High-voltage insulation terminal pollution flashover index equivalent judgment device

Abstract

The invention discloses an equivalent judgment device for a pollution flashover index of a high-voltage insulation terminal. The high-voltage insulation terminal is mounted on a supporting column through a rotating motor, and the rotating motor drives the high-voltage insulation terminal to rotate; a water collector is arranged below the high-voltage insulation terminal, a surface dirt detection probe and a dripping nozzle are arranged on one side of the high-voltage insulation terminal, the dripping nozzle is connected with a water tank through a water pump, and a salt density detection probe is arranged in the water collector; and the dirt detection probe and the salt density detection probe are communicated with the signal acquisition and transmission device. According to the invention, the operation performance state of the high-voltage insulator can be monitored, the pollution flashover degree of the insulator can be mastered at any time by monitoring the operation performance state of the high-voltage insulator, and reliable and timely scientific data support is provided for cleaning, replacement and maintenance of the insulator.

Description

technical field [0001] The invention relates to a device for judging an equivalent pollution flashover index of a high-voltage insulated terminal. Background technique [0002] In the atmospheric environment, affected by environmental factors such as industrial emissions and natural dust, a layer of dirt is gradually deposited on the surface of the insulator. In wet weather such as fog, dew, drizzle, and melting ice and snow, the dissolved salts in the dirt layer on the surface of the insulator will dissolve in water to form a conductive water film, allowing leakage current to flow along the surface of the insulator. However, due to the influence of the shape, structure size and other factors of the insulator, the current density of each part of the surface is different, until the electric field strength is large enough, a local arc will be generated in the creeping discharge across the dry area. When the dirt and humidity are serious, the local arc reaches or exceeds the c...

AI Technical Summary

Problems solved by technology

However, due to the influence of factors such as the shape and structural size of the insulator, the current density of each part of the surface is different, until the electric field strength is large enough, a local arc will be generated in the surface discharge across the dry area.

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