The superconductor fault current limiters offers efficient advantages to power systems and opens up a major application for. The term is generally applied to superconducting devices, whereas nonsuperconducting devices such as simple inductors or variable resistors are typically termed fault current controllers. Jun 08, 2012 surge current protection using superconductor a fault current limiter fcl is a device which limits the prospective fault current when a fault occurs eg in a power transmission network. The aim of this study was to investigate the effect gender has on the relationship between workrelated psychosocial environment and work absence due to sickness. Download seminar report for surge current protection using. Visit here to get thousands of technical paper presentation topics for electrical engineering and other interesting latest technical topics. Sfcl have zero impedance under the normal condi tion and large impedance under fault condition. Surge current protection using superconductors 160.
This technology is showing up in many cell phone receiver. The simulations performed prove the method effectiveness, as well as the possibility of building the fcl with commercially available components. Free download complete engineering seminar surge current protection using superconductors seminar report pdf. The temperature at which the transition took place was called the critical temperature tc. Transport vehicles such as trains can be made to float on strong superconducting magnets, virtually eliminating friction between the train and its tracks. Ametherm manufactures a special type of ntc thermistor designed specifically for inrush current protection called inrush current limiters. The shieldedcore limiter works only with ac currents and is much larger and. Pdf superconducting fault current limiter application in a. Download full seminar report on electrical engineering in doc, pdf or ppt format. The electric power grid is among the greatest engineering achievements of the 20th century. Scribd is the worlds largest social reading and publishing site.
Abstract the superconducting fault current limiter sfcls concept proposes two types of superconducting materials. Uses for superconductors magneticlevitation is an application where superconductors perform extremely well. The authors describe superconducting fault current limiters scfcl which may. Surge current protection using superconductor ppt size. Effects of a fluxcoupling type superconducting fault. Jan 19, 2012 surge current protection using superconductor seminar reports and ppt topics. Fault current the short ckt current can exceed by a factor of 100 of the nominal current. Oct 15, 2015 surge current protection using superconductor ppt 1. Pdf powerdense, lowvoltage marine electrical systems have the potential for extremely high fault currents. The current persists, it does not decay because the resistance of the ring is zero. Since the protection of power systems from the fault currents is very important, it is needed to develop a fault current limiter. One includes types of compounds, namely organic superconductors, a15 compounds, magnetic superconduc.
The hts are substances that lose all resistance below temperature main tamable by liquid nitrogen. Electrical engineering seminar topics latest abstract for eee. The induced current is called the persistent current. Faultcurrentlimiters using high temperature superconductors offera solution to controlling faultcurrent levels on utility distribution and. Here well discuss the use of superconductor as protective device for surge current protection. The best conductivity is provided by using superconductors.
Mar 26, 2014 surge current protection using superconductor ppt mahesh 1. Surge protection using superconductors superconductivity. Superconducting fault current limiter sfcl is innovative electric equipment which has the capability to reduce fault. Free seminar reports, ppt presentation topics and abstract. The present invention presents an electrostatic discharge and power surge protected circuit board 10 and method for providing an electrostatic discharge and power surge protected circuit board. Surge current protection using superconductors seminar report pdf. 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. The behavior of resistic fault current limiter is largely determined by the length of the superconductor and the type of material used for it. Technical paper presentation topics for electrical engineering. The modelling was carried out using power system analysis toolbox while the simulation used. Using the stress profile questionnaire, results show that work control and influence was the major contributor of sickness absence among men. Seminar on surge current protection using superconductors department of electrical engineering submitted to. 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. Here we discussed the use of superconductor as protective device for surge current.
Other methods for surge current protection are following. Ph 318 introduction to superconductors 7 there is no magic involved. Surge current protection using superconductor ppt slideshare. In case of a fault the inrush of current and magnetic field take the super conductor into the transition region, thereby the increasing resistance limits the fault current. Surge protection using superconductors the recent growth of power circuit capacities has caused fault currents to increase.
Sfcl is innovative electric equipment which has the capability to reduce fault current level within the first cycle of fault. The following description is presented to enable one of ordinary skill in the art to make and use the invention and is provided in the context of a patent application and its requirements. Preparatory questions please visit the superconductivity chapter on the 8. We use your linkedin profile and activity data to personalize ads and to show you more relevant ads. In this paper, the simulation modelling and performance analysis of superconductor surge current protection is carried out. A transient surge protector attempts to limit the voltage supplied to an electric device by either blocking or shorting current to reduce the voltage below a safe threshold.
The term is generally applied to superconducting devices, whereas nonsuperconducting devices such as simple inductors or variable resistors are typically. Surge current protection using superconductor a fault current limiter fcl is a device which limits the prospective fault current when a fault occurs eg in a power transmission network. Abstract the recent growth of power circuit capacities has caused fault currents to increase. Vaishnavi b v, angelin suji r s, trivenishree d p, nidha nabi, sowmya g j. The most important result is the anomalous behavior of the upper critical. Surge current protection seminar report slideshare. Also explore the seminar topics paper on surge current protection using superconductors with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electrical and electronics. However, they have been easily achieved by hypress superconductorbased receiver, using a technology called rapid single flux quantum, or rsfq, integrated circuit receiver. Electrical and electronics engineering seminar topics. Superconductivity by joe khachan and stephen bosi the discovery of superconductors the phenomenon of superconductivity, in which the electrical resistance of certain materials completely vanishes at low temperatures, is one of the most interesting and sophisticated in condensed matter physics. Surge current protection using superconductors seminar. 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.
Fault current limiter is used to limit this current, it must possess. It is estimated that 90% of inrush current limiting applications use inrush current limiters. Super conductors are of two typeshigh temperature superconductors hits and low temperature superconductor lts. The term includes superconducting, solidstate and inductive devices. Circuits using inrush current limiters are easy to design and are inexpensive compared to active circuits. Surge current protection using superconductor blogger. Surge current protection using superconductors,ask latest information,abstract,report,presentation pdf,doc,ppt,surge current protection using superconductors technology discussion,surge current protection using superconductors paper presentation details. By j david manohar 08a31a0232 necessity of supercondustor damage from short circuit is constant threat in power systems all the power systems components must be designed. The short ckt current can exceed by a factor of 100 of the nominal current. Comments off on surge current protection using superconductors. The results of the performance analysis of surge current protection using superconductors were in agreement with the analysis carried out by by vibhor et al. Produce mechanical and thermal stress proportional to square of the current. Conclusion the purpose of this paper was the study of surge current protection using superconductors. Surge current protection using superconductors seminar report.
Resistors, thyristors, triacs, inductors, ntc thermistor, 23. Pdf superconducting fault current limiter application in a power. Accordingly, it examines the major present and potential applications of superconductors in seven different sectors. Surge current protection using superconductors seminars.
Electrostatic discharge protection using high temperature superconductors. Electrostatic discharge protection using high temperature. 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 super conductors report scribd. Superconducting control for surge currents ieee journals. The modelling was carried out using power system analysis toolbox while the simulation used matlab codes. Surge current protection using super conductors report free download as word doc.
Zero impedanceat normal operation high impedanceat faults provide detection and recovery of the. With respect to transformer inrush and protection, each generator is capable of. Section 3 compares the effectiveness of limiting fault current using sfcls with. Find powerpoint presentations and slides using the power of, find free presentations research about superconductivity ppt. Following are recent and previous trends of research in electrical design 12 phase capacitor a technique for online detection of shorts in fields of turbine generator rotor ac cable versus dc cable transmission for offshore wind farms act. Solar power generation i need prjct report along with ppts for these topics please respond as soon as posibleits urgent 161. Explore surge current protection using superconductors with free download of seminar report and ppt in pdf and doc format. Pdf powerdense, lowvoltage marine electrical systems have the potential for. Department of electrical engineering nnamdi azikiwe university, awka. Superconducting fault current limiter sfcls is innovative electric equipment which has the capability to reduce fault current level within the first cycle of fault cu r rent. Electrical engineering seminar topics latest abstract for eee, ec in ppt, pdf,doc. Surge current protection using superconductors 23,ask latest information,abstract,report,presentation pdf,doc,ppt, surge current protection using superconductors 23 technology discussion, surge current protection using superconductors 23 paper presentation details. A fault current limiter is required to assure 1 rapid reaction to fault currents, 2 how impedance in normal. Effects of a fluxcoupling type superconducting fault current limiter on the surge current caused by closedloop operation in a 10 kv distribution network.
Oct 27, 1998 the present invention is directed toward an improvement in esd protection for an integrated circuit structure using high temperature superconductive material. Surge current protection using superconductors the recent growth of power circuit capacities has caused fault currents to increase. Surge current protection using superconductor ppt mahesh 1. The trapped magnetic field passing through the ring is due to the current induced in the ring when the external magnetic field was turned off.
Surge current protection using super conductors report. The recent growth of power circuit capacities has caused fault currents to increase. Lts are substances that lose all receptivity close to 4k, a temperature attainable only using by using liquid helium. Pdf superconducting fault current limiter application in. Blocking is done by using inductors which inhibit a sudden change in current. Department of electrical engineering federal polytechnic bida, niger state. Superconductivity is observed in a large variety of materials but, remarkably, not in some of the best normal conductors like copper, silver and gold, except at very high pressures. Superconducting fault current limiter application in a. The present invention provides esd protection on current.
A fault current limiter fcl, or fault current controller fcc, is a device which limits the prospective fault current when a fault occurs e. Surge current protection using superconductors seminars for you. Superconductors conduct electricity, offering zero resistance below certain temperature. Effects of a fluxcoupling type superconducting fault current. Epri 2011 nexans superconductors high voltage and high current testing of complete fclsystem testing scheme. Surge current protection using superconductor ppt mahesh.
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