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Arc-extinguishing lightning protection device based on liquid-electric effect

A lightning protection device, the technology of hydroelectric effect, applied in the direction of corona discharge device, circuit, electrical components, etc., can solve the problem of limited capacity of attenuation current amplitude, reduce the steepness, avoid damage to equipment, prolong the discharge time Effect

Pending Publication Date: 2021-11-02
南宁超伏电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an arc extinguishing and lightning protection device based on the liquid-electric effect to solve the technical problem that the existing lightning protection and arc extinguishing device has limited ability to attenuate the current amplitude

Method used

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  • Arc-extinguishing lightning protection device based on liquid-electric effect
  • Arc-extinguishing lightning protection device based on liquid-electric effect
  • Arc-extinguishing lightning protection device based on liquid-electric effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, an arc extinguishing and lightning protection device based on the liquid-electric effect, the arc extinguishing and lightning protection device is set as a sealed tube, the two ends of the sealed tube are respectively provided with an upper electrode 1 and a lower electrode 6 for sealing, and an insulating oil 2 is arranged inside the sealed tube. The side of the sealing tube is provided with a skirt 4 . The sealed tube also includes a ceramic tube 3 and a protective shell 5 , the protective shell 5 is arranged outside the ceramic tube 3 , and the skirt 4 is set outside the protective shell 5 . The upper electrode 1 includes an upper graphite electrode, a middle metal electrode and a lower graphite electrode, the middle metal electrode is fixed on one end of the ceramic tube 3 and the protective shell 5, the upper graphite electrode is arranged on the upper layer of the middle metal electrode, and the lower graphite electrode is arranged on th...

Embodiment 2

[0046] Such as figure 2 As shown, the difference between this embodiment and Embodiment 1 is that there are more than two arc extinguishing and lightning protection devices, several arc extinguishing and lightning protection devices are fixedly connected end to end, and the low end of the lowest arc extinguishing and lightning protection device is grounded. The arc extinguishing and lightning protection devices in Example 1 are fixedly stacked together, and stacked on the same line at the same time to realize arc extinguishing in multiple stages, so that the effect of each household is better.

Embodiment 3

[0048] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the top or bottom of the arc extinguishing and lightning protection device is provided with a recoil arc extinguishing structure, and the recoil arc extinguishing structure includes a lightning connection electrode 7, a recoil pipe body 8, a recoil arc extinguishing structure, and a recoil arc extinguishing structure. The flushing pipe skirt 9 and the bottom are connected to the lightning pole 10, and the lightning pole 7 is arranged on the top of the recoil pipe body 8, the recoil pipe skirt 9 is arranged on the side of the recoil pipe body 8, and the interior of the recoil pipe body 8 is arranged For the recoil hole 11, the bottom end of the recoil hole 11 is provided with a bottom lightning electrode 9, and the lightning electrode 7 and the bottom lightning electrode 4 are graphite electrodes. When the recoil arc extinguishing structure is arranged on the top, an insulating liq...

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Abstract

The invention discloses an arc-extinguishing lightning protection device based on a liquid-electric effect, and belongs to the technical field of arc-extinguishing lightning protection, the arc-extinguishing lightning protection device is set to a sealing pipe, two ends of the sealing pipe are respectively provided with an upper electrode and a lower electrode which are arranged in a sealing manner, the sealing pipe is internally provided with insulating oil, and the side edge of the sealing pipe is provided with a skirt edge. The electric arc is cut off rapidly, the electric arc discharges in the liquid to generate a liquid-electric effect, impact pressure waves are formed rapidly, and the impact electric arc is cut off immediately when being formed. The reignition of the impact arc is delayed, the continuous discharge condition and the reignition condition are destroyed by high voltage in the ceramic tube, after the impact arc is cut off, the reignition breakdown time is greatly delayed by more than ten to dozens of microseconds, the gradient of lightning current is remarkably reduced by 90%, and the current amplitude is attenuated by more than 50%.

Description

technical field [0001] The invention relates to the technical field of arc extinguishing and lightning protection, in particular to an arc extinguishing and lightning protection device based on the hydroelectric effect. Background technique [0002] Lightning strikes will bring different forms of damage and destruction to power facilities, and thundercloud discharge will cause lightning strike overvoltage in the power system. Lightning overvoltage may cause damage to insulators and transmission lines; the impact flashover caused by lightning strikes on transmission lines will cause flashover of line insulators, and then generate a large power frequency continuous current, damage insulator strings and fittings, and cause line accidents; Electric shock on the transmission line or lightning protection line may cause broken strands or even rupture, making the power transmission work impossible. [0003] The existing lightning protection and arc extinguishing device can make the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T19/04H01T1/08
CPCH01T19/04H01T1/08
Inventor 王嬿蕾王巨丰卢杨骆耀敬宋永锋李浩何琪文贾征浩陈宇宁
Owner 南宁超伏电气科技有限公司
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