This document discusses the construction and working of transformers. It begins with an introduction that defines a transformer as a device that changes AC electric power at one voltage level to another through magnetic coupling of two coils. It then covers the main topics of the structure and working principle of transformers, the different types of constructions including core and shell types, losses in transformers including copper, hysteresis and eddy current losses, the differences between ideal and practical transformers, and applications such as in transmission and distribution of power.
A transformer is a static electrical device that transfers electrical energy between two or more circuits. A varying current in one coil of the transformer produces a varying magnetic flux, which, in turn, induces a varying electromotive force across a second coil wound around the same core. Electrical energy can be transferred between the two coils, without a metallic connection between the two circuits. Faraday's law of induction discovered in 1831 described the induced voltage effect in any coil due to changing magnetic flux encircled by the coil
TRANSFORMER= परिणामित्र .....all basics about transformer......just a glance
.A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction.
A varying current in the transformer's primary winding creates a varying magnetic flux in the core and a varying magnetic field impinging on the secondary winding. This varying magnetic field at the secondary induces a varying electromotive force (EMF) or voltage in the secondary winding. Making use of Faraday's Law in conjunction with high magnetic permeability core properties, transformers can thus be designed to efficiently change AC voltages from one voltage level to another within power networks.
A transformer is a static electrical device that transfers electrical energy between two or more circuits. A varying current in one coil of the transformer produces a varying magnetic flux, which, in turn, induces a varying electromotive force across a second coil wound around the same core. Electrical energy can be transferred between the two coils, without a metallic connection between the two circuits. Faraday's law of induction discovered in 1831 described the induced voltage effect in any coil due to changing magnetic flux encircled by the coil
TRANSFORMER= परिणामित्र .....all basics about transformer......just a glance
.A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction.
A varying current in the transformer's primary winding creates a varying magnetic flux in the core and a varying magnetic field impinging on the secondary winding. This varying magnetic field at the secondary induces a varying electromotive force (EMF) or voltage in the secondary winding. Making use of Faraday's Law in conjunction with high magnetic permeability core properties, transformers can thus be designed to efficiently change AC voltages from one voltage level to another within power networks.
Construction & E.M.F. eqn. of transformerJay Baria
In this ppt, construction and emf equation of transformer is shown and also the types of transformer and its various losses and its application is given in the presentation.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
2. CONTENT
What is transformer
Structure and working principle
Construction of transformer
Losses in transformer
Ideal v/s practical transformer
Uses and application of transformer
3. INTRODUCTION
A transformer is a device that changes ac electric power at one
voltage level to ac electric power at another voltage level
through the action of a magnetic field.
There are two or more stationary electric circuits that are
coupled magnetically.
It involves interchange of electric energy between two or more
electric systems
Transformers provide much needed capability of changing the
voltage and current levels easily.
They are used to step-up generator voltage to an appropriate
voltage level for power transfer.
Stepping down the transmission voltage at various levels for
distribution and power utilization.
4. WHATISTRANSFORMER
A transformer is a static piece of apparatus by means of
which an electrical power is transferred from one
alternating current circuit to another electrical circuit
There is no electrical contact between them
The desire change in voltage or current without any
change in frequency
Symbolically the transformer denoted as
NOTE :
Itworksontheprincipleofmutualinduction
5.
6. STRUCTUREOFTRANSFORMER
The transformer two inductive coils ,these are electrical
separated but linked through a common magnetic current
circuit
These two coils have a high mutual induction
One of the two coils is connected of alternating voltage .this
coil in which electrical energy is fed with the help of source
called primary winding (P) shown in fig.
The other winding is connected to a load the electrical energy
is transformed to this winding drawn out to the load .this
winding is called secondary winding(S) shown in fig.
7. The primary and secondary coil wound on a ferromagnetic
metal core
The function of the core is to transfer the changing magnetic
flux from the primary coil to the secondary coil
The primary has N1 no of turns and the secondary has N2 no of
turns the of turns plays major important role in the function of
transformer
8. WORKINGPRINCIPLE
The transformer works in the principle of mutual induction
“The principle of mutual induction states that when the two coils are
inductively coupled and if the current in coil change uniformly then the
e.m.f. induced in the other coils. This e.m.f can drive a current when a
closed path is provide to it.”
When the alternating current flows in the primary coils, a
changing magnetic flux is generated around the primary coil.
The changing magnetic flux is transferred to the secondary coil
through the iron core
The changing magnetic flux is cut by the secondary coil, hence
induces an e.m.f in the secondary coil
9. Now if load is connected to a secondary winding, this e.m.f
drives a current through it
The magnitude of the output voltage can be controlled by the
ratio of the no. of primary coil and secondary coil
The frequency of mutually induced e.m.f as same
that of the alternating source which supplying to the
primary winding b
10.
11. CONSTRUCTIONOFTRANSFORMER
These are two basic of transformer construction
Magnetic core
Windings or coils
Magnetic core
The core of transformer either square or rectangular type in
size
It is further divided into two parts vertical and horizontal
The vertical portion on which coils are wounds called limb
while horizontal portion is called yoke. these parts are
Core is made of laminated core type constructions, eddy
current losses get minimize.
Generally high grade silicon steel laminations (0.3 to 0.5mm)
are used
12. WINDING
Conducting material is used in the winding of the transformer
The coils are used are wound on the limbs and insulated from
each other
The two different windings are wounds on two different limbs
The leakage flux increases which affects the performance and
efficiency of transformer
To reduce the leakage flux it is necessary that the windings
should be very close to each other to have high mutual
induction
13. CORETYPECONSTRUCTION
In this one magnetic circuit and cylindrical coils are used
Normally L and T shaped laminations areused
Commonly primary winding would on one limb while
secondary on the other but performance will be reduce
To get high performance it is necessary that other the two
winding should be very close to each other
14.
15. SHELLTYPECONSTRUCTION
In this type two magnetic circuit are used
The winding is wound on central limbs
For the cell type each high voltage winding lie between two
voltage portion sandwiching the high voltage winding
Sub division of windings reduces the leakage flux
Greater the number of sub division lesser the reactance
This type of construction is used for high voltage
16.
17. LOSSESINTRANSFORMER
Copper losses :
It is due to power wasted in the form of I2Rdue to
resistance of primary and secondary. The magnitude of
copper losses depend upon the current flowing through
these coils.
The iron losses depend on the supply voltage while the copper depend
on the current .the losses are not dependent on the phase angle between
current and voltage .hence the rating of the transformer is expressed as
a product o f voltage and current called VArating of transformer. It is
not expressed in watts or kilowatts. Most of the timer, is rating is
expressed in KVA.
18. Hysteresis loss :
During magnetization and demagnetization ,due to hysteresis
effect some energy losses in the core called hysteresis loss
Eddy current loss :
The leakage magnetic flux generates the E.M.F in the core
produces current is called of eddy current loss.
19. IDEALV/SPRACTICALTRANSFORMER
A transformer is said to be ideal if it satisfies the
following properties, but no transformer is ideal in
practice.
It has no losses
Windings resistance are zero
There is no flux leakage
Small current is required to produce the magnetic field
While the practical transformer has windings resistance ,
some leakage flux and has lit bit losses
20. APPLICATIONANDUSES
The transformer used in television and photocopy
machines
The transmission and distribution of alternating power is
possible by transformer
Simple camera flash uses fly back transformer
Signal and audio transformer are used couple in
amplifier
Todays transformer is become an essential part of
electrical engineering
21. REFERENCE
Electrical engineering by UA Bakshi
Principal of electrical machine by VK Mehta
Electrical machine by RK Rajput
www.allaboutcircuit.com
www.iiee.com