Leakage current monitoring device of lightning arrester

Abstract

The invention provides a leakage current monitoring device of a lightning arrester. The leakage current monitoring device comprises a shell base, an annular shell and a ferromagnetic conduit, wherein the annular shell is fixed on the shell base, and the ferromagnetic conduit is inserted into an inner shell ring of the annular shell. An annular iron core is arranged in the annular shell, a winding coil is wound on the annular iron core, a current sampling circuit, a microprocessor module and a signal transmitter are arranged in the shell base, a sampling end of the current sampling circuit is connected with the winding coil, an output end of the current sampling circuit is connected with the microprocessor module, and the microprocessor module is connected with the signal transmitter and communicated with an upper computer through the signal transmitter. The leakage current monitoring device of the lightning arrester has the advantages of scientific design, simple structure, convenience in mounting, low production cost and good monitoring effect.

Description

technical field [0001] The invention relates to a leakage detection device, in particular to a leakage current monitoring device of a lightning arrester. Background technique [0002] In order to prevent lightning damage caused by lightning, various types of arresters are usually installed in the distribution transformer area to prevent damage caused by lightning. However, during the long-term use of these arresters, it is unavoidable to be eroded or damaged by the external environment, resulting in a decrease in the performance of the arrester, and further leakage of current from the arrester. Since the power supply department conducts regular inspections on the arrester, it is only through the preventive test during the inspection that it can be known whether the arrester is in good condition. However, in actual operation, it is often impossible to find out whether the arrester is leaking current due to the untimely inspection, and the leakage current of the arrester will...

AI Technical Summary

Problems solved by technology

However, in actual operation, it is often impossible to find out whether the arrester is leaking current due to the untimely inspection, and the leakage current of the arrester will cause the line to trip and power outage

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