Solid-phase type line span center lightning stroke flashover arc extinguishing lightning arrester

A lightning flashover and line span technology, which is applied to overvoltage arresters, circuits, and electrical components using spark gaps, can solve problems such as huge induced overvoltage, large resistance, and insulator flashover, and achieve light weight and effective Action, easy installation effect

CN106374338AActive Publication Date: 2017-02-01王巨丰 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-02-01

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Abstract

The invention discloses a solid-phase type line span center lightning stroke flashover arc extinguishing lightning arrester. The solid-phase type line span center lightning stroke flashover arc extinguishing lightning arrester comprises lightning protection lines (3), conductive wires (6) and arc extinguishing lightning arresters (4); the arc extinguishing lightning arresters (4) are fixed at the span centers of lightning protection lines (3) and the conductive wires (6) respectively in pairs or at different positions of the spans of the lightning protection lines (3) and the conductive wires (6); and a pair of arc extinguishing lightning arresters (4) on each lightning protection line (3) and each conductive wire (6) form an arc extinguishing lightning protection gap between the lightning protection line and the conductive wire. As the solid-phase type arc extinguishing lightning protection technology is adopted, arc extinguishing becomes faster and more efficient, arc extinguishing energy packages have huge energy and can extinguish big arc rapidly and exactly; the arc extinguishing energy packages inside the span center lightning stroke flashover arc extinguishing lightning arrester can be converted automatically, so that effective actions under the condition of multiple lightning strokes are realized; an upper cover can be dismantled, so that the arc extinguishing energy packages can be replaced and repeated use is realized; the solid-phase type line span center lightning stroke flashover arc extinguishing lightning arrester is light in weight and convenient to install, cannot result in excessive bearing burden for the original conductive wires, the original lightning protection lines, and the original poles and towers, and is relatively strong in practicability.
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Description

technical field

[0001] The invention relates to the technical field of high-voltage power transmission arc extinguishing and lightning protection equipment, in particular to a solid-phase line span central lightning flashover arc extinguishing and lightning protection device. Background technique

[0002] At present, lightning protection of transmission lines has always been an important part of the lightning protection work of the power sector, and lightning strike accidents are still one of the important factors affecting the safety of the power grid. my country's current overvoltage protection design specification stipulates that the air gap S (measured in m) is calculated according to the formula: S=0.012l+1 (m), where l is the span (unit m). According to this formula, the counterattack phenomenon when lightning strikes the central lightning protection line is not considered. However, in the actual operation process, lightning strikes at the center of the span occur fro...

Examples

Embodiment 1

[0025] A solid-phase line span central lightning flashover arc extinguishing arrester, comprising a lightning arrester (3) and a wire (6), and also includes an arc extinguishing arrester (4), the arc extinguishing arrester (4 ) are fixed in pairs respectively at the center of the span of the lightning conductor (3) and the conductor (6) or at different positions of the span of the lightning conductor (3) and the conductor (6), one of the lightning conductor (3) and the conductor (6) The arc extinguishing lightning protection device (4) forms the arc extinguishing lightning protection gap between the lightning protection line and the conductor.

[0026]The arc extinguishing and lightning arrester (4) is mainly composed of a lightning arrester housing (201), an arc extinguishing turntable (202), a conductive metal plate (203), a plane scroll spring (204), and an L-shaped trigger electrode (206). ) is composed of arc striking rod (207), locking rod (208), Rogowski coil (209), arc...

Embodiment 2

[0028] The difference from Embodiment 1 is that the arc extinguishing and lightning protection device (4) adopts a unique locking and dislocation method, that is, when the arc extinguishing gas pill (205) is in the gas pill trigger position, the L-shaped trigger The tail of the electrode (206) is blocked by the locking rod (208) until the arc extinguishing gas pill (205) is triggered, and the arc extinguishing gas pill (205) generates a strong air flow after being triggered, so that the L at the groove (213) is The L-shaped trigger electrode (206) is bent along the groove (213), and the tail of the L-shaped trigger electrode (206) is retracted into the arc extinguishing turntable (202) so as to be successfully dislocated so that the arc extinguishing turntable (202) can be in the plane scroll spring (204) Rotate under the effect of the arc until the next arc extinguishing gas pill (205) enters the gas pill trigger position, and the L-shaped trigger electrode (206) matched with ...

Embodiment 3

[0032] The difference from implementation 1 or 2 is that the arc extinguishing cylinder (210) adopts a three-stage structure, that is, the three-stage arc extinguishing cylinder is connected by thread connection.