一种防绕击和防反击的灭弧防雷结构及灭弧防雷方法
By employing an arc-extinguishing and lightning protection structure that prevents lightning strikes from backflashing and backflashing, and utilizing the electrohydraulic effect in the lightning arresting ball and arc-extinguishing chamber, the backflashing is converted into a rod strike and induced charge is collected, thus solving the problems of lightning strikes from backflashing and backflashing, suppressing lightning current and eliminating overvoltage, and improving the safety and reliability of transmission lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 南宁超伏电气科技有限公司
- Filing Date
- 2023-03-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lightning protection devices are prone to lightning backflash or lightning strikes on transmission lines, leading to overvoltage and tripping accidents. This is especially true on overhead lines in plains where the backflash current is large and the surge impedance is high, causing insulation breakdown and line breakage accidents.
The arc-extinguishing and lightning protection structure adopts anti-flashover and anti-backflashover protection, including a lightning arresting ball, an arc-extinguishing chamber, and a large-plate water capacitor structure. The lightning arresting ball converts the flashover into a rod strike, and the liquid-electric effect and water capacitor in the arc-extinguishing chamber collect induced charges to form a Coulomb induced charge cluster, which suppresses the amplitude and maximum steepness of the lightning current and eliminates backflashover overvoltage.
Increase the lightning attraction range, suppress the amplitude and maximum steepness of the lightning current, reduce backflash overvoltage, improve lightning withstand level, reduce lightning trip rate, and improve the safe and reliable power supply of the line.
Smart Images
Figure CN116207616B_ABST