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This is the basic principle of electrochemical machining. In this machining process, tool is connected with the negative terminal of battery (work as cathode) and work-piece is connected with the positive terminal of battery (work as anode). They both are placed in a electrolyte solution with a small distance.
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An electric motor is an electromechanical converter (electric machine) that converts electrical power into mechanical power. In conventional electric motors generate current-carrying conductor coils magnetic fields whose mutual attraction and repulsion forces are implemented in motion. Thus, the electric motor is the counterpart to the very similar constructed generator that converts motor ...
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In order to move the load, the motor must generate a certain amount of torque. The torque generated by the motor is proportional to the amount of current that the motor is drawing from its source: more current means more torque. However, the speed of the motor is proportional to the voltage, and voltages at the source are normally fixed.
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1) If the magnitude of V1 is more than V2, then reactive power will flow from source V1 to V2. 2) If the magnitude of V2 is more than V1, reactive power will flow from source V2 to V1. This principle is used in STATCOM for reactive power control. Now we will discuss about the design of STATCOM for better correlation of working principle and design.
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The tool is held on a ram which reciprocates and the work mounted on the table remains stationary and gives the feed. Work is mounted on a table which reciprocates while the tool is held on the machine frame and fed into the work. It is intended for small jobs. It is intended for large jobs. Low machining accuracy. High machining accuracy.
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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.
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Working principle: The rotating edge of the drill exerts a large force on the workpiece and the hole is generated. The removal of metal in a drilling operation is by shearing and extrusion.
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A continuous bending operation is produced by the means of the upper rollers press and the lower roller's rotary motion. While the inner layer performs compression deformation, the middle remains the same and the outer layer stretches for deformation. This entire process results in permanent plastic deformation of the sheet metal workpiece.
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Working principle of DC motor. When kept in a magnetic field, a current-carrying conductor gains torque and develops a tendency to move. In short, when electric fields and magnetic fields interact, a mechanical force arises. This is the principle on which the DC motors work.
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Working Principle of AC Series motor The working principle is the same as the dc series motor. When the ac series motor connected to the AC supply the alternating current start flowing through the field and armature winding. The field winding produces an alternating flux Φ that reacts with current flowing in armature winding to produce a torque.
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The working of an electric iron is very simple - it draws electricity from the mains and heats a coil inside. This heat is then transferred to the bottom plate, which is pressed against the clothing to remove wrinkles. When I learned how to iron my clothes, I was quite annoyed by the whole process. Apparently, the iron switched on and off on ...
Get priceAug 27, 2021 It uses the high temperature arc generated when the positive and negative poles are short-circuited instantaneously to melt the solder and the material to be welded on the electrode to achieve the purpose of combining them. The structure of the electric welding machine is very simple.
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in the edm process, the tool which is called electrode and the work-piece are separated by a small gap and both the electrode (tool) and the work-piece are submerged in a dielectric fluid; the electrode and the work-piece are connected to a dc power source and material is removed from the work-piece surface by repeated sparks in the gap between .
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An electric iron is one of the important fusing machines used for making fusible interlining. An electric iron is used for the batch method or discontinuous method of fusing. This method is not so suitable for the large-scale apparel industry. It is generally used for small-scale interlining production. It is mostly used in bespoke garment making.
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The working of this setup is similar to the setup used in explaining the working principle of the induction motor. First, we will provide the AC voltage and because of this voltage, current flows through stator winding wound on both top and bottom segments. Because of the current, a magnetic field gets generated on both top and bottom windings.
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Conducting blocks of carbon or carbon and copper, called brushes, are placed against the slip rings to make the connection to the outside of the machine. Thus, the rotating coil either receives (motor operation) or delivers (generator operation) AC electric power via the brushes and slip rings.
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Principle of operation of synchronous machines Alternators When DC voltage is applied to the rotor, it becomes an electromagnet. If the rotor is driven by a prime mover, a relative motion happens between the rotor magnetic flux and the stator conductor. Therefore according to faraday's law, an EMF is induced in the stator winding.
Get priceSep 6, 2021Electrical discharge machining (EDM) is a process of removing material by exposing it to repetitive controlled electrical discharges. It is suitable for thermoelectric phenomena. When a discharge occurs between the electrode/wire and the workpiece, heat energy is generated on the workpiece. This leads to the removal of the material layer.
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It is composed of several press cylinders installed on the support plate in front of the frame. After the press cylinder is fed with oil, the press head overcomes the spring tension and presses the plate material. After the shearing is completed, it is reset by the pulling force of the spring. Hydraulic system
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2 Speed Control of Motors In contrast to these unique current pulses, the motor's controls incorporate circuits that develop variable width current pulses—and thus produce harmonics— that are used to vary the speed of motors. 3 Lighting Circuits Another source of harmonics are the lighting fixtures and electric machines in Table 1-2 ...
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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 that rotates the dc motor. The DC machines are classified into two types such as DC generator as well as DC motor. DC Machine
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Working Principle : These machines work on principle of Faraday's Law ofElectromagnetic Induction. Whenever the change of flux over the coil (or) the moving coil linked with flux produces an induced emf in the coil. ( Eg. Generator, Transformer) When the two flux lines are interacted, a force isdeveloped. ( Eg. Motor, Meters, etc.)
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nent magnets in synchronous machines are restricted to those with ratings much lower than large turbine-driven generators, which is the subject of this book. Turbine-driven generators (for short: turbogenerators) take advantage of the fact that magnetic fields can be created by the flow of electric currents in conductors. See Figure 1.3. NS
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The steam system collects and controls the steam produced in the boiler. Steam is directed through a piping system to the point of use. Throughout the system, steam pressure is regulated using valves and checked with steam pressure gauges. The fuel system includes all equipment used to provide fuel to generate the necessary heat.
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Hydraulic system vertical roller mill operation. Mar 25, 2015· Hydraulic system vertical roller mill operation 1. The working principle of the hydraulic system vertical roller mill The hydraulic system ofvertical mill is an important system, the main function ofthe hydraulic system is to break the grinding roller, which is when the internal grinding cavity wear parts wear, can stop open on ...
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In electrical engineering, electric machine is a general term for machines using electromagnetic forces, such as electric motors, electric generators, and others.They are electromechanical energy converters: an electric motor converts electricity to mechanical power while an electric generator converts mechanical power to electricity. The moving parts in a machine can be rotating (rotating ...
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The common ones we have are drying boxes, rice steaming carts, electric ovens, etc. The heating devices of these appliances are all-electric heating tubes. From the medium, it is divided into two categories: heating the air and heating the liquid. Their working principle is the same, but the heat dissipation method is different. 2. Working ...
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Working Principle and Operation of BLDC Motor BLDC motor works on the principle similar to that of a conventional DC motor, i.e., the Lorentz force law which states that whenever a current carrying conductor placed in a magnetic field it experiences a force. As a consequence of reaction force, the magnet will experience an equal and opposite force.
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In addition to the primary 220/380 voltage conversion, the secondary coil also has a tapped voltage conversion. At the same time, there is also an adjustable iron core that is adjusted by an iron core. Electric welding machine is generally a high-power transformer, which is made by the principle of inductance.
Get priceAlternators or synchronous generators can be classified in many ways depending upon their application and design. According to application these machines are classified as-. 1. Automotive type - used in modern automobile. 2. Diesel electric locomotive type - used in diesel electric multiple units. 3.
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Electrical energy flows into the toaster from a wire plugged into the domestic electricity supply. The electric current flows through a series of thin filaments connected together but spaced widely enough apart to toast the whole bread surface. The filaments are so thin that they glow red hot when the electricity flows through them.
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Mar 17, 2022The process of electric arc welding is based on the principle that, when electric current is passed through an air gap from one electric conductor to another, then an electric arc is produced which generates a very intense and concentrated heat. The temperature of the arc between two conductors is approximately 3500 °C to 4000 °C.
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The EMF induced in an electric generator can be explained as follows − When the loop is in position-1, the generated EMF is zero because, the movement of coil sides is parallel to the magnetic flux. When the loop is in position-2, the coil sides are moving at an angle to the magnetic flux and hence, a small EMF is generated.
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Electromagnetic Crane is a kind of lifting machine that uses electromagnetic principles to carry steel articles. The main part of the electromagnetic crane is the magnet. Switch on the current, the electromagnet steel items to absorb, transport to the designated place. Cut off the current, the magnetism disappears, and the steel stuff comes down.
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They all look like a water scoop. Except for the irons of the 1920s and 1930s with enamels and lids, the rest of the irons from the Han Dynasty to the Qing Dynasty were all black without a lid. The principle of these irons is to place burning charcoal in a container, and iron the clothes underneath with a high-temperature and smooth bottom ...
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May 24, 2021The term EDM stands for Electrical Discharge Machining. You all know about conventional machines like lathe, milling, grinding, or drilling where the cutting tool is always harder than the work-piece; also the cutting tool applies the force to remove the material from the work-piece during machining.. The Electrical Discharge Machining (EDM) is an unconventional or non-traditional method of ...
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working principle of dc generator : The magnetic field may be supplied by either a permanent magnet or an electromagnet. For now, we will use a permanent magnet to describe a basic DC generator. A single conductor, shaped in the form of a loop, is positioned between the magnetic poles. As
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electric power as an input, which is being supplied through the primary and then transferred t secondary winding by induction which can be used to carry out by connecting to the output terminal the...
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Guess Paper 3: Electric Machines Fall - 2019 Past Papers. Time Allowed: 3 hours. Total Marks: 70, Passing Marks (35) Q1. Briefly define each of the following: a. Slip b. Rotor speed c. Load d. Synchronous speed e. Torque f. Shunt Motor g. Mutual Induction. Q2. (a). Briefly explain the construction and working of DC generator .
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Pebbles present How Devices Work in 3D Animation. How Stuff Works with 3D Animation and Excellent Voice Over.How Stuff Works, How Devices Work Video Series C...
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