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kV/phase, 60 Hz, lossless short transmission line has a short-circuit power of 500 MVA/phase. Consider 7. A a unity power factor load connected at the receiving end. Assume that the sending end volta...
A long, lossless, three-phase transmission line is operating with 60 Hz with a nominal voltage of 400 kV. The distance between sending and receiving sides of the line is 350 km and the line’s series i...
A long, lossless, three-phase transmission line is operating with 60 Hz with a nominal voltage of 400 kV. The distance between sending and receiving sides of the line is 350 km and the line’s series inductance and shunt capacitance per length per phase are 0.92 mH/km and 0.016µF/km, respectively. If the line delivers 667.2461 MW at 400 kV with unity power factor at its receiving side, what would be the line-line voltage magnitude in the middle of the line?
Phase of a three-phase, 60 Hz, 300 km long power transmission line with a nominal operating...
Phase of a three-phase, 60 Hz, 300 km long power transmission line with a nominal operating line voltage of 500 kV. its inductance per 291 mH/phase, and its capacitance is 3.45uF/phase. Voltage between 500 kV phases from the end of the energy transmission line Under it, a load of 1000 MVA is fed with a power factor of 0.8 back. Power transmission line lossless assumption. This according to the operating conditions, a.) The line's phase constant (61), characteristic impedance (ZC)...
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 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 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 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...
The per-phase impedance of a short transmission line is (0.3+j0.4) Ω. The sending end line-to-line voltage is 3300V, and the load at the receiving end is 300 kiloWatts per phase at 0.8 power factor la...
The per-phase impedance of a short transmission line is (0.3+j0.4) Ω. The sending end line-to-line voltage is 3300V, and the load at the receiving end is 300 kiloWatts per phase at 0.8 power factor lagging. Calculate: (a) The receiving end voltage (b) The line current (c) The sending end power factor (d) The power loss.
Problem 2: A 345 kV, 60 Hz, three-phase characteristic parameters of the transmission line are: transmission...
Problem 2: A 345 kV, 60 Hz, three-phase characteristic parameters of the transmission line are: transmission line is 130 km long. The r= 0.036 ?/km L = 0.8 x 10-3 H/km C = 0.0112 x 10-6 F/km The receiving end load is 270 MVA with 0.8 PF lagging at 325 kV. (k) What is the total series impedance of this transmission line? (5 points) () What is the total shunt admittance of this transmission line? (5 points) (m) Calculate the...
power system A single-circuit 60-Hz high voltage power transmission line is 370 km (230 mi) long....
power system
A single-circuit 60-Hz high voltage power transmission line is 370 km (230 mi) long. The conductors are Rook with flat horizontal configuration and 7.25 ms=(23.8 ft.) conductor spacing. The load on the line is 125 MW at 100% power factor. Use attached Tables A3 to A3to determine; The sending end voltage Vs The sending end current Is The sending end power Ps The percentage voltage regulation The transmission efficiency Given that Ds for the Rook conductor is 0.0327...
A single-circuit, 50-Hz, 3-phase transmission line is 150 km long. The line is connected to supply...
A single-circuit, 50-Hz, 3-phase transmission line is 150 km long. The line is connected to supply a load of 30 MVA at 0.85 pf lag and 138 kV. The line constants are : R = 0.186 ohm/km, L = 2.60 mH/km, and C = 0.012 μF/km. Using nominal π representation calculate : (a) the ABCD constants of the line. (b) the sending end voltage when supplying (i) no load, and (ii) the above load at the receiving end at the...
Phase of a three-phase, 60 Hz, 300 km long power transmission line with a nominal operating line voltage of 500 kV. its inductance per 291 mH/phase, and its capacitance is 3.45uF/phase. Voltage between 500 kV phases from the end of the energy transmission line Under it, a load of 1000 MVA is fed with a power factor of 0.8 back. Power transmission line lossless assumption. This according to the operating conditions, a.) The line's phase constant (61), characteristic impedance (ZC)...
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 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 2: A 345 kV, 60 Hz, three-phase characteristic parameters of the transmission line are: transmission line is 130 km long. The r= 0.036 ?/km L = 0.8 x 10-3 H/km C = 0.0112 x 10-6 F/km The receiving end load is 270 MVA with 0.8 PF lagging at 325 kV. (k) What is the total series impedance of this transmission line? (5 points) () What is the total shunt admittance of this transmission line? (5 points) (m) Calculate the...
power system
A single-circuit 60-Hz high voltage power transmission line is 370 km (230 mi) long. The conductors are Rook with flat horizontal configuration and 7.25 ms=(23.8 ft.) conductor spacing. The load on the line is 125 MW at 100% power factor. Use attached Tables A3 to A3to determine; The sending end voltage Vs The sending end current Is The sending end power Ps The percentage voltage regulation The transmission efficiency Given that Ds for the Rook conductor is 0.0327...
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