Q5: (A) A 100 KVsurge travels on an overhead line of surge impedance 400 Q.The line is connected to a cable of surge impedance 50 Q through a resistance R. Find (1) the value of R that it absorbs maximum energy, and (2) voltage and current transmitted into cable?

Q5: (A) A 100 KVsurge travels on an overhead line of surge impedance 400 Q.The line is connected to a cable of surge impedance 50 Q through a resistance R. Find (1) the value of R that it absorbs maximum energy, and (2) voltage and current transmitted into cable?

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

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.2MCQ: Even though the fault current is not symmetrical and not strictly periodic, the rms asymmetrical...

See similar textbooks

Related questions

Q: A Parallel wire line has its radius of the conductor is 0.2 mm and the distance between the…

Q: Briefly explain about a) Primary transmission b) Secondary transmission c) Primary distribution d)…

A: Transmission: a) Primary transmission: The primary transmission includes the generation of the…

Q: Q(1): For the figure shown below, use nodal analysis to find the value of Vo

Q: For an ac circuit consisting of a load connected to a Thévenin circuit, is it possible for the load…

A: Yes, it is possible for the load voltage to exceed the Thevenin voltage in magnitude for an AC…

Q: 1. Write down a formula for the three-phase power factor, assuming perfectly sinusoidal and…

A: 1. Write down a formula for the three-phase power factor, assuming perfectly sinusoidal and…

Q: Consider a transmission line of characteristic impedance 50 ohms. Let it be terminated at one end by…

A: Given: Characteristic impedance, Z0=50 Ω Load impedance, ZL=j50 Ω

Q: A transmission line has a characteristic impedance of 100 ohm and a resistance of 0.2 ohm/m. If the…

A: A transmission line can be characterized by 4 parameters:1. Resistance per unit length (R)2.…

Q: 3. If a transmission line with an impedance characteristic of 50 ohm is connected to a load with an…

Q: Discuss why a. Complex power in an AC circuit is more than the DC resistance. b. Receiving end…

A: Only first three subparts are only to be answered. Kindly repost the part d. a. Question is why…

Q: what is the mutual inductance in ohms (or the mutual inductive reactance ) between the two…

Q: Give example problems for impedances and admittance.

Q: Calculate the impedance ?? for the maximum average power transfer in the circuit shown in Figure 3.…

A: In this answer we will try to find out the answer by developing the thevenin's equivalent of the…

Q: Is it possible to measure the phase-shift angle in an AC single-phase circuit by an indirect method…

A: The electrical circuits have resistance, inductance and capacitance as their elements. In the…

Q: Derive an expression for V(rms)» fundamental and harmonic components of the load voltage as a…

Q: lectrical load that draws current whose impedance varies throughout the cycle of the put ac voltage…

A: Linear load is defined as whose impedance is constant throughout its applied voltage cycle.…

Q: For a single phase ac voltage controller/chopper, which is designed by using thyristors, with the…

A: In this question we need to find a average power absorbed by the load

Q: What about homes that are already built? If power companies put high voltage power lines in an…

Q: What are two ways of reducing Z0? (last part of the question)

A: In this question we have to provide 2 ways of reducing Z0. As we know that Z0 depends on inductance…

Q: In U.S. residences, electrical power is generally utilized at a nominal voltage of 120 V rms. What…

A: If the electrical grid is designed for voltage 12 V rms, the power supply would be made difficult.…

Q: Illustrate the differences between tan δ terminology and power factor terminology (with the help of…

A: tanδ: If the applied electric field direction is reversed, the dipole alignment direction will be…

Q: For the circuit shown, what is the complex power, S. consumed by the load impedance? (Assume the…

A: To solve above problem, one should have basic idea about working of AC circuits. Above given circuit…

Q: For a current of r.m.s. value 5 A, and frequency 2 kHz, write down the standard expression. Hence,…

A: The R.M.S value of the current is 5 A. The frequency of operation is 2 kHz. The expression of the…

Q: Q#5. Illustrate the variation of output power taken from the wind turbine? How the frequency in wind…

A: In the case of the Wind turbine generated power will vary with the wind flow. So the power will…

Q: transmission line with an impedance of 35 Ω is connected to a load of impedance of 300 Ω, then the…

Q: a short three phase transmission line connected to 33kv 50 hertz generating station at starting and…

A: Write the given information from the question.

Q: The circuit shown in Figure Q5.1 consists of a current source connected to a load via a cable. The…

A: Current is given , On comparing with standard equation. Taking cos as reference current will be,

Q: For the circuit shown, solve for IB, IC, VCE, IC(sat) and VCE(off). Also, construct a dc load line…

A: BJT is current controlled electronic device in which their mode of operation controlled by base…

Q: Q5/B: Explain delta-star connection of 3 ph transformers. What its advantages and disadvantages?

A: ∆-Y connection of 3-phase transformer: In a three-phase transformer with a delta-star connection,…

Q: If the values of real power and reactive power is specified for a bus, then it is called as PQ bus.

Q: Explain how power factor and system efficiency are related

A: As we know that the power factor and efficiency are related to each other.efficiency depends on…

Q: EXAMPLE : Estimate the distance over which a load of 15000 KW at p.f=0.8 lagging can be delivered by…

A: The solution can be achieved as follows.

Q: From the circuit given below, How can I find the value of load Z for the maximum power transfer and…

A: According to question: The value of 'Z' for maximum power transfer is calculated as…

Q: -Derive and analyse relation of capacitance for 3- core cables [CLO-2,

A: Capacitance of 3 core cables: Let Cc be the capacitance between 2 cores and Ce between core and…

Q: The power loss in an overhead transmission line would increases when the of the line is increases.…

A: The solution is given below

Q: For the maximum average power transfer in the circuit shown in Figure 2, use the impedance ZL and ZL…

Q: A cable has inductance of 0.22 mH per km and capacitance of 0.202 microF per km. The surge impedance…

A: Given, a cable has Inductance, L= 0.22 mH Capacitance, C= 0.202 μF

Q: Vhat is the value of "Let-go" current on human tissue at 50-60 Hz from the standard?

A: LET-GO CURRENT: The maximum value of current a person can tolerate and still be able to release…

Q: A surge of 100 kV travels along an overhead line towards its junction with a cable. The surge…

A: Given, A surge travels along an overhead line towards its junction with a cable is, V= 100 kV The…

Q: EXAMPLE : Estimate the distance over which a load of 15000 KW at p.f=0.8 lagging can be delivered by…

A: Given a three-phase transmission line having, Load power, P = 15000 kW Power factor, cosϕ=0.8…

Q: As an example of the use of such a wattmeter in measuring average power, let us consider the circuit…

Q: For a single phase ac voltage controller/chopper, which is designed by using thyristors, with the…

A: A rectifier circuit is used to rectify the AC power generated by this source to the DC power that…

Q: For the maximum average power transfer in the circuit shown in Figure 2, use the impedance ??. and…

Q: com ngle-phase system, state what are the bendfits of three phase systems? your own words, define…

A: We are authorized to answer only one question at a time since you have not mentioned which question…

Q: For the admittance locus shown below, if Vs=10Cos4t Volt. Find the maximum ?power delivered to the…

A: given Vs = 10cos4t Vmax =10 volt P= V2/R =V2*Gmax Pmax = (10)2 * 0.5 = 50 watt

Q: Using a test equipment, Vmax was found to be 5V while Vmin is 1V. The distance between voltage…

A: Given : Note : Please note that for the proper understanding here we have used two methods to…

Q: Q2// Explain the terms, connected load, load factor, plant use factor, diversity factor.

A: Explain Connected load Load factor Plant use factor Diversity factor

Q: 4. (a) A transmission line with a characteristic impedance of 100 has a load of 1 k2 resistance in…

Q: Find the instantaneous voltage at 200us of the 10Vpk 1kHz sinusoidal source. v(200us) = ? Volts

A: The solution is given below

Q: a) Write the Biot-Savart Law for a steady current I.

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

Question

Q5: (A) A 100 KVsurge travels on an overhead line of surge impedance 400 Q.The line is
connected to a cable of surge impedance 50 Q through a resistance R. Find (1) the value of R
that it absorbs maximum energy, and (2) voltage and current transmitted into cable?
(B) Explain in details the following phrase (The rate of rise of re-striking voltage will
become high if the fault ocurrs near the bus bar of the station?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1 Given;

VIEW

Step 2 solution;

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Sinusoids and Phasors of Alternating Circuit

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Q5/C: Compare between Auto transformers and 2 winding transformers.
Which of the following statements is/are true? A In purely resistive circuit, the current lags voltage. (B In purely capacitive circuit, the voltage lags current. In purely resistive circuit, the current is in phase with voltage. D In purely inductive circuit, the current leads voltage.
estion 9 The fault current level of a circuit breaker used in a transmission line with phase voltage 2.2 kV and breaking capacity 50 MVA is yet ......kA. vered -ked out of Flag question estion 10 The voltage between lines in a transmission line is the maximum value of the sine waveform. yet vered Select one: -ked out of O True Flag question O False
In a power system with negligible resistance, the fault current at a point is 800 p. u. The series reactance to be included at the fault point to limit the short circuit to 5.00 p. u. is (a) 3.00 p.u (b) 0.200 p.u () 0.125p.u8 (d)0.075 p.u
The sequence components of the fault current are as follows: Ipositive = j2 p.u., Inegative = - j0.5 p.u. and Izero = -j 1.5 p.u. The type of fault in the system is
A parallel connection of a RL branch with a C branch is connected across a 100V AC mains. At first R = 10 ohms, L = 20mH and frequency of 1000rad / s, the current measured is 2.2361A at 89.44 leading power factor. A) Determine the initial capacitance. B) However, a fault occurs on the capacitor branch making its capacitance 20% lower and a resistance of 5 ohms is detected. If this faulty circuit is rerun but at a frequency of 500 rad / s, determine the new current that will flow through the circuit
ISE 2. A bolted short circuit occurs in the series R-L circuit of Figure 1 with V=18kV, f=50Hz,X=1092, R=1.092, and with maximum dc offset. The circuit breaker opens 3 cycles after fault inception. Determine: (a) the rms ac fault current, (b) the rms "momentary" current at T=1.0 cycle, which passes through the breaker before it opens, (c) the rms asymmetrical fault current that the breaker interrupts. 1 R mm i(t) ~e(t)=√√2U sin(@t+a) t=0 X² Figure 1 series R-L circuit
In single phase power factor meter there is error due to frequency and waveforms but not in three phase power factor meter, I know the reason why?? Please elaborate properly
Which of the following statements is/are true? (A In purely inductive circuit, the current leads voltage. (B) In purely resistive circuit, the current lags voltage. C In purely resistive circuit, the current is in phase with voltage. D In purely capacitive circuit, the voltage lags current.
A generator operating at 50Hz delivers 1 pu power to an infinite bus through a transmission circuit inwhich resistance is ignored. A fault takes place reducing the maximum power transferable to 0.5 puwhereas before the fault, this power was 2.0pu and after the clearance of the fault, it is 1.5 pu. By theuse of equal area criterion, determine the critical clearing angle.
A 12 MVA, 132/6.6 kV, transformer having a reactance of 0.15 pu is fed from an infinite bus. The transformer feeds two motor each 6 MVA, 6.6 kV. Each motors has a transient reactance of 0.14 pu and a subtransient reactance of 0.30 pu based on its own rating. A three phase balanced fault occurs at the terminals of one motor as shown in the figure below. Find the subtransient fault current and subtransient current in breaker. M1) 132/6.6 KV СВ 38 CB Infinite Bus M2 Fault
Draw three transformers for each of the different three-phase connections. That is, draw three transformers and then make the connection, eg star-star, then redraw three transformers and make another three-phase connection, and so on until all four combinations of three-phase connections are made.