Advantages of 3 phase induction motor generally easy to build and cheaper than corresponding dc or synchronous motors induction motor is robust. Dc motors although ac motors are used in most of the cases, dc motors have many applications and used for multipurpose applications. Explore the universal current sensor with free download of seminar report and ppt in pdf and doc format. This thesis presents a method of modelling a universal motor in a nonlinear way based on a linear model and. The working principle of universal motors is explained in this video with the help of animation. Choosing a motor there are numerous ways to design a motor, thus there are many different types of motors. It is a commutated serieswound motor where the stators field coils are connected in series with the rotor windings through a commutator. Types of electric motors electric motors dc motors other motors h ac motors s unt motor separately excited induction motor stepper motor motor brushlessdc motor series motor hysteresis motor permanent magnet dc pmdc synchronous motor reluctance motor compounded motor universal motor. Unit 16 electric motors objectives after studying this unit, the student will be able to state the purpose of an electric motor. By downloading abstract templates for powerpoint you have the chance to access some of our free awesome powerpoint. Presentation on ieee topic, speed control of dc motor using triac. Since here we are talking about maintenance of induction motor, and it is of two types. For a rotary electric motor to work, there must be two magnetic fields, one associated with the stator and the other with the rotor.
This paper contains the description about the design, construction and implementation of the speed control circuit for induction motor. The adobe flash plugin is needed to view this content. An indepth troubleshooting guide to help you with your ac electric motor issues. More important is the fact that a stepper motor can actually be used without any type of feedback loop.
My original aim was to bridge the gap between specialist textbooks which are pitched at a level too academic for the average user and the more prosaic handbooks, which are full of useful detail but provide. This doesnt mean you wouldnt use a feedback loop in some applications. Large motors have an output of 3 kw kilowatt or more and are normally three. The universal current sensor seminar report, ppt, pdf. This is why a proper schedule maintenance schedule is necessary.
Ppt basics of a electric motor powerpoint presentation. Powerpoint slide on introduction to motors compiled by yashaswini pallet. Basics of a electric motor is the property of its rightful owner. Since the motor moves in distinct steps as defined by a step angle, we need only count the number of steps to position the motor accordingly. Download udc and convert to pdf, jpg, tiff from word, excel and any software that can print. Universal motor construction, working and characteristics. Specialpurpose electric machines the machines introduced in this lecture are used in many applications requiring fractional horsepower, or the ability to accurately control position, velocity or torque. They include brushless dc motors stepping motors single phase motors the universal motors singlephase induction motors. Groschopp universal motors are custom built to fit your application so no additional options are available to narrow the search. It is true that single phase motors are less efficient substitute for 3phase motors. Its operation is based on the principle that when a current carrying conductor is placed in a.
Seriesconnected rotor and stator are connected in series operates on either ac or dc nema ratings 0. Download free abstract powerpoint templates from this site, including vectorized powerpoint backgrounds, circles, special effects and cubes. In a traditional electric motor, the rotor rotating part spins inside the stator static part in a linear motor, the stator is unwrapped and laid out flat and the rotor moves. Identify the armature, the main series, and the compensating windings and their terminals. As previously, we have covered a lot of important topics. Thus, it might be expected that a dc series motor would operate on alternating current also.
The threephase induction motor is the extensively used for various kinds of industrial drives. That is why, universal motors generally comes built. Unit 16 electric motors washington state university. Electric motors and generators physics animations and. When you drive such a motor with ac, the current in the coil. A universal motor is a singlephase series motor, which is able to run on either alternating current ac or direct current dc and the characteristics are similar for both ac and dc. Schematics and operation of different types of motor. Kerja tepat di powerpoint untuk menarik dan melepas gambar anda ke dalam template slide.
A universal motor is defined as a motor which can be operated on both a. So the main idea behind motor maintenance is to prevent breakdown rather than repairs them. Ac motors since ac motors rely on a constant frequency supply, they are mainly used on larger aircraft. A case study the simulation results of a vector control system with induction motor based. That is why, universal motors generally comes built into the device they are meant to. Introduction in this lecture we consider various forms of rotating electrical machines these.
Mechanical energy what is an electric motor an electric motor is a device converting electrical energy into mechanical energy usually a torque. These motors are generally series wound armature and field winding are in series, and hence produce high starting torque see characteristics of dc motors here. Introduction to stepper motors microchip technology. Dc motors are widely used in industry because of its low cost, less complex control structure and wide range of speed and torque. Ppt basics of a electric motor powerpoint presentation free to download id. 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 to mechanical energy, and vice versa. A universal motor has a high starting torque and variable speed characteristics. The field windings of a series motors are connected in series with the armature windings. What is the difference between ac series motor and. Objectives when you have completed this chapter, you will be able to do the following.
Ac series motors are also known as the modified dc series motor as their construction is very similar to that of the dc series motor. Speed control methods of various types of speed control. Large motors have an output of 3 kw kilowatt or more and are normally three phase machines. How fast you want the object to move, the weight, size of the object to be. That is why, universal motors generally comes built into the device they are meant to drive. This conversion is usually obtained through the generation of a magnetic field by means of a current flowing into one or more coils. Ac induction motor speed control so what can we do to control the speed of an ac induction motor. Singlephase series motor universal the singlephase series motor is a commutatortype motor. A universal motor is a special type of motor which is designed to run either on dc or single phase ac supply. Introduction to motors worcester polytechnic institute. Universal motor construction, working and application. Electric motors and generators introduction a simple ac generator a simple dc generator dc generators or dynamos ac generators or alternators dc motors ac motors universal motors electrical machines a summary chapter 23 introduction.
This video will describe the working principle and applications of universal motor, with detail construction and features of universal motor. Universal motor the motors which can be used with a single phase ac source as well as a dc source of supply and voltages are called as universal motor. At least one of these fields must be moving so the rotors magnetic field constantly pursues. With the the increasing use of power semicondutor units, the speed control of dc motor is increasingly getting sophisticated and precise. Ini ppt template dengan gaya modern supermudah untuk menggunakan.
Similarly in this post, we will made a powerpoint file accessible for all. Today we are going to made available a powerpoint presentation file for all. These motors are generally series wound armature and field winding are in series, and hence produce high starting torque. Universal motors are so named because they can run both on ac as well as dc. This is a resource page from physclips, a multilevel multimedia introduction to physics download the animations on this page. Memilih antara lebih dari 58 desain slide yang berbeda. Linear motors are electric induction motors that produce motion in a straight line rather than rotational motion. Ppt universal motor powerpoint presentation, free download id. Download free powerpoint themes and powerpoint backgrounds for your presentations. These are a lot comparative to those of dc series motors but the series motor develops less torque when working from an ac supply than when working from an equivalent dc supply. A serieswound motor is referred to as a universal motor when it has been designed to operate on either ac or dc power it can operate well on ac because the.
Hal ini juga didasarkan pada sistem font, sehingga tidak perlu untuk men download font tambahan. If the polarity of the line terminals of a dc series motor is reversed, the motor will continue to run in the same direction. A universal motor is a special type of motor which is designed to run on either dc or single phase ac supply. Chapter 11 drive lines, differentials, drive axles, and. In addition, the ac motor product line up includes models that are equipped with clutch brakes, a poweroff electromagnetic brake, and other options. The project pwm fed speed control of induction motor using pc is implemented successfully by using 16f877a pic microcontroller.
Ac induction motors are also the most common motors used in main powered home appliances. Abstract background for powerpoint makes you possible to create amazing powerpoint presentations to impress your audience. Introduction a universal motor is a special type of motor which is designed to run on either dc or single phase ac supply. The universal motor is a type of electric motor that can operate on either ac or dc power and uses an electromagnet as its stator to create its magnetic field.
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