AC GENERATOR,GENERATOR presentation
•Download as PPTX, PDF•
10 likes•2,360 views
An AC generator converts mechanical energy to electrical energy using Faraday's law of electromagnetic induction. It contains a coil called an armature that rotates inside a magnetic field produced by magnets. As the armature spins, the changing magnetic flux induces an alternating current (AC) in the coils. Slip rings and carbon brushes allow the current to be conducted from the moving armature to an external circuit. The amount and direction of the induced current depends on the speed of rotation and position of the armature plane relative to the magnetic field.
Report
Share
Report
Share
Recommended
AC GENERATOR.pptx
The document summarizes the key components and working principle of an AC generator. The AC generator converts mechanical energy to electrical energy through electromagnetic induction. It has a field magnet that produces a magnetic field, an armature coil that rotates in this field, slip rings to carry the alternating current produced, and brushes to transfer the current to an external circuit. As the coil rotates, the changing magnetic flux induces an alternating current whose frequency depends on the rotation speed.
Simple ac generator
This document summarizes the components and working of a simple AC generator. It consists of a field magnet that produces a magnetic field, an armature coil that rotates in this field, slip rings to carry the changing current from the rotating coil, and brushes that transfer this current to an external circuit. As the coil rotates, it cuts the magnetic flux which induces an electromotive force based on Faraday's law of induction, causing an alternating current to be generated. Some applications of AC generators include charging batteries in vehicles, powering diesel locomotives, and generating electricity on boats.
A.C GENERATOR
A simple AC generator consists of a rectangular coil that rotates between the poles of a magnet. As the coil rotates, it cuts the magnetic field lines, inducing a current in the coil. The induced current reverses direction each half rotation as the sides of the coil swap positions relative to the magnet poles. Slip rings connected to the coil ends allow the alternating current to be tapped out through carbon brushes to a load.
DC GENERATOR CHARACTERISTICS
This document discusses different types of DC generators, including permanent magnet, separately excited, and self-excited generators. It focuses on self-excited DC generators, which can be series wound, shunt wound, or compound wound. The document provides details on the magnetic or open circuit characteristic curve, which shows the relationship between field current and generated voltage without a load. It also discusses the internal and external characteristic curves when the generator is loaded, accounting for voltage drops due to armature reaction and ohmic losses. Characteristics of series wound and shunt wound generators are covered as well.
dc Generator Ppt
1) DC generators convert mechanical energy to electrical energy through Faraday's law of electromagnetic induction. When a conductor moves through a magnetic field, an EMF is induced in the conductor.
2) The main components of a DC generator are the yoke, field electromagnets, armature, commutator, and brushes. The armature is wound with coils and rotates within the magnetic field produced by the field electromagnets to generate an EMF.
3) As the armature rotates, the commutator and brushes are used to periodically reverse the direction of current in the external circuit, thereby producing direct current. Losses in the generator arise from copper, iron, and mechanical components
DC GENERATORS
A DC generator converts mechanical energy to DC electrical energy using electromagnetic induction. It has two main parts - a rotor that rotates within a stator. As the rotor cuts the magnetic field in the stator, an alternating voltage is induced in the rotor windings. A commutator is used to convert the alternating voltage to direct voltage that can be used to power loads. The characteristics of a DC generator include its open circuit characteristic showing the relationship between generated voltage and field current, and its external characteristic showing the relationship between terminal voltage and load current.
Dc machines ppt
A DC generator converts mechanical energy into electrical energy using electromagnetic induction. It consists of a magnetic frame, field poles, an armature, and a commutator. The armature rotates under the poles, cutting the magnetic flux and inducing an EMF. The commutator converts the alternating EMF into a pulsating DC voltage. DC generators are classified as separately excited, self-excited (series, shunt, compound), depending on how the field is connected. A DC motor operates on the principle that a current-carrying conductor in a magnetic field experiences a torque. It consists of an armature, field poles, a commutator, and brushes. The back EMF opposes the applied voltage
brushless alternator-seminar-ppt 2
This document provides an overview of brushless alternators compared to brushed alternators. It discusses the construction, working principle, losses, and applications of brushless alternators. The key points are:
- Brushless alternators have simplified construction without slip rings or brushes, reducing costs and increasing reliability compared to brushed alternators.
- A brushless alternator contains an exciter alternator and main alternator on the same shaft, with the exciter regulating the output voltage of the main alternator.
- Brushless alternators are now commonly used in automotive and other applications where maintenance-free operation is important.
Recommended
AC GENERATOR.pptx
The document summarizes the key components and working principle of an AC generator. The AC generator converts mechanical energy to electrical energy through electromagnetic induction. It has a field magnet that produces a magnetic field, an armature coil that rotates in this field, slip rings to carry the alternating current produced, and brushes to transfer the current to an external circuit. As the coil rotates, the changing magnetic flux induces an alternating current whose frequency depends on the rotation speed.
Simple ac generator
This document summarizes the components and working of a simple AC generator. It consists of a field magnet that produces a magnetic field, an armature coil that rotates in this field, slip rings to carry the changing current from the rotating coil, and brushes that transfer this current to an external circuit. As the coil rotates, it cuts the magnetic flux which induces an electromotive force based on Faraday's law of induction, causing an alternating current to be generated. Some applications of AC generators include charging batteries in vehicles, powering diesel locomotives, and generating electricity on boats.
A.C GENERATOR
A simple AC generator consists of a rectangular coil that rotates between the poles of a magnet. As the coil rotates, it cuts the magnetic field lines, inducing a current in the coil. The induced current reverses direction each half rotation as the sides of the coil swap positions relative to the magnet poles. Slip rings connected to the coil ends allow the alternating current to be tapped out through carbon brushes to a load.
DC GENERATOR CHARACTERISTICS
This document discusses different types of DC generators, including permanent magnet, separately excited, and self-excited generators. It focuses on self-excited DC generators, which can be series wound, shunt wound, or compound wound. The document provides details on the magnetic or open circuit characteristic curve, which shows the relationship between field current and generated voltage without a load. It also discusses the internal and external characteristic curves when the generator is loaded, accounting for voltage drops due to armature reaction and ohmic losses. Characteristics of series wound and shunt wound generators are covered as well.
dc Generator Ppt
1) DC generators convert mechanical energy to electrical energy through Faraday's law of electromagnetic induction. When a conductor moves through a magnetic field, an EMF is induced in the conductor.
2) The main components of a DC generator are the yoke, field electromagnets, armature, commutator, and brushes. The armature is wound with coils and rotates within the magnetic field produced by the field electromagnets to generate an EMF.
3) As the armature rotates, the commutator and brushes are used to periodically reverse the direction of current in the external circuit, thereby producing direct current. Losses in the generator arise from copper, iron, and mechanical components
DC GENERATORS
A DC generator converts mechanical energy to DC electrical energy using electromagnetic induction. It has two main parts - a rotor that rotates within a stator. As the rotor cuts the magnetic field in the stator, an alternating voltage is induced in the rotor windings. A commutator is used to convert the alternating voltage to direct voltage that can be used to power loads. The characteristics of a DC generator include its open circuit characteristic showing the relationship between generated voltage and field current, and its external characteristic showing the relationship between terminal voltage and load current.
Dc machines ppt
A DC generator converts mechanical energy into electrical energy using electromagnetic induction. It consists of a magnetic frame, field poles, an armature, and a commutator. The armature rotates under the poles, cutting the magnetic flux and inducing an EMF. The commutator converts the alternating EMF into a pulsating DC voltage. DC generators are classified as separately excited, self-excited (series, shunt, compound), depending on how the field is connected. A DC motor operates on the principle that a current-carrying conductor in a magnetic field experiences a torque. It consists of an armature, field poles, a commutator, and brushes. The back EMF opposes the applied voltage
brushless alternator-seminar-ppt 2
This document provides an overview of brushless alternators compared to brushed alternators. It discusses the construction, working principle, losses, and applications of brushless alternators. The key points are:
- Brushless alternators have simplified construction without slip rings or brushes, reducing costs and increasing reliability compared to brushed alternators.
- A brushless alternator contains an exciter alternator and main alternator on the same shaft, with the exciter regulating the output voltage of the main alternator.
- Brushless alternators are now commonly used in automotive and other applications where maintenance-free operation is important.
ac generator
This document discusses the components and operation of an AC generator. It describes the key parts including the field, armature, prime mover, rotor, stator and slip rings. The field and magnetic flux produce voltage in the armature. The rotor is driven by the prime mover and its rotation through the magnetic field induces current in the armature coils. Slip rings allow current to flow in and out of the rotating component. AC generators have advantages over DC generators for applications such as power generation.
Reduction methods of armature reaction in DC machines
Armature reaction is the effect of the magnetic field produced by current in the armature conductors on the main field produced by the generator's poles. This distorts the main field in two ways: by weakening it (demagnetization) and shifting it (cross-magnetization). Several methods are used to reduce the effects of armature reaction, including using laminated pole shoes, compensating windings, and ensuring a strong main field compared to the armature field.
Armature Reaction
This presentation contains animative understanding of Armature reaction,compensating winding and interpoles
Phasor diagram
The document discusses phasor diagrams and equivalent circuits of transformers. It presents phasor diagrams showing the relationship between voltages and currents for transformers under no load, unity power factor load, lagging power factor load, and leading power factor load conditions. It then derives the equivalent circuit models of transformers by representing the transformer components like winding resistances and leakage fluxes as circuit elements. The equivalent circuits are developed with parameters referred to both the primary and secondary sides. Approximate equivalent circuits neglecting the no-load current are also presented.
Braking methods of induction motor
The document discusses various braking methods for induction motors, including regenerative braking, plugging, and different types of dynamic braking. Regenerative braking occurs when the rotor speed exceeds synchronous speed, causing power to flow in the reverse direction. Plugging involves reversing the phase sequence of the supply to change operation from motoring to braking. Dynamic braking disconnects one phase of the supply or connects the motor to a DC supply, causing the motor to act as a generator and dissipate energy as heat.
Ac generator
An AC generator converts mechanical energy to electrical energy by rotating a coil within a magnetic field or rotating the magnetic field around a stationary coil. It produces alternating current unlike a DC generator. The main components of an AC generator are the field, armature, prime mover, rotor, and stator. The rotor is driven by the prime mover and either the rotor or stator contains the field coils. Losses in the AC generator occur due to resistance in the armature windings, hysteresis in the iron cores, and mechanical friction from bearings and windage. The efficiency of an AC generator is the ratio of its output power to input power.
Starting method for 3 phase induction motor
The document discusses four common methods for starting 3-phase induction motors: rotor resistance starting for slip-ring motors, and direct-on-line starting, star-delta starting, and autotransformer starting for squirrel-cage motors. Rotor resistance starting allows adjusting the starting torque and current by adding external resistance to the rotor circuit. Direct-on-line starting applies full supply voltage but results in high starting current and moderate starting torque. Star-delta starting and autotransformer starting both initially apply reduced voltage to lower starting current and torque before switching to full voltage.
Synchronous generator
Synchronous generators operate on the principle of electromagnetic induction. They have a stationary armature winding and a rotating field winding supplied by a direct current source. It is advantageous to have the field winding on the rotor and armature winding on the stator because it allows for easier insulation of the high voltage winding and direct connection to the load. The frequency of the induced voltage depends on the number of rotor poles and its rotational speed. Armature reaction is the effect of the armature magnetic field on the main rotor field, distorting or strengthening it depending on the load power factor.
Transformer Efficiency
The document discusses transformer ratings, efficiency, and power factor. It explains that transformers are rated in kVA rather than kW because manufacturers do not know the load power factor in advance. Maximum efficiency occurs when iron losses equal copper losses. Transformer efficiency is calculated based on output power in watts rather than volt-amperes. Low power factor reduces efficiency by decreasing the output power relative to losses. Correcting power factor can help increase efficiency when a transformer is overloaded.
Speed control of dc motors
This document discusses speed control methods for DC motors. It begins by explaining that DC motors can achieve fine speed control through simple methods, which is their main advantage over AC motors. It then describes the three main speed control methods for DC motors as varying the flux, armature resistance, or applied voltage. Subsequent sections provide more details on speed control for shunt motors and series motors, including flux control, armature control, voltage control, and numerical examples. The document is intended to teach speed control of DC motors through lecture notes.
F:\Ac Generator Ppt
Ac Generator Theory talks about how an AC generator works. It also Explains its theory of operation and its main component
DC GENERATOR
Here are the answers to the questions on DC generator characteristics:
1. The external characteristic gives the relation between terminal voltage and load current.
2. The three most important characteristics or curves of a DC generator are: the no-load saturation characteristic (E0/If), internal or total characteristic (E/Ia), and external characteristic (V/I).
3. Critical speed of a shunt generator means the speed for which the given shunt field resistance represents critical resistance.
4. One condition necessary for the build-up of a self-excited shunt generator is that there must be some residual magnetism in the generator poles.
5. Some other factors which affect the voltage building of
AC generator
This document provides information about AC generators. It begins by defining a generator as a device that converts mechanical energy to electrical energy. It then discusses Faraday's law of electromagnetic induction, which explains how a generator works. The key components of an AC generator are described as the field, armature, and prime mover. The construction and operation of a three-phase synchronous generator is explained, including its stator, rotor, and how speed and frequency relate. Advantages of AC generators include ease of voltage transformation while disadvantages include potential hazards from heat generation.
Alternator
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.
Transformer
Transformers work on the principle of mutual induction to change alternating current voltages from one level to another. They have two coils, a primary and secondary, wound around a ferromagnetic core. When an alternating current flows through the primary coil, it generates a changing magnetic field that induces a voltage in the secondary coil. The ratio of turns between the coils determines the ratio of voltages. Transformers are used widely in power transmission to increase voltages for efficient transfer and then step voltages down for safe distribution and usage. They experience losses from resistance in the coils and hysteresis and eddy currents in the core.
Armature reaction
Armature reaction is the effect of current flowing in the armature windings on the main field flux in a DC machine. It causes two undesirable effects: 1) a reduction in the main field flux per pole, and 2) distortion of the main field flux wave along the air gap. Armature current produces cross-flux that either aids or weakens the main flux depending on its location. This results in a non-uniform flux distribution and a shift in the magnetic neutral axis in the direction of rotation for a generator and against rotation for a motor. It also causes demagnetization due to magnetic saturation, further reducing the main field flux from its no-load value.
Unit 3
This document discusses various methods for measuring electrical quantities like voltage, current and resistance. It begins by describing potentiometers and their use in DC voltage measurements. It then discusses different types of bridges including Wheatstone, Kelvin and Maxwell bridges which are used to measure resistances and impedances. The document also covers topics like electrostatic and electromagnetic interference, grounding techniques and references.
Losses dc machines
1) There are several types of losses that reduce the efficiency of DC machines, including electrical or copper losses, core losses, brush losses, mechanical losses, and stray load losses.
2) Electrical losses include losses from the armature winding resistance, shunt field winding resistance, series field winding resistance, and interpole winding resistance.
3) Core losses are hysteresis and eddy current losses and account for around 20% of full load losses.
4) Brush losses are due to the voltage drop and current at the brush contact with the commutator.
Active, reactive and apparent power
This document defines and compares active power, reactive power, and apparent power in AC circuits. It states that active power is responsible for useful work, is represented by P, and is given by the relation P=VICosθ. Reactive power oscillates between the source and load, does not contribute to useful work, and is represented by Q=VISinθ. Apparent power is represented by S=VI and is equal to the square root of the sum of the squares of active and reactive power.
CAPACITOR START INDUCTION MOTOR
The document summarizes different types of single-phase induction motors. It describes how squirrel cage induction motors work using a stator winding to induce currents in the rotor and how they operate at slightly lower than synchronous speed. It also explains two types of split-phase motors: resistance-start induction-run motors which use winding resistance to generate a starting torque, and capacitor-start induction-run motors which use a capacitor in series with the starting winding to produce a 90 degree phase difference between windings for starting torque.
MALICIOUS SOFTWARE VIRUS WORM TROJAN HORSE ANTI VIRUS
This document discusses different types of malicious software including viruses, worms, Trojan horses, spyware, cookies, and bots. It defines each type and provides examples. Viruses attach to files while worms replicate without human interaction. Trojan horses appear useful but cause damage. The document also discusses antivirus software and techniques for preventing and removing viruses, including using antivirus programs, backing up data, and reinstalling operating systems.
More Related Content
What's hot
ac generator
This document discusses the components and operation of an AC generator. It describes the key parts including the field, armature, prime mover, rotor, stator and slip rings. The field and magnetic flux produce voltage in the armature. The rotor is driven by the prime mover and its rotation through the magnetic field induces current in the armature coils. Slip rings allow current to flow in and out of the rotating component. AC generators have advantages over DC generators for applications such as power generation.
Reduction methods of armature reaction in DC machines
Armature reaction is the effect of the magnetic field produced by current in the armature conductors on the main field produced by the generator's poles. This distorts the main field in two ways: by weakening it (demagnetization) and shifting it (cross-magnetization). Several methods are used to reduce the effects of armature reaction, including using laminated pole shoes, compensating windings, and ensuring a strong main field compared to the armature field.
Armature Reaction
This presentation contains animative understanding of Armature reaction,compensating winding and interpoles
Phasor diagram
The document discusses phasor diagrams and equivalent circuits of transformers. It presents phasor diagrams showing the relationship between voltages and currents for transformers under no load, unity power factor load, lagging power factor load, and leading power factor load conditions. It then derives the equivalent circuit models of transformers by representing the transformer components like winding resistances and leakage fluxes as circuit elements. The equivalent circuits are developed with parameters referred to both the primary and secondary sides. Approximate equivalent circuits neglecting the no-load current are also presented.
Braking methods of induction motor
The document discusses various braking methods for induction motors, including regenerative braking, plugging, and different types of dynamic braking. Regenerative braking occurs when the rotor speed exceeds synchronous speed, causing power to flow in the reverse direction. Plugging involves reversing the phase sequence of the supply to change operation from motoring to braking. Dynamic braking disconnects one phase of the supply or connects the motor to a DC supply, causing the motor to act as a generator and dissipate energy as heat.
Ac generator
An AC generator converts mechanical energy to electrical energy by rotating a coil within a magnetic field or rotating the magnetic field around a stationary coil. It produces alternating current unlike a DC generator. The main components of an AC generator are the field, armature, prime mover, rotor, and stator. The rotor is driven by the prime mover and either the rotor or stator contains the field coils. Losses in the AC generator occur due to resistance in the armature windings, hysteresis in the iron cores, and mechanical friction from bearings and windage. The efficiency of an AC generator is the ratio of its output power to input power.
Starting method for 3 phase induction motor
The document discusses four common methods for starting 3-phase induction motors: rotor resistance starting for slip-ring motors, and direct-on-line starting, star-delta starting, and autotransformer starting for squirrel-cage motors. Rotor resistance starting allows adjusting the starting torque and current by adding external resistance to the rotor circuit. Direct-on-line starting applies full supply voltage but results in high starting current and moderate starting torque. Star-delta starting and autotransformer starting both initially apply reduced voltage to lower starting current and torque before switching to full voltage.
Synchronous generator
Synchronous generators operate on the principle of electromagnetic induction. They have a stationary armature winding and a rotating field winding supplied by a direct current source. It is advantageous to have the field winding on the rotor and armature winding on the stator because it allows for easier insulation of the high voltage winding and direct connection to the load. The frequency of the induced voltage depends on the number of rotor poles and its rotational speed. Armature reaction is the effect of the armature magnetic field on the main rotor field, distorting or strengthening it depending on the load power factor.
Transformer Efficiency
The document discusses transformer ratings, efficiency, and power factor. It explains that transformers are rated in kVA rather than kW because manufacturers do not know the load power factor in advance. Maximum efficiency occurs when iron losses equal copper losses. Transformer efficiency is calculated based on output power in watts rather than volt-amperes. Low power factor reduces efficiency by decreasing the output power relative to losses. Correcting power factor can help increase efficiency when a transformer is overloaded.
Speed control of dc motors
This document discusses speed control methods for DC motors. It begins by explaining that DC motors can achieve fine speed control through simple methods, which is their main advantage over AC motors. It then describes the three main speed control methods for DC motors as varying the flux, armature resistance, or applied voltage. Subsequent sections provide more details on speed control for shunt motors and series motors, including flux control, armature control, voltage control, and numerical examples. The document is intended to teach speed control of DC motors through lecture notes.
F:\Ac Generator Ppt
Ac Generator Theory talks about how an AC generator works. It also Explains its theory of operation and its main component
DC GENERATOR
Here are the answers to the questions on DC generator characteristics:
1. The external characteristic gives the relation between terminal voltage and load current.
2. The three most important characteristics or curves of a DC generator are: the no-load saturation characteristic (E0/If), internal or total characteristic (E/Ia), and external characteristic (V/I).
3. Critical speed of a shunt generator means the speed for which the given shunt field resistance represents critical resistance.
4. One condition necessary for the build-up of a self-excited shunt generator is that there must be some residual magnetism in the generator poles.
5. Some other factors which affect the voltage building of
AC generator
This document provides information about AC generators. It begins by defining a generator as a device that converts mechanical energy to electrical energy. It then discusses Faraday's law of electromagnetic induction, which explains how a generator works. The key components of an AC generator are described as the field, armature, and prime mover. The construction and operation of a three-phase synchronous generator is explained, including its stator, rotor, and how speed and frequency relate. Advantages of AC generators include ease of voltage transformation while disadvantages include potential hazards from heat generation.
Alternator
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.
Transformer
Transformers work on the principle of mutual induction to change alternating current voltages from one level to another. They have two coils, a primary and secondary, wound around a ferromagnetic core. When an alternating current flows through the primary coil, it generates a changing magnetic field that induces a voltage in the secondary coil. The ratio of turns between the coils determines the ratio of voltages. Transformers are used widely in power transmission to increase voltages for efficient transfer and then step voltages down for safe distribution and usage. They experience losses from resistance in the coils and hysteresis and eddy currents in the core.
Armature reaction
Armature reaction is the effect of current flowing in the armature windings on the main field flux in a DC machine. It causes two undesirable effects: 1) a reduction in the main field flux per pole, and 2) distortion of the main field flux wave along the air gap. Armature current produces cross-flux that either aids or weakens the main flux depending on its location. This results in a non-uniform flux distribution and a shift in the magnetic neutral axis in the direction of rotation for a generator and against rotation for a motor. It also causes demagnetization due to magnetic saturation, further reducing the main field flux from its no-load value.
Unit 3
This document discusses various methods for measuring electrical quantities like voltage, current and resistance. It begins by describing potentiometers and their use in DC voltage measurements. It then discusses different types of bridges including Wheatstone, Kelvin and Maxwell bridges which are used to measure resistances and impedances. The document also covers topics like electrostatic and electromagnetic interference, grounding techniques and references.
Losses dc machines
1) There are several types of losses that reduce the efficiency of DC machines, including electrical or copper losses, core losses, brush losses, mechanical losses, and stray load losses.
2) Electrical losses include losses from the armature winding resistance, shunt field winding resistance, series field winding resistance, and interpole winding resistance.
3) Core losses are hysteresis and eddy current losses and account for around 20% of full load losses.
4) Brush losses are due to the voltage drop and current at the brush contact with the commutator.
Active, reactive and apparent power
This document defines and compares active power, reactive power, and apparent power in AC circuits. It states that active power is responsible for useful work, is represented by P, and is given by the relation P=VICosθ. Reactive power oscillates between the source and load, does not contribute to useful work, and is represented by Q=VISinθ. Apparent power is represented by S=VI and is equal to the square root of the sum of the squares of active and reactive power.
CAPACITOR START INDUCTION MOTOR
The document summarizes different types of single-phase induction motors. It describes how squirrel cage induction motors work using a stator winding to induce currents in the rotor and how they operate at slightly lower than synchronous speed. It also explains two types of split-phase motors: resistance-start induction-run motors which use winding resistance to generate a starting torque, and capacitor-start induction-run motors which use a capacitor in series with the starting winding to produce a 90 degree phase difference between windings for starting torque.
What's hot (20)
Reduction methods of armature reaction in DC machines
Reduction methods of armature reaction in DC machines
Viewers also liked
MALICIOUS SOFTWARE VIRUS WORM TROJAN HORSE ANTI VIRUS
This document discusses different types of malicious software including viruses, worms, Trojan horses, spyware, cookies, and bots. It defines each type and provides examples. Viruses attach to files while worms replicate without human interaction. Trojan horses appear useful but cause damage. The document also discusses antivirus software and techniques for preventing and removing viruses, including using antivirus programs, backing up data, and reinstalling operating systems.
How to become a successful actor
The slide shows how to become a successful actor. It defines the stages of acting career. It shows the steps and hardwork required to be a successful actor. It diagramatically depicts how to become a successful actor and to achieve the goals successfully.
El bullying en Ecuador.
El bullying consiste en actos violentos o intimidatorios constantes sobre una persona, y generalmente comienza con burlas que se intensifican hasta derivar en agresiones físicas o verbales, causando daños psicológicos. En Ecuador, estudios muestran que más del 50% de estudiantes han presenciado peleas o han sido molestados, y expertos indican que si bien el acoso siempre existió, ahora se estudia y denuncia más en lugar de ser tolerado.
Correo Electronico.
Los que nos proporcionan la posibilidad de enviar el correo directo o adjuntar archivos directos o comprimidos, que en tanto no pasen de un tamaño especifico que varía en cada plataforma podría mandarse a una o a miles de personas al mismo tiempo.
La Naturaleza.
El documento habla sobre la naturaleza, definida como todo lo creado de forma natural en el planeta como animales, plantas y el clima. Luego enumera consejos para cuidar la naturaleza como no malgastar agua, reciclar, no talar árboles y no contaminar ríos. Finalmente menciona peligros como el cambio climático, la contaminación y la deforestación que enfrenta la naturaleza.
Pobreza en méxico
El documento analiza la situación de pobreza en México. Señala que entre 2014 y 2015, los ingresos promedio de los hogares mexicanos cayeron mientras que la población creció. La economía solo creció un 2.5% en 2014, lo que limitó la lucha contra la pobreza. Más de la mitad de los mexicanos no tienen acceso a la seguridad social y casi una cuarta parte sufren carencias alimenticias. El salario mínimo no es suficiente para comprar una canasta básica de alimentos. El
10 dicas para melhorar a nossa rede wireless
Posicionar o router no centro e afastá-lo de objetos de metal para melhorar o sinal sem fio. Atualizar o firmware, adicionar um repetidor sem fio ou mudar para padrões mais recentes como 802.11n para aumentar a velocidade da rede.
7 Awesomely Techie Jobs
The document describes several tech-related jobs including computer programmer, computer systems administrator, computer support specialist, database administrator, and IT manager. For the computer programmer job, the duties involve developing and customizing computer programs for an ERP system and website. The computer systems administrator job involves providing IT support like installing servers, managing Active Directory, and performing system backups. The computer support specialist job is part-time and involves providing computer and network support to small businesses, installing and troubleshooting hardware and software issues. The database administrator job involves administering Microsoft SQL and MySQL databases, implementing high availability solutions, and developing database standards and procedures. The IT manager job involves providing technical leadership and managing a team of support specialists across multiple campuses.
Instant cash money transfer in ndia
We being lenders are treating you in a very respectable manner. Cashpro are being responsible in lending and help in managing the financial crunch situations that you find yourself in.
Which and when
This document discusses the relative pronouns which, when, and where. It provides examples of how to use each pronoun properly based on whether it refers to a thing, time, or place. Which is used to provide more information about a noun, with or without a comma depending on if the clause is essential to identifying the noun. When is used to relate two events, either instantaneous or with one continuous event. Where refers to a place and can be used with "to" to indicate movement to a location.
Zefiro Office System Lookbook
Changing concepts of workspace have significantly altered the features of modern office furniture systems. Businesses today demand flexible office systems. Furniture that is easy to manage, reconfigure and adapt to the different demands that a particular work area may have. Furthermore given the pace and frequency of change, it is more essential than ever that office systems can be reconfigured or moved at reduced costs preferably without the assistance of qualified technicians.
Zefiro responds to these demands in two significant ways:
▪ The Zefiro desks supporting frame composed of horizontal bars and structural legs connect with simple pins which are pre-fitted at the top of the legs.
▪ A patented, innovative magnet solution allows the work surface to be fitted to the frame with absolute minimal effort.
Assembly and reconfiguration is fast and simple.
Exposición2
El documento resume las etapas de la adultez según el desarrollo evolutivo. Explica que la adultez se divide en dos etapas, la temprana entre los 19 a 45 años cuando las personas deciden su futuro y la intermedia entre 45 a 65 años cuando comienzan cambios físicos y sensoriales. También describe los cambios fisiológicos como la menopausia y la disminución de la producción de hormonas sexuales en esta etapa.
Rodrigo loramúsica(2)
El Colegio Chopinesco ofrece programas de música y artes que buscan fomentar la creatividad y libertad de expresión en los niños. Sus clases de piano, violín, guitarra, percusión, flauta, saxofón, canto, pintura, dibujo, fotografía, escritura, actuación, danza y escultura están disponibles para niños desde los 4 años de edad. El colegio está ubicado en Roble #598 en Veracruz y ofrece mensualidades de $400 que incluyen materiales.
If
This document discusses the use of conditionals and "if" clauses in different contexts:
1) Things that will or may happen in the future using "if" with present or future tense verbs.
2) Unlikely or hypothetical situations using "if" with past tense verbs and modal verbs like "would".
3) Referring to past events or situations using "if" with past perfect tense.
4) Reporting questions using "if" in reported speech. Examples are provided for each context.
1. voorbereiding wintersport en website
Bereid je goed voor op wintersport. Deze informatie gaat je zeker helpen daarmee!
Int509 lec 7-8
The document discusses various types of attacks on mobile networks and devices, including malware, denial of service attacks, overbilling, and signaling attacks on 3G networks. It also outlines different forms of social engineering attacks like vishing and smishing that target mobile users, as well as technical attacks like Bluetooth hacking that can access user data and potentially compromise device functionality. Protecting against these threats involves safeguarding personal information, not responding to unsolicited messages/calls, and being aware of potential vulnerabilities in wireless technologies.
Kelsey Hilton-McCarthy-Project
The document discusses several jobs within the information systems industry, including web developer, business analyst, interface design director, software engineer, security specialist, project manager, and mobile applications developer. For each job, the summary provides the typical salary range, job description, required technical skills, and important soft skills. Overall, the document emphasizes that many information systems roles require strong communication, problem solving, adaptability, and teamwork skills in addition to technical skills.
Hossam Shoheib CV
The candidate is seeking a challenging position in human resources where they can utilize 14 years of experience in various HR roles. They have a bachelor's degree in accountancy and have held several HR supervisor roles with increasing responsibility over the past 14 years. Their experience includes recruitment, payroll, benefits administration, employee relations, and more. They also have skills in communication, analysis, coaching and Microsoft Office applications.
Diapositivas pptxaborto-091108182713-phpapp02
El documento describe los diferentes tipos de aborto, incluyendo el aborto espontáneo, inducido y terapéutico. Explica los métodos de aborto como la aspiración, dilatación y curetaje, y el uso de pastillas abortivas. También detalla los posibles efectos psicológicos y físicos negativos del aborto en la mujer.
Viewers also liked (20)
MALICIOUS SOFTWARE VIRUS WORM TROJAN HORSE ANTI VIRUS
MALICIOUS SOFTWARE VIRUS WORM TROJAN HORSE ANTI VIRUS
Similar to AC GENERATOR,GENERATOR presentation
Ac generator
The document summarizes the working principles of an AC generator. It describes how an AC generator converts mechanical energy into alternating electrical energy using electromagnetic induction. As a coil rotates in a magnetic field, the changing magnetic flux induces an alternating current in the coil. Slip rings and carbon brushes allow the alternating current to flow to an external load. The induced electromotive force and current follow a sinusoidal waveform as the coil rotates, with the current reversing direction each half cycle to produce an alternating current. Modern power plants use large AC generators powered by turbines to produce electricity on a massive scale.
Dc machiness
DC machines can be generators or motors. DC generators convert mechanical energy to DC voltage and current using magnetic induction. They have an armature that rotates inside magnetic fields produced by poles. The armature is connected to a commutator that changes the alternating voltage induced in the armature to pulsating DC voltage. DC motors convert electrical energy to mechanical energy by supplying DC power to an armature within magnetic fields, and are used widely in applications. Major parts include the rotor (armature) and stator (field coils).
Diploma i boee u 3 ac circuit analysis
This document provides information about AC circuit analysis including:
1) AC current periodically reverses direction while DC flows in one direction. AC power is delivered to homes and businesses as a sine wave.
2) A simple generator consists of a coil rotating in a magnetic field, inducing a sinusoidal waveform. One cycle is produced per coil revolution.
3) The frequency of an AC generator output depends on the coil rotation speed and number of magnetic pole pairs. Higher speeds or more pole pairs increases frequency.
DC GENERATORS-BEEE.pptx
DC generators convert mechanical energy to electrical energy using electromagnetic induction. They have a stationary part that produces a magnetic field and a rotating part called the armature. As the armature rotates in the magnetic field, a current is induced based on Faraday's law of induction. The commutator ensures the current flows in one direction to the load. The main parts are the magnetic frame, field coils, armature core and windings, commutator and brushes. The types of DC generators are separately excited, shunt, series and compound wound which differ in how the field and armature windings are connected. They have various applications including battery charging, motor operation, and power distribution.
DC Generators
- The document discusses electric generators, specifically DC generators. It describes the key components of a DC generator including the yoke, pole cores, pole shoes, pole coils, armature core, armature winding, commutator, bearings, and brushes.
- It explains the working principle of a DC generator, including how rotation of the armature in a magnetic field generates an induced electromotive force (emf) via Faraday's law of induction. The commutator is described as collecting the current from the armature coils and delivering DC power to an external load.
- Equations for calculating the generated emf are provided, and different types of DC generator circuits are summarized including separately excited,
Generation of A.C. voltage
1) The document discusses the generation of alternating current using a single-turn alternator with a rotating coil within a magnetic field.
2) As the coil rotates, an alternating voltage is induced based on Faraday's law of electromagnetic induction. The magnitude of the induced voltage depends on the angle of rotation and reaches its maximum when the coil is perpendicular to the magnetic field lines.
3) The instantaneous induced voltage can be expressed as a sinusoidal function of the angle of rotation, with the maximum voltage achieved at 90° of rotation. This generates an alternating current through a load that also follows a sinusoidal pattern.
Incomplete PPT on first topic.pptx [Autosaved] [Autosaved].ppt
The document provides information on rotating electrical machines. It discusses the basic concepts of electromechanical energy conversion that occurs due to changes in flux linkages resulting from mechanical motion. It describes different types of machine windings including armature, field, AC, and distributed windings. The document also covers the generation of a rotating magnetic field in a three-phase system using three coils with currents that are equal in magnitude and phase-displaced by 120 degrees, resulting in a constant magnitude rotating magnetic field. It derives expressions for the induced voltages in coils and discusses factors that affect the induced voltages.
Ecd presentation
An AC generator operates by rotating a coil within a magnetic field, which generates an alternating current. As the coil rotates, the changing magnetic flux induces an electromotive force based on Faraday's law of induction. The direction of the current reverses each half turn as one side of the coil moves between the north and south poles of the magnet. Increasing the magnetic field strength, rotation frequency, number of coil turns, or using a stronger magnet can increase the generated electromotive force.
B tech ee ii_ eee_ u-2_ ac circuit analysis_dipen patel
This document provides an overview of AC circuit analysis and three-phase systems. It discusses:
1. The basics of AC circuits including sinusoidal waveforms, impedance, and Ohm's law for AC circuits.
2. Three-phase systems including how the three voltages are phase-shifted by 120 degrees, derivation of line voltages, and generation of three-phase voltages using a three-phase generator.
3. Different connections for three-phase systems including star, delta, 4-wire and 3-wire systems and the implications of each.
Unit 2.doc
A DC motor converts electrical energy into mechanical energy by using the principle of electromagnetic induction. When a current carrying conductor is placed in a magnetic field, it experiences a force that causes it to rotate. In a DC motor, current is passed through stationary conductors located between poles of a magnetic field. This sets up opposing magnetic fields that produce a torque causing the rotor to rotate within the stator. The direction of current flow determines the direction of rotation. By reversing the current direction, the direction of torque and rotation is also reversed, allowing DC motors to run in both forward and reverse directions.
Alternator
An alternator is an electrical generator that converts mechanical energy to electrical energy. It uses a rotating magnetic field with a stationary armature. The working principle relies on Faraday's law of electromagnetic induction. As the armature rotates within the magnetic field, an alternating current is produced. The main components are the stator with stationary armature windings and the rotor with a rotating magnetic field supplied by a DC current. Armature reaction causes the magnetic field to be distorted by the armature current. Alternators have various applications including in automobiles, power plants, and for providing regenerative braking in induction motors. Induction generators can also be used to convert the rotational energy of windmills into electrical energy.
AC & DC Generators
A Project made for my School in the 10th Grade explaining the differences and working of AC and DC Generators.
Contents:
-Introduction
-Electromagnetic induction
-EMF- Electromotive Force
-Fleming’s Right Hand Rule
-Components of a Generator
*Rotor
*Armature
*Coil
*Stator
*Field electromagnets
*Brushes
-A.C. generators
-Commercial A.C generators
-DC generators
-Principle
-Working
-Differences between AC and DC
Generator ppt 1
The document discusses direct current (DC) machines and their operation. It provides details on:
1) The basic components and construction of a DC machine including its armature winding, commutator, and field poles.
2) How an alternating current induced in the armature coils is converted to direct current via the commutator and brush assembly.
3) Different types of armature windings including lap and wave windings.
4) Factors that affect the performance of DC machines such as armature reaction and how it can be mitigated through techniques like using interpoles.
5) Equations for calculating the generated electromotive force (EMF) in a DC generator.
dc motor.pptx
A current-carrying coil placed in a magnetic field experiences forces due to the interaction between the coil's magnetic field and the external magnetic field. These opposing forces produce a torque or turning effect on the coil. Direct current motors and moving coil meters operate based on this principle, where the coil is made to continuously rotate by reversing the current direction using a commutator. The motor converts electrical energy to mechanical energy through a rotating shaft, while the meter measures current using rotational displacement of the coil.
Electromagnetic induction
1. Electromagnetic induction occurs when a changing magnetic field induces a current in a conductor. This can be generated by moving a magnet near a coil or changing the current in a neighboring circuit.
2. Faraday's law states that an electromotive force (EMF) is induced in a conductor whenever the magnetic flux through the conductor changes. The magnitude of the induced EMF is proportional to the rate of change of flux.
3. Transformers use electromagnetic induction to change the voltage of alternating current. A step-up transformer increases voltage by having fewer turns in the primary coil, while a step-down transformer decreases voltage with more turns in the primary coil.
INDUCTION MOTOR
- DC generators and motors operate using the principle of electromagnetic induction. When a conductor moves through a magnetic field, an electromotive force (emf) is induced in the conductor.
- The basic components of a DC generator are a magnetic field (produced by poles and field windings) and a conductor (armature) that rotates within the magnetic field. This motion induces an emf in the armature.
- A commutator is used to convert the alternating current from the armature into direct current that can be supplied to a load. Brushes make contact with the commutator segments to carry the output current.
electromagnetism Exam coverage.pptx
- Electromagnetic induction is the process of generating current through a wire in a changing magnetic field. When a wire moves perpendicular to a magnetic field, charges in the wire move and create an induced electromotive force (EMF).
- Transformers use electromagnetic induction to increase or decrease alternating current voltages. They have primary and secondary coils wound around an iron core. The ratio of turns determines the ratio of voltages.
- Lenz's law states that the direction of the induced current is such that the magnetic field it creates opposes the original change in magnetic flux that caused it. This induced magnetic field allows transformers, motors, and generators to function.
Unit 3- DC Machines.pdf
This document contains notes from a class on basic electrical and instrumentation engineering. It covers topics like Faraday's law of electromagnetic induction, Lenz's law, three-phase circuits, construction and operation of DC machines including generators and motors. It defines key concepts such as back EMF, torque equation, speed regulation and characteristics of different types of DC motors like shunt, series and compound motors. Methods for controlling speed in DC motors like flux control, armature control and voltage control are also discussed.
Faraday’s Law of Induction.pdf
presentación de los descubrimientos de FARADAY en el siglo XIX, formulación de la ley de la inducción electromagnética
Beie unit-3
This document provides information about basic electrical and instrumentation engineering. It discusses Faraday's law of electromagnetic induction, which states that a changing magnetic field induces an electromotive force (emf) in a conductor. It also discusses Lenz's law, which describes the direction of induced current. The document then covers three-phase circuits, DC machines including their construction and operation principles, and DC motors including their characteristics and speed control methods.
Similar to AC GENERATOR,GENERATOR presentation (20)
Incomplete PPT on first topic.pptx [Autosaved] [Autosaved].ppt
Incomplete PPT on first topic.pptx [Autosaved] [Autosaved].ppt
B tech ee ii_ eee_ u-2_ ac circuit analysis_dipen patel
B tech ee ii_ eee_ u-2_ ac circuit analysis_dipen patel
Recently uploaded
Advanced control scheme of doubly fed induction generator for wind turbine us...
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant
Slides for the 4th Presentation on LLM Fine-Tuning with QLoRA Presented by Anant, featuring DataStax Astra
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
Literature Review Basics and Understanding Reference Management.pptx
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
官方认证美国密歇根州立大学毕业证学位证书原版一模一样
原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
NATURAL DEEP EUTECTIC SOLVENTS AS ANTI-FREEZING AGENT
NATURAL DEEP EUTECTIC SOLVENTS AS ANTI-FREEZING AGENT
哪里办理(csu毕业证书)查尔斯特大学毕业证硕士学历原版一模一样
原版一模一样【微信：741003700 】【(csu毕业证书)查尔斯特大学毕业证硕士学历】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Unit-III-ELECTROCHEMICAL STORAGE DEVICES.ppt
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Comparative analysis between traditional aquaponics and reconstructed aquapon...
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
学校原版美国波士顿大学毕业证学历学位证书原版一模一样
原版一模一样【微信：741003700 】【美国波士顿大学毕业证学历学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
For International shipping and maritime laws all wood must contain the ISPM 15 Stamp. Here is how and why.
Recently uploaded (20)
Advanced control scheme of doubly fed induction generator for wind turbine us...
Advanced control scheme of doubly fed induction generator for wind turbine us...
LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant
LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
Literature Review Basics and Understanding Reference Management.pptx
Literature Review Basics and Understanding Reference Management.pptx
john krisinger-the science and history of the alcoholic beverage.pptx
john krisinger-the science and history of the alcoholic beverage.pptx
NATURAL DEEP EUTECTIC SOLVENTS AS ANTI-FREEZING AGENT
NATURAL DEEP EUTECTIC SOLVENTS AS ANTI-FREEZING AGENT
ML Based Model for NIDS MSc Updated Presentation.v2.pptx
ML Based Model for NIDS MSc Updated Presentation.v2.pptx
Comparative analysis between traditional aquaponics and reconstructed aquapon...
Comparative analysis between traditional aquaponics and reconstructed aquapon...
Manufacturing Process of molasses based distillery ppt.pptx
Manufacturing Process of molasses based distillery ppt.pptx
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
AC GENERATOR,GENERATOR presentation
- 3. The electrical device that converts Mechanical energy in to Electrical energy is called AC Generator. This is originally designed by scientist Nikola Tesla.
- 4. Its work on the basic principle of FARADAY’S LAW OF ELECROMAGNETIC INDUCTION. FARADAY’S LAW:- It stated that an emf is inducedin a coil ,when it is rotated in a uniform magnetic field.the emf induced in a conducting coil is equal to the negative of rate of Change of flux.it is written as. ɛ= -NΔɸ/Δt
- 6. CONSTRUCTION OF AC GENERATOR:- The main component of AC generator are, Armature Magnets Slip rings Carbon brushes Coil Rotator
- 7. Armature:- It is a rectangular coil consist of a large number of turns of insulated copper wire. Magnets:- magnets of two poles(North and South pole) are use to produce magnetic field. Slip rings:- The end of the armature is connected to two hollow rings, which are called slip rings. Carbon brushes:- There are two carbon brushes ,they provide contact With the slip rings.
- 8. The brushes are also use to pass the current from the armature to the external power line through the slip rings. WORKING OF AC-GENERATOR:- When ever there is a change in the orientation of the coil, magnetic flux will also change as a result it induces emf In the coil. That is ɛ=vBL sinɵ Where “v” is velocity. “B” is magnetic field . “L” is the length of coil.
- 9. The mathmatical equation for AC Generator is ɛ=ɛ°sinɵ Where as, ɵ=ὠt So, ɛ=ɛ°sinὠʈ And ɛ°=NὠAB
- 10. Where “ɛ” is the induced emf at any instant of time “ɛ°” is the peak value of the induced emf “N” is the the number of turns of the armature coil. “A” is the area of coil. “B” is the intensity of the magnetic field. “ὠ”is the angular frequency of rotation of coil.
- 12. When the plane of the coil is parallel or(the coil is at the angle 0 degree)to the field the emf induced is zero. When the plane of the coil is perpendicular or(the coil is at an angle 90 degree) to the field the emf induced in the coil is maximum in the positive direction. When the plane of the coil is at the angle 180 degree to the field the emf induced in the coil is again becomes zero. When the plane of the coil is at the angle 270 degree to the field the emf induced in the coil is maximum In a negative direction. When the plane of the coil is at the angle of 360 degree to the field the emf induced is again becomes zero.
- 13. AC CURRENT DEPENDS ON:- The amount of current depends on: the speed at which the conductor experiences a changing magnetic field the number of coils that make up the conductor, and the position of the plane of the conductor with respect to the magnetic field.