Question number 3 Q 3(a) 3-phase voltages are applied to thethree windings of a three phase machine. If anytwo supply terminals are interchanged, show thatthe direction of rotation of the MMF wave isreversed but its amplitude remains un altered.(b) Discuss with proper reasoning thesynchronization of an incoming alternator to thebus of a large synchronous generator.

Answered: Image /qna-images/answer/9c45a548-c650-42fd-bae9-754f2bba0682.jpg

Answered: IVI ude remains

Engineering

Electrical Engineering

IVI ude remains

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.41P

See similar textbooks

Related questions

Q: A 15 V source is connected across a 12-0 resistor. How much energy is used in three sec'

A: In this question we will find energy used by resistance in given time....

Q: Suppose a CT signal x(t) = 2[u(t-2) – u(t+1)] has a transform X(s). a) If Ya(s) = e^-5s *sX(s), dete...

Q: What will be the branch voltage when Rx is adjusted to 162? What is the magnitude and direction of t...

Q: An aluminium wire 7.5 m long is connected in a parallel with a copper wire 6 m long. When a current ...

Q: Briefly explain each of the following topics: a. GPS system b. Traditional TV and HDTV

A: Satellite Communication The communication links between various points on earth by the use of artif...

Q: A four pole 60 Hz wound rotor motor is to be used as a frequency converter. At what speed must the r...

Q: 3. Three particles of charge +70, +48, and -80 µC are placed in a line as shown below. Calculate the...

A: Electron-An electron is a fundamental particle, unlike protons and neutrons which are made up of par...

Q: 240 N 150 N RT 120 Q 360 N b. R7 4Ω 8 Ω 8Ω GT с. Brown Black Gray Red Red Gold Orange White RT Orang...

Q: Rx 10 Ohm 2 A 14 Ohm 4V 3A 12V 3 Ohm ЗА 4 Ohm Hitin

Q: Q2/ A 2- pole Dc shunt motor operating from a 200V supply takes a full load current of 35 A, the no ...

A: Given DC shunt motor Number of poles P=2Voltage V=200 vFull load current IL=35 ANo load...

Q: 5. Use the current divider rule to determine all unknown currents for the networks а. b. 60 mA 150 m...

A: This question belongs to circuit theory . It is based on the concept of current division in parallel...

Q: Find Ic and Vec for the pnp transistor circuit in Figure 5–15. 5-4 FIGURE 5-15 +10 V RE 10 kn 1.0 kn...

A: Voltage divider bias circuit- A Voltage divider is used to divide the input voltage. The simplest vo...

Q: 1. For the circuit shown below, a. determine the current I, by the nodal analysis. 12 0 ww 24 V 623 ...

A: Given circuit,

Q: Explanations of the mechanics and applications of motors and generators.

A: Mechanics is a branch of science that studies how objects move when they are subjected to force. It ...

Q: b) Obtain the transfer function of the system using Mason's rule where the signal flow graph is show...

Q: Decimal Ex Binary Addition Addition 3+5 0011 + 0101 4 + 1 8 + 3 2+4 0010 + 0100 0 +7 0000 + 0111 8 +...

A: The complete table for binary addition is

Q: "As shown is a positive parallel clipper circuit which has an input voltage of E=t5V. The negative o...

A: In this question, We need to determine the value of resistance R1 as shown in the circuit. Input a...

Q: The voltage and current at the terminals of an auto- mobile battery during a charge cycle are shown ...

Q: The circuit shown in Figure P has three inputs: v1, i2, and v3. The output of the circuit is the cur...

A: This question belongs to circuit theory . It is based on the concept of nodal analysis . This analys...

Q: EXAMPLE 3. A 25-kw three-phase oonverter has a d-o output voltage of 230 volta. Asuming negligible l...

A: Example 3) number of phases, m=3 power factor, pf =1 negligible loss hence efficiency, η =100 %=1 ...

Q: a.In summary, explain the following properties of a system and illustrate each type with an example....

A: Brief description : In the given question they want to know the definition of some of the propertie...

Q: 3. A factory's separately excited DC generator has an armature resistance of 0.250. The machine is d...

A: Separately excited DC generator- Machine whose field winding is energize by an external DC supply so...

Q: In the circuit shown in the given figure, the current through inductor is 10 2 10 V 5H 5 V

A: Given circuit,

Q: o18 V 4.7 k2 R1 Ic oVc = 12 VB o VE 5.6 k2 1.2 kM 1.60 V

Q: 10.Analyze the following sequential circuits (derive the state transition table and the state diagra...

A: The solution is given below

Q: A 20 Q resistor is connected in series with a 200 Q resistor and to a supply voltage of 20 V. What i...

A: In this question, choose the correct options. We need to determine the voltage across the 20ohm res...

Q: in a series circuit the voltage in every element is equal and follow the law of conservation of ener...

A: In series circuit the voltage in each element is not equal . In series circuit the current through e...

Q: The voltage and current at the terminals of the cir- cuit element in Fig. 1.5 are zero for t < 0. Fo...

A: We have given the following problem

Q: A 20 Q resistor is connected in series with a 200 Q resistor and to a supply voltage of 20 V. What i...

Q: Q5) Design 4-16 decoder using 2-4 decoders

A: Decoder : At receiver side, converted data will reach. So, the data needs to be converted again to i...

Q: The following information is given in connection with three loads connected to a 240-V source: load ...

Q: An electric lamp whose resistance, when in use, is 2 0 is connected to the terminals of a dry cell w...

A: In this question, Calculate the internal resistance r and voltage difference between terminal of th...

Q: 10.Analyze the following sequential circuits (derive the state transition table and the state diagra...

A: This is a problem of digital circuit. The solution is given below

Q: A voltmeter having an accuracy of ±3 percent of full-scale 250 V range is employed to read 150 V. Th...

A: Given, Voltmeter having an accuracy +- 3 percent of full-scale 250 v range is employed to read 150 ...

Q: A 100 V power supply has a series limiting resistor of 100 kN connected to its output. Draw the Nort...

A: Consider the circuit for the required specification.

Q: The maximum current that a 2W, 80 KOHM resistor can safely conduct is: uA

Q: Two straight parallel wires 5 m long and 2 mm apart carries currents of 8 A in opposite direction. F...

Q: series circuit containing a 20 uF capacitor in series with a 0.5 mega ohm resistor is connected to ...

Q: What is the dimensioning system shown in the figure below? 1.31- 67 - .31 51

A: Unidirectional dimensioning system The dimensioning system used in given figure is unidirectional d...

Q: A load of 1500 KW is connected at the receiving end of a 3 phase transmission line 80 km long. The p...

A: Given Transmission line Length L=80 kmLoad PL=1500 kwReceiving end voltage VL=21 kvPower factor PF...

Q: Two resistors, R1 = 100 Q and R2 = 200 N are connected in parallel. If the current through R1 is 1 A...

Q: Use the mesh-current method to find the total power developed in the circuit in 480. P4.48 10 4Ω 20 ...

Q: Explain and elaborate the Different Components used in Electronic Circuits and how does it work?

A: Different Components used in Electronic Circuits component. Capacitor Resistor Diode Transist...

Q: Determine the base voltage VB in the circuit. * F15 Vcc R 22 k2 RC 1.5 k2 B = 150, R2 4.7 k2 SRE 680...

A: Base Voltage: It is the value of voltage that is connected to the base terminal of the BJT. It is de...

Q: A lead wire and an iron wire are connected in parallel. Their respective specific resistances are in...

A: In this question we will find wire ratio of area with given length , current and specific resistance...

Q: Determine the total charge transferred over the time interval of 0 < t< 9 seconds whet i(t) = (1/2) ...

A: The solution is given below

Q: Find the transfer function, G(s) = V(s)/V(s), for the network shown in the figure below. 1 H vị(t) Ι...

Q: conservation of charges

A: Yes it is true.. parallel elements with their currents summation will give total current in the cir...

Q: L C= 7 Pf. of at is 0,s4305 and the 'capacifive. þeob: value of the capacim C. boe: Draw the veto ti...

Q: shift bits

A: Sequential circuit - Sequential circuit is a kind of combinational logic circuit which have variable...

Concept explainers

Z parameter

The Z-parameters that are the impedance parameters of a two-port network are defined by expressing the two-port voltages V1 and V2 in terms of two-port currents I1 and I2. The Z-parameters are calculated by open circuiting one of the two ports at a time henceforth they are called open-circuit impedance parameters.

Question

Question number 3

Q 3
(a) 3-phase voltages are applied to the
three windings of a three phase machine. If any
two supply terminals are interchanged, show that
the direction of rotation of the MMF wave is
reversed but its amplitude remains un altered.
(b) Discuss with proper reasoning the
synchronization of an incoming alternator to the
bus of a large synchronous generator.

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

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

The amplitude of the sinusoidal symmetrical ac component of the three-phase short-circuit current of an unloaded synchronous machine decreases from a high initial value to a lower steady-state value, going periods through the stages of __________ and ________ periods.
Derive current, active and reactive power equations of a three-phase synchronous generator along with phasor diagram.
Plot the short circuit characteristic of the three-phase synchronous alternator.
A 30 MVA, three-phase, wye-connected, 60 Hz, 13.8 kV synchronous alternator has negligible stator resistance and synchronous reactance of 10 W/phase. Calculate the % voltage regulation of the alternator when it is operation in isolation (stand-alone) and delivering rated MVA to a 0.866 pf leading load at 13.8 kV. Calculate the % voltage regulation of the alternator when it is operation in isolation (stand-alone) and delivering rated MVA to a 0.707 pf lagging load at 13.8 kV.
If a 3-phase short circuit occurs at the terminals of an alternator, the current in the armature circuit increases suddenly to a large value. Select one: True False
A generator rated 1MVA, 13.8 kV 60 hz 3-phase wye connected, 6-poles has 19Ω synchronous reactance per phase and negligible resistance. The field copper loss and SPL are 15 kW and 30 kW respectively. Determine the % VR and efficiency of the generator at rated load and unity power factor
A 3-Phase 10Kva, 400 V, 50Hz star connected alternator supplies a rated load at 0.8 power factor lagging. If the armature resistance per phase is 0.5Ჲ and the synchronous reactance is 10Ჲ, using the e.m.f method, estimate the alternator’s voltage regulation
where a dashpot mechanism is employed in a constatant-current transformer, it is used as a counterweight to help balance the weight of the movable coil. a) true, b) false One can determine if there are harmonics in a circuit by calculating the ratio of trui RMS current to that of the circuit's averge current. a) true, b) false The neutral conductor of a 3-phase, 4-wire Wye connected transformer may have to be oversized in order to compensate for harmonics. a) true, b) false
The effective resistance of a 2200 V, 50 Hz, 440 KVA, 1 -phase alternator is 0.5 ohm. On short-circuit, a field current of 40 A gives the full load current of 200 AS. The electromotive force on open-circuits with same field excitation is 1160 V. Then the synchronous impedance and reactance is _______ ohm and _______ ohm respectively.
Derive emf equation of the synchronous generator.
Describe the components and functions of a typical power system, including generators, transformers, and transmission lines.
A three phase synchronous generator with negligible resistance and Xs=20 ohm has induced voltage as well as terminal voltage per phase equal to 230 V. for the load angle of 30o, power received by the bus is .........W.