Ceramic insulator provided with heat absorbing and ice melting device

Abstract

A ceramic insulator provided with a heat absorbing and ice melting device comprises a mandrel, an umbrella skirt which covers the mandrel, the heat absorbing and ice melting device, a supporting block, a dripping eave which is fixed to the top part of the supporting block, a connecting rod, a brush plate, a steel cap, a bearing, blades and an extending rod, wherein the steel cap, the supporting block, the umbrella skirt set and the heat absorbing and ice melting device are sequentially arranged on the outer side of the mandrel from top to bottom; the bearing is arranged on the outer side of the steel cap; the blades are fixed to two sides of the bearing through the extending rods; the brush plate is fixed to the lower end of the bearing through a connecting rod. The ceramic insulator provided with the heat absorbing and ice melting device is simple in structure, and reasonable in design; the umbrella skirt set formed by alternative big and small umbrellas is provided, and the bottom parts of the umbrella bodies are provided with wave-shaped concave-convex surfaces, so that the creepage distance is increased under the same quantity of umbrella sheet; meanwhile, the probability of electric arc bridging among the umbrellas is reduced, thus the flashover voltage is improved; pollutants are prevented from falling among the umbrella bodies to cause dust accumulation, and as a result,the insulator is kept clean.

Description

technical field [0001] The invention relates to a porcelain insulator with a heat-absorbing and ice-melting device. Background technique [0002] Icing of transmission lines often occurs in cities in northern my country due to the cold winter. In recent years, serious accidents of insulator flashover and tripping of transmission lines due to icing have occurred frequently, which not only caused huge economic losses, but also seriously affected the power grid. safe operation and the normal life of the masses. Therefore, it is necessary to delay the bridging time of icing and ice slug and increase the flashover voltage of ice-covered power frequency when the transmission line forms icing, which is very necessary to ensure the safe operation of the transmission line. At present, to deal with accidents caused by icing, the main countermeasures are to lengthen the length of the insulator string to increase the flashover voltage. This method requires the abolition of the original ...

AI Technical Summary

Problems solved by technology

At present, to deal with accidents caused by icing, the main countermeasures are to lengthen the length of the insulator string to increase the flashover voltage. This method requires the abolition of the original tower and then re-erecting the tower, which increases the area of ​​the line corridor passage, resulting in high cost of renovation. High, very complicated and inconvenient to operate. At the same time, because birds land on the top of the high-voltage iron tower insulators, defecate and pollute the insulators, cause single-phase grounding or cause air gap breakdown of charged parts, resulting in frequent line tripping accidents

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