1. A transformer transfers electrical energy between two stationary circuits through electromagnetic induction. It consists of two coils linked by a common magnetic core and operates without change in frequency.
2. An ideal transformer has negligible winding resistance and infinite core permeability, with no leakage flux or losses. A practical transformer model accounts for non-idealities like finite permeability and winding resistance.
3. Transformer tests determine losses and parameters for an equivalent circuit model. The open-circuit test measures core losses, while the short-circuit test measures copper losses at full load. Transformer regulation is the change in output voltage from no-load to full-load.
Its my PPT presentation about Single Phase Transformer.
In it only cover few point about single phase transformer like construction, working principle, emf equation and Transformer on load.
Ekeeda Provides Online Electrical and Electronics Engineering Degree Subjects Courses, Video Lectures for All Engineering Universities. Video Tutorials Covers Subjects of Mechanical Engineering Degree.
Transformers (Especially For 12th Std)Atit Gaonkar
It Is The One Which Will Help A Student To Recall or Study about Transformer.
The Principle, Constructions, Working, Ideal Transformer, Leakages, Efficiency, Cores, Related Solved Problems. etc. are readily available in this power-point.
O.C & S.C Test, Sumpner or back to back Test, Condition for maximum efficienc...Abhishek Choksi
Sub: DC Machines and Transformer (2130904)
Active Learning Assignment
Topic: O.C & S.C Test, Sumpner or back to back Test, Condition for maximum efficiency, All day Efficiency
Its my PPT presentation about Single Phase Transformer.
In it only cover few point about single phase transformer like construction, working principle, emf equation and Transformer on load.
Ekeeda Provides Online Electrical and Electronics Engineering Degree Subjects Courses, Video Lectures for All Engineering Universities. Video Tutorials Covers Subjects of Mechanical Engineering Degree.
Transformers (Especially For 12th Std)Atit Gaonkar
It Is The One Which Will Help A Student To Recall or Study about Transformer.
The Principle, Constructions, Working, Ideal Transformer, Leakages, Efficiency, Cores, Related Solved Problems. etc. are readily available in this power-point.
O.C & S.C Test, Sumpner or back to back Test, Condition for maximum efficienc...Abhishek Choksi
Sub: DC Machines and Transformer (2130904)
Active Learning Assignment
Topic: O.C & S.C Test, Sumpner or back to back Test, Condition for maximum efficiency, All day Efficiency
An A.C. device used to change high voltage low current A.C. into low voltage high current A.C. and vice-versa without changing the frequency
In brief,
1. Transfers electric power from one circuit to another
2. It does so without a change of frequency
3. It accomplishes this by electromagnetic induction
4. Where the two electric circuits are in mutual inductive influence of each other.
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
To understand the basic working principle of a transformer.
To obtain the equivalent circuit parameters from Open circuit and Short circuit tests, and to estimate efficiency & regulation at various loads.
Transformer construction, working principle explanation, types and operation, Characteristics, Phasor angle, application, advantages, and Disadvantages
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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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.
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.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
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Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
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.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
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
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
2. Content:-
• Introduction to transformer and its types
• Ideal transformer
• Practical transformer
• Short and open circuit test
• Voltage regulation
• Losses in transformer
3. INTRODUCTION
A transformer is a static device which
consist of two or more stationary
electrical circuit interlinked by a common
magnetic circuit for the purpose of
transferring electrical energy between
them. Without a change in frequency and
at a rated KVA .
4. Types of transformers :
Step up transformers – located at output of a
generator to step up the voltage level to
transmit the power. in which the primary
turns is less and secondary turns is more.
Step down transformers – Located at main
distribution or secondary level
transmission substations to lower the
voltage levels for distribution .in which the
primary turns is more and secondary turns
is less.
6. A) Core type B) Shell type
There are two types of transformer:-
i) Core form.
ii) Shell form
7. IDEAL TRANSFORMER
(SINGLE PHASE)
An ideal transformer is a imaginary transformer which
has following property:
1) The secondary and primary winding resistance are negligible.
2) The core has infinite permeablity.
3) The leakage flux and leakage inductance is zero.
4) There are no losses in ideal transformer like copper loss,
hystersis loss and eddy current loss.
8. Transformers at no load
The no load current If is needed to supply the no load
losses and to magnetize the transformer core.
fIu
Iw
v1
If
E1
IF
IF
IwIu
fo
9. for a no load transformer ,we have
f = fmsinwt
E1 = E1msinwt
E2 = E2msin(wt – 90)
Iw = Iocosfo
Iu = Iosinfo
10. Practical Transformer:-
An ideal transformer is useful in understanding the working
of a transformer. But it cannot be used for the computation
of the performance of a practical transformer due to the
non-ideal nature of the practical transformer. In a working
transformer the performance aspects like magnetizing
current, losses, voltage regulation, efficiency etc are
important. Hence the effects of the non-idealization like
finite permeability, saturation, hysteresis and winding
resistances have to be added to an ideal transformer to
make it a practical transformer.
11. REFFERAL VALUES
This is done here by replacing the secondary by a ‘hypothetical’
secondary having T1 turns which is ‘equivalent ’to the physical
secondary. The equivalence implies that the ampere turns, active and
reactive power associated with both the circuits must be the same.
Then there is no change as far as their effect on the primary is
considered.
Thus
V′2 = aV2, I′2 =I2a, r′2 = a2r2, x′l2 = a2xl2 , Z′L = a2ZL.
where a -turns ratio T1/T2
18. • The voltage at rated frequency is applied to that LV side
with the help of a variac of variable transformer.
• The HV side of the transformer is kept open. Now with help
of variac applied voltage is slowly increase until the
voltmeter gives reading equal to the rated voltage of the LV
side.
• After reaching at rated voltage, all three instruments reading
(Voltmeter, Ammeter and Wattmeter readings) are recorded.
• The ammeter reading gives the no load current I0 .
• As no load current I0 is quite small compared to rated
current of the transformer, the voltage drops due to this
electric current then can be taken as negligible.
19. • Since, voltmeter reading V can be considered equal to
secondary induced voltage of the transformer. The input
power during test is indicated by watt-meter reading.
• As the transformer is open circuited, there is no output
hence the input power here consists of core losses in
transformer and copper loss in transformer during no load
condition.
• The no load current in the transformer is quite small
compared to full load current so copper loss due to the
small no load current can be neglected.
• Hence the wattmeter reading can be taken as equal to core
losses in transformer.
• Therefore it is seen that the open circuit test on transformer
is used to determine core losses in transformer and
parameters of shunt branch of the equivalent circuit of
transformer.
23. • The voltage at rated frequency is applied to that HV side
with the help of a variac of variable transformer
• The LV side of the transformer is short circuited . Now with
help of variac applied voltage is slowly increase until the
ammeter gives reading equal to the rated current of the HV
side
• After reaching at rated current of HV side, all three
instruments reading (Voltmeter, Ammeter and Watt-meter
readings) are recorded
• The ammeter reading gives the primary equivalent of full
load current IL .
• As the voltage, applied for full load current in short circuit
test on transformer, is quite small compared to rated primary
voltage of the transformer, the core losses in transformer
can be taken as negligible here.
24. • Let’s, voltmeter reading is VSC . The input power during test
is indicated by watt-meter reading.
• As the transformer is short circuited, there is no output
hence the input power here consists of copper losses in
transformer
• Since, the applied voltage VSC is short circuit voltage in the
transformer and hence it is quite small compared to rated
voltage so core loss due to the small applied voltage can be
neglected.
• Hence the wattmeter reading can be taken as equal to copper
losses in transformer.
• Therefore it is seen that the Short Circuit test on transformer
is used to determine copper loss in transformer at full load
and parameters of approximate equivalent circuit of
transformer.
25. Transformer Voltage Regulation
100
100
=
loadfullV
loadfullVloadnoV
loadfullV
loadfullVloadnoV
gulationReVoltage%
p
pp
s
ss
Because a real transformer has series impedance within
it, the output voltage of a transformer varies with the
load even if the input voltage remains constant. The
voltage regulation of a transformer is the change in the
magnitude of the secondary terminal voltage from no-
load to full-load.
Referred to the primary side
26. Transformer losses
• The transformer losses are divided into electrical losses (copper
losses) and Magnetic losses (Iron losses).
• Copper losses in both the primary and secondary windings.
• Magnetic losses, these losses are divided into eddy current losses
and hysteresis losses.
2
2
21
2
1 RIRI
mhysteriseseddyi IVPPP 1=
27. Transformer Core losses
Eddy currents arise because of changing flux in core.
Eddy currents are reduced by laminating the core
Hysteresis losses are proportional to area of BH curve
and the frequency
These losses are reduced
by using material with a
“thin” BH curve
27
28. Copper loss
• Ideally copper loss is zero but practically
it is not possible however the winding is
made up of copper and it have some
resistance which is responsible for heat
loss or copper loss when the current is
flow through the winding