Q5: A 3-phase, 50 Hz, 8-pole alternator has a star-connected winding with 120 slots and 8 conductors per slot.The flux per pole is 0.05 Wb, sinusoidally distributed. Determine the phase and line voltages.

Q5: A 3-phase, 50 Hz, 8-pole alternator has a star-connected winding with 120 slots and 8 conductors per slot.The flux per pole is 0.05 Wb, sinusoidally distributed. Determine the phase and line voltages.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter31: Three-phase Alternators

Section: Chapter Questions

Problem 1RQ: What conditions must be met before two alternators can be paralleled together?

See similar textbooks

Related questions

Q: A single phase circuit with a given load 3 ohm resistance and inductive reactance of 4 ohms as…

A: The question is about active power, reactive power and apparent power, power factor.

Q: An alternator has an armature of 12 poles, having a flux of 0.0988 Wb and 72 slots. Calculate: (a)…

Q: A 3-phase, 12-pole, star-connected alternator has 180 slots with 10 conductors per slot and the…

A: Per phase Emf induced in alternator = 4.44 ×frequency ×flux per pole × per phase turns winding…

Q: Using a simple AC generator or alternator, show completely and correctly how…

A: We will refer the concept of AC generator and operation by magnetic field.

Q: An alternator is at lagging power factor when it is normally excited True False

Q: 7. A 3-phase, Y-connected, 2-pole alternator runs at 3,600 r.p.m. If there are 500 condu series on…

A: In this question , we will find magnitude and frequency of the generated voltage... Note:- as per…

Q: QIFind the no-load phase and line voltage of a star-connected, 4-pole,50 Hz alternator, having flux…

Q: The voltage regulation of alternator can be regulated by changing its rotational speed. O True O…

Q: Q3 A 3-phase, Y-connected, 2-pole alternator runs at 3,600 r.p.m. If there are 500 conductors per…

A: The solution is given below

Q: A 8 pole, three-phase, star-connected alternator has an armature with 140 slots and 6 conductors per…

A: 3 phase star connected alternator has 8 pole, total no of slot =140 6 conductor per slot Speed N=…

Q: In a three phase cylindrical rotor alternator, the resultant armature reaction MMF behaves like a…

A: Armature reaction in three phase alternator: Armature reaction in any machine is the distortion in…

Q: A three-phase, star-connected alternator has 6 number of poles, armature with 160 slots and 6…

Q: A 400 v, 50 Hz, three phase alternators, rated at 75 kVA, is star connected and driven at 1000…

A: According to the question we have to find the smallest lagging power factor at which the alternator…

Q: Q1/ Calculate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors…

A: Given data, Speed is N = 1500 rpm, Pole is P = 4, Conductor per slot = 16, Slots per pole per phase…

Q: QI/ Caleulate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors…

Q: The rating of a three-phase star-connected alternator is 1750 KVA, 11 KV, The armature resistance is…

Q: A 3-phase alternator generates an open circuit voltage of 4000 V per phase when exiting current is…

A: The solution is given below

Q: Two alternators are connected in parallel to feed a load together. The no-load frequency of the…

A: G1 has a no-load frequency of 51.5 Hz and a slope sP1 of 1MW/Hz.G2 has a no-load frequency of 51Hz…

Q: An alternator has an armature of 12 poles, having a flux of 0.0988 Wb and 72 slots. Calculate: (a)…

A: The alternator parameters are as follows: Number of poles=12 Flux per pole= 0.0988 Wb Armature…

Q: A three-phase, star-connected alternator has 6 number of poles, armature with 140 slots and 4…

Q: Two alternators are operating in parallel and sharing a common load. For increasing the load shared…

A: The explanation is as follows.

Q: A three-pole three-phase alternator is rotating at 1200 rpm, what is the output frequency? (Insert…

A: In this question we will find output frequency....

Q: 5.When combined with a CSD ,a brushless three phase se AC generator is often referred to as: (a)a…

A: The answer of the following questions are

Q: A dc 4 pole wave wound generator is running at 1000 rpm having 1200 conductors and flux density is…

A: Given Data: Z = 1200 N = 1000 A = 2 P = 4 flux = 10 mwb

Q: 4-pole, 3-phase, 50-Hz, star-connected alternator has 60 slots, with 4 conductors per slot. Coils…

A: To calculate line voltage induced

Q: The reactive power output of an alternator is limited by load angle True False

Q: A 4-pole, 3 phase, 50 Hz, wye-connected alternator has 44 slots with 60 turns in each coil and…

Q: 1. Find the no-load phase and line voltage of a star-connected, 4-pole alternator having flux per…

Q: A three-phase, star-connected alternator has 8 number of poles, armature with 160 slots and 2…

Q: Indicate the equation that allows determining the voltage generated per phase, in a three-phase…

A: The explanation is as follows.

Q: A 36-pole alternator is operated at 20 rps. What frequency is generated? Also At what speed should a…

Q: A three-phase, star-connected alternator has 8 number of poles, armature with 120 slots and 2…

Q: A 6-pole ,3 phase , 60 cycle alternator has 12 slots per pole and four conductor per slot. The…

Q: Find the pitch factor of a 6- pole 72-pole, three phase alternator if its if its short pitch by 2…

A: The solution is given below

Q: c) Compute the no load line voltage of a star connected 4-pole alternator for the following data:…

A: Given data, The flux per pole =0.12Wb, Slot per pole per phase = 4 Conductor/slot = 4, Two-layer…

Q: A 25cps single-phase, 8-pole, alternator with 725 mWb flux per pole has 288 slots. The machine coil…

Q: Two similar single phase alternators are operating in parallel. The armature winding resistance of…

Q: A 4 pole, 3 phase, star-connected alternator has 24 slots with 12 conductors per slot and the flux…

Q: An alternator is at lagging power factor when it is normally excited O True False

Q: 5. A 4-pole 3-phase 60 Hz wye-connected alternator has 24 slots with 40 turns in each coil and…

Q: phase, 10 pole, Y-connected alternator runs at 600 rpm. It has 120 stator slots with 8 conductors…

A: In this question , we will find phase and line emf for star connected alternator..

Q: Find the no load line voltage of a star connected 4-pole alternator form the following: Flux per…

A: An alternator/Synchronous generator is a type of electrical machine that converts mechanical energy…

Q: Problems 1. Find the rms values of different harmonic components and total emf per phase for an…

A: RMS value of harmonics and emf is calculated as shown below

Q: A 4 pole, three-phase, star-connected alternator has an armature with 120 slots and 4 conductors per…

A: Given, A 3 phase , star connected alternator has, Number of poles (P)=4 Number of slots (S)= 120 and…

Q: A 3-phase, 10-pole alternator has 90 slots, each containing 12 conductors. If the speed is 600 rpm…

A: Given: P=3No.of slots=90No. of conductors=12N=600 rpmϕ=0.1 WbKw=0.96 Step 1: Calculate no. of turns…

Q: As the leading pf of the load of an alternator decreases, the magnitude of generated voltage…

A: The v-curve of synchronous generator is shown below:

Q: and synchronous reactance per phase = 2.252. Find the % regulation for a power factor of 0.707…

Q: A 6 pole alternator with 36 slots carries a 2-phase distributed winding.each coil is short pitched…

A: Given: P=6S=36m=2Distributed winding

Q: A three-phase, star connected alternator runs at 600 rpm. It has 120 stator slots with 8 conductor…

Concept explainers

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.

Question

Q5: A 3-phase, 50 Hz, 8-pole alternator has a star-connected winding with 120 slots and
8 conductors per slot.The flux per pole is 0.05 Wb, sinusoidally distributed. Determine the
phase and line voltages.

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

Step 2

Step 3

Step 4

Step by step

Solved in 4 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

1.) A 6-pole, 3-phase, 60-Hz alternator has 12 slots per pole and four conductors per slot. The winding is 5/6 pitch. There are 0.025 Wb entering the armature from each north pole, and this flux is sinusoidally distributed along the air gap. The armature coils are all connected in series. The winding is wye-connected. Determine the open circuit emf per phase of the alternator. Subject Electrical machine 2
The rotating part in an alternator is ................
b) Explain the conditions of parallel connection of alternators and how these conditions are fulfilled.
There are 72 slots in a 3-phase, 8-pole, 50 Hz, star connected alternator. There are 2 conductors in each slot and all the conductors in a phase are connected in series. Coil span is 150° electrical and the flux per pole is 0.05 Weber sinusoidally distributed. Calculate the emf induced per phase.
A three phase, 50 Hz, 8 pole alternator has a star connected winding with 120 slots and 6 conductor per slot. The flux per pole is 0.05 Wb, sinusoidally distributed. Determine the phase and line voltages if the coil is full pitched.
Generate a conclusion on this following statements: Determine and analyze the voltage regulation characteristics of the alternator with resistive, capacitive, and inductive loading.
There are 144 slots in a 3-phase, 16-pole, 50 Hz., star connected alternator. There are 4 conductors in each slot and all the conductors in a phase are connected in series. Coil span is 1500 electrical and the flux per pole is 0.05 Weber sinusoidallly distributed. Calculate the emf induced per phase.
Transformers.
Calculate the speed and open-circuit line and phase voltages of a 4-pole, 3-phase, 50-Hz, star-connected alternator with 36 slots and 19 conductors per slot. The flux per pole is 0.019 Wb and is sinusoidally distributed.
A 3-phase, 16 pole alternator has a star connected winding with 144 slot and 10 conductor per slot. The flux per pole is 30 mWb sinusoidally distributed and the speed is 375 rpm. The frequency of generated emf is? Also find, the line emf is?
A 3-phase,50Hz, 4-pole, Y-connected alternator has 6 slots per pole per phase. The armature has double layers winding. The windings are arranged as 5 conductors per layer. The coil pitch is 5/6th of the full pitch and the flux per pole is o.o5Wb. Determine the voltag per phase
8-pole 3-phase star-connected alternator with 144 grooves in its armature rotates at 900 rpm. There are 12 conductors in each groove in the armature of the alternator. The magnetic flux of one pole is 1.8.10 ^ 6 maxwels. Coils (1-16) were wound in -15 steps. Accordingly, find the phase and interphase voltages induced in the inductor of the alternator. (The speed of the alternator will be taken as synchronous speed ns.)