Firstly, i am going to tell you about the structure of squirrel cage induction motor. Marconi 355400 series refers to three phase squirrel cage induction motors with external ventilation of 355mm and 400mm shaft height, voltage from 380v to 690v, 50 hz and 60 hz, and synchronous speed from 750 to 3600 rpm. The construction and functions of various parts in a three phase squirrel cage induction motor is explained visually in this demonstration. 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.
Working principle of 3 phase squirrel cage induction motor. The threephase squirrelcage induction motor can, and many times does, have the same armature stator winding as the threephase synchronous motor. As in the synchronous motor, applying three phase currents to the armature creates a synchronouslyrotating magnetic field. Squirrel cage induction motor the engineering projects. Pdf in the european union, the average load factor of electric motors in both. Squirrel cage rotor three phase induction motor the rotor core is cylindrical and slotted on its periphery. Squirrel cage wound rotor with slip rings the rotating magnetic field the basic idea of an electric motor is to generate two magnetic fields. Squirrel cage three phase induction motors b5c b5h series 355 500 sizes. Data sheet three phase induction motor squirrel cage. Analysis of repairs on threephase squirrelcage induction motors performance article in energy conversion, ieee transaction on 222. The theory of three phase induction squirrel cage motors. Low and high voltage three phase induction motors m line squirrel cage rotor horizontal date.
Resistances, reactances calculated values per phase values p. Advantages of three phase squirrel cage induction motor. Introduction to induction motor the engineering projects. This rotating magnetic field has a speed which is known as the synchronous speed this rotating magnetic field induces the voltage in rotor bars and hence shortcircuit currents start flowing in the rotor bars. Designing of three phase squirrel cage induction motor for. Menzel squirrel cage motors are available in all standard motor cooling and protection types for lowvoltage from 75 kw as. Energy efficient induction motors three phase squirrel. Oct 09, 2016 a 3 phase induction motor has two types based on the rotor construction, named as. The squirrel cage rotor consists of a laminated iron core which is slotted lengthwise around its periphery. The relative motion between this field and the rotation of the rotor induces electric current in the conductive bars.
Energy efficient induction motors three phase squirrel cage. The foundation of a 3 phase squirrel cage induction motor is the rotating magnetic field. Variable voltage variable frequency vf control theory an induction motor compared to a dc motor has some major advantages such as. Jem japan electrical manufacturers tr7 totally enclosed energy saving motors was enacted. Y2 series three phase induction motor i asynchronous motor y2 series three phase asynchronous motor is a kind of totally enclosed fancooled tefc squirrel cage induction motor. A 1phase induction motor is similar to a 3phase squirrel cage induction motor in physical appearance. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Disassembly and assembly of an induction motor weebly. The common parameters in addition to the core losses and ratio of. Pdf squirrel cage induction motor design and the effect of. Marine motors three phase squirrel cage induction motors ma a4 bb b4 b5 series 63 400 sizes. The general construction of the slots in the rotor is such that the rotor bars. You will be using the labvolt trainer model no 8020.
Oct 19, 20 three phase squirrel cage induction motor with inverter section model 0100hz. Construction of three phase squirrel cage induction motor. A wide variety of three phase squirrel cage induction motor options are available to you. The implementation is done using a rectifier and an inverter, where the pwm triggering pulses were generated by using pic micro controller for switching the igbts of the inverter. Torquespeed characteristics of three phase squirrel cage induction motor aim to obtain the torquespeed characteristics tn r of a three phase squirrel cage induction motor using 1. Threephase squirrel cage induction motors flashcards.
Data sheet three phase induction motor squirrel cage customer. Totally enclosed squirrel cage three phase motors with cast. Search wegthreephaseinductionmotorstlinesquirrelcage. Differentiate between the various types of generating electric power stations. The motor was represented as a set of equations in a matrix form to be solved to give stator, rotor currents. Scope regulation eu 42014 covers single speed, three phase, 50 hz and 60 hz induction motors with. Low voltage threephase squirrelcage induction motor.
Nov 27, 2019 the three phase induction motor is the most widely used electrical motor. Squirrel cage rotor three phase induction motor electrical. Totally enclosed squirrel cage three phase motors with. A squirrelcage rotor is the rotating part of the common squirrelcage induction motor.
The three phase induction motor is the most widely used electrical motor. Squirrel cage induction motors menzel elektromotoren. An induction motor is an electrical motor whic does not require external excitation of the rotor. A 3 phase ac induction motor photoed by hordu motor. In 11 it is presented the performance analysis of three phasesquirrel cage induction motor with deep rotor bars in transient behavior.
Menzel 3 phase squirrel cage induction motors are robust, efficient and durable. Marine motors three phase squirrel cage induction motors. Parameter estimation of three phase squirrel cage induction motor. Threephase induction motor squirrel cage rotor customer. There is uniform air gap between stator and rotor but no electrical connection between them. Single phase and three phase are the two types of an ac induction motor. The rotor is same as that employed in 3 phase squirrel cage induction motor. The stator has windings that produce a magnetic field, and windings on the rotor cut this field and induce a current in the rotor windings. Single phase motors are used for smaller loads while 3 phase motors are used in high load applications. Ml three phase squirrel cage im supply of three phase squirrel cage induction motor for uranium corporation of india ltd ucil at, due date.
To measure the inrush current when the motor starts. Search wegthreephaseinductionmotorsusedinexplosive. Motor type j kgm 2 performance at rated outputs power. Pdf novel multiflux level, threephase, squirrelcage induction. According to the type of rotor, an induction motor is divided into two types.
Totally enclosed squirrel cage three phase motors with cast iron frame sizes 71 to 400, 0. In this work a conventional three phase squirrel cage type induction motor with specifications 10 hp, 415v, stardelta connected and 4 poles is chosen for comparison with our motor, which is designed for good efficiency. List and describe the more commonly used equipment in an electric substation. All the stator windings can be divided into three main groups. Summary of changes performed checked date performed by joseconde checked by marcioaf date 03082016 152016 page 11 revision 2. Since 1927, users around the world have been able to rely on highquality 3 phase squirrel cage induction motors made by menzel. Pdf three phase squirrel cage induction motor, conctruction. W22 cast iron frame super premium efficiency ie4 frame. Ip56 w22xd ie2 high efficiency explosao portugal rev. Kanpur, india design of a three phase squirrel cage induction motor for electric propulsion system ravi prakash,mohammad junaidakhtar, r. This paper presents the design of threephase induction motor im for high speed with torque speed curve suitable for vehicle propulsion applications.
When a 3 phase supply is given to the stator winding it sets up a rotating magnetic field in space. Menzel squirrel cage motors are available in all standard motor cooling and protection types for lowvoltage from 75 kw as well as medium and high voltage up to 25000 kw 25 mw. The rotor consists of uninsulated copper or aluminium bars called rotor conductors. Skg 100l 4a s three phase squirrel cage induction motor. Good performance, such as high safety, energy saving, compact design, low noise, little vibration, big breakaway torque, reliable operation, stable running and convenient. Search wegthreephaseinductionmotorsusedinexplosiveatmospheresw60linesquirrelcagerotorhorizontal12868530manualenglish. The motor is represented by a set of differential equations in the dq reference frame. Construction of three phase induction motor electrical4u. Two digital multimeters and fluke power quality meter with banana cables from the. Threephaseinduction motor with squirrel cage rotor date equivalentcircuit diagram 09. Disassembly and assembly of motors three phase induction motor. Former is cheaper and broadly used as it requires less maintenance than later one.
Squirrel cage induction motor and wound rotor induction motor. Mostafa elshahed objectives learn a brief history of the electrical power systems construction. Three phase induction motors used in explosive atmospheres w60 line squirrel cage rotor horizontal date. Fourpole squirrelcage induction motor labvolt series by. It consists of a cylinder of steel laminations, with aluminum or copper conductors embedded in its surface. Ul certified 1250kw squirrel cage three phase induction asynchronous motors the motor with rated speed 1500rpm y56014 type rated power kw rated current a speed rmin efficiency % power factor cos. An anisotropic homogeneous representation for both squirrelcage rotor and stator windings is used. Start studying three phase squirrel cage induction motors. To obtain the load performance characteristics of a three phase squirrel cage induction motor.
Design of a three phase squirrel cage induction motor for electric. They are built to cope with the toughest conditions, and reliably ensure the durable availability of your industrial facilities. In this work a conventional three phase squirrelcage type induction motor with specifications 10 hp, 415v, stardelta connected and 4 poles is chosen for comparison with our motor, which is. In squirrel cage induction motor, there is a 3 phase winding on the stator slots. Start studying threephase squirrel cage induction motors. In this paper, a multiflux level, threephase, squirrelcage induction motor is. A 1 phase induction motor is similar to a 3 phase squirrel cage induction motor in physical appearance. Menzel squirrel cage induction motors are manufactured for various industries and industrial applications of all kinds. Pdf design of a threephase squirrelcage induction motor. As in the synchronous motor, applying threephase currents to the armature creates a synchronouslyrotating magnetic field. A 3 phase induction motor has two types based on the rotor construction, named as. Connections to the machine are made through colorcoded safety banana jacks located on the front panel on the module. The design of y2 series induction motor absorbed the advanced technology of electric motors around the world.
Construction of squirrel cage induction motor explained. Short title and commencement i this order may be called the energy efficient induction motors three phase squirrel cage quality control order, 2017. These windings are either star connected or in delta connected. A 3 phase squirrel cage induction motor is a type of three phase induction motor which functions based on the principle of electromagnetism. Speed control of three phase squirrel cage induction motor. The model 8020 dissectible machines is an electromechanical ems. Load tests on a three phase induction motor and measurement of the inrush current objectives. The new iec 60034301 defines worldwide the following efficiency classes of singlespeed threephase, cage induction motors in the 0,12 kw power range. The motor efficiency class and nominal motor efficiency must be stated on the motor nameplate and given in product documentation and motor catalogues. A squirrel cage rotor is the rotating part of the common squirrel cage induction motor. Skg 100l 4a s threephase squirrelcage induction motor, k flangetype, g g series, 100 shaft height of 100 mm, l frame size marking. Design of three phase induction motor using matlab programming. Percent of rated output % a efficiency % b power factor c slip d current at 400v a 0 10 20 30 40 50 60 70 80 90 100 110 120 40 50.
Motors what we will be working on today is the disassembly and assembly of an a. Third international conference on advances in control and optimization of dynamical systems march 15, 2014. The three phase squirrel cage induction motors are classified into 6 different standard types based on their electrical characteristics. The magnetization current im flowing in the motors equivalent circuit fig. Three phase squirrel cage im supply of three phase tender. Parida department of electrical engineering national institute of technology, silchar,assam, india email. Background the simplest and most widelyused rotor for induction motors is the socalled squirrel cage rotor, from which the squirrel cage induction motor gets its name. Speed control of three phase squirrel cage induction motor using vf method is implemented.
Three phase squirrel cage induction motor with inverter section model 0100hz. A complete lumped equivalent circuit of threephase squirrelcage. However, it is possible to consider a squirrel cage three phase induction motor as an ordinary electrical circuit with va. Torquespeed characteristics of three phase squirrel cage. The machine stator windings are independently connected six jacks, allowing connection in either wye or delta configuration. The rotor is same as that employed in 3phase squirrel cage induction motor.
In operation, the nonrotating stator winding is connected to an alternating current power source. Pdf tthis paper describes the primary results of a research project whose aim is the efficiency improvement in industrial threephase induction. Contents page standards 5 essential and nonessential service 5 classification societies 5 mountings and positions 6 materials 7. Parida department of electrical engineering national institute of technology, silchar. Jun 07, 2016 the construction and functions of various parts in a three phase squirrel cage induction motor is explained visually in this demonstration. Windings are such placed that they are electrically and mechanically 120 o apart from in space. Three phase induction motor squirrel cage rotor customer. List and describe the more commonly used equipment in. This paper presents the results of research conducted to assess the effects of preventive maintenance and repairs on three phase squirrel cage induction motor performance regarding energy efficiency. Design of a three phase squirrel cage induction motor for. Y2 series 3 phase induction motors are characterized with.
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