1)The sending-end current and receiving-end current in a given transmission line are not equal due to:a. Transmission line resistanceb. Transmission line inductanceb. Transmission line inductanced. Transmission line voltage2The phase voltage is equal to the line-to-line voltage in a delta connected 3-Fphase generator.3The DC method is suitable for heavily loaded power system.F4The current leads the voltage in Inductive loads.TF5Power flow studies are useful in planning future expansion of power system.F6Capacitors are used to adjust power factor in power systems.TF7Newton's method is not sensitive to initial solution choice.TF8Steel is used transmission lines because of its high electrical conductivity.TF9Step up transformers are used to reduce power loss in transmission lines.FThe Jacobian matrix elements are computed at every iteration of the fastdecoupled method.Power utility companies make more money selling active power.10F11F12Transformers are used in DC power systems.TF

“Since you have asked multiple questions, we will solve the first question for you. If you want any…

1)The sending-end current and receiving-end current in a given transmission line are not equal b. Transmission line inductance a. Transmission line resistance b. Transmission line inductance d. Transmission line voltage 2. The phase voltage is equal to the line-to-line voltage in a delta connected 3- T

1)The sending-end current and receiving-end current in a given transmission line are not equal b. Transmission line inductance a. Transmission line resistance b. Transmission line inductance d. Transmission line voltage 2. The phase voltage is equal to the line-to-line voltage in a delta connected 3- T

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.25P: Consider a single-phase electric system shown in Figure 3.33. Transformers are rated as follows:...

See similar textbooks

Similar questions

1. A single-phase power system as shown in Figure 1 consists of a 240 V, 60 Hz generator supplying a load, Zod = 8 + j6 Q through a transmission line of impedance, Zne = 0.08 + j0.14 Q. Answer the following questions: (1) transformer, T; and T2. Determine the voltage at the load and transmission line losses without the (ii) Determine the voltage at the load and transmission line losses with the transformer, T, and T2. T1 T2 1:10 10:1 IG Zaine Zioad source Figure 1
3.18 A three-phase, 50-kVA, 600-V, 60-Hz generator operates at rated terminal volt- age and supplies a line current of 48 A per phase at a 0.8 lagging power factor to a balanced three-phase load. Determine the real, reactive, and apparent power.
Q2) A 13.2-kV single-phase generator supplies power to a load through a transmission line. The load's impedance is Zload = 500 236.87° ohm, and the transmission line's impedance is Zline = 60 253.1° ohm. To reduce transmission line losses to 0.0103 of its losses without using the transformers design and use two transformers T1 between the generator and the transmission line and T2 between the transmission line and the load.
Please provide Handwritten answer
Number 17
The one-line diagram of a power system is shown in the figure below. The 3-ph load is composed of three 4.8-0 capacitors in delta connection. The motor draws 50 MW, 0.6 power factor lagging at 20 kV. Use a base of 100 MVA, 20 kV in the generator circuit. Determine the generator and motor internal emfs and the transmission line current. Line M 3-ph Load The three-phase power and line-line ratings are given below: X = 24% 22 kV 22/110 kV G: 80 MVA T1:40 MVA X= 6.4% X= 42.35 Q X = 22.5% Line: 110 kV M: 68.85 MVA 20kV The three-phase ratings of the three-winding transformer T2 are: Y-connected 110 kV Primary: Secondary: 40 MVA, Y-connected 25 MVA, 22 kV Tertiary: A-connected 15 MVA, 4.4 kV Neglecting resistance, the leakage impedances are: 110 kV Zps = 9.6% Zpt = 7.2% Zst = 10% 40 MVA, 40 MVA, 25 MVA, 110 kV 22 kV %3D
Consider three ideal single-phase transformers (with a voltage gain of ) put together as three-phase bank as shown in Figure 3.35. Assuming positive-sequence voltages for Va,Vb, and Vc find Va,Vb, and VC. in terms of Va,Vb, and Vc, respectively. (a) Would such relationships hold for the line voltages as well? (b) Looking into the current relationships, express IaIb and Ic in terms of IaIb and Ic respectively. (C) Let S and S be the per-phase complex power output and input. respectively. Find S in terms of S.
Consider a three-phase generator rated 300MVA,23kV, supplying a system load of 240 MA and 0.9 power factor lagging at 230 kV through a 330MVA,23/230Y-kV step-up transformer with a leakage reactance of 0.11 per unit. (a) Neglecting the exciting current and choosing base values at the load of 100 MVL and 230 kV. Find the phasor currents IA,IB, and IC supplied to the load in per unit. (b) By choosing the load terminal voltage IA as reference, specify the proper base for the generator circuit and determine the generator voltage V as well as the phasor currents IA,IB, and IC, from the generator. (Note: Take into account the phase shift of the transformer.) (C) Find the generator terminal voltage in kV and the real power supplied by the generator in MW. (d) By omitting the transformer phase shift altogether, check to see whether you get the same magnitude of generator terminal voltage and real power delivered by the generator.
Explain the concept of FACTS (Flexible Alternating Current Transmission Systems) devices. How do they enhance the control and stability of power systems? Provide examples of FACTS devices and their applications.
What are FACTS (Flexible Alternating Current Transmission Systems), and how do they improve the control and efficiency of power transmission?
A generator of 50 MVA, 4kV, Xd" = 25% and transformer of 50 MVA, 4 2 kV, delta/115 kV wye grounded, operating on 3.8 kV tap where XT" = 10% are to be connected into single equivalent reactance. What is the single equivalent reactance on a 100 MVA, 110 kV base? A. j0.6039 pu B. j0.6667 pu C. j0.8241 pu D. j0.8663 pu The answer for this is letter C based in my reviewer but I dont know the solution. Please send me solution for this
If the load draws a current of 2727 A, in phase, from a generator, which of the following statement is true? O A. The reactive power is flowing from generator to the load and the real power is flowing from the load to the generator. O B. Since the current is in phase with the generator voltage, both the real and reactive power is flowing from the generator to the load. O .Since the current is leading the generator, both the real and reactive power is flowing from the load to the generator. O D. The real power is flowing from generator to the load and the reactive power is flowing from the load to the generator. O E. None of the other choices are correct