The per-unit impedance of a short-transmission line is ?0.06. The per-unit load on the line is (1 + ?0.6) ?? at a receiving end voltage of 1∠0° ??. Calculate the average power flow over the line.
The per-unit impedance of a short-transmission line is ?0.06. The per-unit load on the line is...
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.
The impedance of a three-phase, 50 km long power transmission line per unit length is 0.05 + j0.1 / km. A load with a power coefficient of 0.8 forward is fed from the end of the line. Line and end of line of energy transmission line According to the intention to keep the voltage between phases constant at 154 kV; a) Active and reactive power values drawn from the beginning and end of the line, b) Calculate the lost...
A generator bus(with 1.0 per unit voltage)supplies a 180MW, 60Mvar load through a lossless transmission line with per unit (100 MVA base) impedance of j0.1 and no line charging. Starting with an initial voltage guess of 0.8<0◦,iterate until converged using the Newton-Raphson power flow method. For a convergence criteria, use a maximum power flow mismatch of 0.1 MVA.
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
1) A lossless transmission line that is 3N2 long with an impedance of 75Ω terminated by a load of 25 Ω The generator has a voltage of V,r-2sin(et) V and an internal impedance Ζ'50Ω (a) For this circuit give Vg, T, and the voltage standing wave ratio. (b) Give Vin. Inand Vo (c) Give and I (d) Give the voltage and current at the midpoint of the line (ie. P(z) and I(2) at z-3/4). (e) From the answer of (d)...
Given a 3-transmission line with a series impedance z 0.17+ jo.79 2/mile, and a shunt admittance y j2.10*mile The line is 150 mile long, and delivers to the load (receiving-end) 15 MW at 132 kV, at a power factor PF1. Assume medium length line, and calculate the power angle 012 between the sending-end voltage and the receiving-end voltage.
32 1. There are three transmission line and one 4 transmission line (all characteristic impedance of transmission line is v2zo and assume lossless line) and there are two loads of load impedance Zo 214 iz Zi=?> 2/4 A/4 short 32/4 (a) Find the input impedance (Zn) (b) If the input power is 1 watt, find the transmitted power to each load Zo 32 1. There are three transmission line and one 4 transmission line (all characteristic impedance of transmission line...
A lossless transmission line with characteristic impedance of 75Ω measures 1.4λ at a certain working frequency. The line is powered by a generator with negligible impedance and an open circuit voltage of Vg=10∠0° [V]. A load of 50-i50Ω is connected at the end of the line. Find a) The reflection coefficient. b)The stationary wave ratio. c)The input impedance of the line. d)The voltage at the entrance of the line. e)The voltage at the load. f)The average power delivered to the...
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...
Please show me step by step how to get load impedance in per-unit. New load is 1.05+1.4j per unit and new z load is 0.447 per unit Consider the three-phase power system in the figure below. By selecting a common base of 100 MVA and 22 kV on the generator side, draw an impedance diagram showing all impedances, including the load impedance in per-unit. Lines 1 and 2 have series reactances of 48.4 and 65.43 2, respectively. At bus 4,...