Construction of dc Machines
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 1 – DC Machine Construction and Operating Principles
Part 1 – DC Machine Construction and Operating Principles – PEG-3722 Electrotechnology. Stator. A stator is a mechanical device consisting of the stationary …
Operation, Construction, and Functionality of Direct Current Machines
Operation, Construction, and Functionality of Direct Current Machines brings together many concepts, from the most basic working principles and construction of DC machines to more advanced topics such as electro-magnetism, armature reaction, parallel operations, and many more. Highlighting theoretical concepts and numerical …
DC Machine Construction | Its Parts and their Function
Yoke is also called as frame of the machine. It provides protection to the rotating and other parts of the machine from moisture, dust and mechanical damage etc. Also it provides the mechanical support for the poles. It is an iron body which provides the low reluctance path for the flux. This is essential to complete the magnetic circuit.
Construction of DC Motor (Parts & Images)
A Yoke. Poles. Field windings. Armature windings. Commutator. Brushes. A stator is the static part of the DC machine that houses the field windings and receives the supply. A rotor is the rotating …
DC Machine: Basic Components and Function | EE …
A DC machine is made out of two essential parts, one stationary and one moving, called the field and the armature. An …
DC MACHINES Basic Structure of Electrical …
Thus, a DC generator or a DC moto r can be broadly termed as a DC machine. These basic constructional details are also valid for the construction of a DC motor . The above figure shows ...
DC Generator
E.M.F Equation of DC generator. The emf equation of the DC generator is given by the equation: (begin {array} {l}E_g=frac {Pphi ZN} {60 A}end {array} ) where. Z is the total number of armature conductor. P is the number of poles in a generator. A is the number of parallel lanes within the armature. N is the rotation of armature in r.p.m.
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.
DC motors and generators
Inherently straight forward operating characteristics, flexible performance and high efficiency have encouraged the widespread use of DC motors in many types of industrial drive applications. The basic construction of a DC motor is shown in Figure 1. Figure 1 - DC motor in schematic form. Standard DC motors are readily available in one …
What is a DC Machine? Basic structure
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 …
Construction of DC Motor | Machine
Also, we can entitle it as the construction of DC machine. A DC motor or machine consists of two windings namely field winding and armature winding. The field winding is stationary and the armature winding can rotate. The field winding produces a magnetic flux in the air gap between the armature and field windings and the armature is placed in ...
Construction of a DC Generator
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 …
DC Motors and Generators
DC machines are one of the three basic multiply-excited rotational electromechanical energy converters. Figure 1 shows an elementary doubly-excited magnetic system. ... through 5 illustrate the general construction of DC machines and the commutator. Figure 2: Diagram of a DC machine. DC Motors and Generators DC motor Fall15 Revised: …
Construction of dc machines | PPT
Download to read offline. Construction of DC machines By, Rohini. Is DC generator. Main construction diagram. Main parts The two. Other parts Yoke Poles Field winding Armature. Yoke Its main function. Poles The …
Construction of DC Machines
DC Machine Construction and Operation | Electrical …
WEBDC Machine Construction and Operation. Figure 1 shows elementary permanent- magnet machine. It is very similar to the AC machine; however, instead of a pair of slip rings to connect to the ends of the coil, there is a …
DC Generator Construction and Working Principle Explained
DC Generator, Overview: DC Generator-In this article, we will learn about DC machines their construction and working principle and the types of DC generators.In our day to day life we come across many common terms such as generator motor etc. These devices are called as DC machines they either convert the mechanical energy …
DC Machines MCQ (Multiple Choice Questions)
The section contains multiple choice questions and answers on dc machines applications, construction, pmdc motors, brushes and commutator assembly. ... The section contains questions and answers on dc motors basics and starting, speed control of shunt and series motor, dc motors braking and ward leonard speed control method. DC Motor Basics ...
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. …
DC motors and generators
The basic construction of a DC motor is shown in Figure 1. Figure 1 - DC motor in schematic form. Standard DC motors are readily available in one of two main …
DC Machine – Construction, Working, Types and …
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. 1. Yoke or Frame The yoke is also known as the frame. It covers the internal parts of the … See more
Part 1 – DC Machine Construction and Operating Principles
DC Generator with 2 Coils and 4 Commutator Segments. The effective, or RMS, value of the voltage is higher when more coils are added to the armature. DC Waveform. The ripple in the DC waveform can also be improved by adding more poles. More poles also provide a stronger field, and therefore a higher induced voltage. DC Generator with 4 Poles.
Principle of Operation of D.C. Machines
PRINCIPLE OF OPERATION. DC generator converts mechanical energy into electrical energy. when a conductor move in a magnetic field in such a way conductors cuts across a magnetic flux of lines and emf produces in a generator and it is defined by faradays law of electromagnetic induction emf causes current to flow if the conductor circuit is closed.
DC Machine : Construction, Working & Its …
This article gives an overview of a DC machine, which includes construction, working, parts, EMF equation, types, its losses, and applications. What is a DC Machine? It is a rotating device which can …
Basic construction and working of a 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 …
Classifications of DC machines : (DC Motors and DC …
by Kiran Daware DC Machines. Each DC machine can act as a generator or a motor. Hence, this classification is valid for both: DC generators and DC motors. DC machines are usually classified on the basis of their field excitation method. This makes two broad categories of dc machines; (i) Separately excited and (ii) Self-excited.
DC Motor Working Principle, Construction and …
It's very important to know about the DC motor working principle and construction in order to master the basics of DC machines. A DC motor converts electrical energy into mechanical …
Electrical Machines | Discover the Basics
DC machine; Poly-phase synchronous machine (AC) Poly-phase induction machine (AC) Transformer. ... The basic construction of AC electrical machines such as generators and motors are the same. Stator Core – The stator is the stationary part of the AC machine. In most AC machines, the stator contains a core made of laminated iron …
Construction of DC Machines
Construction of DC Machines. The major parts can be identified as, 1. Frame 2. Poles 3. Armature 4. Field winding 5. Commutator 6. Brush 7. Other mechanical parts.
DC Machine Construction and Operation | Electrical …
The operation is basically the same as the foregoing description for the simple DC machines. For motor operation, a DC voltage is applied to the armature terminals. The commutator inverts the DC to provide an AC voltage to the armature windings. The difference, of course, between the machines shown in Figures 9 and 10 and the simple …