This document discusses the advantages of a rotating field in an electric motor. It lists 5 key advantages: 1) It avoids interaction between mechanical and electrical stresses, 2) It is easier to collect high voltages from a stationary member than from slip rings, 3) It avoids sparking at slip rings by keeping the low voltage field rotating and high voltage armature stationary, 4) Ventilation can be improved by keeping the high voltage side stationary, 5) A 3-phase armature can be directly connected to a load.
working principle of alternators and its kind _What you've just experienced is an example of an alternator breathing its last breath.
Your first thought might have been the battery is dying. In a sense, you would be right because the battery and the alternator are related, but the battery tends to get all the press.
This presentation aims to explain the mechanics of alternators, how you can diagnose problems and what you can do if you have a bad alternator.
You will come to now to some background information about alternators and the war of the currents.
An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature.
An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature. Occasionally, a linear alternator or a rotating armature with a stationary magnetic field is used. In principle, any AC electrical generator can be called an alternator, but usually the term refers to small rotating machines driven by automotive and other internal combustion engines. An alternator that uses a permanent magnet for its magnetic field is called a magneto. Alternators in power stations driven by steam turbines are called turbo-alternators. Large 50 or 60 Hz three phase alternators in power plants generate most of the world's electric power, which is distributed by electric power grids.
working principle of alternators and its kind _What you've just experienced is an example of an alternator breathing its last breath.
Your first thought might have been the battery is dying. In a sense, you would be right because the battery and the alternator are related, but the battery tends to get all the press.
This presentation aims to explain the mechanics of alternators, how you can diagnose problems and what you can do if you have a bad alternator.
You will come to now to some background information about alternators and the war of the currents.
An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature.
An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature. Occasionally, a linear alternator or a rotating armature with a stationary magnetic field is used. In principle, any AC electrical generator can be called an alternator, but usually the term refers to small rotating machines driven by automotive and other internal combustion engines. An alternator that uses a permanent magnet for its magnetic field is called a magneto. Alternators in power stations driven by steam turbines are called turbo-alternators. Large 50 or 60 Hz three phase alternators in power plants generate most of the world's electric power, which is distributed by electric power grids.
The single-phase motor, which are designed to operate from a single-phase supply, are manufactured in a large number of types to perform a wide variety of useful services in home, offices, factories, workshops and in a business establishments etc.
Small motors, particularly in the frictional kW sizes are better known than any other. In fact, most of the new products of the manufacturers of space vehicles, aircrafts, business machines and power tools etc. have been possible due to of the advances made in the design of frictional kW motors. Since the performance requirements of the various applications differ so widely, the motor manufacturing industry has developed many different types of such motors, each being designed to meet specific demands.
Single-phase motors may be classified as under, depending on their construction and method of starting:
1. Induction Motors (split-phase, capacitor and shaded-pole etc.)
2. Repulsion Motors (sometime called inductive-series motor)
3. AC Series Motor, and
4. Un-excited Synchronous Motors
Working principle of synchronous generator,Synchronous motor, Working princip...Prasant Kumar
#Working principle of synchronous generator
#Working principle of synchronous motor
#Working principle of alternator
#Synchronous machine kaise work karta hai
A generator is a device that convert Mechanical energy into electrical energy using electromagnetic induction.
A DC generator produces direct power based on fundamental principle of Faraday's laws of electromagnetic induction.
According to this laws, Whenever a conductor is moved within a magnetic field in such a way that the conductor cuts across magnetic lines of flux, voltage is generated in the conductor.
Syllabus
Introduction of Machine
Classification of Machine
Construction of DC, Induction & Synchronous machine
Working Principle of
DC Machine
Induction machine
Synchronous machine
EMF Equation of all machine
………
A transformer works on alternating current, while a DC machine works on Direct Current
It has two main parts :
Stator – It is the stationary part. It does not move or rotate.
Rotor – It is the rotating part of the machine.
YOKE
It is the outermost part of a DC motor. It is made of cast iron or cast steel.
It provides mechanical protection to the inner parts of the machine.
Provide low reluctance path for the magnetic flux.
Pole core
These are made of cast steel laminations.
The main purpose is to hold the field windings .
The end portion of the pole is called pole shoe.
FIELD WINDING
They are enameled copper wires wound around the poles
When current passes through series connected windings then adjacent poles attain opposite polarity
Armature core
This is the rotating part of the machine
It is a cylindrical structure with slots around its outer periphery.
It houses conductors in the slots.
It provides easy path for magnetic flux
Introduction of Machine,Classification of Machine,Construction of DC, Induction & Synchronous machine,Working Principle,DC Machine,Induction machine,Synchronous machine,EMF Equation of all machine
THIS PPT IS FULL EXPLATION OF AC GENERATOR.IT CONTAINS ALL THE TOPICS UNDER WORKING ,CUNSTRUCTION,ADVANTAGES & DISADVANTAGES REGARDING AC GENERATOR.
IT IS HELPFULL FOR EVERY SCIENCE STUDENT.HOPE YOU ALL LIKE MY WORK.
Working of synchronous machine, Construction of synchronous machine, Types o...Self-employed
Subject : AC Machine
Topic: Working of synchronous machine, Construction of
synchronous machine, Types of synchronous machine,
Application of synchronous machine
Alternator,Uses of Alternator ,Working principle ,Basic structure
,Types of Rotor ,Pitch Factor,Distribution Factor,Speed of alternator
,Unity Power Factor ,Zero Power Factor Lagging,Zero Power Factor Leading ,Alternator on Load
alternators its types and its functions….What you've just experienced is an example of an alternator breathing its last breath.
Your first thought might have been the battery is dying. In a sense, you would be right because the battery and the alternator are related, but the battery tends to get all the press.
This presentation aims to explain the mechanics of alternators, how you can diagnose problems and what you can do if you have a bad alternator.
You will come to now to some background information about alternators and the war of the currents.
The single-phase motor, which are designed to operate from a single-phase supply, are manufactured in a large number of types to perform a wide variety of useful services in home, offices, factories, workshops and in a business establishments etc.
Small motors, particularly in the frictional kW sizes are better known than any other. In fact, most of the new products of the manufacturers of space vehicles, aircrafts, business machines and power tools etc. have been possible due to of the advances made in the design of frictional kW motors. Since the performance requirements of the various applications differ so widely, the motor manufacturing industry has developed many different types of such motors, each being designed to meet specific demands.
Single-phase motors may be classified as under, depending on their construction and method of starting:
1. Induction Motors (split-phase, capacitor and shaded-pole etc.)
2. Repulsion Motors (sometime called inductive-series motor)
3. AC Series Motor, and
4. Un-excited Synchronous Motors
Working principle of synchronous generator,Synchronous motor, Working princip...Prasant Kumar
#Working principle of synchronous generator
#Working principle of synchronous motor
#Working principle of alternator
#Synchronous machine kaise work karta hai
A generator is a device that convert Mechanical energy into electrical energy using electromagnetic induction.
A DC generator produces direct power based on fundamental principle of Faraday's laws of electromagnetic induction.
According to this laws, Whenever a conductor is moved within a magnetic field in such a way that the conductor cuts across magnetic lines of flux, voltage is generated in the conductor.
Syllabus
Introduction of Machine
Classification of Machine
Construction of DC, Induction & Synchronous machine
Working Principle of
DC Machine
Induction machine
Synchronous machine
EMF Equation of all machine
………
A transformer works on alternating current, while a DC machine works on Direct Current
It has two main parts :
Stator – It is the stationary part. It does not move or rotate.
Rotor – It is the rotating part of the machine.
YOKE
It is the outermost part of a DC motor. It is made of cast iron or cast steel.
It provides mechanical protection to the inner parts of the machine.
Provide low reluctance path for the magnetic flux.
Pole core
These are made of cast steel laminations.
The main purpose is to hold the field windings .
The end portion of the pole is called pole shoe.
FIELD WINDING
They are enameled copper wires wound around the poles
When current passes through series connected windings then adjacent poles attain opposite polarity
Armature core
This is the rotating part of the machine
It is a cylindrical structure with slots around its outer periphery.
It houses conductors in the slots.
It provides easy path for magnetic flux
Introduction of Machine,Classification of Machine,Construction of DC, Induction & Synchronous machine,Working Principle,DC Machine,Induction machine,Synchronous machine,EMF Equation of all machine
THIS PPT IS FULL EXPLATION OF AC GENERATOR.IT CONTAINS ALL THE TOPICS UNDER WORKING ,CUNSTRUCTION,ADVANTAGES & DISADVANTAGES REGARDING AC GENERATOR.
IT IS HELPFULL FOR EVERY SCIENCE STUDENT.HOPE YOU ALL LIKE MY WORK.
Working of synchronous machine, Construction of synchronous machine, Types o...Self-employed
Subject : AC Machine
Topic: Working of synchronous machine, Construction of
synchronous machine, Types of synchronous machine,
Application of synchronous machine
Alternator,Uses of Alternator ,Working principle ,Basic structure
,Types of Rotor ,Pitch Factor,Distribution Factor,Speed of alternator
,Unity Power Factor ,Zero Power Factor Lagging,Zero Power Factor Leading ,Alternator on Load
alternators its types and its functions….What you've just experienced is an example of an alternator breathing its last breath.
Your first thought might have been the battery is dying. In a sense, you would be right because the battery and the alternator are related, but the battery tends to get all the press.
This presentation aims to explain the mechanics of alternators, how you can diagnose problems and what you can do if you have a bad alternator.
You will come to now to some background information about alternators and the war of the currents.
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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.
For more technical information, visit our website https://intellaparts.com
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
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.
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.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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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
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.
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.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
4. The various advantages of rotating field can be stated as
follows:-
1)This avoids the interaction of mechanical and electrical
stresses.
2) It is easier to collect larger currents at very high voltage
from a stationary member than from the slip ring and brush
assembly.
3) The problem of sparking at the slip rings can be avoided by
keeping field rotating which is low voltage circuit and high voltage
armature as stationary.
4) The ventilation arrangement for high voltage side can be
improved if it is kept stationary.
5)3-ɸ armature can be directly connected to load.
5. -It is a Iron Ring.
-It has Slots on its periphery.
-It is stationary part and is in stator.
-Field Rotates in between thestator causing eddy
current loss in the stator.
-To minimise eddy current loss, stator is laminated
6. -The slots consits of coils which are wound on it.
-These coils form armature winding.
1) First and most important property of an armature
winding is, two sides of any coil should be under
two adjacent poles. That means, coil span = pole
pitch.
2) The winding can either be single layer or double
layer.
3) Winding is so arranged in different armature slots,
that it must produce sinusoidal emf.
7. Rotaion of pole over a rotating shaft is called Rotating Feild
A ring in a dynamo or electric motor which is attached to and rotates
with the shaft, passing an electric current to a circuit via a fixed brush
pressing against it.
8. Field coil: the electric coil around a field magnet that produces the magneto
motive force to set up the flux in an electric machine.
-It is slow andmoderate speed Alternator
-It is made up of large circular steel frame
-Field Winding are connected in series
-It is used in large power station because it
causes noise pollution and it cannot
withstand mechanical stresses.
9. -It is having no. ofslots along the outer periphery
-Field Winding are connected in series to slip ring
-High speed alternator use non salient type rotor
because it is noiseless and better emf is
produced
10. • Wide range of RPM
• Lighter in weight
• More delicate
• Needs field current
• More complicated
• Narrow RPM range
• Heavier for output
• Bulletproof
• Needs to turn
• Very simple system
11. The output frequency of an alternator depends on the number of poles and the rotational
speed.
Rotor speed in r.p.m
No. of rotor poles
Frequency of e.m.f in Hz
12.
13.
14. -The rotor winding is energized from a DC supply
-When the rotor rotates, emf is induced in the armature due to electromagnetic induction
-The direction of induced emf can be found by fleming’s right hand rule and the
frequency is given by
15. •In synchronous motor the speed remains constant irrespective of the loads.
This characteristics helps in industrial drives where constant speed is required
irrespective of the load it is driving. It also useful when the motor is required to
drive another alternator to supply at a different frequency as in frequency
changes
•Synchronous motors can be constructed with wider air gaps than induction
motors which makes these motors mechanically more stable
•In synchronous motors electro-magnetic power varies linearly with the voltage
•Synchronous motors usually operate with higher efficiencies ( more than 90%)
especially in low speed and unity power factor applications compared to
induction motors
16. •Synchronous motors requires dc excitation which must be supplied from external
sources
•Synchronous motors are inherently not self starting motors and needs some
arrangement for its starting and synchronizing
•The cost per kW output is generally higher than that of induction motors
•These motors cannot be used for variable speed applications as there is no
possibility of speed adjustment unless the incoming supply frequency is adjusted
(Variable Frequency Drives)
•Synchronous motors cannot be started on load. Its starting torque is zero
•These motors have tendency to hunt
•When loading on the synchronous motor increases beyond its capability, the
synchronism between rotor and stator rotating magnetic field is lost and motor
comes to halt
•Collector rings and brushes are required resulting in increase in maintenance
•Synchronous motors cannot be useful for applications requiring frequent starting
or high starting torques required