LFA (Lightning Frequency Arrester) | Electrical Seminar Topic
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). A new long flashover arrester model has been developed. It is
designated as LFA-M. It offers great number of technical and economical
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 overvoltages and direct lightning
strokes.
The induced over voltages 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.
