Detection method of metal oxide lightning arrester through live-line work robot

Abstract

The invention provides a detection method of a metal oxide lightning arrester through a live-line work robot. A mechanical arm of the robot responds to control data, and caries a leakage current measurement device, a high sensitivity electronic type current transformer and an infrared detector. Movement and data detection is performed around the metal oxide lightning arrester. A data processing and control system processes detection data of each detection device, and compares acquired related index values with normal values in a database so as to judge working states of the metal oxide lightning arrester, thereby forming a detection report. According to the invention, the mechanical arm of the live-line work robot carries out live-line detection on the metal oxide lightning arrester in a way of shaking operation or autonomous working, so a worker is protected against risks during working near a live-line high-voltage line, working steps are simplified and detection precision is improved.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a detection method for a metal oxide arrester of a live working robot. Background technique [0002] Metal oxide surge arresters are widely used in power transmission and distribution lines of today's power systems, and have become one of the main devices for overvoltage protection in power systems. It is mainly used to limit the internal overvoltage caused by lightning overvoltage from the line or operation. Due to its excellent nonlinearity and large flow capacity, it has been widely used in power grids. However, in long-term operation, metal oxide arresters may have problems such as loose nuts, cracked porcelain sleeves, and aging rubber rings, which need to be inspected and replaced. [0003] The earliest and more common method is the periodic preventive test, that is, to measure the leakage current of the metal oxide arrester under the specified referenc...

AI Technical Summary

Problems solved by technology

However, if the blackout area is large, it will cause immeasurable losses and seriously affect the economic and social benefits of power supply enterprises.

Now the majority of researchers are also actively studying the method of online monitoring of metal oxide arresters, but this method needs to modify the line and cannot be applied to the old line

Metal oxide surge arresters can also be maintained manually, and operators will work near high-voltage live lines, which has certain potential safety hazards

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