The DC Shunt-wound motor, running on Direct current, has its field windings placed in parallel to the armature In Electrical terms, parallel is generally denoted as shunt That is the reason behind naming it a DC Shunt motor Same voltage is applied to both shunt winding and armature in this motor This parallel configuration allows independent path of current for field winding and armature...
Constructional Features of DC Machines Armature Lap and Wave Winding Summary and Exercise are very important for perfect preparation You can see some Constructional Features of DC Machines Armature Lap and Wave Winding sample questions with examples at the bottom of this page...
DC series motor works on the direct current converting electrical energy to mechanical energy It works on the principle of generation of rotational motion when a conductor placed in magnetic field carries current The interaction of the generated magnetic field and external magnetic field results in the rotational movement In this motor field winding is placed in series to the armature...
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...
The voltage drop in the shunt machine is therefore compensated by the voltage rise in the series machine External characteristic of DC compound wound generator is drawn between the terminal voltage and the load currentBy adjusting the no of amp-turns in the series field winding we can get following external characteristics 1...
DC Machines Construction is an important part of Electrical Machines and it is a favorite subject of competitive examinations DC Machines Construction plays an important role in every competition exam DC Machines Construction asks 2-4 questions in every exam This subject is quite easy and it can be easily understood by practicing it...
Construction of Induction Motor The three phase induction motor is a preferable type of motor It is mostly used in industrial drives because it is very reasonable and vigorous, economical and reliable It is also called asynchronous motor because it does not run at a synchronous speed...
The Direct Current DC machine, the synchronous machine, and the induction machine are the major electromechanical conversion devices in industry 1 The merits of , On the other hand, the basic constructional features of an AC machine eg induction machine are Rigid Frame - The whole construction ensures...
May 15, 2018 0183 32 A DC Machine is an electromechanical device that is constructed such that it can be used as a Series, Shunt or Compound DC Generator OR DC Motor Without trying to explain it with lots and lots of words, lets do it a thousand at a time If you kno....
For industrial and mining applications, 3-phase AC induction motors are the prime movers for the vast majority of machin These motors can be operated either directly from the mains or from adjustable variable frequency driv In modern industrialized countries, more than half the total ....
Compound machines can be further classified as cumulative and differential Cumulative and differential machines can be further classified as long shunt and short shunt As you can see, there are a variety of electrical configurations for a DC machine For the purpose of this article, we will stick with the series- and shunt-wound DC motor...
CONSTRUCTIONAL FEATURES Stator o In general any DC machine will have these parts- Pole Shoe/ Face Field Winding 1STATOR PART Yoke Pole core Pole Shoe Field/ Exciting windings Brushes Armature Core Bearing Shaft 2ROTOR PART Armature core Armature windings Commutator Mechanical connections Armature Winding Commutator Brush...
In this article, let us discuss about synchronous generator working principle Synchronous Generator The rotating and stationary parts of an electrical machine can be called as rotor and stator respectively The rotor or stator of electrical machines acts as a power-producing component and ,...
Jul 11, 2019 0183 32 The DC motor is of vital importance for the industry today and is equally important for engineers to look into the working principle of DC motor in details that we have discussed in this article To understand the operating principle of DC motor we need to first look into its single loop constructional feature...
The primary advantage of the DC motor is that it can develop constant torque over a wide speed application Power supply is an important consideration in the application of DC motors The most common way to provide DC voltage to a motor from an AC line is through the use of an electronic drive...
DC generator characteristics are the relations between excitation, terminal voltage and load exhibited graphically by means of curv These characteristics of dc generators are very important in the design and operation of dc generators This article describes the different characteristics of a dc generator in brief One question comes into our mind is that why the DC generator ....
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, ie Magnetic field system, Armature and Commutator and Brush gear...
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 worki....
Series DC motor In a series DC motor the field is connected in series with the armatureThe field is wound with a few turns of large wire because it must carry the full armature current A characteristic of series motors is the motor develops a large amount of starting torque However, speed varies widely between no load and full load...
Series wound Dc motor Series wound Dc motor as we said before that this type of dc motor is a self-excited Dc motor which converts electrical power into mechanical power based on electromechanical law, but in this motor, the field winding is connected in series to the armature winding...
Now let us discuss about construction of alternator or synchronous machine The most important parts in alternator design are stator rotorModern alternators prefer rotating field type of constructionUnlike dc generators i n case of alternators construction the winding terminology is ,...
THEORY, CONSTRUCTION, AND OPERATION 1 , OF SYNCHRONOUS MACHINES The synchronous electrical generator also called alternator belongs to the family of electric rotating machin Other members of the family are the direct- , direct-current dc electric power The dc can be considered a particular case of...
DC Generator A dc generator is an electrical machine which converts mechanical energy into direct current electricityThis 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...
DC Machines Working principle of DC machine as a generator and a motor Types and constructional featur Types of armature windings, Emf equation of generator, relation between induced emf and terminal voltage with a mention of brush contact drop and drop due to armature reaction Illustrative examples, neglecting armature reaction...
Construction of DC Machine - there are seven main parts of dc machine or motor generator which as follows Yoke Pole core and pole shoes Pole coil...
Feb 26, 2014 0183 32 Construction of dc machines 1 Construction of DC machines By, Rohini Haridas Assistant Professor, Dept of Electrical Engineering, SSGM College of Engineering,Shegaon 2 Is DC generator and motor have same construction??? 3 Main construction diagram 4 Main parts The two major parts required for construction 1...
Electrical Engineering Assignment Help, What are the constructional features of dc machines, Q What are the Constructional Features of DC Machines? Adc generator ormotormay have asmany as four fieldwindings, depending on the type and size of the machine and the kind of service intended These field windings consist of two normal excitin...
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Commutators are used in direct current DC machines dynamos DC generators and many DC motors as well as universal motors In a motor the commutator applies electric current to the windings By reversing the current direction in the rotating windings each half turn, a steady rotating force is produced...
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 ....
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