Questions: Separately excited generator 1. Discuss the excitation of a generator. (5)
Q: Explain the effect of the capacitor on the operation of the asynchronous machine as a generator.
A: An induction generator or asynchronous generator is a type of alternating current (AC) electrical…
Q: A) What is the basic nature of nature of the induced EMF in a d.c generator ? b) What is the…
A: a) In the DC generator alternating between getting unidirectional DC output, the fundamental nature…
Q: types of power losses of DC motor
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Q: DIFFERENTIATE DC GENERATOR OVER AC GENERATOR ACCORDING TO ITS CONSTRUCTION.
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Q: 3-2. Develop a table showing the speed of magnetic field rotation in ac machines of 2, 4, 6, 8, 10,…
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Q: Qn 1. Explain the working of the Induction Generator with a diagram with the reference
A: The induction generator is an induction motor that is made to work as an induction generator. The…
Q: Neatly please 4. Draw and label with acronym of the schematic diagram of the different types of…
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Q: The process of voltage buildup applies to separately-excited dc generator. True or False?
A: The answer is false.
Q: What is the basic different between the internal characteristics and the external characteristics of…
A: DC shunt generator: It is a direct current generator in which the field winding is connected in…
Q: Draw the circuit diagram of self excited DC compound long shunt generator, mark all current and…
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Q: how is a generator cooled?
A: The generator is a device that converts mechanical energy into electrical energy. While conversion…
Q: How is a rotating magnetic field produced in a three-phase induction motor? Explain it with the help…
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Q: Develop a table showing the speed of magnetic field rotation in ac machine of 2, 4, 6, 8, 10, 12,…
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Q: electromagnetism, motors and back emf.
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Q: Explain any one method of speed control of Induction motor with respect to rotor side with diagram
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Q: For self-excited generator, why isn't max. generation voltage generated as soon as the Armature…
A: Self-excited generators are modern DC generators with field coils area unit that start with the…
Q: 2. What is the relationship between the generator's excitation Current (4) and generator's field…
A: Need to find relationship between generator excitation current and generator field flux
Q: Discuss the saturation of a permanent magnet generator
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Q: what is the conclusion for the concepts of rotating amature and rotating field in an alternator?
A: There are two types of alternators are used one is rotating armature type and the other one is…
Q: (c) The magnetization curve for a separately excited DC generator is shown in Figure Q4 (c). The…
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Q: (b) Discuss why the slip should be as small as possible for induction generator operation and…
A: It is asked to discuss why the slip should be as small as possible for induction generator…
Q: . Explain the self excited DC Shunt generator with its voltage equation
A: The shunt generator divided in two parts, self-excited dc shunt generator separately excited dc…
Q: What is the excitation current required to obtain the rated voltage at the outp of the generator?…
A: a generator produces output voltage which is proportional to the magnetic field, which is also…
Q: Explain in details how the separately-excited de generator works?
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Q: engineering explained turbo
A: The term turbo is used for turbocharger or turbo engines in engineering. In a turbocharged engine,…
Q: a) Explain the internal structure of an threephase induction motor. b) Explain the reason that…
A: Electrical machines can be either generators or motors. They can be either AC machines or DC…
Q: Qi (a) With aid of suitable diagram, explain the losses and power-flow of an induction motor.
A: To know how the power flow in the case of an induction machine we need to draw power flow diagram.…
Q: Outline with the aid of a suitable diagram the necessary power conversion stages required to…
A: Question in part b is independent to that of part c and d. We are authorized to answer one question…
Q: With the aid of diagrams explain the three generator characteristic curves
A: A d.c. generator is an electrical machine where conversion of mechanical energy to electrical energy…
Q: 1. Explain the working of Induction Generator with diagram
A: As we know that in an induction motor works on the principle of magnetic induction. The 3 phase…
Q: 4) What are the conditions for voltage building up of a separately excited DC generator?
A: Conditions for voltage building up :- i)There should be sufficient residual flux at the field…
Q: How can a synchronous motor be made to have a leading power factor? Select one: A. BY…
A: When we operate the synchronous motor at overexcited mode it's power factor is leading.
Q: ) Of all the factors which influence the amount of voltage generated by a generator, fi-om a field…
A: Ans. rate of incidence
Q: (1) An 16-pole generator has 1000 armature conductors and has a useful flux per pole of 130mWb. What…
A: As per the guidelines of Bartleby we supposed to answer first question only for remaining questions…
Q: d) Sketch the corresponding phasor diagram and calculate for the armature current (assume the field…
A: An alternator/Synchronous generator is a type of electrical machine that converts mechanical energy…
Q: Explain the types of dc generator and motors on the basis of excitation.
A: Types of DC Machine Shunt DC Machine Series DC machine Long Shunt compound DC machine Short shunt…
Q: Explain the methods for creating residual magnetism in generator whose field poles were…
A: Residual Magnetism- A small amount of magnetism is retained by the soft iron of electromagnet known…
Q: What is the operation of a dc generator? Create a bulleted set of information
A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…
Q: Q2 : What the important characteristics of a d.c. generator explain briefly.
A: The important characteristics of DC generator are as follows: 1) Open circuit characteristics : This…
Q: (a) With the aid of diagrams describe the basic topology of a wound field 3 phase synchronous…
A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…
Q: What determines the voltage frequency of an ac generator? What are the two types of ac generators?
A: Frequency of an AC generator: The frequency of the generated voltage depends on the number of field…
Q: State two reasons why a self-excited shunt dc generator may fail to build up a voltages In each…
A: A self excited shunt dc generator may fail to build up voltage due to following reasons: 1) Due to…
Q: The armature reaction occurs when a separately excited generator supplies rated load: Is always…
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Q: Mention factors causing a permanent magnet generator not to generate emf
A: The reasons causing a permanent magnet generator not to generate emf are as follows:
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- 1- The compole is used to 2- A 4-pole wave winding machine has ------ magnetic circuit. 3- A commutator pitch for the duplex wave winding is equal to - 4- A 2-pole triplex lap winding will have parallel paths. 5- A 6-pole lap wound generator has 900 conductors. The e.mf induced per one turn being 3V. the generated voltage of the grnerator is ( 6-A 10kW, 250 V shunt generator has armature and field resistance of 0.2 and 502 respectively. Then the generated voltage is andQuestion: A 4 Pole DC Generator Is Wounded Lap. It Rotates At 500rpm To Be Able... A 4 pole DC generator is wounded lap. it rotates at 500rpm to be able to generate 150 V of open circuit voltage. What is the percentage decrease in the exixting flux per pole if a frequency of 10 rps can produce 120 V? %.A 6 pole wave wound d.c. shunt generator has 500 conductors. A generator delivers 50 kW of power at 250 voltage at full load. The resistance of the field circuit is 125 2. Actual brush shift is 10°. Then find the demagnetizing and cross magnetizing ampere turns per pole and how many additional turns must be wound on each pole to eliminate the demagnetizing effect.
- 2- A 4-pole, wave-wound d.c. shunt generator has an armature winding consisting of 300 turns each of 0.0020. The armature resistance is a) 0.152 b)0.62 c) 0.30 d) none of aboveA 2 pole wave wound dc generator has 44 slots, each slot having 20 conductors. The flux/pole is 0.018 weber. At what speed the armature be rotated to get an induced emf of 220 V. What will be the induced emf developed if the armature winding is lap connected and runs at the same speed. Speed Generated Emf when lap connectedWhy is it necessary to conduct polarity tests on transformers?
- A four-pole Shunt connected generator has a lap connected armature with 728 conductors. The flux per pole is 25mWb. If the generator supplies one hundred incandescence lamp (100V, 60 W). The shunt field and armature resistance are 100 ohms and 0.015 ohms respectively. WHAT IS THE GENERATED VOLTAGE ?The frequency of voltage generated in SG depends on: Select one:a. Number of polesb. number of poles and speed rotationc. Field currentd. Rotor speede.Number of poles, speed rotation and type of winding. A 20 kW compound generator works on full load with terminal voltage of 250 V. The armature, series, and shunt windings have resistances of 0.05-ohm, 0.025 ohm, and 100 ohms, respectively. If the machine is connected short shunt, the emf generated is nearest to. (Our subject is Electrical Machines 1 ) (I need a clear answer and solution. Thank you so much)
- The internal characteristics of DC shunt generator can be obtained from *DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC MACHINES Answer the following questions (A, B and C) depending on the topic. 1. ALTERNATORS A. Why is it necessary to maintain the speed of an alternator at all times and how do they control the speed of an alternator when in operation? B. Distinguish between half-coiled and full-coiled armature windings in alternators. C. Why are fractional pitch windings generally used in alternators?A 8 pole wave wound dc shunt generator runs at a speed of 900 rpm, has an armature and shunt field resistance of 0.7 N and 300 N respectively. The armature has 960 conductors and flux per pole is 0.057 Weber. If the lamp load connected has a resistance of 60 2, determine (i) Generated EMF, (ii) Total Resistance, (iii) Armature Current, (iv) Terminal Voltage. Generated EME (Eg) Total Resistance (Rt) Armature Current (la) Terminal Voltage (V)