Spiral serial compact type multi-cavity arc extinguishing structure

Abstract

The invention discloses a spiral serial compact type multi-cavity arc extinguishing structure. The spiral serial compact type multi-cavity arc extinguishing structure is cylindrical as a whole, a plurality of layers of disc type structure units connected in series are arranged in the spiral serial compact type multi-cavity arc extinguishing structure, and the plurality of layers of disc type structure units rise spirally as a whole; each layer of disc type structure unit is composed of a plurality of metal spherical electrodes and semi-closed arc extinguishing cavities among the metal spherical electrodes; and the disc type structure units are connected through the tail end electrodes of the adjacent disc type structures, the head end electrodes of the adjacent layers and the semi-closed arc extinguishing cavities between the electrodes. Compared with a vertical series basic structure, the number of the arc extinguishing chambers can be increased in unit height, the overall arc extinguishing capacity of the structure is improved, and meanwhile the size of the overall multi-chamber structure is reduced. The spiral serial compact type multi-cavity arc extinguishing structure can be conveniently used in a multi-cavity lightning protection device. The structure is applied to the field of line lightning protection, lightning damage can be removed in time, the lightning trip-out rate is greatly reduced, and safe and reliable operation of a power transmission line is guaranteed.

Description

technical field [0001] The invention relates to the technical field of overvoltage protection devices, in particular to a spiral series compact multi-chamber arc extinguishing structure. Background technique [0002] With the development of social economy, people's demand for electricity is increasing, and the requirements for technical and economic indicators of power grid operation at various voltage levels are increasing. Lightning is a discharge phenomenon with huge energy. Once the lightning strikes the line or the lightning energy enters the power system, it will cause serious harm to the power system such as line tripping and equipment damage, which seriously threatens the reliability and safety of power supply. Daily needs are in conflict and governance is urgently needed. However, the traditional blockage lightning protection measures cannot fundamentally eliminate the damage caused by lightning strikes, and measures such as installing line metal arresters are econ...

AI Technical Summary

Problems solved by technology

However, the structure of the arc extinguishing chamber unit in the existing structure is simple, and the chamber units are vertically connected in series, which fails to achieve a compact design, resulting in a large number of chamber units and a high structural height, which makes it difficult to install on the actual line.

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