line with distributed line parameters per mi of r 0.1 Ohm, L-1.365 mH, c 0.00842 uF and g 0 delivers 200 MW to the load at 350 kV at 0.85 powe...
A375-kV 60Hz three-phase 500 miles long transmission line with distributed line parameters per mi of r 0.1 Ohm, L-1.365 mH, c 0.00842 uF and g 0 delivers 200 MW to the load at 350 kV at 0.85 power factor lagging. Find the following: 2. 50 pts. a) Characteristic impedance, attenuation constant and phase constant. b) sinhyL c) Transmission parameter A. d) Transmission efficiency if the sending end voltage and current are is 238.81419.07 kV/phase and 306.07228.783 A respectively using long-line...
Please help me with question 2 ASAP Question 1 [15 Marks A 500-kV, 60-Hz, 3-phase completely...
Please help me with question 2 ASAP
Question 1 [15 Marks A 500-kV, 60-Hz, 3-phase completely transposed overhead line has the resistance R=0.0201/km, Ds = 0.149m and r=0.16m. The horizontal phase spacings between the conductors are 10, 10, and 20 m. Calculate a) the line inductive reactance in /km, b) the line impedance in /km, c) the line capacitance-to-neutral Can in F/m, d) the admittance-to-neutral in S/km, neglecting the effect of the earth plane, and e) the exact ABCD parameters...
Problem 3: A three-phase, 60 Hz transmission line is built with an ACSR conductor. The conductor...
Problem 3: A three-phase, 60 Hz transmission line is built with an ACSR conductor. The conductor diameter is 0.68 inch, GMR = 0.023 ft., and AC resistance of 0.342 /mile at 50°C. The conductors are laterally spaced with D= 1.7 m between conductor centers. The line is 50 km long and supplies a 5 MW load. The line to line load voltage is 13.2 kV. [40 points] (a) Find the total impedance of the line. (b) Determine the sending-end voltage,...
A 3-phase 60 Hz 50 km transmission line delivers 20 MW of power to a load at 69 kV and a power factor of 0.8 lagging. The line has the following parameters r = 0.1112/km L = 1.11 mH/km C = negligible Determine: The line impedance. (4 Marks) The "receiving end" phase voltage and current (7 Marks) The "sending end" voltage and current (10 Marks) The voltage regulation. (4 Marks)
Example 22 A three-phase, 60-Hz, completely transposed 345-kV, 200-km line has two 795,000-cmil (403-mm2) 26/2 ACSR conductors per bundle and the following positive-sequence line constants: z 0.032 + 10.35 /km y j4.2 x 10-6 S/km Full load at the receiving end of the line is 700 MW at 0.99 p.f. leading and at 95% of rated voltage. Assuming a medium-length line, determine the following: a. ABCD parameters of the nominal π circuit b. Sending-end voltage Vs, current Is, and real...
Solve all questions and submit through blackboard by March 26, 2020 Q. 1 (i) Classify short, medium and long transmission lines based on distance (km). (ii) Classify transmission lines (low, medium, high, extra high) based on voltage levels (kV). (iii) What is commonly used conductor material for overhead transmission lines. Why Aluminum and copper materials are not used for conductors of transmission lines. Q. 2: A 3-phase, 230 kV transmission line having a length of 50 km is composed of...
please,I need the solution within 15 min
Question 3 b: /Mark 17] (CLO 3 and 4). A 236 kV, three-phase medium transmission line is 211 km long. The line has a per phase series resistance R = 0.041 N, inductive reactance XL =j 0.3012, per kilo-meter for both, and shunt capacitive reactance X = 211.8 k2-km. Using the medium line model (nt- model) of transmission line to calculate: a- The transmission line A, B, C, and D constants. (Mark 3)...
A375-kV 60Hz three-phase 500 miles long transmission line with distributed line parameters per mi of r 0.1 Ohm, L-1.365 mH, c 0.00842 uF and g 0 delivers 200 MW to the load at 350 kV at 0.85 power factor lagging. Find the following: 2. 50 pts. a) Characteristic impedance, attenuation constant and phase constant. b) sinhyL c) Transmission parameter A. d) Transmission efficiency if the sending end voltage and current are is 238.81419.07 kV/phase and 306.07228.783 A respectively using long-line...
Please help me with question 2 ASAP
Question 1 [15 Marks A 500-kV, 60-Hz, 3-phase completely transposed overhead line has the resistance R=0.0201/km, Ds = 0.149m and r=0.16m. The horizontal phase spacings between the conductors are 10, 10, and 20 m. Calculate a) the line inductive reactance in /km, b) the line impedance in /km, c) the line capacitance-to-neutral Can in F/m, d) the admittance-to-neutral in S/km, neglecting the effect of the earth plane, and e) the exact ABCD parameters...
Problem 3: A three-phase, 60 Hz transmission line is built with an ACSR conductor. The conductor diameter is 0.68 inch, GMR = 0.023 ft., and AC resistance of 0.342 /mile at 50°C. The conductors are laterally spaced with D= 1.7 m between conductor centers. The line is 50 km long and supplies a 5 MW load. The line to line load voltage is 13.2 kV. [40 points] (a) Find the total impedance of the line. (b) Determine the sending-end voltage,...
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