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Part 1 DC Machine Construction and Operating Principles Part 2 Constructional Details of DC Machines Part 3 DC Generators Part 4 Parallel Operation of DC Generation Part 5 DC Motor Operation Part 6 Torque and Speed Part 7 DC Motors Part 8 DC Motor Starters
·DC Machine Construction of DC Machine The construction of DC machine can be done using some of the essential parts like Yoke Pole core & pole shoes Pole coil & field coil Armature core Armature winding otherwise conductor commutator brushes & bearings Some of the parts of the DC machine is discussed below
·The document describes the main construction of DC machines It lists the two major parts as the stator which houses the field winding and the rotor which rotates in the magnetic field It then describes the other key parts which include the yoke poles field winding armature winding commutator and brushes
Direct current machines are energy transfer devices These machines can function as either a motor or a generator DC motors and generators have the same basic construction differing primarily in the energy conversion To better understand the operation and construction of DC machines a few basic terms must be understood
A DC motor is an electrical machine that converts electrical energy into mechanical energy Know more DC motor parts types and working at BYJU S Login We will understand the DC motor construction and how a DC motor converts the supplied DC electrical energy into mechanical energy in the next few sections
3/23/2007 ELEC A6 DC Machine 7 DC MACHINES Real DC machine Construction • Stator Stationary part of the machine The stator carries a field winding that is used to produce the required magnetic field by DC excitation Often know as the field • Rotor The rotor is the rotating part of the machine The rotor carries a
·DC machines extends beyond trains mills and mines They are still widely used in various industries and applications where precise speed control and torque regulation are required such as in paper mills steel mills cranes and machine tools DC Machine Construction & Its Principle 13 October 2024 506 Human Machine Interface HMI
·The construction of a DC generator can frequently be used as a DC generator motor So a DC machine may typically be used to refer to a DC generator motor The main parts of DC generators are the yoke poles pole shoes armature core armature winding commutator brushes magnetic field system commutator end housings bearings and shafts
2 ·The materials used in the construction of DC machines include high grade steel copper and carbon To minimize eddy current losses DC machines use high grade steel for the laminated cores of the stator and rotor The windings of the armature and the field system are made of copper and carbon brushes make contact with the commutator
·This document summarizes the construction of a 4 pole DC machine It has two main parts the stator and rotor The stator contains the yoke poles pole shoes and field winding The yoke provides mechanical strength and carries magnetic flux Poles hold the field winding and pole shoes spread flux uniformly
·Real DC machines have a similar construction to the four pole machine considered except they have more loops and moremachine considered except they have more loops and more commutation segments EEL 3211 © 2008 H Zmuda 7 DC Machines 38 Practical Issues Associated with Commutation 1 Armature reaction Current flowing in the
·Construction of DC machines 1 Yoke The outer frame of a dc machine is called a yoke It is made up of cast iron or steel It not only provides mechanical strength to the whole assembly but also carries the magnetic flux produced by the field winding 2 Poles and pole shoes Poles are joined to the yoke with the help of bolts or welding
·Introduction to DC Machines Construction of a DC machine Equation Working principle as a Generator or as a Motor Types of Armature winding Lap winding and Wave winding concept of simplex duplex & multiplex winding Magnetization curve of DC machines Torque Losses & efficiency of DC machines Machines Generators
·DC machine Construction The shaft of a DC machine The shaft of a dc machine uses iron/steel depending upon the applications But for heavy usage it uses mild steel The shaft also comes with grooves on it The position of the grooves also depends upon the position of the armature core and bearings commutator etc
· Construction of the DC Machine Basic Construction Operating Principle Construction The most important electromagnetic parts of a DC machine are the following see also • The standstill excitation system mainly consisting of the main poles P the excitation winding W or permanent magnets for small machines
·Construction of the DC motor All DC machines mainly consist of two parts One is the stator and the other is the Rotor The stator is a stationary part that includes a yoke pole pole winding and Interpoles The stator produces the magnetic flux
The DC Machine block implements a wound field or permanent magnet DC machine For the wound field DC machine you can access the field terminals F F− to use the machine model as a shunt connected or a series connected DC machine
·Construction of a DC Motor Here is the schematic diagram of a DC Motor A DC motor consists of six main parts which are as follows It supports the field pole core and acts as a protecting cover to the machine It provides a path for the magnetic flux produced by
·Microsoft PowerPoint DC Machine Author Kishore Chatterjee Created Date 8/28/2009 3 51 44 PM
DC machine also contains several components as shown in Figure 1 [18] the essential parts of a DC machine are described below Stator parts Yoke Pole Core Pole Shoes Field Coils
·4 4 Construction of DC Machine Dr J Belwin Edward Associate Professor SELECT Vellore Institute of Technology Vellore Tamil Nadu India • Stator Assembly • Yoke •Field Pole Core • Field Windings / Coils • Rotor Assembly • Armature Core • Armature Winding / Coil • Commutator • Brushes • Ball Bearings • It consists of Pole Core & Pole Shoe • Pole
Of all changes in materials technology over the last several years advances in permanent magnets have had the largest impact on electric machines Simple Permanent Magnet Machine Structures Commutator Machines Figure 17 is a cartoon picture of a cross section of the geometry of a two pole commutator machine using permanent magnets
·Construction of dc Machines The rotor in a dc machine is called an armature The armature has cylindrical steel core that is composed of a stack of slotted laminations Slots in laminations are aligned axially along rotor or shaft Armature windings are placed in slots The stator in a dc machine is the field part of the machine
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