The document discusses the construction of induction machines. It describes how the stator contains three-phase windings distributed over multiple slots that can be connected in star or delta configurations. The rotor can also contain three-phase windings connected to slip rings, making the machine a slip ring induction machine. Alternatively, the rotor can contain copper or aluminum bars embedded in slots and shorted by end rings, creating a squirrel cage rotor. Squirrel cage rotors are robust, require no slip rings, and make induction machines suitable for hazardous environments. The document provides photographs of example stator, wound rotor, and squirrel cage rotor configurations.
THIS PPT MAINLY DISCUSS ABOUT DOUBLE CAGE INDUCTION MOTOR AND IT'S CONSTRUCTION AND THIS PPT MAINLY CONTAINS THE DIFFERENT CHARACTERISTICS OF THE MACHINE IN VARIOUS FACTORS ANTHE PLOTTINGS ARE ALSO WE CAN SEE IN THIS PPT SO IT IS SO USEFUL TO ELECTRICAL MACHINES STUDENTS
THIS PPT MAINLY DISCUSS ABOUT DOUBLE CAGE INDUCTION MOTOR AND IT'S CONSTRUCTION AND THIS PPT MAINLY CONTAINS THE DIFFERENT CHARACTERISTICS OF THE MACHINE IN VARIOUS FACTORS ANTHE PLOTTINGS ARE ALSO WE CAN SEE IN THIS PPT SO IT IS SO USEFUL TO ELECTRICAL MACHINES STUDENTS
Here you will find manufacturers,suppliers and exporters of three phase induction motor at your nearest place.These Three phase induction motor the power is transferred from stator to rotor winding through induction.
Here you will find manufacturers,suppliers and exporters of three phase induction motor at your nearest place.These Three phase induction motor the power is transferred from stator to rotor winding through induction.
Performance Evaluation of Self-Excited Cage and Cageless Three Phase Synchron...IJERA Editor
The concept of generating electrical power using reluctance generator is yet to be fully exploited, which will necessitate its development into industrial standard. This research aims to facilitate the development through a comparative evaluation of the performance of caged and cageless reluctance generators. A three-phase synchronous reluctance generator was modeled using existing information and its performance with or without a cage rotor was analyzed. Evaluation of the machines’ performance was carried out at both steady and dynamic states using MATLAB. The results show that a self-excited cage rotor synchronous reluctance generator yielded a power of 0.25 p.u compared to the cage-less rotor that yielded 0.2 p.u at an excitation of 62 μF; while on further excitation using capacitance of 110µF, the cage rotor yielded a higher power of 0.9p.u whereas the cageless rotor could not excite beyond 62 μF. This implies that the cage rotor generator has the ability to excite at capacitance values high enough to circulate rotor current in the machine windings due to the existence of remnant flux, magnetic saturation and rotor geometry. The removal of damper cage of a synchronous reluctance machine allows for more modifications of the rotor geometry which include reduction in the quadrature axis flux path and hence the quadrature axis reactance which ultimately improves the machine performance. This shows that a cage rotor generator can be deployed where higher power is required.
Modeling and Simulation of Five Phase Induction Motor using MATLAB/SimulinkIJERA Editor
Three phase Induction motors are invariably used in many residential, commercial, industrial & utility
applications because of low cost, reliable operation, robust operation and low maintenance. Multiphase motor
drives with phase number greater than three phase leads to an improvement in the medium to high power drives
application. The multiphase induction motor find application in special and critical area where high reliability is
demanded such as Electric vehicles/Hybrid Electric vehicles, aerospace application, ship propulsion and
locomotive traction and in high power application. This paper presents the MATLAB/Simulink implementation
of Induction motor. Reference frame theory is used for simulation of the five phase induction motor. Dynamic
model are employed to better understand the behavior of the induction motor in both steady state and transient
state.
ANALYSIS AND DESIGN OF MULTIPHASE INDUCTION MACHINE.pptxSomu Gupta
Induction motor are also called AC electric motor and the rotating torque in the
rotor is obtained due to electromagnetic induction in the rotating magnetic field of
the stator winding. As they operate at speed less than synchronous speed these
motor are also referred as asynchronous motor
Putting the SPARK into Virtual Training.pptxCynthia Clay
This 60-minute webinar, sponsored by Adobe, was delivered for the Training Mag Network. It explored the five elements of SPARK: Storytelling, Purpose, Action, Relationships, and Kudos. Knowing how to tell a well-structured story is key to building long-term memory. Stating a clear purpose that doesn't take away from the discovery learning process is critical. Ensuring that people move from theory to practical application is imperative. Creating strong social learning is the key to commitment and engagement. Validating and affirming participants' comments is the way to create a positive learning environment.
3.0 Project 2_ Developing My Brand Identity Kit.pptxtanyjahb
A personal brand exploration presentation summarizes an individual's unique qualities and goals, covering strengths, values, passions, and target audience. It helps individuals understand what makes them stand out, their desired image, and how they aim to achieve it.
RMD24 | Retail media: hoe zet je dit in als je geen AH of Unilever bent? Heid...BBPMedia1
Grote partijen zijn al een tijdje onderweg met retail media. Ondertussen worden in dit domein ook de kansen zichtbaar voor andere spelers in de markt. Maar met die kansen ontstaan ook vragen: Zelf retail media worden of erop adverteren? In welke fase van de funnel past het en hoe integreer je het in een mediaplan? Wat is nu precies het verschil met marketplaces en Programmatic ads? In dit half uur beslechten we de dilemma's en krijg je antwoorden op wanneer het voor jou tijd is om de volgende stap te zetten.
"𝑩𝑬𝑮𝑼𝑵 𝑾𝑰𝑻𝑯 𝑻𝑱 𝑰𝑺 𝑯𝑨𝑳𝑭 𝑫𝑶𝑵𝑬"
𝐓𝐉 𝐂𝐨𝐦𝐬 (𝐓𝐉 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬) is a professional event agency that includes experts in the event-organizing market in Vietnam, Korea, and ASEAN countries. We provide unlimited types of events from Music concerts, Fan meetings, and Culture festivals to Corporate events, Internal company events, Golf tournaments, MICE events, and Exhibitions.
𝐓𝐉 𝐂𝐨𝐦𝐬 provides unlimited package services including such as Event organizing, Event planning, Event production, Manpower, PR marketing, Design 2D/3D, VIP protocols, Interpreter agency, etc.
Sports events - Golf competitions/billiards competitions/company sports events: dynamic and challenging
⭐ 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐝 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬:
➢ 2024 BAEKHYUN [Lonsdaleite] IN HO CHI MINH
➢ SUPER JUNIOR-L.S.S. THE SHOW : Th3ee Guys in HO CHI MINH
➢FreenBecky 1st Fan Meeting in Vietnam
➢CHILDREN ART EXHIBITION 2024: BEYOND BARRIERS
➢ WOW K-Music Festival 2023
➢ Winner [CROSS] Tour in HCM
➢ Super Show 9 in HCM with Super Junior
➢ HCMC - Gyeongsangbuk-do Culture and Tourism Festival
➢ Korean Vietnam Partnership - Fair with LG
➢ Korean President visits Samsung Electronics R&D Center
➢ Vietnam Food Expo with Lotte Wellfood
"𝐄𝐯𝐞𝐫𝐲 𝐞𝐯𝐞𝐧𝐭 𝐢𝐬 𝐚 𝐬𝐭𝐨𝐫𝐲, 𝐚 𝐬𝐩𝐞𝐜𝐢𝐚𝐥 𝐣𝐨𝐮𝐫𝐧𝐞𝐲. 𝐖𝐞 𝐚𝐥𝐰𝐚𝐲𝐬 𝐛𝐞𝐥𝐢𝐞𝐯𝐞 𝐭𝐡𝐚𝐭 𝐬𝐡𝐨𝐫𝐭𝐥𝐲 𝐲𝐨𝐮 𝐰𝐢𝐥𝐥 𝐛𝐞 𝐚 𝐩𝐚𝐫𝐭 𝐨𝐟 𝐨𝐮𝐫 𝐬𝐭𝐨𝐫𝐢𝐞𝐬."
Buy Verified PayPal Account | Buy Google 5 Star Reviewsusawebmarket
Buy Verified PayPal Account
Looking to buy verified PayPal accounts? Discover 7 expert tips for safely purchasing a verified PayPal account in 2024. Ensure security and reliability for your transactions.
PayPal Services Features-
🟢 Email Access
🟢 Bank Added
🟢 Card Verified
🟢 Full SSN Provided
🟢 Phone Number Access
🟢 Driving License Copy
🟢 Fasted Delivery
Client Satisfaction is Our First priority. Our services is very appropriate to buy. We assume that the first-rate way to purchase our offerings is to order on the website. If you have any worry in our cooperation usually You can order us on Skype or Telegram.
24/7 Hours Reply/Please Contact
usawebmarketEmail: support@usawebmarket.com
Skype: usawebmarket
Telegram: @usawebmarket
WhatsApp: +1(218) 203-5951
USA WEB MARKET is the Best Verified PayPal, Payoneer, Cash App, Skrill, Neteller, Stripe Account and SEO, SMM Service provider.100%Satisfection granted.100% replacement Granted.
Premium MEAN Stack Development Solutions for Modern BusinessesSynapseIndia
Stay ahead of the curve with our premium MEAN Stack Development Solutions. Our expert developers utilize MongoDB, Express.js, AngularJS, and Node.js to create modern and responsive web applications. Trust us for cutting-edge solutions that drive your business growth and success.
Know more: https://www.synapseindia.com/technology/mean-stack-development-company.html
What is the TDS Return Filing Due Date for FY 2024-25.pdfseoforlegalpillers
It is crucial for the taxpayers to understand about the TDS Return Filing Due Date, so that they can fulfill your TDS obligations efficiently. Taxpayers can avoid penalties by sticking to the deadlines and by accurate filing of TDS. Timely filing of TDS will make sure about the availability of tax credits. You can also seek the professional guidance of experts like Legal Pillers for timely filing of the TDS Return.
Discover the innovative and creative projects that highlight my journey throu...dylandmeas
Discover the innovative and creative projects that highlight my journey through Full Sail University. Below, you’ll find a collection of my work showcasing my skills and expertise in digital marketing, event planning, and media production.
What are the main advantages of using HR recruiter services.pdfHumanResourceDimensi1
HR recruiter services offer top talents to companies according to their specific needs. They handle all recruitment tasks from job posting to onboarding and help companies concentrate on their business growth. With their expertise and years of experience, they streamline the hiring process and save time and resources for the company.
[Note: This is a partial preview. To download this presentation, visit:
https://www.oeconsulting.com.sg/training-presentations]
Sustainability has become an increasingly critical topic as the world recognizes the need to protect our planet and its resources for future generations. Sustainability means meeting our current needs without compromising the ability of future generations to meet theirs. It involves long-term planning and consideration of the consequences of our actions. The goal is to create strategies that ensure the long-term viability of People, Planet, and Profit.
Leading companies such as Nike, Toyota, and Siemens are prioritizing sustainable innovation in their business models, setting an example for others to follow. In this Sustainability training presentation, you will learn key concepts, principles, and practices of sustainability applicable across industries. This training aims to create awareness and educate employees, senior executives, consultants, and other key stakeholders, including investors, policymakers, and supply chain partners, on the importance and implementation of sustainability.
LEARNING OBJECTIVES
1. Develop a comprehensive understanding of the fundamental principles and concepts that form the foundation of sustainability within corporate environments.
2. Explore the sustainability implementation model, focusing on effective measures and reporting strategies to track and communicate sustainability efforts.
3. Identify and define best practices and critical success factors essential for achieving sustainability goals within organizations.
CONTENTS
1. Introduction and Key Concepts of Sustainability
2. Principles and Practices of Sustainability
3. Measures and Reporting in Sustainability
4. Sustainability Implementation & Best Practices
To download the complete presentation, visit: https://www.oeconsulting.com.sg/training-presentations
Personal Brand Statement:
As an Army veteran dedicated to lifelong learning, I bring a disciplined, strategic mindset to my pursuits. I am constantly expanding my knowledge to innovate and lead effectively. My journey is driven by a commitment to excellence, and to make a meaningful impact in the world.
Exploring Patterns of Connection with Social Dreaming
1 4
1. Electrical Machines II Prof. Krishna Vasudevan, Prof. G. Sridhara Rao, Prof. P. Sasidhara Rao
Indian Institute of Technology Madras
4 Construction
In actual practice, the three coils form three windings distributed over several slots. These
windings may be connected in star or delta and three terminations are brought out. These
are conventional three phase windings which are discussed in greater detail in the chapters
on alternators. Such windings are present n the stator as well as rotor. A photograph of
Figure 9: stator of an induction machine
the stator of an induction machine is shown in fig. 9. A close up of the windings is shown in
fig. 10.the several turns that makeup a coil are seen in this picture. The three terminations
are connected to rings on which three brushes make a sliding contact. As the rotor rotates
the brushes slip over the rings and provide means of connecting stationary external circuit
elements to the rotating windings. A schematic of these arrangements is shown in fig. 13. A
photograph of a wound rotor for an induction machine is shown in fig. 11. Fig. 12 shows a
close up of the slip ring portion. Brushes are not shown in this picture.
Induction machines, which have these kinds of windings and terminals that are brought
out, are called slip ring machines. The reader may note that in order that torque is produced
current must flow in the rotor. To achieve that, the stationary brush terminals must either
be shorted, or connected to a circuit allowing current flow. Sometimes a star connected
resistor bank is connected so that the developed starting torque is higher. There are also
other forms of power electronic circuitry that may be connected to the rotor terminals to
achieve various functions.
The popularity of the induction machine however, stems from another variety of rotor
11
2. Electrical Machines II Prof. Krishna Vasudevan, Prof. G. Sridhara Rao, Prof. P. Sasidhara Rao
Indian Institute of Technology Madras
Figure 10: Coils in the stator
Figure 11: A wound rotor with slip rings
12
3. Electrical Machines II Prof. Krishna Vasudevan, Prof. G. Sridhara Rao, Prof. P. Sasidhara Rao
Indian Institute of Technology Madras
Figure 12: slip rings
Slip rings(fixed to shaft)
Rotor shaft
Brushes(stationary)
Stationary terminals
Winding
on rotor
Sliding
Contact
v
Figure 13: Slip rings and brushes in induction machines — a schematic
13
4. Electrical Machines II Prof. Krishna Vasudevan, Prof. G. Sridhara Rao, Prof. P. Sasidhara Rao
Indian Institute of Technology Madras
that is used. This rotor has slots into which copper or aluminium bars are inserted. These
bars are then shorted by rings that are brazed on to each of the rotor ends. Figure 14 shows
a simple schematic.
Figure 14: Squirrel cage rotor — a schematic
Such a rotor is called squirrel cage rotor. This rotor behaves like a short-circuited winding
and hence the machine is able to perform electromechanical energy conversion. This type
of rotor is easy to manufacture, has no sliding contacts and is very robust. It is this feature
that makes induction machine suitable for use even in hazardous environments and reliable
operation is achieved. The disadvantage of this type of rotor is that the motor behavior
cannot be altered by connecting anything to the rotor — there are no rotor terminals.
Fig. 15 shows a photograph of a squirrel cage rotor. The rotor also has a fan attached
to it. This is for cooling purposes. The bars ( white lines on the surface) are embedded in
the rotor iron which forms the magnetic circuit. The white lines correspond to the visible
portion of the rotor bar.
Sometimes two rotor bars are used per slot to achieve some degree of variability in the
starting and running performances. It is to make use of the fact that while high rotor
14
5. Electrical Machines II Prof. Krishna Vasudevan, Prof. G. Sridhara Rao, Prof. P. Sasidhara Rao
Indian Institute of Technology Madras
Figure 15: squirrel cage rotor
resistance is desirable from the point of view of starting torque, low rotor resistance is
desirable from efficiency considerations while the machine is running. Such rotors are called
double cage rotors or deep-bar rotors.
To summarize the salient features discussed so far,
1. The stator of the 3 - phase induction machine consists of normal distributed AC wind-
ings.
2. Balanced three phase voltages impressed on the stator, cause balanced three phase
currents to flow in the stator.
3. These stator currents cause a rotating flux pattern (the pattern is a flux distribution
which is sinusoidal with respect to the space angle) in the air gap.
4. The rotating flux pattern causes three phase induced e.m.f.s in rotor windings (again
normal ac windings). These windings, if shorted, carry three phase-balanced currents.
Torque is produced as a result of interaction of the currents and the air gap flux.
5. The rotor may also take the form of a squirrel cage arrangement, which behaves in a
manner similar to the short-circuited three phase windings.
15