A high-voltage external series gap lightning protection combination device

Abstract

The invention discloses a high-voltage external series gap anti-thunder combination device. The anti-thunder combination device comprises two parts of a discharge gap component arranged at the upper portion and a zinc oxide valve plate component arranged at the lower portion, and the discharge gap component is connected to the zinc oxide valve plate component through a stud; the high-voltage external series gap anti-thunder combination device prevents a 10 kV high-voltage wire from being damaged by thunder, improves convenience of construction and installation and stability of equipment operation, and improves the equipment operation parameter; horizontal discharging is maintain in a gap, and line short circuit caused by rainwater or freezing during together vertical discharging; a quality stainless steel metal electrode is adopted to replace a traditional aluminum electrode to enhance firing-resistance capability, and the service life is prolonged; a new technology is adopted to manufacture a zinc oxide valve plate so that the conduction capacity can be big.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a high-voltage external series gap lightning protection combination device. Background technique [0002] The function of the lightning arrester is to protect various electrical equipment in the low-voltage power distribution system from being damaged by lightning overvoltage, operating overvoltage, and power frequency transient overvoltage. [0003] Existing lightning protection devices have the following deficiencies: [0004] 1. The lightning arrester is used alone, and the service life is short; [0005] 2. If the gap is used alone, the freewheeling flow cannot be cut off, and the tripping rate of the line is high; [0006] 3. The arrester is matched with the gap, the gap distance is not fixed, and the discharge is unstable; [0007] 4. Integrated molding device, the lightning arrester needs to be replaced as a whole during transformation, which is uneconomical ...

AI Technical Summary

Problems solved by technology

[0004] 1. The lightning arrester is used alone, and the service life is short;

[0005] 2. If the gap is used alone, the freewheeling flow cannot be cut off, and the tripping rate of the line is high;

[0006] 3. The arrester is matched with the gap, the gap distance is not fixed, and the discharge is unstable;

[0007] 4. Integrated molding device, the lightning arrester needs to be replaced as a whole during transformation, which is uneconomical and inflexible

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