Dc Machine Of Construction

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· This type of construction is rather common and poles constructed in this fashion are called salient poles Note that the rotor could also be constructed to have salient poles Figure 0 Cross section of DC machine Direct Current Motor Rotor Startor A representative DC machine was depicted in Figure 0 above with the magnetic poles clearly identified for both the stator and the rotor

Types of Machine with Electrical Machine Single Phase Transformer Construction of single Phase transformer Losses in transformer Open Circuit and Short Circuit Test Three Phase Transformer Auto transformer etc

Dec 10 2021· Hello fellows I hope all of you are having fun in your life In today s tutorial we will have a look at Introduction to DC alternating current machines there are 2 types of DC machines first one is DC motors that convert electrical power into mechanical power and the second one is DC generator that converts mechanical power into electrical

DC Machines Electrical Engineering MCQ questions and answers Home >> Category >> Electrical Engineering MCQ questions and answers >> DC Machines; 1 If E b is the back emf of motor and V is the terminal voltage then the condition for maximum power is a E b = V b E b = 2V c E b = V / 2 d E b = V ∧ 2 Answer Explanation ANSWER E b = V / 2 Explanation No explanation

Construction of DC Machine Across section of a 4 pole DC motor is shown in f igure below The construction generally consists of 1 Yok e This is the outer part of the DC motor

Question EXERCISE Chapter 5 DC Machines The Construction Of DC Machines Consist Of Two Important Parts Which Are Armature Winding And Field Winding There Are Two Types Of Field Windings That Use To Generated Magnetic Field Differentiate The TWO 2 Types Of The Field Winding DC Machine Are Divided Into DC Generators And DC Motors

Jun 11 2021· An electrical machine which converts mechanical energy into direct current and vice versa Read also Motors Types Working Construction Applications and More Working of DC Motor How DC motor Works Consider a part of multipolar DC motor as shown in the figure

DC Machine Construction Working Types A DC machine is an electromechanical energy alteration device The working principle of a DC machine is when electric current flows through a coil within a magnetic field and then the magnetic force generates a torque which rotates the dc motor The DC machines are classified into two types such as DC generator as well as DC motor The main learn

Direct Current Motor Rotor Startor A representative DC machine was depicted in Figure 0 above with the magnetic poles clearly identified for both the stator and the Figure 1 is a photograph of the same type of machine Note the salient pole construction of the stator and the slotted rotor As previously stated the torque developed by the machine is a consequence of the magnetic

Construction of DC Machine Across section of a 4 pole DC motor is shown in f igure below The construction generally consists of 1 Yok e This is the outer part of the DC motor It provides the

DC generators are used to reimburse the voltage drop within Feeders DC generators are used to provide a power supply for hostels lodges offices etc This was a comprehensive explanation about DC generators From the information above we can conclude that the main advantages of a DC generator are its simple construction and design

Oct 03 2021· CONSTRUCTION OF DC MOTOR All DC machines mainly consist of two parts One is the stator and the other is Rotor The stator is a stationary part that includes yoke pole pole winding and Interpoles The stator produces the magnetic flux The rotor of the dc machine consists of a commutator brushes compensating winding and a shaft

Jul 03 2021· Hello friends is video me maine Dc motor aur generator ka ek basic introduction diya haiDc machine 3rd semester electrical engineering polytechnic ke l

Jul 31 2021· Interpoles are narrow poles placed at the GNA and fitted to the Yoke and also known as Commutating Poles or Compoles For generator the polarity of Interpoles must be same as that of main Pole ahead of it in the direction of rotation For Motor the polarity of Interpole must be same as that of Main Pole behind it

Apr 22 2021· 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

Construction of dc Machines Department of Electrical Engineering and Computer Science UTK 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

Apr 11 2021· Dc Motor Construction and Working 1 DC Motor Construction and Working 2 • Electric motors are the most important element of today s industrial world • From a simple drill machine to a sophisticated robotic arm electric motors are used everywhere 3

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

Construction of DC Machines Sep 24 2021 • 1 h 20 m Ravendra Yadav 215k watch mins In this special class Ravendra Yadav will be Discussing about the construction of DC Machines which is very important for GATE/ESE point of view Class will be conducted ion Hindi and PDF notes will be provided in English Watch Now Share Similar Classes Hindi Electrical Machines Marathon Session by

A DC motor is defined as a class of electrical motors that convert direct current electrical energy into mechanical energy From the above definition we can conclude that any electric motor that is operated using direct current or DC is called a DC motor We will understand the DC motor construction and how a DC motor converts the supplied DC

Parts Used in Construction of DC Motor Yoke The yoke acts as the outer cover of a DC motor and it is also known as the frame The yoke is an iron body made Poles and Pole Shoe The pole and pole shoe are fixed on the yoke by bolts These are made of thin cast steel or wrought Field Winding

Basic construction details about design of DC Motor or Generator

CONSTRUCTION OF DC MACHINE Figure given below shows the Construction of a 4 pole DC machine 4 POLE DC MACHINE Essential Parts of the DC Machine are discussed below YOKE Also called as Frame Main function of the Yoke is to protect the internal parts of machine from any mechanical injury dust or moisture It provides mechanical support to

Whether a machine is generator or a motor the construction basically remains the same as shown in the figure DC machine consists of the following parts Yoke a Functions It serves the purpose of outermost cover of the machine So that the insulating materials gets protected from harmful atmospheric elements like moisture dust and various gases like SO 2 acidic fumes etc It

DC Machines Construction The stator of the dc motor has poles which are excited by dc current to produce magnetic fields In the neutral zone in the middle between the poles commutating poles are placed to reduce sparking of the commutator The commutating poles are supplied by dc current Compensating windings are

Jul 03 2021· Hello friends is video me maine Dc motor aur generator ka ek basic introduction diya haiDc machine 3rd semester electrical engineering polytechnic ke l

Oct 07 2021· Construction wise there are four Main parts of DC machine namely field magnet armature commutator and brush Actually a DC machine means a DC motor or a DC generator constructionally both are same If rotor of a DC machine is rotated through means of a prime mover It produces electricity at armature on the other hand electricity if supplied

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 Components of a DC