Chapter I I. Introduction Power electronics converters can be found wherever there is a need to change voltage‚ current of frequency of electric power. The power range of these converters is forming some mill watts (as in mobile phone) to thousands of megawatts in an HVDC transmission system. With classical electronics‚ electrical currents‚ and voltage are used to carry information‚ where as with power electronics‚ they carry power electronics becomes the efficiency An inverter converts DC
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PHYSICS PROJECT MADE BY: 39 AIM To investigate the relation between the ratio of 1. Input and Output voltage. 2. Number of turnings in the secondary coil and primary coil of a self made transformer. Certificate This is to certify that this project is an authenticated and benefited work of _______________of class XII-A of K.V.‚ Tagore Garden‚ New Delhi. During the course of the project‚ I found her hardworking with good understanding and a strong urge to learn this work to be useful
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Technological Institute of the Philippines 938 Aurora Boulevard Cubao Quezon City Electrical Engineering Department OPEN AND SHORT CIRCUIT TEST IN TRANSFORMER EXPERIMENT NO.2 Submitted By: Name: Delina‚ Jherrol A. Signature:______________________ Submitted To: ENGR. Datu Amil Hussien O. Asakil Instructor Date performed: April 16‚ 2013 Date submitted: April 18‚ 2013 SCHEMATIC DIAGRAM: Open Circuit Test Short Circuit Test DATA AND RESULT: Open Circuit Test
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1964 in the State of Kerala‚ India. It is fully owned by the State government The company is engaged in the production of electrical equipment and machinery‚ in the areas such as generation ‚ transmission‚ distribution and utilisation of electric power . KEL has five manufacturing units located in various districts of the state at Kollam‚ Palakkad‚ Ernakulam‚ Kasargod and Malappuram. The corporate office of the KEL is situated at Panambilly Nagar ‚ Cochin. The company has a wide range of regional
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LOSSES HOW TO REDUCE THEM AND WHY? KPT-OIPT 013E‚ Published 02.2000. Generally‚ there is a simplified understanding that the socalled load losses in a transformer (load losses‚ PL ) depend on the ohmic resistance of the windings. This is only partly true‚ as the losses arising from magnetic leakage flux in various metal parts of a transformer constitute a significant part of the total losses. This component of total losses is called stray (additional) loss (Ps ). In addition‚ experts distinguish
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ncontAUTOMATIC POWER FACTOR CORRECTION BY MICROCONTROLLER 8051 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Bachelor of Technology in Electrical Engineering By SATYASURANJEET BEHERA SIBASIS MOHAPATRA MONALISA BISOI Department of Electrical Engineering National Institute of Technology Rourkela 2007 AUTOMATIC POWER FACTOR CORRECTION BY MICROCONTROLLER 8051 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Bachelor of
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significantly to global warming. This term refers to the measured increase in the Earth’s surface temperature since the late 19th century and the environmental effects of this change. The primary goal of developing green sources of energy is to generate power while minimizing both waste and pollution‚ to thereby reduce the impact of energy production on the environment. Scientists who advocate the use of green energy say that using such sources will reduce the rate at which climate change occurs‚ although
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Console is the section of the imaging system that most Technologists are familiar with. It is the Primary side of the main circuit and it includes the incoming current‚ the exposure switch‚ the autotransformer and the primary winding for the step up transformer. Through the Control Console‚ the tech is able to control the x-ray tube current and the voltage so that the useful x-ray beam that reaches the patient has the right quantity‚ or the intensity of the beam and is expressed in mR/mAs‚ and the right
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need for selecting the different voltages used for different parts of the generation‚ transmission and distribution systems drawn for Qu.5. Back in the 1800’s Thomas Edison had a vision to power the whole of New York using DC (direct current) that he developed‚ this idea was brilliant‚ but had one set back. A power station was needed every mile due to D.C. only flowing in one direction. This wasn’t a very practical form of electricity or cost effective‚ another idea or form of electricity was needed
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A transformer is a static electrical device that transfers energy by inductive coupling between its winding circuits. A varying current in the primary winding creates a varying magnetic flux in the transformer’s core and thus a varying magnetic flux through the secondary winding. This varying magnetic flux induces a varying electromotive force (EMF)‚ or "voltage"‚ in the secondary winding In electrical engineering‚ two conductors are referred to as mutual-inductively coupled or magnetically coupled [1] when
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