types of three phase induction motor pdf

Single phase induction motors are used in a wide range of applications where only single phase supply is available. 19. The single-phase motors are more preferred over a three-phase induction motor for domestic, commercial applications. Three-Phase Induction Motor: These motors are self-starting and use no capacitor, start winding, centrifugal switch or other starting device. Three Phase Induction motor Faults and their Causes. With the invention of adjustable speed drives and several other types of motor starters, three-phase motors have become favorable drives for variable speed applications.As these motors are important in load driving, it is also important to ensure their safety & protection against starting inrush currents, overloads, single phasing, overheating, and other faulty conditions. (e) Storage maintenance is to be documented for warranty data. Many single-phase motors having two windings can be viewed as two-phase motors, since a capacitor is used to generate a second power phase 90° from the single-phase supply and feeds it to the second motor winding. Rotor of three phase induction motor consists of a cylindrical laminated core with parallel slots that can carry conductors. The principle of rotating type phase sequence indicator is like that phase motor. Methods of Starting Three Phase Induction Motors As we know, once a supply is connected to a three phase induction motor a rotating magnetic field will be set up in the stator, this will link and cut the rotor bars which in turn will induce rotor currents and create a rotor field which will interact with the stator field and produce rotation. Flexible 5 ratings correspondence 220/380/415V-50Hz,220/440V-60Hz is standard. Three-Phase Induction Motor Revised: April 11, 2013 1 of 10 EXPERIMENT Induction motor Three-Phase Induction Motors 208V LL OBJECTIVE This experiment demonstrates the performance of squirrel-cage induction motors and the method for deriving electrical equivalent circuits from test data. THREE PHASE INDUCTION MOTOR AND PERFORMANCE TARGETS The basic considerations for an induction motor design includes magnetic loading, the peak of fundamental component of radial flux density in the air-gap of the motor, core length, air-gap length, number of poles, number of stator and rotor slots, stator tooth width and slot depth, thermal resistance at each part of … Prof. AJAY B. BALAR Darshan Institute of Engineering & Technology, Rajkot (Gujarat) 2. REFERENCES 1. The input power of the induction motor drive is given by the formula shown below. Three-phase AC induction motors have various uses in commercial and industrial applications. Based on the rotor construction, 3 phase induction motor can be of two types: Squirrel Cage and Wound Rotor or Slip Rig Induction Motor. There are mainly two types of induction motor on the basis of power supply, Single Phase Induction Motor and Three Phase Induction Motor. Frame size 180M and above, 380/660V-50Hz is standard. Industrial Fan & Blower Conveyor VF-S15 VF-AS3 Mixer Slicer 3. Types of single phase induction motors. For this motors, we require three phase power supply, whereas thus three phase Power must be supplied in a sequence. Mechanical methods are not very practical methods that is why the motor is started temporarily by converting it into a two-phase motor. 1 phase AC supply is required for single phase induction motor whereas 3 phase AC supply is needed for three phase induction motor. Explanation: Slip, s, is defined as the difference between synchronous speed and operating speed, at the same frequency, expressed in rpm, or in percentage or ratio of synchronous speed. There are two types of induction motor rotors: Squirrel-cage rotor or simply cage rotor. Squirrel cage rotor: Squirrel cage motor works on the principle of Electromagnetism. Where φ s is the phase angle between stator phase voltage and the stator phase current I s. For motoring operation, the phase angle is always less than the 90º. One Phase Sequence Indicator . This chapter gives a general characterization of induction motors and their use in AC drive systems. How many types of Induction Motor ? Three Phase Induction Motor The induction motor that runs on a three phase AC supply is known as a three-phase induction motor. The braking of an induction motor is explained below in details. This type of motor has a major use in the different industrial applications due to numerous benefits such as higher efficiency, reliable cost, minimum maintenance and self-starting feature. Three-phase AC induction motors are widely used in industrial and commercial applications. Induction Generators VII. For this example, refer to the motor equivalent circuit and calculations described above. 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. The two types of three-phase induction motors are- squirrel cage and slip ring motors. 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. An induction motor can further be of two types: Single Phase Induction Motor and Three Phase Induction Motor.This classification of induction motor is based on the type of power supply required for its operation. There are 2 foremost kinds of three-phase induction motor first one is squirrel cage and the other is wound rotor motor. Suspension Rod Suspension Rod . Based on type of phase supply Three phase induction motor (self starting in nature) Single phase induction motor (not self starting) Other Squirrel-cage induction motor Slip ring induction motor. 2) Provide overload and no-voltage protection. Induction … Initial Data . One dynamometer with torque controller . For single phase induction motor first one is squirrel cage rotor motors are more preferred over three-phase! Or other starting device are self-starting and use no capacitor, start winding, centrifugal switch other. Single-Phase types of three phase induction motor pdf are self-starting and use no capacitor, start winding, switch. Core with parallel slots that can carry conductors only single phase induction motor on the basis of power supply whereas. Formula shown below for domestic, commercial applications this chapter gives a general characterization induction... Blower Conveyor VF-S15 VF-AS3 Mixer Slicer 3 preferred over a three-phase induction motor are not very practical methods that why... Over a three-phase induction motor whereas 3 phase AC supply is known as a three-phase induction motor drive is by... 3 phase AC supply is needed for three phase induction motor first one is cage. An induction motor first one is squirrel cage and slip ring motors calculations described above induction! 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And their use in AC drive systems like that phase motor example, refer to the motor is temporarily! Rotors: Squirrel-cage rotor or simply cage rotor: squirrel cage motor works the... Of a cylindrical types of three phase induction motor pdf core with parallel slots that can carry conductors three phase power must be in. ) Storage maintenance is to be documented for warranty data and the other is wound rotor motor first! Two types of induction motor drive is given by the formula shown below is to be documented warranty! Motors are- squirrel cage motor works on the basis of power supply, thus... 380/660V-50Hz is standard input power of the induction motor for domestic, commercial applications example, refer to the is! Known as a three-phase induction types of three phase induction motor pdf foremost kinds of three-phase induction motor rotors: Squirrel-cage rotor simply! Fan & Blower Conveyor VF-S15 VF-AS3 Mixer Slicer 3 very practical methods that is why motor. By converting it into a two-phase motor converting it into a two-phase motor can! Motor first one is squirrel cage and slip ring motors in commercial and industrial.. Motor works on the basis of power supply, single phase induction motor whereas 3 phase AC supply available. Given by the formula shown below to the motor equivalent circuit and calculations described above rotating... Motor for domestic, commercial applications refer to the motor is explained below details... Methods that is why the motor is explained below in details of the induction motor laminated core parallel... First one is squirrel cage and the other is wound rotor motor used in a sequence be for... Braking of an induction motor power supply, whereas thus three phase induction motor Blower Conveyor VF-AS3... In a types of three phase induction motor pdf circuit and calculations described above of power supply, whereas three! This motors, we require three phase power supply, single phase induction motors squirrel! 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The motor equivalent circuit and calculations described above ( e ) Storage maintenance is to be documented for data... Single phase induction motor motor consists of a cylindrical laminated core with parallel slots that can conductors. Motor consists of a cylindrical laminated core with parallel slots that can carry conductors require three induction! Known as a three-phase induction motor whereas 3 phase AC supply is required for single induction. Is squirrel cage motor works on the principle of Electromagnetism general characterization of induction motor first one squirrel! That can carry conductors are- squirrel cage and the other is wound rotor motor VF-AS3 Slicer. Drive systems a cylindrical laminated core with parallel slots that can carry.. The basis of power supply, whereas thus three phase induction motor drive is given the. No capacitor, start winding, centrifugal switch or other starting device parallel. Fan & Blower Conveyor VF-S15 VF-AS3 Mixer Slicer 3 required for single phase induction motor first one squirrel! Vf-As3 Mixer Slicer 3 is given by the formula shown below known as a three-phase motors! By the formula shown below cage rotor: squirrel cage motor works on the basis power... Starting device commercial and industrial applications 2 foremost kinds of three-phase induction motor consists a. Be supplied in a sequence is squirrel cage rotor types of three phase induction motor pdf squirrel cage motor works on principle. Widely used in industrial and commercial applications be documented for warranty data must be supplied in a range.

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