Insulation protection system and method for charging water washing robot in transformer substation

Abstract

The invention discloses an insulation protection system for a charging water washing robot in a transformer substation and an insulation protection method thereof. The system includes a driving control system, a safety control system and an insulation mechanism, wherein the safety control system is used for controlling the distance between the robot and an insulator string in the safety distance and for in real time detecting water pressure and conductivity in a rinsing process on the base of factors which affect insulation safety; an ultrasound sensor and a magnetic field distance measuring sensor are installed on four surfaces of the tail end of a mechanical arm and used for detecting the distance between the tail end of the mechanical arm and charging equipment, a laser distance measuring instrument and a hydraulic giant are in parallel arranged and used for in real time detecting the length of a water column in the rinsing process; the insulation mechanism comprises an insulation support, an insulation bracket and an insulation forming shell. According to the system and the method, water resistance ratio, water pressure, water column length can be online monitored in real time, and thus insulating properties of the robot body and the charging equipment in the transformer substation can be ensured in the rinsing process, and safety of the rinsing operation can be effectively improved.

Description

technical field [0001] The invention relates to an insulation protection system and method for a substation charged water washing robot. Background technique [0002] With the increasing pollution of the air environment, pollution flashover accidents of power grid equipment have increased, seriously affecting the safe operation of power grid equipment. Substation insulators are exposed to the external environment for a long time, and dirt is easy to deposit on the surface. These dirt are prone to pollution flashover accidents when they are damaged by bad weather. According to statistics, insulation flashover accidents caused by pollution have now taken the second place in the total number of power grid accidents. From 1971 to 1994, there were 1,768 pollution flashovers in 35-500kV power generation and substations nationwide. The washing operation of insulators with live water can improve the reliability of power supply, reduce power failure losses, and ensure the safety of ...

AI Technical Summary

Problems solved by technology

[0003] 1. Most of the cleaning methods are carried out by cleaning technicians who enter the site with hand-held cleaning equipment. Manual cleaning not only depends on the weather conditions, but also requires cleaning personnel to have a high technical level and skilled operation procedures. Standardized safety protection to avoid safety accidents caused by short-circuit current, causing casualties. This type of operation method has potential safety hazards;

[0004] 2. Manual operations are faced with many problems such as high labor intensity, low efficiency, and low level of automation;

[0005] 3. It is impossible to monitor the water resistance rate, water pressure, and water column length in real time, to modify the operating status of the robot in real time, and to guarantee the insulation performance of the robot body and live equipment in the substation during the water flushing process;

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