Long Flashover Arrester (LFA) Seminar Report

Long Flashover Arrester (LFA) Seminar Report: Abstract 

The seminar report describes a new simple, an effective and inexpensive method of lightning protection of overhead distribution lines using long flashover arresters (LFA). A new long flashover arrester model has been developed. It is designated as LFA-M. It offers a great number of technical and economic advantages. The important feature of this modular long flashover arrester (LFA-M) is that it can be applied for lightning protection of overhead distribution line against both induced overvoltage and direct lightning strokes. The induced overvoltages can be counteracted by installing a single arrester on an overhead line support (pole). For the protection of lines against direct lightning strokes, the arresters are connected between the poles and all of the phase conductors in parallel with the insulators.

This Seminar report describes the LFA Principle, Design of LFA-M, Flashover Performances, etc.  The report also focused on the use of an insulator with characteristic LFA (ILFA). With the use of LFAs or ILFAs, the number of line outages may be drastically reduced. The LFA principle, its main applications and some laboratory test results are presented.
The topics which are significantly covered in this seminar report are Protection against direct lightning strokes, general pattern of direct lightning strokes, protection  using  LFA-M, critical gradient and length  of LFA-M, Performance analysis of direct lightning stroke protection, Flow  chart of  lightning  overvoltage  protection, Voltage-time  charateristics of  arresters and  insulators, Efficiency of  LFA-M, Grounding  resistance  and  reduction  factor and the Future expansion
Some supporting documents are also given below to learn more about Long Flashover Arrester (LFA) which may help you to make a better Seminar Report.

Download Seminar Report on Application of Long Flashover Arresters for improvement of lightning protection and operating voltage reliability of distribution lines  pdf