function of yoke construction of dc machine

DC Motor Working Principle, Construction and Diagram Explanation

It is made up of cast steel for large DC motors. And cast iron for small DC motors. The yoke is used in DC machines because: A) It provides mechanical support to poles. B) Acts as a protective cover against mechanical damage. C) And provides a passage for the magnetic flux produced by the poles of the machine.Web

Construction of DC Machines

The yoke or frame of the DC machine serves the following main purposes − It protects the internal machine parts like armature, windings, field poles, etc. against mechanical damages. The yoke houses the magnetic field …Web

Construction and Working of DC Machines

In this post, you will be getting to know "how dc machines work?" and also construction and working of DC machines. Let us see the construction of DC machine in detail. Yoke . The Yoke is the Outermost part of the machine which comprises of all other utilities. The function of a Yoke . → The main function of the yoke is to protect the ...Web

DC MACHINES Basic Structure of Electrical Machines

A DC Machine is an electro-mechanical energy conversion device. There are two types of DC machines; one is DC generator, and another one is known as DC motor. A DC generator converts mechanical ...Web

Parts of DC Machines

The yoke is a stationary and outer cylindrical part of DC machines. The cheapness is main consideration therefore yoke is made up of cast iron in the small DC machines but it is made up of cast still or rolled still in the large DC machines. The function of the yoke is to (1) Carry the magnetic flux produced by the poles (2) To …Web

DC Motor | Construction | Parts

Furthermore, a cutaway view of the DC Motor is presented and discussed in detail. The main parts of a typical DC motor are: field frame or yoke. end-shields and bearings. field poles. field coils. armature and commutator. …Web

Construction of dc machines | PPT

7. Yoke Its main function is to form a protective covering over the inner sophisticated parts of the motor and carries the flux produced by the poles. Made up of cast iron or steel. 10. Construction of dc machines - …Web

Study Notes

The main function of the yoke in the machine is to offer mechanical support intended for poles and; gets induced within it. This winding is allied to an exterior circuit. ... DC Machine: Construction and their Applications Construction of DC Machine The construction of DC machine can be done using some of the essential parts like Yoke, ...Web

Construction of DC Motor | Machine

The construction of DC motor or machine is shown in the following Figure. Construction of dc machine Parts Used in Construction of DC Motor | Machine. The main parts used in the construction of DC motor are the yoke, poles, field winding, commutator, carbon brushes bearings, etc. A brief description of the various parts is as follows:Web

DC Machine: Construction and their Applications

The main function of the yoke in the machine is to offer mechanical support intended for poles and protects the entire machine from the moisture, dust, etc. The materials used …Web

EXPERIMENT:01 Aim: Constructional study of DC Machine Parts …

Constructional features: Generator and motor are very similar to each other in essential parts and construction. The essential parts of dc machine, as shown in figure 1, can be grouped into two categories depending upon their placement as follows Parts in stator Magnetic Frame/ Yoke Parts in Rotor Armature Core Main Poles Main field Winding ...Web

What is the purpose of yoke in a dc machine?

santhosh January 19, 2018, 6:49am 1 It acts as a protected cover for the whole machine and provides mechanical support for poles. It carries the magnetic flux produced by the …Web

Direct Current Commutator Machines | SpringerLink

Abstract. Although DC commutator machines are nowadays largely being replaced by rotating field machines, they remain an interesting study object. The basic principles for energy conversion are similar to those of other machines. Moreover, their excellent control properties (e.g. speed control, torque control) are the inspiration for …Web

Construction of DC Generator

The DC machine consists of two parts: One part is rotating, called rotor and the other part is stationary, called stator. Construction Of DC Generator. The major components of a DC machine are: Magnetic …Web

DC Machine Construction | Its Parts and their Function

5 rowsAll parts of above dc machine explain one by one with its function and material used for ...Web

Unit-4- Electrical Machines

The complete assembly of various parts in a scattered form of a DC machine is shown in Fig. 4.1. The essential parts of a DC machine are described below: Fig-4.1 Disassembled parts of a DC machine 1. Magnetic Frame or Yoke: The outer cylindrical frames to which main poles and inter poles are fixed is called yoke. It also helps to fix the ...Web

DC Generator | Construction and Working Principle

A DC generator is an electrical machine whose main function is to convert mechanical energy into electricity. When the conductor slashes magnetic flux, an emf will be generated based on the …Web

12 Essential Parts of DC Generator & Their Functions [PDF]

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, …Web

DC Machine : Construction, Working & Its Applications

So, these machines are used at a place where there is a requirement of single directional power. These machines are used in batteries to generate unidirectional power. This article gives an overview of a DC machine, which includes construction, working, parts, EMF equation, types, its losses, and applications.Web

Construction of dc Machines

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.Web

DC MACHINES AND TRANSFORMERS

Yoke of DC generator serves two purposes, 1. It holds the magnetic pole cores of the generator and acts as cover of the generator. 2. It carries the magnetic field flux. In small generator, yoke are made of cast iron. Cast iron is cheaper in cost but heavier than steel. But for large construction of DC generator, where weight of the machine is ...Web

Chapter 2 Direct Current Commutator Machines

2.2 Construction of the DC Machine 2.2.1 Basic Construction - Operating Principle Construction The most important electromagnetic parts of a DC machine are the following (see also Fig.2.1): • The standstill excitation system mainly consisting of – the main poles P – the excitation winding W (or permanent magnets for small machines ...Web

DC Machines

Construction of DC machines : A D. C. machine consists of two main parts 1. Stationary part: It is designed mainly for producing a magnetic flux. ... Parts of a Dc Generator: 1) Yoke 2) Magnetic Poles a) Pole core b) Pole Shoe 3) Field Winding ... Functions: 1. Pole core basically carries a field winding which is necessary toWeb

What is the purpose of yoke in a dc machine?

What is the purpose of yoke in a dc machine? It acts as a protected cover for the whole machine and provides mechanical support for poles. It carries the magnetic flux produced by the poles. The flux per pole divides at the yoke, so that the yoke carries only half the flux produced by each pole. It acts as a protected cover for the whole ...Web

DC Machine

Construction of DC Machine

Function. It provide mechanical Support for poles; It also provide protection to whole machine from dust, moisture etc. It also carries magnetic flux produced by the poles; Yoke is also called as frame. …Web

D.C. Machine | Types, Losses, and Applications

The main types of DC machines are: Separately Excited DC Machine: This machine has its field coils powered by an external DC source. The source is separate from the machine itself. Shunt-Wound (Shunt) DC Machine: In this type, the field coils are connected in parallel (shunt) with the armature.Web

DC Motor | Construction | Parts

DC Motor Construction. Field Frame or Yoke. In a DC motor, the field frame, or yoke, carries the field poles and also provides a magnetic path between poles. Since a material of high magnetic permeability is …Web

DC Machine: Basic Components and Function | EE …

An essential example of a DC machine is a copper coil spinning on its own axis between two magnets. A practical DC …Web

Construction of DC Generator

Almost all the generators work on the principle of electromagnetic induction. Let us see the construction of the dc generator. A dc generator consists of mainly two parts. They are stationary part (which doesn't rotate with the rotor) and rotating part (which rotates with the rotor). Stationary parts of a dc generator are, Yoke or magnetic frame.Web