drawn from a rectified voltage source with sine wave input and capacitive filtering. The current drawn is discontinuous and of short duration irrespective of the load connected to the system. Since many applications demand a DC voltage source‚ a rectifier with a capacitive filter is necessary. However‚ this results in discontinuous and short duration current spikes. When this type of current is drawn from the mains supply‚ the resulting network losses‚ the total harmonic content‚ and the radiated
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1. INTRODUCTION A supply chain is a network of facilities and distribution options that performs the functions of procurement of materials‚ transformation of these materials into intermediate and finished products‚ and the distribution of these finished products to customers. Supply chains exist in both service and manufacturing organizations‚ although the complexity of the chain may vary greatly from industry to industry and firm to firm. Supply chain management‚ then‚ is the active management
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Semiconductors are either solid or liquid material‚ able to conduct electricity at room temperature more readily than an insulator‚ but less easily than a metal. Electrical conductivity‚ which is the ability to conduct electrical current under the application of a voltage‚ has one of the widest ranges of values of any physical property of matter. Such metals as copper‚ silver‚ and aluminum are excellent conductors‚ but such insulators as diamond and glass are very poor conductors. At low temperatures
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company already had rights to the name American Appliance Company‚ Raytheon Manufacturing Company was born. (Raytheon Company‚ fundinginguniverse.com) The consumer demand for electronics was booming and the new radio-receiver power supply (gaseous rectifier)‚ which immediately allow radios to be in every household for pennies of what it cost to continuously replace batteries. (History‚ Raytheon.com) As the competition for radio-receiving tubes began to intensify Raytheon‚ mainly Laurence K‚ Marshall
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About Project Automatic Bell Ringing with Energy saver and Notice Announcement Energy is the most important factor now a days ‚ and also the conservation of energy is important because of the short fall. Simple and General Block Diagram Today due to the short we are facing the problem of light cutoff‚ with exists from 2 hours minimum to maximum of 8 hours. Due to this cutoff lot many industries
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Report On “Management practice of Rahimafrooz Electronics & Accessories Ltd”. Prepared For Sharmin Akther Lecturer Department of Business Administration East West University Prepared By Hasnat Jahan Nira (2012-2-10-229) Rino Sarker (2010-3-10-035) Kazi Kamrul abid (2012-2-10-247) Tanvir Rahman (2012-1-10-319) Section-4; Mgt101 Department of Business Administration East West University Date of Submission: 31th March‚ 2013 Department of Business Administration
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Contents 1. INTRODUCTION – HARMONIC LAOD FLOW ANALYSIS SOFTWARE 3 2. POWER SYSTEM HARMONICS 4 2.1 Concept of Power System Harmonics 4 2.1.1Fourier Series and Harmonics 4 2.1.2 Distortion Indices 6 2.1.3 Characteristics of Harmonics in Power Systems 7 2.2 HARMONIC SOURCES 8 2.3 EFFECT OF HARMONICS 9 2.3.1 Thermal losses in harmonic environment 10 2.3.2 Effects on power system equipment 10 2.3.3 Capacitor banks 10 2.3.4 Transformers 11 2.3.5 Rotating machines 11 3. HARMONIC LOAD FLOW
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help us to know the basic knowledge of Electronics. The concept of semiconductors‚ transistors‚ diodes‚ FET‚ MOSFET their working principles‚ construction and working model. To know about the a.c to dc converting circuits like half wave‚ full wave rectifiers circuits. Also the filter operation of ripples using various types of filter circuits. The various types of transducer working‚ construction and uses will be discussed briefly and moving coil and moving iron instruments‚ thermistors‚ thermocouple
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A MAJOR PROJECT ON CELL PHONE BASED VOTING MACHINE SUBMITTED IN THE PARTIAL FULFILLMENT OF REQUIRMENT FOR THE AWARD OF THE DEGREE OF BACHELOR OF TECHNOLOGY IN ELECTRONICS & COMMUNICATION ENGG. FROM KURUKSHETRA UNIVERSITY‚KURUKSHETRA SUBMITTED BY: GUIDED BY: NIKHIL (1705429) Prof. G.C. Lall HEMANT KUMAR (1705433) CO-GUIDED BY: PRIYANSHU CHAUHAN (1705439) Asstt. Prof. Vijay Lamba DEPTT. OF ELECTRONICS & COMMUNICATION ENGINEERING HARYANA COLLEGE OF TECHNOLOGY
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SUPER CONDUCTORS Superconductivity is an electrical resistance[->0] of exactly zero which occurs in certain materials[->1]below a characteristic temperature[->2]. It was discovered by Heike Kamerlingh Onnes[->3] in 1911. Likeferromagnetism[->4] and atomic spectral lines[->5]‚ superconductivity is a quantum mechanical[->6]phenomenon. It is also characterized by a phenomenon called the Meissner effect[->7]‚ the ejection of any sufficiently weak magnetic field from the interior of the superconductor
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