KOM-Unit V-clutches
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Clutches are mechanical devices that connect or disconnect a driven shaft from a driving shaft to allow transmission of power between the two at the operator's will. There are different types of frictional clutches including single plate clutches where a single plate transmits torque from the driving shaft to the driven shaft.
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working of induction motor and its types
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The document discusses AC motors, specifically three-phase induction motors. It describes that AC motors convert alternating current into mechanical energy. There are two main types of three-phase induction motors: squirrel cage induction motors and slip ring induction motors. Squirrel cage motors have copper or aluminum bars short circuited in the rotor, while slip ring motors have wound rotor conductors that allow external resistance to be added, controlling starting current. The document explains the working principle of induction motors, which use rotating magnetic fields in the stator to induce currents in the rotor and generate torque.Power System Modeling Presentation
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This document discusses power system modeling and excitation systems for alternators, detailing their function, types, and characteristics. It explains the process of strengthening the magnetic field of alternators through direct current supplied by exciters and compares various excitation systems, including DC and AC types. The conclusion highlights that the choice of excitation system is influenced by factors such as power, size, speed, and maintenance costs.Synchronous Motor - AISSMS Institute Of Information Technology
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The document outlines the construction and working principles of a three-phase synchronous motor, detailing its components such as the stator and rotor. It explains methods for providing rotor excitation and arrangements for making the motor self-start. The content includes discussions on magnetic locking and various starting techniques, such as using damper windings and additional motors.Maintopik1
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1. There are three types of DC motor connections: series, shunt, and compound. DC motors are commonly used in factories due to their high starting torque and ability to operate at various speeds in both directions.
2. There are three main methods to control DC motor speed: field control, armature control, and input voltage control. Field control varies the field resistance to reduce flux and increase speed. Armature control uses a variable resistance in series with the armature to adjust motor speed over a large range.
3. The Ward-Leonard system uses a generator and DC motor coupled together, with an electronic amplifier controlling the generator field current to vary the motor input voltage and thereby the speed. It providesStepper Motor
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The document discusses different types of electric motors, including DC motors and stepper motors. It provides details on:
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- How brushed DC motors and stepper motors work, with stepper motors using external commutation rather than internal commutators.
- Key specifications for DC stepper motors like voltage rating, resistance, speed, and step resolution.
- The construction and wiring of a unipolar stepper motor with center-tapped coils.
- Guidelines for identifying the wires of stepper motors in order to properly connect and control the motor.Brushless excitation
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The document describes a brushless generator system that uses a main exciter and pilot exciter to generate AC power from a rotating wheel. The main exciter rotor is powered by the permanent magnet generator and produces DC power that excites the generator stator to produce AC power at 50 Hz and 15.6 kV. The pilot exciter ensures stable voltage regulation of the main generator output.slide on stepper motor
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The document discusses stepper motors. It begins with an introduction that defines a stepper motor as a device that converts electrical pulses into discrete mechanical movements, with the shaft rotating in steps proportional to the input pulses. It then covers stepper motor operation, types including variable reluctance, permanent magnet and hybrid, advantages, applications in devices like printers and CD drives, and stepping modes like full step and microstepping.Induction motor
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The induction motor operates on the principle of electromagnetic induction. It consists of two main parts - the stator and the rotor. The stator contains windings that generate a rotating magnetic field, acting as the primary. This rotating field induces currents in the rotor windings, which acts as the secondary. The rotor is then pushed to rotate at a slightly lower speed than the rotating field due to "slip."The squirrel-cage induction motor
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The document discusses the three-phase squirrel cage induction motor. It describes the main components as having a stator and rotor. The rotor uses a squirrel cage construction with rotor bars short-cut by rings on both sides. It then classifies squirrel cage induction motors into six classes (A through F) based on their starting torque, starting current, slip, and common applications. Finally, it briefly lists some advantages as being no commutator/brush and low weight/cost, and disadvantages as requiring complicated power control and slower response.How does a 3-phase motor works
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The document outlines the workings and characteristics of three-phase motors, explaining how they operate, the impact of load on stator current, and the consequences of excessive load. It highlights the need for protective measures to prevent damage to the motor systems and contrasts induction motors with transformers regarding magnetizing current and operational mechanics. Additionally, it discusses the differences between star and delta connected motors, particularly in terms of starting current and torque.Clutch
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A clutch transmits rotary motion from one shaft to another. A common manual clutch has three basic units: a driving unit attached to the engine that rotates with it, a driven unit attached to the transmission that rotates it, and an operating unit that engages and disengages the driving and driven members to connect or disconnect the transmission from the engine.induction motor
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The document summarizes the key components and operating principles of an induction motor. It has two main parts: the stator and the rotor. The stator, the stationary part, contains windings that generate a rotating magnetic field. The rotor, the rotating part, is induced to turn by electromagnetic induction from the stator field. There are two main types of rotors: squirrel cage and wound slip ring. The induction motor works by the rotor conductors generating currents from the rotating stator field, causing the rotor to turn at a slightly lower synchronous speed due to slippage.Design of armature for dc motor
Design of armature for dc motordharmesh nakum
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This document discusses different types of armature windings for DC motors, including lap and wave windings. Lap winding is where successive coils overlap each other with the finishing end of one coil connected to the starting end of the next. Wave winding forms a wave pattern with coils connected in series. Lap windings use multiple parallel paths and are used for high current machines, while wave windings use two series circuits and are used for high voltage machines. Examples of winding tables for each type are provided.Dc and stepper motor
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This document provides an introduction to DC motors and stepper motors. It discusses the basic components and workings of brushed DC motors. Stepper motors are described as electric motors without commutators that are controlled externally through a controller firing opposite coils to attract the rotor. Both unipolar and bipolar stepper motor configurations are examined, along with methods for identifying wires and writing control programs.3phase induction motor(sukhpreet)
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This presentation provides an overview of induction motors, including:
1. It discusses the history and invention of induction motors by Tesla and Dobrovolsky.
2. It explains the principle of operation of induction motors, how they generate torque via electromagnetic induction without direct electrical connection to the rotor.
3. It covers the construction of common induction motors, including squirrel cage and slip ring rotors, and describes speed control techniques like PWM.Ultra sonic motor
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This document discusses ultrasonic motors. It begins with an introduction describing how ultrasonic motors were developed and their advantages over traditional motors at small scales. It then covers key topics such as piezoelectricity, poling, basic principles of operation, construction, types including standing wave and traveling wave motors, driver circuits, control techniques, applications, and advantages/disadvantages. In summary, the document provides an overview of ultrasonic motors, how they work using piezoelectric effects, their construction and operating principles, examples of different types, and their applications and benefits.Lucthur
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Star delta starting involves connecting an induction motor in star configuration during startup for lower starting current, then switching to delta configuration once the motor reaches near normal running speed for higher torque. This allows the motor to start smoothly without drawing excessive current. The motor is connected to star using contactor K1 during startup, then switched to delta using contactor K4 once it reaches 80% of full synchronous speed.Induction Motors
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Induction motors work by using a rotating magnetic field in the stator to induce currents in the rotor. This produces a torque on the rotor causing it to rotate slightly slower than the synchronous speed of the magnetic field. The induction motor has no direct electrical connection between the stator and rotor; instead, current is induced in the rotor by electromagnetic induction from the stator's magnetic field. This self-starting property makes induction motors well-suited for many applications.Micro c lab5(stepper-motor)
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The document discusses driving a stepper motor using an 8051 microcontroller. It describes the objectives which are to learn about stepper motors, how to wire one, and interface it with an 8051. It explains that a ULN2003 chip is needed to provide sufficient current from the microcontroller pins to drive the motor. The document outlines how to determine the winding configuration, provides examples of full and half step sequences to rotate the motor clockwise and counterclockwise, and presents the algorithm to implement full stepping. It also discusses step angle and speed control. Braking and multi-quadrant operation of VSI drives,Cycloconverter based indu...
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The document discusses the braking and multi-quadrant operation of VSI drives and cycloconverter-based induction motor drives for variable frequency control. It details the operation of hoists in various quadrants, explaining how torque and speed relate to motor performance in different scenarios. Additionally, it outlines the function, control systems, and applications of variable frequency drives (VFDs) in various industrial settings.3 phase of induction motor 2015 16
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This presentation summarizes an induction motor. It discusses that an induction motor works on the principle of transformer action, with the stator acting as the primary and the rotor acting as the secondary. The presentation describes the main components of the stator including the outer frame, core, and three-phase winding. It also discusses the two main types of rotors: squirrel cage and wound rotor. The operation of the induction motor is explained, noting that a rotating magnetic field in the stator induces current in the rotor to generate torque. Slip is defined as the difference between synchronous and actual rotor speeds.Induction machine
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Induction machines operate on the principle of electromagnetic induction. There are two main types of induction motor rotors: squirrel cage and slipring. The squirrel cage rotor is more common and consists of bars shorted together at the ends. The slipring rotor uses an external resistance that can be adjusted. Induction motors operate slightly slower than synchronous speed due to slip. Slip affects rotor parameters like frequency, voltage, reactance, current and power factor. Torque in an induction motor depends on flux, rotor current, and rotor power factor.polyphase induction motor
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The document summarizes the key aspects of polyphase induction motors, including:
1) Nikola Tesla conceived the induction motor in 1883 and sold the rights to George Westinghouse. Most large industrial motors are polyphase induction motors with multiple stator windings driven by time-shifted sine waves, usually two or three phases.
2) An induction motor has a rotor and stator, with the stator windings connected to a polyphase power source. The rotating magnetic field produced by the stator induces current in the rotor, causing it to turn.
3) The induction motor is simple and reliable compared to DC motors as the rotor has no commutator or brushes. Torque isThree Phase Induction Motor
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A three-phase induction motor operates on alternating current, transferring power from the stator to the rotor through induction, making it efficient and durable for various applications like cranes and pumps. The main types include squirrel cage and slip ring motors, which boast advantages such as simplicity, reliability, high efficiency, and minimal maintenance, while drawbacks involve speed decrease with load and efficiency loss during speed variation. Key components include the stator frame, core, windings, rotor, cooling fan, and bearings.Induction Motor, three phase induction motor
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The document outlines the characteristics and advantages of three-phase induction motors, invented by Nikola Tesla in 1888, highlighting their simple design, high efficiency, and broad industrial applications. It describes the components such as the stator and rotor, and compares different rotor types like squirrel cage and slip ring rotors, noting their respective pros and cons. Additionally, it discusses the principle of operation and torque-slip characteristics, emphasizing the importance of slip in motor function.synchronos machines
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This document outlines and compares two types of synchronous machines - cylindrical rotor type and salient pole rotor type generators. It describes their construction, working principles, types, and applications. The key differences are that cylindrical rotor type generators have a smooth cylindrical rotor, uniform air gap, operate at high speeds of 1000-3000 RPM, and are used in thermal and gas turbine power plants. Salient pole rotor type generators have projecting poles, non-uniform air gap, larger diameter and operate at lower speeds of 100-500 RPM, often driven by engines.MT-II UNIT II TURNING
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This document covers abrasive processes and broaching, detailing grinding wheel specifications, types of grinding (such as cylindrical, surface, and centreless), and the structure and materials of grinding wheels. It explains broaching as a technology for metal removal with specific tool designs, and outlines different types of broaching methods including push, pull, and continuous broaching. The document also discusses various bond types and factors influencing grinding wheel selection, including intended applications and machining conditions.More Related Content
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The document outlines the workings and characteristics of three-phase motors, explaining how they operate, the impact of load on stator current, and the consequences of excessive load. It highlights the need for protective measures to prevent damage to the motor systems and contrasts induction motors with transformers regarding magnetizing current and operational mechanics. Additionally, it discusses the differences between star and delta connected motors, particularly in terms of starting current and torque.Clutch
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A clutch transmits rotary motion from one shaft to another. A common manual clutch has three basic units: a driving unit attached to the engine that rotates with it, a driven unit attached to the transmission that rotates it, and an operating unit that engages and disengages the driving and driven members to connect or disconnect the transmission from the engine.induction motor
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The document summarizes the key components and operating principles of an induction motor. It has two main parts: the stator and the rotor. The stator, the stationary part, contains windings that generate a rotating magnetic field. The rotor, the rotating part, is induced to turn by electromagnetic induction from the stator field. There are two main types of rotors: squirrel cage and wound slip ring. The induction motor works by the rotor conductors generating currents from the rotating stator field, causing the rotor to turn at a slightly lower synchronous speed due to slippage.Design of armature for dc motor
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This document discusses different types of armature windings for DC motors, including lap and wave windings. Lap winding is where successive coils overlap each other with the finishing end of one coil connected to the starting end of the next. Wave winding forms a wave pattern with coils connected in series. Lap windings use multiple parallel paths and are used for high current machines, while wave windings use two series circuits and are used for high voltage machines. Examples of winding tables for each type are provided.Dc and stepper motor
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This document provides an introduction to DC motors and stepper motors. It discusses the basic components and workings of brushed DC motors. Stepper motors are described as electric motors without commutators that are controlled externally through a controller firing opposite coils to attract the rotor. Both unipolar and bipolar stepper motor configurations are examined, along with methods for identifying wires and writing control programs.3phase induction motor(sukhpreet)
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This presentation provides an overview of induction motors, including:
1. It discusses the history and invention of induction motors by Tesla and Dobrovolsky.
2. It explains the principle of operation of induction motors, how they generate torque via electromagnetic induction without direct electrical connection to the rotor.
3. It covers the construction of common induction motors, including squirrel cage and slip ring rotors, and describes speed control techniques like PWM.Ultra sonic motor
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This document discusses ultrasonic motors. It begins with an introduction describing how ultrasonic motors were developed and their advantages over traditional motors at small scales. It then covers key topics such as piezoelectricity, poling, basic principles of operation, construction, types including standing wave and traveling wave motors, driver circuits, control techniques, applications, and advantages/disadvantages. In summary, the document provides an overview of ultrasonic motors, how they work using piezoelectric effects, their construction and operating principles, examples of different types, and their applications and benefits.Lucthur
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Star delta starting involves connecting an induction motor in star configuration during startup for lower starting current, then switching to delta configuration once the motor reaches near normal running speed for higher torque. This allows the motor to start smoothly without drawing excessive current. The motor is connected to star using contactor K1 during startup, then switched to delta using contactor K4 once it reaches 80% of full synchronous speed.Induction Motors
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Induction motors work by using a rotating magnetic field in the stator to induce currents in the rotor. This produces a torque on the rotor causing it to rotate slightly slower than the synchronous speed of the magnetic field. The induction motor has no direct electrical connection between the stator and rotor; instead, current is induced in the rotor by electromagnetic induction from the stator's magnetic field. This self-starting property makes induction motors well-suited for many applications.Micro c lab5(stepper-motor)
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The document discusses driving a stepper motor using an 8051 microcontroller. It describes the objectives which are to learn about stepper motors, how to wire one, and interface it with an 8051. It explains that a ULN2003 chip is needed to provide sufficient current from the microcontroller pins to drive the motor. The document outlines how to determine the winding configuration, provides examples of full and half step sequences to rotate the motor clockwise and counterclockwise, and presents the algorithm to implement full stepping. It also discusses step angle and speed control. Braking and multi-quadrant operation of VSI drives,Cycloconverter based indu...
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This presentation summarizes an induction motor. It discusses that an induction motor works on the principle of transformer action, with the stator acting as the primary and the rotor acting as the secondary. The presentation describes the main components of the stator including the outer frame, core, and three-phase winding. It also discusses the two main types of rotors: squirrel cage and wound rotor. The operation of the induction motor is explained, noting that a rotating magnetic field in the stator induces current in the rotor to generate torque. Slip is defined as the difference between synchronous and actual rotor speeds.Induction machine
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油
Induction machines operate on the principle of electromagnetic induction. There are two main types of induction motor rotors: squirrel cage and slipring. The squirrel cage rotor is more common and consists of bars shorted together at the ends. The slipring rotor uses an external resistance that can be adjusted. Induction motors operate slightly slower than synchronous speed due to slip. Slip affects rotor parameters like frequency, voltage, reactance, current and power factor. Torque in an induction motor depends on flux, rotor current, and rotor power factor.polyphase induction motor
polyphase induction motorMaria Romina Angustia
油
The document summarizes the key aspects of polyphase induction motors, including:
1) Nikola Tesla conceived the induction motor in 1883 and sold the rights to George Westinghouse. Most large industrial motors are polyphase induction motors with multiple stator windings driven by time-shifted sine waves, usually two or three phases.
2) An induction motor has a rotor and stator, with the stator windings connected to a polyphase power source. The rotating magnetic field produced by the stator induces current in the rotor, causing it to turn.
3) The induction motor is simple and reliable compared to DC motors as the rotor has no commutator or brushes. Torque isThree Phase Induction Motor
Three Phase Induction MotorSoumya Singh
油
A three-phase induction motor operates on alternating current, transferring power from the stator to the rotor through induction, making it efficient and durable for various applications like cranes and pumps. The main types include squirrel cage and slip ring motors, which boast advantages such as simplicity, reliability, high efficiency, and minimal maintenance, while drawbacks involve speed decrease with load and efficiency loss during speed variation. Key components include the stator frame, core, windings, rotor, cooling fan, and bearings.Induction Motor, three phase induction motor
Induction Motor, three phase induction motorAniket Raj
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The document outlines the characteristics and advantages of three-phase induction motors, invented by Nikola Tesla in 1888, highlighting their simple design, high efficiency, and broad industrial applications. It describes the components such as the stator and rotor, and compares different rotor types like squirrel cage and slip ring rotors, noting their respective pros and cons. Additionally, it discusses the principle of operation and torque-slip characteristics, emphasizing the importance of slip in motor function.synchronos machines
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This document outlines and compares two types of synchronous machines - cylindrical rotor type and salient pole rotor type generators. It describes their construction, working principles, types, and applications. The key differences are that cylindrical rotor type generators have a smooth cylindrical rotor, uniform air gap, operate at high speeds of 1000-3000 RPM, and are used in thermal and gas turbine power plants. Salient pole rotor type generators have projecting poles, non-uniform air gap, larger diameter and operate at lower speeds of 100-500 RPM, often driven by engines.More from Karthik R (20)
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KOM-Unit V-clutches
- 1. CLUTCHES It is a mechanical device used to connect or disconnect the driven shaft from the driving shaft at the will of the operator while power is transmitted from driving to driven shaft.
- 2. TYPES OF FRICTIONAL CLUTCHES
- 4. TORQUE TRANSMITTED BY SINGLE PLATE CLUTCH
- 6. ASSUMPTIONS