Training report on 4002202 kv switchyard in india design and engineering for 400kv, 220kv and 2kv switchyard a common control room is used crompton greaves limited cg, an indian multinational with manufacturing bases in 8 countries, have signed the contract in 2010 with uttar pradesh power transmission corporation ltd for construction. Regression analysis nptel online videos, courses iit. Lecture 2introduction to transmission lines youtube. Description of uniform lossless transmission lines and its distributed equivalent circuit. It is used, for example, to transfer the output rf energy. Different types of transmission lines are mentioned. In radiofrequency engineering, a transmission line is a specialized cable or other structure designed to conduct alternating current of radio frequency, that is, currents with a frequency high enough that their wave nature must be taken into account. We must quickly learn some foundational material on transmission lines. Full detail design of hvac lines up to 765kv and hvdc up to 800kv providing support to over 31 000 km of transmission lines 220kv,275kv,400kv, 533kvhvdc, 765kv 340 000 km of distribution lines 11kv, 22kv,66kv, 88kv,2kv, busy with designs for over 8. Shevgaonkar, dept of electrical engineering, iit bombay for more details. A transmission line is a twoport network connecting a generator circuit at the sending end to a load at the. Gate preparation, nptel video lecture dvd, electronicsandcommunicationengineering, electromagnetics, transmissionlines, vector calculus elements, divergence. Power system generation, transmission and distribution dvd.
Transmission lines different types of transmission line structures transmission line equations power flow in transmission lines appendix ece 303 fall 2006 farhan rana cornell university guided waves. Uses lumped element model to derive differential equations and manipulates the equations to get telegraph equations. Extra high voltage ac transmission pdf notes ehv ac pdf. Characteristics and performance of transmission lines. Perfect conductor and perfect dielectric notes simulation example. The three physical embodiments that are of interest are the twowire transmission line, the coaxial transmission and the microstrip transmission line a simple parallelplate approximation. V antenna and television set or the wire used between transmitter antenna and transmitter are known as transmission lines.
It is described in the book and in much of the literature in a highly mathematical way. Distance relays are often used in the protection of the transmission lines connected to the wind farms. The transmission line is a twoport circuit used to connect a generator or transmitter signal to a receiving load over a distance. Power stations generate alternating current ac electricity. Shevgaonkar, department of electrical engineering, iit, bombay nptel, gives 42 video lectures on the concepts of transmission lines and electromagnetic waves. Introduction to em waves and various techniques of communication. Transmission line is a conductor or conductors designed to carry electricity or an electrical signal over large distances with minimum losses and distortion. Refers to designing transmission lines and designing with transmission lines.
Transmission lines and waveguides ebookpptpdf download. Comparison with normal transmission line september 25, 2003. Jul 18, 2019 a short transmission line is defined as a transmission line with an effective length less than 80 km 50 miles, or with a voltage less than 69 kv. Full detail design of hvac lines up to 765kv and hvdc up to 800kv providing support to over 31 000 km of transmission lines 220kv,275kv,400kv, 533kvhvdc, 765kv 340 000 km of distribution lines 11kv, 22kv,66kv, 88kv,2kv, busy with designs for over 8 000km of new transmission lines to be built in next 10 years. Kothari, does not currently have a detailed description and video lecture title. Their analysis and characterization, however, is complex, interested readers are requested to consult the references given at the end of this article 4, 5. As a key enabler in the future energy system based on renewables, hvdc is truly shaping the grid of the future. Electromagnetics transmission lines exam study material. There are the following types of transmission lines. The transmission line design handbook consolidates and distills key design data from over 600 original sources.
Avery national power plant team 1451 green road ann arbor, michigan 48105 interagency agreement no. Parallel rlc tank, q series rlc networks, matching pi match, t match. Transmission line is defined as the path of carrying alternating electrical energy from source to load. Unlike medium transmission lines and long transmission lines, the line charging current is negligible, and hence the shunt capacitance can be ignored. Gate preparation, nptel video lecture dvd, electronicsandcommunicationengineering, electromagnetics, transmission lines, vector calculus elements, divergence. The characteristic parameters of the transmission line are. Shevgaonkar department of electrical engineering iit bombay.
Transmission lines a transmission line connects a generator to a load a two port network transmission lines include physical construction. Transmissionlines parameters to develop models of transmission lines, we first need to determine the tl parameters. Oak ridge associated universities oak ridge, tennessee 31 january 2 february 1978 edited by michael l. Experimental setup for transmission line measurements. Excellent course helped me understand topic that i couldnt while attendinfg my college. Example problem a 220kv, 150 mva, 60hz, threephase transmission line is 140 km long. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses. Rf systems basic architectures transmission media and reflections maximum power transfer passive rlc networks. Transmission lines, types, balance two wire, coaxial. Jan 26, 2008 lecture series on power system generation, transmission and distribution by prof.
Hvdc highvoltage direct current is a highly efficient alternative for transmitting large amounts of electricity over long distances and for special purpose applications. Their light weight and small dimension are perfect for higher frequency applications. In these cases, we can say that the transmission lines in question are electrically short, because their propagation effects are much quicker than the periods of the conducted signals. Hon tat hui transmission lines basic theories nusece ee2011 28 example 1 a 100. A short transmission line is defined as a transmission line with an effective length less than 80 km 50 miles, or with a voltage less than 69 kv. By contrast, an electrically long line is one where the propagation time is a large fraction or. Power circle diagrams drawn for either sending or receiving ends of a transmission line do not have a common centre for the voltage circles, nor are the power axes within the same semicircle. Hey dear users hope you all fell well with geclibrary 4. Introduction to transmission lines and waveguides a transmission line is a device designed to guide electrical energy from one point to another.
We want to use the smith chart to cut through the boring math but must. Nptel provides elearning through online web and video courses various streams. Distancedifferential protection of transmission lines. Nov 12, 2015 explanation of what a transmission line is, and the conditions under which it exists. Kothari, centre for energy studies, iit delhi for more details visit htt. Transmission lines are used for purposes such as connecting radio transmitters and receivers with their antennas they are then called feed. Shevgaonkar, dept of electrical engineering, iit bombay for more details on nptel visit. Transmission lines and em waves usb media storage type. Transmission line definition 11 general transmission line. Transmission lines and waveguides a transmission line is a device designed to guide electrical energy from one point to another.
Electronics transmission lines and em waves youtube. Gate ece transmission lines and wave guides exam material. It is used, for example, to transfer the output rf energy of a transmitter to an antenna. Notes for electrical power transmission and distribution eptd by dipak ranjan nayak lecture notes, notes, pdf free download, engineering notes, university notes, best pdf notes, semester, sem, year, for all, study material. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Transmission lines and em waves online course video. Uses solutions to telegraph equations to get characteristic impedance and propagation constant and looks at matched and unmatched load cases. Transmission lines and em waves nptel online videos.
Equations of voltage and current on tx line youtube. 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. This video lecture, part of the series power system generation by prof. Electrical design of overhead power transmission lines. This energy will not travel through normal electrical wire without great losses. Gate preparation, nptel video lecture dvd, electronicsandcommunicationengineering, transmission lines andwaveguides, 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. Two parallel wires coaxial cable microstrip line optical fiber waveguide very high frequencies, very low loss, expensive etc. Introduction to the transmission line technical articles. Sendingend port a a b b transmission line generator.
Gate preparation, nptel video lecture dvd, electronicsandcommunicationengineering, transmissionlinesandwaveguides, 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. If we consider an infinite lossless transmission line, we can determine the inductance l and capacitance c per unit length from geometric field considerations. Transmission lines video lecture by prof shouribrata. Power system generation, transmission and distribution dvd media storage type.
Nptel syllabus transmission lines and em waves video course 1. Strip and microstrip transmission lines are used most commonly at microwave frequency and above 40 ghz. Notes electrical power transmission and distribution e. It features 800 equations, 220 illustrations, and 610 references. The distance relay using the transmission line impedance measurement identifies the type and. There is also a possibility of confusion over the sign of reactive power when conditions at both ends of the line are estimated by means of separate diagrams.
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