500kv transmission line insulator live water washing method

Abstract

The invention provides a 500 KV electric transmission line insulator electrification water washing method. The method mainly comprises the steps of setting the water resistivity of water and adjusting pressure of a hydraulic giant; judging the wind direction and wind power on a tower and adjusting the length of a water column according to the wind direction and the wind power; placing the hydraulic giant at a given position and washing triphase insulators of 500 KV electric transmission lines in sequence from bottom to top; washing insulator chains on the downwind side firstly and then washing insulator chains on the weather side during insulator chain washing, and washing piece by piece from bottom to top and washing by starting from the wire side in sequence for suspension insulator chains; and judging whether phenomena of sewage dripping and partial arcing striking appear for washed insulators, and rewashing corresponding insulators if the phenomena appear. The 500 KV electric transmission line insulator electrification water washing method enables electrification water washing to be achievable for most of the 500 KV electric transmission lines, line outrage is reduced, pollution flashover is avoided, safety and stability of power grids are ensured, and good economic and social benefits are created.

Description

technical field [0001] The invention relates to anti-pollution flashover technology for high-voltage transmission lines, in particular to a method for flushing charged water insulators of 500kV transmission lines. Background technique [0002] With the rapid development of industrial economy and urban construction, more and more requirements are put forward for the continuity and quality of power supply, to prevent pollution flashover of transmission lines, prevent large-scale power outages in the power grid, and ensure safe and stable operation of the power grid and reliable power Supply is very important. However, transmission line equipment has been exposed to nature for a long time, especially in industrial areas, coastal areas and saline-alkali areas. It is affected by industrial waste gas, sea water or natural saline-alkali, dust, and usually forms a certain degree of pollution on the surface of its insulators. These pollutants containing salt, acid, and alkaline comp...

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Problems solved by technology

[0004] At present, the washing method for 500kV transmission line insulators is generally inefficient. Therefore, the washing of 500kV transmission line insulators is still an anti-pollution technical problem to be solved.

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