Wireless rapid detection system and method for potential and temperature distribution of lightning arrester

Abstract

The invention relates to a wireless rapid detection system and method for potential and temperature distribution of a lightning arrester, and belongs to the technical field of health state and voltagesharing detection before operation of the lightning arrester in the power industry; and the system and method can be used to rapidly detect the health and voltage-sharing conditions of the lightningarrester before operation. The system is composed of test probes, a wireless receiver and a far-end computer; a sheath of the lightning arrester is internally provided with valve blocks of the lightning arrester, each test probe is inserted between two valve blocks of the lightning arrester, so that distribution potential of the valve blocks in different heights can be tested; and the test probesare wirelessly connected with the wireless receiver, and the wireless receiver is connected with the far-end computer via a USB line. According to the system and method of the invention, debugging andmaintenance time can be shortened greatly, safe and stable operation of the lightning arrester is ensured, the personnel safety is guaranteed, the detection efficiency is improved, and the maintenance period of the system is shortened; and the accuracy of test data is improved, and the system and method are highly practical and targeted and have high application values.

Description

technical field [0001] The invention belongs to the technical field of detection of the health status and voltage equalization of arresters before they are put into operation in the electric power industry, and in particular relates to a wireless rapid detection system and method for potential distribution and temperature distribution of arresters, which are suitable for rapid detection of the health status and voltage equalization of arresters before they are put into operation. detection. Background technique [0002] In recent years, the power system attaches great importance to the operation performance of the surge arresters that have been widely used in the power grid. AC non-gap metal oxide arrester, hereinafter referred to as arrester. Due to its excellent electrical performance, it has been widely used in systems since the 1980s, replacing traditional silicon carbide (SiC) arresters. [0003] Whether the potential distribution of the arrester is reasonable or not ...

AI Technical Summary

Problems solved by technology

The optical fiber-current method uses optical fiber to carry out wired data transmission. The disadvantages are that a set of optical receivers has limited measurement points, poor scalability, heavy cable laying workload, and short battery life in the measurement probe. When testing with only test points, you can only repeatedly view the waveform of a single channel, which is very difficult

Since it takes time to switch the test channel, if the power grid fluctuates at this time, the test results of the distribution potential of the valve will fluctuate accordingly, resulting in inconsistency of data

Frequent replacement of measuring probe batteries is heavy workload

At the same time, the test data of the measuring probe is transmitted out of the arrester through the optical fiber. The optical fiber is easily damaged, and the structure of the arrester needs to be destroyed in order to lead out the optical fiber.

Images