Field anti-pollution flashover processing technology for high-voltage wall bushing

Abstract

The invention discloses a field anti-pollution flashover processing technology for a high-voltage wall bushing, and belongs to the technical field of electrical engineering. According to the technical scheme, firstly, the high-voltage wall bushing is strongly monitored and measured, pollution layer equivalent salt deposit density, specific conductance and leakage current are measured by observing the forming state of a water film on the surface of an insulator and are compared with previous monitoring records, and the probability of pollution flashover is judged; furthermore, in the aspects of three factors, namely, pollution degree, climate conditions and acting voltage, affecting electric strength, technical measures like cleaning and washing, insulation reinforcing, silicone rubber shed booster installing and step-down operation are taken in the field in a targeted mode to improve the anti-pollution flashover level of the high-voltage wall bushing in use. The field anti-pollution flashover processing technology for the high-voltage wall bushing has the advantages that monitoring and measurement can be easily, conveniently, accurately and quickly carried out, the processing measures are applicable and effective, pertinency is high, and the technology is low in cost, high in efficiency and capable of meeting field processing requirements, greatly reduces pollution flashover accidents and guarantees safe operation of power equipment.

Description

technical field [0001] An applicable and effective on-site anti-pollution flashover treatment technology for high-voltage wall-through bushings belongs to the electrical technical field. Background technique [0002] Pollution flashover refers to the fact that the soluble substances of the dirt attached to the insulating surface of electrical equipment gradually dissolve in water under humid conditions, forming a conductive film on the insulating surface, which greatly reduces the insulation level of the insulator. electricity A strong discharge phenomenon under the action of a field. Once pollution flashover occurs on the line, it will cause circuit tripping and large-scale power outages, resulting in system voltage loss, production interruption, and huge economic losses. High-voltage wall bushings are used for power distribution devices and high-voltage electrical appliances in power stations and substations, for wires to pass through grounding partitions, walls or electr...

AI Technical Summary

Problems solved by technology

Once a pollution flashover occurs on the line, it will cause circuit tripping and large-scale power outages, resulting in system pressure loss, production interruption, and huge economic losses