Powerpoint has annotated answers to the worksheet questions. An induction motor also known as an asynchronous motor is a commonly used ac electric motor. Perform an analysis on induction machines which is the most rugged and the most. Electric motors for machines and mechanisms mits fab lab. Squirrel cage wound rotor with slip rings the rotating magnetic field. In this type of three phase induction motor the rotor is wound for the same number of poles as that of stator but it has less. Mostafa elshahed objectives learn a brief history of the electrical power systems construction. Motors ppt free download as powerpoint presentation. Ppt of srm free download as powerpoint presentation. In the insert object box, select create from file, and then enter the pdf file location.
Introduction to stepper motors slide 1 introduction to stepper motors part 1. Dc servo motors require rectifier brush inspections and maintenance. Duty cycles are measured in the same way for both types of motor. The stator is a permanent magnet, so the motor is smaller in size. Lets now observe 12 basic motor types used for different industrial electric.
The quality of the pdf file is reduced with this method, but you can open the full pdf file by doubleclicking the image when viewing or editing in normal view. An electric motor is an electromechanical device that converts electrical energy into mechanical energy. May 11, 2017 electric motors presentation on types and classification 1. Apart from basic types of motors, several different types of motors have been developed with special features such as stepper motor, linear induction motor lim and others, designed according to the needs of the industry. We have provided ultrasonic motor seminar and ppt with pdf report. A stepper motor is an electric motor that rotates in discrete step increments. Dec 17, 2015 there are many different types of ac motors, and the most common ones are mentioned below.
Dc motor a dc motor or direct current motor converts electrical energy into mechanical energy. This page will provide you with a quick way to compare motor types. The brush dc motor is driven by directly applying a voltage to the motor leads. Introduction to stepper motors microchip technology.
Review different pump types commonly used understand the difference between centrifugal pumps and positive displacement pumps understand the working principle of the tuthill. Dc and brushless motors have similar curveslow speed and high torquebut brushless motors dramatically exceed the torque levels of all. The types of ac motors mainly include synchronous, asynchronous, induction motor. This can either be magnetized, as shown here, or nonmagnetized depending on the type of motor you select.
Induction motor 1 chapter 3 induction motor bee23 electrical machine power system 2 learning outcomes. Induction motor the induction motor is the motor most commonly used in agriculture. Electric motor is a machine which converts electric energy into mechanical energy. An introduction to stepper motors xinda hu university of arizona college of optical sciences introduction.
In most cases, the considerations can be extended to the other types. Rotate pump impeller, fan, blower drive compressors lift materials motors in industry. Principle of dc motors in any electric motor, operation is. Types of single phase induction motors electronics hub. List and describe the more commonly used equipment in an electric substation. The presentation will describe the basics of the threephase. In this type of motor, both the fields like series and shunt are present. Comparison of three types of motor 1 the speed regulation in shunt motor is better than series motor 2 the starting torque of a series motor is more than other motor 3 both shunt and compound motors have definite no load speed, however series motors have dangerously high speed at no load. A useful introduction to electric motors electrical. By far the most commonly used ac motor is the induction motor. Beginners electrical design course is an introduction only for beginners to know general basic information about motors and pumps as a type of power loads. Velocity is measured in revmin for the rotary and msec ftsec for linear motors. Different types of electric motors and their applications elprocus. The rotor and stator are each connected from a different power supply, this gives another degree of freedom for controlling the motor over the shunt.
In an induction motor, the electric current in the rotor needed to produce torque is obtained via electromagnetic induction from the rotating magnetic field of the stator winding. These types of motors have different outer cage arrangements, depending upon the usage or any special industrial requirement. Essential information on motor nameplate website 28. Sm synchronous series ac servo motors, 1m induction series ac servo motors, and dc servo motors.
Electric motors an introductory guide to electric motors for chemical engineers 2. It is true that single phase motors are less efficient substitute for 3phase motors but 3phase power is normally. Free download induction motor seminar ppt, pdf report. This article discusses an overview of types of electric motors which include dc motors, ac motors, and special purpose motors. Types, losses in induction motors, motor efficiency, factors affecting motor performance, rewinding and motor replacement issues, energy. To determine this we must apply the relationship p v i. The rotor is the rotating part of the motor, whereas the stator works as the stationary part. Ac motors hold a fairly consistent speed over a range of torque. In all singlephase induction motors, the rotor is the squirrel cage type. Electromechanical device that converts electrical energy to mechanical energy. Compare motor types choosing the best motor or gearbox selection to fit your application can be an overwhelming experience for those less familiar with fractional horsepower electric motors. Electric motors objectives after studying this unit, the student will be able to state the purpose of an electric motor. An induced current occurs in the rotor conductors and is caused by the interaction between the rotor and the magnetic field rotating around the stator.
Dc servo motors cannot be used in applications requiring clean environments as they types of servo motors there are three types of servo motors in general. Electrical motors ppt electric motor engines free 30. Different types of electric actuators and its applications. Types of dc motors dc motor are of 3 types they are dc shunt motor 2. Nonmagnetized the rotor is the actual rotating component on the motor. For motors used in gas and oil terminals, the casing must be of intrinsically safe, thus it may either have a enclosed casing or a pipe ventilated arrangement such that the sparks produced inside. Electric motors presentation on types and classification. General principle conversion of electrical power into mechanical power takes place in the rotating part of an electric motor i.
Thank you for downloading introduction to stepper motors. Ng motor wheel 280 rads18 rads 16 check torque and propulsion force. The resistance of shunt field winding rsh is always higher than that is armature winding. Classification of electric motors electrical knowhow. Introduction to stepper motors slide 7 main components n s zconsists of.
These are the most common type of ac motor and important in industry due to their load capacity with singlephase induction motors being used. This is one of the most widely used types of single phase induction motors. This motor handbook was created by infineon technologies ag together with. An induction motor can be defined as the ac electric motor device in which a power source fed by the alternating current with the help of a primary winding. First, one is separately excited dc motor and selfexcited dc motor. In a rotary motor, torque is measured in nm lbft and for the linear motors force in n lb. Massachusetts institute of technology department of electrical engineering and computer science 6. The movement of each step is precise and repeatable. In this video we have explained different types of dc motor and their. Differentiate between the various types of generating electric power stations. Dec 19, 2015 single phase induction motors are used in a wide range of applications where only single phase supply is available. Types of motors the different types of motors possess different operating characteristics. Ultrasonic motors are characterized by the absence of dissonance during operation, high torque weight ratio, highly exact speed and location control etc. Sep 15, 2019 an electric motor is an electromechanical device that converts electrical energy into mechanical energy.
To stop extreme current draw, electric actuator motors are generally set with a thermal overload sensor fixed in the motor windings. Induction motors, also known as asynchronous motors, rely solely on ac as a power source. What is common to all the members of this family is that the basic physical process involved in their operation is the conversion of electromagnetic energy. Power levels for icdriven stepper motors typically range from below a watt for very small motors up to 10 20 watts for larger motors. Motor types three types of motors are used in agriculture.
Types of ac motors classification and uses of alternating. There are two main parts of an induction motor named as the rotor and the stator. Squirrel cage induction motor is used in lathes, drilling machine, fan, blower printing machines etc. Oct 28, 2015 types of dc servo motors include series motors, shunt control motor, split series motor, and permanent magnet shunt motor. Types, losses in induction motors, motor efficiency, factors affecting motor performance, rewinding and motor replacement issues, energy saving opportunities with energy efficient motors. Subhajit bose03 shuvankar das02 binoy mourya09 sushobhan sarkar06 prosenjit debnath35 3. Looking at the various motor types, we see that a linear motor directly converts electrical. The speed of rotation of an induction motor is fairly constant, but it does vary somewhat with loading. The selection of these motors can be done based on the operation and voltage and applications. Understand the principle and the nature of single phase and 3 phase induction machines. These are manufactured in fractional kilowatt range to meet the requirements of various applications such as ceiling fans, food mixers, refrigerators, vacuum cleaners, portable drills, hair driers, etc. This is the simplest arrangement to set up a rotating magnetic field by providing two winding on the same stator core as shown in figure.
Dc shunt motor armature the parallel combination of two windings is connected across a common dc power supply. Singlephase twophase threephase the presentation will describe the basics of the threephase brushless motor because it is the most common version. At the end of the lecture, student should be able to. Jul 11, 2019 a dc motor direct current motor has a lot of applications in todays field of engineering and technology. From electric shavers to automobiles dc motors are everywhere.
Draw large starting currents, typically 68 x their full load values. As the name suggests, this type of motor has only one stator winding main winding and operates with a singlephase power supply. Brushless motors overview there are different types of brushless motors. The selfexcited motors are further classified as shunt wound or shunt motor, series wound or series motor and compound wound or compound motor. The rotor and stator windings are connected in parallel. Jun 23, 2015 ultrasonic motor seminar and ppt with pdf report. Types of dc motors dc motor are of 3 types they are 1. Pdf comparative study of using different electric motors in. A good material for the poles of a pmdc motor should have the apposite of the above. Induction motor seminar ppt, pdf report study mafia. Different types of electric motors and their applications. The working of the synchronous motor mainly depends on the 3phase supply.
Aug 11, 2018 there of many types of dc motors, each types has a special property which decide its compatibility for different application. There are two types of induction motors, one with wound type rotor, also called slipring motor and another one with squirrelcage rotor. Generally, dc compound motor is a hybrid component of dc series and shunt motors. There are a variety of types of electric motors are available in the market. Singlephase induction motors i splitphase type ii capacitor start type iii capacitor start capacitor run type v shadedpole type 2. Basically, an electric actuator is one kind of gear motor which can be of various voltages and is the main torque producing component.
Among the four basic classification of motors mentioned above the dc motor as the name suggests, is the only one that is driven by direct current. Types of dc motors separately excited motor shunt excited motor series excited motor compound excited motor permanent magnet pm motor. Rotates a number of degrees with each electric pulse. Comparative study of using different electric motors in the electric vehicles. A direct current dc motor is a fairly simple electric motor that uses electricity and a magnetic field to produce torque, which turns the rotor and hence give mechanical work. Types of dc motors and their applications electrical4u. This final thesis will mostly be dedicated to induction motors but also to synchronous permanent magnet and reluctance motors.
Its action is based on the principle that when a currentcarrying conductor is placed in a magnetic field, it experiences a mechanical force whose direction is give. Motor speed relationship the synchronous speed of an ac motor is the speed of the rotating magnetic field set up by the stator winding synchronous speed rpm 120 x frequency divided by the number of poles. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Ppt basics of a electric motor powerpoint presentation. Basically, there are three types of electric motors, ac motors like synchronous and asynchronous motors, dc motors like brushed and brushless and special purpose motors.
Therefore such motors are known as induction motors. What is the working principle of an electric motor. There are different types of motors developed for different purposes. The rotor of an induction motor can be a squirrel cage rotor or wound type rotor. Insert pdf file content into a powerpoint presentation. The maximum power dissipation level or thermal limits of the motor are seldom clearly stated in the motor manufacturers data. Electric motor flemings fleming flemings left hand rule magnetism motion lorentz commutator force magnetic field. The essential parts of the split phase motor include main winding, auxiliary winding and a centrifugal switch. It is therefore used in starter motors of cars and elevator motors p. An electrical motor is a device that has brought about one of the biggest advancements in the fields of engineering and technology ever since the invention.
A dc servo motor is an assembly of four major components, namely a dc motor, a position sensing device, a gear assembly, and a control circuit. Generally, it is known as the asynchronous motor because its running speed is less than its synchronous speed. Types of stepper motors hello, my name is marc mccomb, i am a technical training engineer here at microchip technology in the security, microcontroller and technology division. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects.
As we know, an electric motor plays a vital role in every sector of the industry, and also in a wide range of applications. We will now discuss in detail the various different. Single phase induction motor double revolving field theory the threephase induction motor starting torque inversely depends on the slip this implies that a small positive slip 0. To cater to this wide range of applications different types of dc motors are used depending on the applicaition.
Its the most primitive version of the electric motor where rotating torque is produced due to flow of current through the conductor inside a magnetic field. Types of dc motor a direct current motor, dc is named according to the connection of the field winding with the armature. Electrical motors ppt free download as powerpoint presentation. The stator in the electric motor generates the field current which rotates in a stable speed based on the ac frequency.
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