...Future 5 5. Transmission and Distribution – 6 5.1 National Power Grid 7 5.2 Losses in T & D 7 5.3 Measures that can be taken to reduce losses are: 8 5.3.1 For Technical losses: 8 5.3.2 For Commercial losses: 8 6. India’s energy mix – Future investment required 8 7. Environmental issues 9 8. Sources of power 9 8.1 Coal 9 8.2 Natural Gas 10 8.3 Hydro power 10 8.4 Nuclear sources of power 10 8.5 Renewable sources of power 11 8.5.1 Solar power 11 8.5.2 Wind power 11 8.5.3 Biomass power 11 9. Regulatory changes 12 10. Disinvestment & consolidation 12 11. Challenges: 13 Appendix: 14 Appendix I 14 Appendix II 14 Appendix III 15 Appendix IV 16 Appendix V 16 Appendix VI 16 Appendix VII 17 References: 18 Executive Summary Availability of power is one of the important ingredients for industrial growth. It is an important infrastructure facility without which any industrial activity cannot be thought of in modern times. In the report, the main parameter used is the increase in the demand of power in India. Assuming a growth of 8%, the projected energy demand will be about 3600 billion kWh, almost 5 times the current demand. Based on the demand growth and the energy mix proposed in the next five year plan and assuming private sector participation of 40%, it is found that a capital of Rs 2 lakh crores needs to be raised through capital and money markets by private sector in India. An equal amount of money needs to be invested for the transmission & distribution...
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...power generation, distribution, or both within a specified area. For example, Gujarat Industrial Power Corporation is only into generation and Central Electricity Supply Corporation (in Orissa) is confined to distribution, whereas Bombay Suburban Electric Supply Limited (BSES) and Tata Electric Company (TEC) are involved both in generation and distribution. The interdependence among these players in the electricity sector can be gauged from the fact that their performances are closely linked. The industry value-chain is captured by Chart-1 below. (PGCIL is the Power Grid Corporation of India Limited.) Chart - 1 Some instances of such interdependence are easy to find. High generation tariffs affects the performance of SEBs and transmission...
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...across miles of power lines. Electricity is generated in a thermal power plant, hydroelectric power plant, and nuclear power plant, etc. This electricity is then supplied to a transmission substation near the generating plant. In the transmission substation the voltage is increased substantially using step up transformers. The voltage is increased to reduce the transmission losses over long distances. This electricity then is supplied to a power substation where it is stepped down using step down transformers and then supplied to a distribution grid. In the distribution grid there are additional transformers and voltage is further reduced for distributing further down the grid. From here the electricity is supplied to step down transformers near residential quarters that step down the voltage to 110/220 Volts as per each country's requirement. The power is produced using a three-phase generator that takes some kind of mechanical energy and generates three-phase power. The three-phase power leaves the generator and enters a transmission substation at the power plant. This substation uses large transformers to convert the generator's voltage (which is at the thousands of volts level) up to extremely high voltages for long-distance transmission on the transmission grid. You can see at the back several three-wire towers leaving the substation. Typical voltages for long distance transmission are in the range of 155,000 to 765,000 volts in order to reduce line losses. A typical maximum...
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...Ganguly along with my fellow batchmates who provided valuable support and co-operation during the execution of project. Introduction The basic function of a transmission system is to transfer electrical power from one place to another or from one network to another network. A transmission system includes the terminal substations, transmission lines and intermediate substations. Transmission systems are required for ● Transfer of bulk power from large group of generating stations upto the main transmission network ● System interconnection ● Transfer of power from main transmission from the main transmission network to secondary substations The increasing need of transmitting greater and greater amounts of power over long distances has led to a continuous increase in transmission voltages. As a rule, larger the amount of power to be transmitted, higher is the requirement of transmission voltages. In India, the transmission voltages in use are 33, 66, 110, 132, 220 & 400 kV . The next higher voltage of 765/800kV has been selected for transmission of huge blocks of power from generating stations to load centres. Necessity of EHV Transmission Reduction of Electric Losses , increase in Transmission efficiency , inprovement of Voltage Regulation and reduction in Conductor Material requirement For transmission of given amount of power over a given distance through...
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...travel long distances through the utilization of electrical power systems. Electrical Power Systems consists of mainly of generating stations, transmission lines and distribution systems. From the generating stations, different types of energy are converted to electrical energy (high voltage) and then transported to the distribution systems through the transmission lines, where the voltages to be delivered to the consumers by the distribution companies are lowered. There are two designs for distribution systems, one is the Overhead Distribution System (ODS) and the other is the Underground Distribution System (UDS). Each of these has its own advantages and disadvantages. In the earlier century, ODS has been commonly used by distribution companies. It is reliable, low-cost, easily maintained and is an established method to transport bulk electricity across long distances. ODS are the lowest-cost method transmitting electrical power because most of the insulation is provided by air. The disadvantage is that ODS is more prone and subjected to interruptions due to natural causes such as lightning and storms and other failure due to short circuits and line breakage. It is also unpleasant to the eye especially to urban areas. Moreover, the voltage drop in ODS is considerably high. This puts the use of UDS into consideration. In UDS, power lines are buried directly in the ground. Because it is underground, it promotes safety in subjected area; also, it is less subjected to damage from...
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...ISSN 2090-4304 Journal of Basic and Applied Scientific Research www.textroad.com A Comparative Study of Wireless Power Transmission Techniques A. Mahmood1, A. Ismail1, Z. Zaman1, H. Fakhar1, Z. Najam1, M. S. Hasan1, S. H. Ahmed3 1 COMSATS Institute of Information Technology, Islamabad, Pakistan 2 University of Alberta, Alberta, Canada 3 SCSE, Kyungpook National University, Korea Received: November 2 2013 Accepted: December 2 2013 ABSTRACT The advent of various wireless technologies have revolutionized the communication infrastructure and consequently changed the entire world into a global village. Use of wireless technology has also been made for transmission of electric power wirelessly. It can reduce heavy line losses; increase the portability of power systems. It also integrates the communication technologies and electric power to the same platform. This paper presents a comprehensive review and detailed analysis of various techniques used for wireless power transmission. Role of wireless power transmission in applications of smart grid like electric vehicle charging has also been covered. Feasibility, implementations, operations, results and comparison among different methods have been elaborated in order to identify the favourable and economical method for low power and small distance applications. KEYWORDS: Power systems, Wireless power transmission, Magnetic resonance. INTRODUCTION Role of electricity in modern machine era is considered like circulation of blood in human...
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...The Gazette of India EXTRAORDINARY PART I - Section 1 PUBLISHED BY AUTHORITY Ministry of Power New Delhi, Dated the 6th January, 2006 RESOLUTION No.23/2/2005-R&R(Vol.III) TARIFF POLICY 1.0 INTRODUCTION 1.1. In compliance with section 3 of the Electricity Act 2003 the Central Government hereby notifies the Tariff policy in continuation of the National Electricity Policy (NEP) notified on 12th February 2005. 1.2. The National Electricity Policy has set the goal of adding new generation capacity of more than one lakh MW during the 10th and 11th Plan periods to have per capita availability of over 1000 units of electricity per year and to not only eliminate energy and peaking shortages but to also have a spinning reserve of 5% in the system. Development of the power sector has also to meet the challenge of providing access for electricity to all households in next five years. 1.3. It is therefore essential to attract adequate investments in the power sector by providing appropriate return on investment as budgetary resources of the Central and State Governments are incapable of providing the requisite funds. It is equally necessary to ensure availability of electricity to different categories of consumers at reasonable rates for achieving the objectives of rapid economic development of the country and improvement in the living standards of the people. 1.4. Balancing the requirement of attracting adequate investments to the sector and that of ensuring reasonability of user charges...
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...Learn Making sense out of complex Pro A/V and Broadcast technologies. edu Guide An educational resource published by Communications Specialties, Inc.. Introduction to Fiber Optics The equipment, tools and cabling that comprise a fiber optic link, how they work and their advantages over traditional copper. commspecial.com edu Guide Communications Specialties, Inc. is committed to increased education and knowledge in the Pro A/V and Broadcast industries. We hope that you enjoy reading – and learning! – with our eduGuide series of educational resources. For additional information on these and other industry related technologies, please visit us at commspecial.com today! ©2009 Communications Specialties, Inc. All Rights Reserved. Specifications, claims or other product information contained in this document are subject to change without notice. This document may not be reproduced, in whole or in part, without the express written consent of Communications Specialties, Inc., Fiberlink, Pure Digital Fiberlink, the starburst logo, Scan Do and Deuce are registered trademarks of Communications Specialties, Inc. CSI and the triangle designs are trademarks of Communications Specialties, Inc. October 8, 2009 Table of Contents A Brief Introduction ............................................................................................................ 2 Advantages of Fiber Optic Systems ......................................................................
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...Wireless transmission is ideal in cases where instantaneous or continuous energy transfer is needed, but interconnecting wires are inconvenient, hazardous, or impossible. The tangle of cables and plugs needed to recharge today's electronic gadgets could soon be a thing of the past. The concept exploits century-old physics and could work over distances of many metres. Consumers desire a simple universal solution that frees them from the hassles of plug-in chargers and adaptors."Wireless power technology has the potential to deliver on all of these needs."However, transferring the power is the important part of the solution. With wireless energy transfer, the efficiency is a more critical parameter and this creates important differences from the wireless data transmission technologies. To avoid the conflicts like recharging and carrying its appliances of electrical and electronic devices, wireless power transmission is desirable. Wireless power transmission was originally proposed to avoid long distance electrical distribution based mainly on copper cables. This can be achieved by using microwave beams and the rectifying antenna, which can receive electromagnetic radiation and convert it efficiently to DC electricity. Researchers have developed several techniques for moving electricity over long distances without wires. Some exist only as theories or prototypes, but others are already in use. Magnetic resonance was found a promising means of electricity transfer because magnetic...
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...(PR). Therefore a Flexible AC Transmission System (FACTS) Controller may be used to supply the additional power (PR – PL) from the renewable energy source to the grid. On the other hand if the power consumed by the load (PL) is greater than the power generated from the renewable energy source (PR) therefore the same FACTS controller may be used to absorb the additional power (PR – PL) from the grid to the load. In this case the FACTS controller must allow bi-directional power flow. If all the active houses are connected to the grid in the same way (proposed way), the active houses that generate more power than the load can be supplied to the active houses that generate less power than the load. Therefore a suitable FACTS controller should be designed in such a way that it can control the power flow in both directions. The idea is illustrated in the following figure. 1.2 Objectives: • Study on different FACTS controllers • Study on different renewable energy sources • Study on different energy storage devices • Study on different types of inverters • Implementation of all these resources in a smart grid Chapter 02 2.1 Introduction: The operation of an AC power transmission line is generally constrained by limitations of one or more parameters (such as line...
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...Power Systems 1 Chandan Kumar Ghosh dhuls28kilo@yahoo.com B.E. (KU), 1998 M.E. (Electrical Power), NORAD/ KU, 2006 1998-2000 Lotus Energy 2000- Present Nepal Electricity Authority Distribution and Consumer Services 4/4/2007 1 Introduction OBJECTIVE OF COEG 303 Introduce Power Systems Modeling a Transmission Line Introduce a Distribution System Introduce Insulation requirements Mechanical Design of Transmission Line High Voltage DC Transmission Cables Corona Discharges 4/4/2007 2 Introduction to Power Systems Electrical power is a little bit like the air you breathe: You don't really think about it until it is missing. You use it for heating, cooling, cooking, refrigeration, light, sound, computation, entertainment... Without it, life can get somewhat cumbersome. 4/4/2007 3 Generation Transmission and Distribution Power travels from the power plant to your house through an amazing system called the power distribution grid. 4/4/2007 4 Generation The Power Plant Electrical power starts at the power plant. In almost all cases, the power plant consists of a spinning electrical generator. Mechanical Force: a water wheel in a hydropower a large diesel engine a gas turbine a steam turbine by burning coal, oil or natural gas or nuclear No matter what it is that spins the generator, commercial electrical generators of any size generate what is called 3-phase AC power. To understand 3-phase AC power, it is helpful to understand single-phase power first. ...
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...Table of Contents 1 Introduction 3 1.1 Working Principle 3 1.1.1 Mutual Inductance 3 1.1.2 Ideal Transformer 3 1.1.3 Real Transformer 3 1.2 Main Types 3 1.2.1 Step-up Transformer 3 1.2.2 Step-down Transformer 3 1.3 Transformer Ratios 3 1.3.1 Turn Ratio 3 1.3.2 Voltage Ratio 3 1.3.3 Power Ratio 3 1.4 Uses and Applications 3 2 History of Transformer 3 2.1 A.C or D.C 3 2.2 Need of Transformer 3 2.3 Invention of Transformer 3 2.4 First Commercial Use 3 2.5 Transformer Development Timeline [13] 3 1830s 3 1836 3 1876 3 1878 -1883 3 1881 3 1880-1882 3 1882 - 3 1884 3 1884 3 1885 3 1885 3 1886 3 Later 1880s 3 1889 3 1891 3 1891 3 1880s - Today 3 3 Working of Transformer 3 3.1 Construction 3 3.1.1 Core Construction 3 3.1.2 Winding Arrangements 3 3.2 Working 3 4 Types of Transformer 3 4.1 On the Basis of Construction 3 4.1.1 Core Type Transformer 3 4.1.2 Shell Type Transformer 4 4.2 On the Basis Their Purpose 5 4.2.1 Step up Transformer 5 4.2.2 Step down Transformer 6 On the Basis of Type of Supply 7 References: 8 1 Introduction A transformer is an electrical device that transfers electrical energy from one circuit to another circuit using inductively coupled conductors. In other words by putting two coils of wire close together while not touching, the magnetic field from the first coil called the primary winding effects the other coil (called the secondary coil). This effect is called...
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...There are three parts to this assignment relating to each lecture in Module 1. Part 1: Layering and the Internet Model Imagine that a technology organization has been in business for decades, and that the organization developed its own method of computer-to-computer communication. Because this method of communication only occurs within this organization, it is not layered, but rather is designed to operate as quickly and efficiently as possible on the custom hardware by using the least amount of overhead possible. The organization continues to create its own communication hardware and software that works with modern computers, but the CTO of the organization is considering replacing this custom communication solution with the adoption of the Internet Model in use today, along with its technologies. With this scenario in mind, address each of the topics below. Topic 1: The Advantages of a Layered Model Identify and describe the advantages that a layered solution would offer the technology organization when compared to its non-layered solution. Advantages : The advantage of implementing layered model in technology organization will be : 1. They can communicate with the other organizations and can provide the information/presence about their business on internet too. 2. By implementing layered module… changes at one layer will not affect hardware /software at the other layers. Vendors can develop hardware and software to provide the functions of...
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...SRATEGIC MEMO INTERIM REPORT ON KARNATAKA POWER TRANSMISSION CORPORATION LIMITED (KPTCL) By, Suma Ragupathi (10050) Sunil M (10051) Swathy Swaminathan (10053) Thirtha (10055) Gunjan Modi (10078) Sarita G. Krishnan (10103) GROUP B2 : NAPOLEON | TABLE OF CONTENTS 1. HISTORY 3 1.1 Power Generation and Transmission in Karnataka State 3 1.2 Re-structuring of KEB into KPTCL 4 2. VISION AND MISSION 5 2.1 Vision 5 2.2 Mission 5 3. ENVIRONMENT ANALYSIS 6 3.1 Political situation in Karnataka 6 3.2 Economic situation in Karnataka 6 3.3 Social situation in Karnataka 7 3.4 Technological innovations in power sector 7 4. INDUSTRY ANALYSIS 9 4.1 Current Scenario 9 4.2 Challenges and Risks 9 5. SWOT ANALYSIS of KPTCL 11 5.1 Strengths 11 5.2 Weaknesses: 11 5.3 Opportunities 12 5.4 Threats 12 6. KPTCL’s CURRENT SITUATION 13 6.1 Demand-Supply Status 13 6.2 Present Karnataka State Power Scenario 14 6.3 Financial Position of ESCOMS 15 6.4 Energy Sufficiency – Capacity Addition 15 7. DELIVERABLES FOR THE FULL REPORT 16 KARNATAKA POWER TRANSMISSION CORPORATION LIMITED (KPTCL) 1. HISTORY 1.1 Power Generation and Transmission in Karnataka State The erstwhile Mysore State had the enviable and glorious position of...
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...at right angles to the plane of the array? A. Broadside array B. End-fire array C. Turnstile array D. Log-periodic array 76. The directivity pattern of an isotropic radiator is A. a figure-8 B. a sphere C. a unidirectional cardioid D. a parabola 77. An isotropic radiator is A. in the northern hemisphere B. an antenna high enough in the air C. an antenna whose directive pattern is substantially incredible D. a hypothetical, omnidirectional antenna 78. The purpose of stacking elements on an antenna. A. Sharper directional pattern B. increased gain C. Improved bandpass D. All of these 79. The advantage of using top loading in a shortened HF vertical antenna is A. lower quality factor B. greater structural strength C. higher losses D. improved radiation efficiency 80. Where are the voltage nodes in a half-wave antenna? A. At the ends B. Three-quarters of the way from the feed point toward the end C. One-half of the way from the feed point toward the end D. At the feed point 81. A theoretical reference antenna that provides a comparison for antenna measurements. A. Marconi antenna B. Isotropic radiator C. Yagi-Uda...
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