Nptel provides elearning through online web and video courses various. A transmission line of infinite length is an interesting abstraction, but physically impossible. Nptel communication systems engineering free video lectures, courses, tutorials, classes, clips communication engineering lectures from mit, stanford communication engineering video. Uses lumped element model to derive differential equations and manipulates the equations to get telegraph equations. Experimental setup for transmission line measurements. Different types of transmission lines are mentioned.
This criterion is based on the consequence of failure and on the expected life of the equipment. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses. Sinha, department of electrical engineering,iit kharagpur. No need to write anything, everything is written in notes. Kothari, centre for energy studies, iit delhi for more. The transmission line design handbook consolidates and distills key design data from over 600 original sources. Power system generation, transmission and distribution encapsulated from earlier video prof. High voltage dc transmission video lectures, iit kanpur. For the love of physics walter lewin may 16, 2011 duration. Typical transmission lines include coaxial cable, a twowire line, a parallelplate or a wire above the conduct ing plane, and a micro strip line. Power system generation, transmission and distribution nptel. We must quickly learn some foundational material on transmission lines.
High voltage dc transmission ee 488 by nptel on iit kanpur. Ptec 500 fundamentals of overhead transmission line design. Modeling and simulation of a line inserted in a network and interacting with the behavior of other elements. A tem transmission line will operate at frequencies from dc upwards. The connecting link between the two is the rf transmission line, feeder or feed line. High voltage dc transmission free electrical engineering online course on nptel by iit kanpur s. Definition of traveling waves on transmission lines. We define the ratio of phasor line voltage and the phasor line current as the line impedance, zd, at that point seen looking toward the short circuit. Although the primary objective of a transmission line is to carry electromagnetic energy efficiently from one location to other, they find wide applications in high frequency circuit design.
Traveling waves on transmission lines travelling waves are the current and voltage waves which travel from the sending end of a transmission line to the other end. Sendingend port a a b b transmission line generator. Nptel, iit, lectures, courses, video, engineering, online. Net tutorial 10 menu strip visual basic 20082010 vb. We need transmission line theory whenever the length of a line is significant compared with a wavelength. Its sole purpose is to carry rf power from one place to another, and to do it as efficiently as possible. Most of these courses consists 40 videos and 1 hour duration each. Chapter 3 introduction to transmission lines and waveguides a transmission line is a device designed to guide electrical energy from one point to another.
Net tutorial 41 website login visual basic 20082010. Transmission lines and electromagnetic waves video. Assuming ex,t 2cos3x1015t 107x vm, calculate the wave velocity. Transmission lines and em waves online course video. Lecture 18 satellite communication nptel communication. It is used, for example, to transfer the output rf energy of a transmitter to an antenna. Protection of lines or feeder august 31, 2018 february 24, 2012 by electrical4u as the length of electrical power transmission line is generally long enough and it runs through open atmosphere, the probability of occurring fault in electrical power transmission line is much higher than that of electrical power transformers and alternators. Power system generation, transmission and distribution. Download notes,take a printout then watch nptel lecture and then go through these notes. Engineers need an overview of the important aspects contemporary applications of transmission lines.
Gate ece transmission lines and wave guides exam material. Transmission line 2 conductors 4 perunitlength parameters. Refer to the microstrip transmission line applet and design a 33 ohm microstrip. Introduction to the transmission line technical articles. Calculate the line inductancemeter and capacitance meter. Gate preparation, nptel video lecture dvd, electronicsandcommunicationengineering, electromagnetics, transmission lines, vector calculus elements, divergence. Net tutorial 1 downloading the application visual basic 20082010 vb. We are here to provides you the best study notes from best coaching like made easy, ace academy etc and lecture notes from best institutions like mit open course, iit nptel open courses and eth zurich, liverpool, cambridge, oxford, warwick, rochester, cornell, mcgill, national. Lecture series on power system generation, transmission and distribution by prof. Lecture 2introduction to transmission lines youtube.
For a single wave solution in one direction, the ratio vziz is the same everywhere on the line, and is defined as the characteristic impedance z o, which for a lossless line is a real. The transmission line is a twoport circuit used to connect a generator or transmitter signal to a receiving load over a distance. Introduction to em waves and various techniques of. Nptel provides courseware in the form of video lectures and web courses. These four parameters are uniformly distributed along the whole line. Lecture 18 satellite communication lecture series on computer networks by prof. List of nptel video lectures purchased with software. If you have watched this lecture and know what it is about, particularly what electrical engineering topics are discussed, please help us by commenting on this video with your suggested description and title. Nptel video courses pack pdf format nptel user pack.
Nptel provides elearning through online web and video courses various streams. Click on any course shown below to view the lecture videos list and syllabus of that course. Introduction and modeling of transmission line lecture 1. Excellent course helped me understand topic that i couldnt while attendinfg my college. For a normal metal, lodepends on frequency so that there is dispersion, in addition to a much greater loss. The common transmission line known as microstrip departs slightly from pure tem as the field associated with the line is shared between the substrate material and the air above, so this line is sometimes called a quasitem transmission line.
Power system generation, transmission, and distribution is the most common subject and heart core subject to electrical engineers an electric power system is a network of electrical components used to supply, transmit and use electric power. Finitelength transmission lines transmission lines. Review of all concepts from ap physics c mechanics 2020 duration. It is described in the book and in much of the literature in a highly mathematical way. Transmission lines and em waves nptel online videos. Nptel video lectures, iit video lectures online, nptel youtube lectures. The input impedance of the shortcircuited line is purely reactive.
Transmission line model timothy vismor january 23,2015 abstract this document describes an overhead transmission line model that is useful for the analysis of large scale electric power systems. Modeling, simulation and optimization of transmission lines. Comparison with normal transmission line september 25, 2003. An analytical comparative study on 1s2 transmission tower under wind and. List of nptel video lectures purchased with software national programme on technology enhanced learning. Nov 12, 2015 introduction to the transmission line november 12, 2015 by arthur anderson explanation of what a transmission line is, and the conditions under which it exists. Transmission lines are used in power distribution at low frequencies, and in communications at high frequencies. Transmissionlines parameters to develop models of transmission lines, we first need to determine the tl parameters. Consider a 3ph symmetrical line with distances bw phases all equal to d and solid conductor of radius r. Transmission lines and wave guides open circuited line. Transmission line is a linear system so make a thevenin equivalent circuit looking in from the load end vtht th r cl rth zo this holds even if the source impedance were not matched to the line impedance no such thing as impedance transformations in time domain this is because in transients situations it does not really matter. Introduction to transmission lines and waveguides a transmission line is a device designed to guide electrical energy from one point to another.
The loading coils are typically 88 millihenry coils and are installed at intervals of 6000 feet. Lecture 03 propagation constant, characteristic impedance and reflection coefficient. Singh evolution of hvdc systems, comparison of hvac and hvdc transmission systems, components of hvdc transmission system, analysis of hvdc converters, hvdc control, maloperation and protection of converters, filter design, acdc load flow and stability analysis, multiterminal hvdc, different. Structural analysis and design of steel transmission tower in.
Nptel syllabus transmission lines and em waves created date. This approach is then called the transmission line approach. All transmission lines have some finite length, and as such do not behave precisely the same as an infinite line. Description of uniform lossless transmission lines and its distributed equivalent circuit. Connections between nearby logic gates have bandwidth greater than switching speed, so no line coding is needed. Hvdc transmission pdf hvdc transmission system hvdc transmission lines siemens hvdc transmission pdf 1 2 related searches for hvdc transmission nptel nptel electrical engineering high voltage dc. King transmission line theory dover publications inc. These are the structures towerspoles that support the transmission. Design of machine elements nptel online videos, courses.
Power system generation, transmission and distribution encapsulated from earlier video. It is helpful to think of transmission lines in both their equivalent circuit form and in a distributed form. Whether it is training for power system engineers, commissioning engineers, control room operators, or field maintenance and repair personnel, siemens power academy td north america na and the consultants at siemens energy inc. Optimization of a line, according normal and transient.
Physics videos by eugene khutoryansky 615,439 views. That is, the ratio of the power transferred by the line to the power lost in it should be as large as the circumstances permit. When the switch is closed at the transmission lines starting end, voltage will not appear instantaneously at the other end. Gmdgeometric mean distance gmrgeometric mean radius how to calculate them. Gate preparation, nptel video lecture dvd, electronicsandcommunicationengineering, transmission lines andwaveguides, opencircuited line, theory of transmission lines, transmission lines theory, infinite line, wavelength, velocity of propagation, propagation velocity, waveform distortion, distortion, loading, less line loading, methods of loading, loading methods, line not. Line loading can also refer to the actual load on the transmission line, and the loading is measured. Lecture 02 equations of voltage and current on transmission line.
Electromagnetic field theory study notes handwritten. Transmission lines and waveguides ebookpptpdf download. Kothari, does not currently have a detailed description and video lecture title. Electrical energy conversion by converters, the lost history of the transistor, future electronic power distribution systems, basic strategies in power electronics, power devices, mechanical design and cooling techniques, dcdc converters, line commutated topologies, voltage source inverters, active compensation. Net tutorial 9 radio button and check box visual basic 20082010 vb. C capacitancelength fm l inductancelength hm r resistancelength wm g conductancelength. Chapter 3 introduction to transmission lines and waveguides. Transmission line steady state control voltage transmission system a. Shevgaonkar department of electrical engineering iit bombay. To get video lecture of power system, click here transmission system lec.
The circuit approach then has to be reinvestigated with inclusion of the space into the analysis. We represent as a large number of small inductors and capacitors spaced. Line coding for digital communication stanford university. Lecture 31 reflection and refraction at media interface. Electrical engineering power system dynamics and control. It features 800 equations, 220 illustrations, and 610 references. Assume we have a transmission line in which air separated the two perfect conductors. This energy will not travel through normal electrical wire without great losses. Lecture 05 lossless and low loss transmission line and vswr. Assume the impedance of the line is 50 ohm, phase constant is 20 radm and the operating frequency is 700mhz. Transmission lines and em waves usb media storage type. Main elements of a transmission line due to the economic considerations, threephase threewire overhead system is widely used for electric power transmission. Hon tat hui transmission lines basic theories nusece ee2011 28 example 1 a 100.
Transmission line parameter an electric transmission line has four parameters, namely resistance, inductance, capacitance and shunt conductance. Overhead power lines are structures that are used in electric power transmission and distribution over long distance. Introduction to power system analysis nptel electrical. Refers to designing transmission lines and designing with transmission lines. Power sys generation transmission distribution nptel. Electrical power system generation, transmission and distribution. You can also get course completion certification for some of the courses. Jan 23, 2017 line loading is the process of adding load to power transmission lines by installing the necessary equipment, such as the loading coils, in series.
Transmission line voltages x y suppose the potential difference between the two conductors of a transmission line at location z is vz then efield line integral in a plane parallel to the xy plane at the location z is independent of the contour c taken, and is related to the potential difference vz as. Gate preparation, nptel video lecture dvd, electronicsandcommunicationengineering, transmission linesandwaveguides, theory of transmission lines, transmission lines theory, infinite line, wavelength, velocity of propagation, propagation velocity, waveform distortion, distortion, loading, less line loading, methods of loading, loading methods, line not terminated in z0, z0 not. We want to use the smith chart to cut through the boring math but must. A transmission line is a wire with a uniform goemetry along its length. It establishes practical techniques for computing the series impedance and shunt admittance of arbitrary conductor con. The choice of transmission system is made by keeping in mind various factors such as reliability, efficiency and economy. Transmission lines and em waves nptel online videos, courses. Each line element has its own value, and it is not possible to concentrate or lumped them at discrete points on the line. Shevgaonkar, department of electrical engineering, iit, bombay nptel, gives 42 video lectures on the concepts of transmission lines and electromagnetic waves.
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