basic dc machine construction ppt

DC Motor - Basics, Construction, Types & Its Application

Today dc motors are still found in many applications as small as toys and disk drives or in large sizes to operate steel rolling mills and paper machines. DC Motor Equations. The magnitude of flux experienced is. F=BlI. Where, B- Flux density due to flux produced by field windings. l- Active length of the conductor. I-Current passing through ...

What is a DC Machine? Basic structure & Equivalent circuit ...

Basic Structure of Electrical Machines. The rotating electrical or DC machine has mainly two parts; one is Stator, and another one is Rotar. The stator and rotor are separated from each other by an air gap. The stator is the outer frame of the machine and is immovable. The rotor is free to move and is the inner part of the machine.

DC GENERATOR - SlideShare

Oct 13, 2016· dc generator 1. electrical machines instrumentation & control dept d.c generator prepared by ketan nayak (140413117005) ashish patil (140413117009) 2. index s.r no topic name 1 introduction 2 principle of operation 3 construction 4 …

DC Machine - Construction, Working, Types, EMF Equation ...

Apr 26, 2019· A DC machine is an electromechanical energy alteration device. The working principle of a DC machine is when electric current flows through a coil within a magnetic field, and then the magnetic force generates a torque that rotates the dc motor. The DC machines are classified into two types such as DC generator as well as DC motor.

Basic construction and working of a DC Generator ...

DC Generator. A dc generator is an electrical machine which converts mechanical energy into direct current electricity.This energy conversion is based on the principle of production of dynamically induced emf. This article outlines basic construction and working of a DC generator.. Construction of a DC machine:

Introduction to DC Machines, Working, Construction ...

Dec 10, 2019· Hello, fellows, I hope all of you are having fun in your life. In today's tutorial, we will have a look at Introduction to DC Machines.Like alternating current machines, there are 2 types of DC machines first one is DC motors that convert electrical power into mechanical power and the second one is DC generator that converts mechanical power into electrical.

Fundamentals of motor control - STMicroelectronics

Three-phase brushless DC motor Basics –load angle and rotation N S B rot B sta The torque applied to the motor is proportional to the sine of the load angle (θ). When the rotor magnetic field approaches the stator one, the torque is reduced. U W V θ In order to keep the motor in motion it is necessary to change the direction of the stator ...

DC Motor Starters and Their Circuit Diagram | Electrical ...

Automatic DC starters. Figure 4 shows the automatic DC starter circuit diagram. Contactor M is closed to start the machine. After suitable time delays, contactors 1A and then 2A close, reducing the armature circuit resistance in steps. More than two steps of starting resistance could be included by adding additional contactors.

D.C GENERATORS

University of Babylon Electrical machines mechanical department U1.6 Types of D.C Generators U: D.C Generators are classified according to the way in which a magnetic field is developed in the stator of the machine. Thus, there are three basic classification DC generators (1) permanent-magnet field

What is a Transformer ? Construction, Working, Types & Uses

To understand the main points, we have to discuss some basic terms related to transformer operation. So lets back to basic for a while. A transformer is an AC machine that steps up or steps down an alternating voltage or current. A transformer being an AC machine however cannot step up or down a DC voltage or DC current. It sounds a bit weird ...

Construction of a DC Generator - explanation of its ...

A DC Generator is an electrical device which converts mechanical energy into electrical energy. It mainly consists of three main parts, i.e. magnetic field system, armature and commutator and brush gear. The other parts of a DC Generator are magnetic frame and yoke, pole core and pole shoes, field or exciting coils, armature core and windings, brushes, end housings, bearings and shafts.

Construction of DC Motor (Parts & Images) | Electrical4U

Mar 20, 2013· Construction of DC Motor (Parts & Images) A DC motor is a device that converts direct current electrical energy to mechanical energy (learn about a DC motor's working principle ). A DC motor is constructed with: A stator is the static part of the DC machine that houses the field windings and receives the supply.

Basic Principles and Functions of Electrical Machines

In the synchronous machine, direct current is supplied to the rotor and Alternating Current (A.C.) flows in the stator. On the other hand, a D.C. machine is a machine that is excited from D.C. sources only or that itself acts as a source of D.C. [5]. It is a common practice in industry to employ A.C. motors whenever they are

Electrical Slide Presentation

PPT 10-hr. General Industry – Electrical v.03.01.17. Created by OTIEC Outreach Resources Workgroup. ... If power supply to electrical equipment is not grounded or the path has been broken, or if there are live parts or bare wires, a fault current may travel through a worker's body, causing electrical burns or death. ... Often found on ...

DC Motor Working Principle, Construction and Diagram ...

Oct 03, 2020· CONSTRUCTION OF DC MOTOR. All DC machines mainly consist of two parts. One is the stator and the other is Rotor. The stator is a stationary part that includes yoke, pole, pole winding, and Interpoles. The stator produces the magnetic flux. The rotor of the dc machine consists of a commutator, brushes, compensating winding, and a shaft.

Basic Electrical | Electrical4U

Dec 29, 2018· Everything about Basic Electrical Engineering. We explain concepts like electricity, resistance, voltage, inductors, capacitors, electromagnetism, and more. ... Cyclotron Basic Construction and Working Principle. February 24, 2012 October 25, 2020. ... Direct Current: What is it? (AC vs DC & DC Current Symbol) April 17, 2020 August 1, ...

PPT – DC MOTOR PowerPoint presentation | free to download ...

Electric Motor Manufacturing Plant Project Report PPT 2021-2026 - Expansion in industrial automation represents one of the significant factors propelling the growth of the market. Additionally, technological advancements have enabled manufacturers to …

THEORY, CONSTRUCTION, AND OPERATION

family of electric rotating machines. Other members of the family are the direct-current (dc) motor or generator, the induction motor or generator, and a number of derivatives of all these three. What is common to all the members of this fam-ily is that the basic …

Basic Electrical & DC Theory

Module 2 - Basic DC Theory This module describes the basic concepts of direct current (DC) electrical circuits and discusses the associated terminology. Volume 2 of 4 Module 3 - DC Circuits This module introduces the rules associated with the reactive components of inductance and capacitance and how they affect DC circuits. Module 4 - Batteries

Construction of DC Machine (Generator & Motor)

The dc generators and dc motors have the same general construction. In fact, when the machine is being assembled, the workmen usually do not know whether it is a dc generator or motor. Any dc generator can be run as a dc motor and vice-versa. Read: Working of DC Motor. All dc machines have five principal components.

#1 DC Machines Basics - Introduction to ports - YouTube

May 17, 2018· This is a re upload of my video after many asked me to boost the sound...We discuss the concept of ports in this video-----...

(PDF) DC Motors - ResearchGate

DC Motor: Futures of DC Motors: 1- Most of the electrical machines in service are AC types. 2- DC machine are of considerable ind ustrial importance. 3- DC machine mainly used as DC m otors and ...

(PDF) Construction and Working of Brushless DC Motors ...

Construction and Working of Brushless DC Motors Electrical equipment often has at least one motor used to rotate or displace an object from its initial position. There are a variety of motor types available like induction motors, servomotors, DC motors (brushed and brushless), etc. to be used depending upon the application requirements.

DC GENERATOR - Weebly

Above figure shows the constructional details of a simple 4-pole DC generator. A DC generator consists two basic parts, stator and rotor. Basic constructional parts of a DC generator are described below. Yoke: The outer frame of a generator or motor is called as yoke. Yoke is made up of cast iron or steel.

DC MACHINES AND TRANSFORMERS

II. Demonstrate the working principle of different types of dc machines and transformers. III. Analyze the losses in dc machines to improve the efficiency by conducting various tests. IV. Outline the principle of operation, construction and testing of single phase transformers. UNIT-I

Basics of DC Motors For Electrical Engineers – Beginners

Mar 29, 2019· DC motor construction parts. A DC motor is composed of the following main parts: Field coil or stator. This is a non-moving part of the magnetic circuit on which a winding is wound in order to produce a magnetic field. The electro-magnet that is created has a cylindrical cavity between its poles. Armature or rotor

DC Generator : Construction, Working Principle,Types, and ...

Construction. A DC generator is also used as a DC motor without changing its construction. Therefore, a DC motor otherwise a DC generator can be generally called a DC machine. The construction of a 4-pole DC generator is shown below. This generator comprises of several parts like yoke, poles & pole shoes, field winding, an armature core, armature winding, commutator & brushes.

DC machines - uliege.be

DC machines 1 DC machines Transformsmechanicalenergyintoelectric energywithDC voltage and current(DC generatoror dynamo), or conversely(DC motor)