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June 16 2024 by admin Switched Reluctance Motor SRM is also known as Variable Reluctance Motor This motor works on the principle of variable reluctance This means the rotor always tries to align along the lowest reluctance path As the name suggests a switching inverter is required for the operation of Switched Reluctance Motor
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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
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Working principle of Grinding Machine The working principle of a grinding machine is quite easier to In a grinding machine there is an electric motor which supplies the motion power to the grinding wheel with the help of a belt and So when we start the electric motor the motor rotates at a certain rpm 150 15000 RPM it may change according to the types of grinding
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The resistance temperature detector uses the change in electrical resistance of the sensing element to determine its temperature This is the basic resistance temperature detector working principle The metals having a positive temperature coefficient is used for the construction of RTDs Mostly platinum is used
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DC MACHINE DC MACHINE THEORY •WHAT IS DC MACHINE •GENERATORS AND MOTORS •OPERATING PRINCIPLE •NECESSTIES FOR INDUCING EMF AC DC MACHINE DC MACHINE THEORY •WHAT IS School Lovely Professional University Course Title BTECH ELE Type Notes Uploaded By atulsainimba Pages 10 This preview shows page 1 10 out of 10 pages
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Basics of Single phase induction motor The single phase induction motor is not started by itself We require a starter for starting the motor When the motor is connected to a single phase power supply the main winding carries an alternating current Single phase induction motors have types according to the way of their starting
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Operating Principles and Construction What is a Transformer A transformer is a static piece of equipment used either for raising or lowering the voltage of an AC supply with a corresponding decrease or increase in current The use of transformers in transmission system is shown in the Figure below Principle of Operation
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Construction and working principle of Transformer In a step up transformer the input voltage is stepped up to a high output voltage The number of turns in the primary coil is less than the secondary coil in the step up transformer When the output voltage is lower than the input side it is called a step down transformer
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• The construction of motors and generators are similar • Every generator can operate as a motor and vice versa • The energy or power balance is Generator Mechanical power = electric power losses Motor Electric Power = Mechanical Power losses Introduction to AC Machines Dr Suad Ibrahim Shahl 3 AC winding design The windings used in rotating electrical machines can
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A Transformer works on the principle of electric mutual induction A Transformer operates when both circuits take effect by mutual induction A Transformer can t step up or step down the level of DC voltage or DC Current A Transformer only step up or step down the level of AC voltage or AC Current
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Principles of Test Construction 1 SlideShare Principles of Test Construction 1 1 WHAT is a TEST Yenna Monica D P 2 A Test is an… • assessment to measure a test taker s knowledge skill aptitude physical fitness or classification in many other topics Yenna Monica D P • …
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AC electromechanical generators known as alternators are of simpler construction than DC electromechanical generators AC and DC motor design follows respective generator design principles very closely A transformer is a pair of mutually inductive coils used to convey AC power from one coil to the other Often the number of turns in each
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Synchronous machine is an AC machine whose satisfactory operation depends upon the maintenance of the following relationship Where N s is the synchronous speed in revolution per minute f is the supply frequency P is the number of poles of the machine When connected to an electric power system a synchronous machine always maintains
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working principle of washing machine ppt As a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any size reduction requirements including quarry aggregate and different kinds of minerals We can provide you the complete stone crushing and beneficiation also supply stand alone crushers mills and beneficiation
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Sensitive drill machine/press This is a light weight high speed machine designed for drilling small holes in light jobs Generally the machine has the capacity to rotate drills of to rnrn at high speed of 20 000 rev/min Construction The machine has only a hand feed mechanism for feeding the tool into the workpiece
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Construction of DC Machine 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
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Dec 2 2021AC Generator A machine that transforms mechanical energy into electrical energy is known as an AC generator Mechanical energy is supplied to the AC Generator through steam turbines gas turbines and combustion engines Alternating electrical power in the form of alternating voltage and current is the output Principle of AC Generator AC generators function on Faraday s law of
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Specific refrigerants are needed as the working fluid in the refrigeration cycle An air conditioner goes through 4 processes compression condensation expansion and evaporation Typically an air conditioner is made up of 4 major components compressor heat exchanger fan and expansion valve AC Working Principle in Diagram
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HVAC stands for Heating Ventilation and Air Conditioning equipment They are used to provide thermal comfort and improve air quality There are two other types of HVAC systems which are HVACR and HACR They can be fitted to residential structures corporate structures and hospitals HVAC systems replace air and provide air with high indoor
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The supply given to the field winding classifies its type whether it is AC or DC type machine Construction of AC Motor It consists of a Frame or Yoke stator rotor bearings fan shaft and slip rings The parts of an AC machine is explained below Parts of Motor
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As with all air conditioning systems the principle remains the same whereby the heat is removed from one area and replaced with chilled dry air and the hot air is expelled normally to the outside atmosphere As you can see from this typical example of a air conditioning system the ambient air is drawn over the condensor that can best described as a radiator as seen on motor vehicles
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IARE AC Machines Page 1 LECTURE NOTES ON AC MACHINES 2024 2024 II B Tech II Semester IARE R16 Construction In actual practice the three coils form three windings distributed over several slots These windings may be connected in star or delta and three terminations are brought out These are conventional three phase windings which are discussed in greater detail in the chapters
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Lecture Notes Electrical Machine II [BEE 1401] Page Construction and principle of operation 3 phase Induction Motor general phasor diagram equivalent circuit power and torque relations condition for maximum torque circle diagram Performance characteristics effect of rotor resistance on speed torque characteristics stable unstable region of operation
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The operation of the DC motor is based on the principle that when a current carrying conductor is placed in a magnetic field a mechanical force acts on the conductor The magnitude of the force is given by F = B I l N e w t o n s The direction of this is given by the Fleming s left hand rule
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AC generator is a machine that converts mechanical energy into electrical energy The AC Generator s input supply is mechanical energy supplied by steam turbines gas turbines and combustion engines The output is alternating electrical power in the form of alternating voltage and current
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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 energy The input electrical energy is obtained from rechargeable batteries solar cells etc The mechanical energy generated is further utilized to rotate pumps
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Introduction to Electrical Machines ppt… Contents Basic construction and principles DC machines Synchronous machines Induction machines Get Price the fundamentals of ac electric induction motor… Basic Design and Theory of Operation The alternating current AC induction motor is one of the most rugged and most widely used machines in industry Get Price Transformer Construction
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Drilling Machine It is a machine which is used to drill the holes on the components or workpiece with the help of drill bits The drill bits are also called as Multi point cutting tools which can have their rapid impact on the Material Removal Rate MRR a single point cutting tool like the one used in a lathe machine can remove the material slowly whereas a multi point cutting tool
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Advantages of a Potentiometer Over a Voltmeter A potentiometer can be used to measure the internal resistance of cell which cannot be measured by the voltmeter A Potentiometer can be to measure of a cell which cannot be measured by a voltmeter When a voltmeter is connected in a circuit it draws current through the circuit and thus can
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Construction of AC synchronous generator alternator The main parts of an alternator obviously consists of a stator and a rotor But unlike other machines in most of the alternators field exciters are rotating and the armature coil is stationary Stator Unlike in a DC machine the stator of an alternator is not meant to serve a path for
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