This field can be viewed as being created by a single equivalent sinusoidal winding which is excited with dc current and which is also rotating. In squirrel cage induction motor, there is a 3 phase winding on the stator slots. To obtain the load performance characteristics of a 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.
A 1 phase induction motor is similar to a 3 phase squirrel cage induction motor in physical appearance. To make it easier for you to choose the right drive for your industrial plant, we have categorized our wide range of asynchronous squirrel cage motors according to their various cooling types. This paper describes a generalized simulation model of the threephase induction motor using the simulink software package of matlab. Pdf on may 26, 2004, claudio bruzzese and others published improved squirrel cage induction motor phase model for accurate rotor fault simulations and parameters identification by f. Three phase squirrel cage induction motor with inverter section model 0100hz.
Data sheet for threephase squirrelcage motor type t3a 100l24 cod. Almost 95% of the induction motors used is of squirrel cage type. Squirrel cage of induction motors simulation via simulink. Construction of three phase squirrel cage induction motor. In simple words, the type of 3 phase induction motor which uses a squirrel cage rotor is called squirrel cage induction motor. The majority of commercial and industrial applications usually involve the use of a three phase squirrel cage induction motor. Nov 27, 2019 the three phase induction motor is the most widely used electrical motor. Pdf improved squirrel cage induction motor phase model for. Windings are such placed that they are electrically and mechanically 120 o apart from in space. Construction of three phase induction motor electrical4u. W21 cast iron frame standard efficiency ie1 catalog number. 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 squirrel cage three 3 phase squirrel cage induction.
In operation, the nonrotating stator winding is connected to an alternating current power source. Three phase induction motor squirrel cage customer. Third international conference on advances in control and optimization of dynamical systems march 15, 2014. The magnetization current im flowing in the motors equivalent circuit fig. The rotor winding terminals are connected to three slip rings which turn with the rotor.
It consists of a cylinder of steel laminations, with aluminum or copper conductors embedded in its surface. Because the squirrel cage winding is not large enough to dissipate the heat of continuous operation, large synchronous machines often have protective relays to detect when the machine has fallen out of synchronization with the supply voltage. Three phase induction motor with squirrel cage rotor date electrical data sheet 09. In this paper, considerations on the simulation of singlespeed, multiconnection or multiflux level, threephase, squirrelcage, induction motors using the. Construction of squirrel cage induction motor explained. Percent of rated output % a efficiency % b power factor c slip d current at 230v a 0 10 20 30 40 50 60 70 80 90 100 110 120 40 50. 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 designed for good efficiency. Threephase squirrel cage induction motors flashcards.
Design of squirrel cage three 3 phase squirrel cage induction motor free download as pdf file. The rotor is same as that employed in 3 phase squirrel cage induction motor. Hp squirrelcage induction motor which you have to parameterize. A wide variety of three phase squirrel cage induction motor options are available to you. Weg threephaseinductionmotors tline squirrel cage rotor12364818manualenglish. Analysis of repairs on threephase squirrelcage induction. Design of a three phase squirrel cage induction motor for. The new iec 60034301 defines worldwide the following efficiency classes of singlespeed three phase, cage induction motors in the 0,12 kw power range. Search wegthreephaseinductionmotorsusedinexplosiveatmospheresw60linesquirrelcagerotorhorizontal12868530manualenglish. The stator winding is assumed to be yconnected with the access to the phase terminals. Motors specification of electric motors marshall wolf automation. There is uniform air gap between stator and rotor but no electrical connection between.
Normally the following documents could be submitted. Motors what we will be working on today is the disassembly and assembly of an a. Disassembly and assembly of motors three phase induction motor. R20407,5b3b5a0tamt mounting position b3 1001 electrical data rated motor power 7. The new iec 60034301 defines worldwide the following efficiency classes of singlespeed threephase, cage induction motors in the 0,12 kw power range. 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. The construction and functions of various parts in a three phase squirrel cage induction motor is explained visually in this demonstration. Pdf improved squirrel cage induction motor phase model. The speed of a threephase squirrel cage induction motor depends on the frequency of the applied voltage and the number of poles. Induction motor totallyenclosed fancooled nema standard epact three phase induction motors sdesign versatility teco totally enclosed fan cooled squirrel cage induction motors are designed, manufactured and tested to meet or exceed the latest nema, ieee, csa and. The model 8020 dissectible machines is an electromechanical ems. Three phase induction motors w60 line squirrel cage rotor horizontal.
Designing of three phase squirrel cage induction motor for. It is desired to install a 3phase cage induction motor restricting the maximum line current drawn from a 400 v 3phase supply to 120 a. Data sheet for threephase squirrelcage motor type t3a 2m4 cod. 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. A induction motor asynchronous motor s squirrel cage rotor a explosion proof.
Windingrotor arrangements for 3 phase induction machine three phase slip ring induction motor. The motor efficiency class and nominal motor efficiency must be stated on the motor nameplate and given in product documentation and motor catalogues. Squirrel cage rotor three phase induction motor electrical. R403,0b3b5a0tamt mounting position b3 1001 electrical data rated motor power 3 kw rated motor speed 1430 min1 50hz 1720 min1 60hz rated motor frequency 50 hz rated motor. The rotor is same as that employed in 3phase squirrel cage induction motor. Differentiate between the various types of generating electric power stations. Threephase induction motors used in explosive atmospheres low and high. List and describe the more commonly used equipment in an electric substation.
A wound rotor or slip ring motor has a 3phase winding, similar to the stator winding. Oct 09, 2016 in simple words, the type of 3 phase induction motor which uses a squirrel cage rotor is called squirrel cage induction motor. Simulation of the three phase induction motor is well. Parida department of electrical engineering national institute of technology, silchar,assam, india email. Three phase induction motors used in explosive atmospheres w60 line squirrel cage rotor horizontal date. And in the previous article on types of electrical motors, we have classified induction motors based on the type of rotor used. Disassembly and assembly of an induction motor weebly. Changes summary performed checked date performed by checked by page revision date 07022020 3 16 this document is exclusive property of weg sa. Reprinting is not allowed without written authorization of weg sa.
The dissipated heat generated in the motor is output to the motor housing and is discharged by the cooling air of the external fan via the cooling fins. Skg 100l 4a s threephase squirrelcage induction motor. Torquespeed characteristics of three phase squirrel cage. The field windings in the stator of an induction motor set up a rotating magnetic field through the rotor. Basically, it is the construction of rotor which makes squirrel cage induction motor different from wound type induction motor. An induction motor is an electrical motor whic does not require external excitation of the rotor. It is called a squirrel cage motor because the rotor inside of it known as a squirrel cage rotor looks like a squirrel cage. There is uniform air gap between stator and rotor but no electrical connection between them. Pdf this article tells detail about three phase squirrel cage induction motor construction, working principle, and calculations, after reading this. Three phase induction motor squirrel cage data sheet. A wide variety of 3 phase squirrel cage induction motor options are available to you. Energy efficient induction motors three phase squirrel. 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.
You will be using the labvolt trainer model no 8020. Threephase induction motors with slip ring rotor in the ic 411 cooling class are also designated as ribcooled motors. To measure the inrush current when the motor starts. Search wegthreephaseinductionmotorstlinesquirrelcage. Whenever possible a squirrel cage threephase motor should. The model is based on twoaxis theory of revolving frame transformation. Two digital multimeters and fluke power quality meter with banana cables from the. Variable voltage variable frequency vf control theory an induction motor compared to a dc motor has some major advantages such as. Simple operation and robust design have made the threephase squirrelcage induction motor with totally enclosed fan. Low and high voltage three phase induction motors m line squirrel cage. Kanpur, india design of a three phase squirrel cage induction motor for electric propulsion system ravi prakash,mohammad junaidakhtar, r. Jun 07, 2016 the construction and functions of various parts in a three phase squirrel cage induction motor is explained visually in this demonstration. Energy efficient induction motors three phase squirrel cage. This motor should be mounted on the motor bench, wherein the motor shaft may be coupled to the dynamometer for taking the measurements.
Operation manual threephase squirrel cage induction. 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. The same basic design is used for both singlephase and threephase motors over a wide range of sizes. Pdf modelling of the threephase induction motor using. The rotor is constructed using a number of single bars shortcircuited by end rings and arranged in a hamsterwheel or squirrel cage configuration. The rotor consists of uninsulated copper or aluminium bars called rotor conductors. Threephase sinusoidal balanced excitation in 3 stator phases produces a sinusoidally distributed field rotating at the excitation frequency. If this manual is lost, an electronic pdf file is available at. Start studying threephase squirrel cage induction motors. A 1phase induction motor is similar to a 3phase squirrel cage induction motor in physical appearance.
Pdf simulating multiconnection, threephase, squirrelcage. Operation manual threephase squirrel cage induction motors. High power asynchronous squirrel cage compact motor. Resistances, reactances calculated values per phase values p. Search wegthreephaseinductionmotorstlinesquirrelcagerotor12364818manualenglish. Induction motor torquespeed characteristics figure 6. Percent of rated output % a efficiency % b power factor c slip d current at 460v a 0 10 20 30 40 50 60 70 80 90 100 110 120 40 50. Three phase induction motors used in explosive atmospheres weg. A wide variety of 3 phase squirrel cage induction motor options are available to. Squirrel cage rotor three phase induction motor the rotor core is cylindrical and slotted on its periphery. 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. Learn vocabulary, terms, and more with flashcards, games, and other study tools. These windings are either star connected or in delta connected. Motor voltage lockedrotor torque pullup torque breakdown torque lockedrotor current.
The rotor is constructed using a number of single bars shortcircuited by end rings and arranged in a. Parameter estimation of three phase squirrel cage induction motor. Three phase squirrel cage induction motors can also be used as generators. Load tests on a three phase induction motor and measurement of the inrush current objectives. Threephase induction motor squirrel cage rotor customer. Mostafa elshahed objectives learn a brief history of the electrical power systems construction. The relative motion between this field and the rotation of the rotor induces electric current in the conductive bars. The majority of commercial and industrial applications usually involve the use of a threephase squirrelcage induction motor. Threephase squirrel cage induction motors in flameproof enclosure type asa frame size 63 315 ct1 2006 page 4 31 revision 3 the explanation of series denomination is as follows.
A squirrelcage rotor is the rotating part of the common squirrelcage induction motor. W22 cast iron frame super premium efficiency ie4 a 508 ab 630 b 406457 bb 621 aa 120 c 216 ba 184 h. W22 cast iron frame super premium efficiency ie4 catalog number. The three phase induction motor is the most widely used electrical motor. The model takes power source and load torque as inputs and gives speed and electromagnetic torque as outputs. Start studying three phase squirrel cage induction motors. This paper presents the results of research conducted to assess the effects of preventive maintenance and repairs on threephase squirrelcage induction motor performance regarding energy efficiency. Three phase induction motors used in explosive atmospheres low and high voltage m line squirrel cage rotor horizontal. The speed of a three phase squirrel cage induction motor depends on the frequency of the applied voltage and the number of poles reversing rotation the direction of rotation of a three phase induction motor can be readily reversed. A 3 phase squirrel cage induction motor is a type of three phase induction motor which functions based on the principle of electromagnetism.
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