DC Motor - Basics, Construction, Types & Its Application
Construction of DC Motor The construction of the DC motor is shown below It is very important to know its design before knowing it’s working The essential parts of this motor include armature as well as stator DC MOTOR The armature coil is the rotating part whereas the stationary part is the stator...
DC Generator : Construction, Working Principle,Types, and ,
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 & brush...
Construction of DC Motor (Parts & Images) | Electrical4U
Mar 20, 2013· A stator is the static part of the DC machine that houses the field windings and receives the supply A rotor is the rotating part of the DC machine that brings about the mechanical rotations All these parts put together make up the total construction of a DC motor...
welded to the end rings shown in Fig: 31(b)In small machines the conductor bars and end rings are sometimes made of aluminium with the bars and rings cast in as part of the rotor core Actually the entire construction (bars and end-rings) resembles a squirrel cage, from which the name is derived...
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...
welded to the end rings shown in Fig: 31(b)In small machines the conductor bars and end rings are sometimes made of aluminium with the bars and rings cast in as part of the rotor core Actually the entire construction (bars and end-rings) resembles a squirrel cage, from which the name is derived...
Basic operational voltage equation of a DC motor is given as E = E b + I a R a and hence, I a = (E - E b) / R a Now, when the motor is at rest, obviously, the back emf E b = 0 Hence, armature current at the moment of starting can be given as I a = E / R aIn practical DC machines, armature resistance is basically very low, generally about 05 ΩTherefore, a large current flows through the ....
(PDF) Construction of DC Motor | Engr AttaurRehman ,
A practical DC motor consists of the following physical components: o Magnetic frame (yoke) o Pole shoes o Field coil o Armature core o Armature winding o Commutators o Brushes o Bearings Magnetic frame (Yoke): o It is made of cast iron or rolled steel...
Working Principle of DC Motor - StudyElectricalCom
Feb 10, 2019· There is no basic difference in the construction of a DC generator and a DC motor In fact, the same DC machine can be used interchangeably as a generator or as a motor Like generators, there are different types of DC motors which are also classified into shunt-wound, series-wound and compound-wound dc motors DC motors are seldom used in ordinary applications because all ,...
What is a DC Machine? Basic structure & Equivalent circuit ,
A DC Machine is an electro-mechanical energy conversion device There are two types of DC machines; one is the DC generator, and another one is known as DC motor A DC generator converts mechanical power (ωT) into DC electrical power (EI), whereas, a DC motor converts dc electrical power into mechanical power...
3-Phase induction machine construction • 3 stator windings (uniformly distributed as in a synchronous generator) • Two types of rotor: –Squirrel cage –Wound rotor (with slip rings) The rotating magnetic field , • DC Test (or use Ohm-meter)...
4 BhlBrushless DC motor: a close cousin of a permanent magnet stepper motor with electronic controllers 5 Universal motor: If a seried dc motor has a laminated stator frame, it can run effectively htt // l d iki di / iki di / /6/67 from an ac supply as well as dc, this is the universla 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 synchronous motor or as an alternator Synchronous motors are available in a wide range, generally rated between 150kW to 15MW with speeds ranging from 150 to 1800 rpm...
Construction of DC Machines - The Engineering Knowledge
Jan 01, 2020· Construction of DC Machin In the structure of DC machine either dc motor or generator, there are 2 main parts first one is the static or the second one is moving The static part is stator and moving part is rotor In stator of dc machine, there is a frame that provides protection and support to internal structure from external environment ....
DC Machine & Transformr | PDF | Transformer | Inductance
Dc Machine & Transformr - Free download as Powerpoint Presentation (ppt / pptx), PDF File (pdf), Text File (txt) or view presentation slides online Scribd is the world's largest social reading and publishing site , ¤ The construction of these transformer is...
About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ....
Construction of DC Machine The DC machine consists of Yoke, Pole, and Pole shoe, Armature core, Field Winding, Armature Winding, Commutator, Brushes, shaft, and Bearings Let’s explain each part in detail with applications Yoke or Frame The yoke is also known as the frame...
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 pol Armature or rotor...
Module 5 - DC Generators This module describes the types of DC generators and their application in terms of voltage production and load characteristics Module 6 - DC Motors This module describes the types of DC motors and includes discussions of speed control, applications, and load characteristics Volume 3 of 4 Module 7 - Basic AC Theory...
DC Machine & Transformr | PDF | Transformer | Inductance
Dc Machine & Transformr - Free download as Powerpoint Presentation (ppt / pptx), PDF File (pdf), Text File (txt) or view presentation slides online Scribd is the world's largest social reading and publishing site , ¤ The construction of these transformer is...
About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ....
4 Compound wound DC machine: A Compound machine is a machine which has both shunt and series fields Two windings are carried out by each pole of the machine The series winding has few turns of large cross-sectional area, and the shunt windings have many turns of fine wire It can be connected in two ways...
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 CONSTRUCTION: Cross Sectional View of DC Generator Above figure shows the constructional details of a simple 4-pole DC generator A DC generator...
Construction and working of a DC generator Armature winding Lap winding, wave winding and other related terms Armature reaction Armature reaction in DC machines and it's adverse effects EMF and Torque equation EMF equation of a DC generator and torque equation of a DC motor Characteristics of DC generators Internal (E/Ia), external (V/I L ....
INTRODUCTION TO BASIC NOTIONS ON ELECTRIC POWER 5 Electric Current Conductor Lines of Force Fig 13 Schematic representation of a magnetic field created by the flow of current in a conductor The direction of the lines of force is given by the “law of the screwdriver”: mentally follow the movement of a screw as it is screwed in the same direction as that...
Chapter 5: AC Machine Fundamentals | Engineering360
The main principle of ac machine operation is this: A three-phase set of currents, flowing in an armature windings, each of equal magnitude and differing in phase by 120 , produces a rotating magnetic field of constant magnitude The stator shown in Fig 51 has three coils, each 120 apart Figure 51: A simple three-phase stator...
Feb 24, 2012· A wave winding (also known as a series winding) is a type of armature winding Along with a lap winding, wave windings form one of the two types of armature windings in DC machin In a wave winding, we connect the end of one coil to the start of another coil of the same polarity The coil side (A – B) progresses forward around the armature ....
DC Motors Although ac motors are used in most of the cases, DC motors have many applications and used for multi-purpose applications DC Motor Principle A machine that converts dc power into mechanical energy is known as dc motor Its operation is based on the principle that when a current carrying conductor is placed in a...
Construction of DC Motor (Parts & Images) | Electrical4U
Mar 20, 2013· A stator is the static part of the DC machine that houses the field windings and receives the supply A rotor is the rotating part of the DC machine that brings about the mechanical rotations All these parts put together make up the total construction of a DC motor...
May 12, 2013· Dc machines 1 3/23/2007 ELEC A6 DC Machine 1 Lecture Notes ELE-A6 DC Machine 2 3/23/2007 ELEC A6 DC Machine 2 DIRECT CURRENT (DC) MACHINES Fundamentals • Generator action: An emf (voltage) is induced in a ,...
