11- To increase the transfer power in a 230 kV transmission line, we plan to use a series capacitor or an SSSC compensator. If the length of the line is 100 km and the line X is 0.0911 pu, assuming &= 30 degree: A) What is the value of the series capacitor so that the transferable power is increase to 2P.U.? B) What is the injection voltage by SSSC?

11- To increase the transfer power in a 230 kV transmission line, we plan to use a series capacitor or an SSSC compensator. If the length of the line is 100 km and the line X is 0.0911 pu, assuming &= 30 degree: A) What is the value of the series capacitor so that the transferable power is increase to 2P.U.? B) What is the injection voltage by SSSC?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.52P

See similar textbooks

Similar questions

Consider a long radial line terminated in its characteristic impedance Zc. Determine the following: (a) V1/I1, known as the driving point impedance. (b) | V2 |/V1|, known as the voltage gain, in terms of al. (c) | I2 |/| I1 |, known as the current gain, in terms of al. (d) The complex power gain, S21/S12, in terms of al. (e) The real power efficiency, (P21/P12)=, terms of al. Note: 1 refers to sending end and 2 refers to receiving end. (S21) is the complex power received at 2; S12 is sent from 1.
The length of a transmission line is (1000/3) kilometers. For this transmission line r=0.15 ohm/km x=0.8 Ohm/km y=5 * 10^-6 S/km given in the form. At the end of the line (36) MW is drawn and the end-of-line voltage is (220) kV. power factor: 0.95 (back) a. Assuming the line as a short line, calculate the VS and IS values with their angles. b. A, B, C, D by accepting the line as a mid-length line and using the "T" model approach. Calculate the parameters (Vs Is calculation is not needed) C. Calculate only parameter A, assuming the line as a long line.
With the system shown in the figure, use 100MVA as system base, and 230 kV as base voltage along the transmission line. For the same system in the figure, build the Y-bus matrix without the Load. 1. What is the element Y11? Provide the susceptance value 2. What is the element Y22? Provide the susceptance value
If transmission line parameters A and B are 0.9∠0° and 200∠90° respectively. Find the shunt reactor required to compensate the ferranti effect? 1500 Ω 3000 Ω 750 Ω 2000 Ω
Viva Questions:1. What is the difference between Primary and Secondary constants? 2.Define Transmission line Input Impedance?
A 300 km long 3-phase transmission line of 154 kV is operated at 60 Hz. The line is on average 1200 m above sea level and instead At 120m, an air outlet decreases by 10 mmHg. Sea free air the dose is 760 mmHg and the puncture strength of the air is 30 kV / cm As it is known, the roughness of the line is 0.89 for the average outdoor temperature of 34 oC, The distance between the conductors is 550 cm and the conductor cross section is 40mm. along the line by calculating the corona voltage and corona discharge voltage calculate the total corona loss that occurred.
A single circuit 60 Hz transmission line. the conductors are Linnet type with flat horizontal spacing of 17.46 feet between conductors. Determine: (a) Assume that the line is short with a length of 50 miles, calculate the parameters of the line and draw the equivalent circuit. (b) Assume that the line is average with length of 150 miles (Pi-nominal model). draw the pi-nominal circuit for the transmission line and calculate its parameters (Z and Y/2 values, where Z is the series impedance of the transmission line and Y is the shunt admittance).
With the system shown in figures, use 100MVA as system base, and 230 kV as base voltage along the transmission line. 1. Based on the system diagram with buses labelled accordingly what should be the rank of the square Y-bus matrix? 2. Build the Y-bus matrix without the Load. What is the element Y11 in susceptance value? 3. Build the Y-bus matrix without the Load. What is the element Y22 in susceptance value? 4. Build the Y-bus matrix without the Load. What is the element Y12 in susceptance value? 5. If you are to convert the real power load to a shunt conductance, what is the value of the conductance in per unit?
a) Explain why electricity prices may vary with location. What is the difference between constraint costs and congestion costs (surplus)? Discuss and Contrast shortly the approach taken by:b) Merchant Transmission.
A 500 kV, 60 Hz uncompensated three-phase transmission line is 500 km long. The line has three ACSR 1113-kcmil (Finch) conductors per phase with parameters Current carrying capability of single ACSR 1113-kcmil (Finch) conductor is 1,110 A. Calculate the theoretical maximum (steady state stability limit) real power that this line can deliver and compare with the thermal limit of the line. Assume VS = VR = 1.0 per unit and unity power factor at the receiving end.
Ideally, a dc load line is a straight line drawn on collector characteristic curves between which of the following? Please select one: a. Q Point and shear b. Q Point and saturation c. V_CE (interrupt) and I_C (sat) d. I_b = 0 and I_B = I_C/ß_DC
The length of a power transmission line is ℓ = 150 km, the unit effective resistance of the line is r = 0.06 Ω/km, x = 0.4 Ω/km and the admittance value of the line is y = j4.10-6 Siemens/km. The end-of-line voltage is 154 kV, the line-head voltage is 170∠10o kV. a) The characteristic impedance of the line b) The power drawn by the load according to the given values c) Calculate the maximum power that the line can transmit?