A 3 phase, y connected, 460 volt line to line, 25 horsepower, 60 hz, 8 pole induction motor has the following constants, in ohms per phase referred to the stator. Well, every electrical domain engineering students are aware of 3 phase induction motor. A 3 phase induction motor can be used for different applications with various speed and load requirements. 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. A three phase induction motor mainly consists of two parts called as the stator and the rotor. The threephase ac induction motor is a rotating electric machine that is designed to operate on a threephase supply. Download 3 phase induction motor powerpoint presentation download and read online. One of the most important topic for electrical engineers.
Introduction types of electrical machines types of 3 ph induction motor basic principle working principle compnents of induction motor application comparision between 1ph i. An induction motors rotor can be either wound type or squirrelcage type. Three phase induction motors are further divided into two types. Introduction types of electrical machines types of 3ph induction motor basic principle working principle compnents of induction motor application comparision between 1ph i.
Free download induction motor seminar ppt, pdf report. The video highlights details regarding the construction of three phase induction motor. Construction of three phase induction motor electrical4u. Construction of 3 phase induction motor smile and learn. Lamination is necessary since a voltage is induced along the axial length of the steel as well as in the stator conductors. The stator composes of magnetic strips of magnetic iron. Induction motor seminar ppt, pdf report study mafia. The three phase induction motors are simple in construction, rugged, low cost and easy to maintain. They run at a constant speed from noload to the full load. Construction of 3 phase induction motor in hindi 9m 06s. When we connect the primary winding, or the stator to a 3 phase ac source.
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. The stator is the outer most component in the motor which can be seen. These are the main parts you can check full details about all parts of motors here parts of a motor. One single phase wattmeter plus miscellaneous apparatus as needed. Differentiate between the various types of generating electric power stations.
Equivalent circuit of three phase and single phase induction motor. Free energy generator using neodymium magnet activity. The design of y2 series induction motor absorbed the advanced technology of electric motors around the world. Three phase induction motor construction your electrical.
First of all, i am going to discuss about the construction of 3 phase induction motor and then i will throw some light on its working. It may be constructed for single phase, three phase or even poly. A single phase induction motor is inherently not selfstaring can be shown easily. A motor with only armortisseur windings is called an induction motor.
An induction motor is the most modest electrical machine from constructional point of view, in the majority of the cases. The 3phase set of currents, each of equal magnitude and with a phase. Speed torque characteristics of 3 phase induction motor duration. Induction motor works on the principle of induction where electromagnetic field is induced into the rotor when rotating magnetic field of stator cuts the stationary rotor. Jan 15, 2014 the video highlights details regarding the construction of three phase induction motor. Construction, types and principle of operation of 3phase induction motors. Almost 80% of the mechanical power used by industries is provided by three phase induction motors because of its simple and rugged construction, low cost, good operating characteristics, the absence of commutator and good speed regulation. Construction of three phase induction motor my tech info. 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. But the rotor construction differs with respect to the type which is specified above. Nov 27, 2019 an electrical motor is an electromechanical device which converts electrical energy into mechanical energy. An induction motor also known as an asynchronous motor is a commonly used ac electric motor. The stator frame consists of laminations of silicon steel, usually with a thickness of about 0.
Like any electric motor, a 3 phase induction motor has a stator and a rotor. This 3 phase motor is also called as an asynchronous motor. Advantages and disadvantages of 3 phase induction motors. Torque equation of 3 phase induction motor in hindi. Electric motor electric motor construction of induction motors. The most important advantage of an induction motor is that its construction is quite. Feb 15, 2017 construction of 3 phase induction motor smile and learn. Entirely free from vibration and easy for movements. The rotor will constantly be turning to align its magnetic field with that of the stator field. You should also make a dc measurement of stator winding linetoline resistance. An induction motor can therefore be made without electrical connections to the rotor. The laminations are insulated from each other usually by a varnish layer. This final thesis will mostly be dedicated to induction motors but also to synchronous permanent magnet and reluctance motors. Pdf transient analysis of threephase induction machine.
The construction of the stator is similar to the three phase synchronous motor, and the construction of rotor is different for the different machine. Supplying of both main and auxiliary windings enables the single phase machine to be driven as a two phase machine. Three phase induction machines are generally used as motors for many industrial applications and all this is due to its simple construction and other advantages in contrast to other machines. First of all, i am going to discuss about the construction of 3 phase induction motor and. Therefore, these motors are frequently used in industry. Mostafa elshahed objectives learn a brief history of the electrical power systems construction. The video tutorial is essentially a part of the basic electrical and electronics engineering. The stator carries a 3phase winding called stator winding while the rotor carries a shortcircuited winding called rotor winding only the stator winding is fed from the 3phase supply. Electric motor construction of induction motors britannica. By far the most commonly used ac motor is the induction motor. An electrical motor is an electromechanical device which converts electrical energy into mechanical energy. The stator carries a 3 phase winding called stator winding while the rotor carries a shortcircuited winding called rotor winding only the stator winding is fed from the 3 phase supply. These types of motors are known as selfstarting induction motors. Although single phase induction motor is more simple in construction and is cheaper than a 3 phase induction motor of the same frame size, it is less efficient and it operates at lower power factor.
One singlephase wattmeter plus miscellaneous apparatus as needed. A three phase induction motor runs on a three phase ac supply. Kindle file format speed control of three phase induction. For this example, refer to the motor equivalent circuit and calculations described above. The three phase ac induction motor is a rotating electric machine that is designed to operate on a three phase supply. Although single phase induction motor is more simple in construction and is cheaper than a 3phase induction motor of the same frame size, it is less efficient and it operates at lower power factor. In three phase induction motor, the power is transferred from stator to rotor.
We pay for you this proper as capably as easy way to get those all. The principle of operation of this motor is based on the production of a rotating. Y2 series three phase induction motor i asynchronous motor y2 series three phase asynchronous motor is a kind of totally enclosed fancooled tefc squirrelcage induction motor. The three phase induction motor is the most widely used electrical motor. Hindi three phase and single phase induction motors. The major difference between them is that transformer is static in nature i. 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.
Basic construction of 3phase ac induction motors you. In three phase induction motor, the power is transferred from stator to. An induction motor or asynchronous motor is an ac electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. List and describe the more commonly used equipment in an electric substation. Almost 80% of the mechanical power used by industries is provided. In this case, power flows from the mechanical system, to the rotor circuit, then across the air gap to the stator circuit and external electrical system. We provide speed control of three phase induction motor using fpga and numerous books collections from fictions to.
The 3 phase set of currents, each of equal magnitude and with a phase. There are two types of induction motors, one with wound type rotor, also called slipring motor and another one with squirrelcage rotor. Always the stator and rotor is separated with a small air gap ranging from 0. A 3phase, y connected, 460 volt line to line, 25 horsepower, 60 hz, 8 pole induction motor has the following constants, in ohms per phase referred to the stator. A singlephase motor is a rotating machine that has both main and auxiliary windings and a squirrelcage rotor. Generally, it is known as the asynchronous motor because its running speed is less than its synchronous speed. Supplying of both main and auxiliary windings enables the singlephase machine to be driven as a twophase machine. Construction of three phase induction motor consist of 2 important parts namely stator and rotor.
The stator is the stationary part of the induction motor, and the rotor is the rotating part. The 3 phase induction motor has two main components, such as any other motor. The basic idea of an electric motor is to generate two magnetic fields. Download 3 phase induction motor powerpoint presentation.
Like any electric motor, a 3phase induction motor has a stator and a rotor. Y2 series 3phase induction motors are characterized with. Three phase induction motor using fpga as a consequence it is not directly done, you could undertake even more approximately this life, approaching the world. Squirrel cage induction motor and wound rotor induction motor based on the construction of rotor. Threephase induction machines are generally used as motors for many industrial applications and all this is due to its simple construction and other advantages in contrast to other machines. Record all nameplate information for the induction motor. Introduction induction motors are employed in textile mills, agriculture and almost all the manufacturing industries to drive the loads because of its rugged construction and ease operation. A 3 phase induction motor has two main parts i stator and ii rotor. We also discuss the construction of a three phase motor including its. An induction motor s rotor can be either wound type or squirrelcage type. The construction of the stator is similar to the threephase synchronous motor, and the construction of rotor is different for the different machine. Construction of squirrel cage induction motor explained. Oct 05, 2016 three phase induction motors are further divided into two types.
Induction motor basics, single phase and three phase. A single phase motor is a rotating machine that has both main and auxiliary windings and a squirrelcage rotor. A simple explanation of how a 3 phase induction motor works. In the case of three phase ac alternating current operation, the most widely used motor is a 3 phase induction motor, as this type of motor does not require an additional starting device. Applications of single phase induction motor these are used in low power. Y2 series 3 phase induction motors are characterized with. The rotor is separated from the stator by a small airgap which ranges from 0.
245 1227 849 1036 3 32 379 1295 1073 1361 1157 216 737 1523 354 1122 974 1037 1624 1317 943 1508 613 734 542 390 1414 1073 1310 692 1069 712 1230 362 561 319 1252 698 749 1267 233 1217 673 1493 1319 351 1477