Portable surge arrester live detection instrument based on wireless synchronization technology

Abstract

The invention belongs to the technical field of charged detection of power equipment, and particularly relates to a portable charged lightning arrester detector based on a wireless synchronization technology. The portable charged lightning arrester detector based on the wireless synchronization technology is accurate in measurement and low in power consumption. The detector comprises a current acquisition module and a voltage acquisition module, and is structurally characterized in that the current acquisition module comprises a current detection shell, a current power control board, a current battery cell, a current sampling resistor, a current clip, a current cable, a current plug, a current filter circuit, a current debugging interface, a current indicating lamp, a current amplifier, a current processor, a current wireless communication chip and a current antenna; and the current power control board, the current battery cell, the current sampling resistor, the current filter circuit, the current debugging interface, the current indicating lamp, the current amplifier, the current processor and the current wireless communication chip are arranged in the current detection shell.

Description

technical field [0001] The invention belongs to the technical field of electrification detection of electric power equipment, and in particular relates to a portable lightning arrester electrification detection instrument based on wireless synchronization technology. Background technique [0002] Metal Oxide Arrester (MOA) is an important protective device used to protect the insulation of power transmission and transformation equipment from overvoltage hazards. It plays an important protective role in the safe operation of the power system. [0003] MOA will generate leakage current in the running state. The leakage current is divided into capacitive and resistive leakage current. The capacitive current only affects the voltage distribution of the arrester, and the resistive current component is directly related to the insulation state of the arrester. When the arrester is in normal operation, the resistive current is usually small, but when the arrester is in an abnormal ...

AI Technical Summary

Problems solved by technology

However, judging from the collected data of the currently installed lightning arrester online equipment, the overall measurement accuracy is not high enough

Although the portable detection equipment cannot detect in real time, its accuracy is high. At the same time, since the inspectors are on site, it is more beneficial to determine the working status of the arrester. Therefore, it is essential to use portable equipment for regular inspection of the arrester.

[0005] However, traditional portable surge arrester detection equipment uses cables to transmit signals to the detection equipment. Due to the actual distribution of on-site surge arresters, the distance from the collection point of the voltage signal and other factors, the field wiring is extremely complicated, and the long cable gives the signal. Acquisition and measurement accuracy have varying degrees of impact

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