EEE-II Year- II Sem Electrical Machines-2 Lecture Notes
Electrical Machines -2 Unit 1: Polyphase Induction Motors Page 2 Malla Reddy College of Engineering and Technology (MRCET) Department of EEE (2022-23) Introduction: The induction machine is an important class of electric machines which finds wide application as a motor in industry and in its single-phase form in several domestic applications.
ELECTRICAL MACHINES-II
2. Introduction to Induction machines Gain knowledge 3. Constructional details of cage rotor Explain 4. Constructional details of wound rotor machines Know 5. 2 Difference between cage and wound rotor machines Distinguish 6. Production of a rotating magnetic field Understand 7. Principle of operation Explain 8.
Synchronous motor
Synchronous motor and induction motor are the most widely used types of AC motor. Construction of a synchronous motor is similar to an alternator (AC generator).A same synchronous machine can be used as a …
EXPERIMENT:01 Aim: Constructional study of DC Machine …
Introduction: A D.C. machine is a device that converts Mechanical energy into. Electrical energy and vice-versa. When the device acts as a generator, the mechanical energy is converted into electrical energy. On the other. hand, when the device acts as a motor, the electrical energy is converted. into mechanical energy.
Squirrel Cage Induction Motor : Construction, Working
The construction of squirrel cage induction simple and rugged. Construction of slip ring induction motors needs slip rings, brushes, short-circuiting device, etc. This type of motor has less overhang and better space factor in slots. These motors have the highest overhang and poor space factor in slots. Cost and maintenance are less.
Three Phase Induction Motor Construction & Working Principle
The induction motor may be considered to be a transformer with a rotating secondary and it can, therefore, be described as a "transformer type" ac machine in which electrical energy is converted into mechanical energy. Construction of Three Phase Induction Motor: Figure 8.1 shows the construction of three phase induction motor.
The Construction of Synchronous Motor | Linquip
1. Stator Construction. The stationary part of the machine is called Stator. It includes various parts like stator frame, stator core, stator windings, and cooling arrangement. They are explained below in detail. 1.1. Stator Frame. It is the outer body of the machine made of cast iron, and it protects the inner parts of the machine. 1.2. Stator ...
Introduction to Induction Motor
An induction motor is an asynchronous AC electric motor which converts alternating current electricity into the mechanical energy. It is called an induction motor because the electric current in the rotor circuit required to produce the deriving torque is obtained through electromagnetic induction from the rotating magnetic field of the stator ...
Single Phase Induction Motor: Working Principle
Construction: The construction features two main parts—stator and rotor—with the stator receiving AC power and the rotor designed to rotate and drive …
AC Motors: Induction Motors | IEEE Courses | IEEE Xplore
This module will present the fundamental concepts of induction motors. It will discuss the components of the machine, constructional details and control. Topics covered include: Components of an Induction Motor; Wound rotor and Squirrel Cage Induction Motors; Torque-speed characteristics and concept of slip; V/F Control Strategy and Field ...
Basic construction of 3-phase AC induction …
Basic construction. The AC induction motor comprises 2 electromagnetic parts: Stationary part called the stator. Rotating part called the rotor, supported at each end on bearings. The stator and the rotor …
Three Phase Induction Motor Construction
Three Phase Induction Motor Construction. Like all motors, a three-phase induction motor contains a stator (the stationary part) and a rotor (which rotates). Each contains …
Construction of Three Phase Induction Motor
3 Phase Induction Motor Construction. Like any other type of electrical motor induction motor, a 3 phase induction motor is constructed from two main parts, …
Three Phase Induction Motor: Types, Working, …
Application of 3-Phase Induction Motors. The induction motor is mostly used in industrial applications. The squirrel cage induction motors are used in residential as well as industrial applications …
UNIT III THREE PHASE INDUCTION MOTOR 1. Explain …
2. Describe the constructional features of squirrel cage and slip ring induction motors. Discuss the merits of one over other. The induction motor consists of two main parts, 1. The part i.e. three phase windings, which is stationary called stator. 2. The part which rotates and is connected to the mechanical load through shaft called rotor.
Three phase induction motor full constructional details
Strategies of Urban Morphologyfor Improving Outdoor Thermal Comfort and Susta... Three phase induction motor full constructional details. 1. Three Phase Induction Motor: Description of Parts Shaft Base Fan cover Terminal Box Front Cover Frame. 2. Three Phase Induction Motor: Description of Parts Stator. 3.
Part 2 – Constructional Details of DC Machines
The ends of the coils are connected to commutator segments or bars. In lap windings, the number of parallel paths is always equal to the number of poles, and the number of brushes matches the number of poles. The armature coil ends are terminated on adjacent bars of the commutator, making lap windings well-suited for high-current DC generator ...
Construction of DC Machine (Generator & Motor)
Yoke of DC Machine. The modern process of forming the yoke consists of rolling a steel slab around a cylindrical mandrel and then welding it at the bottom. The feet and the terminal box etc. are welded to the frame afterward. Such yokes possess sufficient mechanical strength and have high permeability. 2.
Linear Induction Motor
Constructional Features of Linear Induction Motor Linear induction motor is essentially a special type of a polyphase induction motor with its stator (primary) and rotor (secondary) cut by a radial plane and then unrolled (Figs. 2 (a) and (b)) so that instead of producing a torque (causing rotation), it produces a linear force (causing linear ...
Squirrel Cage Induction Motor: Working Principle
A 3 phase squirrel cage induction motor is a type of three phase induction motor which functions based on the principle of electromagnetism. It is called a 'squirrel cage' motor because the rotor inside of it – known as a 'squirrel cage rotor' – looks like a squirrel cage. This rotor is a cylinder of steel laminations, with highly ...
VARDHAMAN COLLEGE OF ENGINEERING
UNIT-I THREE PHASE INDUCTION MOTOR. An electric motor is a device, which converts electrical energy into mechanical energy. Motors can operate on ac supply, single phase as well as three phase, called as ac motors. Ac motors are further classified as synchronous motors, single phase & three phase induction motors and some special purpose motors.
Induction Machines
Induction Machines Construction 1.Stator - Three Phase Winding 2.Rotor 2.1Squirrel Cage 2.2Phase Wound (Slip Ring) Both windings carry alternating currents. The alternating current is supplied to the stator winding and to the rotor winding by induction. I The induction machine can operate both as a motor and as a generator.
Induction Machines
Induction Machines - Basics and Classifications is This article includes basics of induction motor, principle of induction motor, construction and design of induction motor including both three phase and single phase induction motor. written by Sunil Saharan on Saturday, July 3rd, 2010 At 12:58:15 pm Viewed 6209 times till …
Construction of 3-Phase Induction Motor
The core of the three phase induction motor is made up of thin laminations of silicon steel to reduce the eddy current and hysteresis losses. A number of equally spaced slots are provided on the inner periphery of the laminated core as shown in the figure. The insulated conductors are placed in these stator slots and are connected in a suitable ...
Ac machines: Rotating Magnetic Field and its …
Ac machines: Rotating Magnetic Field and its production. May 16, 2017 • Download as PPTX, PDF •. 3 likes • 3,356 views. N. nishtha97. This is a presentation that mainly covers knowledge …
NPTEL :: Electrical Engineering
3 Phase Induction Machine: Constructional Features and Principle of Operation: Download: 30: 3 Phase Induction machine: Equivalent Circuit: Download: 31: 3 Phase Induction Machine: Speed Torque Characteristics: Download: 32: Testing of Induction Motor: OC and SC Test: Download: 33: 3 Phase Induction Machine: Starting Methods: …
Chapter 1 INDUCTION MACHINES: AN …
1.1. ELECTRIC ENERGY AND INDUCTION MOTORS. The level of prosperity of a community is related to its capability to produce goods and services. But producing …
Construction of Three-Phase Induction Motor
The rotor is a rotating or moving part of the three-phase induction motor. It consists of a rotor core made up of thin laminations of high grade silicon steel to reduce the hysteresis and eddy-current losses. The rotor core is a hollow cylinder, mounted on a shaft. On outer periphery of the rotor core, slots are provided to place the rotor winding.
Induction Motors: Construction, Principle of Operation, …
In this research, we start from the construction of the induction motor and its main parts function. Then, the principle of operating of an induction machine is explained. Moreover, a detailed ...
8. Single-phase Motors
Single-phase induction motors are widely used in electrical appliances and gadgets like ceiling fans, exhaust fans, refrigerators, washing machines, etc. They require only single-phase supply to the stator. The rotor is squirrel-cage type and does not require any supply from a separate source. 8.2 CONSTRUCTIONAL DETAILS