UHV lightning arrester simulation training system

Abstract

The invention relates to an UHV lightning arrester simulation training system, which comprises a data processing center, a data interaction processing interface module, a man-machine interface, an optical fiber data communication module, a power supply control measurement module, a harmonic power supply module, a power frequency high-voltage power supply module, a voltage divider, a high-voltage lightning arrester, a temperature and humidity measurement module, a lightning arrester resistive current precision measurement module and an SO2 environment testing module, wherein the data processingcenter, the man-machine interface and the data interaction processing interface module are completed by means of a calculation control platform, a host of the calculation control platform is an industrial control computer equipped with an optical fiber conversion module, and the host of the calculation control platform is connected with the power supply control measurement module, the lightning arrester resistive current precision measurement module and the SO2 environment testing module. The UHV lightning arrester simulation training system can simulate actual operating conditions of a powersystem lightning arrester through combined action of simulating two factors including the electrical properties of the power system lightning arrester and natural environment, and improves the teaching quality.

Description

technical field [0001] The invention relates to the field of power system test simulation, and more specifically relates to a simulation training system for UHV DC arresters. Background technique [0002] As an important overvoltage protection device in the power system, the arrester's safe operation is crucial to the safe operation of the power equipment and even the entire high-voltage system. In normal operation, the valve plate is affected by the operating voltage of the power system for a long time, as well as internal damp or overheating and other factors, which will cause the deterioration of the non-linear resistance characteristics of the valve plate. This deterioration is mainly manifested in the increase of resistive current under normal voltage, the increase of resistive current leads to the increase of calorific value, the temperature inside the arrester rises, and the temperature rise accelerates the aging of the valve plate, forming a vicious circle, and final...

AI Technical Summary

Problems solved by technology

In normal operation, the valve plate is affected by the operating voltage of the power system for a long time, as well as internal moisture or overheating, which will cause the deterioration of the non-linear resistance characteristics of the valve plate

This deterioration is mainly manifested in the increase of resistive current under normal voltage, the increase of resistive current leads to the increase of calorific value, the temperature inside the arrester rises, and the temperature rise accelerates the aging of the valve plate, forming a vicious circle, and finally leads to the zinc oxide arrester due to Damage due to overheating may cause the arrester to explode in severe cases, causing large-scale power outages, resulting in serious economic losses

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