IMPULSE LIGHTNING ARRESTERS AND PULSE ARRESTER COLUMNS FOR POWER LINES

摘要

The inventive arrester comprises series connected disruptive air gaps assembled in a chain-like manner. Said chain comprises an odd number of disruptive modules assembled in chain-like manner. In order to increase the reliability of the arrester by obtaining a low protection level of the arrester for protecting elements having a flat volt-second characteristic, each current conducting element used for equalizing the voltage of all disruptive modules, is arranged between an output of the corresponding disruptive module and one of the clamps connecting the arrester to a protected element, and embodied in the form of a resistor. The output of each odd disruptive module, except the last one, is connected to a clamp with the aid of a resister. The inventive arrester is embodied in such a way that makes it possible to form a sliding surface discharge and can comprise a tubular body made of a solid-state dielectric which is common for all disruptive modules, or several tubular bodies.