High-weldability intelligent multi-layer gap overvoltage protector based on copper-chromium alloy material

The invention discloses a high-weldability intelligent multi-layer gap overvoltage protector based on a copper-chromium alloy material, which is characterized in that a multi-layer discharge gap formed by a plurality of electrodes made of the copper-chromium alloy material is arranged in an insulating shell, each electrode is insulated and isolated by an insulating medium, a trigger electrode is designed at the lowest electrode gap of the multi-layer gap, and the trigger electrode can automatically sense, couple and receive energy of lightning overvoltage and trigger the lowest electrode gap of the multi-layer gap and other gaps to be quickly conducted, so that the three-terminal overvoltage protection gap with the multi-layer gap structure has the remarkable characteristics of high direct current breakdown voltage, high voltage protection level, short response time, high power frequency or direct current follow-up current resistance and the like. The intelligent multi-layer gap overvoltage protector can be u