This paper discusses the design of a lightning protection. Fundamentals of lightning protection systems page 1 of 14 fundamentals of lightning protection systems, edition 1c september 2011. Lightning pdf professional free version download for pc. The lightning protection industry began in the united states when benjamin franklin postulated that lightning was electricity, and a metal rod could be used to carry the lightning.
When correctly installed, the recommendations on this page and in this technical note give the user the best protection from the harmful effects of lightning. A new long flashover arrester model has been developed. It offers great number of technical and economical advantages. Lightning protection using lfammy ppt free download as powerpoint presentation. Means of lightning protection of overhead power transmission. Use current division to control the dissipation of lightning strike energy on an antenna tower grounding system through multiple paths. Lightning damage is not covered under the motorola warranty. Lightning protection using lfa lightning frequency arrester a new simple, effective and inexpensive method for lightning protection of medium voltage overhead distribution line is using long flashover arresters lfa. Explore lightning protection using lfam with free download of seminar report and ppt in pdf and doc format. Lightening protection using lfam system a system of lightning protection conductors lightning rods installed on the.
It assured reliable protection of medium voltage e. Also get the seminar topic paper on lightning protection using lfa m with abstract or synopsis. Lack of design consideration for lightning protection is apparent on some systems as late as 1980. These new materials made design revisions necessary to lightning protection systems. Jan 05, 2019 17 dec explore lightning protection using lfam with free download of seminar report and ppt in pdf and doc format. Ieee std 9981996, ieee guide for direct lightning stroke. Long flashover arresters lfas were suggested and developed for lightning protection of medium voltage lines 335 kv against induced overvoltages and direct lightning strokes. Lightning protection using lfam seminar report, ppt, pdf. Installations where lightning protection is highly. Lightning protection using lfam seminar report, ppt. Lightning protection using lfam seminar report scribd.
Due to a special inner structure of the lfa, its impulse flashover voltage is less than that of the insulator which it protects. A single lfa per support or pole is found to be sufficient to. Mar 28, 2019 welcome lightning protection using lfam submitted by. The multipoint discharge method of lightning protec tion was patented in 1930. Zipse, fellow, ieee abstractthe successful 200yearold method of using a franklin rod to collect, control, and convey to earth the awesome and destructive power of lightning. The documentations also focused on the use of an insulator with characteristic lfa. Design guidelines for proper lightning protection system. Zipse, fellow, ieee abstractthe successful 200yearold method of using a franklin rod to collect, control, and convey to earth the awesome and destructive power of lightning has produced other controversial, potential alternate methods.
During 19952003, streamer electric company developed a lightning protection system for 10kv ohls by means of long flashover arresters lfa 1,2. A new simple, effective and inexpensive method for lightning protection of medium voltage overhead distribution line is using long flashover arresters lfa. Organ works two aequali the site is also available in several languages. Lightning protection of the electrical system has always been a concern. Reported is design of a compact 35 kv overhead line using two and threelayer covered conductors and 10 kv poles and rightofways. Iris scanning seminar report, ppt, pdf for ece students. A practical guide to lightning protection and australia and nz.
Apr 24, 2020 lightning protection using lfa lightning frequency arrester thank you 5 months ago. Study of lightning safety distance using rolling sphere method. The lfa s length may be several times greater than that of an insulator string, etc. Lightning protection using lfa m free download as powerpoint presentation. Lightning protection using lfam presentation lightning. As indicated before, the coordination of arrester lfa a is not depend on the grounding resistance because. Get lightning protection using lfa m seminar report and ppt in pdf and doc. The protection zone can be visualized as the surface of a.
The methods presented are the traditional shield wire and a newer and growing approach to use. Development of long flashover and multichamber arresters and. Explore lightning protection using lfa m with free download of seminar report and ppt in pdf and doc format. Lightning protection of 10 kv overhead lines using modular. Lightning protection using lfa lightning frequency arrester thank you 5 months ago. Also explore the seminar topics paper on iris scanning with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016. Lfals help avoid both conductor burnouts and overhead power lines outages caused by lightning induced over voltages. When the potential between the cloud and line exceed the breakdown value of air, the lightning. Welcome lightning protection using lfa m submitted by. It can serve as a useful guide to justify additional cost incurred by additioh. This seminar report describes the long flashover arrester lfa, method for lightning protection, working principle, design of lfa m, its main applications and laboratory test results. Lightning protection using lfam insulator electricity. Lightning protection using lfammy ppt lightning insulator.
M indicates that lfam is for the protection of medium overhead transmission lines. Preface with the increased use of sensitive electronic equipment and greater awareness of structural protection, the need for certified lightning protection is increasing. Jan, 2018 a new simple, effective and inexpensive method for lightning protection of medium voltage overhead distribution line is using long flashover arresters lfa. He evidently dis carded the dissipation method in favor of the rod. M indicates that lfa m is for the protection of medium overhead transmission lines.
Scribd is the worlds largest social reading and publishing site. Lightening protection using lfa m system a system of lightning protection conductors lightning rods installed on the. The lfa operating principle is that a rather long flashover path on the lfa surface is ensured with the use. Lightning protection of distribution lines by long flashover arresters lfa. This standard covers a wide range of structures that are used in commercial and industrial applications. There are some applications where it becomes difficult to use the standard in its entirety. A single lfa per support or pole is found to be sufficient to protect an over head line against induced over voltages. Separate the antenna tower from the equipment building by a minimum of 30 feet. Lightning protection using lfa lightning frequency arrester.
Lightning protection using lfa m presentation free download as powerpoint presentation. Then mail to us immediately to get the full report. The basis of conventional lightning protection technology. Dec 10, 2017 download lightning pdf professional for free. Now the third revised edition of the english lightning protection guide is available. Takes place when clouds are charged to a high potential electrical discharge between a cloud and earth a huge spark if the cloud p shift too nearer to cloud q,then lightning discharge lfaj occur between them and charges on both these cloud disappear quickly. Also explore the seminar topics paper on lightning protection using lfa m with. Lightning protection using lfam seminar report, ppt, pdf for. Application of the lightning location system for the selection of. The goal of this course is to learn how to design lightning protection systems. The lightning protection institute is a nationwide notforprofit organization founded in 1955 to promote lightning protection education, awareness, and safety. Pdf overhead lines lightning protection by multichamber. Standard for the installation of lightning protection systems.
Lightning protection using lfam seminar report, ppt for ece. The important feature of this modular long flashover arrester lfam is that it can be applied for lightning protection of overhead distribution line against both induced overvoltages and direct lightning strokes. Also explore the seminar topics paper on lightning protection using lfa m with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016. Its lightning and conductorburn protection system is based on. Lightning protection of distribution lines by long flashover arresters. A line with lfa arresters and ins 160 insulators is shown to have a good lightning protection performance for direct lightning strokes. Takes place when clouds are charged to a high potential electrical discharge between a cloud and earth a huge spark if the cloud p shift too nearer to cloud q,then lightning discharge lfa. For grounding resistance r g 10 w, lfa 10m arresters assure a 200fold decrease of lightning. Lightning protection of distribution lines by long. Long flashover arrestors are those devices which capture the high voltage sparks resulting out of lightening. The answers, however, to the previous 10 questions are equally important in the assessment of the need for lightning protection. Again, requirements for lighter, more mobile systems drove designers to use nonconducting composites for their systems. Lightning protection initially as part of an nfpa task force, since disbanded assembled for the purpose of responding to the nfpa standards committee decision 0030, specifically the request for technical substantiation of the lightning protection techniques and practice contained in modern lightning protection standards.
A proper lightning protection system design is very important to ensure increased protection of a building against lightning and its effects. When the potential between the cloud and line exceed the breakdown value of air, the lightning discharge occurs between the cloud and the line. Lightning pdf professional is an allin1 pdf solution for creating industrystandard pdf files, editing pdf text and images, converting pdfs to office documents, adding comments plus editing and filling in pdf forms. Development of long flashover and multichamber arresters.
By using our websites, you agree to the placement of these cookies. Lightning protection using lfam seminar report free download as word doc. Transmission lines are particularly vulnerable due to their height and the length of transmission lines. Takes place when clouds are charged to a high potential electrical discharge between a cloud and earth a huge spark if the cloud p shift too nearer to cloud q,then lightning discharge lfa j occur between them and charges on both these cloud disappear quickly. The paper describes a new method of lightning protection of overhead distribution lines by long flashover arresters lfa which were invented and developed by the authors. It can be applied for lightning protection of overhead distribution line against both induced over voltages and direct lightning. The lfa principle, its main applications and some laboratory test results are presented. State of the art for the installation of lightning protection systems 0. The paper first derives a set of shielding constraints which must be satisfied for achieving effective shielding against lightning. Training on the rolling sphere method of lightning protection and shielding for substations using ieee std. Also get the seminar topic paper on lightning protection using lfa m with abstract or synopsis, documentation on advantages and disadvantages, presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2016 2017.
Outages of overhead power lines due to lightning strokes are one of the main causes of. The lfas are lowcost arresters which are installed in parallel or in series to the line insulators. The substation earthing layout design shall identify lightning spire and lightning shield wire placement whilst maintaining the required access and safety clearances in. Lightning protection using lfa m free download as word doc. Explore iris scanning with free download of seminar report and ppt in pdf and doc format.
In 1955, the lightning protection institute lpi 4 was formed. Dec 17, 2015 get lightning protection using lfa m seminar report and ppt in pdf and doc. Main feature of lfas is increased length of lightning flashover path. Welcome lightning protection using lfam submitted by. Russia were constructed with no lightning protection at all.
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