Anti-lightning protection gap for traction power supply system of electrified railway

Abstract

The invention discloses an anti-lightning protection gap for a traction power supply system of an electrified railway, comprising a suspension insulator. An upper metal fitting of the suspension insulator is connected with an upright post of the traction power supply system and then is grounded, and a lower metal fitting thereof is connected with an F wire of the traction power supply system. The anti-lightning protection gap is characterized in that a horn electrode 4 is installed on the upper metal fitting of the suspension insulator and a bar electrode 5 with a bulb is installed on the lower metal fitting of the suspension insulator. An air gap 6 is formed between the horn electrode 4 and the bar electrode 5 with the bulb. The horn electrode 4 and the bar electrode 5 with the bulb are installed over against each other up and down and extend to the side far away from the power supply system. The anti-lightning protection gap is characterized by good economy, easy installation and high reliability and is especially suitable for being used on the F wire suspension insulator of the 27.5kV electrified railway.

Description

technical field [0001] The invention relates to an electrified railway traction power supply system, in particular to a lightning protection gap for the electrified railway traction power supply system, which is especially suitable for use on the suspension insulator of the F line of the 27.5KV electrified railway. Background technique [0002] In recent years, my country's electrified railway has developed very rapidly. The electrification of old lines, the operation of passenger dedicated lines, and the start of the Beijing-Shanghai high-speed railway have all put forward higher requirements for the reliability of the traction power supply system. At present, my country's existing electrification There are basically no reliable lightning protection measures for railways. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is: on the basis of the mature and reliable protection gap of th...

AI Technical Summary

Problems solved by technology

[0002] In recent years, my country's electrified railway has developed very rapidly. The electrification of old lines, the operation of passenger dedicated lines, and the start of the Beijing-Shanghai high-speed railway have all put forward higher requirements for the reliability of the traction power supply system. At present, my country's existing electrification There are basically no reliable lightning protection measures for railways

Images