Abstract:
A sparkgap assembly for a surge voltage arrester is provided with a plurality of elongated electrodes mounted between stacked plates of insulating material to form a zigzag discharge path through the sparkgap assembly when it is sparked over. The sparkgap assembly is provided with uniquely formed end plates that provide corona shielding and contact the outer electrodes of the assembly in a manner such that these electrodes develop an arc-moving, horngap effect when an overvoltage surge is discharged through the assembly.
Abstract:
A lightning arrester characterized by having a plurality of self-supporting, semi-annular shaped voltage grading resistors that are adapted to support the weight of spark gap assemblies which are electrically connected in parallel therewith.
Abstract:
A sparkgap assembly for a surge voltage arrester is provided with arc-elongating teeth and arcing chamber wall means that, in combination, afford an optimum heat sink arrangement for cooling and extinguishing arcs formed therein by sparkover of the arrester. The characteristic heat sink means of the assembly operates to stabilize its mechanical and thermal characteristics so that the re-seal voltage of the arrester is increased without developing excessive arrester arc voltage, thus, affording performance characteristics that were not possible with prior art sparkgap assemblies.