Superconductivity is the set of physical properties observed in certain materials, wherein electrical resistance vanishes and from which magnetic flux fields are expelled. Surge current protection using superconductors 23 page link. Surge current protection using superconductors the recent growth of power circuit capacities has caused fault currents to. Any material exhibiting these properties is a superconductor. Department of electrical engineering federal polytechnic bida, niger state. Superconductors have electronic and magnetic properties. A superconductor can be type i, meaning it has a single critical field, above which all superconductivity is lost and below which the magnetic field is completely expelled from the superconductor. Electrical and chemical diagnostics of transformer insulation. Superconductivity is observed in a large variety of materials but, remarkably, not in some of the best normal conductors like. Surge protection using superconductors the recent growth of power circuit capacities has caused fault currents to increase. Surge protection using superconductors powerpoint presentation. What is the persistent current in the superconductors. Download the seminar report for surge current protection.
Download presentation note the pptpdf document surge protection using superconductors is the property of its rightful owner. Surge current protection using superconductors full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details. Critical current superconductivity the minimum current that can be passed in a specimen without destroying its superconductivity is called the critical current. Here we discussed the use of superconductor as pr id. Superconductors enable a variety of applications to aid our aging and heavily burdened electric power infrastructure for example, in generators, transformers, underground cables, synchronous condensers and fault current. Get robotic monitoring of power systems seminar report and ppt in pdf and doc. Surge current protection using superconductors seminars.
Seminar on surge current protection using superconductor ppt presentation summary. Permission is granted to download and print the materials on this web site for personal, noncommercial use only, and to display it on your personal computer provided you do not modify the materials and that you. Since the protection of power systems from the fault currents is very important, it is needed to develop a fault. Fast quasistatic capacitance extraction using csurf. A techie, blogger, web designer, programmer by passion who aspires to learn new technologies every day. This post lists technical paper presentation topics for electrical engineering. Abstract the recent growth of power circuit capacities has caused fault currents to increase. Electrical and electronics, free abstract for seminars, full seminr reports, latest seminar topcis, reports, seminar, seminar topics, surge current protection, surge current protection using superconductors. May 25, 2014 ppt on superconducting fault current limiters application and effects in power system. Feb 21, 2020 explore surge current protection using superconductors with free download of seminar report and ppt in pdf and doc format. The superconducting fault current limiter sfcl is one. Fault current the short ckt current can exceed by a factor of 100 of the nominal current. Surge current protection using superconductor ppt size.
As a result an equilibrium position is established in which the angular moments of the permanent current and of the torsion thread balance each other. Enduse energy efficiency potential lightning protection using lfam 22 aluminium alloy conductors halbach array surge current protection using superconductors 23 magnetic levitation fast quasistatic capacitance extraction using csurf. Surge current protection using superconductor ppt slideshare. Seminar on surge current protection using superconductors department of electrical engineering submitted to. Robotic monitoring of power systems seminar report and. Latest technical seminar topics for engineering students. Surge current protection using superconductor ppt 1. The recent growth of power circuit capacities has caused fault currents to increase. Feb 12, 2016 get robotic monitoring of power systems seminar report and ppt in pdf and doc. Ppt on superconducting fault current limiters application and effects in power system. Superconductors can be divided into two classes according to how this breakdown occurs. Superconductors conduct electricity, offering zero resistance.
Such properties of superconductors are listed below zero electric resistance infinite conductivity meissner effect. The most important result is the anomalous behavior of the upper critical. Surge current protection using superconductors 23 posted by. Download seminar report for surge current protection using. Download full seminar topics in electrical engineering in doc, pdf or ppt format. Since the protection of power systems from the fault currents is very important, it is needed to develop a fault current limiter. This equilibrium position can be observed very sensitively using a light beam. The short ckt current can exceed by a factor of 100 of the nominal current. Zero impedanceat normal operation high impedanceat faults provide detection and. The temperature at which the transition took place was called the critical temperature tc.
Surge current protection using superconductors seminar. Lightning protection zones modern surge arresters bicmos technology 21 electric utility industry. Fault current limiters electric motors and generators article on superconductor use in rotors 4. Groups around the world continue to improve the so called lowtemperature superconductors lts and work to lower the manufacturing costs for devices. Comments off on surge current protection using superconductors. Surge current protection using superconductor powerpoint presentation made by. Accordingly, it examines the major present and potential applications of superconductors in seven different sectors.
The cross section of super conductor is such as to let it stay below critical current density, since its receptivity is zero in this regime. Surge current protection using super conductors report scribd. Current leads are designed to transfer as little heat as possible from the outside to the coolant. A free powerpoint ppt presentation displayed as a flash slide show on id. Mar 26, 2014 seminar on surge current protection using superconductor submitted to. The superconducting fault current limiter sfcl is one method to solve the conflict between the rated value. A fault current limiter is required to assure 1 rapid reaction to fault currents, 2 how impedance in normal operation and 3 large impedance during fault conditions. The term includes superconducting, solidstate and inductive devices. There are many criteria by which superconductors are classified. Since in superconductors as the resistance is zero, the amount of current flowing remains same. That is, they have a negative susceptibility, and acquire a polarization. Transport vehicles such as trains can be made to float on strong superconducting magnets, virtually eliminating friction between the train and its tracks. Surge current protection using superconductor free download as powerpoint presentation.
Any decay of the permanent current within the rings would be indicated by the light. Oct 15, 2015 surge current protection using superconductor ppt 1. Robotic monitoring of power systems seminar report and ppt. Record strong minimagnet created using superconductive tape 0619 using ai to evolve improved superconductors 052419 us navy files patent for room temperature superconductor 022219 lanthanumhydride edges toward room temperature 011519. Surge current protection using super conductors report free download as word doc.
The current state of the art are cables using thin films of bscco. It has been 8 years since i have been publishing articles. The research is still going on to understand and utilise these extraordinary properties of superconductors in various fields of technology. Persistent current is one which flows in superconductors without any loss in its value for long time. Technical paper presentation topics for electrical engineering. The swissswedish company abb was the first to connect a superconducting transformer to a utility power network in march of 1997. Surge current protection using superconductors seminars for you. Surge current protection using superconductors the recent growth of power circuit capacities has caused fault currents to increase. Latest technical seminar topics for engineering students are very useful. Produce mechanical and thermal stress proportional to square of the current.
Electrical and electronics engineering seminar topics, ppt. Jan 19, 2012 current leads are designed to transfer as little heat as possible from the outside to the coolant. Surge current protection using superconductor ppt download. A fault current limiter is required to assure 1 rapid reaction to fault currents, 2 how impedance in normal. In normal operation, the current and its magnetic field can vary but temperature is held constant. Fault current controller, employing hts superconductors. Electrical and electronics engineering seminar topics, ppt 2016. Abb also recently announced the development of a 6. Superconducting fault current limiter sfcl ppt youtube. Explore surge current protection using superconductors with free download of seminar report and ppt in pdf and doc format. We hope that our seminar topics are latest and best ideas for engineering students. Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even down to near absolute zero, a superconductor has a. Most pure elemental superconductors, except niobium, technetium, vanadium and carbon nanotubes, are type i. Surge current protection using super conductors free download as powerpoint presentation.
The current world record for such a cable in a vacuum tube is several kilometers but after some distance you need a small building along the cable to cool the liquid nitrogen inside the cable. A free powerpoint ppt presentation displayed as a flash slide show on. Surge current protection using superconductor ppt mahesh. A fault current limiter fcl, or fault current controller fcc, is a device which limits the prospective fault current when a fault occurs e. Practical issues with superconductivity physics stack. View and download powerpoint presentations on superconductivity ppt.
Download surge current protection using superconductors seminar report, ppt, pdf, topics, abstracts, full documentation, full power point presentaion. Uses for superconductors magneticlevitation is an application where superconductors perform extremely well. Surge current protection using superconductors full seminar. Epri 2011 nexans superconductors endesa vse eccoflow nominal voltage 16. May 15, 2018 the superconducting material shows some extraordinary properties which make them very important for modern technology. Critical current superconductivity critical current of. Sfcl is innovative electric equipment which has the capability to reduce fault current level within the first cycle of fault. Surge current protection using superconductors electrical engineering seminar topics latest abstract for eee here we have 499 topics for seminars electrical and electronics engineering this include certain latest technologies also. Applications of superconductivity introduction the purpose of this chapter is to assess the significance of hightemperature superconductors hts to the u. Surge current protection using superconductors seminar report. Write to us if you need further details on any topic. Find powerpoint presentations and slides using the power of, find free presentations research about superconductivity ppt.