In alternator armature winding why we prefer : a- short pitch winding w.r.t. full pitch winding? b- distributed winding w.r.t. concentrated winding? c- double layer winding w.r.t. single layer winding?

In alternator armature winding why we prefer : a- short pitch winding w.r.t. full pitch winding? b- distributed winding w.r.t. concentrated winding? c- double layer winding w.r.t. single layer winding?

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 3.28MCQ

See similar textbooks

Related questions

Q: )A 4-POle dc. shunt generator with a wave-Wound armature has to supply a Lamps each Load of 500 Iレ…

A: First we will find find armature current than we will find generated emf. Generated emf=∅×N×Z60×PA.…

Q: the electrical equivalent circuits for long shunt compounded DC motor and short shunt compounded DC…

Q: (a) A short shunt cumulative compound dc generator supplies 4kW at 220V. The Shunt field resistance,…

A: Find the induced emf of the DC short shunt commulative type generator.

Q: Draw voltage phasor diagrams for different load cases of salient pole synchronous generators and…

A: Here it is asking to draw the voltage phasor diagrams for different load cases of salient pole…

Q: 9- If the field current circuit of DC shunt generator is opened, there will no induced voltage in…

A: In this two statements are given .We have to write about them..

Q: 1. Design and draw a developed diagram/layout of a simple 2-layer Lap-winding for a 4- pole dc…

A: Progressive Winding :It is a process of winding In which winding is done in one direction and the…

Q: In DC shunt generator the type of current flows in field winding is AC whereas in armature winding…

Q: 1- In alternator armature winding why we prefer : a- short pitch winding w.r.t. full pitch winding?…

A: a) Short pitch prefer because in order to eliminate higher frequency harmonics in generated…

Q: Explain the applications of three phase wound rotor I.M?

A: Wound rotor induction motor has advantage that external resistance can be added to control the speed…

Q: Discuss the double field revolving theory and discuss the equivalent circuit diagram of single phase…

A: Single phase Induction Motor are also known as Fractional kW motors. It is commonly used in…

Q: Answer by true or false True False In DC compound generator, the resistance of series field winding…

A: DC compound generator have two type winding 1. Armature winding and 2. Two type field winding.…

Q: • A progressive simplex lap winding is to be design for a 4-pole, 14-slot, 2 coil-sides per slot…

A: For the design parameters are 1) winding : Progressive Lap 2) simplex 3) Number of slots : 14 ,…

Q: In a long shunt DC generator, Shunt winding is parallel with the Armature winding of the DC…

A: Given statement In a long shunt DC generator, Shunt winding is parallel with the Armature winding of…

Q: Discuss about Generator modeling in transient stability and derive the formula for the real and…

A: In transient stability analysis of the generator, because of large disturbance linearisation of…

Q: 2. Describe the Torque-Slip characteristics of a three phase induction motor.

A: As per bartleby guideline for more than one question asked only first is to be answered please…

Q: Q 1 (a) Define voltage regulation of a generator. How its voltage regulation may be found by MME…

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

Q: (a) Draw and explain slip-torque characteristics of 3-phase induction motor.

A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: A d.c. shunt generator has a full load output of 10 kW at a terminal voltage of 240 V. The armature…

A: We have an shunt generator which has, Full load output = 10 KW Voltage (V) = 240 V Armature…

Q: Q11: Draw the circuit, equivalent circuit and the torque speed characteristics of a single phase…

A: Answer -

Q: Draw the Terminal Characteristics of the following Generators. (i)Shunt DC Generator (ii)Series DC…

Q: The amount of torque developed by a 3-phase squirrel-cage induction motor from no-load to rated-load…

A: A simple question on electrical machines shbject . I provided the detailed solution for the same.…

Q: Design a suitable double-layer lap winding for a 6-pole armature with 18 slots and two coil-sides…

A: Front pitch- The distance between two coil sides connected to the same commutator segment is called…

Q: 3.A single phase AC generator has an armature winding resistance and reactance of 0.25 ohm and 2.5…

Q: 1-transfer function of DC Series motors (step by step) 2-block diagram of DC Series motors.

A: 63

Q: . Type of compound DC Generator wherein the shunt field winding is connected across the armature and…

Q: Explain compound DC generator, also describe its types and terminal characteristics of compound DC…

Q: A short shunt compound DC generator supplies a load current of 10A at a voltage of 10 volts. If the…

A: Given: A short shunt compound DC generator in which IL=10AV=10VRa=0.001ΩRsh=1ΩRse=0.00Ω According to…

Q: a. Explain the terms, coil span, coil pitch, short pitching and chording of coils. b. Equalizer…

A: a) Coil span: A coil is made of a single turn or multi turns of a conductor. Each side of a…

Q: In DC shunt generator the type of current flows in field winding is AC whereas in armature winding…

A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: - In alternator armature winding why we prefer : a- short pitch winding w.r.t. full pitch winding?…

A: a) Short pitch prefer because in order to eliminate higher frequency harmonics in generated…

Q: Explain torque speed/torque slip characteristics of 3 phase induction motor

A: Gives details about difference of torque and slip The ratio of difference of synchronous speed Ns…

Q: True False D.C shunt generators are most suitable for arc winding Answer by true or false * True…

A: Application of DC machine and operation of DC machine. Each DC machine have two type winding…

Q: In alternator armature winding why we prefer: a- short pitch winding w.r.t. full pitch winding? b-…

A: 1. Short pitch winding is used w.r.t full pitch winding in the alternator. Short pitch winding is…

Q: Q2) discuss (4) of the following: 1- What do you mean by speed of a 3-phase motor? 2- Why cannot…

A: 2) why cannot three phase motor run at synchronous speed ? Ans. In three phase motor there is some…

Q: ii. Differentiate the two types of armature windings in DC machines: lap winding and wave winding.

Q: a) Which components determine the excitation current of a transformer? How are they in transformer…

A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…

Q: Which of the following factor is responsible for negative voltage regulation of a DC generator? O…

A: Over compound dc generator has negative voltage regulation.

Q: An AC alternator is used to convert mechanical power to electrical power. Energy in mechanical form…

A: Please mention the voltage in part C as that data is missing. Part(a):- An AC alternator is a device…

Q: In induction motors What is the difference between nominal, rated , nominal conditions,free shaft…

A: Here it is asked to mention the difference between nominal conditions, free shaft conditions and…

Q: Pls Explain the following Contrast DC motor types with DC generator

A: Types of DC motors: separately excited motor: The field winding of this motos is excited from an…

Q: The 20 KW, Shunt DC Generator ha a four-pole lap winding and generates 216-volts when running at…

Q: An engineer is designing 4-pole DC generator with 30 conductors by using simplex two-layer wave-…

Q: Q) in a (120 V) compound gnerator, the 1esistance of the armature, shunt and series windings we…

A: Armature current =load current +shunt field current. Depending upon the connection we will draw the…

Q: A shunt generator supplies a 31kW load at 230V through cables of resistance, R = 122mΩ. If the…

A: In this question we need to find a terminal Voltage and internal emf genrated by Shunt Genrator.

Q: The rotor winding current for a four-pole synchronous ac generator with a distributed rotor winding…

Q: 6. The relation between the field current and the armature current in an alternator with the…

A: Field current - The field current is the current that is provided to a generator's or motor's field…

Q: Describe the basic circuit of DC Generators including its yoke, fid windings, interpoles, field…

A: Introduction: DC generator: DC generator is a machine that converts mechanical form of energy in to…

Q: ind the number of parallel paths for a 4-pole duplex lap winding.

A: There are two types of windings method can be applied to the dc machine Lap winding Wave winding.

Q: Explain differntial compounding of a dc machine.

A: The DC machine that have both the series and the shunt winding is known as the differential compound…

Q: A long shunt compound DC generator delivers a load current of 150A at 230V and has armature, series…

A: In the DC long shunt compound generator Find the induced power ? Total generated power? Total…

Concept explainers

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

Question

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 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Winding and Construction of the Rotor and Stator

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

A three-phase, 4-pole, 1,500 rpm alternating having a double layer-windings with 18 turns per coil. The slots per pole per phase are 10 and the coil span is 22 slots. The spread phase is 60 degrees and the flux per pole is 0.0625 Weber. If the armature windings are wye connected. a) Determine the generated voltage per phase and the line to line voltages. b) If the alternator is delivering a three - phase load of 1,200KW at 0.8 lagging power factor what is the line current of the alternator
Discussion:- 1. What do you understand by "armature- reaction"? Discuss the effect of armature reaction in an alternator when it is loaded with resistive, inductive and capacitive loads. 2. Give the value of voltage regulation for different power factors at full load current and interpret their values.
A thicker wire is used in the DC series field winding than DC shunt field winding in DC machines. * O because it carries the load current. O to prevent mechanical vibrations. O to provide strength. O to produce large flux. The speed of a DC motor can be changed by varying - armature resistance circuit O flux per pole O voltage source O all of above
1.b. In large power transformers, the unequal voltage distribution caused by voltage surges in the winding isprevented by the use ofA. static shields.B. series capacitors.c. low-voltage arresters.
What are the conditions in paralleling of these DC Generators:a. Shuntb. Seriesc. Compound
Q5/A single phase, 50-Hz transformer has 80 turns on the primary winding and 400 turns on the secondary winding. The net cross-sectional area of the core is 200 cm2. If the primary winding is connected to 240-V, 50-Hz supply, determine (a) the emf induced in the secondary winding, and (b) the maximum flux density in the core. ()
1. In a transformer, which options are correct:A. Works on Faraday’ law and Ampere’s lawB. DC current in the primary winding will produce voltage output in the secondary windingC. Copper losses are caused by reluctance in magnetic circuitD. Frequency of input power source will not govern the voltage induced in secondary circuit.2. Voltage ratio of input voltage and output voltage in IDEAL transformer depends on:A. Leakage fluxB. Magnetization currentC. Copper loss currentD. Turns ratio3. The core of transformer must have:
A 10-kVA, 1-phase transformer has a turn ratio of 300/23. The primary is connected to a 1500-V, 60 Hz supply. Find the secondary volts on open-circuit and the approximate values of the currents in the two windings on full-load. Find also the maximum value of the flux.
Single phase half wave AC-AC converter has a resistance of R = 50 ohms. Input voltage is given as 230 Vrms. Transformer conversion ratio is 1:1. If T1 thyristor is triggered at 60 degrees; a)Rms output voltage? b)Output power? c)RMS load current and average load current? d)Input power factor? e)Average and RMS thyristor current?
Fill in the following blanks:1. Lap winding is suitable for ……. Voltage, …… current d.c. generators.2. The critical resistance of the d.c. generator is the resistance of ……. .
A 2MVA, 2.3kV three – phase Y – connected alternator operates at rated kVA at a power factor of 80%. The dc armature winding resistance between terminals is 0.08 ohm. The field takes 70 A at 125 V from an exciter equipment. Friction and windage loss is 20kW, iron losses 36kW and stray load losses are 2.0 kW. Calculate the efficiency of the alternator. Assume the effective armature winding resistance is 120% of the DC resistance. a. 94.0 % b. 92.1 % c. 93.2 % d. 89.5 %
a) Define what the term "permeability" means. Explain why this is an important parameter in designing transformers. b) A maximum current of 60 A flows in a copper conductor with cross-sectional area, A. u7 ond o recistivity of 20 n0. m. A 250 m cable is being used on a 240 V DC circuit to