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The ABCD constants of a 3-phase, 500 kV transmission line are D 0.98+0.0014j B 4+60j ohm...
The ABCD constants of a three-phase transmission line are: A=D=0.936 +0.016 = 0.936/0.98° B = 33.5+j...
The ABCD constants of a three-phase transmission line are: A=D=0.936 +0.016 = 0.936/0.98° B = 33.5+j 138 = 142 /76.4°2 C = (-5.18 +j914) x 10S The load at the receiving end is 50 MW at 220 kV with a power factor of 0.9 lagging. Find the magnitude of the sending end voltage and the voltage regulation. Assume that the magnitude of the sending-end voltage remains constant.
A 230-kV, three-phase transmission line has a per phase series impedance of z = 0.05j0.45 2...
A 230-kV, three-phase transmission line has a per phase series impedance of z = 0.05j0.45 2 per km and a per phase shunt admittance ofy = j3.4 x 10-6 siemens per km. The line is 80 km long. Using the nominal r model, determine (a) The transmission line ABCD constants. Find the sending end voltage and current, voltage regulation, the sending end power and the transmission efficiency when the line delivers (b) 200 MVA, 0.8 lagging power factor at 220...
PROBLEM: A 230-kV, 50 Hz, three-phase transmission line is 120 km long. The line has a per phase ...
PROBLEM: A 230-kV, 50 Hz, three-phase transmission line is 120 km long. The line has a per phase series impedance of z-0.05 +j0.45 Ω per km, and a per phase shunt admittance of y 3.4x10-6 Siemens per km. The line delivers (at the receiving end) 200 MVA, 0.8 lagging power factor at 220 kV. Now consider two cases: A- Assume that shunt parameters of the transmission line are ignored (i.e. even if this is a medium length transmission line, under...
A 3-phase, 50 Hz, long 300 Km transmission line delivers 60 MVA at 124 kV and...
A 3-phase, 50 Hz, long 300 Km transmission line delivers 60 MVA at 124 kV and 0-8 p.f. lagging. The total resistance 25.3 ohm and total reactance is 66.5 ohm and the admittance due to capacitance is 0.442*10-3 mho. Determine: (i) (ii) (iii) A,B, C and D constants of long T.L Sending end voltage, current and power factor Transmission efficiency, Voltage regulation
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
A 230kV three phase transmission line has a per phase series impedance of z=0.05+j0.45ohms per km...
A 230kV three phase transmission line has a per phase series impedance of z=0.05+j0.45ohms per km and a per phase shunt admittance of y= j3.4x10^-6 siemens per km. The line is 80km long. Using the medium line pi model: (a) Determine the transmission line model constants A, B, C, and D (b) Find the sending end (generating) voltage, current and power when the line delivers to a load of 1. 200 MVA with 0.8 lagging power factor at 220 kV...
A 220-kV, 150 MVA, 60-Hz, three-phase transmission line is 140 km long with the characteristic parameters...
A 220-kV, 150 MVA, 60-Hz, three-phase transmission line is 140 km long with the characteristic parameters of r = 0.09 Ohm/km, x = 0.88 Ohm/km, y = 4.1 * 10^-6 s/km. Calculate the ABCD constants of this transmission line. What is the sending end voltage if the line is supplying rated voltage and apparent power at 0.85 PF lagging? What is the voltage regulation of the transmission line for the conditions in question 11. What is the efficiency of the...
QUESTIONS 1- A 69-kV, three-phase transmission line is 20 km long. The line has a per...
QUESTIONS 1- A 69-kV, three-phase transmission line is 20 km long. The line has a per phase series impedance of 0,120 + 10,4325 per km. Detemine the sending end voltage, voltage regulation, the sending end power, and the transmission efficiency when the line delivers (a) 60 MVA, 0.8 lagging power factor at 60 kV. (b) 110 MW, unity power factor at 60 kV
A 220-kV, 150 MVA, 60-Hz, three-phase transmission line is 140 km long with the characteristic parameters...
A 220-kV, 150 MVA, 60-Hz, three-phase transmission line is 140 km long with the characteristic parameters of r = 0.09 ohm/km, x = 0.88 ohm/km, y = 4.1 * 10^-6 S/km. 10. Calculate the ABCD constants of this transmission line. 11. What is the sending end voltage if the line is supplying rated voltage and apparent power at 0.85 PF lagging? 12. What is the voltage regulation of the transmission line for the conditions in question 11. 13. What is...
A single circuit three phase transmission line which is 110miles long and made of Ostrich Problem 2: single circuit, three phase transmission line which is 110 miles long and made of Ostrich cond...
A single circuit three phase transmission line which is
110miles long and made of Ostrich
Problem 2: single circuit, three phase transmission line which is 110 miles long and made of Ostrich conduction ivers 70 MVA of power to a load with power factor of 0.85 lagging. If the V Lu is 169 KV and the spacing between each phase of conductors is 12.2 ft, determine: a) The line constants (ABCD) The sending end voltage, current, real and reactive power...
The ABCD constants of a three-phase transmission line are: A=D=0.936 +0.016 = 0.936/0.98° B = 33.5+j 138 = 142 /76.4°2 C = (-5.18 +j914) x 10S The load at the receiving end is 50 MW at 220 kV with a power factor of 0.9 lagging. Find the magnitude of the sending end voltage and the voltage regulation. Assume that the magnitude of the sending-end voltage remains constant.
A 230-kV, three-phase transmission line has a per phase series impedance of z = 0.05j0.45 2 per km and a per phase shunt admittance ofy = j3.4 x 10-6 siemens per km. The line is 80 km long. Using the nominal r model, determine (a) The transmission line ABCD constants. Find the sending end voltage and current, voltage regulation, the sending end power and the transmission efficiency when the line delivers (b) 200 MVA, 0.8 lagging power factor at 220...
PROBLEM: A 230-kV, 50 Hz, three-phase transmission line is 120 km long. The line has a per phase series impedance of z-0.05 +j0.45 Ω per km, and a per phase shunt admittance of y 3.4x10-6 Siemens per km. The line delivers (at the receiving end) 200 MVA, 0.8 lagging power factor at 220 kV. Now consider two cases: A- Assume that shunt parameters of the transmission line are ignored (i.e. even if this is a medium length transmission line, under...
A 3-phase, 50 Hz, long 300 Km transmission line delivers 60 MVA at 124 kV and 0-8 p.f. lagging. The total resistance 25.3 ohm and total reactance is 66.5 ohm and the admittance due to capacitance is 0.442*10-3 mho. Determine: (i) (ii) (iii) A,B, C and D constants of long T.L Sending end voltage, current and power factor Transmission efficiency, Voltage regulation
A 220-kV, 150 MVA, 60-Hz, three-phase transmission line is 140 km long with the characteristic parameters of r = 0.09 Ohm/km, x = 0.88 Ohm/km, y = 4.1 * 10^-6 s/km. Calculate the ABCD constants of this transmission line. What is the sending end voltage if the line is supplying rated voltage and apparent power at 0.85 PF lagging? What is the voltage regulation of the transmission line for the conditions in question 11. What is the efficiency of the...
QUESTIONS 1- A 69-kV, three-phase transmission line is 20 km long. The line has a per phase series impedance of 0,120 + 10,4325 per km. Detemine the sending end voltage, voltage regulation, the sending end power, and the transmission efficiency when the line delivers (a) 60 MVA, 0.8 lagging power factor at 60 kV. (b) 110 MW, unity power factor at 60 kV
A 220-kV, 150 MVA, 60-Hz, three-phase transmission line is 140 km long with the characteristic parameters of r = 0.09 ohm/km, x = 0.88 ohm/km, y = 4.1 * 10^-6 S/km. 10. Calculate the ABCD constants of this transmission line. 11. What is the sending end voltage if the line is supplying rated voltage and apparent power at 0.85 PF lagging? 12. What is the voltage regulation of the transmission line for the conditions in question 11. 13. What is...
A single circuit three phase transmission line which is
110miles long and made of Ostrich
Problem 2: single circuit, three phase transmission line which is 110 miles long and made of Ostrich conduction ivers 70 MVA of power to a load with power factor of 0.85 lagging. If the V Lu is 169 KV and the spacing between each phase of conductors is 12.2 ft, determine: a) The line constants (ABCD) The sending end voltage, current, real and reactive power...
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